CN102294057A - Left ventricle auxiliary blood pump - Google Patents
Left ventricle auxiliary blood pump Download PDFInfo
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- CN102294057A CN102294057A CN2011102553617A CN201110255361A CN102294057A CN 102294057 A CN102294057 A CN 102294057A CN 2011102553617 A CN2011102553617 A CN 2011102553617A CN 201110255361 A CN201110255361 A CN 201110255361A CN 102294057 A CN102294057 A CN 102294057A
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Abstract
The invention discloses a left ventricle auxiliary blood pump, which comprises a cardiac apex sleevelet and a blood pump body fixedly connected with the cardiac apex sleevelet, wherein the cardiac apex sleevelet comprises a suture ring and a flexible skirt edge which is sleeved at the periphery of the suture ring; the suture ring comprises a suture ring inner hole and a convex edge which is convexly arranged in the radial direction; the blood pump body comprises an inlet pipe; the inlet pipe is convexly arranged on a rear cover of the blood pump body; a peripheral ring slot is formed between the convex edge and the flexible skirt edge; a sliding sheet which can only move in the radial direction relative to the blood pump body is arranged on the rear cover of the blood pump body and is stretched into the peripheral ring slot in a movable way; the convex edge is positioned between the sliding sheet and the bottom surface of a settling tank; and the cardiac apex sleevelet and the blood pump body are relatively axially fixed. In the invention, the sliding sheet is used for fixing the cardiac apex sleevelet and the blood pump, so that the cardiac apex sleevelet can be more conveniently and reliably connected with the blood pump; simultaneously, the axial dimension of the inlet pipe of the blood pump is reduced, so that the implantation of the left ventricle auxiliary blood pump in a pleural cavity is facilitated without damages to a diaphragm, and the success rate of a surgery is greatly improved.
Description
Technical field
The present invention relates to a kind of left ventricle auxiliary blood pump, relate in particular to the syndeton of a kind of left ventricle donkey pump and heart, belong to technical field of medical instruments.
Background technology
Left ventricle auxiliary blood pump, its arrival end are connected heart apex of the heart position, and outlet is docked with on the arteries.Heart and the arteries position of plugging into all is positioned at the thoracic cavity.One deck diaphram is arranged between thoracic cavity and the abdominal cavity.Diaphram is called respiratory muscle again, and diaphram descends, and the thoracic cavity volume enlarges, and is air-breathing to help; The diaphram rising sets back when lax, and the thoracic cavity volume reducing is to help expiration.Another effect of diaphram is that thoracic cavity and abdominal cavity are separated, and diaphram self is fluid-tight.
Adopt the left ventricle auxiliary blood pump of magnetic levitation technology, it is to the destruction minimum of blood, owing to do not have mechanical wear so good endurance in theory.But the magnetic suspension structure complexity causes pump housing size bigger than normal, therefore can only implant the abdominal cavity.Existing product has the Levacor of WorldHeart company, and the DuraHeart of TERUMO company etc. all are to be implanted to the abdominal cavity.
And when blood pump was implanted to the abdominal cavity, operation will be opened thoracic cavity and abdominal cavity, will will bore a hole on diaphram inevitably, and will guarantee that perforation place do not seep water, and had significantly increased operating difficulty.Postoperative since diaphram along with breathing up and down reciprocatingly, perforation place is easily gone wrong, even tears diaphram.Increased post-operative complication greatly.To sum up, blood pump is implanted the abdominal cavity, doctor and postoperative care have been proposed very high requirement, and be unfavorable for receptor's rehabilitation.
The overall dimensions of blood pump, except the pump body dimension, size also includes an inlet and an outlet.The inlet of blood pump is between the heart and the pump housing, and can its size just is directly connected to blood pump implanted thoracic cavity.
The implantation position of blood pump is below heart, and above the diaphram, heart and diaphram are oppressed in oversize meeting simultaneously, not only influence cardiac rehabilitation, can have influence on normal respiratory function simultaneously, even cause the appearance of other complication.
Summary of the invention
The objective of the invention is to solve above-mentioned technical problem, a kind of left ventricle auxiliary blood pump of implantable thoracic cavity is provided.
