CN100574710C - Pincer type lacuna stitching instrument - Google Patents
Pincer type lacuna stitching instrument Download PDFInfo
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- CN100574710C CN100574710C CN 200710090713 CN200710090713A CN100574710C CN 100574710 C CN100574710 C CN 100574710C CN 200710090713 CN200710090713 CN 200710090713 CN 200710090713 A CN200710090713 A CN 200710090713A CN 100574710 C CN100574710 C CN 100574710C
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Abstract
The invention provides a kind of Pincer type lacuna stitching instrument, it comprises: front end have pinprick suture needle, have needle outlet outer tube, be positioned at outer tube and slidably pull bar, form the flexible handle and the fixed handle in joint each other, the front end of pull bar forms and picks up the wire triangle sheet, the rear end of pull bar and flexible handle form the joint, the rear end of described outer tube and described fixed handle are fixed, the rear end of suture needle becomes the joint with pull bar, the radian of suture needle partly passes joint cover, and the joint cover forms the joint with outer tube.The function that above-mentioned Pincer type lacuna stitching instrument has been realized holding pin and picked up line by a simple pull bar drive mechanism, structure is elongated, be applicable to very deeply and in narrow and small art district, sew up, can be made into interlock, counter opening or non-interlock etc. and the existing various pincers similar shapes of stinging as required according to this principle, use the suture needle of different model, to be applicable to the breach of deep art district diverse location and direction.
Description
Technical field
The present invention relates to a kind of operating medical apparatus and instruments that is used for, relate in particular to a kind of Pincer type lacuna stitching instrument.
Background technology
In surgical operation, often run into the art district be positioned at lacuna very deeply and also narrow position, as the position that needs in positions such as nasal cavity, cavum laryngis, auditory meatus deep and some endoscopic surgerys to sew up, these positions often are positioned on the vitals or near it, tissue is fragile, not anti-tractive, carry out at these positions strut, cut, operation techniques such as shearing, clamp all finish by corresponding apparatus is auxiliary, but never have corresponding suture instruments, accurate stitching how to carry out these positions is one and perplexs a surgical difficult problem always.Traditional suture instruments is made up of needle holder, suture needle, suture, and the pinprick of suture needle is positioned at the tail end of suture needle.Sewing process is: the surgeon retracts tissue with operating theater instruments such as tweezers or mosquito forcepss on the other hand and exposes operating field, another hand-held needle holder clamping is installed with the suture needle of suture, from the tissue one side inserting needle that will sew up, syringe needle to sew up organize opposite side to pass after unclamp needle holder, the needle point that the same needle holder clamping of reuse has passed, the tail end that pin is pulled out simultaneously by pin goes out tape, carries out the suture knotting after suture needle is taken off, and finishes once and sews up.The suture instruments of this structure exposes the stitching of position (such as skin) preferably and can not show its shortcoming at operating field, but be difficult to finish nasopharynx, cavum laryngis, auditory meatus etc. very deeply and also the stitching at narrow lacuna position, reason is as follows: 1, the volume that needle holder is bigger make it be difficult to enter some less lacunas or enter after stopped the patient the visual field; 2, needle point to sew up organize opposite side to pass after, need the assistant to help patient's clamping needle point, because can't clamping after unclamping needle holder and before the patient clamps needle point because the answer of tissue often makes needle point move back to again in the tissue, but assistant's help brings two problems again, secondly at first because the narrow and small of art district is difficult to make the assistant to insert another operating theater instruments again, inconsistently usually cause tearing of tissue or losing of suture needle because assistant and patient exert oneself; 3, because the angle of needle holder clamping suture needle and the angular range of exerting oneself when sewing up are limited, deeply and also narrow and small lacuna art district in, a lot of wounds are owing to the reason of angle and position can't be finished stitching, some positions that should sew up yield and change filling or compressing into, and the healing in art district and the effect of operation all can be affected.Because the needs of minimally invasive surgery development; people have improved the utensil of various stitchings; the stiching instrument that