CN102813537B - 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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- CN102813537B CN102813537B CN201210345697.7A CN201210345697A CN102813537B CN 102813537 B CN102813537 B CN 102813537B CN 201210345697 A CN201210345697 A CN 201210345697A CN 102813537 B CN102813537 B CN 102813537B
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- suture needle
- purse
- caliper
- safety
- driving device
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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 purse string clamp automatically can playing pocket.
Background technology
In surgical operation, since 20th century invention sixties first staple series products, Medical stapler has become requisite a kind of medical apparatus and instruments in auxiliary edge of a knife sewing process.
Along with the development of medical science and the research and development of medical device product, increasing staple series products is applied to clinical.The scope of application of this series products has related to the fields such as gastrointestinal surgery, Genneral Surgery, thoracic surgery, Urology Surgery, department of obstetrics and gynecology, becomes one of requisite instrument of doctor.The application of such instrument, for patient, has the advantage that intraoperative hemorrhage is less, operating time is shorter, and with apparatus replace manual can reduce cause due to craft error, infection, thus make patient's post-operative recovery faster.
Doctor, when doing digestive tract end to end anastomosis, often uses tube type anastomat to operate.At one end must carry out purse string suture to implant the nail supporting base of tube type anastomat to tissue before coincideing, so that can firmly ligation after inserting center-pole, then could implement engaging tissue and perform the operation.A lot of doctor is manual suture pocket at present, cannot ensure that whether the amount organized at pocket place is suitable like this, if residual tissue too much can cause anastomat to pull the trigger unsuccessfully; If very few, then have the risk of fistula after coincideing.Therefore, in use, the use purse-string forceps that doctor is more and more many sews up pocket, and the quality of this apparatus performance directly affects procedure, plays very important effect for surgical effect.
The purse-string forceps that current reality uses mainly contains two types, and one is the manual purse-string forceps of linear type all-metal, and another kind is the automatic purse-string forceps of linear type staple formula.
For the manual purse-string forceps of linear type, need have the suture needle of suture to carry out manual purse string suture through the organized jaw of folder with a foot section brought.First tissue jaw is clamped during operation, then notch is locked, tissue can naturally be clamped and some tissue is clamp-oned in notch space, now penetrate in the top circular hole of purse-string forceps from one end of purse-string forceps with the suture needle of an afterbody band wire, extract from opposite side, then pin turns around, pass in the bottom circular hole of purse-string forceps again, finally in side, are tied a knot in two of purse wire terminations, this at least needs the purse-string forceps length being equivalent to twice just can complete the operation (working place that pin needs are very large) of operation, but for the operative site that the positions such as rectum resection or esophagus excision are limited to, use this kind of purse-string forceps cannot complete operation to play pocket or there is great operation risk, owing to there is no good surgical field of view, it is again manual suture needle, be easy to hurt other adjacent histoorgans, there is huge operation risk.
Another kind is the automatic purse-string forceps of linear type staple formula, first tissue jaw is clamped, then lock notch during operation, and tissue can naturally be clamped and some tissue is clamp-oned in notch space.Simultaneously staple by purse wire pressure organizationally, now unclamps notch, lift apparatus, and the track that purse wire can be followed closely out along staple institute proposes a segment length (the built-in line storehouse of apparatus can store the stitching thread that 600mm grows) with apparatus and then plays pocket.The operative site that this apparatus is limited to for positions such as rectum resection or esophagus excisions, there is very large shortcoming: first purse wire can only lift along organ-tissue cross section, so just require there is suitable working place, otherwise being easy to oblique loading makes staple depart from tissue, cause playing pocket failure, and concerning the position of limited location, suitable working place exactly can not be had, so dangerous of performing an operation at this kind of position; Secondly, because lift power is excessive, staple may be caused to fall in human body, because of position limitation and staple is very little, be not easy the staple finding to drop, staple finally may be caused to stay in body, life threat may be brought to patient.
