CN102813537A - Circular purse-string forceps capable of automatically beating purse-strings - Google Patents
Circular purse-string forceps capable of automatically beating purse-strings Download PDFInfo
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- CN102813537A CN102813537A CN2012103456977A CN201210345697A CN102813537A CN 102813537 A CN102813537 A CN 102813537A CN 2012103456977 A CN2012103456977 A CN 2012103456977A CN 201210345697 A CN201210345697 A CN 201210345697A CN 102813537 A CN102813537 A CN 102813537A
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- suture needle
- caliper
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- purse
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Abstract
The invention relates to circular purse-string forceps capable of automatically beating purse-strings. The forceps comprise a forceps body, a suture needle assembly, a suture needle driving device and a safety device, wherein an annular suture needle chute is arranged in the head of the forceps body; the suture needle assembly is installed in the annular suture needle chute in a slideable manner; the safety device is installed at the tail end of the forceps body and comprises a safety knob, a safety shaft and a locking block; the safety shaft is fixedly connected with the safety knob; the locking block is fixed on the safety shaft; the suture needle driving device is installed in the forceps body in a rotatable manner; the head of the suture needle driving device drives the suture needle assembly to move around the annular suture needle chute; and a clamp slot corresponding to the locking block of the safety device is arranged at the tail of the suture needle driving device. The circular purse-string forceps can ensure a defined amount of tissues on the purse-strings, and can automatically, conveniently and reliably beat the purse-strings.
Description
Technical field
The present invention relates to medical instruments field, particularly relate to a kind of circular pocket pincers that can play pocket automatically.
Background technology
In the orthopaedic surgical operations operation, since inventing the first seam nail series products sixties in 20th century, medical anastomat has become requisite a kind of medical apparatus and instruments in the auxiliary edge of a knife sewing process.
Along with the development of medical science and the research and development of medical device product, increasing seam nail series products is applied to clinical.The scope of application of this series products has related to fields such as gastrointestinal surgery, Genneral Surgery, thoracic surgery, Urology Surgery, department of obstetrics and gynecology, becomes one of doctor's necessary tool.The application of this kind tool has the advantage that intraoperative hemorrhage is less, operating time is short for the patient, and replaces can reducing error, the infection that causes owing to manual by hand with apparatus, thereby makes patient's post-operative recovery faster.
The doctor often uses tube type anastomat to operate when doing the digestive tract end to end anastomosis.Before coincideing, must at one end carry out the nail supporting base that purse string suture is implanted tube type anastomat, so that firmly ligation after inserting center-pole could implement to organize anastomosis operation then to tissue.At present a lot of doctors are manual suture pockets, can't guarantee so whether the amount of pocket place tissue is suitable, if residual tissue too much can cause anastomat percussion failure; If very few, have the risk of fistula after then coincideing.Therefore, in use, the use pocket that the doctor is more and more many clamps sews up pocket, and the quality of this apparatus performance directly influences the operation process, plays important effect for surgical effect.
The actual at present pocket pincers that use mainly contain two types, and a kind of is the manual pocket pincers of linear type all-metal, and another kind is the automatic pocket pincers of straight line groove part nail formula.
For the manual pocket pincers of linear type, need pass the jaw that accompanies tissue with the suture needle that an afterbody has suture and carry out manual purse string suture.Clamp tissue with jaw earlier during operation, lock notch then, clamped and some tissue of tissue meeting nature is clamp-oned in the notch space; Penetrate top circular hole that pocket clamp in the suture needle of an afterbody band wire from an end of pocket pincers this moment; Extract from opposite side, pin turns around then, in the bottom circular hole of pocket pincers, passes again; At last in two the termination knottings of a side with purse wire; This pocket pincers length that need be equivalent to twice at least could be accomplished the operation (working place that the pin needs are very big) of operation, yet for the operative site that positions such as rectum resection or esophagus excision are limited to, uses this kind pocket to clamp to beat pocket and can't accomplish operation or have great operation risk; Owing to there is not good surgical field of view; Be again manual suture needle, be easy to hurt other adjacent histoorgans, have huge operation risk.