patent documentations such as the patent No. of announcing as: Patent Office of the People's Republic of China is 92232376.3, the patent No. is 200520069505.X disclose is pinprick and is positioned at the suture needle front end; protected the tissue that to sew up preferably; but all only finished the action of threading, also needed another hands of patient or assistant's help.The application number that Patent Office of the People's Republic of China announced in January, 2006 is that 200410052745.9 patent documentation has disclosed a kind of surgical operation automatic suturing machine, it has solved the conforming problem of needle force, and reduced the damage of tissue, but complex structure, volume are big, operation sequence is many, are not suitable for the stitching of lacunula.In recent years, because artificial intelligence, the development of related disciplines such as tissue engineering, people begin to imitate the more small apparatus of staff making and (ask for an interview MariaSiemionow, KaganOzer, Wlodzimierz Siemionow, Robotic assistance inmicrosurgery, Journal of reconstructive microsurgery, 2000, (16) 8:643-649, microsurgery is assisted by robot, repair the microsurgery magazine, 2000, (16) 8:643-649) or design Based Intelligent Control pin (ask for an interview Patrick Sears and Pierre Dupont, A Steerable Needle Technology Using Curved Concentric Tubes, International Conference on Intelligent Robots and Systems, October9-15,2006, Beijing, China, a kind of controlled pin of using crooked concentric tube, international intelligent robot system meeting, 9-15 day in October, 2006, the BeiJing, China), but all be limited to the development of its subject itself, these researchs only rest on theoretical level, do not have available apparatus to produce at present as yet.
Summary of the invention
The present invention takes into full account the various shortcomings that occur in similar at present or the relevant apparatus both at home and abroad, and is overcome.Its objective is by the present invention realize being positioned at very deeply and also the accurate stitching in narrow art district.
For this reason, according to an aspect of the present invention, a kind of Pincer type lacuna stitching instrument is provided, wherein, described Pincer type lacuna stitching instrument comprises: front end has the suture needle of pinprick, outer tube with needle outlet, be positioned at described outer tube and pull bar slidably, form the flexible handle and the fixed handle in joint each other, the front end of described pull bar forms and picks up the wire triangle sheet, the rear end of described pull bar and described flexible handle form the joint, the rear end of described outer tube and described fixed handle are fixed, the rear end of described suture needle becomes the joint with described pull bar, the radian of described suture needle partly passes joint cover, and described joint cover forms the joint with described outer tube.
According to another aspect of the present invention, a kind of Pincer type lacuna stitching instrument is provided, wherein, described Pincer type lacuna stitching instrument comprises: front end has the suture needle of pinprick, outer tube with needle outlet, be positioned at described outer tube and pull bar slidably, form the flexible handle and the fixed handle in joint each other, the rear end of described pull bar and described flexible handle form the joint, the rear end of described outer tube and described fixed handle are fixed, the rear end of described suture needle and described outer tube form the joint, radian partly passes joint cover, one flexure strip that can make progress opisthotonos is arranged at the rear in described joint cover and the formed joint of described pull bar, the front end of described flexure strip forms and picks up the wire triangle sheet, and the rear end of described flexure strip is connected with described pull bar.
According to a further aspect of the invention, a kind of Pincer type lacuna stitching instrument is provided, wherein, described Pincer type lacuna stitching instrument comprises: front end has the suture needle of pinprick, the flexible handle and the fixed handle that have the outer tube of needle outlet and form the joint each other, be divided into two chambeies up and down by dividing plate in the middle of the tube chamber of described outer tube, ten line pull bars are arranged respectively and hold the pin pull bar and pass through, the described line pull bar that picks up forms the joint with described flexible handle respectively with the rear end of holding the pin pull bar, the described front end that picks up the line pull bar forms and picks up the line hook, the rear end of described suture needle and the described front end of holding the pin pull bar form the joint, the straight-arm of described suture needle previous trailing partly passes joint cover, and described joint cover forms the joint with the front end of described dividing plate.
