CN208726521U - Adjustable bending guide wire apparatus - Google Patents

Abstract

The utility model discloses a kind of adjustable bending guide wire apparatus, including guidewire body, the guidewire body includes hollow outer seal wire, the core filaments being installed in outer guidewire lumen, and the end of the outer wire distal is fixedly connected with the end of core filaments distal end；The core filaments distal end, which is equipped with, is shaped as forniciform distal portion, and guidewire body distal end is in bending in a free state；Described device further includes the tune bender structure for adjusting guidewire body distal end bending degree and the seal wire locking mechanism for locking core filaments proximal end；The core filaments proximal end is pierced by outer seal wire and is detachably fixed with seal wire locking mechanism and connect；The tune bender structure is movably connected in guidewire body proximal end, and outer guidewire proximal is driven to be axially moved relative to core filaments proximal end；The seal wire locking mechanism is detachably secured to adjust bender structure proximal end.The utility model provides a kind of detachable handle and guidewire body, separates adjustable bending guide wire apparatus quick, easy to operate.

Description

Adjustable bending guide wire apparatus

Technical field

The utility model belongs to the field of medical instrument technology, is related to a kind of guide wire apparatus more particularly to a kind of adjustable bending is led Silk device.

Background technique

Seal wire is also referred to as guide wire or guide wire, is one of the main tool of percutaneous puncture intubation.Seal wire has conduit There are guidance and a supporting function, the medical instruments such as bootable conduit, delivery sheath enter blood vessel and other people coelomic splits, and smoothly arrive Up to designated position or lesion.But due to itself bendability of blood vessel and the human anatomic structure of complexity, seal wire is in lumen In may bend, wind, to influence its passability.

A kind of internal medicine intervention adjustable bending fishing seal wire, adjusts curved control terminal by handle chassis, handle disclosed in the prior art Twist bar, adjust silk and metal and adjust ring composition, being threadedly engaged between bar and handle chassis is twisted by handle, affect adjust silk to Proximal end movement drives metal to adjust ring to realize that the tune of remote spring card section is curved.The shortcomings that technology, is: product construction compared with Complexity, component is more, to manufacturing technique requirent height；It adjusting silk and core filaments is parallel, during tune is curved, core filaments are not only distally bent, Proximal end can equally generate certain bending because of stress, and this bending state will lead to seal wire and turn round control property variation, be unfavorable for seal wire In intracavitary direction designated position；Also, guidewire body is fixedly connected with handle, and after seal wire reaches designated position, handle can not Disassembly, is unfavorable for conduit and is swapped by seal wire.

The prior art also discloses a kind of head end adjustable-angle seal wire, including guidewire body, adjusting silk, bearing seat, drawing Part and revolving part are stretched, by being threadedly engaged between revolving part and tensioning member, revolving part is rotated and is stretched to silk is adjusted, in turn The toe angle of guidewire body is adjusted.The defect of the technology is that guidewire body is fixedly connected with regulation handle, in seal wire After reaching designated position, handle can not be dismantled, and be unfavorable for conduit and swapped by seal wire.

Utility model content

The technical problem to be solved by the present invention is to bend through for the proximal body of core filaments in the prior art in tune Can be also bent in journey, seal wire turn round control property it is poor, adjust curved hand grip structure is complicated, it is inconvenient for operation and adjust curved hand grip can not be with seal wire Ontology realizes the defect of Fast Installation and disassembly, and the proximal body for providing a kind of avoidable core filaments is bent during tune is curved, leads Silk turn round control property preferably and using between detachable handle and guidewire body can with quick separating, structure is simple, easily to operate may be used Adjust curved guide wire apparatus.

The technical scheme adopted by the utility model to solve the technical problem is as follows:

A kind of adjustable bending guide wire apparatus, including guidewire body.The guidewire body includes hollow outer seal wire and is installed on Core filaments in outer guidewire lumen.The end of the outer wire distal is fixedly connected with the end of core filaments distal end.The core filaments distal end Equipped with being shaped as forniciform distal portion.Guidewire body distal end is in bending in a free state.The adjustable bending guide wire apparatus It further include the tune bender structure for adjusting guidewire body distal end bending degree and the seal wire locking mechanism for locking core filaments proximal end. The core filaments proximal end is pierced by outer seal wire and is detachably fixed with seal wire locking mechanism and connect.The tune bender structure is movably connected in Guidewire body proximal end, and outer guidewire proximal is driven to be axially moved relative to core filaments proximal end.The seal wire locking mechanism is detachably solid It is scheduled on and adjusts bender structure proximal end.

In the adjustable bending guide wire apparatus, the preferably described tune bender structure is movably set in outside guidewire body proximal end, and institute State adjust bender structure include hollow tunes curved hand grip, limit be arranged in adjust curved hand grip on only rotation the curved cylinder of tune and be installed on tune it is curved Driving tube in intracavity of handle.It is described that curved cylinder is adjusted to engage with driving tube.Driving tube is driven to adjust in curved hand grip when curved cylinder being adjusted to rotate In chamber axially movable.The corresponding driving tube cavity in the driving tube proximal end is provided with limit hole.The limit hole internal diameter is less than outer Seal wire outer diameter, by the outer guidewire proximal limit in driving tube.The core filaments are pierced by from limit hole locks machine with seal wire Structure is detachably fixed connection.

In the adjustable bending guide wire apparatus, the distal portion of the preferably described driving tube is equipped with sliding block.The tune curved hand grip edge Axially it is provided with connector.The sliding block cooperation adjusts curved cylinder to engage in connector and with described.Band movable slider when curved cylinder being adjusted to rotate It is axially moveable in connector.

In the adjustable bending guide wire apparatus, the preferably described tune curved hand grip distal end is removably fixed with capping.The tune is curved Cylinder is set in the tune curved hand grip distal end.The capping will be adjusted curved collet chuck to hold and limited on adjusting curved hand grip with tune curved hand grip cooperation Only rotate.

In the adjustable bending guide wire apparatus, restraining position ring block preferably is set in driving tube proximal end.The stop collar center is logical Hole is the limit hole.The internal diameter of the stop collar central through hole is less than outer seal wire internal diameter, so that outer guidewire proximal end face compresses On stop collar.The proximal end of core filaments is pierced by from the stop collar central through hole.

In the adjustable bending guide wire apparatus, the preferably described seal wire locking mechanism includes the locking for locking core filaments proximal end Part.The locking piece is detachably secured to adjust bending of the hand handle proximal end.

In the adjustable bending guide wire apparatus, the preferably described core filaments proximal end is equipped with core filaments connector.The core filaments pass through core Connection is detachably fixed between silk connector and locking piece.

In the adjustable bending guide wire apparatus, the preferably described limiting slot for adjusting curved hand grip proximal face to be provided with indent.It is described Locking piece is placed in limiting slot and is encapsulated in limiting slot by tail-hood.

In the adjustable bending guide wire apparatus, the preferably described locking piece distal end is axially arranged with the locking coaxial with driving tube Hole.The core filaments connector is actively installed in lock hole.The locking piece wall surface edge is axially arranged at least one expansion joint. After the locking piece being placed in limiting slot is oppressed by limiting slot, locking piece is radially contracted, and lock hole clamps core filaments connector Core filaments connector to be fixed.

