CN202446161U - Straight-line cutting stitching instrument using pulling back manner - Google Patents
Straight-line cutting stitching instrument using pulling back manner Download PDFInfo
- Publication number
- CN202446161U CN202446161U CN 201120574787 CN201120574787U CN202446161U CN 202446161 U CN202446161 U CN 202446161U CN 201120574787 CN201120574787 CN 201120574787 CN 201120574787 U CN201120574787 U CN 201120574787U CN 202446161 U CN202446161 U CN 202446161U
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- China
- Prior art keywords
- cutter
- nail bin
- mode
- stiching instrument
- straight cuts
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- Withdrawn - After Issue
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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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- 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
The utility model relates to a straight-line cutting stitching instrument using a pulling back manner, comprising an upper clamping plate, a lower clamping plate, a handle, a nail cabin mounted inside the lower clamping plate, a nail abutting seat fixed in the upper clamping plate, a cutter which is mounted in the nail cabin and can slide along a seam in the nail cabin, and a pulling back mechanism mounted below the nail cabin, wherein the pulling back mechanism comprises a strip-shaped cutter rack, and left and right percussion sheets; the back end of the pulling back mechanism is close to the handle and is provided with a pulling back button; a push-type broach baffle is arranged at the front end of the strip-shaped cutter rack; and the cutter is mounted at the back side of the push-type broach baffle. A transmission mechanism is designed between the cutter and the strip-shaped cutter rack, so that the mechanism can realize a movement manner similar to gashing a wound when the mechanism is pulled back, and the stitching is completed in the whole process; the design of the percussion sheets is simpler, the strength requirement is lower and the consistency of machining and manufacturing is easier to realize; and a pulling back force is smaller than a push force in the prior art and the straight-line cutting stitching instrument has better operability.
Description
Technical field
This utility model relates to a kind of surgical operation and uses medical apparatus and instruments, particularly relates to the pull back straight cuts stiching instrument of mode of a kind of employing.
Background technology
In clinical use; The straight cuts stiching instrument is a kind of disposable use, need not power supply, only relies on mechanical force to carry out tissue from surgical medical equipment disconnected, that excise and sew up, can realize the straight cuts operation to gastrointestinal tract, gynecological, division of chest disease aspect, and this straight cuts stiching instrument can respectively be inserted two row's suturing nails in the both sides of tissue; Cut from disconnected between the tissue of having sewed it up in both sides with push broach simultaneously; Easy to use, significantly reduced operating time, improved the operation quality.
Existing straight cuts stiching instrument adopts one-sided or bilateral pushes away the mode of turning round promotion; Drive push blade and accomplish cutting and stitching with the percussion push jack; When carrying out the tissue cutting and stitching, disposable linear suture device structural member stressed size and the stressed mechanism for implementing mode of apparatus much relations are arranged.Find that in practice above-mentioned existing stiching instrument still has inconvenience in the use:
1, mainly be to rely on thrust to realize cutting and stitching from the near-end to the far-end; This advances the mode of cutter completion joint-cutting very high to the bulk strength requirement of the propulsive mechanism structural member of straight cuts stiching instrument; In propulsive process; The propulsive mechanism structural member of stiching instrument under the effect of thrust the structural member unbalance stress, very easily occur bending and deformation, even can cause other associated members to damage, thereby cause thrust to increase, push away phenomenons such as motionless;
2, make structural member reach certain intensity requirements in order to guarantee, the design of part of existing straight cuts stiching instrument is complicated, and the component processing difficulty is very big, is difficult to guarantee the concordance of apparatus performance;
3, cutting from the near-end to the far-end and suture way do not meet original custom of scratching wound in doctor's operation.
This shows that above-mentioned existing straight cuts stiching instrument obviously still has inconvenience and defective, and demands urgently further improving in structure and use.How to found and a kind ofly cut and sew up, scratch the custom of wound when both having met the surgeon operation, also meet the Mechanics of Machinery principle with cutter by pulling force; Under the situation of pulling back, structural member is stressed evenly, is difficult for occuring bending and deformation simultaneously; The design of corresponding construction spare and processing are simpler; Reliability is higher, the pull back straight cuts stiching instrument of mode of the new employing that practicality is stronger, one of real important research and development problem that belongs to current this area.
