CN102357267A - Outlet connecting mechanism of left ventricle assisting blood pump - Google Patents
Outlet connecting mechanism of left ventricle assisting blood pump Download PDFInfo
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- CN102357267A CN102357267A CN2011102553640A CN201110255364A CN102357267A CN 102357267 A CN102357267 A CN 102357267A CN 2011102553640 A CN2011102553640 A CN 2011102553640A CN 201110255364 A CN201110255364 A CN 201110255364A CN 102357267 A CN102357267 A CN 102357267A
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- left ventricle
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Abstract
The invention discloses an outlet connecting mechanism of a left ventricle assisting blood pump. The outlet connecting mechanism comprises a blood pump, wherein the outlet tube of the blood pump is connected with an artificial blood vessel; the inner diameter of the artificial blood vessel is greater than the outer diameter of the outlet tube; the artificial blood vessel is sleeved on the outlet tube; the inner diameter of a clamp is greater than the outer diameter of the outlet tube; the artificial blood vessel is fixed on the outlet tube of the blood pump through the clamp; a reinforcing casing is sleeved outside the artificial blood vessel, and comprises a circular-tube-shaped casing body; the casing body has a staggered uniformly-distributed pore structure; the first end of the casing body is connected with a first flexible silica gel jacket; and the second end of the casing body is connected to the clamp to fix the position of the reinforcing casing. The invention has the beneficial effects that: an outlet is more compact, and the implantation of the pump into a chest cavity is facilitated. The outlet connecting mechanism has high bending performance, and normal extension and contraction of the artificial blood vessel are not influenced while the compressive property of the artificial blood vessel is improved.
Description
Technical field
The present invention relates to a kind of outlet bindiny mechanism of left ventricle auxiliary blood pump, belong to technical field of medical instruments.
Background technology
The left ventricle auxiliary blood pump arrives arteries through the blood transport with left ventricle, helps heart left ventricle to realize blood-pumping function.The outlet of left ventricle auxiliary blood pump connects into path through the artificial blood vessel with tremulous pulse.Because the blood vessel of plugging into is positioned at the thoracic cavity, the artificial blood vessel who selects for use possesses stronger anti-pressure ability, in the thoracic cavity, receives to be difficult for subsiding under the extruding of internal organs.To the application circumstances of left ventricle auxiliary blood pump, there are two technical problems:
1) since in the thoracic cavity space narrow and small, so implant the thoracic cavity size and shape of left ventricle donkey pump had very high requirement.If the left ventricle auxiliary blood pump is oversize or global shape is compact inadequately, can be after the implantation to peripheral organs, especially heart and barrier film cause extruding, increase post-operative complication, thereby reduce success rate of operation.
And the left ventricle auxiliary blood pump in most implantable thoracic cavities; The length of its outlet bindiny mechanism is all bigger, and more than the general 20mm, outlet bindiny mechanism is a hard member; Can not be can be arbitrarily crooked as the artificial blood vessel, so this size directly causes taking a lot of spaces than conference.
2) implantation position of left ventricle auxiliary blood pump; And the position of the tremulous pulse of plugging into it; Caused the artificial blood vessel that certain bending must be arranged; Especially near a section of pump discharge pipe bigger bending is being arranged, and, causing the artificial blood vessel very easily to be subsided in interface section again because the outlet of left ventricle auxiliary blood pump is a hard member.
Subsiding of artificial blood vessel causes the unsmooth of blood runner, forms thrombosis (small solidify clot) in this position, and thrombosis is along with blood flows to each internal organs such as brain, liver etc.When the blood capillary of the internal organs of flowing through, thrombosis can block blood capillary, finally can cause the tissue necrosis at this place.Flow into brain such as thrombosis, cause apoplexy; Thrombosis flows into liver, can occur the white macula of tissue necrosis on the liver.
Summary of the invention
The objective of the invention is to solve above-mentioned technical problem, propose a kind of outlet bindiny mechanism of left ventricle auxiliary blood pump.