The function that above-mentioned Pincer type lacuna stitching instrument has been realized holding pin and picked up line by a simple pull bar drive mechanism, structure is elongated, be applicable to very deeply and in narrow and small art district, sew up, can be made into interlock, counter opening or non-interlock etc. and the existing various pincers similar shapes of stinging as required according to this principle, use the suture needle of different model, to be applicable to the breach of deep art district diverse location and direction.The present invention has taken into full account doctor's operating habit previously, its profile and operation all with existing various sting clamp basic identical, the doctor only need aim at the position interlock that will sew up can finish stitching once, and the loaded down with trivial details of nurse's threading saved in the design of bobbin, can sew up continuously, simple to operate, efficient improves.
Description of drawings
With reference to accompanying drawing, from as an example following but be not used in the description of restriction the object of the invention, will become more obvious according to the feature and advantage of Pincer type lacuna stitching instrument of the present invention, wherein:
Fig. 1 is the general illustration according to the interlock Pincer type lacuna stitching instrument of first embodiment of the invention;
Pull bar and flexible handle that Fig. 2 schematically shows the interlock Pincer type lacuna stitching instrument among Fig. 1 constitute the joint;
Fig. 3 picks up the line process schematic diagram for interlock Pincer type lacuna stitching instrument shown in Figure 1;
Fig. 4 schematically shows suture needle and the pull bar and the outer tube formation joint of the interlock Pincer type lacuna stitching instrument among Fig. 1;
Fig. 5 schematically shows the bobbin and the axostylus axostyle combination of interlock Pincer type lacuna stitching instrument shown in Figure 1;
Fig. 6 is the anti-sketch map of opening Pincer type lacuna stitching instrument according to second embodiment of the invention;
Fig. 7 is the sketch map according to the non-interlock Pincer type lacuna stitching instrument of third embodiment of the invention.
The specific embodiment
As shown in Figure 1, the interlock Pincer type lacuna stitching instrument by suture needle 17, pick up wire triangle sheet 1, outer tube 6, pull bar 5, flexible handle 10 and fixed handle 15 and form.Pull bar 5 is positioned at outer tube 6 and can slides within it, and pull bar 5 front ends form and pick up wire triangle sheet 1, and rear end and flexible handle 10 form joint 8.The front end sealing of outer tube 6, front end has needle outlet 2 after a while, and rear end and fixed handle 15 are fixing.The pinprick 18 of suture needle 17 is at the front end of suture needle, and its rear end and pull bar 5 form joint 3, and radian partly passes joint cover 4, and joint cover 4 forms the joint with the diapire of outer tube 6.Flexible handle 10 forms joint 9 with fixed handle 15, and their lower end forms first-hand fingerstall 13 and second-hand's fingerstall 14 respectively.There is L shaped axostylus axostyle 12 posterior end of flexible handle 10, and bobbin 11 is enclosed within on the axostylus axostyle 12, and suture 7 passes the solidus circle 16 that is positioned at outer tube 6 rear ends after drawing from bobbin 11, advances forward and passes the pinprick 18 of suture needle 17 front ends.
As shown in Figure 2, the rear end of pull bar 5 is expanded and is that ball 19, the upper end of flexible handle 10 expand and is that hollow hemisphere 20 to open front, ball 19 are positioned at hemisphere 20 and form the ball pivot joints.
Fig. 3 shows the line process that picks up of interlock Pincer type lacuna stitching instrument.When pull bar 5 pulls back, motion by joint 3 and joint cover 4, promotion suture needle 17 is passed to organize and is passed needle outlet 2 forward, suture 7 is promptly taken out of thereupon, suture 7 is divided into two strands owing to passing pinprick 18, lays respectively at the both sides up and down of suture needle 17, because the interlock of whole apparatus, along with pull bar 5 pulls back, make ten wire triangle sheets 1 also fall back on the rear of needle outlet 2; When suture needle 17 retreats, because the extruding of tissue, before pinprick is retracted in the tissue, suture 7 is lax crooked, simultaneously pull bar 5 pushes away forward, and ten wire triangle sheets 1 are marched forward, and passes suture 7 near the gap between one and the suture needle 17 of suture needle 17 sides, after needle outlet 2 was withdrawed from suture needle 17, one of suture 7 close suture needle 17 sides then picked up wire triangle sheet 1 and hooked.