The utility model content
The technical problem that this utility model will solve provides the pull back straight cuts stiching instrument of mode of a kind of employing, makes it cut and sew up by pulling force, scratches the custom of wound when both having met the surgeon operation with cutter; Also meet the Mechanics of Machinery principle, under the situation of pulling back, structural member is stressed evenly simultaneously; Be difficult for occuring bending and deformation, the design of corresponding construction spare and processing are simpler, and reliability is higher; Practicality is stronger, thereby overcomes the deficiency of existing straight cuts stiching instrument.
For solving the problems of the technologies described above; This utility model adopts a kind of straight cuts stiching instrument of the mode of pulling back; Comprise train wheel bridge, lower plate, handle, be installed in nail bin in the lower plate, be fixed on nail supporting base in the train wheel bridge, be installed in the nail bin and cutter that can slide along the nail bin centre joint and the mechanism that pulls back that is installed in the nail bin below; Wherein: the mechanism that pulls back comprise band cutter tooth bar with about pull the trigger sheet, its rear end is near handle and be provided with the button of pulling back, band cutter tooth bar front end is provided with the push broach baffle plate; Cutter are installed in push broach baffle plate rear side.
As a kind of improvement of this utility model, described cutter rear portion is a cutter hub, and the front portion is the arc stator, and cutter hub and arc stator joint are fixed with axial rectangle locating piece; Described nail bin inside is provided with the cutter sliding cavity along the centre joint; It is long that the height of this sliding cavity is slightly larger than the minor face of rectangle locating piece; The front end of sliding cavity is a rectangle locating piece containing cavity; The height of this containing cavity is slightly larger than the long length of side of rectangle locating piece, and it is long that the width of containing cavity is slightly larger than the minor face of rectangle locating piece.
Described containing cavity front upper part is provided with the limited step that offsets with the arc stator.
Be fixed with projection on the described rectangle locating piece, the projection upper limb is higher than the upper edge of cutter sliding cavity, and nail bin front end inside vertically is provided with connecting rod, and coiling has spring around the connecting rod, and the spring upper end extends to the projection below.
Described arc stator is semicircle gear piece, band cutter tooth bar front end be provided with can with the dentalation of this semicircle gear piece engagement.
Described cutter hub is two-sided 1/4 circular knife of putting the first edge on a knife or a pair of scissors, cutter hub upper edge level, and the lower edge is a circular arc.
Described sliding cavity top is provided with rectangle fixed block stopper slot along the nail bin centre joint.
Described nail bin rear end is provided with protects the cutter medicated cap.
Described nail bin upper surface is provided with antiskid groove or fin.
Described percussion sheet front end is wedge shape, and about percussion sheet front end phase difference of half seam nail length, about the wedge-like portion of percussion push jack connect as one in the bottom.
After adopting such design, the utlity model has following advantage:
1, between cutter and band cutter tooth bar, designed a drive mechanism, made mechanism in the process of pulling back, can realize and scratch wound similar movement mode, in this process, accomplished simultaneously and sew up;
2, the design of percussion sheet is more simple, and requirement of strength is lower, is easier to realize the concordance of processing and fabricating;
3, to compare the thrust of prior art littler for pull-back forces, has more operability.
Description of drawings
Above-mentioned only is the general introduction of this utility model technical scheme, in order more to know the technological means of understanding this utility model, below in conjunction with the accompanying drawing and the specific embodiment this utility model is done further to specify.
Fig. 1 is the pull back structural representation of straight cuts stiching instrument of mode of a kind of employing of this utility model.
Fig. 2 is the pull back nail bin structural representation of straight cuts stiching instrument of mode of a kind of employing of this utility model.
Fig. 3 is the pull back nail bin cross-sectional schematic of straight cuts stiching instrument of mode of a kind of employing of this utility model.
Fig. 4 is the cutter structural representation that this utility model adopts the straight cuts stiching instrument of the mode of pulling back.
Fig. 5 is the nail bin front end axial section structural representation of this utility model.
Fig. 6 is the nail bin front end horizontal section structural representation of this utility model.
Fig. 7 is the plan structure sketch map of the nail bin front end of this utility model.
Fig. 8 is the mechanism structure sketch map of pulling back of this utility model.
Fig. 9 is the schematic top plan view of Fig. 8.
