CN102824202B - Circular purse-string forceps capable of automatically sewing in purse way - Google Patents
Circular purse-string forceps capable of automatically sewing in purse way Download PDFInfo
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- CN102824202B CN102824202B CN201210345596.XA CN201210345596A CN102824202B CN 102824202 B CN102824202 B CN 102824202B CN 201210345596 A CN201210345596 A CN 201210345596A CN 102824202 B CN102824202 B CN 102824202B
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Abstract
The invention relates to a pair of circular purse-string forceps capable of automatically sewing in a purse way, which comprises a fixed forceps body, a movable forceps body, a suture needle component and a suture needle drive device, wherein the fixed forceps body comprises a fixed handle and a fixed head part; an arc-shaped tooth-shaped edge is arranged at one side of the fixed head part; the movable forceps body comprises a handle part, a fork-shaped part and an arc-shaped head part; the arc-shaped head part is provided with a tooth-shaped structure capable of being closed with the fixed head part; the fixed handle of the fixed forceps body passes through the fork-shaped part of the movable forceps body and is rotationally connected with the fork-shaped part of the movable forceps body through a fixed pin; an annular suture needle sliding groove is arranged in a purse-string forceps head part formed by closing the fixed head part of the fixed forceps body and the arc-shaped head part of the movable forceps body; the suture needle component is installed in the annular suture needle sliding groove; and the suture needle drive device passes through the fixed handle of the fixed forceps body along the axial direction, and the head part of the suture needle drive device drives the suture needle component to move around the annular suture needle sliding groove. The circular purse-string forceps have the beneficial effects that a proper amount of tissues at the purse can be ensured, and the sewing in a purse way can be automatically, conveniently and reliably ensured.
Description
Technical field
The present invention relates to medical instruments field, particularly relate to a kind of circular purse string clamp that can automatically play 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 advantages of that intraoperative hemorrhage is less, operating time is shorter, and replaces manual can minimizing due to error, infection that craft causes with apparatus, thereby makes patient's post-operative recovery faster.
Doctor, when doing digestive tract end to end anastomosis, often operates with tube type anastomat.Before coincideing, must at one end to tissue, carry out the nail supporting base that purse string suture is implanted tube type anastomat, so that then firmly ligation after inserting center-pole could implement to organize anastomosis operation.At present a lot of doctors are manual suture pockets, cannot guarantee that so whether the amount of pocket place tissue is suitable, if residual tissue too much can cause anastomat to pull the trigger unsuccessfully; If very few, after coincideing, have the risk of fistula.Therefore, in use, what doctor was more and more many sews up pocket with purse-string forceps, and the quality of this apparatus performance directly affects operation process, for surgical effect, plays very important effect.
The actual purse-string forceps using mainly contains two types at present, and a kind of 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 to there is the suture needle of suture to carry out manual purse string suture through the organized jaw of folder with a foot section brought.During operation, first tissue is clamped with jaw, then lock notch, tissue naturally clamped and some tissue is clamp-oned in notch space, now from one end of purse-string forceps, with the suture needle of an afterbody band wire, penetrate in the top circular hole of purse-string forceps, from opposite side, extract, then pin turns around, in the bottom circular hole of purse-string forceps, pass again, finally in a side, tied a knot in two terminations of purse wire, this purse-string forceps length that at least needs to be equivalent to twice just can complete the operation (working place that pin needs are very large) of operation, yet the operative site being limited to for positions such as rectum resection or esophagus excisions, with this kind of purse-string forceps, playing pocket cannot complete operation or have 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, during operation, first tissue is clamped with jaw, then locks notch, and tissue naturally clamped and some tissue is clamp-oned in notch space.Staple is pressed purse wire organizationally simultaneously, now unclamps notch, lifts apparatus, and the track that purse wire can be followed closely out along staple proposes a segment length (the long stitching thread of 600mm can be stored in the built-in line storehouse of apparatus) 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 requiring to have suitable working place, otherwise being easy to oblique loading departs from staple and tissue, cause beating pocket failure, and concerning the position of limited location, exactly can not have suitable working place, so the risk of performing an operation at this kind of position is very big; Secondly, excessive because of lifting power, may cause staple to fall in human body, because of position limitation and staple very little, be not easy to find the staple that drops finally may cause staple to be stayed in body, may bring life threat 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 operation narrow positions automatically, real one of the current important research and development problem that belongs to of purse-string suture device convenient, that reliably play 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 that can automatically play pocket, make it for positions such as rectum resection or esophagus excisions, be limited to position while performing the operation, can play automatically, conveniently, reliably pocket, thereby overcome the deficiencies in the prior art.
