WO2016192481A1 - Heart valve repair device - Google Patents

Heart valve repair device Download PDF

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Publication number
WO2016192481A1
WO2016192481A1 PCT/CN2016/079906 CN2016079906W WO2016192481A1 WO 2016192481 A1 WO2016192481 A1 WO 2016192481A1 CN 2016079906 W CN2016079906 W CN 2016079906W WO 2016192481 A1 WO2016192481 A1 WO 2016192481A1
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WO
WIPO (PCT)
Prior art keywords
valve repair
valve
apparatus according
artificial
puncture needle
Prior art date
Application number
PCT/CN2016/079906
Other languages
French (fr)
Chinese (zh)
Inventor
孟坚
周晓军
代高旭
周庆亮
Original Assignee
北京迈迪顶峰医疗科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Priority to CN201510306048.X priority Critical
Priority to CN201510306048.XA priority patent/CN104873307A/en
Application filed by 北京迈迪顶峰医疗科技有限公司 filed Critical 北京迈迪顶峰医疗科技有限公司
Publication of WO2016192481A1 publication Critical patent/WO2016192481A1/en

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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/24Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices

Abstract

A heart valve repair device comprises: a sealed sheath (1); a catcher (2) located at a distal end of the sealed sheath (1) for catching and fixing a heart valve cusp (15); a puncture needle (3) located in the sealed sheath (1) for puncturing the heart valve cusp (15) caught by the catcher (2); an artificial chordae tendineae (4) capable of puncturing into the heart valve along with the puncture needle (3) and being for repairing the heart valve; and a handle (5) located at a proximal end of the sealed sheath (1) and used to operate the heart valve repair device.

Description

Valve repair device FIELD

The present invention relates to a technology field of medical devices, particularly to a transapical valve repair device.

Background technique

The normal human heart has four chambers, namely: the left ventricle, left atrium, right ventricle and right atrium. Left ventricle and left atrium communicate, communicate with the right atrium and right ventricle. The heart has four valves, valve of the left ventricle and left atrium for the mitral valve and right ventricle and right atrium tricuspid, aortic valve between the left ventricle and aortic valve between the right ventricle and the pulmonary artery the valve is the pulmonary valve.

And three mitral valve leaflets generally have 2-3, a leaflet tip annulus, valve leaflets by the chordae fixed to the papillary muscle.

The normal way valve may protect the blood flow smoothly, effectively pump blood out of the chamber without reflux. A variety of diseases, such as rheumatic heart disease, valvular endocarditis caused by lesions of the valve function is compromised, stenosis and regurgitation are common valvular disease. Since the valve stenosis is not fully open, leading to blocked blood flow, leading to calcification of the leaflets thickening is a common cause of stenosis. Regurgitation due to leaflet can not be completely closed, causing blood to flow back into the pumping chamber, the valve ring expansion, leaflet prolapse, leaflet interruption that is the main cause of regurgitation.

Valvular diseases, aortic valve stenosis and often appear in the pulmonary valve, mitral and tricuspid valves and more reflux occurs. Stenosis and regurgitation occur simultaneously will greatly increase the burden on the heart, can lead to serious consequences.

Treatment programs valvular disease in two ways: replacement or repair.

For aortic and pulmonary valve stenosis, since the flap can not stenotic lesion repair, so the traditional treatment is replaced with a mechanical valve or a bioprosthetic valve; relative to the valve repair, replacement valve there is a high mortality rate, the life of the valve limited lifetime shortcomings anticoagulation, therefore, mitral valve and three more in the way of adoption repair treatment. Traditional valve repair surgery to thoracotomy surgery, to the establishment of cardiopulmonary bypass cardiac arrest, it requires a lot of manpower with the requirements of the surgeon is extremely high, extremely complex surgery, such as valve repair surgery is often necessary to cut prolapse section, row annuloplasty, or implantation of artificial chordae, sometimes these methods require the integrated use to patients who bring a great challenge. With the need for cardiopulmonary bypass cardiac arrest heart-lung machine, easily lead to complications, such as stroke, myocardial stunning, lung function decline and so on. Since the surgery is done in cardiac arrest, it is difficult to estimate the length of the implanted artificial tendons, implantation of artificial chordae too long or too short make the disease worse, the surgeon can only be determined empirically implanted artificial tendon cable length, which brought a great challenge to the surgeon.