In the adjustable bending guide wire apparatus, the preferably described lock hole inner wall shape and core filaments connector outside wall surface shape Cooperation is consistent, and locking piece may make to clamp core filaments connector when lock hole is shunk as a result,.

In the adjustable bending guide wire apparatus, the distal end end face edge of the preferably described locking piece is axially arranged with connecting hole.It is described Be spirally connected fixation between core filaments connector and the connecting hole.

In the adjustable bending guide wire apparatus, the preferably described locking piece includes lock, lock pin and deformable resilient key.Institute It states lock and is provided with the guide hole for installing core filaments connector along axial direction, it is parallel with guide hole to be provided with elastic pin hole, with guide hole and bullet Property pin hole vertical direction is provided with lockpin hole.The lockpin hole and guide hole and elastic pin hole penetrate through.The lock pin is installed on described In lockpin hole, top is pierced by lock.The lock pin bottom is provided with corresponding with elastic pin hole across hole.The resilient key installs It in the elastic pin hole and passes through in hole, by lock pin spacing in lockpin hole.Ladder is correspondingly provided with guide hole on the lock pin Hole.The top aperture of the stepped hole is greater than bottom part aperture diameter.Spacing between the guide hole and elastic pin hole meets: free shape Under state, guide hole connection corresponding with stepped hole bottom, the core filaments connector for being installed on stepped hole bottom is locked；Pressing lock pin makes Resilient key flexible deformation is obtained, lock pin is mobile so that guide hole connection corresponding with stepped hole top, the core being installed at the top of stepped hole Silk connector unlocks.

In the adjustable bending guide wire apparatus, the proximal end of the preferably described core filaments connector is by being closely respectively equipped with block piece to remote And linkage section.The linkage section is threaded onto stepped hole.The top aperture of the stepped hole is greater than block piece outer diameter, stepped hole Bottom part aperture diameter is less than block piece outer diameter.

In the adjustable bending guide wire apparatus, the preferably described tune bender structure includes proximal handle and distal handle.It is described remote End handle is along the inner cavity for being axially arranged with perforation.The distal end of the proximal handle installs and limits the inner cavity for being fixed on distal handle In.Elastic component is equipped between the proximal handle and distal handle.The guidewire body proximal end is installed on the inner cavity of distal handle In, and the outer seal wire is limited in the inner cavity of distal handle.Core filaments proximal end is pierced by distal handle and is detachably secured to remote The seal wire locking mechanism of end handle proximate end is detachably connected.The proximal handle edge is axially arranged with lock slots.The seal wire locking Mechanism cooperates in lock slots.It is moved axially relatively between the seal wire locking mechanism and lock slots.

In the adjustable bending guide wire apparatus, the preferably described seal wire locking mechanism includes locking piece.The locking piece includes Lock, lock pin and deformable resilient key.The lock is provided with the guide hole for installing core filaments connector along axial direction, flat with guide hole Row is provided with elastic pin hole, is provided with lockpin hole, the lockpin hole and guide hole and elasticity with guide hole and elastic pin hole vertical direction Pin hole perforation.The lock pin is installed in the lockpin hole, and top is pierced by lock.The lock pin bottom is provided with and elastic pin hole It is corresponding to pass through hole.The resilient key is installed on the elastic pin hole and passes through in hole, by lock pin spacing in lockpin hole.It is described Stepped hole is correspondingly provided with guide hole on lock pin.The top aperture of the stepped hole is greater than bottom part aperture diameter.The guide hole and bullet Property pin hole between spacing meet: under free state, guide hole connection corresponding with stepped hole bottom is installed on stepped hole bottom Core filaments connector is locked；Pressing lock pin makes resilient key flexible deformation, and lock pin is mobile so that guide hole and stepped hole top are right Connection is answered, the core filaments connector at the top of stepped hole is installed on and unlocks.

In the adjustable bending guide wire apparatus, the preferably described distal handle proximal end is equipped with limiting slot, and corresponding limiting slot is removable Unload connection finite place piece.The locating part is by the seal wire locking mechanism limitation locking in distal handle proximal end.

In the adjustable bending guide wire apparatus, the preferably described distal handle proximal end limiting slot is extended with card slot.The limit Part corresponds to card slot equipped with positive stop lug boss.It limits and fixes in the positive stop lug boss insertion card slot.There are for proximal end hand for the locating part The limit hole that handle distal end passes through.

In the adjustable bending guide wire apparatus, the preferably described lock distal end is equipped with convex edge.The limiting slot is correspondingly provided with recessed Slot.Groove is inserted into the convex edge, and is limited locking piece in distal handle proximal end by locating part.

The utility model compared with prior art, at least has the advantages that

In the utility model, the outer seal wire of guidewire body and core filaments are fixed in distal end, by adjust bender structure drive core filaments and Relative displacement occurs for outer seal wire, and guidewire body distal end is promoted to change in moulding state and straight state.Since seal wire locks Mechanism is fixedly connected with core filaments, and the utility model can directly reverse core filaments, compared with reversing outer seal wire in the prior art, is eliminated The torsion gap of the spring of outer seal wire, it is torsion stronger, and can avoid adjusting and bend through the bending of core filaments proximal end, more conducively operator in journey Seal wire torsion is transferred into designated position.Meanwhile adjusting bender structure that can load and unload at any time with guidewire body, convenient for straight in subsequent procedures operation It connected seal wire and carries out exchange of apparatus, and saved operating time.In addition guidewire body is only made of outer seal wire and core filaments, components Few, the probability for the risk that breaks down is low；Processing technology is simple, convenient for operation.

Detailed description of the invention

Below in conjunction with accompanying drawings and embodiments, the utility model is described in further detail, in attached drawing:

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

Fig. 2 is the structural schematic diagram of 1 guidewire body of the utility model embodiment；

Fig. 3 is the structural schematic diagram after 1 guidewire body of the utility model embodiment is straightened；

Fig. 4 is partial enlarged view at I in Fig. 2；

Fig. 5 is the structural schematic diagram that the utility model embodiment 1 adjusts bender structure and seal wire locking mechanism；

Fig. 6 is partial enlarged view at M in Fig. 5；

Fig. 7 is the structural schematic diagram of 1 locking piece of the utility model embodiment；

Fig. 8 is the structural schematic diagram that the utility model embodiment 2 adjusts bender structure and seal wire locking mechanism；

Fig. 9 is the structural schematic diagram of 2 locking piece of the utility model embodiment；

Figure 10 is the structural schematic diagram that the utility model embodiment 3 adjusts bender structure and seal wire locking mechanism；

Figure 11 is the structural schematic diagram of 3 lock of the utility model embodiment；

Figure 12 is the structural schematic diagram of 3 lock pin of the utility model embodiment；

Figure 13 is the structural schematic diagram of 3 lock of the utility model embodiment and lock pin cooperation；

Figure 14 is the structural schematic diagram of 3 core filaments connector of the utility model embodiment；

Figure 15 is the explosive view that the utility model embodiment 4 adjusts bender structure and seal wire locking mechanism；

Figure 16 is partial enlarged view at N in Figure 15；

Figure 17 is the structural schematic diagram that the utility model embodiment 4 adjusts bender structure and seal wire locking mechanism；

Figure 18 is the structural schematic diagram of 4 lock of the utility model embodiment；

Figure 19 is the structural schematic diagram of 4 lock pin of the utility model embodiment；

Figure 20 is the structural schematic diagram of 4 lock of the utility model embodiment and lock pin cooperation；

Figure 21 is the structural schematic diagram of 5 locking piece of the utility model embodiment；

Figure 22 is the cross-sectional view of 5 locking piece of the utility model embodiment.