Another kind is the automatic pocket pincers of straight line groove part nail formula, clamps tissue with jaw earlier during operation, locks notch then, and clamped and some tissue of tissue meeting nature is clamp-oned in the notch space.The seam nail is pressed in tissue with purse wire simultaneously, and unclamp notch this moment, lifts apparatus, and purse wire can propose a segment length (the long stitching thread of 600mm can be stored in the built-in line storehouse of apparatus) with apparatus along the track that the seam nail is followed closely out and play pocket then.The operative site that this apparatus is limited to for positions such as rectum resection or esophagus excisions; Have very big shortcoming: at first purse wire can only lift along the organ-tissue cross section, and so just requiring to have suitable working place, otherwise be easy to oblique loading seam nail and tissue is broken away from; Cause beating the pocket failure; And concerning the position of limited location, suitable working place exactly can not be arranged, so the risk of performing an operation at this kind position is very big; Secondly, excessive because of the power of lifting, possibly cause the seam nail to fall in the human body, because of position limitation and seam nail are very little, be not easy to find the seam nail that drops finally possibly cause the seam nail to be stayed in the human body body, possibly bring the life threat to patient.
This shows that existing pocket pincers exist obvious defects and deficiency, how to found a kind of real one of the current important research and development problem that belongs to of purse-string suture device that can automatically, conveniently, reliably play pocket in the operation narrow positions.
Summary of the invention
The technical problem that the present invention will solve provides a kind of circular pocket pincers that can play pocket automatically; Make it limited to the position when undergoing surgery for positions such as rectum resection or esophagus excisions; Can play pocket automatically, conveniently, reliably, thereby overcome the deficiency of prior art.
For solving the problems of the technologies described above, a kind of circular pocket pincers that can play pocket automatically of the present invention comprise caliper, suture needle assembly, suture needle driving device and safety, wherein: be provided with annular suture needle chute in the caliper head; The suture needle assembly slidably is installed in the described annular suture needle chute; Safety are installed in the caliper tail end, comprise insurance knob, the insurance axle that is fixedly connected with the insurance knob and are fixed on the latch segment on the insurance axle; The suture needle driving device is rotating to be installed in the caliper, and its head drives the suture needle assembly and moves around annular suture needle chute, and is provided with the draw-in groove corresponding with the latch segment of safety at afterbody.
As further improvement of the present invention; The middle part of described suture needle driving device is the rotating intravital rotating shaft of pincers that is installed in; The rotating shaft tail end is fixed with drive knob, and front end is fixed with travelling gear, and travelling gear drives the suture needle assembly through swing arm gear and swing arm and moves.
Described draw-in groove is arranged on the afterbody of the rotating shaft of suture needle driving device.
The cross section of described rotating shaft afterbody is circular mostly, and described draw-in groove is the breach of this cross section.
Described latch segment is a cube structure.
Described insurance knob inboard also is fixed with alignment pin, and on caliper, is provided with the groove that cooperates qualification insurance knob scope with this alignment pin.
After adopting above-mentioned design; The present invention compared with prior art has following beneficial effect: the automatic pocket pincers of this circle are applicable to the narrow operative site that positions such as rectum resection or esophagus excision are limited to; Can guarantee that pocket place tissue is an amount of, automatically, conveniently, reliably play pocket.
Through accompanying drawing and embodiment, technical scheme of the present invention is done further detailed description below.
Description of drawings
Above-mentioned only is the general introduction of technical scheme of the present invention, understands the present invention in order can more to know, below in conjunction with the accompanying drawing and the specific embodiment the present invention is done further detailed description.
Fig. 1 is the structural representation that the present invention can make the circular pocket pincers of pocket automatically.
Fig. 2 is the decomposition texture sketch map that the present invention can make the circular pocket pincers of pocket automatically.
Fig. 3 is the decomposition texture sketch map of fixed caliper part of the present invention.
Fig. 4 is the decomposition texture sketch map of moving caliper part of the present invention.
Fig. 5 be jaw closed suture needle of the present invention insert needle guard structural representation.
Fig. 6 is the structural representation of suture needle assembly of the present invention.
Fig. 7 is the decomposition texture sketch map of suture needle driving device of the present invention.
Fig. 8 is the structural representation of safety locking state of the present invention.
Fig. 9 is the structural representation of safety released state of the present invention.
The specific embodiment
See also Fig. 1, shown in Figure 2, a kind of circular pocket pincers that can play pocket automatically of the present invention comprise caliper, suture needle assembly 3, suture needle driving device 4 and safety 5.Below for clear product structure of the present invention described, be front side, head with right side among Fig. 1, be that rear side, afterbody describe with the left side.
Be provided with annular suture needle chute in the caliper head; Suture needle assembly 3 slidably is installed in the described annular suture needle chute; Safety 5 are installed in the caliper tail end; Suture needle driving device 4 rotating being installed in the caliper, its head drive suture needle assembly 3 and move around annular suture needle chute, and are provided with draw-in groove at afterbody.