Mitral valvuloplasty and look artificial valve replacement surgery is the most effective method for the treatment of mitral insufficiency, but due to cardiopulmonary bypass surgery requires technical support, trauma to the patient of a larger, and more complications for elderly patients patients with high mortality and complications, in recent years, percutaneous mitral valve repair more rapid development, mainly involved in annuloplasty, liposuction suture technique and mitral clamp technique, in which the MitraClip efficacy most reliable, fast in clinical practice, which is supplied to the vicinity of the mitral valve by way transseptal may be implanted to a clip, the free edge of the leaflets before and after the fixing nip, so that the leaflets of systole and good to reduce regurgitation.

MitraClip problems as follows: from the femoral artery over a long sheath intervention, operational difficulties, long operation time; surgery because the use of large size sheath may remain after the atrial septum residual leakage; unicellular into the mitral two holes, will lead to reduced mitral valve area; health valve and valve prolapse secured together, the valve may cause changes in health healthy cable tension and accelerate its degradation.

Urgent need for surgical methods and apparatus for a minimally invasive beating heart valve to complete the repair, the process may readily measure the length of an implantable artificial chordae, can reduce the strength of the surgeon and the surgical difficulty.

To solve the above problems, the present invention provides an artificial implant health index a minimally invasive means. The device may be implanted in a minimally invasive manner artificial chordae, mitral valve or tricuspid valve repair. Characteristics of the device is completed in the beating heart surgery, the surgery can help of modern video equipment, such as thoracoscopy, laparoscopy navigation accurate implantation of an artificial health index. This device shorten the operation time, reduce the degree of trauma, surgery reduces the difficulty and risk of surgery.

SUMMARY

(A) To solve technical problems

Object of the present invention is to provide a valve repair device which shortens the operative time, decreased degree of trauma, surgery to reduce the difficulty and surgical risk.

(B) Technical Solution

To solve the above technical problem, the present invention provides a valve repair device, wherein the valve repair device comprising: a sealing sheath; a sealing sheath for capturing the distal end, fixing the leaflets catcher; of the sealing intrathecal captured by the puncture needle flap is captured; a puncture needle with said intake valve, an artificial valve for repairing a tendon; proximal end of the sealing sheath, means for operating said valve repair operation of the handle.

Preferably, the seal around the distal end with a balloon sheath.

Preferably, the sheath is made of a sealing sheath, the sheath comprising an inner tube and an outer tube.

Preferably, the sheath is connected to one end of the locking valve, and the other end in communication with the airbag, the airbag having such cavities to allow expansion of the fluid to pass between said inner and outer tubes.

Preferably, the inner tube and the outer tube is made of a metallic material or polymer material.

Preferably, said medical balloon is a butyl rubber, natural rubber or other polymeric material.

Preferably, the mechanical catcher captures capture or negative.

Preferably, the trap is a ring made of a metal or polymer material, jaw, clamp or long pipe.

Preferably, the trap is a long tube shape, the shaft length of the puncture needle tube parallel.

Preferably, the artificial chordae loaded in the lumen of the puncture needle or the outside of the puncture needle.

Preferably, the puncture needle having a needle end to prevent the valve leaflets punctured off barbs or tennis structure.

Preferably, the barbs or tennis structure after said artificial tendon is released securely recovered by the catcher structure recyclable.

Preferably, the artificial chordae made the ePTFE, Nitinol, or other polymer materials.

Preferably the structure of the artificial tendon is T-shaped, mushroom single, double knot or mushroom shape.

Preferably, the handle having a puncture needle for ejecting and releasing puncturing leaflet artificial chordae ejection release means.

Preferably, the handle has means for adjusting the selection and puncturing leaflet artificial chordae to release simultaneously or step-wise.

Preferably, said ejection release means is a handle means of the ejection force and the force generated by the release spring, hydraulic or pneumatic high spring constants.