As can be seen here, there is obvious defect and deficiency in existing purse-string forceps, how to found a kind of can in operation narrow positions automatically, one of convenient, the current important research and development problem of the real genus of purse-string suture device of reliably playing pocket.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of circular purse string clamp automatically can playing pocket, when making it perform the operation by localized sites for positions such as rectum resection or esophagus excisions, can automatically, conveniently, reliably carry out playing pocket, thus overcome the deficiencies in the prior art.
For solving the problems of the technologies described above, a kind of circular purse string clamp automatically can playing pocket of the present invention, comprises caliper, suture needle assembly, suture needle driving device and safety, wherein: be provided with annular suture needle chute in caliper head; Suture needle assembly is slidably arranged in described annular suture needle chute; Safety are arranged on caliper tail end, comprise insurance knob, the safety axis be fixedly connected with insurance knob and the latch segment be fixed on safety axis; Suture needle driving device is rotating to be arranged in caliper, and its head drives suture needle assembly to move around annular suture needle chute, and is provided with the draw-in groove corresponding with the latch segment of safety at afterbody.
As a further improvement on the present invention, the middle part of described suture needle driving device is the rotating rotating shaft be arranged in caliper, rotating shaft tail end is fixed with drive knob, and front end is fixed with travelling gear, and travelling gear drives suture needle assembly to move by swing arm gear and swing arm.
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 mostly circular, and described draw-in groove is the breach of this cross section.
Described latch segment is cube structure.
Also be fixed with alignment pin inside described insurance knob, and be provided with on caliper and limit with this detent fit the groove insuring knob scope.
After adopting above-mentioned design, the present invention compared with prior art has following beneficial effect: the automatic purse-string forceps of this circle is applicable to the narrow surgical position of being limited to the position such as rectum resection or esophagus excision, can ensure that pocket place tissue is appropriate, automatically, conveniently, reliably carry out playing pocket.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Accompanying drawing explanation
Above-mentioned is only the general introduction of technical solution of the present invention, and in order to better understand the present invention, below in conjunction with accompanying drawing and detailed description of the invention, the present invention is described in further detail.
Fig. 1 is the structural representation that the present invention can beat the circular purse string clamp of pocket automatically.
Fig. 2 is the decomposition texture schematic diagram that the present invention can beat the circular purse string clamp of pocket automatically.
Fig. 3 is the decomposition texture schematic diagram of fixed caliper part of the present invention.
Fig. 4 is the decomposition texture schematic diagram 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 schematic diagram 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.
Detailed description of the invention
Refer to shown in Fig. 1, Fig. 2, a kind of circular purse string clamp automatically can playing pocket of the present invention, comprises caliper, suture needle assembly 3, suture needle driving device 4 and safety 5.Below in order to clear description product structure of the present invention, with right side in Fig. 1 for front side, head, take left side as rear side, afterbody is described.
Annular suture needle chute is provided with in caliper head, suture needle assembly 3 is slidably arranged in described annular suture needle chute, safety 5 are arranged on caliper tail end, suture needle driving device 4 is rotating to be arranged in caliper, its head drives suture needle assembly 3 to move around annular suture needle chute, and is provided with draw-in groove at afterbody.
Wherein, shown in Fig. 8, Fig. 9, safety 5 of the present invention comprise insurance knob 51, the safety axis 52 be fixedly connected with insurance knob 51 and the latch segment 53 be fixed on safety axis 52, and the draw-in groove of suture needle driving device 4 afterbody is corresponding with latch segment 53 to be arranged.
In addition, also can fix an alignment pin 54 inside insurance knob 51, with the groove fit on fixed handle 11, the slewing area of restriction insurance knob 51, makes latch segment 53 snap in quickly and accurately in draw-in groove.