Specific embodiment

For a clearer understanding of the technical features, objectives and effects of the utility model, now control attached drawing is detailed Illustrate specific embodiment of the present utility model.

Bearing definition: being directed to guide wire apparatus, be proximal end by proximal operator, is distal end far from operator.

Embodiment 1, as shown in figs. 1-7, a kind of adjustable bending guide wire apparatus, including guidewire body 2000, the guidewire body 2000 include hollow outer seal wire 2100 and the core filaments 2200 being installed in outer 2100 inner cavity of seal wire.The outer seal wire 2100 is remote The end at end is fixedly connected with the end of 2200 distal end of core filaments.2200 distal end of core filaments is equipped with distal portion 2201.The core filaments 2200 distal portion 2201 is in bending in a free state.The adjustable bending guide wire apparatus further includes for adjusting guidewire body The tune bender structure 1000 of 2000 distal end bending degree and the seal wire locking mechanism 3000 for locking 2200 proximal end of core filaments.The core 2200 proximal ends of silk, which are pierced by outer seal wire 2100 and are detachably fixed with seal wire locking mechanism 3000, to be connect.The tune bender structure 1000 It is movably connected in 2000 proximal end of guidewire body, and outer 2100 proximal end of seal wire is driven to be axially moved relative to 2200 proximal end of core filaments.Institute Seal wire locking mechanism 3000 is stated to be detachably secured to adjust 1000 proximal end of bender structure.

The structure of the adjustable bending guide wire apparatus of the utility model is divided into three parts, and first part is guidewire body 2000, As shown in Fig. 2, guidewire body 2000 is made of outer seal wire 2100 and core filaments 2200, core filaments 2200 are installed on outer seal wire 2100 In inner cavity.Outer seal wire 2100 can be axially moveable with respect to core filaments 2200, that is, core filaments 2200 can be in outer 2100 inner cavity of seal wire along axis To relative movement.Outer 2100 distal end of seal wire is fixedly connected with 2200 distal end of core filaments.The distal end of core filaments 2200 is equipped with distal portion 2201. The distal portion 2201 is tapered, and by proximal end to distal end tapers down, and plastotype is at the bending with certain bending angle, I.e. in nature, the distal portion of core filaments 2200 is bending, and outer seal wire 2100 equally occurs under 2200 active force of core filaments Bending, so that the distal end of guidewire body 2000 is integrally in bending state.Bending angle can be set according to actual needs.This is practical new The maximum bend angle of type, i.e., the maximum value of angle α is 180 ° between 2000 distal tip of guidewire body and guidewire body 2000. It is the straightening state of guidewire body 2000 as shown in Figure 3, outer seal wire 2100 is axial to distal end along core filaments 2200 under external force It is mobile.The bending angle of 2000 distal end of guidewire body changes between 0 ° -180 ° with the axial movement of outer seal wire 2100.

As shown in Figure 1,5, the second part structure of the utility model is to adjust bender structure 1000.The tune bender structure 1000 Effect is for by 2000 straightening of guidewire body of plastic bending, i.e. tune bender structure 1000 to adjust outer seal wire 2100 and core filaments Relative motion between 2200, to realize the adjustment of 2000 distal end bending degree of guidewire body.Adjusting bender structure 1000, there are many implement Mode, the present embodiment 1 are the first embodiments for adjusting bender structure 1000:

As shown in figure 5, the tune bender structure 1000 is movably set in outside 2000 proximal end of guidewire body.Guidewire body 2000 Outer seal wire 2100 and core filaments 2200, which are all installed on, to be adjusted in bender structure 1000.The tune bender structure 1000 includes hollow tune curved hand grip 1300, limit is arranged in the curved cylinder 1200 of tune for adjusting only rotation on curved hand grip 1300 and is installed on and adjusts in 1300 inner cavity of curved hand grip Driving tube 1500.

On the one hand the effect for adjusting curved hand grip 1300 is for holding, be on the other hand that will adjust 1000 other component of bender structure It is arranged in the inner cavity for adjusting curved hand grip 1300 hollow.Adjust curved hand grip 1300 whole in a tubular form, specific structure and shape can bases Actual needs setting.It adjusts curved hand grip 1300 to be equipped with and adjusts curved cylinder 1200.It adjusts curved cylinder 1200 to be limited to adjust on curved hand grip 1300 only Rotation.There are many modes of restriction, adjusts the first embodiment of curved cylinder 1200 with tune 1300 positional relationship of curved hand grip are as follows: adjust Curved cylinder 1200, which is set in, to be adjusted on curved hand grip 1300, and is limited and is only rotated on adjusting curved hand grip 1300.The mode of limit can be It adjusts curved 1200 both ends of cylinder to be limited or adjust to be limited in curved cylinder 1200.

The specific structure for adjusting curved 1200 both ends of cylinder to be limited is as follows: described that curved cylinder 1200 is adjusted to be set in the tune curved hand grip 1300 distal ends.1300 distal end of tune curved hand grip is also removably fixed with capping 1100.The capping 1100 and tune curved hand grip 1300 cooperations will adjust curved cylinder 1200 to clamp and limit and only rotate on adjusting curved hand grip 1300.Adjust the diameter of 1300 distal end of curved hand grip Less than proximal diameter, then after adjusting curved cylinder 1200 to be set in tune 1300 distal end of curved hand grip, adjusts curved 1200 outer wall of cylinder and adjust curved hand grip 1300 proximal end outside wall surfaces are flushed or are seamlessly transitted, and it is whole to form a gripping.Capping 1100 and adjust curved hand grip 1300 between can There are many disassembly is fixedly connected, it can be and be spirally connected, be interference fitted the various ways such as grafting, snap-lock, the present embodiment uses spiral shell It connects.

It adjusts and is limited structure in curved cylinder 1200 and is: in the groove for adjusting curved 1200 inner wall of cylinder setting, one circle vertical with central axes, Or along at least one protrusion of the circle of inner wall one setting, corresponding 1300 outer wall of tune curved hand grip is equipped with protrusion or groove.Curved cylinder is adjusted as a result, 1200 together with tune 1300 male-female engagement of curved hand grip, and protrusion can rotate in groove, but cannot be detached from groove, that is, realizes that tune is curved The limit of cylinder 1200.

Driving tube 1500, which is installed on, to be adjusted in curved cylinder 1200, and the curved cylinder 1200 of tune is engaged with driving tube 1500.It adjusts curved Cylinder 1200 rotate when drive driving tube 1500 adjust 1300 inner cavity of curved hand grip in axially movable.1500 proximal end of driving tube exists Limit hole 1530 is provided at corresponding 1500 inner cavity of driving tube.1530 internal diameter of limit hole is less than outer 2100 outer diameter of seal wire to incite somebody to action 2100 proximal end of the outer seal wire limit is in driving tube 1500.The core filaments 2200 are pierced by from limit hole 1530 to be locked with seal wire Mechanism 3000 is detachably fixed connection.