Wherein, Please cooperate and consult Fig. 8, shown in Figure 9; Safety 5 of the present invention comprise insurance knob 51, the insurance axle 52 that is fixedly connected with insurance knob 51 and are fixed on the latch segment 53 on the insurance axle 52, the draw-in groove of suture needle driving device 4 afterbodys and latch segment 53 corresponding settings.
In addition, also can be at insurance knob 51 inboard fixing alignment pins 54, with the groove fit on the fixed handle 11, the slewing area of restriction insurance knob 51 snaps in the draw-in groove latch segment 53 quickly and accurately.
Please cooperate consult shown in Figure 7, the middle part of suture needle driving device 4 be rotating be installed in pincers intravital rotating shaft 41, the afterbody of rotating shaft 41 is fixed with drive knob 42; Head is fixed with travelling gear 43; Travelling gear 43 is engaged with swing arm gear 44, and swing arm gear 44 is fixedly connected with suture needle assembly 3 through swing arm 45, and swing arm gear 44 leans on the boss axial location at two ends; Swing arm 45 1 ends link to each other with swing arm gear 44 through bolt, and the other end is connected with the suture needle assembly through bolt.When drive knob 42 rotated, twisting resistance was transmitted to swing arm 45 through rotating shaft 41, travelling gear 43, swing arm gear 44, and swing arm 45 drives suture needle and in annular encapsulation chute, moves.
The cooperation of swing arm gear 44 and travelling gear 43 can make the journal offset of the axis of rotating shaft 41 with respect to swing arm gear 44, thereby shears is cut off tissue the space is provided during for operation.In operation process, after pocket clamps inserting needle and the completion of band wire process, need cut off tissue and unclamp jaw, this moment, the doctor can take shears cut off tissue from the side and the front of caliper, therefore, the design of this journal offset ten minutes necessity.
Further, can be circular mostly with the Cross-section Design of rotating shaft 41 afterbodys of suture driving device, draw-in groove is the breach of this cross section, and the latch segment 53 employing cube structures of safety 5 can be stuck preferably with this breach.
When safety 5 were in the lock state, latch segment 53 compressed the draw-in groove of rotating shaft 41, makes can not rotate rotating shaft 41 through drive knob 42, thereby suture needle can't be moved, and played safety effect.
When using the pocket pincers, rotation insurance knob 51 makes the exact separation of latch segment 53 and rotating shaft 41, at this moment, the state that unlocks, rotating drive knob 42, rotating shaft 41 can rotate along with drive knob 42, thereby drives needle sports, plays the pocket operation.
In addition, caliper of the present invention can be made up of fixed caliper 1 and moving caliper 2.Please cooperate and consult shown in Figure 3ly, fixed caliper 1 comprises fixed handle 11 and fixing head, and fixing head one side is provided with the arc toothed edge.
Fixing head is mainly assembled through bolt by sheet 13 behind fixed caliper anter 12, the fixed caliper, lamina tecti 14, head base plate 15 and baffle head 16.Wherein, a side of sheet 13 and fixed caliper anter 12 is the arc toothed edge behind the fixed caliper, and the angle that dentalation is corresponding is not more than 180 °, forms annular suture needle chute behind the fixed caliper between sheet 13 and the fixed caliper anter 12.Lamina tecti 14 is fan-shaped, is installed in fixed caliper anter 12 front surfaces, and is corresponding with the part of non-dentalation.Head base plate 15 is a semicircle or mostly circular, is installed in the rear side of sheet 13 behind the fixed caliper, and is corresponding with the part of non-dentalation.Baffle head 16 is installed in a side of sheet 13 behind the fixed caliper, cooperates the rear space of sheet 13 non-tooth-like parts of anything behind the sealing fixed caliper with head base plate 15.
In addition; In the fixing head of fixed caliper 1 (for example behind the fixed caliper on the sheet 13); Be provided with wire casing 17 and thimble baffle plate 18 at an end place of dentalation; Wire casing 17 outsides are equipped with absorbable suture by wire casing baffle plate 19 sealing in the wire casing 17, wire casing baffle plate 19 is plugged on behind the fixed caliper on the sheet 13 through slot.
Please cooperate consult shown in Figure 4; Moving caliper 2 comprises handle portion 21, fork 22 and arc-shaped head 23; Wherein, Arc-shaped head 23 is corresponding with the toothed edge of the fixing head of fixed caliper 1, and be provided with can with the closed dentalation of fixing head, fork 22 is fixedly connected with the two ends of arc-shaped head 23.