For solving the problems of the technologies described above, a kind of circular purse string clamp that can automatically play pocket of the present invention, comprise fixed caliper, moving caliper, suture needle assembly and suture needle driving device, wherein: fixed caliper comprises fixed handle and fixing head, fixing head one side is provided with arc toothed edge; Moving caliper comprises handle portion, fork-shaped portion and arc-shaped head, arc-shaped head be provided with can with the dentalation of fixing head closure; The fixed handle of fixed caliper passes the fork-shaped portion of moving caliper, and is rotatably connected by steady pin, in the closed purse-string forceps head forming of the fixing head of fixed caliper and the arc-shaped head of moving caliper, is provided with annular suture needle chute; Suture needle assembly is arranged in described annular suture needle chute; Suture needle driving device is vertically through the fixed handle of fixed caliper, and the head of suture needle driving device drives suture needle assembly to move around annular suture needle chute.
As a further improvement on the present invention, the afterbody of described suture needle driving device is fixed with drive knob, and head is fixed with travelling gear, and is engaged with swing arm gear in the fork-shaped portion corresponding position with moving caliper, and swing arm gear is connected with suture needle assembly by swing arm.
The inside and outside Curved seaming needle that described suture needle assembly comprises slide block and is fixedly connected with slide block, described annular suture needle chute is inside and outside suture needle chute in section corresponding to dentalation, in other section, is slide block chute.
In the fixing head of described fixed caliper, at the place, one end of dentalation, be provided with wire casing and thimble baffle plate, be equipped with two absorbable sutures in wire casing, suture is connected with inside and outside needle guard by the through hole in fixing head.
The head of described inside and outside suture needle is taper and is provided with barb.
Each forms the fixing head of described fixed caliper and the arc-shaped head of moving caliper by forward and backward two, and annular suture needle chute is arranged between forward and backward two.
The handgrip portion correspondence of the fixed handle of described fixed caliper and moving caliper is provided with jaw locking hook.
Described fixed handle tail end is also provided with safety, these safety comprise insurance knob, with insure the safety axis that knob is fixedly connected with and be fixed on the latch segment on safety axis, the afterbody of described suture needle driving device is provided with the draw-in groove corresponding with latch segment.
Adopt after 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 operative site that the positions such as rectum resection or esophagus excision are limited to, can guarantee that pocket place tissue is appropriate, automatically, conveniently, reliably play 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 the specific embodiment, 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.
The specific embodiment
Refer to shown in Fig. 1, Fig. 2, a kind of circular purse string clamp that can automatically play pocket of the present invention, comprises fixed caliper 1, moving caliper 2, suture needle assembly 3 and suture needle driving device 4.For clear product structure of the present invention described below, take in Fig. 1 right side as front side, head, take left side to describe as rear side, afterbody.
Wherein, shown in Fig. 3, fixed caliper 1 comprises fixed handle 11 and fixing head, and fixing head one side is provided with arc toothed edge.
Specifically, fixing head is mainly assembled by bolt by fixed caliper anter 12, fixed caliper rear panel 13, lamina tecti 14, head base plate 15 and baffle head 16.Wherein, a 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 surfaces, 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 a side of fixed caliper rear panel 13, coordinates the rear space of sealing fixed caliper rear panel 13 non-tooth-like parts of anything with head base plate 15.
In addition, in the fixing head of fixed caliper 1 (for example, in fixed caliper rear panel 13), place, one end at dentalation is provided with wire casing 17 and thimble baffle plate 18, wire casing 17 outsides are by 19 sealings of wire casing baffle plate, in wire casing 17, be equipped with absorbable suture, 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 be provided with can with the dentalation of fixing head closure, fork-shaped portion 22 is fixedly connected with the two ends of arc-shaped head 23.
Specifically, handle portion 21 outsides can utilize interference fit cover to have sleeve 24.The arc-shaped head 23 of moving caliper 2 also can assemble 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 as when operation shears cut off tissue.
Preferably, between fixed caliper anter 12 and fixed caliper rear panel 13, between fixed caliper rear panel 13 and head base plate 15 and between forward and backward of moving caliper 2 arc-shaped heads 23, be equipped with corresponding arc convex and groove, to guarantee 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 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.The jaw locking hook 26 L-type barbs that can be as shown in Figure 4, while pressing down the handle portion 21 of moving caliper 2, two L-type barbs are hooked in together mutually, 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, 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 arc-shaped head closure of the fixing head of fixed caliper 1 and moving caliper 2 is full circle shape, this circular diameter, between 30-80mm, has complete annular suture needle chute in the head of the purse-string forceps after closure, suture needle assembly 3 is arranged in annular suture needle chute.
