CN102698331A - Suture ring for left ventricle - Google Patents
Suture ring for left ventricle Download PDFInfo
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- CN102698331A CN102698331A CN2012102121730A CN201210212173A CN102698331A CN 102698331 A CN102698331 A CN 102698331A CN 2012102121730 A CN2012102121730 A CN 2012102121730A CN 201210212173 A CN201210212173 A CN 201210212173A CN 102698331 A CN102698331 A CN 102698331A
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- ring
- left ventricle
- annular
- suture
- blood pump
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Abstract
The invention relates to a suture ring for a left ventricle. The suture ring is characterized by comprising a medical stainless steel clamp sleeve and an annular terylene mat; the clamp sleeve comprises a clamp ring and a fixing ring body of the annular terylene mat, the clamping ring and the fixing ring body are integrally connected; the clamp ring is an integral clamp ring consisting of a semi-circular fixed ring and a thin-walled semi-circular movable ring; the upper part of the clamp ring is provided with a fastening groove; the upper port of the fixed ring, which corresponds to the fastening groove, is provided with a thread port; the upper port of the movable ring is provided with a screw through hole; the fixed ring is in threaded connection with the movable ring through a medical stainless steel fastening screw; and the annular terylene mat and the fixed ring body are fixedly connected integrally. The suture ring has the advantages that the defect of complex implantation process of the left ventricle in the conventional ventricle assisting device is overcome, and a centrifugal ventricle assisting device is divided into a blood pump main body and the suture ring for the left ventricle, so that a flowing inlet end of a centrifugal blood pump is connected with the left ventricle, and a flowing outlet end of the centrifugal blood pump is connected with aorta; and therefore, the assisting of the left ventricle can be realized, a circulatory function is improved, and a patient suffering from severe symptoms of heart failure can be treated. The implantation processes of the blood pump and the ventricle are simplified, and the safety of operation is improved.
Description
Technical field
The invention belongs to the adnexa of ventricular assist device, relate in particular to a kind of left ventricle suture ring.
Background technology
At present, can't obtain satisfied effect for severe and intractable HF Drug therapy; And heart transplantation receives the donor restriction.So the cardiac mechanical auxiliary device progressively becomes effective Therapeutic Method of serious difficult treated HF.The cardiac mechanical auxiliary device is through effective assist circulation, guarantees that the body vitals effectively pour into, and reduces myocardial oxygen consumption, increases coronary perfusion, reduces myocardium cell necrosis, suppresses remodeling ventricle, promotes cardiac muscle to recover, to reach the purpose of saving patient's life.Current, it is more and more to break away from cardiopulmonary bypass unit and wait heart transplantation and heart disease at final stage people behind severe acute heart failure, the operation on heart, is badly in need of heart assistance short-term transition or keeps long period wait heart donor or long-term assisting.Therefore, ventricular assist device has wide practical use.Ventricular assist device must be implanted on the left ventricle could accomplish the assist circulation function.Most in the world clinical be that blood pump and suture ring are integrative-structure, make to cause the left ventricle apex difficulty of coincideing when surgery is executed art, be easy to hemorrhagely, influenced the promotion and application of ventricular assist device greatly.
Summary of the invention
The present invention is in order to overcome deficiency of the prior art; A kind of left ventricle suture ring and preparation method thereof is provided; Centrifugal ventricular assist device is decomposed into blood pump main body and left ventricle suture ring, the left ventricle suture ring is interrupted or stitching continuously, it is coincide in the left ventricle apex.Insert ventricular assist device through the ventricle suture ring.It is convenient and easy that centrifugal blood pump is implanted in the left ventricle.Realize that effectively ventricle is auxiliary, redemption patient life to guarantee patient safety.
The present invention realizes a kind of left ventricle suture ring for realizing above-mentioned purpose through following technical scheme; It is characterized in that: the cutting ferrule and the annular terylene felt that comprise medical stainless steel; It is whole that said cutting ferrule comprises that the clamping rings body of snap ring and annular terylene felt constitutes, and said snap ring shape is encircled surely with thin wall type semicircle rotating ring by semicircle shape and constituted ring clasp, and said snap ring top is provided with binding groove; Said corresponding binding groove position decide the ring screwed hole that is provided with suitable for reading; The said rotating ring screw via hole that is provided with suitable for reading, said fixed ring is spirally connected through the trip bolt and the rotating ring of medical stainless steel, and said annular terylene felt and said clamping rings body are affixed to be whole.
Radially be provided with the centre joint of 0.2-0.3mm between said snap ring and the clamping rings body.
Width is 3-5mm between the said binding groove.
Said clamping rings body circumference is provided with annular groove, and said annular terylene felt is fixed in the annular groove.
The width of said annular terylene felt is 4-6mm.
Beneficial effect: overcome the complicated left ventricle implantation process of ventricular assist device in the past; Centrifugal ventricular assist device is decomposed into blood pump main body and left ventricle suture ring; Making centrifugal blood pump flow into end connection left ventricle is connected in aorta with outflow end; The realization left ventricle is auxiliary, improves circulatory function, treatment serious symptom patients with heart failure.Simplify blood pump ventricle implantation process, improved the safety of operation.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the A-A view of Fig. 1;
Fig. 3 is the left view of Fig. 1;
Fig. 4 is the sketch map that the present invention is sewn to the left ventricle apex.