(Iii) the beneficial effects

Advantages valve repair device of the present invention is a beating heart to realize a small incision insertion, repair the damaged leaflets. Puncture into the ventricle through the apex, using ultrasound navigation catchers need for implantation of an artificial chordae leaflet capture position, which releases the piercing leaflets and artificial tendons, after the withdrawal of the adjusting device under ultrasound imaging artificial tendons the length of the cable, the other end is fixed to the apex, to complete the implantation of artificial chordae.

BRIEF DESCRIPTION

In order to more clearly illustrate the technical solutions in the embodiments or the prior art embodiment of the present invention, the following figures will be required for use in embodiments or the prior art are introduced briefly in the embodiment. Apparently, the drawings in the following description are only some embodiments of the present invention, those of ordinary skill in the art is concerned, without creative efforts, we can derive from these drawings other drawings.

Figure 1a is a valve repair device assembly of FIG;

Figure 1b is a valve repair device head end cross-sectional view;

Another simple device assembly of FIG. 2a is a valve repair device;

Another simple apparatus head valve repair device 2b is an end cross-sectional view;

3 is another trap to capture leaflet mechanical and puncturing a schematic view;

FIG 4 is a T-type artificial chordae puncture schematic released;

5 is a schematic view of an elastic T-release puncturing artificial tendons;

FIG 6 is a single leaf occluder artificial chordae schematic released;

FIG 7 is a double leaf occluder artificial chordae schematic released;

8 is a schematic view of the winding-line junction artificial tendons;

9 is a schematic view of a winding wire junction artificial tendons;

10 is a schematic view of the release of the single-wire junction artificial tendon;

11 is a schematic view of the release wire junction artificial tendons;

FIG 12 is a single-line winding of another junction artificial tendons and releasing a schematic view;

13 is another two-wire junction of artificial chordae and releasing a schematic view;

14 is a schematic view of a valve repair operation position of the device;

15 is a schematic view of the artificial chordae after repair.

The reference numerals are as follows: a sealing sheath 2. The needle trap 3. 4. 5. Handle 6. artificial chordae airbag 7. Connector 8. 9. tennis vacuum port 10. The push rod structure; 11 keys. 13. The push button release 12. The shaft 15 14.U jaw flap 16. The operation shaft 17. The lumen of artificial chordae 18.T; 19 T resilient artificial chordae 20. univalent occluder artificial tendon 21. cable umbrella leaf 22. leaf 23 under the umbrella cord 24. slotted; 25-line wire junction 26. the junction of artificial chordae artificial chordae suture pad 27. 28. apex.

detailed description

In conjunction with the accompanying drawings and the following embodiments, specific embodiments of the present invention will be further described in detail. The following examples serve to illustrate the present invention but are not intended to limit the scope of the present invention.

The present invention provides a valve repair device, and more particularly to provide a device for artificial chordae in a minimally invasive manner mitral or tricuspid valve repair embodiments use. Minimally invasive delivery path can be established and self-protection leaflets from damage during surgery, while repair of the need for precise positioning of the valve leaflets and chordae manual release, reduce patient trauma and improve the success rate.

Object of the present invention is to provide a valve repair device may be in the case of the beating heart, into the ventricle through the apex puncture, the use of ultrasound in the navigation catcher implantation of artificial chordae need leaflet capture position, and and releasing the piercing leaflet artificial tendons, after the withdrawal of the system to adjust the length of the artificial chordae in ultrasound imaging, the other end is fixed to the apex, to complete the implantation of artificial tendons, injury during operation of the device in the patient may be reduced and improve the success rate.

The valve repair device of the present invention may include: a sealing sheath; a sealing sheath for capturing the distal end, fixing the leaflets catcher; of the sealing intrathecal puncture needle for puncturing the catcher is captured leaflet ; may be with the piercing needle into the valve, artificial valve for repairing a tendon; proximal end of the sealing sheath, a handle for the operation of the operation of the valve repair device.

The distal end of the sheath may be sealed around the airbag.

The sheath may be constituted by a sealing sheath, the sheath comprising an inner tube and an outer tube.

The sheath may be connected to one end of the locking valve, and the other end in communication with the airbag, the airbag having such cavities to allow expansion of the fluid to pass between said inner and outer tubes.

The inner and outer tubes may be made of a metallic material or a polymeric material.

The medical balloon may be a butyl rubber, natural rubber or other polymeric material.