Shown in Fig. 7, the middle part of suture needle driving device 4 is the rotating rotating shaft 41 be arranged in caliper, 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 by swing arm 45, and swing arm gear 44 is by the boss axial location at two ends, swing arm 45 one end is connected with swing arm gear 44 by bolt, and the other end is connected with suture needle assembly by bolt.When drive knob 42 rotates, twisting resistance is transmitted to swing arm 45 by rotating shaft 41, travelling gear 43, swing arm gear 44, and swing arm 45 drives suture needle to move in annular encapsulation chute.
The cooperation of swing arm gear 44 and travelling gear 43 can make the axis of rotating shaft 41 relative to the journal offset of swing arm gear 44, thus cuts off tissue and provide space for shears during operation.In operation process, after line process completes when purse-string forceps inserting needle and band, need to cut off tissue and unclamp jaw, now doctor can take shears to cut off tissue from the side of caliper and front, and therefore, the design of this journal offset is very necessary.
Furthermore, can be mostly circular by the Cross-section Design of rotating shaft 41 afterbody of suture driving device, draw-in groove be the breach of this cross section, and the latch segment 53 of safety 5 adopts cube structure can be stuck preferably with this breach.
When safety 5 are in the lock state, latch segment 53 compresses the draw-in groove of rotating shaft 41, makes can not rotate rotating shaft 41 by drive knob 42, thus suture needle cannot be moved, and plays safety effect.
When using purse-string forceps, rotate the exact separation that insurance knob 51 makes latch segment 53 and rotating shaft 41, now, unlock state, rotating drive knob 42, and rotating shaft 41 can rotate along with drive knob 42, thus drive needle sports, carries out playing pocket operation.
In addition, caliper of the present invention can be made up of fixed caliper 1 and moving caliper 2.Shown in Fig. 3, fixed caliper 1 comprises fixed handle 11 and fixing head, and fixing head side is provided with arc toothed edge.
Fixing head is assembled by bolt primarily of fixed caliper anter 12, fixed caliper rear panel 13, lamina tecti 14, head base plate 15 and baffle head 16.Wherein, the side of fixed caliper rear panel 13 and fixed caliper anter 12 is arc toothed edge, and the angle that dentalation is corresponding is not more than 180 °, forms annular suture needle chute between fixed caliper rear panel 13 and fixed caliper anter 12.Lamina tecti 14 is fan-shaped, is arranged on fixed caliper anter 12 front surface, corresponding with the part of non-dentalation.Head base plate 15 is semicircle or mostly circular, is arranged on the rear side of fixed caliper rear panel 13, corresponding with the part of non-dentalation.Baffle head 16 is arranged on the side of fixed caliper rear panel 13, coordinates with head base plate 15, closes the rear space of the non-tooth-like part of anything of fixed caliper rear panel 13.
In addition, in the fixing head of fixed caliper 1 (such as in fixed caliper rear panel 13), wire casing 17 and thimble baffle plate 18 is provided with at one end place of dentalation, closed by wire casing baffle plate 19 outside wire casing 17, be equipped with absorbable suture in wire casing 17, wire casing baffle plate 19 is plugged in fixed caliper rear panel 13 by slot.
Shown in Fig. 4, moving caliper 2 comprises handle portion 21, fork-shaped portion 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 being provided with the dentalation that can close with fixing head, fork-shaped portion 22 is fixedly connected with the two ends of arc-shaped head 23.
Specifically, interference fit cover can be utilized outside handle portion 21 to have sleeve 24.The arc-shaped head 23 of moving caliper 2 also can be assembled by bolt by forward and backward, is provided with Curved seaming needle chute between forward and backward.Fork-shaped portion hollow structure has enough spaces, so that tissue cut off by shears when performing the operation.
Preferably, corresponding arc convex and groove is equipped with between fixed caliper anter 12 with fixed caliper rear panel 13, between fixed caliper rear panel 13 with head base plate 15 and between forward and backward of moving caliper 2 arc-shaped head 23, to ensure the precision of link position, improve packaging efficiency.