The object of the invention will be achieved through following technical scheme:
A kind of outlet bindiny mechanism of left ventricle auxiliary blood pump comprises blood pump, and the outlet of said blood pump is connected with artificial blood vessel; Said artificial blood vessel's internal diameter is greater than said outlet external diameter; On said artificial blood vessel's socket and the said outlet, the internal diameter of said clip is greater than the external diameter of said outlet, and said artificial blood vessel is fixed on the outlet of blood pump through clip; Artificial blood vessel is arranged with reinforcing sleeve outward; Said reinforcing sleeve comprises pipe shape sleeve body, and said sleeve body is the staggered pore structure that is uniformly distributed with that medical embedded level material makes, and first end of said sleeve body is connected with the soft sheath of a medical embedded rank silica type; Second end of said sleeve body is connected on the clip, with the fixing position of reinforcing sleeve.
Preferably, said clip is evenly equipped with at least two convexities, and second end of said sleeve body offers at least two buckles, is connected with convexity.
Preferably, said clip is evenly equipped with three convexities, and second end of said sleeve body offers three buckles, is connected with convexity.
Preferably, be evenly equipped with at least two apertures on first end of said sleeve body, be evenly equipped with the salient point that cooperates with the aperture on the said sheath.
Preferably, second end of said sleeve body is made up of at least two cards and a draw-in groove, offers buckle on the said card, and the width of said draw-in groove is greater than the width of the connecting portion of said clip.
Preferably; Second end of said sleeve body is made up of five cards that are uniformly distributed with and a draw-in groove; Offer the buckle that cooperates with the clip raising on the card at interval, be provided with the gap between the said card, the width of said draw-in groove is greater than the width of the connecting portion of said clip; When buckle was connected on the convexity of clip, the connecting portion of clip placed in the draw-in groove.
Preferably, the length of the outlet of said blood pump is less than 10mm, and the width of said clip is 3mm-7mm, and the pump discharge pipe mouth of pipe is done rounding.
Preferably, the nozzle position of the outlet of said blood pump is provided with the annular protrusion that is used to strengthen the fixing hoop position, and the diameter of said annular protrusion is greater than the clip internal diameter.
Beneficial effect of the present invention embodies following several respects:
1, the artificial blood vessel through clip be connected with the blood pump outlet, reinforcing sleeve is socketed in the type of attachment that snaps on the clip, and reinforcing sleeve is promptly flexible in blood pump outlet end, makes whole delivery side of pump compact more, helps pump in intrathoracic implantation.
2, reinforcing sleeve is the pore structure that is interspersed, and makes it have good bending property, when improving the compressive property of artificial blood vessel, can not have influence on the normal extension and the contraction of artificial blood vessel.
3, the multi-disc of reinforcing sleeve and pump discharge pipe (clip) snaps in type of attachment and can deal with over-drastic bending, therefore connects reliably, and convenient installation and operation is simple simultaneously.
4, the sheath of reinforcing sleeve end adopts medical embedded other silastic material of level, has good flexibility, has avoided bending when excessive the edge of reinforcing sleeve and has been pressed into the artificial blood vessel is caved in.
Description of drawings
Fig. 1 is a blood pump outlet blast structure chart of the present invention.
Fig. 2 is the structural representation of clip of the present invention.
Fig. 3 is a structural representation of the present invention.
Fig. 4 is a jacket structure sketch map of the present invention.
Fig. 5 is the first end structure sketch map of sleeve body of the present invention.
Fig. 6 is the present invention's overall structure sketch map in use.
Fig. 7 is the cross-sectional view of blood pump outlet of the present invention.
The specific embodiment
The invention provides a kind of artificial blood vessel reinforcing sleeve, as shown in Figure 1, said artificial blood vessel 5 is fixed on the outlet 61 of blood pump 6 through clip 4, and said reinforcing sleeve is sheathed on the artificial blood vessel 5, and through jointing clip 4 fixing its positions.
