CN206560500U - A kind of new lacrimal point extension fixture - Google Patents

Abstract

A kind of new lacrimal point extension fixture, solves the frequent replacing expander that prior art is present, and narrow lacrimal point is easily closed again after surgery, the problem of needing repeated multiple times treatment, increase patient suffering.Including the first expansion caliper and the second expansion caliper, it is characterised in that：Two expansion caliper front ends set in the holding part between expansion jaw, two panels expansion jaw and set expansion bolt assembly respectively；Expansion bolt assembly includes top and sets the lock chamber for pushing away tightening latch, and lock chamber cavity lower end sets cavity；The pole cap that tightening latch is disposed with push rod including downside is pushed away, push rod is extend into the pole perforating hole of lock chamber；Lacrimal point expansion bolt includes the key that upper end is provided with flange, and key lower end sets tapered plug head, and the central through hole top of key sets fixed groove；Lacrimal point expansion bolt is arranged in the cavity of lock chamber bottom.Its is reasonable in design, compact conformation, and expansion is rapid, easy to operate, sustainability expansion lacrimal point, it is to avoid perform the operation repeatedly, reduce patient suffering.

Description

A kind of new lacrimal point extension fixture

Technical field

The utility model belongs to technical field of medical instruments, and in particular to a kind of sustainability expands lacrimal point, prevents lacrimal point ISR and adhesion, it is to avoid the new lacrimal point extension fixture for the patient suffering that performs the operation, reduces repeatedly.

Background technology

Epiphora or tearing against wind, are a kind of clinically common diseases, not only bring great pain to patient, and for a long time Tear impregnates, and can cause chronic stimulation membranous conjunctivitis, lower eyelid and Face and cheek eczematous dermatitis.Patient cleans tears for a long time, for a long time Effect can cause lower eyelid ectropion, so as to aggravate epiphora symptom.

Epiphora or tearing against wind are more because stenosis of lacrimal punctum, occlusion or lack such as causes, and need to carry out lacrimal point expansion, lacrimal point in treatment Expander is essential medicine equipment in lacrimal point dilation procedure.Traditional canaliculus dilator head is in cone, and tip is sharper, Expand lacrimal point after lacrimal point by inserting by force.To allow lacrimal point fully to expand, traditional canaliculus dilator is divided into large, medium and small grade three Model is planted, trumpet is typically first used during operation, then with medium size, finally use large size canaliculus dilator, little by little lacrimal point is expanded； And after the insertion of maximum number canaliculus dilator, also need to hold more than 10 minutes of expander with hand steered, to keep expander to remain in State in lacrimal point, plays a part of loose lacrimal point, persistently expands.

During traditional canaliculus dilator operation, expander need to be frequently changed, not only cumbersome, waste time and energy, Er Qiezeng The workload of medical personnel is added.The direction and the direction of expansion lacrimal point inserted due to canaliculus dilator are inconsistent, in addition lacrimal point Not being fixed easily, often the expansion of influence lacrimal point, and easily stab lacrimal causes postoperative resistance narrow.In the narrow and small patient of processing lacrimal point, Canaliculus dilator is set accurately to be directly entered puncta, can be difficult, cause the operating time to extend；Careless manipulation will also wound And eyeball.In addition, in order to maintain expansion effect, need to remain in expander in lacrimal point with hand steered hold, because expander is big and weighs, face At most the time of adhering to can not possibly be taken out after expander, narrow lacrimal point is easy to and shrinks back narrow shape more than 20 minutes on bed State, or the lacrimal point of closure are closed again, are needed the repeated multiple times treatment of patient, are not only increased patient suffering, and clinical efficacy is not It is good.Therefore be necessary to be improved the lacrimal point extension fixture of prior art.

Utility model content

The utility model aiming above mentioned problem there is provided a kind of sustainability expand lacrimal point, prevent lacrimal point ISR and Adhesion, it is to avoid the new lacrimal point extension fixture for the patient suffering that performs the operation, reduces repeatedly.