The trap can capture a mechanical capture or negative pressure.

The catcher may be a polymeric material or a metal ring made of claws, clip or long pipe.

The catcher may be a long tube shape, and the puncture needle shaft tube parallel to the length.

The artificial tendons can be loaded outside of the lumen of the puncture needle or a puncture needle. The needle can be said that the structure of solid or hollow.

The puncture needle after the needle end to prevent the valve leaflets may have to be punctured off barbs or tennis structure.

The barbs or tennis structure can be recovered as recyclable structural safety after the artificial tendon is released by the catcher.

The artificial tendons may be made of ePTFE, Nitinol, or other polymer materials.

The structure of the artificial chordae may be T-shaped, mushroom single, double knot or mushroom shape.

The handle may have a puncture needle ejection and the ejection flap release means for releasing the piercing artificial chordae.

Ejection release functions of the prior art may be used in any suitable manner to achieve, there are many such similar structures in the prior art, such as for use in the construction is similar to bracket mounting apparatus or the like interventional therapy.

The handle may have means for adjusting the selected puncture leaflet artificial chordae to release simultaneously or step-wise.

Ejection release means of the handle means is a release force and ejection force generated by a spring, hydraulic or pneumatic high spring constants.

Below in conjunction with the accompanying drawings of the present invention in embodiments, the technical solutions in the embodiments of the present invention are clearly and completely described, obviously, the described embodiments are merely part of embodiments of the present invention rather than all embodiments. Based on the embodiments of the present invention, all other embodiments of ordinary skill in the art without any creative effort shall fall within the scope of the present invention.

In this application refers to the distal and proximal distance relative to the operator's far and near.

See Figure 1a-1b, which shows the assembly of FIG valve repair device and the head end cross-sectional view of FIG. The valve repair device includes a sealing sheath 1, the catcher 2, the puncture needle 3, the artificial chordae 4, a handle 5 and the like. Sealing one end of the sheath 6 may be formed in an airbag inflated circular state by injecting a gas or a liquid interface 7 after establishing puncture path, thereby preventing damage to the flap surgery. 2 catcher vacuum port 8 may be connected through vacuum equipment, thereby entering the heart of the head end of a negative pressure, can be accurately capture the blood flow due to the floating of the leaflet under the guidance of ultrasound equipment. Needle end having a puncture needle 3 puncture to prevent the leaflet falling tennis structure 9, the puncture needle 3 in the trap 2 can slide smoothly in the catcher 2, and 3 having the puncture needle 5 is connected to the handle and in the artificial chordae released after 4 lancing needle relative position of the plunger 10 for fixing the puncturing leaflet, release function to achieve a specific structure may be used in the prior art in any suitable manner. 4 artificial chordae may be released by capturing puncture needle 3 2 recovery, to achieve specific structural features may be recovered using any suitable prior art manner. 4 artificial chordae with respect to the puncture needle 3 is fixed, during puncture with the puncture needle 3 may puncture the leaflet. 5 comprises a handle structure ejection, button 11 may be pressed to capture the valve leaflets after catcher 2, the puncture needle puncturing three pairs of leaflets, the handle structure may ejection by a spring, hydraulic or pneumatic high stiffnesses of ejection force generating means and the release force. Such a structure in the prior art are well known and will not be described herein.

The release button 12 may be manually or automatically adjusted by the push rod 10 is released artificial chordae 4. Releasing structure may be employed in any suitable manner has been disclosed in the prior art, it is omitted.

FIGS. 2a-2b shows a further simplified apparatus assembly of FIG valve repair device and the head end cross-sectional view of FIG. The simple apparatus catcher 2 and the sealing sheath 1 joined together, the head end of the sealing sheath may be implemented catcher function, the sealing sheath one end of the balloon 6 can be injected into the gas or liquid through the interface 7 in the establishment of the puncture path is formed enlargement round shaped state in order to prevent damage to the valve leaflets surgery. 2 catcher vacuum port 8 may be connected through vacuum equipment, thereby entering the heart of the head end of a negative pressure, under the guidance of ultrasound equipment, can be accurately captured by the blood flow to the floating leaflet. In the catcher 2 captures the leaflet achieved manually pressing the push-up shaft 13 to puncture the flap, then pushes a release complete artificial chordae pusher 10.