It adjusts curved cylinder 1200 to engage with driving tube 1500 to refer to: curved 1200 inner wall of cylinder being adjusted to be equipped with internal screw thread 1210, driving tube Corresponding external screw thread 1520 is provided on 1500, curved cylinder 1200 will be adjusted by engaging realization with internal screw thread 1210 by external screw thread 1520 Be converted into the axial linear motion of driving tube 1500.

As seen in figs. 5-6, due to outer seal wire 2100 is limited the limit of hole 1530 can only be in driving tube 1500, and core filaments 2200 are pierced by from limit hole 1530, then are moved axially by operation driving tube 1500, can drive outer 2100 proximal end phase of seal wire 2200 proximal end of core filaments is moved axially, realizes that core filaments 2200 or core filaments 2200 are straightened to initial moulding in outer 2100 distal end of seal wire Shape bending.

The driving tube 1500 is equipped with sliding block 1550.Sliding block 1550 is arranged on 1500 outer wall of driving tube.The tune bending of the hand The inner cavity of handle 1300 is provided with connector 1320 along axial direction.Connector 1320 is elongated slot, can play guiding role.The sliding block 1550 cooperations are in connector 1320.Exceed connector 1320 at the top of sliding block 1550.It is set at the top of the sliding block 1550 of driving tube 1500 It is equipped with external screw thread 1520 (that is, the external screw thread 1520 being arranged on driving tube 1500), with the internal screw thread 1210 for adjusting curved cylinder 1200 Engagement.Adjust curved cylinder 1200 that sliding block 1550 is driven to be axially moveable in connector 1320 after engagement.The length of sliding block 1550 is less than 1320 length of connector.The length of connector 1320 is according to the curved required spacing setting of tune.Sliding block 1550 is in 1320 distal end of connector When, guidewire body 2000 is free state, distal end bending；When sliding block 1550 slides into 1320 proximal end of connector, driving tube The limit hole 1530 of 1500 proximal ends stops outer seal wire 2100, core filaments 2200 with adjust curved hand grip 1300 relative to outer seal wire 2100 to Proximal end is mobile, and core filaments 2200 are straightened, then 2000 distal end of guidewire body is in straight.The proximal end face and distal face shape of sliding block 1550 The shape cooperation of the proximal openings and distal openings of shape and connector 1320 is consistent so that sliding block 1550 in connector 1320 only It slides axially, and cannot move radially.

2000 proximal end of guidewire body is installed in the driving tube 1500.The corresponding driving in 1500 proximal end of driving tube Finite place piece is arranged in the inner cavity 1510 of pipe 1500.Locating part is equipped with limit hole 1530.1530 internal diameter of limit hole is less than outer 2100 outer diameter of seal wire is limiting outer 2100 proximal end of seal wire in driving tube 1500.The proximal end of the core filaments 2200 is from limit It is pierced by be detachably fixed with seal wire locking mechanism 3000 in hole 1530 and connect.There are many structures of locating part, one of structure Are as follows: stop collar is equipped in 1500 proximal end of driving tube.The central through hole of stop collar is limit hole 1530.In the limit hole 1530 Diameter is less than outer 2100 internal diameter of seal wire, so that 2100 proximal face of outer seal wire is pressed on stop collar, 2200 proximal end of core filaments is from limit It is pierced by the central through hole (that is, limit hole 1530) of ring.

Second of structure is that radial central axes direction Stepwize Shrink forms limit hole 1530 in 1500 proximal end of driving tube. 1530 internal diameter of limit hole is less than outer 2100 internal diameter of seal wire.Outer 2100 proximal face of seal wire is pressed on driving tube 1500 as a result, On inner wall.The present embodiment uses this structure.

As illustrated in figs. 5-7, the Part III structure of the utility model is seal wire locking mechanism 3000.Seal wire locking mechanism 3000 include locking piece 3100.The locking piece 3100 is detachably secured to adjust 1300 proximal end of curved hand grip.Seal wire locking mechanism 3000, for locking core filaments 2200, make it be always positioned at the fixation position for adjusting 1300 proximal lateral of curved hand grip, then user can lead to It crosses and adjusts outer seal wire 2100 to adjust the spacing between the two proximal end.Seal wire locking mechanism 3000 is with detachable between core filaments 2200 Connection.As a result, after guidewire body 2000 is adjusted camber and pushes to designated position, bender structure 1000 and seal wire can will be adjusted to lock Determine mechanism 3000 to withdraw from, does not hinder the effect of seal wire itself, swapped conducive to conduit by seal wire.

Fig. 4 is referred to, since 2200 diameter of core filaments is thinner, it is not easy to it is fixed, it is locked to improve core filaments 2200 and seal wire Attachment force between mechanism 3000,2200 proximal end of core filaments are also provided with core filaments connector 2300.Core filaments connector 2300 It is fixedly connected with 2200 proximal end of core filaments.That is, the core filaments 2200 pass through core filaments connector 2300 and seal wire locking mechanism 3000 Connection is detachably fixed between (that is, locking piece 3100).It is preferred that the outer diameter of core filaments connector 2300 is less than the outer of outer seal wire 2100 Diameter and the internal diameter for being greater than outer seal wire 2100, so that core filaments connector 2300 is maintained at outer 2100 proximal lateral of seal wire.Core filaments connection The mode that is fixedly connected between part 2300 and 2200 proximal end of core filaments such as can be welding, crimp at the technological means generally in the art.Core Silk connector 2300 is column, and cross section can be round, rectangular, polygon or other shapes, generally use circle.

As illustrated in figs. 5-7, there are many first embodiment party that embodiment, the present embodiment use for seal wire locking mechanism 3000 Formula:

Refer to Fig. 6, the limiting slot 1330 for adjusting 1300 proximal face of curved hand grip to be provided with indent.The locking piece 3100 It is placed in limiting slot 1330 and is encapsulated in limiting slot 1330 by tail-hood 3200.The tail-hood 3200 and tune curved hand grip 1300 Proximal end is spirally connected.The locking effect of locking piece 3100 is to cooperate to complete with limiting slot 1330.3100 distal end of locking piece is along axis To equipped with the lock hole 3110 coaxial with driving tube 1500.The core filaments connector 2300 is actively installed on lock hole 3110 In.3100 wall surface of locking piece along being axially arranged with expansion joint 3120, when the locking piece 3100 being placed in limiting slot 1330 by After limiting slot 1330 is oppressed, locking piece 3100 radially (that is, to central axes direction) is shunk, and lock hole 3110 clamps core filaments connection Part 2300 is to be fixed.When locking piece 3100 is no longer placed in limiting slot 1330, locking piece 3100 is radially expanded, lock Determine hole 3110 and no longer clamp core filaments connector 2300, core filaments connector 2300 and 2200 proximal end of core filaments can be from locking pieces 3100 It withdraws from.