As shown in Figure 3, said reinforcing sleeve comprises the pipe shape sleeve body 1 that is set in outside the artificial blood vessel 5, the staggered pore structure that is uniformly distributed with that said sleeve body 1 makes for medical embedded level material, for example ultra-high molecular weight polyethylene (UHMW-PE).Because sleeve body 1 outside artificial blood vessel 5, plays certain support protective effect, so need make with the material with certain degree of hardness; And, need certain flexibility owing to it need be out of shape along with the bending of artificial blood vessel, and so on sleeve body 1, be set to the staggered gap structure that is uniformly distributed with, realized the bending of any direction and wide-angle, said space can be set to elongated strip shaped.
Because reinforcing sleeve needs bending, and the material of its sleeve body 1 relatively has hardness, if in the bending process, runs into artificial blood vessel 5, in the long process, first section of sleeve body 1 is caused damage to artificial blood vessel 5 easily, influences the function of artificial blood vessel 5.For avoiding this situation, shown in Fig. 3-7, first end 10 of said sleeve body 1 is connected with the soft sheath 2 of a medical embedded rank silica type.Concrete, the aperture 12 that is uniformly distributed with on first end 10 through said sleeve body 1 and is evenly equipped with the salient point 20 that cooperates with aperture 12 and carries out being connected of sheath 2 and sleeve body 1 on the sheath 2.
Said clip 4 is uniformly distributed with three convexities 40, and second end 11 of said sleeve body 1 offers three buckles 30 that cooperate with protruding 40.Second end 11 of said sleeve body 1 is connected on the clip 4 through buckle 30, and the position of reinforcing sleeve just can be fixed.The link of card 31 conducts and clip 4, size is short, get final product less than 10mm, and also easy to connect, firm, even when bending big (90 spend), link can not come off yet.
Further, second end of said sleeve body 1 is made up of five cards 31 that are uniformly distributed with and a draw-in groove 32, and buckle 30 being opened on the card 31 at interval makes that like this stress distribution on the card 31 is even, can shorten axial dimension, can strengthen the amplitude of its bending.Simultaneously,, be provided with gap 301 between each card 31, like this, the radial dimension of second end 11 of sleeve body 1 extended to some extent, help socket for better assembling.The width of the connecting portion 41 of the width of said draw-in groove 32 and clip 40 is suitable, is connected in 40 last times of convexity of clip 4 at buckle 30, and the connecting portion 41 of clip 4 just in time places in the draw-in groove 32.
The length of the outlet 61 of said blood pump 6 is less than 10mm, and the width of said clip 4 is 3mm-7mm, and it is enough short make to connect length like this, can significantly reduce the exit occupation space, to implant the thoracic cavity, to avoid pushing diaphram helpful.
For reducing the probability that thrombosis forms at mouth of pipe place, pump discharge pipe 61 nozzle position roundings.The nozzle position of the outlet 61 of said blood pump 6 is provided with the annular protrusion 611 that is used to strengthen fixing hoop 4 positions, and the diameter of said annular protrusion 611 is greater than clip 4 internal diameters.Clip 4 is when banding not, and the slit of exposing between the outlet 61 is in 1mm, and the slit is littler behind the banding, to avoid leaking blood from here behind the banding.
Structure when the present invention uses, as shown in Figure 6, little for bending radius; Under the big situation of bent angle, reinforcing sleeve still can keep cross sectional shape indeformable, and protection outlet position artificial blood vessel 5 avoids extruding; Make it to be difficult for subsiding, artificial blood vessel 5 still can extend and shrink within it.
The present invention still has numerous embodiments, and all employing equivalents or equivalent transformation and all technical schemes of forming all drop within protection scope of the present invention.
Claims (8)
1. the outlet bindiny mechanism of left ventricle auxiliary blood pump; Comprise blood pump (6); The outlet (61) of said blood pump (6) is connected with artificial blood vessel (5), it is characterized in that: said artificial blood vessel's (5) internal diameter is greater than said outlet (61) external diameter, on said artificial blood vessel (5) socket and the said outlet (61); The internal diameter of said clip (4) is greater than the external diameter of said outlet; Said artificial blood vessel (5) is fixed in through clip (4) on the outlet (61) of blood pump (6), and artificial blood vessel (5) is outer to be arranged with reinforcing sleeve, and said reinforcing sleeve comprises pipe shape sleeve body (1); The staggered pore structure that is uniformly distributed with that said sleeve body (1) makes for medical embedded level material; First end (10) of said sleeve body (1) is connected with a soft sheath of medical embedded rank silica type (2), and second end (11) of said sleeve body (1) is connected on the clip (4), with the fixing position of reinforcing sleeve.