As shown in Figure 4, suture needle 17 front ends have pinprick 18, and the rear end forms joint eye 21, and pull bar 5 is in the articular process 22 of the oriented outer process in rear that is positioned at needle outlet 2, and the joint eye 21 of suture needle 17 can be nested on the articular process 22 and form the joint with it.The diapire front opening of outer tube 6 forms joint 23 with joint cover 4, and the radian of joint cover 4 and the radian of suture needle 17 rear ends adapt, and it is fixing to pass joint cover 4 during suture needle 17 assemblings, is changed when this structure can make suture needle 17 rusts.When pull bar 5 pulls back, because the activity in joint 3 and joint 23 can promote suture needle 17 internal rotation forward, enter needle outlet 2, pick up the rear that wire triangle sheet 1 falls back on needle outlet 2 simultaneously.
Fig. 5 is the sketch map of bobbin and axostylus axostyle combination, axostylus axostyle 12 is L shaped, be divided into horizontal part 26 and vertical component effect 25, vertical component effect 25 is fixed on the flexible handle 10, bobbin 11 is enclosed within on the horizontal part 26 of axostylus axostyle 12, the free-end of horizontal part 26 has the silicon rubber cup 24 that can be locked, and taking off silicon rubber cup 24 can be enclosed within bobbin 11 on the horizontal part 26 of axostylus axostyle 12, silicon rubber cup 24 is locked to prevent that on the top of horizontal part 26 bobbin 11 from deviating from again.
Fig. 6 shows the anti-Pincer type lacuna stitching instrument of opening according to second embodiment of the invention.The diapire of suture needle 17 rear ends and outer tube 6 forms the joint.The radian of suture needle 17 partly passes joint cover, and the joint cover forms joints with pull bar 5, and a flexure strip 27 that can make progress opisthotonos is arranged at the rear in this joint, and the front end of flexure strip 27 forms and picks up wire triangle sheet 1, and rear end and pull bar 5 join.The same Fig. 1 of all the other structures.
Fig. 7 shows the non-interlock Pincer type lacuna stitching instrument according to third embodiment of the invention.Is divided into two chambeies up and down by dividing plate 29 in the middle of the tube chamber of outer tube 6, ten line pull bars 28 are arranged respectively and holds pin pull bar 32 and pass through, the rear end of the two forms joints 30,31 with flexible handle 10 respectively, and the front end that picks up line pull bar 28 forms and picks up line hook 33.Suture needle 17 is " second " shape, and pinprick 18 is at its front end, and its rear end forms the joint with holding pin pull bar 32 front ends, and the straight-arm before its rear end partly passes joint cover 4, and joint cover 4 forms the joint with dividing plate 29.The same Fig. 1 of all the other structures.
The following describes concrete working condition according to interlock Pincer type lacuna stitching instrument of the present invention.
Before the operation beginning, instrument nurse is selected the interlock Pincer type lacuna stitching instrument of appropriate size, takes off the silicon rubber cup 24 on the axostylus axostyle 12, and bobbin 11 is inserted in the horizontal part 26 of axostylus axostyle 12, silicon rubber cup 24 is locked on the top of axostylus axostyle horizontal part 26 again, finishes the bobbin assembling.Suture 7 is drawn from bobbin 11, pass the solidus circle 16 that is positioned at outer tube 6 rear ends, advance forward and pass the pinprick 18 of suture needle 17 front ends, make free-end, finish threading near the one side of picking up wire triangle sheet 1.Stiching instrument is promptly assembled and is finished standbyly, in the operation process afterwards, does not need nurse's threading once more.