It is understood that in other embodiments, 3100 distal end of locking piece is equipped with the first inclined-plane 3101, locking piece 3100 The second inclined-plane 3102 is equipped with towards tail-hood 3200.When in the external screw thread of tail-hood 3200 and the limiting slot 1330 of tune curved hand grip 1300 Screw thread is spirally connected when screwing, and adjusts the diminution of the distance between curved hand grip 1300 and tail-hood 3200, the first inclined-plane on locking piece 3100 3101 and second inclined-plane 3102 radially (that is, to central axes) shunk by the extruding for adjusting curved hand grip 1300 and tail-hood 3200, Lock hole 3110 reduces, and clamps core filaments connector 2300 so that core filaments connector 2300 is fixed.When 3200 external screw thread of tail-hood and adjust When 1300 external screw thread 1310 of curved hand grip unscrews, the distance between curved hand grip 1300 and tail-hood 3200 is adjusted to increase, locking piece 3100 is not It is squeezed again, lock hole 3110 restores full size under natural conditions, no longer clamping core filaments connector 2300, core filaments connector 2300 can withdraw from 2200 proximal end of core filaments from locking piece 3100.

In order to clamp core filaments 2200 and core filaments connector 2300, the preferably described 3110 inner wall shape of lock hole and core filaments connect The cooperation of 2300 outside wall surface shape of fitting is consistent, can clamp core filaments connector 2300 when lock hole 3110 is shunk as a result,.Core filaments connection The cross section of part 2300 can be cylindrical, rectangular, polygon or other shapes, and core filaments connector 2300 is preferably using cylinder Structure, 2200 body structures of core filaments are exactly that cross section is round or approximate circle.Lock hole 3110 and core filaments 2200 and core filaments connect 2300 form fit of fitting is consistent, forms cylindrical, rectangular, polygon or other shapes.

The implementation process of adjustable bending guide wire apparatus provided in this embodiment is as follows: when assembling, 2000 proximal end of guidewire body is worn The coaxial inner cavity for entering to adjust curved hand grip 1300 to be formed with driving tube 1500.Core filaments connector 2300 passes through the limit of 1500 proximal end of driving tube Position hole 1530, reach locking piece 3100 connecting hole 3150 at.The proximal end of outer seal wire 2100 is limited in the interior of driving tube 1500 In chamber.At this point, rotation guidewire body 2000, will adjust curved hand grip 1300 to screw with capping 1100, by core filaments 2200 and bending of the hand is adjusted Handle 1300 is fixedly connected.When outer 2100 end face of seal wire and 1530 end face of limit hole offset, screw thread cannot continue to screw, then seal wire Main body 2000 is installed in place.Continue rotation and adjust curved cylinder 1200, drives driving tube 1500 along axial direction to distally moving, while driving outer Seal wire 2100 is mobile to distal end axially with respect to core filaments 2200, realizes the gradually adjusting of guidewire body 2000.

After adjusting curved completion or guidewire body 2000 to reach designated position, to guidewire body 2000 and bender structure 1000 can be adjusted It is dismantled.It when disassembly, reversely rotates and adjusts curved cylinder 1200, drive driving tube 1500 to move to the near end along axial direction, outer seal wire 2100 Original position is returned to, guidewire body 2000 replys former angle at this point, keeping guidewire body 2000 fixed, reversely rotates and adjust curved hand grip 1300, core filaments connector 2300 is screwed out from connecting hole 3150.Guidewire body 2000 unlocks, can be by 1300 inner cavity of tune curved hand grip Extraction.

Embodiment 2, the present embodiment are the improvement carried out on the basis of embodiment 1.

As Figure 8-9, a kind of adjustable bending guide wire apparatus, including the sweeping guidewire body in distal end under free state 2000.The guidewire body 2000 includes hollow outer seal wire 2100 and the core filaments 2200 being installed in outer 2100 inner cavity of seal wire. The end of 2100 distal end of outer seal wire is fixedly connected with the end of 2200 distal end of core filaments.The adjustable bending guide wire apparatus further includes Seal wire lock for adjusting the tune bender structure 1000 of 2000 distal end bending degree of guidewire body and for locking 2200 proximal end of core filaments Determine mechanism 3000.2200 proximal end of core filaments be pierced by outer seal wire 2100 and with 3000 company of being detachably fixed of seal wire locking mechanism It connects.The tune bender structure 1000 is movably set in 2000 proximal end of guidewire body, and drives outer 2100 proximal end of seal wire relative to core filaments 2200 proximal ends are axially moved.The seal wire locking mechanism 3000 is detachably secured to adjust 1000 proximal end of bender structure.

The difference of embodiment 2 and embodiment 1 are as follows: the structure of seal wire locking mechanism 3000 is different, i.e. the seal wire of the present embodiment Locking mechanism 3000 uses second of embodiment:

The distal end end face edge of the locking piece 3100 is axially arranged with connecting hole 3150.The core filaments connector 2300 and institute Connecting hole 3150 is stated to be spirally connected fixation.Core filaments connector 2300 is equipped with external screw thread.Connecting hole 3150 is equipped with internal screw thread.The locking Part 3100 is screwed onto 2200 proximal end of core filaments.Since 3100 outer diameter of locking piece is greater than outer 2100 internal diameter of seal wire and is greater than limit hole 1530 internal diameters, then core filaments connector 2300 is fixed on by locking piece 3100 adjusts 1300 proximal lateral of curved hand grip.The tune curved hand grip 1300 proximal ends are bolted with tail-hood.Locking piece 3100 is enclosed in the limiting slot 1330 for adjusting 1300 proximal end of curved hand grip by the tail-hood. When the internal screw thread of the external screw thread of tail-hood and tune 1300 limiting slot 1330 of curved hand grip, which is spirally connected, to be screwed, curved hand grip 1300 and tail-hood are adjusted The distance between 3200 reduce, and locking piece 3100, which is pressed abd fixed on, adjusts 1300 proximal end of curved hand grip, when reverse rotation tail-hood 3200, and locking piece 3100 is reversely rotated, 2200 proximal end of core filaments can be withdrawn from from locking piece 3100.

Rest part structure is with embodiment 1, and details are not described herein.

Embodiment 3, the present embodiment are the improvement carried out on the basis of embodiment 1.

As shown in figures 10-14, a kind of adjustable bending guide wire apparatus, including the sweeping guidewire body in distal end under free state 2000.The guidewire body 2000 includes hollow outer seal wire 2100 and the core filaments 2200 being installed in outer 2100 inner cavity of seal wire. The end of 2100 distal end of outer seal wire is fixedly connected with the end of 2200 distal end of core filaments.Described device further includes leading for adjusting The tune bender structure 1000 and the seal wire locking mechanism 3000 for locking 2200 proximal end of core filaments of silk 2000 distal end bending degree of main body. 2200 proximal end of core filaments is pierced by outer seal wire 2100 and is detachably fixed with seal wire locking mechanism 3000 and connect.The tune bender Structure 1000 is movably set in 2000 proximal end of guidewire body, and drives outer 2100 proximal end of seal wire relative to 2200 proximal end of core filaments axial direction Movement.The seal wire locking mechanism 3000 is detachably secured to adjust 1000 proximal end of bender structure.