The technical scheme that the utility model is used is：The new lacrimal point extension fixture includes the first expansion caliper and second Expand caliper, it is characterised in that：The first expansion caliper includes the first vice body, and the front portion of the first vice body is provided with neck, the The rear portion of one vice body is provided with the first arc shaped pincers tail, and the afterbody of the first arc shaped pincers tail is provided with recess；The second expansion caliper Including the second vice body, the front portion of the second vice body is provided with neck, and the rear portion of the second vice body is provided with the second arc shaped pincers tail, the second arc The afterbody of clamp tail is provided with nose；First expansion caliper and two necks of the second expansion caliper front end are symmetrically arranged, The middle part of two necks is connected by connection rotating shaft；The front end of two necks is respectively arranged with the expansion jaw of taper, stretching pliers The axis and neck of mouth are perpendicular, and two expansion jaws are arranged symmetrically to form cone hollow cone shape directed downwardly；Two panels expands Open in the holding part between jaw and be provided with expansion bolt assembly；The nose of second expansion caliper the second arc shaped pincers tail afterbody is extend into In the recess of first expansion caliper the first arc shaped pincers tail afterbody；The expansion bolt assembly includes the lock chamber of taper, lock chamber Top, which is provided with, pushes away tightening latch, and the bottom of lock chamber is provided with lacrimal point expansion bolt；The lock chamber includes cavity, and the upper end of cavity is set The pole perforating hole arranged vertically is equipped with, the lower end of cavity is provided with cavity, and the bottom of pole perforating hole and the top of cavity are connected；Cavity The connecting rod arranged vertically is provided with the middle part of cavity, the bottom of connecting rod is provided with fixed plush copper；The tightening latch that pushes away includes The push rod arranged vertically is provided with the downside of pole cap, pole cap, push rod is extend into the pole perforating hole of lock chamber；The lacrimal point expands bolt Including key, the upper end of key is provided with flange, and the lower end of key is provided with the middle part of tapered plug head, key the center that is provided with and led to Hole, the top of central through hole is provided with fixed groove；The top of lacrimal point expansion bolt is arranged in the cavity of lock chamber bottom, fixed The connecting rod of cavity space intracavitary is extend into the central through hole of lacrimal point expansion bolt, and the fixation plush copper of connecting rod lower end is connected to center and led to In the fixed groove on hole top；The bottom for pushing away tightening latch push rod is in contact with the upper surface that lacrimal point expands bolt flange.

The fixed groove of the lacrimal point expansion bolt is cross neck；Correspondingly, the fixation that lock chamber cavity lower end is set The shape of cross section of plush copper is cross.To utilize the cross fit structure, during lacrimal point expansion bolt is placed, pass through Pushing away tightening latch drives lock chamber and lacrimal point expansion bolt together to rotate, and is easy to lacrimal point to expand the implantation of bolt.

First expansion caliper the first arc shaped pincers tail and second expansion caliper the second arc shaped pincers tail, are the elasticity of sheet Arcuate structure.So that in situation about being acted on without external force, the first expansion caliper and the second expand caliper front end two expand jaws Being capable of tight closure；And after the expansion jaw insertion lacrimal point of closure, it is only necessary to which less strength can make two stretching plierses Mouth opens appropriate angle, is easy to the expansion of lacrimal point.

On the inwall of the first expansion caliper and two expansion jaws of the second expansion caliper front end, it is respectively arranged with anti- Draw runner line.To increase frictional force during clamping expansion bolt assembly, it is easy to lacrimal point to expand the placement of bolt.

Scale is provided with the push rod for pushing away tightening latch.With by the mark of scale, to show that lacrimal point expands the insertion of bolt Depth.

Spacing block set is provided with the inside of first vice body or the second vice body.It is firmly excessive during operation to prevent, make two Side stretching pliers, which is made a slip of the tongue, crosses expansion.

Anti-slip roller line is respectively arranged with the outside of first vice body and the second vice body.To increase vice body skin-friction force, Keep the gripping stability of vice body.

With new lacrimal point extension fixture is matching used takes bolt tweezer, including tweezer body and tweezer head, it is characterised in that：The tweezer body Including main body, main body is hollow structure, and the both sides of main body are respectively arranged with gripping handle, and two gripping handles are in the shape of the letter V arrangement, The rear portion of two gripping handles is connected by tweezer tail；Two anterior inner sides of gripping handle are respectively arranged with elastic clip, elasticity One end of intermediate plate on the inside of gripping handle with being connected, and the other end of elastic clip is extend into the rearward end of hollow structure main body；Before Intermediate connector is provided between the main body in portion and the tweezer tail at rear portion；The front end of main body is provided with tweezer neck, tweezer neck be by straight section and The tubular structure that curved segment is constituted, two panels is provided with tweezer neck and is rigidly connected piece, and the end of tweezer neck curved segment is provided with tweezer head, tweezer head by The flat lance shape tweezer point of two panels is constituted, and flat lance shape tweezer point is semicircular flat structure；The rear end of the flat lance shape tweezer point of two panels, passes through respectively The piece that is rigidly connected is connected with the end that two elastic clips are extend into main body.So that the lacrimal point remained in lacrimal point expansion bolt to be taken Go out, complete treatment.