The fixed handle 11 of fixed caliper 1 passes the fork-shaped portion 22 of moving caliper 2, and is rotatably connected by steady pin 25, also at the hands of the fixed handle 11 of fixed caliper 1 and moving caliper 2, portion 21 correspondence can be provided with jaw locking hook 26.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 mutually, the fixing head of fixed caliper 1 and the arc-shaped head of moving caliper 2 closed and locked.If unclamp moving caliper, must ensure that initial position is got back in suture needle, then on the handle portion 21 of moving caliper 2, apply certain side force, L-type barb is thrown off mutually, and jaw is opened.
Shown in Fig. 5, the fixing head of fixed caliper 1 and the arc-shaped head of moving caliper 2 close in full circle shape, the diameter of this circle is between 30-80mm, and have complete annular suture needle chute in the head of the purse-string forceps after closed, namely suture needle assembly 3 is arranged in annular suture needle chute.
Shown in Fig. 6, suture needle assembly 3 is comprised needle stand slide block 31 and one end and inserts needle stand slide block 31 and suture needle 32 and outer suture needle 33 in being locked by screw, needle stand slide block 31 is a circular arc block, the needle body of inside and outside suture needle is arc, needle body cross section is the circle of 0.6-3mm, and head is taper and is provided with barb.
Corresponding, shown in Fig. 5, Fig. 6, annular suture needle chute is two comparatively thin and inside and outside suture needle chutes be parallel to each other in section corresponding to dentalation, is then a wider slide block chute in non-dentalation correspondence section.And in wire casing 17, also answer accommodating two sutures, 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 edge, is inverted cone, and slotted head, so that syringe needle inserts smoothly.Also can be provided with changeover portion between connecting needle and needle body, form obvious boss to tangle needle guard slotted head at changeover portion place syringe needle, after syringe needle is rotated in place, can clamp-ons in needle guard, hook needle guard, needle guard is brought back.
The initial position of suture needle is positioned at one end of purse-string forceps head dentalation, and needle guard is positioned at the other end, and needle guard afterbody is connected with suture and leans against on thimble baffle plate 18, and suture is wrapped in wire casing 17 by the duct being arranged on fixed caliper rear panel 13.Suture needle annularly suture needle chute, through the tissue be clipped in fixed caliper 1 and moving caliper 2, moves to needle guard place, and syringe needle inserts needle guard, and rotate backward suture needle afterwards, needle guard taken back by the barb of suture needle, makes suture pass tissue.
During use, first jaw is locked hook 26 and open, will the intestinal position playing pocket be needed to put into jaw place, the handle portion 21 of closed moving caliper 2, make jaw lock hook 26 and block, keep the closed and locked state of purse-string forceps, make intestinal tissue keep compressive state.
Stir insurance knob 51, open insurance, drive knob 42 can be rotated.When drive knob 42 rotate about 1/2nd circumference time, twisting resistance is delivered to needle stand slide block 31 by rigidly connected suture needle driving device 4, thus the suture needle 32,33 promoted on needle stand slide block 31 is moved in annular suture needle chute, the tissue in jaw gap is pierced through in suture needle, when needle point rotates to the needle guard place of the other end of chute, syringe needle is inserted needle guard and is blocked by barb, simultaneously syringe needle can promote needle guard and leans against on thimble baffle plate 18, drive knob 42 cannot rotate further, to ensure that the connection of syringe needle and needle guard puts in place.
Afterwards, reversely rotate drive knob 42, needle guard is taken back by suture needle, through the part that jaw is closed, makes the suture of needle guard afterbody through tissue.Moved in the process of jaw another side at needle guard by suture needle, needle guard and back-connected suture thereof pass by the tissue of stepping up, and two purse wires pass from the both sides of tissue respectively, and the profile of tooth effect due to jaw makes purse wire one section a section through tissue.When after rotary actuation knob 42 about 1/2nd circumference, hand has the seismaesthesia linked up with and block, and at this moment initial position got back to by suture needle assembly 3.