The difference of the present embodiment and embodiment 1 are as follows: seal wire locking mechanism 3000 is different, i.e., the seal wire of the present embodiment locks machine Structure 3000 uses the third embodiment:

Referring to Figure 13, the locking piece 3100 includes lock 3111, lock pin 3112 and deformable resilient key 3113.Institute It states lock 3111 and is provided with the guide hole 3114 for installing core filaments connector 2300 along axial direction, it is parallel with guide hole 3114 to be provided with resilient key Hole 3115 is provided with lockpin hole 3116 with guide hole 3114 and elastic 3115 vertical direction of pin hole.The lockpin hole 3116 and guiding Hole 3114 and elastic pin hole 3115 penetrate through.The lock pin 3112 is installed in the lockpin hole 3116, and top is pierced by lock 3111.3112 bottom of lock pin is provided with connecting hole 3150 corresponding with elastic pin hole 3115.The resilient key 3113 is installed on In the elasticity pin hole 3115 and connecting hole 3150, thus lock pin 3112 is fixed in lockpin hole 3116.The lock pin 3112 Upper and guide hole 3114 is correspondingly provided with stepped hole 3117.The top aperture 3117a of stepped hole 3117 is greater than the aperture bottom 3117b. Spacing between the guide hole 3114 and elastic pin hole 3115 meets: under free state, guide hole 3114 and stepped hole 3117 Bottom 3117b correspond to connection, the core filaments connector 2300 for being installed on the bottom 3117b of stepped hole 3117 is locked；Pressing lock Pin 3112 makes resilient key 3113 that flexible deformation occur, and lock pin 3112 moves the top so that guide hole 3114 and stepped hole 3117 Portion 3117a corresponds to connection, and the core filaments connector 2300 for being installed on the top 3117a of stepped hole 3117 unlocks.

Referring to Figure 14, the proximal end of the core filaments connector 2300 is by closely to being far respectively equipped with block piece 2320 and connection Section 2310.2320 outer diameter of block piece is greater than 2310 outer diameter of linkage section.The linkage section 2310 is threaded onto stepped hole 3117.It is described Aperture of the aperture of the top 3117a of stepped hole 3117 greater than the outer diameter of block piece 2320, the bottom 3117b of stepped hole 3117 Less than the outer diameter of block piece 2320.It can avoid core filaments connector 2300 as a result, to fall off during tune is curved from locking piece 3100.

Rest part structure is with embodiment 1, and details are not described herein.

Embodiment 4, tune bender structure 1000 and seal wire locking mechanism 3000 and above-described embodiment 1-3 structure in the present embodiment It is different.

The structure of the adjustable bending guide wire apparatus of the present embodiment is identical with embodiment 1 to be: a kind of adjustable bending guide wire apparatus, packet Include the sweeping guidewire body 2000 in distal end under free state.The guidewire body 2000 includes hollow outer seal wire 2100 And it is installed on the core filaments 2200 in outer 2100 inner cavity of seal wire.The end of 2100 distal end of outer seal wire and the end of 2200 distal end of core filaments Head is fixedly connected.The adjustable bending guide wire apparatus further includes the tune bender structure for adjusting 2000 distal end bending degree of guidewire body 1000 and the seal wire locking mechanism 3000 for locking 2200 proximal end of core filaments.2200 proximal end of core filaments is pierced by outer seal wire 2100 simultaneously And it is detachably fixed and connect with seal wire locking mechanism 3000.It is close that the tune bender structure 1000 is movably set in guidewire body 2000 End, and outer 2100 proximal end of seal wire is driven to be axially moved relative to 2200 proximal end of core filaments.The seal wire locking mechanism 3000 is detachable It is fixed on and adjusts 1000 proximal end of bender structure.

2000 structure of guidewire body is with embodiment 1-3, and details are not described herein.

As shown in figs. 15 to 20, the tune bender structure 1000 includes proximal handle 1100 and distal handle 1200.The distal end Handle 1200 is along the inner cavity for being axially arranged with perforation.The distal end of the proximal handle 1100, which installs and limits, is fixed on distal handle In 1200 inner cavity.Elastic component 1400 is equipped between the proximal handle 1100 and distal handle 1200.The guidewire body 2000 proximal ends are installed in the inner cavity of distal handle 1200, and the proximal end of the outer seal wire 2100 is limited in distal handle 1200 Inner cavity in.2200 proximal end of core filaments is pierced by distal handle 1200 and locks with the seal wire for being detachably secured to 1200 proximal end of distal handle Determine mechanism 3000 to be detachably connected.The proximal handle 1100 is along being axially arranged with lock slots 1120.The seal wire locking mechanism 3000 cooperations are in lock slots 1120.It is moved axially relatively between the seal wire locking mechanism 3000 and lock slots 1120.

As shown in figures 15-16, the distal handle 1200 penetrates through the close of distal handle 1200 along inner cavity, inner cavity is axially arranged with End and distal end.Distal handle 1200 is respectively equipped with finger ring 1210 in two sides.1200 proximal end of distal handle is equipped with limiting slot 1220, corresponding limiting slot 1220 is detachably connected finite place piece 1500.The locating part 1500 is by the seal wire locking mechanism 3000 limitation lockings are in 1200 proximal end of distal handle.The limiting slot 1220 is extended with card slot 1240.The setting of card slot 1240 is limiting Position 1220 radial outside of slot, and with 1220 connection of limiting slot.The corresponding card slot 1240 of the locating part 1500 is equipped with positive stop lug boss 1520.The positive stop lug boss 1520 is embedded in limit in card slot 1240 and fix.The quantity of positive stop lug boss 1520 is with 1240 quantity of card slot Unanimously, card slot 1240 and positive stop lug boss 1520 are respectively set two in the present embodiment.There are for proximal end hand for the locating part 1500 The limit hole 1510 that 1100 distal end of handle passes through.Limit hole 1510 can be independent hole, be also possible to limit hole 1510 and limit 1220 inner wall of slot surrounds the hole to be formed.The present embodiment is to surround the hole to be formed.Locating part 1500 is assemblied in distal handle 1200, Form limit.

As depicted in figures 18-20,3111 distal end of lock of the locking piece 3100 is equipped with convex edge 1311.Distal handle 1200 The limiting slot 1220 of proximal end setting is also correspondingly provided with groove 1240.Groove 1240 is inserted into the convex edge 1311, and passes through locating part 1500 limit locking piece 3100 in 1200 proximal end of distal handle.

The proximal handle 1100 includes sequentially connected setting elastic component positioning pipe 1180 at the far end, 1140 and of pull rod Finger ring 1110 set on 1140 proximal end of pull rod.The distal end of the proximal handle 1100, which installs and limits, is fixed on distal handle 1200 Inner cavity in, i.e. a part of elastic component positioning pipe 1180 and pull rod 1140, which is installed and limited, is fixed on the interior of distal handle 1200 In chamber.Elastic component 1400 is equipped between the proximal handle 1100 and distal handle 1200.The preferred spring of elastic component 1400, elasticity Part positioning pipe 1180 and 1140 distal end of pull rod pass through limit hole 1510 and are inserted into 1200 inner cavity of distal handle.The spring installs Outside elastic component positioning pipe 1180, the diameter of elastic component positioning pipe 1180 is less than pull rod 1140, then spring proximal end presses against pull rod 1140 proximal ends distally press against the distal end of 1200 inner cavity of distal handle.

