CN208598465U - A kind of hook recyclable device of visual controllable intracanal scaffold - Google Patents

Abstract

The utility model relates to the field of medical instrument technology, in particular to a kind of hook recyclable device of visual controllable intracanal scaffold；The utility model includes fixed sleeving, hook folding and unfolding pipe and hook pipe；The front end of hook pipe is provided with the hook for hooking bracket, and the end for linking up with pipe is connected with hook promotion ring, links up with and is provided on folding and unfolding pipe for pushing hook that ring is pushed to make the promotion retaining ring for linking up with pipe forward movement；In the present invention, push hook folding and unfolding pipe, make that retaining ring is pushed to withstand hook promotion ring, with the movement of hook folding and unfolding pipe, push retaining ring that hook is pushed to push ring mobile, it is moved to make to link up with hook via hole of the pipe on fixed sleeving, so that the hook for linking up with pipe front end be made to hook bracket, bracket is made to pull out cavity；The utility model is easy to operate, easily hooks bracket, and bracket is made to be not easy to loosen and facilitate recycling.

Description

A kind of hook recyclable device of visual controllable intracanal scaffold

Technical field

The utility model relates to the field of medical instrument technology, in particular to a kind of hook of visual controllable intracanal scaffold Recyclable device.

Background technique

Foley's tube technology has been increasingly used in various vascular diseases in recent years, such as arterial embolism, arteriarctia Deng, balloon expandable and take bolt technology gradually mature, but such foley's tube can not be guided by seal wire, for tortuous blood vessel, The operating difficulties such as pathologic stenosis blood vessel.

With the exploitation of two tire policies, the incidence of puerpera's placental presentation and placenta merging is in rapid increase, especially act of violence Dangerous type placental presentation, average bleeding is up to 3000~5000 ml, even as high as 10000 in natural production or cesarean section Ml or more, a large amount of swift and violent bleedings seriously threaten puerpera and baby's life security in the short time.The past placental abnormality cesarean postoperate Uterus is cut off for hemostasis, average blood loss still reaches for 4000~5000ml in art.It is moved in preventative abdominal aorta, preventative ilium Application of the arteries and veins Balloon Occlusion art in placental abnormality case, no matter the operation or uterectomy of row Reservations uterus, it is defeated in art Blood volume significantly reduces, and puerpera is guaranteed with baby safe.Prophylactic use abdominal aorta before natural production or cesarean section Blood flow or common iliac artery blood flow sacculus Basilar artery technology are compared with conventional Cesarean esction, find preventative interim abdominal aorta Or common iliac artery bloodstream blocking technology can greatly reduce the intraoperative blood loss, transfusion volume and related complication of patient.But current ball Capsule is conventional high voltage bearing non-compliance dilating sacculus, is had a single function, and have the following deficiencies: 1, high voltage bearing non-compliance ball Capsule material is harder, during expansion, there is the risk that tearing damage is generated to vascular wall；2, high voltage bearing non-compliance ball Capsule material is harder, balloon features be it is invariable cylindric, the adaptation intravascular space shape of compliance is unable to, in the mistake of expansion Cheng Zhong, there are the risks of vascular wall tearing damage；3, the high voltage bearing adequately expanded diameter of non-compliance sacculus is fixed, it is difficult to good Abdominal aorta diameter, the common iliac artery diameter for adapting to individuation variation well, there are balloon diameter vascular flow blockings less than normal not exclusively, The potential risk of balloon diameter tearing vascular wall bigger than normal；4, during balloon expandable process, can not judge to block blood vessel proximal part Blood pressure and blood flow velocity exist and block incomplete situation；5, non-compliance sacculus is exiting internal iliac artery, arteria iliaca externa, stock When arteriopuncture access, not exclusively due to the harder retraction of sacculus material, sacculus generates serious damage, secondary vascular bolt to vascular wall The risk of plug and hemadostewnosis is stepped up, and therefore, in order to solve this problem, generally can first be placed bracket in cavity and be protected Cavity is protected, then is guided by seal wire；However, bracket is placed into cavity, it is not easily recycled.

Summary of the invention

Described above in order to overcome the shortcomings of, the purpose of the utility model is to provide a kind of visual controllable intracanal scaffolds Hook recyclable device, by pushing retaining ring that hook is pushed to push ring mobile, to make to link up with extension of the pipe on fixed sleeving Hook via hole is moved, so that the hook for linking up with pipe front end be made to hook bracket, bracket is made to pull out cavity.

The technical scheme in the invention for solving the technical problem is:

A kind of hook recyclable device of visual controllable intracanal scaffold, is used to hook up the branch in body cavities Frame, wherein including fixed sleeving, the hook folding and unfolding pipe being socketed in the fixed sleeving and be socketed in and be set to the fixing sleeve The hook pipe in hook via hole on pipe；The front end of the hook pipe is provided with the hook for hooking bracket, the hook pipe End be connected with hook and push ring, be provided on the hook folding and unfolding pipe for pushing the hook promotion ring to make the hook The promotion retaining ring that pipe moves forward.

It further include sheath for entangling bracket and for keeping the sheath mobile as a kind of improvement of the utility model Hand push mechanism, the fixed sleeving is socketed in the sheath.