Finally, open jaw locking hook 26, pull purse-string forceps, seam money is released, when line enough used times of releasing, cut off two side seam line, take out purse-string forceps, two side stretching sutures, adjustment position, is placed in tissue by the head of anastomat, strains two side seam line, center-pole suture being tied up to circular staplers head is manually fastened, plays pocket and complete.
The automatic purse-string forceps of this circle is applicable to the narrow surgical position of being limited to the position such as rectum resection or esophagus excision, also can be used for the operation at other position of working place spaciousness.
The above; it is only preferred embodiment of the present invention; not do any pro forma restriction to the present invention, 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 (5)
1. automatically can beat a circular purse string clamp for pocket, it is characterized in that comprising caliper, suture needle assembly, suture needle driving device and safety, wherein:
Annular suture needle chute is provided with in caliper head;
Suture needle assembly is slidably arranged in described annular suture needle chute;
Safety are arranged on caliper tail end, comprise insurance knob, the safety axis be fixedly connected with insurance knob and the latch segment be fixed on safety axis;
Suture needle driving device is rotating to be arranged in caliper, and its head drives suture needle assembly to move around annular suture needle chute, and is provided with the draw-in groove corresponding with the latch segment of safety at afterbody;
The middle part of described suture needle driving device is the rotating rotating shaft be arranged in caliper, and rotating shaft tail end is fixed with drive knob, and front end is fixed with travelling gear, and travelling gear drives suture needle assembly to move by swing arm gear and swing arm.
2. the circular purse string clamp automatically can playing pocket according to claim 1, is characterized in that described draw-in groove is arranged on the afterbody of the rotating shaft of suture needle driving device.
3. the circular purse string clamp automatically can playing pocket according to claim 2, it is characterized in that the cross section of described rotating shaft afterbody is for mostly circular, described draw-in groove is the breach of this cross section.
4. the circular purse string clamp automatically can playing pocket according to claim 3, is characterized in that described latch segment is cube structure.
5. the circular purse string clamp automatically can playing pocket according to any one of claim 1-4, is characterized in that also being fixed with alignment pin inside described insurance knob, and is provided with on caliper and limits with this detent fit the groove insuring knob scope.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210345697.7A CN102813537B (en) | 2012-09-17 | 2012-09-17 | Circular purse-string forceps capable of automatically beating purse-strings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210345697.7A CN102813537B (en) | 2012-09-17 | 2012-09-17 | Circular purse-string forceps capable of automatically beating purse-strings |
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| Publication Number | Publication Date |
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| CN102813537A CN102813537A (en) | 2012-12-12 |
| CN102813537B true CN102813537B (en) | 2014-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210345697.7A Active CN102813537B (en) | 2012-09-17 | 2012-09-17 | Circular purse-string forceps capable of automatically beating purse-strings |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102813538B (en) * | 2012-09-17 | 2014-12-03 | 北京中法派尔特医疗设备有限公司 | Circular purse-string forceps capable of automatically beating purse-strings |
| CN102824200B (en) * | 2012-09-17 | 2014-12-24 | 北京中法派尔特医疗设备有限公司 | Circular purse-string forceps capable of automatically sewing in purse way |
| 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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|---|---|---|---|---|
| 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 |
| CN1810215A (en) * | 2005-01-26 | 2006-08-02 | 苏州天臣国际医疗科技有限公司 | Surgical binding instrument |
| 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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2012
- 2012-09-17 CN CN201210345697.7A patent/CN102813537B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN1810215A (en) * | 2005-01-26 | 2006-08-02 | 苏州天臣国际医疗科技有限公司 | Surgical binding instrument |
| 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 |
| 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 |
| 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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| CN102813537A (en) | 2012-12-12 |
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