It is described to take the straight section of bolt tweezer body front end tweezer neck and the angle of curved segment to be 90~150 degree.The whole of bolt tweezer is taken to strengthen Body is handling.

Scale is provided with the curved segment for taking bolt tweezer body front end tweezer neck.With by the mark of scale, to judge to take bolt The distance that tweezer is stretched into.

The beneficial effects of the utility model：Because the utility model using two front ends sets cone expansion jaw respectively First expansion caliper and the second expansion caliper, the axis for expanding jaw are vertical with neck, and two expansion jaws are arranged symmetrically to be formed Cone hollow cone shape directed downwardly；Expansion bolt assembly is set in holding part between two panels expansion jaw；Second arc shaped pincers The nose of tail is extend into the recess of the first arc shaped pincers tail；Expanding bolt assembly includes lock chamber, and lock chamber top sets and pushes away tightening latch, Lock chamber bottom sets lacrimal point to expand bolt；Lock chamber includes the cavity that upper end is provided with pole perforating hole, and cavity lower end sets cavity, worn Rod aperture bottom is communicated with cavity top；Connecting rod is set in the middle part of cavity cavity, and connecting rod bottom sets fixed plush copper；Push away tightening latch It is disposed with the pole cap of push rod vertically including downside, push rod is extend into the pole perforating hole of lock chamber；Lacrimal point expansion bolt is set including upper end The key of flange is equipped with, key lower end sets the central through hole top in the middle part of tapered plug head, key to set fixed groove；Lacrimal point expands Open bolt top to be arranged in the cavity of lock chamber bottom, the center that the connecting rod in lock chamber cavity extend into lacrimal point expansion bolt leads to In hole, the fixation plush copper of connecting rod lower end is connected to the structure type in fixed groove, so its is reasonable in design, compact conformation, Expansion pressurization to lacrimal point is uniform, and rate of expansion is fast, and apparatus need not be changed halfway；The tear in lacrimal point is inserted into via expansion jaw Node expansion bolt, can carry out continuation expansion to lacrimal point, and convenient to remove, effectively prevent ISR and the adhesion of lacrimal point, The risk performed the operation repeatedly is avoided, patient suffering is reduced, therapeutic effect is lifted.

Brief description of the drawings

Fig. 1 is a kind of structural representation of the present utility model.

Fig. 2 is the partial enlarged view at A in Fig. 1.

Fig. 3 is the partial enlarged view at B in Fig. 1.

Fig. 4 is a kind of Structure explosion diagram for expanding bolt assembly in Fig. 2.

Fig. 5 is a kind of structural representation for pushing away tightening latch in Fig. 4.

Fig. 6 is a kind of structure sectional view of the lock chamber in Fig. 4.

Fig. 7 is a kind of structure sectional view that lacrimal point in Fig. 4 expands bolt.

Fig. 8 is a kind of structure sectional view after each part assembling in Fig. 4.

Fig. 9 is a kind of structure sectional views of the Fig. 8 along line C-C.

Figure 10 is and a kind of matching used structural representation for taking bolt tweezer of the utility model.

Figure 11 is Figure 10 D direction views.

Figure 12 is Figure 11 E direction views.

Number explanation in figure：1 first expansion caliper, 2 second expansion calipers, 3 necks, 4 expansion jaws, 5 expansion bolt assemblies, 6 connection rotating shafts, 7 second vice bodies, 8 second arc shaped pincers tails, 9 recesses, 10 noses, 11 first arc shaped pincers tails, 12 spacing block sets, 13 One vice body, 14 push away tightening latch, 15 lock chambers, 16 lacrimal points expansion bolt, 17 pole caps, 18 push rods, 19 scales, 20 cavitys, 21 pole perforating holes, 22 Plush copper, 25 flanges, 26 keys, 27 bolt heads, 28 central through holes, 29 fixed grooves, 30 tweezer heads, 31 are fixed in cavity, 23 connecting rods, 24 Tweezer neck, 32 main bodys, 33 tweezer bodies, 34 gripping handles, 35 tweezer tails, 36 intermediate connectors, 37 elastic clips, 38 straight sections, 39 curved segments, 40 Flat lance shape tweezer point, 41 are rigidly connected piece.