It as a further improvement of the utility model, further include the gathering pipe being socketed in the sheath, the fixing sleeve Pipe is socketed in the gathering pipe, and the hand push mechanism can also make the gathering pipe mobile.

As the further improvement of the utility model, the front end of the hook folding and unfolding pipe is provided with hook and props up disk, institute State hook prop up be provided on disk for it is described hook across hook prop up hole.

As the further improvement of the utility model, the hook pushes and is provided with circular hole, the fixed sleeving on ring End be provided with the expansible stopper for being inserted into the circular hole.

As the further improvement of the utility model, check ring and spring, the bullet are provided on the hook pipe Spring is in the check ring and the hook pushes between ring.

As the further improvement of the utility model, the front end for collapsing pipe is provided with flexible bracket and closes up Piece, the front end of the fixed sleeving are provided with the protrusion for closing up piece for jacking up the bracket.

As the further improvement of the utility model, the first external spiral striped, the hand push are provided in the sheath Mechanism includes the first handwheel for being threadedly coupled with the first external spiral striped.

As the further improvement of the utility model, the second external spiral striped, the hand are provided on the gathering pipe Pushing mechanism further includes the second handwheel for being threadedly coupled with the second external spiral striped.

As the further improvement of the utility model, the hand push mechanism further includes handle and connect with the handle Fixed lasso, the first limit stop ring, the second limit stop ring；The fixing sleeve circle is socketed on the fixed sleeving, and described first Limit stop ring and the second limit stop ring are socketed in the sheath respectively and collapse on pipe, and first handwheel is in two described the Between one limit stop ring, second handwheel is between two second limit stop rings.

In the present invention, hook folding and unfolding pipe is pushed, makes that retaining ring is pushed to withstand hook promotion ring, with hook folding and unfolding pipe Movement, push retaining ring that hook is pushed to push ring mobile, moved to make to link up with hook via hole of the pipe on fixed sleeving It is dynamic, so that the hook for linking up with pipe front end be made to hook bracket, bracket is made to pull out cavity；The utility model is easy to operate, easily hooks branch Frame makes bracket be not easy to loosen and facilitate recycling.

Detailed description of the invention

The utility model is described in detail by following preferred embodiments and attached drawing for ease of explanation,.

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the main view of Fig. 1 of the utility model；

Fig. 3 is the structural schematic diagram of the sheath of the utility model；

Fig. 4 is the structural schematic diagram of the front end of the gathering pipe of the utility model；

Fig. 5 is that bracket closes up the structural schematic diagram that piece diverging is opened in Fig. 4 of the utility model；

Fig. 6 is the structural schematic diagram of the spiral tightening ring of the utility model；

Fig. 7 is the cross-sectional view of the fixed sleeving of the utility model；

Fig. 8 is the rear end of the fixed sleeving of the utility model and the attachment structure schematic diagram of hook pipe, hook folding and unfolding pipe；

Fig. 9 is the main view of Fig. 8；

Figure 10 is the structural schematic diagram of the rear end of the fixed sleeving of the utility model；

Figure 11 is that the hook of the utility model pushes the motion state diagram one of ring；

Figure 12 is that the hook of the utility model pushes the motion state diagram two of ring；

Figure 13 is the hand push mechanism and sheath, the attachment structure schematic diagram for collapsing pipe, fixed sleeving of the utility model；

Figure 14 is the structural schematic diagram of the hand push mechanism of the utility model；

Figure 15 is the structural schematic diagram of the hook of the utility model；

Figure 16 is the structural schematic diagram of the action state one of the utility model；

Figure 17 is the main view of Figure 16；

Figure 18 is the structural schematic diagram of the action state two of the utility model；

Figure 19 is the main view of Figure 18；

Figure 20 is the structural schematic diagram of the action state three of the utility model；

Figure 21 is the main view of Figure 20；

Figure 22 is the structural schematic diagram of the action state four of the utility model；

Figure 23 is the main view of Figure 22；

Figure 24 is the structural schematic diagram of the action state five of the utility model；

Figure 25 is the main view of Figure 24；

Figure 26 is the structural schematic diagram of the action state six of the utility model；

Figure 27 is the main view of Figure 26；

Appended drawing reference: 1- sheath, 11- the first external spiral striped, 12- guide groove, 2- collapse pipe, and 21- bracket closes up piece, 22- the second external spiral striped, the outer elongated slot of 23-, elongated slot in 24-, 25- spiral tightening ring, 3- fixed sleeving, 31- link up with via hole, 32- expansible stopper, 33- protrusion, 4- link up with folding and unfolding pipe, and 41- pushes retaining ring, and 42-, which is linked up with, props up disk, 43- promotion end, 44- seal wire, 45- hook props up hole, and 46- retaining ring, 47- arc surfaced tube, 5- hook pipe, 51- hook, 52-, which is linked up with, pushes ring, 53- check ring, 54- spring, 55- ball, 56- circular hole, 6- hand push mechanism, the first handwheel of 61-, the second handwheel of 62-, 63- handle, 64- fixing sleeve Circle, the first limit stop ring of 65-, the second limit stop ring of 66-, 67- guide pad.

Specific embodiment

In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain The utility model is not used to limit the utility model.

It should be noted that in the absence of conflict, the feature in the embodiments of the present invention and embodiment can To be combined with each other.