When needing to sew up in the art, patient's one hand is held the interlock Pincer type lacuna stitching instrument as holding the common pincers of stinging, the position that aligning will be sewed up, make the front end of suture needle 17 and the both sides that needle outlet 2 is positioned at the tissue that will sew up, pull flexible handle 10 gently, first-hand fingerstall 13 is moved to second-hand's fingerstall 14, under the activity in joint 9 and joint 8, flexible handle 10 pulling pull bars 5 backward, under the activity in joint 3 and joint 23, the tip of suture needle 17 inwardly is the radian motion, passes organizing of will sewing up and passes needle outlet 2 then forward, suture 7 is promptly taken out of thereupon, suture 7 is divided into two strands owing to passing pinprick 18, lays respectively at the both sides up and down of suture needle 17, in this process, pull bar 5 pulls back, and then makes ten wire triangle sheets 1 fall back on the rear of needle outlet 2 backward; And then flexible handle 10 is strutted, be that first-hand fingerstall 13 is away from second-hand's fingerstall 14, flexible handle 10 pushing drawing rods 5 march forward as a result, activity by joint 3 and joint 23, suture needle 17 retreats, because the extruding of tissue, before pinprick 18 was retracted in the tissue, suture 7 was lax crooked, in this process, along with pull bar 5 pushes away forward, promotion is picked up wire triangle sheet 1 and is passed suture 7 near the gap between suture needle 17 sides one (be free-end one) and the suture needle 17, and after needle outlet 2 was withdrawed from suture needle 17, suture 7 was positioned at top one of suture needle 17 (be free-end one) and is then picked up wire triangle sheet 1 and hook, after original position was return in suture needle 17, suture was promptly stayed in the tissue.In lacuna, take out in the process of stiching instrument, because the tractive of tissue extruding and pick-up 1, make suture 7 continue to be pulled bobbin 11 rotations, suture 7 is prolonged a segment distance, suitable distance is cut off suture in the outside of pinprick 18, the suture free-end is also deviate from from the space of picking up wire triangle sheet 1 and outer tube 6, ties a knot.Remaining suture still is through in the pinprick, does not need once more threading to sew up next time.
Operation is drawn back silicon rubber cup 24 after finishing, and takes off bobbin 11, cleaning equipment, and it is standby to sterilize.
The concrete working condition of an anti-Pincer type lacuna stitching instrument shown in Figure 6 is as described below.
When flexible handle 10 pulling pull bars 5 move backward, the motion in the joint that joint that the diapire by suture needle 17 rear ends and outer tube 6 forms and joint cover 4 and pull bar 5 form, move in the back that pulls to that the front end of suture needle 17 is reversed, after passing the tissue that to sew up, pass needle outlet 2, suture 7 is promptly taken out of thereupon, suture 7 is divided into two strands owing to passing pinprick 18, lay respectively at the both sides of suture needle 17, free-end is positioned at the side near flexure strip 27, in the time of this process, flexure strip 27 pull bar 5 that becomes gradually picks up the place ahead that wire triangle sheet 1 returns to needle outlet 2.When flexible handle 10 pushing drawing rods 5 travel forward, because the motion in the joint that joint that the diapire of suture needle 17 rear ends and outer tube 6 forms and joint cover 4 and pull bar 5 form, suture needle 17 retreats, because the extruding of tissue, before pinprick is retracted in the tissue, suture 7 is lax crooked, in this process, flexure strip 27 advances under the promotion of pull bar 5, the roof of the front end opisthotonos tailing edge outer tube 6 of duct occlusion is advanced backward outside, make ten wire triangle sheets 1 pass suture 7 one (be free-end one) and the gap between the suture needle 17 near flexure strips 27, after needle outlet 2 is withdrawed from suture needle 17, one of suture free-end then picked up wire triangle sheet 1 and hooked, and after original position was return in suture needle 17, suture was promptly stayed in the tissue.All the other processes and step are with above-mentioned.This kind jaw type stiching instrument is applicable to the breach of sewing up on art district, the deep sidewall.
The concrete working condition of non-interlock Pincer type lacuna stitching instrument shown in Figure 7 is as described below.