FIG 3 is a schematic diagram of another leaflet mechanical trap captures and puncture. 2 trap contained in the sealing sheath 1, and can smoothly slide along the sealing sheath 1 can be used in two vertically symmetrical U-shaped jaws 14 pairs of leaflets with the aid of ultrasound device 15 capture, the U-shaped pawl 14 with the operating a position parallel to the operating shaft 16 has a lumen 17, which is located in the middle of the U-shaped jaws 14, the lumen of the puncture needle 3 along the U-shaped fixed jaw 17 14 15 puncturing the leaflets.

Figure 4 shows a schematic view of a puncture and releasing T artificial chordae. The capture device 2 is connected to a negative pressure by the negative pressure interface 8, the need for implantation of artificial chordae leaflet capture 15 for vacuum adsorption, and then using the puncture needle 3 puncture of flap 15, puncture tip structure tennis 9 after the puncture can be prevented from falling off the leaflets 15, and then the pusher 10 of the T-type artificial chordae 18 is released from the puncture needle 3, using two pairs of catcher for recycling the puncture needle 3, to complete the implantation of artificial chordae.

Figure 5-6 shows a schematic view of the elastic puncture and T-release and single leaf occluder artificial chordae. Same as in the T-18 artificial chordae embodiments thereof. Except that the T-shaped resilient artificial chordae 19 after released from the puncture needle 3 can be automatically ejected into a T-shaped single leaf occluder artificial tendon 20 to be automatically ejected after the parachute is released from the puncture needle 3 type.

Figure 7 shows a schematic view of a piercing and release Futaba occluder artificial chordae. In an embodiment which is the same before the above-described puncturing T artificial chordae 18, the puncture needle 3 puncture the flap 15 using pusher blade 10 on which the umbrella 21 Release puncture needle, the puncture needle 3 to retreat leaflet 15, then the pusher 10 under the umbrella of the leaf 22 is released, to complete the implantation of artificial chordae.

FIG schematic nodes 8-9 winding artificial chordae for the single and double knot. Intermediate puncture needle 23 has a slot for mounting and releasing the artificial chordae, the push rod 10 in the outer sleeve of the puncture needle 3.

FIG release schematic nodes 10-11 artificial chordae for the single and double knot. The catcher 2 through vacuum port 8 connected to vacuum equipment, the need for implantation of artificial chordae leaflet capture 15 for vacuum adsorption, and then using the puncture needle 3 puncture of flap 15, adhered to the artificial chordae puncture needle 3, after completion of the puncture needle 3 evacuation, holding the position of the pusher 10 constant, artificial tendons pulling cord knot 24 is formed, the complete withdrawal of the device implantation of artificial chordae.

FIG 12 is a schematic diagram of another single-wire junction winding and releasing the artificial chordae. The preparation of artificial chordae good singlet junction 25 into the puncture needle 3, is below the knot pusher 10, the catcher 2 vacuum port 8 is connected through a vacuum equipment, the need for implantation of an artificial leaflet chordae 15 is captured vacuum adsorption, and then using the withdrawal of the puncture needle 33 puncturing the flap 15, after completion of the puncture needle, maintaining the position of the pusher 10 constant, artificial tendons pulling cord knot 24 is formed, the apparatus complete withdrawal of artificial chordae implantation.

13 is a schematic view of a further winding wire junction and releasing the artificial chordae. The above-described embodiments thereof singlet artificial chordae same junction 25. Except that the wire 26 after the end of artificial chordae released as double knot.

14 schematically illustrates the position of apparatus during the operation of the valve leaflet repair space.

FIG 15 is a schematic view of the artificial chordae complete the repair. Artificial chordae 4 is fixed to the end flap 15, the other end of the spacer 27 is fixed by sewing at the position of the apex 28.