In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower", The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, rather than indicate Or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot understand For limitations of the present invention.In addition, term " first ", " second " etc. are used for description purposes only, and should not be understood as indicating Or it implies relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " second " etc. are defined as a result, Feature can explicitly or implicitly include one or more of the features.It is in the description of the present invention, unless another It is described, the meaning of " plurality " is two or more.

In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary, It can be the connection inside two elements.For the ordinary skill in the art, on being understood by concrete condition State the concrete meaning of term in the present invention.

As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, Fig. 7, Fig. 8, Fig. 9, Figure 10, Figure 11, Figure 12, Figure 13, Figure 14 and Figure 15, A kind of hook recyclable device of visual controllable intracanal scaffold of the utility model, is used to hook up in body cavities Bracket 7 comprising fixed sleeving 3, the hook folding and unfolding pipe 4 being socketed in fixed sleeving 3 and being socketed in is set on fixed sleeving 3 Hook via hole 31 in hook pipe 5.

The front end of hook pipe 5 is provided with the hook 51 for hooking bracket 7, and the end of hook pipe 5 is connected with hook and pushes Ring 52 is linked up with and is provided on folding and unfolding pipe 4 for pushing hook that ring 52 is pushed to make to link up with the mobile promotion retaining ring 41 of pipe 5.

In the present invention, hook folding and unfolding pipe 4 is pushed, makes that retaining ring 41 is pushed to withstand hook promotion ring 52, with hook The movement of folding and unfolding pipe 4 pushes retaining ring 41 that hook is pushed to push ring 52 mobile, to make to link up with extension of the pipe 5 on fixed sleeving 3 Hook via hole 31 is moved, so that the hook for linking up with 5 front end of pipe be made to hook bracket 7, bracket 7 is made to pull out cavity.

Further, a kind of hook recyclable device of visual controllable intracanal scaffold of the utility model further includes for covering Firmly the sheath 1 of bracket 7 and the hand push mechanism 6 for keeping sheath 1 mobile, fixed sleeving 3 are socketed in sheath 1；The front end of sheath 1 In horn-like, bracket 7 is conveniently entangled.

Further, a kind of hook recyclable device of visual controllable intracanal scaffold of the utility model further includes socket Gathering pipe 2 in sheath 1, fixed sleeving 3, which is socketed in, to be collapsed in pipe 2, and hand push mechanism 6 can also make to collapse the movement of pipe 2.

In the present invention, the front end for linking up with folding and unfolding pipe 4 is provided with hook and props up disk 42, and hook is propped up to be arranged on disk 42 Have and prop up hole 45 for linking up with the hook that 51 pass through, hook 51 is facilitated to tilt.

In the present invention, hook pushes and is provided with circular hole 56 on ring 52, and the end of fixed sleeving 3 is provided with for inserting Enter the expansible stopper 32 of circular hole 56；Expansible stopper 32 is designed from top to middle lower end position for jag, under no external force, expansible stopper 32 front end bifurcateds are in and part open state a little, when being conveniently caught in circular hole, open to clamping circular hole 56.

Bracket 7 is hooked in order to facilitate hook 51, is not easy to loosen, links up with and is provided with check ring 53 and spring 54, bullet on pipe 5 Spring 54 is in check ring 53 and hook pushes between ring 52.

Bracket 7 is collected for convenience, and the front end for collapsing pipe 2 is provided with flexible bracket and closes up piece 21, fixed sleeving 3 Front end be provided with the protrusion 33 for closing up piece 21 for jacking up bracket.

In order to facilitate mobile sheath 1, it is provided with the first external spiral striped 11 in sheath 1, hand push mechanism 6 includes for the The first handwheel 61 that one external spiral striped 11 is threadedly coupled；It collapses and is provided with the second external spiral striped 22, hand push machine on pipe 2 Structure 6 further includes the second handwheel 62 for being threadedly coupled with the second external spiral striped 22.

As shown in figure 14, hand push mechanism 6 further includes handle 63 and the fixation lasso 64 connecting with handle 63, the first limiting block Enclose the 65, second limit stop ring 66；Fixed lasso 64 is socketed on fixed sleeving 3, the first limit stop ring 65 and the second limit stop ring 66 are socketed in sheath 1 respectively and collapse on pipe 2, and the first handwheel 61 is between two the first limit stop rings 65, the second handwheel 62 Between two the second limit stop rings 66.

In the present invention, it is provided with guide groove 12 on the first external spiral striped 11 and the second external spiral striped 22, The guide pad 67 for sliding in guide groove 12 is provided in first limit stop ring 65, the second limit stop ring 66.

In the present invention, the shape for linking up with 51 is in triangular form, it is preferable that and the shape for linking up with 51 is in pure angle triangular form, The end of hook 51 is provided with ball 55, and ball 55 and hook pipe 5 have the gap for being caught in bracket 7.

In the present invention, bracket, which closes up on the outer wall of piece 21, is provided with outer elongated slot 23, is provided with spiral shell on outer elongated slot 23 Revolve tightening ring 25；Bracket, which closes up on the inner wall of piece 21, is provided with interior elongated slot 24, interior elongated slot 24 for playing the guiding role to hook 51, When the diverging of hook 51 extends out, 24 direction of interior elongated slot that hook 51 can close up 21 inner wall of piece along bracket is extended out forward, makes to link up with 51 the case where when angle becomes larger and dissipates being not in offset.