Figure 10 is Fig. 6 and cutter, the mechanism's integrated structure sketch map of pulling back of upspringing.
Figure 11 is the user mode sketch map that this utility model adopts the straight cuts stiching instrument of the mode of pulling back.
The specific embodiment
See also shown in Fig. 1-3; The pull back straight cuts stiching instrument of mode of a kind of employing of this utility model comprises train wheel bridge 1, lower plate 2, handle, is installed in nail bin 4 in the lower plate 2, is fixed on nail supporting base 5 in the train wheel bridge 1, is installed in the nail bin 4 and cutter 6 that can slide along the nail bin centre joint and the mechanism 7 that pulls back that is installed in nail bin 4 belows.
Wherein, handle can as shown in the figurely comprise upper handle 31, flexible handle 32, and in the flexible handle rear end SR 33 is set.
Please cooperate and consult shown in Figure 4ly, according to cutting 6 initial position, cutter 6 rear portions are cutter hub 61, and front portion is arc stator 62, and cutter hub 61 and arc stator 62 joints are fixed with axial rectangle locating piece 63.Wherein, cutter hub 61 is preferably two-sided 1/4 circular knife of putting the first edge on a knife or a pair of scissors as shown in the figure, cutter hub upper edge level, and the lower edge is a circular arc.Arc stator 62 is preferably semicircle gear piece as shown in the figure, and the rectangle locating piece can be provided with steady pin respectively for 63 4 jiaos, to increase frictional force.
Please cooperate consult shown in Figure 5; Nail bin 4 inside are provided with cutter sliding cavity 41 along the centre joint; It is long that the height of this sliding cavity 41 is slightly larger than the minor face of rectangle locating piece 63; The front end of sliding cavity 41 is a rectangle locating piece containing cavity 42, and the height of this containing cavity 42 is slightly larger than the long length of side of rectangle locating piece 63, and it is long that the width of containing cavity 42 is slightly larger than the minor face of rectangle locating piece 63.Also can limited step 43 be set, offset, from the top, the installation site of limiting rectangle locating piece 63 and whole cutter 6 simultaneously, the place ahead with arc stator 62 at containing cavity 42 front upper parts.Sliding cavity 41 tops also are provided with rectangle fixed block stopper slot 44 along the nail bin centre joint, the position, the left and right sides when being used for limiting cutter 6 slips.
Please cooperate and consult Fig. 6, shown in Figure 7; Also can be provided with band cutter tooth bar mount grooves 47 in the middle of nail bin 4 bottoms; And be with cutter tooth bar mount grooves 47 both sides to be provided with percussion sheet mount grooves 48, nail bin 4 rear ends also can be provided with protects cutter medicated cap 45, and is provided with oblique, equidistant antiskid groove or fin 46 at nail bin 4 upper surfaces; Frictional force when being used for increasing suture tissue prevents that tissue from skidding.
In addition, on rectangle locating piece 63, also can be fixed with projection 64, projection 64 upper limbs are higher than the upper edge of cutter sliding cavity, and nail bin front end inside vertically is provided with connecting rod 8, and coiling has spring 9 around the connecting rod, and spring 9 upper ends extend to projection 64 belows.
When above-mentioned nail bin groupware was installed: cutter 6 were pushed by nail bin 4 right half part bottom sides; Up to forming screens with limited step 43, rectangle locating piece stopper slot; This moment, cutter 6 were embedded in the nail bin 4; Its rectangle locating piece 63 back upper lateral parts are stuck on the right wall of locating piece containing cavity 42, and arc stator 62 front upper parts are stuck on the limited step 43, the position, the left and right sides of rectangle locating piece stopper slot restriction rectangle locating piece 63; The termination of spring 9 is from lower support projection 64 and cutter 6 integral body thereof, thereby cutter 6 are fixed on the front end of nail bin 4.
See also Fig. 8, shown in Figure 9, the mechanism 7 that pulls back comprise band cutter tooth bar 71 with about percussion sheet 72, its rear end is near handle and be provided with the button 73 of pulling back.The button 73 of pulling back can be selected one-sided push button, bilateral push button or bilateral knob as required for use.