Shown in Fig. 6, suture needle assembly 3 comprises interior suture needle 32 and the outer suture needle 33 that needle stand slide block 31 and one end are inserted needle stand slide block 31 and locked by screw, needle stand slide block 31 is a circular arc piece, 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 thin and be parallel to each other inside and outside suture needle chutes in section corresponding to dentalation, in the corresponding section of non-dentalation, is a wider slide block chute.And in wire casing 17, also answer accommodating two sutures, suture is connected with interior needle guard 34, outer needle guard 35 respectively by the through hole in fixing head.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.Between connecting needle and needle body, also can be provided with changeover portion, at changeover portion place syringe needle, form obvious boss to tangle needle guard slotted head, after syringe needle is rotated in place, can clamp-on in needle guard, hook needle guard, needle guard can be 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 being arranged on the duct of fixed caliper rear panel 13.Suture needle through being clipped in the tissue between fixed caliper 1 and moving caliper 2, moves to needle guard place along annular suture needle chute, and syringe needle inserts needle guard, rotates backward afterwards suture needle, and the barb of suture needle is taken back needle guard, makes suture pass tissue.
Suture needle driving device 4 is vertically through the fixed handle 11 of fixed caliper 1, and the head of suture needle driving device 4 drives suture needle assembly 3 to move around annular suture needle chute.
Specifically, shown in Fig. 7, the middle part of suture needle driving device 4 is the rotating rotating shaft 41 being arranged in fixed handle 11, the afterbody of rotating shaft 41 is fixed with drive knob 42, head is fixed with travelling gear 43, and be engaged with swing arm gear 44 in fork-shaped portion 22 corresponding positions with moving caliper 2, swing arm gear 44 is fixedly connected with the needle stand slide block 31 of suture needle assembly 3 by swing arm 45, swing arm gear 44 is by the boss axial location at two ends, swing arm 45 one end are connected with swing arm gear 44 by bolt, and the other end is connected with needle stand slide block 31 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 needle stand slide block 31 and 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 with respect to the journal offset of swing arm gear 44, thereby the distance between fixed caliper 1 and moving caliper 2 is strengthened, the arc design of moving caliper 2 and departing from of Gear axis, during for operation, shears is cut off tissue provides space.In operation process, when purse-string forceps inserting needle and after being with line process to complete, need to cut off tissue and unclamp jaw, now doctor can take shears cut off tissue from side and the front of moving caliper 2, and therefore, the design of this journal offset is very necessary.
In addition, shown in Fig. 8, Fig. 9, the present invention also can be at the tail end installation insurance device 5 of fixed handle 1, for guaranteeing before each parts percussion in original state.These safety comprise insurance knob 51, with insure the safety axis 52 that knob 51 is fixedly connected with and be fixed on the latch segment 53 on safety axis 52, the afterbody correspondence of described suture needle driving device 4 rotating shafts 41 is provided with the draw-in groove corresponding with latch segment 53.In addition, also can fix an alignment pin 54 in insurance knob 51 inner sides, with the groove fit on fixed handle 11, can make latch segment 53 snap in draw-in groove quickly and accurately.
When safety 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, thereby suture needle cannot be moved, and plays safety effect.
When using purse-string forceps, rotation insurance knob 51 makes the exact separation of latch segment 53 and rotating shaft 41, now, the state that unlocks, rotating drive knob 42, rotating shaft 41 can rotate along with drive knob 42, thereby drives needle sports, plays pocket operation.
During use, first jaw locking hook 26 is opened, need to be beaten the intestinal position of pocket and put into jaw place, the handle portion 21 of closed moving caliper 2, blocks jaw locking hook 26, keeps the closed and locked state of purse-string forceps, makes intestinal tissue keep compressive state.
Stir insurance knob 51, open insurance, drive knob 42 can be rotated.When drive knob 42 rotation is approximately during 1/2nd circumference, twisting resistance is delivered to needle stand slide block 31 by rigidly connected suture needle driving device 4, thereby the suture needle 32,33 promoting 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 inserts needle guard and blocks by barb, while syringe needle can promote needle guard and lean against on thimble baffle plate 18, drive knob 42 cannot further rotate, to guarantee that syringe needle and being connected of needle guard put in place.
Afterwards, reverse rotation drive knob 42, needle guard is taken back in suture needle, through the part of jaw closure, makes the suture of needle guard afterbody through tissue.At needle guard, by suture needle, moved in the process of jaw another side, needle guard and back-connected suture thereof are through 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 one section one section of purse wire through tissue.After rotariling actuate knob 42 approximately 1/2nd circumference, the seismaesthesia that hand has hook to block, at this moment suture needle assembly 3 is got back to initial position.