2. the outlet bindiny mechanism of left ventricle auxiliary blood pump according to claim 1; It is characterized in that: said clip (4) is evenly equipped with at least two convexities (40); Second end (11) of said sleeve body (1) offers at least two buckles (30), is connected with protruding (40).
3. the outlet bindiny mechanism of left ventricle auxiliary blood pump according to claim 2 is characterized in that: said clip (4) is evenly equipped with three convexities (40), and second end (11) of said sleeve body (1) offers three buckles (30), is connected with protruding (40).
4. the outlet bindiny mechanism of left ventricle auxiliary blood pump according to claim 3 is characterized in that: be evenly equipped with at least two apertures (12) on first end (10) of said sleeve body (1), be evenly equipped with the salient point (20) that cooperates with aperture (12) on the said sheath (2).
5. the outlet bindiny mechanism of left ventricle auxiliary blood pump according to claim 2; It is characterized in that: second end (11) of said sleeve body (1) is made up of at least two cards (31) and a draw-in groove (32); Offer buckle (30) on the said card (31), the width of said draw-in groove (32) is greater than the width of the connecting portion (41) of said clip (40).
6. the outlet bindiny mechanism of left ventricle auxiliary blood pump according to claim 4; It is characterized in that: second end of said sleeve body (1) is made up of five cards (31) that are uniformly distributed with and a draw-in groove (32); Offer the buckle (30) that cooperates with clip (4) raising (40) on the card (31) at interval; Be provided with gap (301) between the said card (31); The width of said draw-in groove (32) is greater than the width of the connecting portion (41) of said clip (40), is connected in last time of convexity (40) of clip (4) at buckle (30), and the connecting portion (41) of clip (4) places in the draw-in groove (32).
7. the outlet bindiny mechanism of left ventricle auxiliary blood pump according to claim 1 is characterized in that: the length of the outlet (61) of said blood pump (6) is less than 10mm, and the width of said clip (4) is 3mm-7mm, and pump discharge pipe (61) mouth of pipe is done rounding.
8. the outlet bindiny mechanism of left ventricle auxiliary blood pump according to claim 6; It is characterized in that: the nozzle position of the outlet (61) of said blood pump (6) is provided with the annular protrusion (611) that is used to strengthen fixing hoop (4) position, and the diameter of said annular protrusion (611) is greater than clip (4) internal diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110255364.0A CN102357267B (en) | 2011-08-31 | 2011-08-31 | Outlet connecting mechanism of left ventricle assisting blood pump |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110255364.0A CN102357267B (en) | 2011-08-31 | 2011-08-31 | Outlet connecting mechanism of left ventricle assisting blood pump |
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| CN102357267A true CN102357267A (en) | 2012-02-22 |
| CN102357267B CN102357267B (en) | 2015-07-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110255364.0A Active CN102357267B (en) | 2011-08-31 | 2011-08-31 | Outlet connecting mechanism of left ventricle assisting blood pump |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104338187A (en) * | 2013-08-06 | 2015-02-11 | 北京精密机电控制设备研究所 | Artificial blood vessel protecting sleeve and artificial blood vessel protection device comprising same |
| CN107626008A (en) * | 2017-10-31 | 2018-01-26 | 深圳核心医疗器械有限公司 | The outlet connecting mechanism and its assemble method of a kind of artificial blood pump |
| CN117298440A (en) * | 2023-11-28 | 2023-12-29 | 苏州同心医疗科技股份有限公司 | Blood pump outlet connecting structure |
| CN117357783A (en) * | 2023-12-07 | 2024-01-09 | 苏州同心医疗科技股份有限公司 | Blood pump outlet connection structure |
| CN117442865A (en) * | 2023-12-20 | 2024-01-26 | 苏州同心医疗科技股份有限公司 | Blood pump outlet pipe connection structure |