When flexible handle 10 promotes to hold pin pull bar 32 and travels forward, by of the motion of suture needle 17 rear ends with the joint of the front end formation of the joint of holding 32 formation of pin pull bar and joint cover 4 and outer tube 6 internal partitions 29, before being pushed to, the front end of suture needle 17 is radian fortune merit, pass the tissue that to sew up, suture 7 is promptly taken out of thereupon, suture 7 is divided into two strands owing to passing pinprick 18, lay respectively at the both sides of suture needle 17, free-end is positioned near a side of picking up line hook 33 motion aspects, in the time of this process, flexible handle 10 also promotes to pick up line pull bar 28 and travels forward, and makes ten line hooks 33 cross suture 7 forward near the gap between one (be free-end one) of picking up line hook 33 and the suture needle 17; When flexible handle 10 pulling is held pin pull bar 32 and is moved backward, owing to of the motion of suture needle 17 rear ends with the joint of the front end formation of the joint of holding 32 formation of pin pull bar and joint cover 4 and outer tube 6 internal partitions 29, suture needle 17 retreats, in this process, the motion of flexible handle 10 also makes ten line pull bars 28 and picks up line hook 33 and slides backward, and suture needle 17 is when picking up line hook 33 staggered leaving, and one of suture free-end then picked up line hook 33 and hook, after original position was return in suture needle 17, suture was promptly stayed in the tissue.All the other processes and step are with above-mentioned.This kind jaw type stiching instrument is applicable to sews up art district, the deep extremely limited wound in the visual field.
The corresponding suture needle model of this kind stiching instrument is fixed, and uses the different model suture needle, should change the stiching instrument of respective model, so that the position of needle outlet 2 and direction and used suture needle adapt.
Because the tissue that stitches is most of is deep soft tissue, suture needle 17 just can rust after using repeatedly repeatedly.When the syringe needle rust, the concrete working condition of changing suture needle is as follows:
The inwardly light articular process 22 of pressing on the pull bar 5 of instrument nurse, outwards gently draw the suture needle rear end, make joint 3 dislocations, take off suture needle 17, choose corresponding new suture needle 17, the needle point of new suture needle 17 passes joint cover 4 and overlaps 4 to suture needle rear end and joint and be locked pushing away forward, inwardly light articular process 22 of pressing on the pull bar 5, outwards gently draw the suture needle rear end, rely on the elasticity of the two to make the joint eye 21 that articular process 22 is inserted in suture needle 17 rear ends form joint 3, finish suture needle and change.
Though here with reference to disclosed structrual description the present invention, the present invention is not limited to described details, and also is applicable to second and third embodiment at the disclosed structure of first embodiment.The institute that the application is intended to cover in the scope that falls into improvement purpose or appended claims changes or modification.
Claims (8)
1. a Pincer type lacuna stitching instrument is characterized in that,
Described Pincer type lacuna stitching instrument comprises: front end have pinprick (18) suture needle (17), have needle outlet (2) outer tube (6), be positioned at described outer tube (6) and slidably pull bar (5), form the flexible handle (10) and the fixed handle (15) in joint each other;
The front end of described pull bar (5) forms and picks up wire triangle sheet (1);
The rear end of described pull bar (5) and described flexible handle (10) form the joint;
The rear end of described outer tube (6) and described fixed handle (15) are fixing;
The rear end of described suture needle (17) and described pull bar (5) form the joint;
The radian of described suture needle partly passes joint cover (4), and described joint cover (4) forms the joint with described outer tube (6).
2. Pincer type lacuna stitching instrument according to claim 1, it is characterized in that, the lower end of described flexible handle (10) is provided with the L shaped axostylus axostyle (12) that is divided into horizontal part (26) and vertical component effect (25), on the horizontal part (26) of described axostylus axostyle (12), be with bobbin (11), the free-end of described horizontal part (26) has the silicon rubber cup (24) that can be locked, and the rear end of described outer tube (6) is provided with solidus circle (16).
3. Pincer type lacuna stitching instrument according to claim 1 and 2, it is characterized in that, the rear end of described pull bar (5) is expanded and is that ball (19), the upper end of described flexible handle (10) are expanded and is that hollow hemisphere to open front (20), described ball (19) are positioned at described hemisphere (20) and form the ball pivot joint.