Specifically, handle portion 21 outsides interference fit capable of using is with sleeve 24.The arc-shaped head 23 of moving caliper 2 also can assemble through bolt by forward and backward, is provided with arc suture needle chute between forward and backward.The fork hollow structure has enough spaces, so as when operation shears cut off tissue.
Preferable; Be equipped with corresponding arc convex and groove between sheet 13 and the head base plate 15 and between forward and backward of moving caliper 2 arc-shaped heads 23 behind fixed caliper anter 12 and the fixed caliper between the sheet 13, behind the fixed caliper; To guarantee the precision of link position, improve packaging efficiency.
The fixed handle 11 of fixed caliper 1 passes the fork 22 of moving caliper 2, and is rotatably connected through steady pin 25, also can be provided with jaw locking hook 26 at the fixed handle 11 of fixed caliper 1 and handgrip portion 21 correspondences of moving caliper 2.Jaw locking hook 26 can be L type barb as shown in Figure 4, and when pressing down the handle portion 21 of moving caliper 2, two L type barbs are hooked in together each other, and the arc-shaped head of the fixing head of fixed caliper 1 and moving caliper 2 is closed and locked.If unclamp moving caliper, must guarantee that suture needle gets back to initial position, on the handle portion 21 of moving caliper 2, apply certain side force then, L type barb is thrown off each other, and jaw is able to open.
Please cooperate consult shown in Figure 5; The arc-shaped head closure of the fixing head of fixed caliper 1 and moving caliper 2 is full circle shape; This circular diameter has complete annular suture needle chute in the head of the pocket pincers after the closure between 30-80mm, suture needle assembly 3 promptly is installed in the annular suture needle chute.
Please cooperate consult shown in Figure 6; Suture needle assembly 3 comprises the interior suture needle 32 and outer suture needle 33 that a needle stand slide block 31 and an end insert needle stand slide block 31 and lock through screw; Needle stand slide block 31 is a circular arc piece; The needle body of inside and outside suture needle is arc, and the needle body cross section is the circle of 0.6-3mm, and head is taper and is provided with barb.
Corresponding, please cooperate and consult Fig. 5, shown in Figure 6, annular suture needle chute is two thin and be parallel to each other inside and outside suture needle chutes in corresponding section with dentalation, then is the slide block chute of a broad in the corresponding section of non-dentalation.And also should ccontaining two sutures in the wire casing 17, the suture termination leans out thimble baffle plate 18, and is connected with interior needle guard 34, outer needle guard 35 respectively.Inside and outside needle guard inner hollow, suitable with the diameter of section of inside and outside needle body, there is chamfering at the edge, is inverted cone, and slotted head is so that syringe needle inserts smoothly.Also can be provided with changeover portion between connection syringe needle and the needle body, syringe needle forms tangible boss so that tangle the needle guard slotted head at the changeover portion place, after the syringe needle rotation puts in place, can clamp-on in the needle guard, hooks needle guard, and needle guard can be taken back.
The initial position of suture needle is positioned at an end of pocket clamp head part dentalation, and needle guard is positioned at the other end, and the needle guard afterbody is connected with suture and leans against on the thimble baffle plate 18, and the duct of sheet 13 is wrapped in the wire casing 17 suture behind the fixed caliper through being arranged on.Suture needle is passed the tissue that is clipped between fixed caliper 1 and the moving caliper 2 along annular suture needle chute, moves to the needle guard place, and syringe needle inserts needle guard, backward rotation suture needle afterwards, and the barb of suture needle is taken back needle guard, makes suture pass tissue.
During use, earlier jaw locking hook 26 is opened, needs are beaten the intestinal position of pocket and put into the jaw place, the handle portion 21 of closed moving caliper 2 blocks jaw locking hook 26, keeps the pocket icarceration to close locking state, makes intestinal tissue keep compressive state.
Afterwards, reverse rotation drive knob 42, needle guard is taken back in suture needle, through the closed part of jaw, makes the suture of needle guard afterbody pass tissue.Moved to by suture needle in the process of jaw another side at needle guard, needle guard and back-connected suture thereof pass the tissue of being stepped up, and two purse wires pass from the both sides of tissue respectively, because the profile of tooth effect of jaw makes purse wire pass tissue for one section one section.Behind rotation drive knob 42 about 1/2nd circumference, the seismaesthesia that hand has hook to block, at this moment suture needle assembly 3 is got back to initial position.