Embodiment

Concrete structure of the present utility model is described in detail according to Fig. 1~12.The new lacrimal point extension fixture includes first and expanded The expansion caliper 2 of caliper 1 and second is opened, wherein, the first expansion caliper 1 includes the first vice body 13, and the anterior of the first vice body 13 is set There is neck 3, the front end of neck 3 is provided with the expansion jaw 4 for clamping expansion bolt assembly 5, and the rear portion of the first vice body 13 is set There is the first arc shaped pincers tail 11 of sheet like flexible arcuate structure, the afterbody of the first arc shaped pincers tail 11 is provided with for inserting the second arc Clamp the recess 9 of the afterbody nose 10 of tail 8.Second expansion caliper 2 includes the second vice body 7, and the front portion of the second vice body 7 is provided with neck 3, The front end of neck 3 is again provided with the expansion jaw 4 for clamping expansion bolt assembly 5, and the rear portion of the second vice body 7 is provided with sheet Second arc shaped pincers tail 8 of flexible arc structure, the afterbody of the second arc shaped pincers tail 8 is provided with nose 10.First expansion caliper 1 and the The middle part for the neck 3 that two of two expansion caliper 2 front ends are symmetrically arranged, is connected by connection rotating shaft 6, so that first Expansion caliper 1 is connected with the second expansion caliper 2, and two necks 3 can open or close around connection rotating shaft 6.In order to It is firmly excessive when preventing from operating, it is to avoid both sides expansion jaw 4 transition expansion lacrimal point, the inner side of the first vice body 13 is provided with limit convex Block 12；Correspondingly, it is provided with projection neck at the position corresponding with spacing block set 12 of the inner side of the second vice body 7.In order to increase pincers The outside of body skin-friction force, the first vice body 13 and the second vice body 7 is respectively arranged with anti-slip roller line, keeps the gripping of vice body stable Property.For the purpose for mitigating vice body weight, the inner side of the first vice body 13 and the second vice body 7 is provided with loss of weight hollow structure, so as to In flexible operating.

The front end of two necks 3 of the first expansion expansion caliper 2 of caliper 1 and second, the conical expansion pincers set respectively The axis of mouth 4 and the perpendicular arrangement of caliper neck 3；Two expansion jaws 4 are arranged symmetrically, to form cone hollow cone directed downwardly Shape；It is provided with holding part between two panels expansion jaw 4 for placing the expansion bolt that lacrimal point expands bolt 16 into lacrimal point Component 5.The nose 10 of the afterbody of second 2 second arc shaped pincers tail of expansion caliper 8 extend into the arc shaped pincers tail 11 of the first expansion caliper 1 first In the recess 9 of afterbody；So that in situation about being acted on without external force, two of the first expansion expansion caliper 2 of caliper 1 and second front end expand Opening jaw 4 being capable of tight closure；Also, after the insertion lacrimal point of expansion jaw 4 of closure, it is only necessary to which less strength can make two Individual expansion jaw 4 opens appropriate angle naturally, is easy to lacrimal point to expand, convenient operation.In order to increase during clamping expansion bolt assembly 5 On frictional force, the inwall of two expansion jaws 4 of the first expansion expansion caliper 2 of caliper 1 and second front end, it is respectively arranged with anti-skidding Striped, in order to which lacrimal point expands the placement of bolt 16.

The expansion bolt assembly 5 set between two panels expansion jaw 4 in holding part is made up of the lock chamber 15 of taper, lock chamber 15 top is provided with pushes away tightening latch 14 for being pushed into lacrimal point expansion bolt 16 into lacrimal point, and the bottom of lock chamber 15, which is provided with, to be used for The lacrimal point expansion bolt 16 persistently expanded to lacrimal point.Lock chamber 15 includes the cavity 20 that upper end is disposed with pole perforating hole 21 vertically, fixed The lower end of the cavity 20 of chamber 15 is provided with the cavity 22 that bolt 16 is expanded for housing lacrimal point, and the bottom of pole perforating hole 21 is upper with cavity 22 Portion is connected, so that the end for pushing away the push rod 18 of tightening latch 14 being arranged in the pole perforating hole 21 of lock chamber 15 can expand bolt 16 with lacrimal point It is in contact.The middle part of cavity 22 of the cavity 20 of lock chamber 15 is provided with the connecting rod 23 arranged straight down, the lower end of connecting rod 23 Portion is provided with the fixation plush copper 24 that bolt 16 is expanded for fixing lacrimal point, and fixed plush copper 24 is that upper and lower ends are thin, middle slightly thick ellipse It is circular.What the top of lock chamber 15 was set pushes away tightening latch 14, including downside is disposed with the pole cap 17 of push rod 18 vertically, pushes away the bottom of tightening latch 14 Push rod 18 extend into the pole perforating hole 21 of lock chamber 15, push away the top of tightening latch 14 pole cap 17 be located at lock chamber 15 top.Root Needed according to specifically used, the quantity for pushing away the push rod 18 that the downside of 14 pole cap of tightening latch 17 is set is four, and four push rods 18 are along same One circumference is equally spaced；Correspondingly, the quantity of the pole perforating hole 21 set in the cavity 20 of lock chamber 15 is also four, four bars The position in hole 21 is corresponding with push rod 18；To increase the stability of the position of lock chamber 15, and be conducive to the cavity of lock chamber 15 20 with pushing away the in rotary moving of tightening latch 14.The bottom of each push rod 18 of tightening latch 14 is pushed away, single boss-shaped knot can be designed to Structure or the cyclic structure of interconnection, so that tightening latch 14 will be pushed away and lock chamber 15 connects into an entirety, it is to avoid push away tightening latch 14 Drop, and the contact area that push rod 18 expands bolt 16 with lacrimal point can be increased, lift the stability injected.For the ease of distinguishing tear The insertion depth of node expansion bolt 16, pushes away and mark scale 19 is provided with the push rod 18 of tightening latch 14.

