CN206576895U - Spring stitching devices - Google Patents

Abstract

The utility model provides a kind of spring stitching devices, including：Two with rotation direction or symmetrically arranged stable disk；Connection coil that two stable disks are linked together, elasticity；The stable disk, connection coil are made by shape memory alloy material.In use, two stable disks are stable in sutural lamina one end, two stable disks are connected, tensed, further two stable disks by connection coil in the sutural lamina other end, drive gap closure.The spring stitching devices intervention sutural treatment that the utility model is provided, wound is small, recovers fast；Suture is complete, and is further compacted with the reply suture of later stage memorial alloy；Operating time can be reduced, mitigates the postoperative complication of patient with operation；The volume/area that spring stitching devices occupy atrium/valve is small；Indication is wide, and the gap position that sheath can pass through can be sutured；It is simple to operate, reduce operating difficulty.

Description

Spring stitching devices

Technical field

The utility model is related to a kind of spring seam for the treatment of backflowed for acleistocardia, mitral reflux, three valves Attach together and put, belong to technical field of medical instruments.

Background technology

In Europe, mainly stitched currently for acleistocardia using Nobels Stitch EL Nobel's stitching devices Close treatment.

Intervention sutural treatment method for feature mitral valve insufficiency (FMR) or tricuspid insufficiency mainly has Two kinds of annulus forming techniques have obtained clinical confirmation, and the apparatus being related to is the MitraClip device bicuspid valve respectively Clamping device and the Mitralign device bicuspid valve anchors are attached together and put.

Above two annulus forming technique wound is big, and operating time is long, and the postoperative complication of patient is serious, while the behaviour that performs the operation Make that difficulty is higher, be not easy to the popularization treatment of operation.

Utility model content

The technical problems to be solved in the utility model is the treatment backflowed in acleistocardia, mitral reflux, three valves In, how to reduce wound, shorten operating time, reduction operation technique difficulty, ensure surgical effect.

In order to solve the above-mentioned technical problem, the technical solution of the utility model is to provide a kind of spring stitching devices, and it is special Levy and be, including：

Two with rotation direction or symmetrically arranged stable disk；

Connection coil that two stable disks are linked together, elasticity；

The stable disk, connection coil are made by shape memory alloy material.

Preferably, the stable disk is conical helical pattern spring.

Preferably, a diameter of 2-6mm of the maximum disc of the stable disk, a diameter of 0.08- of silk material of the stable disk 0.50mm, the spiral number of turns of the stable disk are enclosed for 1-5, and the taper of the stable disk is -20 ° -20 °.

Preferably, the stable disk is net tray shape structure.

Preferably, the stable disk is rugosity diaphragm structure.

Preferably, connection coil middle below two stable disks.

Preferably, the stable disk, connection coil are formed by silk material braiding, and the silk material diameter of the connection coil is 1-1.5 times of the stable disk silk material diameter.

Preferably, the silk material is nitinol alloy wire.

Preferably, two stable disks that the gap for driving sutural lamina is closed are stablized in sutural lamina one end, described Connect coil and be located at the sutural lamina other end.

Minimally invasive intervention operation implanted treatment acleistocardia, feature mitral valve insufficiency, three valves backflow and demonstrate,proved Bright conventional surgical of comparing opens chest treatment with more preferable therapeutic effect and less complication, and the utility model is sutured by spring Device, close using the method for suture oval foramen or reduce mitral annulus area, so as to treat acleistocardia and two/tri- Cusp incompetence, the clinical problem that can be backflowed with more scientific rational solution valve.

Compared with prior art, the spring stitching devices that the utility model is provided have the advantages that：

(1) sutural treatment is intervened, wound is small, recovers fast；

(2) suture complete, and further compacted with the reply suture of later stage memorial alloy；

(3) operating time can be reduced, mitigates the postoperative complication of patient with operation；

(4) spring stitching devices occupy atrium/valve volume/area it is small；

(5) indication is wide, and the gap position that sheath can pass through can be sutured；

(6) it is simple to operate, reduce operating difficulty.

Brief description of the drawings

Fig. 1 a are the spring stitching devices schematic perspective view that embodiment 1 is provided；

Fig. 1 b are the spring stitching devices front view that embodiment 1 is provided；

Fig. 1 c are the spring stitching devices top view that embodiment 1 is provided；

Fig. 2 a pass through defect/valve in being performed the operation for intervention with seal wire；

Fig. 2 b are that outer sheath passes through defect/valve along seal wire；

Fig. 3 a are inner core tube along by conduit is through defect/valve and hook handles defect/valve one end；

Fig. 3 b are lancet puncture defect/valve other end；

Fig. 3 c are to be conveyed through puncture needle and discharge stable disk；

Fig. 3 d is withdraw puncture needle and discharge another stable disk in defect/valve opposite side, while movable core bar is worn Interval/valve is pierced, its head end hook hooks this stable disk；

Fig. 3 e are that movable pin head end hook opens；

Fig. 3 f are movable pin head end hook closure；

Fig. 3 g are that movable core bar is stable in the other end through defect/valve with another stable disk；