Among the figure: 1, cutting ferrule, 2, annular terylene felt, 3, snap ring, 3-1, fixed ring, 3-2, rotating ring, 3-3, binding groove, 4, the clamping rings body, 5, trip bolt, 6, the centre joint, 7, annular groove, 8, left apex.
The specific embodiment
Below in conjunction with preferred embodiment; To details are as follows according to the specific embodiment provided by the invention: see a kind of left ventricle suture ring of accompanying drawing for details; The cutting ferrule 1 and annular terylene felt 2 that comprise medical stainless steel; It is whole that said cutting ferrule comprises that the clamping rings body 4 of snap ring 3 and annular terylene felt constitutes, and said snap ring shape encircles 3-1 surely by semicircle shape and thin wall type semicircle rotating ring 3-2 constitutes ring clasp, and said snap ring top is provided with binding groove 3-3; Said corresponding binding groove position decide the ring screwed hole that is provided with suitable for reading; The said rotating ring screw via hole that is provided with suitable for reading, said fixed ring is spirally connected with rotating ring through the trip bolt 5 of medical stainless steel, and said annular terylene felt and said clamping rings body are affixed to be whole.Radially be provided with the centre joint 6 of 0.2-0.3mm between said snap ring and the clamping rings body, can make the rotating ring degree of tightness freely, through screw cutting ferrule is locked more easily in the art.Width is 3-5mm between the said binding groove.Said clamping rings body circumference is provided with annular groove 7, and said annular terylene felt is fixed in the annular groove.The width of said annular terylene felt is 4-6mm.
Left ventricle suture ring processing technique
Material: Ultra-low carbon acid-resistant stainless steel, medical terylene woven cloth, medical terylene stitching thread
1) gets the raw materials ready: φ 30x100 Ultra-low carbon acid-resistant stainless steel
2) turner: rough turn, finish turning endoporus, cylindrical
Guarantee φ 17+0.018, φ 26-0.05, φ 28-0.05
R11.5，6±0.02，3，2-0.05，0.5+0.05
All polishings, polishing Ra0.4, above chi all stay 0.03 finishing polish
3) miller: tighten blank with anchor clamps, smoothing, correction, centering endoporus finish-milling binding groove, assurance size 4mm, finish-milling rotating ring part is stayed 0.05 polishing boring φ 1.7, φ 2.5, M1.6 bottom outlet, tapping M1.6,
4) line cutting: smooth, proofread and correct, press the smart cutting of the molybdenum filament diameter centre joint 0.2,
5) pincers worker; Correction, polishing, polishing, assurance size,
3, clean: the ventricle suture ring is cleaned, and matting is:
A) with NaOH solution soaking 12～16H of concentration 20～30g/L;
B) with clear water flow wash 4～8min, flow velocity 1L/mim;
C) put into >=soak 10min in 95% the alcoholic solution;
D) in ultrasonic cleaner, clean twice with the purified water suspension, each 5～10mim forbids to collide each other;
E) after the taking-up, put into the surgical cassette of cleaning successively, open the lid, put into baking oven and dry 10min;
F) after the part after the oven dry takes out, build lid, treat the seam ring.
4, seam ring:
A) stitch clean, the ironing that is periphery;
B) select clean seam loop wire for use;
C) according to the type of lobe ring, specification, the lobe of ironing is periphery and shield is cut out along knitting lines by the specification of cardiac valve 24, the burr of determining are extractd the end of a thread with the 5# tweezers, and assurance flushes no burr.With cutting out good cloth, the knitting mesh in two minor faces edge correspondence one by one is stitched into drum type, and woven design is parallel with the axis.
D) stitch the method for encircling with reference to Cardiac valve prosthesis, in the middle of two ends were folded to about lobe was periphery, burr inwards; Stitching low water line tightens up kills 4 of knots, and along lobe frame suture trough Zha8-12Quan, degree of tightness is appropriate with ligature; Guarantee suture ring slippage rotation in groove, and do not get loose, when the ligation last lap, beat 3-5 fast knot; Remove the end of a thread, stay 2-3mm.
E) put the suture ring of ligation in order with hands or tweezers, neat up and down corrugationless, overlapping and out-of-flatness.Press Zha8-12Quan along suture trough.
F) more up and down two end stitching thread tighten up the back and divide secondary to be folded to upper and lower suture ring edge, flush, layer of cloth is even, on the lobe that the cloth crease that turns back is sewn onto ligation respectively with pin is periphery.
G) sew up decorative thread, stitch density 100+5 pin/100mm.
H) all sew it up after, profile is put into baking oven constant temperature 85-212 ℉ with ligature ligation typing, the 10-30min drying and shaping removes binding wire after the taking-up.
I) packing.