The lacrimal point expansion bolt 16 that the bottom of lock chamber 15 is set is included under the key 26 that upper end is provided with flange 25, key 26 End, which is provided with, is easy to lacrimal point to expand the tapered plug first 27 that bolt 16 is inserted into lacrimal point, the tapered plug that lacrimal point expansion bolt 16 head is expanded First 27 can increase the stability of expansion bolt, and expansion bolt is anchored in lacrimal point and lacrimal, it is to avoid expansion bolt caused by rubbing one's eyes Obscission；Lacrimal point expands the oblate flange 25 of the afterbody of bolt 16, can play a part of preventing expansion bolt from crashing into lacrimal passage.Lacrimal point The middle part of the expansion key 26 of bolt 16 is provided with the central through hole 28 of vertical insertion, and the top of central through hole 28 is provided with for consolidating Determine chamber 15 and fix the fixed groove 29 that plush copper 24 is engaged.The central through hole 28 of lacrimal point expansion bolt 16 can be in expansion bolt indwelling in tear Point during, it is ensured that tear can via central through hole 28, normally flow into lacrimal passage.Lacrimal point expands the central through hole of the key 26 of bolt 16 28 are alternatively arranged as taking bolt tweezer（Supported the use with the new lacrimal point extension fixture）The passage that tweezer first 30 is stretched into；Also, take bolt tweezer tweezer After first 30 open in central through hole 28, in the fixed groove 29 that the setting of the top of central through hole 28 can be embedded into, in order to tear The rotation and taking-up of node expansion bolt 16.In order to ensure biocompatibility, the probability of happening of rejection, lacrimal point expansion bolt 16 are reduced Material can use medical silica-gel, and with enough elasticity and support force.

The top of lacrimal point expansion bolt 16 is arranged in the cavity 22 of the bottom of 15 cavity of lock chamber 20, the lower cavity 22 of cavity 20 Interior connecting rod 23 is extend into the central through hole 28 of lacrimal point expansion bolt 16, and the fixation plush copper 24 of the lower end of connecting rod 23 is connected to In the fixed groove 29 on the top of 16 central through hole of lacrimal point expansion bolt 28.Push away the push rod 18 of tightening latch 14 and extend into the pole perforating hole 21 of lock chamber 15 The bottom of interior one end, the upper surface of flange 25 for expanding the key 26 of bolt 16 with lacrimal point is in contact, to be pushed away by push rod 18 to lacrimal point Enter lacrimal point expansion bolt 16.In order to which during lacrimal point expansion bolt 16 is placed, the He of lock chamber 15 can be driven by pushing away tightening latch 14 Lacrimal point expansion bolt 16 is together rotated, and in order to which lacrimal point expands the implantation of bolt 16, the fixed groove 29 of lacrimal point expansion bolt 16 is designed to Cross section is criss-cross neck；Correspondingly, the shape of cross section for the fixation plush copper 24 that the lower end of 15 cavity of lock chamber 20 is set For cross.The structure type of this cross fixed groove 29 of lacrimal point expansion bolt 16, equally can conveniently take bolt tweezer by tear The operation that node expansion bolt 16 rotates and taken out out of lacrimal point.