The rear end of hook folding and unfolding pipe 4 is provided with the promotion end 43 for hand push, pushes end 43 by two 46 Hes of retaining ring One arc surfaced tube 47 forms；In hook folding and unfolding pipe 4 traction hand can be carried out using seal wire 44 to facilitate with guiding guide wires therein 44 Art.

The utility model provides one embodiment:

The outermost end of the embodiment is sheath 1, and the centre of sheath 1 is cannula structure, and 1 front end of sheath is dissipated in horn mouth Shape, effect are easy for carrying out covering to bracket 7 being taken into the recycling of sheath 1, and 1 front end marginal position of sheath is rounded corner design, is prevented When only entering internal, 1 front edge of sheath has scratch to lumen wall, is cased with inside sheath 1 and collapses pipe 2, collapses the centre of pipe 2 For cannula structure, front end be can even circumferential distribution the bracket that designs of three or three or more flexible arc-shaped flakies Close up piece 21, and bracket closes up piece 21 inner wall is gradually by Bao Bianhou backward from front edge, when the bracket of 2 front end of gathering pipe closes up When piece 21 is in no external force, bracket closes up 21 flare divergent shape of piece, and bracket closes up on the middle position of 21 outer wall of piece It is provided with the outer elongated slot 23 of circumference type, spiral tightening ring 25 is cased with inside outer elongated slot 23, spiral tightening ring 25 is to 2 front end of gathering pipe Bracket closes up piece 21 and plays tightening, so that bracket closes up the shape that holding level is tightened in sheath 1 when not jacked up of piece 21 State collapses and is cased with fixed sleeving 3 inside pipe 2, and 3 front end outer wall of fixed sleeving is designed as one section of wavy protrusion of smooth surface 33,3 inside front and back of fixed sleeving runs through hollow, and has thicker wall thickness, fixed sleeving 3 between 3 inner wall of fixed sleeving and outer wall There are three even circumferential is distributed in tube wall or three with upper hook via hole 31, links up with the quantity of via hole 31 and collapses 2 front end of pipe The quantity that bracket closes up piece 21 is identical, and the hook via hole 31 inside fixed sleeving 3 and bracket close up one a pair of position of piece 21 It answers, is slightly larger than the outer diameter of hook pipe 5 in each hook via hole 31 through the aperture for having hook pipe 5, and linking up with via hole 31, it is fixed Hook folding and unfolding pipe 4 is cased with inside casing 3, hook 4 front end of folding and unfolding pipe is coaxially fixedly installed outer diameter and is much larger than outside hook folding and unfolding pipe 4 The hook of diameter props up disk 42, and hook props up the hook that even circumferential on disk 42 is distributed with as hook 31 number of via hole and props up hole 45, hook pipe 5 continues across hook after hook via hole 31 and props up hole 45, and hook props up hole 45 and 3 axis of fixed sleeving Linear distance is greater than hook via hole 31 at a distance from 3 axis of fixed sleeving, so that propping up hole 45 with hook passing through hook via hole 31 Between the angled state raised of hook pipe 5, when link up with via hole 31 and hook prop up hole 45 apart from it is remoter when, hook pipe 5 it Between dispersion angle it is smaller, hook via hole 31 and hook prop up hole 43 it is closer when, link up with pipe 5 between dispersion angle it is bigger, raise It is bigger to play angle, and links up with 4 front end of folding and unfolding pipe hook and props up the hook on disk 42 and prop up the angle in hole 43 also at raising divergence form Distribution, for hook 5 Front-end Design of pipe at hook 51, hook 51 is designed to the triangular shape from outer laterally inner side bending, and triangular shape The angle for linking up with end is obtuse angle, convenient that success rate can be greatly increased during hook takes bracket 7, and is catching on branch The design at obtuse angle is so that bracket 7 is difficult to fall off inside hook 51, and links up with 51 from starting bending part to triangle bending after frame 7 Pipe 5 is linked up with during end in being gradually reduced, so that hook 51 is not in can not be by the net of bracket 7 when hooking and taking bracket 7 The case where hole, 51 ends of hook are wholely set the slightly larger ball 55 with 51 end diameters of hook of outer diameter, to further prevent Only bracket 7 falls off, and the direction that hook 51 is uniformly distributed on circumference is the normal plane outside for linking up with 51 corresponding circumferential positions Upwards, convenient for hooking the bracket 7 taken on its corresponding position, it is every that the bracket of the hook 51 and periphery that are distributed on circumference closes up piece 21 A all to correspond, each hook 51 corresponds to the middle position that its outrigger closes up piece 21, and bracket closes up in 21 inner wall of piece Between on position design have interior elongated slot 24,24 pairs of interior elongated slot hooks 51 play the guiding role, and when the diverging of hook 51 extends out, link up with 51 energy It is extended out forward along 24 direction of interior elongated slot that bracket closes up 21 inner wall