At last, open jaw locking hook 26, pull the pocket pincers, seam money is released; When enough times spent of the line of emitting, cut off the both sides suture, take out the pocket pincers; Both sides stretching suture, the adjustment position places the head of anastomat in the tissue; Tension both sides suture ties up to suture on the center-pole of circular anastomosis device head and manually fastens, and plays the pocket completion.
This circle pocket pincers automatically is applicable to the narrow operative site that positions such as rectum resection or esophagus excision are limited to, and also can be used for the operation at other spacious position of working place.
The above; It only is preferred embodiment of the present invention; Be not that the present invention 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 protection scope of the present invention.
Claims (6)
1. the circular pocket pincers that can play pocket automatically is characterized in that comprising caliper, suture needle assembly, suture needle driving device and safety, wherein:
Be provided with annular suture needle chute in the caliper head;
The suture needle assembly slidably is installed in the described annular suture needle chute;
Safety are installed in the caliper tail end, comprise insurance knob, the insurance axle that is fixedly connected with the insurance knob and are fixed on the latch segment on the insurance axle;
The suture needle driving device is rotating to be installed in the caliper, and its head drives the suture needle assembly and moves around annular suture needle chute, and is provided with the draw-in groove corresponding with the latch segment of safety at afterbody.
2. the circular pocket pincers that can play pocket automatically according to claim 1; The middle part that it is characterized in that described suture needle driving device is the rotating intravital rotating shaft of pincers that is installed in; The rotating shaft tail end is fixed with drive knob; Front end is fixed with travelling gear, and travelling gear drives the suture needle assembly through swing arm gear and swing arm and moves.
3. the circular pocket pincers that can play pocket automatically according to claim 2 is characterized in that described draw-in groove is arranged on the afterbody of the rotating shaft of suture needle driving device.
4. the circular pocket pincers that can play pocket automatically according to claim 3 is characterized in that the cross section of described rotating shaft afterbody is circular for mostly, and described draw-in groove is the breach of this cross section.
5. the circular pocket pincers that can play pocket automatically according to claim 4 is characterized in that described latch segment is a cube structure.
6. according to each the described circular pocket pincers that can play pocket automatically among the claim 1-5, it is characterized in that described insurance knob inboard also is fixed with alignment pin, and on caliper, be provided with the groove that cooperates qualification insurance knob scope with this alignment pin.
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CN201210345697.7A CN102813537B (en) | 2012-09-17 | 2012-09-17 | Circular purse-string forceps capable of automatically beating purse-strings |
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CN201210345697.7A CN102813537B (en) | 2012-09-17 | 2012-09-17 | Circular purse-string forceps capable of automatically beating purse-strings |
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CN102813537B CN102813537B (en) | 2014-12-24 |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103536323A (en) * | 2013-09-29 | 2014-01-29 | 北京中法派尔特医疗设备有限公司 | Automatic purse pliers |
WO2014040368A1 (en) * | 2012-09-17 | 2014-03-20 | 北京中法派尔特医疗设备有限公司 | Circular purse string clamp able to automatically sew up purse |
WO2014040369A1 (en) * | 2012-09-17 | 2014-03-20 | 北京中法派尔特医疗设备有限公司 | Circular purse string clamp able to automatically sew up purse |
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CN102068291A (en) * | 2010-12-16 | 2011-05-25 | 苏州天臣国际医疗科技有限公司 | Linear seam cutter |
CN102228385A (en) * | 2010-07-06 | 2011-11-02 | 北京中法派尔特医疗设备有限公司 | Circular purse string clamp |
CN202776430U (en) * | 2012-09-17 | 2013-03-13 | 北京中法派尔特医疗设备有限公司 | Round purse-string forceps capable of suturing purse-string |
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US5123909A (en) * | 1990-05-21 | 1992-06-23 | Leveen Harry H | Plaque cracker |
US5137198A (en) * | 1991-05-16 | 1992-08-11 | Ethicon, Inc. | Fast closure device for linear surgical stapling instrument |
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Publication number | Priority date | Publication date | Assignee | Title |
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WO2014040368A1 (en) * | 2012-09-17 | 2014-03-20 | 北京中法派尔特医疗设备有限公司 | Circular purse string clamp able to automatically sew up purse |
WO2014040369A1 (en) * | 2012-09-17 | 2014-03-20 | 北京中法派尔特医疗设备有限公司 | Circular purse string clamp able to automatically sew up purse |
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CN103536323B (en) * | 2013-09-29 | 2016-03-30 | 北京派尔特医疗科技股份有限公司 | Automatic purse-string forceps |
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