With the new lacrimal point extension fixture it is matching used take bolt tweezer include tweezer body 33 and tweezer first 30, tweezer body 33 is by hollow knot The main body 32 of structure is constituted, and the both sides of the main body 32 of tweezer body 33 are respectively arranged with gripping handle 34, and the rear portion of two gripping handles 34 leads to Tweezer tail 35 is crossed to be connected, and two gripping handles 34 are in the shape of the letter V arrangement.The anterior inner side of two gripping handles 34, is set respectively There is an elastic clip 37 for manipulating the flat lance shape tweezer point 40 of first 30 two panels of tweezer, one end of elastic clip 37 is interior with gripping handle 34 Side is connected；The other end of elastic clip 37 then extend into the rear end of hollow structure main body 32, entered inside main body 32, elasticity One end that intermediate plate 37 is stretched into main body 32 then by the piece 41 that is rigidly connected set in tweezer neck 31, is connected with flat lance shape tweezer point 40 Connect.Intermediate connector 36 is provided between anterior main body 32 and the tweezer tail 35 at rear portion.In order to increase the surface of gripping handle 34 Frictional force, the outside of two gripping handles 34 of the arrangement that is in the shape of the letter V, is respectively arranged with anti-slip roller line, to keep the gripping of handle Stability.For the ease of the gripping of finger, support can also be set to refer to structure on two gripping handles 34, to lift what is controlled in art Accuracy.It can be directed to be accustomed to using the gripping of finger during tweezers that support, which refers to structure, be designed in tweezers and finger contact portion position Ergonomics flexibility grips contact block.

The front end of the main body 32 of tweezer body 33 is provided with the thin tube-like tweezer neck 31 being made up of straight section 38 and curved segment 39；Taken to strengthen The entirety of bolt tweezer is handling, and the straight section 38 of the front end tweezer neck 31 of main body 32 and the angle of curved segment 39 are designed to 90~150 degree.Tweezer neck 31 Inside it is provided with the piece 41 that is rigidly connected that two panels is connected with the elastic clip 37 of the front inner of gripping handle 34 respectively, the curved segment of tweezer neck 31 39 end is provided with the tweezer first 30 being made up of the flat lance shape tweezer point 40 of two panels；Flat lance shape tweezer point 40 can use semicircular flat Structure.The rear end of the flat lance shape tweezer point 40 of the two panels piece 41 that is rigidly connected respectively with the two panels in tweezer neck 31 is connected；And pass through two Gripping handle 34 drives elastic clip 37 respectively, thus drive arrangement in tweezer neck 31 two panels be rigidly connected piece 41 close or Open, with the flat lance shape tweezer point 40 of the two panels for manipulating tweezer first 30, the lacrimal point remained in lacrimal point expansion bolt 16 is taken out.For the ease of Judge to be provided with mark scale 19 in the distance stretched into, the curved segment 39 for taking the front end tweezer neck 31 of bolt tweezer main body 32.

The new lacrimal point extension fixture is in use, the first vice body 13 and second for being hold by one hand the first expansion caliper 1 expands Second vice body 7 of caliper 2, the lacrimal point position expanded is needed by the cone alignment that the two panels of closure expands the lower end of jaw 4, allows expansion The cone for opening jaw 4 is inserted downwardly into lacrimal point；Then apply appropriate strength on the first vice body 13 and the second vice body 7, make First vice body 13 and the anterior two panels expansion jaw 4 of the second vice body 7 are separated and come, to be expanded to lacrimal point, to be put into tear Node expansion bolt 16 is prepared.The new lacrimal point extension fixture has abandoned the expansion pattern of conventional vertical plug-in type canaliculus dilator, The horizontal force of jaw 4 is expanded using two panels, uniform pressurization expansion is carried out to lacrimal point, rate of expansion is fast, meets the physiology solution of lacrimal point Cut open structure, it is to avoid Accessory injury, apparatus need not be changed halfway, therapeutic efficiency is high.