of piece, makes the hook 51 be not in when angle becomes larger and dissipates The case where offset；Design has the first external spiral striped 11 on 1 back-end region outer wall of sheath, and 11 periphery of the first external spiral striped is cased with First handwheel 61,61 inner wall of the first handwheel are cased with internal screw thread, are to be threadedly coupled with the first external spiral striped 11, outside the first handwheel 61 It is provided with annular knurl on wall, increases friction when rolling the first handwheel 61 convenient for finger, 61 rear and front end of the first handwheel is respectively set There is the first limit stop ring 65, being integrally designed on two 65 lower end inner walls of the first limit stop ring has guide pad 67, and the first of sheath 1 The position that 11 region of external spiral striped corresponds to guide pad 67 is axially provided with guide groove 12, and guide groove 12 runs through the first external spiral item 11 region of line, guide pad 67 and 12 guiding role of guide groove make when rotating the first handwheel 61, cooperate being threadedly coupled Under, sheath 1 can moving axially without rotation, collapse 2 rear end length of pipe and be longer than sheath 1, collapse 2 rear end outer wall one of pipe It is provided with the second external spiral striped 22,22 periphery of the second external spiral striped is cased with the second handwheel 62, and 62 inner wall of the second handwheel is cased with Internal screw thread is to be threadedly coupled with the second external spiral striped 22, is provided with annular knurl on 62 outer wall of the second handwheel, is rolling convenient for finger Increase friction when the second handwheel 62,62 rear and front end of the second handwheel is respectively arranged with the second limit stop ring 66, two second limits Integrated design has guide pad 67 on 66 lower end inner wall of retaining ring, and 22 region of the second external spiral striped for collapsing pipe 2 corresponds to guide pad 67 position is axially provided with guide groove 12, and guide groove 12 runs through 22 region of the second external spiral striped, 61 both ends of the first handwheel Second limit stop ring 66 at 62 both ends of the first limit stop ring 65 and the second handwheel is both secured to handle 63, and 3 rear end of fixed sleeving is long Degree, which is longer than, collapses pipe 2, and 3 rear end of fixed sleeving has been fixedly and coaxially connected fixed sleeving 3 on exposing the region outer wall for collapsing pipe 2, Fixed sleeving 3 is fixedly connected in the structure of handle 63, and 31 interval of hook via hole of 3 rear end tube wall end face of fixed sleeving is symmetrical It is fixedly connected with expansible stopper 32,32 tip designs of expansible stopper are cambered surface cap shaped, and the outer diameter of cambered surface cap is greater than outside 32 bar of expansible stopper Diameter, expansible stopper 32 is designed from top to middle lower end position for jag, and under no external force, 32 front end bifurcated of expansible stopper is in micro- Open configuration, 3 rear end of fixed sleeving hook via hole 31 are extended with hook pipe 5, and hook 5 end of pipe, which passes through, has hook to push ring 52, Check ring 53 is coaxially fixedly installed on the hook pipe 5 at hook promotion 52 both ends of ring, check ring 53 and hook push ring Spring 54 is cased on hook pipe 5 between 52, hook pushes two springs 54 on the hook pipe 5 of every, 52 both ends of ring that can make to hang Hook 51 can carry out active fine tuning when hook takes bracket 7, and every hook 51 can be when actually hook takes spring 54 Be finely adjusted according to practical situation so as to hook the success rate taken bigger, as much as possible avoid it is therein some link up with 51 The case where breaking off relations, hook push ring 52 to be provided with circular hole 56 on the axial corresponding position of 3 front end expansible stopper of fixed sleeving 32, 56 aperture of circular hole is less than the outer diameter of 32 cambered surface cap of expansible stopper slightly larger than the outer diameter of expansible stopper 32, so that when hook pushes ring 52 forward After mobile and expansible stopper 32 passes through the circular hole 56 that hook pushes ring 52, in the swelling effect of expansible stopper 32 and the effect of cambered surface cap Under, hook pushes ring 52 that can not be detached from the expansible stopper 32 of fixed sleeving 3, and the length of hook 4 rear end of folding and unfolding pipe, which is longer than, links up with pipe 5, Hook 4 end of folding and unfolding pipe is wholely set by the push-and-pull end 43 being made of two retaining rings 46 and an arc surfaced tube 47, for manual Push-and-pull control hook folding and unfolding pipe 4 carries out axial back-and-forth motion, and push-and-pull end 43 is coaxial on the hook folding and unfolding pipe 4 on front position It is fixedly installed and pushes retaining ring 41, push the position of retaining ring 41 to be located at the rearward position that hook pushes ring 52, for linking up with folding and unfolding Hook is driven to push ring 52 is synchronous to move forward when pipe 4 moves axially forward, so that hook pipe 5 and hook folding and unfolding pipe 4 synchronize it is moved axially forward.