Band cutter tooth bar 71 mainly is made up of two parts, and front end is cutter and rear end guiding fixedly, and two parts are welded as a whole.Wherein fixedly the part of cutter is a push broach baffle plate 74; The centre of push broach baffle plate 74 is provided with a vertical slot, and the initial position of cutter 6 is arranged on the front portion of nail bin 4, is installed in the rear side of push broach baffle plate 74; And cutting edge does not expose; Blade can stretch in the vertical slot, and push broach baffle plate 74 forms screens with rectangle locating piece 63 on the cutter 2, make upspring fixing after cutter 2 rotations and with nail bin 4 surfaces in vertical state.Form a U-lag between the targeting part of push broach baffle plate 74 and rear end, be provided with the dentalation 76 that matches with cutter semicircle gear piece in the U-lag.
The body construction of percussion sheet 72 is dull and stereotyped rectangular structure, and is preferable, and the dull and stereotyped rectangular head of percussion sheet 72 front ends is lozenges 75; Certain angle is arranged; And about the lozenges 75 of two percussion sheets certain distance is arranged on long axis direction, left lozenges is longer than forward half nail of right lozenges, the slab construction both sides of pulling the trigger sheet 72 rear ends are provided with the installation sheet of parallel rectangular configuration; With slab construction in vertical state; Thereby form a mounting groove, the percussion sheet 72 be structure as a whole on the whole, about the percussion push jack wedge-like portion connect as one in the bottom.
When pulling back mechanism 7 during installation; The afterbody that at first will pull the trigger sheet 72 pushes in along two vertical slots of button 73 front ends of pulling back; Make percussion sheet 72 be fixedly installed in the vertical slot of button 73 front ends of pulling back; To insert in two fixture blocks of button 73 front ends of pulling back with the afterbody of cutter tooth bar 71 again, wherein with cutter tooth bar 71 be positioned at percussion sheet 72 above.
Please cooperate consult shown in Figure 10; During use; The nail bin 4 that at first will have cutter 6 is installed on the nail bin seat of lower plate 2, during installation, with push broach baffle plate 74 location, insertion nail bin 4 head lower ends and fixing of band cutter tooth bar 71 front ends; After the installation, the tooth on tooth on the cutter 6 and the band cutter tooth bar 71 matches.When initial position, cutter 6 are stuck in the head of nail bin 4 under the effect of spring 9, limited step 43, rectangle locating piece stopper slot and locating piece containing cavity 42, and cutter 6 integral body are arranged in nail bin 1, do not expose.
Please cooperate and consult shown in Figure 11ly, during operation, earlier will be in advance place the position between nail bin 2 and the nail supporting base 5 from disconnected tissue; Involutory then apparatus is two parts up and down; The groove of lower plate 2 afterbodys cooperates insertion with alignment pin, hold the apparatus afterbody, closed flexible handle 32; The hook-shaped post insertion flexible handle afterbody of lower plate 2 bottoms cooperates with SR 33 and locks apparatus, spurs the button 73 of pulling back then.Under tension, percussion sheet 72 and 71 motions together of band cutter tooth bar, cutter 6 bottoms receive the pulling of band cutter tooth bar 71; Top receives stopping of locating piece containing cavity 42 back upper walls; Cutter hub 61 rotates up upsprings, and when cutter 6 ejection nail bins 4 inner chambers were in vertical position, the end face and the push broach baffle plate 74 of the rectangle locating piece 63 on the cutter 6 were inconsistent; Rectangle locating piece 63 is coupled with cutter sliding cavity 41 simultaneously; Cutter 6 are slided along sliding cavity 41, and the cutter hub 61 of cutter 6 remains vertical state in the motor process, till the cutting and stitching terminal point.When band cutter tooth bar 71 spurred cutter 6 completion cuttings, percussion sheet 72 drove to stitch to follow closely to accomplish and sews up.
After cutting was accomplished, cutter 6 moved to protecting in the cutter medicated cap 45 of nail bin rear end, and blade is isolated and protected, and presses SR, and apparatus is opened, and takes out apparatus.
The above; It only is the preferred embodiment of this utility model; Be not that this utility model is done any pro forma restriction, those skilled in the art utilize the technology contents of above-mentioned announcement to make a little simple modification, equivalent variations or modification, all drop in the protection domain of this utility model.