Fig. 4 a are the inner core tube of embodiment 2 along by conduit is through defect/valve and hook handles defect/valve two ends；

Fig. 4 b are the lancet puncture defect of embodiment 2/valve one end；

Fig. 4 c are that embodiment 2 conveys through puncture needle and discharges stable disk；

Fig. 4 d are that embodiment 2 withdraws puncture needle with another stable disk puncture other end interval/valve；

Fig. 4 e are that embodiment 2 discharges this stable disk stable disk and withdraws puncture needle；

Fig. 5 is that Fig. 3 series and Fig. 4 series of conduits are withdrawn from after human body and illustrated；

Fig. 6 a are one in the presence of the bicuspid valve backflowed；

Fig. 6 b are that the stitching devices suture valve two ends provided using embodiment 1 are backflowed so as to treat valve；

Fig. 6 c are to be backflowed in the middle of the stitching devices suture valve provided using embodiment 1 so as to treat valve；

Fig. 7 a are one in the presence of the tricuspid valve backflowed；

Fig. 7 b are that the stitching devices suture valve intersection of valve three provided using embodiment 1 is backflowed so as to treat valve；

Fig. 8 is the spring stitching devices schematic diagram that embodiment 3 is provided；

Fig. 9 is the spring stitching devices schematic diagram that embodiment 4 is provided.

Embodiment

With reference to specific embodiment, the utility model is expanded on further.It should be understood that these embodiments are merely to illustrate this Utility model rather than limitation scope of the present utility model.In addition, it is to be understood that reading the content of the utility model instruction Afterwards, those skilled in the art can make various changes or modifications to the utility model, and these equivalent form of values equally fall within this Shen Please appended claims limited range.

As shown in Figure 1a, the spring stitching devices schematic perspective view provided for the present embodiment, described spring stitching devices It is made up of shape memory alloy material, for example Nitinol.It is main to include two with rotation direction or symmetrical stable disk 1 and by two The elastic connection coil 2 that stable disk 1 links together.

The spring stitching devices front view that Fig. 1 b provide for the present embodiment, it can be seen that stable disk 1 is a cone-type spiral Shape spring, connection coil 2 is located at two lower section middles of stable disk 1.During work, two stable disks 1 are stable in sutural lamina one end, Connection coil 2 connects two stable disks 1 in the sutural lamina other end, and further two stable disks 1, drives gap to close Close, as shown in Figure 5.

The spring stitching devices top view that Fig. 1 c provide for the present embodiment, the maximum disc diameter of stable disk 1 is in 2-6mm, line footpath Between 0.08-0.50mm, stable disk spiral number of turns are between 1-5 circles, and stable disk taper is between -20 ° -20 °.The present embodiment In, stable disk spiral number of turns shown in Fig. 1 c are 3.5 circles, and stable disk taper is 10 degree.Connection coil 2 is one and returned containing 1-2 The spring design of volution, Fig. 1 c show a turning circle design.The connection line footpath of coil 2 is 1-1.5 times of the line footpath of stable disk 1.

The specifically used method for the spring stitching devices that the present embodiment is provided is as follows：

As shown in Figure 2 a and 2 b, identical with the intervention operation of conventional congenital heart disease, seal wire sets up track, plugging device intervention conveying Device passes through defect/valve along by seal wire, then extracts seal wire out and expansion is managed.

As shown in Figure 3 a, in occluder intervention conveying device (hereinafter referred to as conduit) delivered inside inner core tube, inner core tube away from There is a breach at head end 20-40cm, puncture needle can be passed through through this.There is a mobilizable core bar in inner core tube, core bar leading portion has One retractable hook, hook folding is controlled by core bar inner core, is pushed away before core bar inner core, then hook folding；Core bar inner core is withdrawn, then Hook is closed.So hook can catch spring stitching devices one end.Core bar inner core tube head end is curved into 180 degree, can catch on scarce Damage/gap the other end.

As shown in Figure 3 b, inner core tube is withdrawn, inner core tube head end is caught on defect/gap other end.Conduit is withdrawn again, is exposed Gap position, puncture needle is released through breach, punctures interval/valve, spring is released from puncture needle, release spring one end is such as schemed Shown in 3c.Spring is made by marmem, with super-elasticity and SME.When spring is pushed out, spring is returned Rewinding is curved.

As shown in Figure 3 d, hold spring, and movable core bar pushed through inner core tube, puncture interval/valve, and before push away core bar Inner core, makes hook folding.In defect/gap other end release spring other end, adjusting movable core bar makes hook catch spring Stitching devices other end termination, such as Fig. 3 e.Then release spring.

As shown in figure 3g, movable core bar is withdrawn, spring is moved to interval/valve opposite side through puncture orifice, treats that spring is rolled up Core bar inner core is pushed away before after song winding, makes hook folding, spring, such as Fig. 3 f is decontroled.

Preceding pushing catheter, and inner core tube is withdrawn, then together withdraw from human body.