In this embodiment, hook 5 Front-end Design of pipe is designed to three from outer laterally inner side bending at hook 51, hook 51 Horn shape, and the angle of triangular shape hook end is obtuse angle, it is convenient to increase success during hook takes bracket 7 Rate, and after catching on bracket 7 obtuse angle design so that bracket 7 is difficult to fall off inside hook 51, and links up with 51 from starting Pipe is linked up with during bending part to triangle bending end in being gradually reduced, so that hook 51 is not in nothing when hook takes bracket 7 Method passes through the case where mesh of bracket 7, and 51 ends of hook are wholely set the slightly larger ball 55 with hook end diameter of outer diameter, from And further prevent falling off for bracket 7.

In this embodiment, collapse pipe 2 centre be cannula structure, front end be can even circumferential distribution three or three The bracket of a above flexible arc-shaped flaky design closes up piece 21, and bracket close up piece 21 from front edge backward inner wall by Gradually by Bao Bianhou, when the bracket for collapsing 2 front end of pipe closes up piece 21 in no external force, bracket closes up 21 flare of piece hair Bulk, bracket close up the outer elongated slot 23 that circumference type is provided on the middle position of 21 outer wall of piece.

In this embodiment, hook 4 front end of folding and unfolding pipe is coaxially fixedly installed outer diameter much larger than hook 4 outer diameter of folding and unfolding pipe Hook props up disk 42, and hook props up the hook that even circumferential on disk 42 is distributed with as hook 31 number of via hole and props up hole 45, Hook pipe 5, which passes through, to be continued across hook after hook via hole 31 and props up hole 45, and hook prop up hole 45 and 3 axis of fixed sleeving away from From hook via hole 31 is greater than at a distance from 3 axis of fixed sleeving, so that being propped up hole 45 across hook via hole 31 and hook The angled state raised of hook pipe 5, when link up with via hole 31 and hook prop up hole 45 apart from it is remoter when, link up between pipe 5 Dispersion angle is smaller, hook via hole 31 and hook prop up hole 45 it is closer when, link up with pipe 5 between dispersion angle it is bigger, raise angle It spends bigger, and links up with 4 front end of folding and unfolding pipe hook and prop up the hook on disk 43 and prop up the angle in hole 45 and be also distributed at raising divergence form.

In this embodiment, bracket, which closes up inside the outer elongated slot 23 of piece 21, is cased with spiral tightening ring 25, spiral tightening ring 25 Piece 21 is closed up to the bracket for collapsing 2 front end of pipe and plays tightening, so that bracket closes up piece 21 and protects in sheath 1 when not jacked up The state of the flat tightening of water holding.

In this embodiment, 1 front end of sheath is in horn mouth divergent shape, and effect is easy for carrying out covering to bracket 7 being taken into sheath 1 Recycling, 1 front end marginal position of sheath be rounded corner design, prevent enter it is internal when 1 front edge of sheath in lumen Wall has scratch.

In this embodiment, 3 front end outer wall of fixed sleeving is designed as one section of smooth surface wavy raised 33, fixing sleeve 3 inside front and back of pipe runs through hollow, and has thicker wall thickness between 3 inner wall of fixed sleeving and outer wall, circumference in 3 tube wall of fixed sleeving There are three being uniformly distributed or three with upper hook via hole 31, and the quantity for linking up with via hole 31 and the bracket for collapsing 2 front end of pipe close up piece 21 quantity is identical, and the hook via hole 31 inside fixed sleeving 3 and bracket close up the position one-to-one correspondence of piece 21, each hook It is slightly larger than the outer diameter of hook pipe 5 in via hole 31 through the aperture for having hook pipe 5, and linking up with via hole 31.

In this embodiment, design has the first external spiral striped 11, the first external spiral striped on 1 back-end region outer wall of sheath 11 peripheries are cased with the first handwheel 61, and 61 inner wall of the first handwheel is cased with internal screw thread, are to be threadedly coupled with the first external spiral striped 11, the It is provided with annular knurl on one handwheel, 61 outer wall, increases friction, 61 front and back two of the first handwheel when rolling the first handwheel 61 convenient for finger End is respectively arranged with the first limit stop ring 65, and integrated design has guide pad 67 on two 65 lower end inner walls of the first limit stop ring, The position that 11 region of the first external spiral striped of sheath 1 corresponds to guide pad 67 is axially provided with guide groove 12, and guide groove 12 runs through First external spiral striped, 11 region collapses 2 rear end of pipe and uses identical structure.

In this embodiment, hook via hole interval in 3 rear end tube wall end face of fixed sleeving is symmetrically fixedly connected with expansible stopper 32,32 tip designs of expansible stopper are cambered surface cap shaped, and the outer diameter of cambered surface cap is greater than 32 bar outer diameter of expansible stopper, and expansible stopper 32 is from top It is designed to middle lower end position for jag, under no external force, 32 front end bifurcated of expansible stopper is in and parts open state a little.

In this embodiment, hook 5 end of pipe, which passes through, has hook to push ring 52, and hook pushes the hook pipe at 52 both ends of ring Check ring 53 is coaxially fixedly installed on 5, check ring 53 and hook push and be cased with spring on the hook pipe 5 between ring 52 54, hook pushes two springs 54 on the hook pipe 5 of every, 52 both ends of ring that can make hook 51 can be with when hook takes bracket 7 Active fine tuning is carried out, every hook 51 can make when actually hook takes spring 54 according to practical situation to be finely adjusted The case where it is bigger that the success rate taken must be hooked, some hook 51 therein is as much as possible avoided to break off relations.