At a portion near the apex of a small incision, such as near the xiphoid ribs occasionally, can be entered by means of thoracoscopic navigation device; can also be done abdominal incision into the apex and the separator, can be entered by means of laparoscopic navigation device. Also by direct puncture into the apical xiphoid. Transesophageal echocardiography (the TEE), transthoracic ultrasound (TTE), intracardiac ultrasound method (the ICE), or a direct view of the heart can be used to assess the optical and heart valves, determines the type and location of the lesion, so as to select the proper procedure. If desired, to do a small incision laparoscopic and thoracoscopic introduced to help the surgeon on the heart and chest are analyzed to determine the next surgical approaches and methods. Navigation means of ultrasound, may select any suitable route into the chamber of the heart valves and cardiac repair, it is desirable that by the way into the apical chamber.

Example 1:

Referring to FIG 14,4,15, FIG. 14 is a valve repair device after the apex of the flap into the ventricle schematic capture, FIG. 4 is a schematic view of the artificial chordae release, artificial chordae 15 is a schematic view of the repair is complete.

In the apex doing purse, conventional apical puncture sealing sheath 1 implanted intraventricular, and then sealing the sheath an end of the airbag 6 filling, to prevent damage to the normal valve leaflets during the operation, then sealed under the guidance of ultrasound 1 having a sheath leaflet close to that end of the airbag 6 in need of repair 15, then the need to capture 2 repair leaflet capture 15, and FIG. 4 in accordance with the completion of implantation of an artificial tendons, after withdrawal of the device adjusting artificial chordae length in ultrasound imaging, the cord 24 by sewing the spacer 27 is fixed to the apex 28, to complete the implantation of artificial chordae 15 as shown in FIG.

Example 2:

Referring to FIG 14,5,15, which embodiment is the same as in Example 1.

Example 3:

Referring to FIG 14,6,15, which embodiment is the same as in Example 1.

Example 4:

Referring to FIG 14,7,15, which embodiment is the same as in Example 1. The difference is, the puncture needle 3 puncture the flap 15 using pusher blade 10 on which the umbrella 21 Release puncture needle, the puncture needle 3 to retreat the valve leaflets 15, 10 will then use the pusher 22 under the umbrella leaves release complete implantation of artificial chordae.

Example 5:

Referring to FIGS. 14,10,15, 14 is a valve repair device of the post into the ventricle transapical leaflet capture schematic, FIG. 10 is a schematic view of the artificial chordae release, artificial chordae 15 is a schematic view of the repair is complete.

In the apex doing purse, conventional apical puncture sealing sheath 1 implanted intraventricular, and then sealing the sheath an end of the airbag 6 filling, to prevent damage to the normal valve leaflets during the operation, then sealed under the guidance of ultrasound 1 having a sheath leaflet close to that end of the airbag 6 in need of repair 15, then the need to capture 2 repair leaflet capture 15, then three pairs of leaflets puncture needle 15 punctures the puncture needle after the puncture is completed 3 evacuation, holding the position of the pusher 10 constant, artificial tendons pulling the rope 24 forming the knot, the adjustment in the artificial chordae ultrasound imaging apparatus after the withdrawal length of the cord 24 by sewing the spacer 27 is fixed to the apex 28 at, as shown in FIG 15 to complete the implantation of artificial chordae.

Example 6:

Referring to FIGS. 14,11,15, which embodiment is the same as in Example 5 embodiment.

Example 7:

Referring to FIGS. 14,12,15, which embodiment is the same as in Example 5 embodiment.

Example 8:

Referring to FIGS. 14,13,15, which embodiment is the same as in Example 5 embodiment.

The present invention has the following advantages:

In the beating heart can achieve a small incision into the repair of damaged leaflets. Puncture into the ventricle through the apex, using ultrasound navigation catchers need for implantation of an artificial chordae leaflet capture position, which releases the piercing leaflets and artificial tendons, after the withdrawal of the adjusting device under ultrasound imaging artificial tendons the length of the cable, the other end is fixed to the apex, to complete the implantation of artificial chordae. The operation can be by means of modern imaging equipment such as thoracoscopy, laparoscopy navigation accurate implantation of an artificial health index. This device shorten the operation time, reduce the degree of trauma, surgery reduces the difficulty and surgical risk

The preferred embodiment of the above embodiments of the present invention only but are not intended to limit the present invention, any modifications within the spirit and principle of the present invention, the, equivalent replacement, or improvement, it should be included in the present invention. within the scope of protection.