4. Pincer type lacuna stitching instrument according to claim 1 and 2, it is characterized in that, the rear end of described suture needle (17) forms joint eye (21), described pull bar (5) is in the articular process (22) of the oriented outer process in rear that is positioned at described needle outlet (2), described joint eye (21) can be nested on the described articular process (22), the radian of described joint cover (4) and the radian of described suture needle (17) rear end adapt, and it is fixing to pass described joint cover (4) during described suture needle (17) assembling.
5. Pincer type lacuna stitching instrument according to claim 1 and 2 is characterized in that, described flexible handle (10) forms first-hand fingerstall (13) and second-hand's fingerstall (14) respectively with the lower end of described fixed handle (15).
6. a Pincer type lacuna stitching instrument is characterized in that,
Described Pincer type lacuna stitching instrument comprises: front end have pinprick (18) suture needle (17), have needle outlet (2) outer tube (6), be positioned at described outer tube (6) and slidably pull bar (5), form the flexible handle (10) and the fixed handle (15) in joint each other;
The rear end of described pull bar (5) and described flexible handle (10) form the joint;
The rear end of described outer tube (6) and described fixed handle (15) are fixing;
The rear end of described suture needle (17) and described outer tube (6) form the joint;
The radian of described suture needle (17) partly passes joint cover (4), and a flexure strip (27) that can make progress opisthotonos is arranged at the rear in described joint cover (4) and the formed joint of described pull bar (5);
The front end of described flexure strip (27) forms and picks up wire triangle sheet (1);
The rear end of described flexure strip (27) is connected with described pull bar (5).
7. Pincer type lacuna stitching instrument according to claim 6, it is characterized in that, the rear end of described pull bar (5) is expanded and is that ball (19), the upper end of described flexible handle (10) are expanded and is that hollow hemisphere to open front (20), described ball (19) are positioned at described hemisphere (20) and form the ball pivot joint.
8. a Pincer type lacuna stitching instrument is characterized in that,
Described Pincer type lacuna stitching instrument comprises: front end has the suture needle (17) of pinprick (18), flexible handle (10) and the fixed handle (15) that has the outer tube (6) of needle outlet (2) and form joint (9) each other;
Is divided into two chambeies up and down by dividing plate (29) in the middle of the tube chamber of described outer tube (6), ten line pull bars (28) are arranged respectively and holds pin pull bar (32) and pass through;
The described rear end of picking up line pull bar (28) and holding pin pull bar (32) forms the joint with described flexible handle (10) respectively;
The described front end that picks up line pull bar (28) forms and picks up line hook (33);
The rear end of described suture needle (17) and the described front end of holding pin pull bar (32) form the joint;
The straight-arm of described suture needle previous trailing partly passes joint cover (4);
Described joint cover (4) forms the joint with the front end of described dividing plate (29).
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200710090713 CN100574710C (en) | 2007-04-04 | 2007-04-04 | Pincer type lacuna stitching instrument |
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| CN 200710090713 CN100574710C (en) | 2007-04-04 | 2007-04-04 | Pincer type lacuna stitching instrument |
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| CN102626331B (en) * | 2012-04-19 | 2014-02-26 | 唐山市第二医院 | Lasso knot-tying device |
| CN112089457A (en) * | 2019-05-30 | 2020-12-18 | 香港大学深圳医院 | Integrated operation stitching instrument |
| TWI768990B (en) * | 2021-06-28 | 2022-06-21 | 黃慧夫 | Needle holder with thread cutter |
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| US5908428A (en) * | 1997-05-27 | 1999-06-01 | United States Surgical Corporation | Stitching devices for heart valve replacement surgery |
| CN2780099Y (en) * | 2005-03-03 | 2006-05-17 | 谢永 | Peritoneoscope operation stitching instrument |
| CN2805693Y (en) * | 2005-07-12 | 2006-08-16 | 田海 | Deep tissue stitching device |
| CN201012093Y (en) * | 2007-04-04 | 2008-01-30 | 中国医学科学院北京协和医院 | Pincers type lacuna stitching instrument |
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| CN101278851A (en) | 2008-10-08 |
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