Bolt assembly 5 will be expanded to be put into the holding part between two panels expansion jaw 4, expansion bolt assembly 5 is pushed away on tightening latch 14 The pole cap 17 at end is located at the top of expansion jaw 4, in order to be pushed downwardly into lacrimal point expansion bolt 16.The taper for expanding bolt assembly 5 is consolidated Determine the bottom that chamber 15 is located at conical expansion jaw 4, and the wider upper end of lock chamber 15 is anti-skidding on the inwall of jaw 4 with expanding Striped is in contact, and to increase frictional force during clamping expansion 5 lock chamber 15 of bolt assembly, is easy to lacrimal point to expand the pushing away to lacrimal point of bolt 16 Enter.Expand the lacrimal point expansion bolt 16 of the lower end of 5 lock chamber of bolt assembly 15, the bottom cone tip part of expansion jaw 4 opened positioned at two panels.With The another hand of expansion caliper is not gripped, and the tightening latch 14 that pushes away for expanding bolt assembly 5 is slowly pressed；The push rod of tightening latch 14 is pushed away so as to drive 18 one end extending into the pole perforating hole 21 of lock chamber 15, promote the upper surface of the flange 25 of 16 key of lacrimal point expansion bolt 26, by tear Node expansion bolt 16 is pushed into the lacrimal point expanded from the cavity 22 of the bottom of 15 cavity of lock chamber 20 and retained, and lacrimal point is formed and continued Property expansion.Finally, closure first expands the two panels expansion jaw 4 of the expansion caliper 2 of caliper 1 and second front end, will expand jaw 4 Cone is taken out completely from lacrimal point, then removes expansion bolt assembly 5., can be by turning during lacrimal point expansion bolt 16 is placed The dynamic mode for pushing away tightening latch 14, is rotated in lacrimal point together to drive the lacrimal point that lock chamber 15 is set with its underpart to expand bolt 16, with It is easy to lacrimal point to expand inserting for bolt 16.

Lacrimal point expansion bolt 16 can be long-term（3 months or so）Remain in lacrimal point, effectively prevent ISR and the adhesion of lacrimal point, Operation technique repeatedly is avoided, patient suffering is reduced.When the lacrimal point expansion bolt 16 for needing to remain in lacrimal point takes out, one hand is held The gripping handle 34 for taking the both sides of 33 main body of bolt tweezer tweezer body 32 is handled, two elastic clips are driven respectively by two gripping handles 34 37, closed the two panels that drives arrangement in tweezer neck 31 piece 41 that is rigidly connected, so that the flat lance shape tweezer point 40 of the two panels for manipulating tweezer first 30 Closure.In the central through hole 28 that the tweezer for taking bolt tweezer first 30 is extend into the lacrimal point of the retention expansion key 26 of bolt 16, when the two of closure When the flat lance shape tweezer point 40 of piece is in the position of fixed groove 29 in central through hole 28, by two bands of gripping handle 34 for taking bolt tweezer The dynamic flat lance shape tweezer point 40 of two panels opens, and the flat lance shape tweezer point 40 opened is expanded the cross card of the fixed groove 29 of bolt 16 with lacrimal point Groove phase clamping, so that lacrimal point expansion bolt 16 be taken out, completes treatment.

, it is understood that lacrimal point expand bolt 16 during indwelling in lacrimal point, can by new lacrimal point extension fixture with Using cooperatively for bolt tweezer is taken, in the cross fixed groove 29 that the tweezer for taking bolt tweezer first 30 is inserted into lacrimal point expansion bolt 16；Rotation Take bolt tweezer and rotated to drive the lacrimal point of retention to expand bolt 16, to avoid lacrimal point from expanding bolt 16 and lacrimal point adhesion, it is ensured that therapeutic effect. According to specific use demand, the different components of the device also can be used alone.

Claims (10)