The proximal handle 1100 is along being axially arranged with lock slots 1120.Lock slots 1120 are interior with elastic component positioning pipe 1180 Chamber connection.Specifically, lock slots 1120 are arranged on pull rod 1140.The cooperation of seal wire locking mechanism 3000 is in lock slots 1120 In.Seal wire locking mechanism 3000 can move axially between each other with lock slots 1120.Seal wire locking mechanism 3000 with from elasticity The core filaments 2200 being pierced by part positioning pipe 1180 are fixedly connected.

The seal wire locking mechanism 3000 includes locking piece 3100.The locking piece 3100 is installed in lock slots 1120, Its distal end is limited fixed in limiting slot 1220 by locating part 1500.Locking piece of the structure of locking piece 3100 with embodiment 3 Essentially identical, difference is that 3111 shape of lock is rectangular-shape, is equipped with convex edge 1311 in 3111 distal end of lock, remaining structure is same Embodiment 3, details are not described herein.

As seen in figs. 15-17, proximal handle 1100, the distally mounted handle 1200 of spring 1400 inner cavity 1220 in.It leads The locking piece 3100 of silk locking mechanism 3000 is mounted in the lock slots 1120 of proximal handle 1100.The lock of locking piece 3100 3111 convex edge 1311 is caught in the groove 1230 of distal handle 1200, and proximal handle 1100 is connect with distal handle 1200. On the distally mounted handle 1200 of locating part 1500, locking mechanism 1300 is detachably fixed with distal handle 1200 and is connect.Closely End handle 1100 can be moved forward and backward by the limit hole 1510 on locating part 1500.Seal wire locking mechanism 3000 is whole can be close It holds in the lock slots 1120 of handle 1100 and is moved forward and backward.The elastic component positioning pipe 1180 of proximal handle 1100 has an inner cavity 1130. There is limit hole 1131 in inner cavity 1130, the diameter of limit hole 1131 is greater than 2300 outer diameter of core filaments connector of guidewire body 2000, Less than outer 2100 outer diameter of seal wire.Limit hole 1131 collectively constitutes a coaxial unobstructed inner cavity with 1200 inner cavity of distal handle.Core filaments The core filaments connector 2300 of 2200 proximal ends setting passes through limit hole 1131, reaches leading for the lock 3111 of seal wire locking mechanism 3000 At pilot hole 3114.At this point, pressing lock pin 3112, guide hole 3114 and the top 3117a of stepped hole 3117 form the coaxial of connection Hole continues to penetrate guidewire body 2000, and when outer 2100 end face of seal wire offsets with 1131 end face of limit hole, guidewire body 2000 is not It can continue to penetrate, illustrate that guidewire body 2000 has penetrated in place.At this point, the linkage section of core filaments connector 2300 and lock pin 3112 are right Together.Lock pin 3112 is unclamped, under the effect of resilient key 3113, lock pin 3112 sets back, the linkage section card of core filaments connector 2300 Enter in the bottom 3117b of stepped hole 3117, so that guidewire body 2000 is fixedly connected with locking with handle 1000.At this point, keeping Distal handle 1200 is motionless, drives proximal handle 1100, and elastic component 1400 compresses, and the outer seal wire 2100 of guidewire body 2000 is limiting Position hole 1131 moves axially under acting on along core filaments 2200, and 2000 distal end of guidewire body gradually becomes straight state by bending state；It removes External force, proximal handle 1100 set back under the action of elastic component 1400, and outer seal wire 2100 returns to original position, guidewire body 2000 Reply initial angle.When needing to dismantle, lock pin 3112 is pressed, guide hole 3114 and 3117 top 3117a of stepped hole form connection Coaxial aperture, core filaments connector 2300 deviates from from locking piece 3100, and guidewire body 2000 unlocks, by it from adjusting curved hand grip It is extracted out in 1300 inner cavities.

Embodiment 5, the present embodiment are improvement on the basis of embodiment 4, wherein guidewire body 2000, tune bender structure 1000 With embodiment 4, same section is repeated no more.Difference place is that seal wire locking mechanism structure is different.

As shown in fig. 21-22, the seal wire locking mechanism of the present embodiment is substantially the same manner as Example 2, cooperates in proximal handle Locking piece 3100 in 1100 lock slots 1120 is rectangular parallelepiped structure, is axially arranged with connecting hole 3150 along it.The core filaments connect Fitting 2300 and the connecting hole 3150 are spirally connected fixation.Core filaments connector 2300 is equipped with external screw thread.Interior spiral shell is set in connecting hole 3150 Line 3151.The locking piece 3100 is screwed onto 2200 proximal end of core filaments, and distal end is equipped with convex edge 1311, to cooperate distal handle 1200 Groove 1230, locking piece 3100 is locked in distal handle 1200.

To sum up, the utility model is fixed in distal end by the outer seal wire of guidewire body and core filaments, by adjusting bender structure to drive core Relative displacement occurs between silk and outer seal wire, so that guidewire body distal end can change in moulding state and straight state.By It is fixedly connected in seal wire locking mechanism with core filaments, the utility model can directly reverse core filaments, eliminate the torsion of the spring of outer seal wire Turn gap, it is torsion stronger, and can avoid adjusting and bend through core filaments proximal end bending in journey, seal wire torsion is transferred to finger by more conducively operator Positioning is set.Meanwhile adjusting bender structure that can load and unload at any time with guidewire body, device is carried out convenient for directly passing through seal wire when subsequent procedures operation Tool exchange, saves operating time.In addition guidewire body is only made of outer seal wire and core filaments, and components are few, and break down risk Probability is low；Processing technology is simple, convenient for operation.

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 (18)

1. a kind of adjustable bending guide wire apparatus, including guidewire body, the guidewire body includes hollow outer seal wire and is installed on outer The end of core filaments in guidewire lumen, the outer wire distal is fixedly connected with the end of core filaments distal end；The core filaments distal end is set It is shaped as forniciform distal portion, guidewire body distal end is in bending in a free state；It is characterized in that, the adjustable bending Guide wire apparatus further includes the tune bender structure for adjusting guidewire body distal end bending degree and the seal wire for locking core filaments proximal end Locking mechanism；

The core filaments proximal end is pierced by outer seal wire and is detachably fixed with seal wire locking mechanism and connect；

The tune bender structure is movably connected in guidewire body proximal end, and outer guidewire proximal is driven axially to transport relative to core filaments proximal end It is dynamic；

The seal wire locking mechanism is detachably secured to adjust bender structure proximal end.