Method for using:
In the implantation process, first terylene felt application with left ventricle suture ring periphery 4-6mm is interrupted or continous suture is sewn to left apex 8, more left heart auxiliary device flow ipe is implanted in the left ventricle.Take out the ventricular organization of suture ring central authorities, the inflow end of centrifugal blood pump is inserted left ventricle, be adjusted to suitable position,, accomplish the committed step that ventricle is assisted left heart implantation with the fixing centrifugal blood pump of the small stationary screw of cutting ferrule one side.
Make centrifugal blood pump flow into end connection left ventricle and be connected in aorta, realize that left ventricle is auxiliary, improve circulatory function, treatment serious symptom patients with heart failure with outflow end.
Animal experiment study:
Select into 2 of 3 of dishes prepared for the lunar New Year pigs (80kg) and adult sheep (50kg) for use.All open breast, cut off pericardium, aortic cannulation, insert diode through right atrium in general anesthesia, center; Under extracorporeal circulation, accomplish and be interrupted or sew up left ventricle stitching ring polyester felt continuously; After the knotting, take out the middle cardiac muscular tissue of suture ring, implant the centrifugal blood pump flow ipe; Blood pump is adjusted to suitable position, uses bolt centrifugal blood pump on the suture ring.Choose the suitable length artificial blood vessel, it is coincide at ascending aorta.Behind the gas, start centrifugal blood pump low discharge assist circulation in eliminating blood pump and the pipeline.Afterwards, extract the right atrium diode, extract aortic cannulation; Use centrifugal blood pump full flow assist circulation, realize arriving aortal assist circulation, keep effective flow and arterial pressure through left ventricle, blood pump; Guarantee the important organ blood supply; Reduce the heart acting, increase coronary flow, improve cardiac function.
The above only is preferred embodiment of the present invention, is not structure of the present invention is done any pro forma restriction.Every foundation technical spirit of the present invention all still belongs in the scope of technical scheme of the present invention any simple modification, equivalent variations and modification that above embodiment did.
Claims (5)
1. left ventricle suture ring; It is characterized in that: the cutting ferrule and the annular terylene felt that comprise medical stainless steel; It is whole that said cutting ferrule comprises that the clamping rings body of snap ring and annular terylene felt constitutes, and said snap ring shape is encircled surely with thin wall type semicircle rotating ring by semicircle shape and constituted ring clasp, and said snap ring top is provided with binding groove; Said corresponding binding groove position decide the ring screwed hole that is provided with suitable for reading; The said rotating ring screw via hole that is provided with suitable for reading, said fixed ring is spirally connected through the trip bolt and the rotating ring of medical stainless steel, and said annular terylene felt and said clamping rings body are affixed to be whole.
2. left ventricle suture ring according to claim 1 is characterized in that: the centre joint that radially is provided with 0.2-0.3mm between said snap ring and the clamping rings body.
3. left ventricle suture ring according to claim 1 is characterized in that: width is 3-5mm between the said binding groove.
4. left ventricle suture ring according to claim 1 is characterized in that: said clamping rings body circumference is provided with annular groove, and said annular terylene felt is fixed in the annular groove.
5. left ventricle suture ring according to claim 1 and 2 is characterized in that: the width of said annular terylene felt is 4-6mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102121730A CN102698331A (en) | 2012-06-26 | 2012-06-26 | Suture ring for left ventricle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102121730A CN102698331A (en) | 2012-06-26 | 2012-06-26 | Suture ring for left ventricle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102698331A true CN102698331A (en) | 2012-10-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102121730A Pending CN102698331A (en) | 2012-06-26 | 2012-06-26 | Suture ring for left ventricle |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2206182A (en) * | 1987-05-14 | 1988-12-29 | Dr Dhani Ram Baruah | Mechanical heart valve |
| US20040171905A1 (en) * | 2002-06-26 | 2004-09-02 | HeartWare, Inc, (a Delaware Corporation) | Ventricular connector |
| CN101442945A (en) * | 2005-12-08 | 2009-05-27 | 哈特威尔公司 | Implant connector |
| CN102294057A (en) * | 2011-08-31 | 2011-12-28 | 苏州同心医疗器械有限公司 | Left ventricle auxiliary blood pump |
| CN202620331U (en) * | 2012-06-26 | 2012-12-26 | 泰达国际心血管病医院 | Left ventricle suture ring |
-
2012
- 2012-06-26 CN CN2012102121730A patent/CN102698331A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2206182A (en) * | 1987-05-14 | 1988-12-29 | Dr Dhani Ram Baruah | Mechanical heart valve |
| US20040171905A1 (en) * | 2002-06-26 | 2004-09-02 | HeartWare, Inc, (a Delaware Corporation) | Ventricular connector |
| CN101442945A (en) * | 2005-12-08 | 2009-05-27 | 哈特威尔公司 | Implant connector |
| CN102294057A (en) * | 2011-08-31 | 2011-12-28 | 苏州同心医疗器械有限公司 | Left ventricle auxiliary blood pump |
| CN202620331U (en) * | 2012-06-26 | 2012-12-26 | 泰达国际心血管病医院 | Left ventricle suture ring |
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Application publication date: 20121003 |