1. a kind of new lacrimal point extension fixture, including the first expansion caliper（1）With the second expansion caliper（2）, it is characterised in that：Institute State the first expansion caliper（1）Including the first vice body（13）, the first vice body（13）Front portion be provided with neck（3）, the first vice body （13）Rear portion be provided with the first arc shaped pincers tail（11）, the first arc shaped pincers tail（11）Afterbody be provided with recess（9）；Described second Expand caliper（2）Including the second vice body（7）, the second vice body（7）Front portion be provided with neck（3）, the second vice body（7）Rear portion set It is equipped with the second arc shaped pincers tail（8）, the second arc shaped pincers tail（8）Afterbody be provided with nose（10）；First expansion caliper（1）With second Expand caliper（2）Two necks of front end（3）It is symmetrically arranged, two necks（3）Middle part pass through connection rotating shaft（6）Phase Even；Two necks（3）Front end be respectively arranged with the expansion jaw of taper（4）, expand jaw（4）Axis and neck（3）Phase Vertically, two expansion jaws（4）It is arranged symmetrically to form cone hollow cone shape directed downwardly；Two panels expands jaw（4）Between Holding part in be provided with expansion bolt assembly（5）；Second expansion caliper（2）Second arc shaped pincers tail（8）The nose of afterbody（10）Stretch Enter to the first expansion caliper（1）First arc shaped pincers tail（11）The recess of afterbody（9）It is interior；The expansion bolt assembly（5）Including taper Lock chamber（15）, lock chamber（15）Top be provided with and push away tightening latch（14）, lock chamber（15）Bottom be provided with lacrimal point expansion Bolt（16）；The lock chamber（15）Including cavity（20）, cavity（20）Upper end be provided with the pole perforating hole arranged vertically（21）, chamber Body（20）Lower end be provided with cavity（22）, pole perforating hole（21）Bottom and cavity（22）Top be connected；Cavity（20）It is empty Chamber（22）Middle part be provided with the connecting rod arranged vertically（23）, connecting rod（23）Bottom be provided with fixed plush copper（24）； It is described to push away tightening latch（14）Including pole cap（17）, pole cap（17）Downside be provided with the push rod arranged vertically（18）, push rod（18）Stretch Enter to lock chamber（15）Pole perforating hole（21）It is interior；The lacrimal point expands bolt（16）Including key（26）, key（26）Upper end set It is equipped with flange（25）, key（26）Lower end be provided with tapered plug head（27）, key（26）Middle part be provided with central through hole （28）, central through hole（28）Top be provided with fixed groove（29）；Lacrimal point expands bolt（16）Top be arranged in lock chamber （15）The cavity of bottom（22）It is interior, lock chamber（15）Cavity（22）Interior connecting rod（23）It extend into lacrimal point expansion bolt（16）In Heart through hole（28）It is interior, connecting rod（23）The fixation plush copper of lower end（24）It is connected to central through hole（28）The fixed groove on top（29） It is interior；Push away tightening latch（14）Push rod（18）Bottom and lacrimal point expand bolt（16）Flange（25）Upper surface be in contact.

2. new lacrimal point extension fixture according to claim 1, it is characterised in that：The lacrimal point expands bolt（16）Fixation Groove（29）For cross neck；Correspondingly, lock chamber（15）Cavity（20）The fixation plush copper that lower end is set（24）Cross section It is shaped as cross.

3. new lacrimal point extension fixture according to claim 1, it is characterised in that：The first expansion caliper（1）First Arc shaped pincers tail（11）With the second expansion caliper（2）Second arc shaped pincers tail（8）, it is the flexible arc structure of sheet.

4. new lacrimal point extension fixture according to claim 1, it is characterised in that：The first expansion caliper（1）With Two expansion calipers（2）Two expansion jaws of front end（4）Inwall on, be respectively arranged with skid resistance strip.

5. new lacrimal point extension fixture according to claim 1, it is characterised in that：It is described to push away tightening latch（14）Push rod（18） On be provided with scale（19）.

6. new lacrimal point extension fixture according to claim 1, it is characterised in that：First vice body（13）Or second pincers Body（7）Inner side be provided with spacing block set（12）.

7. new lacrimal point extension fixture according to claim 1, it is characterised in that：First vice body（13）With the second pincers Body（7）Outside be respectively arranged with anti-slip roller line.

8. matching used take bolt tweezer, including tweezer body with the new lacrimal point extension fixture described in claim 1（33）With tweezer head （30）, it is characterised in that：The tweezer body（33）Including main body（32）, main body（32）For hollow structure, main body（32）Both sides point Gripping handle is not provided with it（34）, two gripping handles（34）Be in the shape of the letter V arrangement, two gripping handles（34）Rear portion pass through tweezer Tail（35）It is connected；Two gripping handles（34）Anterior inner side is respectively arranged with elastic clip（37）, elastic clip（37）One End and gripping handle（34）Inner side is connected, elastic clip（37）The other end extend into hollow structure main body（32）Rearward end It is interior；Anterior main body（32）With the tweezer tail at rear portion（35）Between be provided with intermediate connector（36）；Main body（32）Front end set There is tweezer neck（31）, tweezer neck（31）It is by straight section（38）And curved segment（39）The tubular structure of composition, tweezer neck（31）Inside it is provided with two panels Be rigidly connected piece（41）, tweezer neck（31）Curved segment（39）End be provided with tweezer head（30）, tweezer head（30）By the flat lance shape tweezer point of two panels （40）Constitute, flat lance shape tweezer point（40）For semicircular flat structure；The flat lance shape tweezer point of two panels（40）Rear end, respectively by firm Property connection sheet（41）With two elastic clips（37）It extend into main body（32）Interior end is connected.

9. according to claim 8 take bolt tweezer, it is characterised in that：The main body（32）Front end tweezer neck（31）Straight section（38） And curved segment（39）Angle be 90~150 degree.

10. according to claim 8 take bolt tweezer, it is characterised in that：The main body（32）Front end tweezer neck（31）Curved segment （39）On be provided with scale（19）.