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| US4086665A (en) * | 1976-12-16 | 1978-05-02 | Thermo Electron Corporation | Artificial blood conduit |
| US20010004675A1 (en) * | 1994-02-07 | 2001-06-21 | John C. Woodard | Ventricular assist device with valved blood conduit and method of making |
| US20040054251A1 (en) * | 2002-09-18 | 2004-03-18 | Liotta Domingo Santo | Corporal implantation device for assisting blood and heart ventricular circulation |
| US20060074271A1 (en) * | 2004-07-22 | 2006-04-06 | Cotter Christopher J | Heart pump connector |
| CN2889350Y (en) * | 2006-05-23 | 2007-04-18 | 张艳民 | Medical corrugated silicone tube |
| CN202223620U (en) * | 2011-08-31 | 2012-05-23 | 苏州同心医疗器械有限公司 | Outlet connecting mechanism for left ventricular auxiliary blood pump |
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2011
- 2011-08-31 CN CN201110255364.0A patent/CN102357267B/en active Active
Patent Citations (6)
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| US4086665A (en) * | 1976-12-16 | 1978-05-02 | Thermo Electron Corporation | Artificial blood conduit |
| US20010004675A1 (en) * | 1994-02-07 | 2001-06-21 | John C. Woodard | Ventricular assist device with valved blood conduit and method of making |
| US20040054251A1 (en) * | 2002-09-18 | 2004-03-18 | Liotta Domingo Santo | Corporal implantation device for assisting blood and heart ventricular circulation |
| US20060074271A1 (en) * | 2004-07-22 | 2006-04-06 | Cotter Christopher J | Heart pump connector |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104338187A (en) * | 2013-08-06 | 2015-02-11 | 北京精密机电控制设备研究所 | Artificial blood vessel protecting sleeve and artificial blood vessel protection device comprising same |
| CN107626008A (en) * | 2017-10-31 | 2018-01-26 | 深圳核心医疗器械有限公司 | The outlet connecting mechanism and its assemble method of a kind of artificial blood pump |
| CN117298440A (en) * | 2023-11-28 | 2023-12-29 | 苏州同心医疗科技股份有限公司 | Blood pump outlet connecting structure |
| CN117357783A (en) * | 2023-12-07 | 2024-01-09 | 苏州同心医疗科技股份有限公司 | Blood pump outlet connection structure |
| CN117357783B (en) * | 2023-12-07 | 2024-02-23 | 苏州同心医疗科技股份有限公司 | Blood pump outlet connection structure |
| CN117442865A (en) * | 2023-12-20 | 2024-01-26 | 苏州同心医疗科技股份有限公司 | Blood pump outlet pipe connection structure |
| CN117442865B (en) * | 2023-12-20 | 2024-04-02 | 苏州同心医疗科技股份有限公司 | Blood pump outlet pipe connection structure |
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| Publication number | Publication date |
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| CN102357267B (en) | 2015-07-15 |
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Application publication date: 20120222 Assignee: Ningbo Tongda medical instrument limited company Assignor: SUZHOU TONGXIN MEDICAL DEVICES CO.,LTD. Contract record no.: 2015320010142 Denomination of invention: Outlet connecting mechanism of left ventricle assisting blood pump Granted publication date: 20150715 License type: Exclusive License Record date: 20150911 |
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| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
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Assignee: Ningbo Tongda medical instrument limited company Assignor: SUZHOU TONGXIN MEDICAL DEVICES CO.,LTD. Contract record no.: 2015320010142 Date of cancellation: 20161021 |
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| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
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Address after: Room 301, Building 07, Northwest District, Suzhou Nano City, No. 99, Jinji Lake Avenue, Suzhou Industrial Park, Jiangsu Province 215123 Patentee after: Suzhou Tongxin Medical Technology Co., Ltd. Address before: Room 302, Building A4, Bio-Nano Park, No. 218, Xinghu Street, Industrial Park, Suzhou City, Jiangsu Province, 215125 Patentee before: SUZHOU TONGXIN MEDICAL DEVICES CO.,LTD. |