It is that conduit and innermost tube withdraw from rear spring stitching devices nearside spring because SME is naturally curved such as Fig. 5 Song, tenses septal defect/valve.

The spring stitching devices that the present embodiment is provided are splendid a utilization and design to suturing skill, and its design is former Reason is that the reply type using spring reaches sewing effect to reduce gap both sides spacing.

Such as Fig. 6 a and Fig. 6 b, all repairing techniques of bicuspid valve valve in surgical operation are used for reference, bicuspid valve is sutured using this spring Device, carries out sewing by two ends muscle under the side lobe of bicuspid valve two and pulls off, and diminution annulus area is reached by reducing annulus girth, Backflowed so as to treat valve.

Such as Fig. 6 a and Fig. 6 c, mitral leaflet middle part repairing technique in surgical operation is used for reference, this spring is used to bicuspid valve Stitching devices, realize that a bicuspid valve splits into two bicuspid valve to carrying out suture in bicuspid valve valve, by increasing valve mouthful quantity The purpose for reducing annulus area is reached, is backflowed so as to treat valve.

Such as Fig. 7 a and Fig. 7 b, surgical operation tricuspid valve repairing technique is used for reference, three valves are realized by suturing two valves in tricuspid valve Become two valves, a tricuspid valve is changed into two bicuspid valve, the purpose of diminution annulus area is reached by increasing valve mouthful quantity, so that Treatment valve backflows.

Embodiment 2

The spring stitching devices and the difference of embodiment 1 that the present embodiment is provided are：Occluder intervention conveying device is (following Abbreviation conduit) inner core tube head end bifurcated be two, two are curved into 180 degree, defect/gap can be caught on as anchor another End.Specific method is as follows：

As shown in fig. 4 a, inner core tube is conveyed in catheter interior, inner core tube at head end 20-40cm away from having a breach, Ke Yijing This passes through puncture needle.Inner core tube head end bifurcated is two, and two curved into 180 degree, defect/gap can be equally caught on to anchor another One end.

As shown in Figure 4 b, inner core tube is withdrawn, inner core tube head end is caught on defect/gap other end.Conduit is withdrawn again, is exposed Gap position, puncture needle is released through breach, punctures interval/valve, spring is released from puncture needle, release spring one end is such as schemed Shown in 4c.Spring is made by marmem, with super-elasticity and SME.When spring is pushed out, spring is returned Rewinding is curved.

As shown in figure 4d, outer sheath 180 degree in rotating, makes inner core tube gap position towards opposite side interval/valve, fixed Inner core tube, releases puncture needle, puncture needle drives this spring stitching devices to puncture opposite side interval/valve, from puncture needle through breach Middle release spring, release spring one end, spring curling winding such as Fig. 4 e.

Before send outer sheath, and by branch's innermost tube remove into outer sheath drop back out defect/gap, withdraw from human body.

It is that conduit and innermost tube withdraw from rear spring stitching devices nearside spring because SME is naturally curved such as Fig. 5 Song, tenses septal defect/valve.

Embodiment 3

As Fig. 8, the present embodiment spring stitching devices provided and the difference of embodiment 1 are：Stable disk is by niti The net tray shape structure being woven into.

Embodiment 4

As Fig. 9, the present embodiment spring stitching devices provided and the difference of embodiment 1 are：Stable disk is rugosity film Chip architecture.

Claims (9)

1. a kind of spring stitching devices, it is characterised in that including：

Two with rotation direction or symmetrically arranged stable disk (1)；

Connection coil (2) that two stable disks (1) are linked together, elasticity；

The stable disk (1), connection coil (2) are made by shape memory alloy material.

2. a kind of spring stitching devices as claimed in claim 1, it is characterised in that：The stable disk (1) is conical helical pattern Spring.

3. a kind of spring stitching devices as claimed in claim 2, it is characterised in that：The maximum disc diameter of the stable disk (1) For 2-6mm, a diameter of 0.08-0.50mm of silk material of the stable disk (1), the spiral number of turns of the stable disk (1) are enclosed for 1-5, The taper of the stable disk (1) is -20 ° -20 °.

4. a kind of spring stitching devices as claimed in claim 1, it is characterised in that：The stable disk (1) is net tray shape structure.

5. a kind of spring stitching devices as claimed in claim 1, it is characterised in that：The stable disk (1) is rugosity diaphragm Structure.

6. a kind of spring stitching devices as described in any one of Claims 1 to 5, it is characterised in that：The connection coil (2) sets The middle below two stable disks (1).

7. a kind of spring stitching devices as described in any one of claim 2~4, it is characterised in that：The stable disk (1), company Wiring circle (2) is formed by silk material braiding, and the silk material diameter of the connection coil (2) is the stable disk (1) silk material diameter 1-1.5 times.

8. a kind of spring stitching devices as claimed in claim 7, it is characterised in that：The silk material is nitinol alloy wire.

9. a kind of spring stitching devices as claimed in claim 1, it is characterised in that：What the gap for driving sutural lamina was closed Two stable disks (1) are stable in sutural lamina one end, and the connection coil (2) is located at the sutural lamina other end.