Claims (10)
1. the employing straight cuts stiching instrument of mode of pulling back; It is characterized in that comprising train wheel bridge, lower plate, handle, be installed in nail bin in the lower plate, be fixed on nail supporting base in the train wheel bridge, be installed in the nail bin and cutter that can slide along the nail bin centre joint and the mechanism that pulls back that is installed in the nail bin below, wherein:
Pull back mechanism comprise band cutter tooth bar with about pull the trigger sheet, its rear end is near handle and be provided with the button of pulling back, band cutter tooth bar front end is provided with the push broach baffle plate;
Cutter are installed in push broach baffle plate rear side.
2. the pull back straight cuts stiching instrument of mode of a kind of employing according to claim 1 is characterized in that:
Described cutter rear portion is a cutter hub, and the front portion is the arc stator, and cutter hub and arc stator joint are fixed with axial rectangle locating piece;
Described nail bin inside is provided with the cutter sliding cavity along the centre joint; It is long that the height of this sliding cavity is slightly larger than the minor face of rectangle locating piece; The front end of sliding cavity is a rectangle locating piece containing cavity; The height of this containing cavity is slightly larger than the long length of side of rectangle locating piece, and it is long that the width of containing cavity is slightly larger than the minor face of rectangle locating piece.
3. the pull back straight cuts stiching instrument of mode of a kind of employing according to claim 2 is characterized in that described containing cavity front upper part is provided with the limited step that offsets with the arc stator.
4. the pull back straight cuts stiching instrument of mode of a kind of employing according to claim 2; It is characterized in that being fixed with projection on the described rectangle locating piece; The projection upper limb is higher than the upper edge of cutter sliding cavity; Nail bin front end inside vertically is provided with connecting rod, and coiling has spring around the connecting rod, and the spring upper end extends to the projection below.
5. the pull back straight cuts stiching instrument of mode of a kind of employing according to claim 2 is characterized in that described arc stator is semicircle gear piece, band cutter tooth bar front end be provided with can with the dentalation of this semicircle gear piece engagement.
6. the pull back straight cuts stiching instrument of mode of a kind of employing according to claim 2 is characterized in that described cutter hub is two-sided 1/4 circular knife of putting the first edge on a knife or a pair of scissors, cutter hub upper edge level, and the lower edge is a circular arc.
7. the pull back straight cuts stiching instrument of mode of a kind of employing according to claim 2 is characterized in that described sliding cavity top is provided with rectangle fixed block stopper slot along the nail bin centre joint.
8. according to the pull back straight cuts stiching instrument of mode of each described a kind of employing among the claim 1-7, it is characterized in that described nail bin rear end is provided with to protect the cutter medicated cap.
9. according to the pull back straight cuts stiching instrument of mode of each described a kind of employing among the claim 1-7, it is characterized in that described nail bin upper surface is provided with antiskid groove or fin.
10. according to the pull back straight cuts stiching instrument of mode of each described a kind of employing among the claim 1-7; It is characterized in that described percussion sheet front end is wedge shape; And about percussion sheet front end phase difference of half seam nail length, about the wedge-like portion of percussion push jack connect as one in the bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120574787 CN202446161U (en) | 2011-12-31 | 2011-12-31 | Straight-line cutting stitching instrument using pulling back manner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120574787 CN202446161U (en) | 2011-12-31 | 2011-12-31 | Straight-line cutting stitching instrument using pulling back manner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202446161U true CN202446161U (en) | 2012-09-26 |
Family
ID=46862060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120574787 Withdrawn - After Issue CN202446161U (en) | 2011-12-31 | 2011-12-31 | Straight-line cutting stitching instrument using pulling back manner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202446161U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102429694A (en) * | 2011-12-31 | 2012-05-02 | 北京中法派尔特医疗设备有限公司 | Linear cutting stitching instrument adopting pulling-back way |
-
2011
- 2011-12-31 CN CN 201120574787 patent/CN202446161U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102429694A (en) * | 2011-12-31 | 2012-05-02 | 北京中法派尔特医疗设备有限公司 | Linear cutting stitching instrument adopting pulling-back way |
| CN102429694B (en) * | 2011-12-31 | 2013-10-02 | 北京中法派尔特医疗设备有限公司 | Linear cutting stitching instrument adopting pulling-back way |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120926 Effective date of abandoning: 20131002 |
|
| RGAV | Abandon patent right to avoid regrant |