In this embodiment, hook 4 end of folding and unfolding pipe is wholely set is formed by by two retaining rings 46 and an arc surfaced tube 47 Push-and-pull end 43, control hook folding and unfolding pipe 4 for Manual push-pull and carry out axial back-and-forth motion, front position is leaned in push-and-pull end 43 On hook folding and unfolding pipe 4 on be coaxially fixedly installed and push retaining ring 41, push the position of retaining ring 41 to be located at hook and push ring 52 Rearward position drives hook to push ring 52 is synchronous to move forward, to make for linking up with when folding and unfolding pipe 4 moves axially forward Pipe 5 must be linked up with and hook folding and unfolding pipe 4 is synchronous moved axially forward.

When the embodiment is worked, there are six working conditions, such as Figure 16, Figure 17, Figure 18, Figure 19, Figure 20, Figure 21, figure 22, shown in Figure 23, Figure 24, Figure 25, Figure 26, Figure 27:

Working condition one: before needing to be taken out stent procedure, the bracket for collapsing 2 front end of pipe closes up piece 21, hook is received The hook for putting 4 front end of pipe props up disk 42 and hook 51 is contracted in sheath 1, and hook 51 is in non-release conditions, and bracket closes Hold together piece 21 under the contraction of spiral tightening ring 25 in closed configuration, link up with 41 position of promotion retaining ring of folding and unfolding pipe 4 at this time and consolidates The spacing for determining 3 end of casing is in the maximum moment, and hook pushes ring 52 to be tightly attached to and pushes on retaining ring 41, and hook 51 is contracted in hook Before propping up disk 42, device front end is goed deep into internal, makes 1 front end of sheath, close to bracket 7, between sheath 1 and bracket 7 in lumen Stop mobile sheath 1 when having a distance, at this time the axial push-and-pull end 43 for pushing hook folding and unfolding pipe 4, makes to link up with folding and unfolding pipe 4 Promotion retaining ring 41 drive hook push ring 52 move axially forward, hook push ring 52 again drive hook pipe 5 to preamble move It is dynamic, in this course, hook prop up disk 42 and hook pipe 5 synchronize move axially forward, when hook props up disk 42 and links up with 51 When synchronizing moving to the 7 a certain position in inside of bracket, hook pushes ring 52 to make under the promotion of the promotion retaining ring 41 of hook folding and unfolding pipe 4 The insertion hook of expansible stopper 32 for obtaining fixed sleeving 3 pushes the circular hole 56 of ring 52, at this time the circle of 32 pairs of expansible stopper hook promotion rings 52 Hole 56 carries out swelling, while the cambered surface cap outer diameter of 32 front end of expansible stopper pushes 56 internal diameter of circular hole of ring 52 to expand greater than hook Plug 32 can prevent hook from pushing ring 52 that hook pipe 5 is driven to move axially to the back-end, at this time the tube wall end face of 3 end of fixed sleeving Position-limiting action is played to the check ring 53 on hook pipe 5.

Working condition two: pulling the push-and-pull end 43 of hook folding and unfolding pipe 4 axially rearward, and hook folding and unfolding pipe 4 drives hook support It plays disk 42 to move axially to the back-end, because hook pushes ring 52 to be stuck in the expansible stopper 32 of fixed sleeving 3, hook pushes ring 52 remain static, and in this course, hook is propped up disk 42 and moved axially rearward relative to hook 51, and hook is propped up at this time Disk 42 is greater than close to the hook via hole 31 of 3 front end surface of fixed sleeving because hook props up the circumference outer diameter of 45 circle distribution of hole Link up with the circumference outer diameter of via hole 31, thus when hook prop up the hook via hole 31 of disk 42 and fixed sleeving 3 apart from it is closer when, hook Prop up disk 42 and link up with via hole 31 between hook pipe 5 lifted with angle it is bigger, while hook 51 and hook prop up between disk 42 Distance become larger, and because hook 4 front end of folding and unfolding pipe hook props up the hook on disk 42 and props up the angle in hole 45 and also sends out at raising Dissipate type distribution, so when link up with 51 distance hook prop up hole 45 farther out when hook 51 link up with 5 angle of pipe lift when with Hook pipe 5 lifts, so that the hook pipe 5 of even circumferential distribution achievees the effect that diverging, when hook 5 angle of pipe is raised to maximum When, the height for linking up with 51 is right up to outer diameter when bracket 7 is propped up, at this time slightly mobile device, so that hook 51 is hooked in bracket 7 On the establishment silk of fringe region, the check ring 53 for linking up with 5 rear end of pipe at this time cooperates spring 54 to enable to each hook 51 The case where braided wires of the bracket 7 taken are hooked according to itself, is voluntarily adjusted, so that each hook 51 is hooked on bracket 7.

Working condition three: pushing the push-and-pull end 43 of bracket folding and unfolding pipe 4, so that bracket folding and unfolding pipe 4 moves axially forward, this When hook folding and unfolding pipe 4 drive bracket prop up disk 42 forward movement, hook 51 with bracket prop up 42 spacing of disk reduction, fixed sleeving 3 The hook via hole 31 and bracket of section front end surface prop up the increase of the spacing between disk 42, so that hook 51 props up disk 42 in bracket Closed configuration is become by expansion divergent state under effect, the fringe region that the hook 51 of bracket 7 hooks, which also struts, to be become closing up, this When 7 state of bracket similar to one section thin one section of thick broadening formation.