Industrial Applicability

The present invention provides a valve repair device, the valve repair device comprising: a sealing sheath; a sealing sheath for capturing the distal end, fixing the leaflets catcher; intrathecal for puncturing of the sealing by the catcher captures leaflet puncture needle; a puncture needle with said intake valve, an artificial valve for repairing a tendon; proximal end of the sealing sheath, for operation of the valve repair device of the operating handle. The present invention can realize a small incision into the beating heart, leaflet repair damaged. Puncture into the ventricle through the apex, using ultrasound navigation catchers need for implantation of an artificial chordae leaflet capture position, which releases the piercing leaflets and artificial tendons, after the withdrawal of the adjusting device under ultrasound imaging artificial tendons the length of the cable, the other end is fixed to the apex, to complete the implantation of artificial chordae.

Claims (17)

  1. One kind of valve repair device, wherein: the valve repair device comprising: a sealing sheath; a sealing sheath for capturing the distal end, fixing the leaflets catcher; intrathecal for puncturing of the sealing by the catcher captured leaflet puncture needle; a puncture needle with said intake valve, an artificial valve for repairing a tendon; proximal end of the sealing sheath, a handle for the operation of the operation of the valve repair device.
  2. Valve repair apparatus according to claim 1, wherein: the sealing sheath around the distal end of an airbag.
  3. Valve repair apparatus according to claim 2, wherein: said sheath is made of a sealing sheath, the sheath comprising an inner tube and an outer tube.
  4. Valve repair apparatus according to claim 3, wherein: said valve end of the locking sheath and the other end in communication with the airbag, the airbag having such allowing between said inner and outer tubes expanding fluid through the cavities.
  5. The valve repair device as claimed in claim 4, wherein: the inner tube and the outer tube is made of a metallic material or polymer material.
  6. Valve repair apparatus according to claim 2, wherein: said medical balloon is a butyl rubber, natural rubber or other polymeric material.
  7. Valve repair apparatus according to claim 1, wherein: said mechanical capture or trap negative capture.
  8. Valve repair apparatus according to claim 7, wherein: said trap is a metal or a polymer material ring, claws, or long pipe clip.
  9. Valve repair apparatus according to claim 1, wherein: the catcher is a long tube shape, and the puncture needle shaft tube parallel to the length.
  10. Valve repair apparatus according to claim 1, wherein: said artificial tendons loaded in the lumen of the puncture needle or the outside of the puncture needle.
  11. Valve repair apparatus according to claim 1, characterized in that: said puncture needle having a needle end to prevent the valve leaflets after being punctured or tennis barbs off structure.
  12. Valve repair device as claimed in claim 11, wherein: said barb or tennis structure after said artificial tendon is released securely recovered by the catcher structure recyclable.
  13. Valve repair apparatus according to claim 1, wherein: said artificial tendons made of the ePTFE, Nitinol, or other polymer materials.
  14. Valve repair apparatus according to claim 1, wherein: said artificial tendons T-shaped structure, a single umbrella, double knot or mushroom shape.
  15. Valve repair apparatus according to claim 1, wherein: said handle has an ejector for ejecting a puncture needle puncturing the flap release means and releasing the artificial chordae.
  16. Valve repair apparatus according to claim 1, wherein: said handle has a selector means for adjusting the puncture leaflet artificial chordae to release simultaneously or step-wise.
  17. Valve repair apparatus according to claim 15, wherein: said ejection release means is a handle means for generating ejection force and the force released by the spring, high pressure pneumatic or spring constants.
PCT/CN2016/079906 2015-06-02 2016-04-21 Heart valve repair device WO2016192481A1 (en)

Priority Applications (2)

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CN201510306048.XA CN104873307A (en) 2015-06-02 2015-06-02 Valve repair device

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104873307A (en) * 2015-06-02 2015-09-02 北京迈迪顶峰医疗科技有限公司 Valve repair device
WO2017059426A1 (en) 2015-10-02 2017-04-06 Harpoon Medical, Inc. Distal anchor apparatus and methods for mitral valve repair
CN107822743A (en) * 2017-10-20 2018-03-23 北京迈迪顶峰医疗科技有限公司 Valve leaflet restoration system for minimally invasive surgery

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