2. adjustable bending guide wire apparatus according to claim 1, which is characterized in that the tune bender structure is movably set in seal wire Outside proximal, and the tune bender structure includes hollow tune curved hand grip, limits to be arranged in and adjust the tune of only rotation on curved hand grip curved Cylinder and the driving tube being installed in tune curved hand grip inner cavity；

It is described that curved cylinder is adjusted engage with driving tube, when curved cylinder being adjusted to rotate drive driving tube in tune curved hand grip inner cavity axially movable；

The corresponding driving tube cavity in the driving tube proximal end is provided with limit hole, and the limit hole internal diameter is less than outer seal wire outer diameter, institute Outer guidewire proximal limit is stated in driving tube, the proximal end of the core filaments is pierced by detachably solid with seal wire locking mechanism from limit hole Fixed connection.

3. adjustable bending guide wire apparatus according to claim 2, which is characterized in that the distal portion of the driving tube, which is equipped with, to be slided Block, the tune curved hand grip are provided with connector along axial direction, and the sliding block cooperation is adjusted curved cylinder to engage, adjusted curved in connector and with described Band movable slider is axially moveable in connector when cylinder rotation.

4. adjustable bending guide wire apparatus according to claim 2, which is characterized in that the tune curved hand grip distal end is detachably fixed There is capping, described that curved cylinder is adjusted to be set in the tune curved hand grip distal end, the capping will adjust curved collet chuck to hold simultaneously with curved hand grip cooperation is adjusted Limit only rotates on adjusting curved hand grip.

5. adjustable bending guide wire apparatus according to claim 2, which is characterized in that in driving tube proximal end, restraining position ring block is set, The stop collar central through hole is the limit hole, and the internal diameter of the stop collar central through hole is less than outer seal wire internal diameter, outer seal wire Proximal face is pressed on stop collar, and the proximal end of core filaments is pierced by from the stop collar central through hole.

6. adjustable bending guide wire apparatus described in -5 any one according to claim 1, which is characterized in that the seal wire locking mechanism Including the locking piece for locking core filaments proximal end, the locking piece is detachably secured to adjust bending of the hand handle proximal end.

7. adjustable bending guide wire apparatus according to claim 6, which is characterized in that the core filaments proximal end is connected equipped with core filaments Part, the core filaments are by being detachably fixed connection between core filaments connector and locking piece.

8. adjustable bending guide wire apparatus according to claim 7, which is characterized in that in the tune curved hand grip proximal face is provided with Recessed limiting slot, the locking piece are placed in limiting slot and are encapsulated in limiting slot by tail-hood.

9. adjustable bending guide wire apparatus according to claim 8, which is characterized in that the locking piece distal end is axially arranged with and drives The coaxial lock hole of dynamic pipe, the core filaments connector are actively installed in lock hole；The locking piece wall surface edge is axially arranged with At least one expansion joint.

10. adjustable bending guide wire apparatus according to claim 9, which is characterized in that the lock hole inner wall shape and core Silk connector outside wall surface shape cooperation is consistent.

11. adjustable bending guide wire apparatus according to claim 7, which is characterized in that the distal end end face of the locking piece is along axis To connecting hole is equipped with, be spirally connected fixation between the core filaments connector and the connecting hole.

12. adjustable bending guide wire apparatus according to claim 7, which is characterized in that the locking piece include lock, lock pin and Deformable resilient key；

The lock is provided with the guide hole for installing core filaments connector along axial direction, parallel with guide hole to be provided with elastic pin hole, with guiding Hole and elastic pin hole vertical direction are provided with lockpin hole, the lockpin hole and guide hole and elastic pin hole penetrates through；

The lock pin is installed in the lockpin hole, and top is pierced by lock；

The lock pin bottom be provided with it is corresponding with elastic pin hole pass through hole, the resilient key is installed on the elastic pin hole and passes through Kong Zhong, by lock pin spacing in lockpin hole；

Stepped hole is correspondingly provided with guide hole on the lock pin；The top aperture of the stepped hole is greater than bottom part aperture diameter；

Spacing between the guide hole and elastic pin hole meets: under free state, guide hole connection corresponding with stepped hole bottom, The core filaments connector for being installed on stepped hole bottom is locked；Pressing lock pin makes resilient key flexible deformation, and lock pin movement is so that lead Pilot hole connection corresponding with stepped hole top, is installed on the core filaments connector at the top of stepped hole and unlocks.

13. adjustable bending guide wire apparatus according to claim 12, which is characterized in that the proximal end of the core filaments connector is by close To far block piece and linkage section is respectively equipped with, the linkage section is threaded onto stepped hole, and the top aperture of the stepped hole is greater than Block piece outer diameter, stepped hole bottom part aperture diameter be less than block piece outer diameter.

14. adjustable bending guide wire apparatus according to claim 1, which is characterized in that the tune bender structure includes proximal handle And distal handle；

For the distal handle along the inner cavity for being axially arranged with perforation, the distal end of the proximal handle, which installs and limits, is fixed on distal end hand In the inner cavity of handle, elastic component is equipped between the proximal handle and distal handle；

The guidewire body proximal end is installed in the inner cavity of distal handle, and the outer seal wire is limited in the inner cavity of distal handle In, core filaments proximal end is pierced by distal handle and is detachably connected with the seal wire locking mechanism for being detachably secured to distal handle proximal end；

The proximal handle is along lock slots are axially arranged with, and the seal wire locking mechanism cooperation is in lock slots, the seal wire locking It is moved axially relatively between mechanism and lock slots.

15. adjustable bending guide wire apparatus according to claim 14, which is characterized in that the seal wire locking mechanism includes locking Part, the locking piece include lock, lock pin and deformable resilient key；

The lock is provided with the guide hole for installing core filaments connector along axial direction, parallel with guide hole to be provided with elastic pin hole, with guiding Hole and elastic pin hole vertical direction are provided with lockpin hole, the lockpin hole and guide hole and elastic pin hole penetrates through；

The lock pin is installed in the lockpin hole, and top is pierced by lock；

The lock pin bottom be provided with it is corresponding with elastic pin hole pass through hole, the resilient key is installed on the elastic pin hole and passes through Kong Zhong, by lock pin spacing in lockpin hole；

Stepped hole is correspondingly provided with guide hole on the lock pin；The top aperture of stepped hole is greater than bottom part aperture diameter；

Spacing between the guide hole and elastic pin hole meets: under free state, guide hole connection corresponding with stepped hole bottom, The core filaments connector for being installed on stepped hole bottom is locked；Pressing lock pin makes resilient key flexible deformation, and lock pin movement is so that lead Pilot hole connection corresponding with stepped hole top, is installed on the core filaments connector at the top of stepped hole and unlocks.

16. adjustable bending guide wire apparatus according to claim 15, which is characterized in that the distal handle proximal end is equipped with limit Slot, corresponding limiting slot are detachably connected finite place piece, and the locating part is by the seal wire locking mechanism limitation locking in distal end hand Handle proximal end.

17. adjustable bending guide wire apparatus according to claim 16, which is characterized in that distal handle proximal end limiting slot prolongs Stretching has card slot, and the locating part corresponds to card slot equipped with positive stop lug boss, and the positive stop lug boss is embedded in limit in card slot and fix, the limit There are the limit holes passed through for proximal handle distal end for position part.

18. adjustable bending guide wire apparatus according to claim 16, which is characterized in that the lock distal end is equipped with convex edge, institute It states limiting slot and is correspondingly provided with groove, groove is inserted into the convex edge, and is limited locking piece in distal handle proximal end by locating part.