Finally, open jaw locking hook 26, pull purse-string forceps, making to stitch money releases, when enough used times of the line of emitting, cut off both sides suture, take out purse-string forceps, two side stretching sutures, adjust position, the head of anastomat is placed in tissue, tension both sides suture, suture is tied up on the center-pole of circular anastomosis device head and manually fasten, play pocket and complete.
This circle automatically purse-string forceps is applicable to the narrow operative site that the positions such as rectum resection or esophagus excision are limited to, and 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 the present invention is done to 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 (8)
1. a circular purse string clamp for pocket be can automatically beat, fixed caliper, moving caliper, suture needle assembly and suture needle driving device it is characterized in that comprising, wherein:
Fixed caliper comprises fixed handle and fixing head, and fixing head one side is provided with arc toothed edge;
Moving caliper comprises handle portion, fork-shaped portion and arc-shaped head, arc-shaped head be provided with can with the dentalation of fixing head closure;
The fixed handle of fixed caliper passes the fork-shaped portion of moving caliper, and is rotatably connected by steady pin, in the closed purse-string forceps head forming of the fixing head of fixed caliper and the arc-shaped head of moving caliper, is provided with annular suture needle chute;
Suture needle assembly is arranged in described annular suture needle chute;
Suture needle driving device is vertically through the fixed handle of fixed caliper, and the head of suture needle driving device drives suture needle assembly to move around annular suture needle chute.
2. the circular purse string clamp that can automatically play pocket according to claim 1, the afterbody that it is characterized in that described suture needle driving device is fixed with drive knob, head is fixed with travelling gear, and being engaged with swing arm gear in the fork-shaped portion corresponding position with moving caliper, swing arm gear is connected with suture needle assembly by swing arm.
3. the circular purse string clamp that can automatically play pocket according to claim 1, it is characterized in that the inside and outside Curved seaming needle that described suture needle assembly comprises slide block and is fixedly connected with slide block, described annular suture needle chute is inside and outside suture needle chute in section corresponding to dentalation, in other section, is slide block chute.
4. the circular purse string clamp that can automatically play pocket according to claim 3, it is characterized in that in the fixing head of described fixed caliper, place, one end at dentalation is provided with wire casing and thimble baffle plate, in wire casing, be equipped with two absorbable sutures, suture is connected with inside and outside needle guard by the through hole in fixing head.
5. the circular purse string clamp that can automatically play pocket according to claim 4, is characterized in that the head of described inside and outside suture needle is taper and is provided with barb.
6. the circular purse string clamp that can automatically play pocket according to claim 1, is characterized in that the described fixing head of fixed caliper and the arc-shaped head of moving caliper respectively form by forward and backward two, and annular suture needle chute is arranged between forward and backward two.
7. the circular purse string clamp that can automatically play pocket according to claim 1, is characterized in that the described fixed handle of fixed caliper and the handgrip portion correspondence of moving caliper are provided with jaw locking hook.
8. according to the circular purse string clamp that can automatically play pocket described in any one in claim 1-7, it is characterized in that described fixed handle tail end is also provided with safety, these safety comprise insurance knob, with insure the safety axis that knob is fixedly connected with and be fixed on the latch segment on safety axis, the afterbody of described suture needle driving device is provided with the draw-in groove corresponding with latch segment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210345596.XA CN102824202B (en) | 2012-09-17 | 2012-09-17 | Circular purse-string forceps capable of automatically sewing in purse way |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210345596.XA CN102824202B (en) | 2012-09-17 | 2012-09-17 | Circular purse-string forceps capable of automatically sewing in purse way |
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| Publication Number | Publication Date |
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| CN102824202A CN102824202A (en) | 2012-12-19 |
| CN102824202B true CN102824202B (en) | 2014-10-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210345596.XA Active CN102824202B (en) | 2012-09-17 | 2012-09-17 | Circular purse-string forceps capable of automatically sewing in purse way |
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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 |
| CN109620321A (en) * | 2019-01-11 | 2019-04-16 | 郑州大学第附属医院 | Cavity inner tissue stitching unstrument |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6520973B1 (en) * | 2000-08-30 | 2003-02-18 | Ethicon Endo-Surgery, Inc. | Anastomosis device having an improved needle driver |
| CN102228385B (en) * | 2010-07-06 | 2012-11-07 | 北京中法派尔特医疗设备有限公司 | Circular purse string clamp |
| CN202776431U (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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