Working condition four: changing hands the second handwheel 62, because of the second handwheel 62 and the second external spiral for collapsing 2 back-end region of pipe Striped 62 is spiral connection, and because the guide pad 67 of the second limit stop ring 66 and the guide groove 12 of sheath 1 play guiding cooperation and make Pipe 2 must be collapsed and carry out moving axially forward without rotation, because the inside for collapsing pipe 2 is cased with fixed sleeving 3, fixed sleeving 3 Front-end Design is one section of smooth surface wavy raised 33, and when collapsing the forward movement of 2 front end of pipe, bracket closes up 21 inner wall of piece It withstands in the protrusion 33 of the wave of 3 front end of fixed sleeving, under the action of the protrusion 33 of wave, the bracket of circle distribution closes up piece 21 are opened into horn-like, and pipe 2 is moved axially forward moves axially forward on one side when collapsing, and bracket closes up 21 one side of piece into loudspeaker Shape is opened, until the bracket of expansion closes up piece 21 and wraps one end that bracket 7 has been tending towards closing up, horn-like bracket closes up 21 spreading area of piece is greater than the flare openings of sheath, and it is in order to anti-that bracket closes up piece 21 close up to bracket 7 prior to sheath 1 It can not fully wrapped around firmly bracket 7 when only sheath 1 is closed up.

Working condition five: rotating the first handwheel 61 at this time, in the threaded engagement and the first limit stop ring 65 of the first handwheel 61 Guiding mating reaction under, sheath 1 moves axially forward, and closes up until sheath 1 wraps bracket and piece 21 and closes up the bracket at end 7。

Working condition six: continuing to rotate the first handwheel 61, and sheath 1 continues to move along, because hook 51 hooks bracket 7 Make bracket 7 that can not draw back, sheath 1 carries out closing up package using flare openings structure to 7 remainder of bracket, so that bracket 7, completely into the second handwheel 62 into sheath 1, is then rotated backward, move, bracket closes up piece axially rearward so that collapsing pipe 2 21 inner walls are detached from the protrusion 33 of the wave of 3 front end of fixed sleeving, and bracket closes up piece 21 becomes closed configuration again, finally by device Take out external, the recycling completion of bracket 7.

The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model Protection scope within.

Claims (10)

1. a kind of hook recyclable device of visual controllable intracanal scaffold, is used to hook up the bracket in body cavities, It is characterised in that it includes fixed sleeving, the hook folding and unfolding pipe being socketed in the fixed sleeving and being socketed in be set to it is described solid Determine the hook pipe in the hook via hole on casing；The front end of the hook pipe is provided with the hook for hooking bracket, the extension The end of hook pipe is connected with hook and pushes ring, is provided on the hook folding and unfolding pipe described for pushing the hook that ring is pushed to make Link up with the promotion retaining ring that pipe moves forward.

2. a kind of hook recyclable device of visual controllable intracanal scaffold according to claim 1, which is characterized in that also Including the sheath for entangling bracket and the hand push mechanism for keeping the sheath mobile, the fixed sleeving is socketed in the sheath In pipe.

3. a kind of hook recyclable device of visual controllable intracanal scaffold according to claim 2, which is characterized in that also Including the gathering pipe being socketed in the sheath, the fixed sleeving is socketed in the gathering pipe, and the hand push mechanism can also Keep the gathering pipe mobile.

4. a kind of hook recyclable device of visual controllable intracanal scaffold according to claim 3, which is characterized in that institute The front end for stating hook folding and unfolding pipe is provided with hook and props up disk, the hook prop up be provided on disk for the hook across extension Hook props up hole.

5. a kind of hook recyclable device of visual controllable intracanal scaffold according to claim 4, which is characterized in that institute It states and is provided with circular hole on hook promotion ring, the end of the fixed sleeving is provided with the expansible stopper for being inserted into the circular hole.

6. a kind of hook recyclable device of visual controllable intracanal scaffold according to claim 5, which is characterized in that institute It states and is provided with check ring and spring on hook pipe, the spring is in the check ring and the hook pushes between ring.

7. a kind of hook recyclable device of visual controllable intracanal scaffold according to claim 6, which is characterized in that institute The front end for stating gathering pipe is provided with flexible bracket and closes up piece, and the front end of the fixed sleeving is provided with described for jacking up Bracket closes up the protrusion of piece.

8. a kind of hook recyclable device of visual controllable intracanal scaffold according to claim 7, which is characterized in that institute It states and is provided with the first external spiral striped in sheath, the hand push mechanism includes for carrying out screw thread with the first external spiral striped First handwheel of connection.

9. a kind of hook recyclable device of visual controllable intracanal scaffold according to claim 8, which is characterized in that institute It states to collapse and is provided with the second external spiral striped on pipe, the hand push mechanism further includes for carrying out with the second external spiral striped The second handwheel being threadedly coupled.

10. a kind of hook recyclable device of visual controllable intracanal scaffold according to claim 9, which is characterized in that The hand push mechanism further includes handle and the fixation lasso connecting with the handle, the first limit stop ring, the second limit stop ring；Institute It states fixing sleeve circle to be socketed on the fixed sleeving, first limit stop ring and the second limit stop ring are socketed in the sheath respectively On pipe and gathering pipe, first handwheel is between two first limit stop rings, and second handwheel is in two institutes It states between the second limit stop ring.