Purpose of the present invention will be achieved by the following technical programs:
A kind of left ventricle auxiliary blood pump comprises apex of the heart oversleeve that is fixedly connected on heart and the blood pump body of fixedlying connected with it;
Described apex of the heart oversleeve comprises suture ring and is set in the flexible skirt of suture ring periphery, and described suture ring comprises a suture ring endoporus of offering along its axis;
Described blood pump body comprises that the suture ring endoporus that is used to pass described apex of the heart oversleeve enters the inlet tube of heart, and described inlet tube is convexly set on the bonnet of described blood pump body,
Described suture ring comprises a chimb that radially is convexly equipped with, and forms a circumferential groove in its end portion between described chimb and the described flexible skirt;
The bonnet of described blood pump body only is provided with the slide plate that can described relatively blood pump body moves radially, and the thickness of described slide plate is smaller or equal to the width of described circumferential groove in its end portion, so that described slide plate can extend in the described circumferential groove in its end portion; Be concaved with a deep gouge on the bonnet of described blood pump body, the maximum outside diameter of described deep gouge is more than or equal to the maximum outside diameter of described chimb, and the degree of depth of described deep gouge is more than or equal to the thickness of described chimb;
After described slide plate extend in the described circumferential groove in its end portion movably, described chimb was between the bottom surface of described slide plate and described deep gouge, and described apex of the heart oversleeve and described blood pump body are fixing to axial.
Preferably, described flexible skirt is made up of a hair anvil internal layer and the hair anvil coat that coats described hair anvil.
Preferably, be concaved with an axial annular groove on the proximal end face of described suture ring, offer one group of suture hole in the described axial annular groove, described suture hole is a through hole, is used for medical suture and passes and stitch and tie in described flexible skirt.
Preferably, at least one guide groove of outer process, described slide plate radially slides in described guide groove on the described bonnet.
Preferably, outwards be provided with 2 inverted L shape slide units on the described bonnet, the gap between described slide unit and the bonnet is a guide groove.
Preferably, outwards be arranged with four inverted L shape slide units on the described bonnet, wherein the gap of two slide units is oppositely arranged and forms a guide groove, and the gap of two other slide unit is oppositely arranged and forms another guide groove.
Preferably, be concaved with the slide plate deep gouge on the described bonnet, corresponding described slide plate is provided with an agnail that can be placed in the described slide plate deep gouge, and the height of described agnail is greater than the degree of depth of described slide plate deep gouge.
Preferably, the inner ring of described slide plate deep gouge is the guide part of a wedge shape, and the shape of described guide part and the shape of described agnail match.
Preferably, the degree of depth of described slide plate deep gouge is less than the degree of depth of described deep gouge.
Preferably, the rear end of described slide plate is provided with one and conveniently pinches the step of holding, and described agnail is arranged on the front center of described slide plate.
Preferably, described agnail both sides are all extended to the slide plate rear end and are offered straight line distortion groove.
Preferably, radially offer a through wires hole on the step of described slide plate, offer on the surface of described slide plate one with distortion groove parallel Wire channel in building, described through wires hole and described Wire channel in building also connect on same straight line, offer a line hole on the end face of described slide unit, described line hole and described Wire channel in building UNICOM.
Of the present inventionly also can be implemented by another technical scheme:
Above-described a kind of left ventricle donkey pump, the bonnet of described blood pump body is provided with two locking plates that only can move radially, described locking plate comprises a segmental arc at least, the two ends of described segmental arc extend into respectively in 2 guide grooves, and described two locking plates radially are moved into the diameter of the formed interior diameter of a circle of its segmental arc of contact back less than described deep gouge.
Preferably, the two ends of the segmental arc of described locking plate are respectively a straightway, and described straightway stretches into movably in described guide groove.
Preferably, the axis of the straightway of the same side of described two locking plates is all on same straight line.
Preferably, be concaved with the locking plate deep gouge on the described bonnet, corresponding described locking plate is provided with an agnail that can be placed in the described locking plate deep gouge, and the height of described agnail is greater than the degree of depth of described locking plate deep gouge.
Preferably, the inner ring of described locking plate deep gouge is the guide part of a wedge shape, and the shape of described guide part and the shape of described agnail match.
Preferably, the rear end of the straightway of described locking plate is provided with one and conveniently pinches the step of holding.
Beneficial effect of the present invention is embodied in: adopt slide plate to fix the position of apex of the heart oversleeve and blood pump, make that being connected of apex of the heart oversleeve and blood pump more can be convenient and reliable.Simultaneously, shorten the axial dimension of blood pump inlet tube, under the situation of not destroying diaphram, helped the implantation of left ventricle donkey pump in the thoracic cavity, improved the success rate of operation greatly.
Description of drawings
Fig. 1 be the present invention in use with heart syndeton sketch map.
Fig. 2 is the perspective view of apex of the heart oversleeve of the present invention.
Fig. 3 is the left and right sides view of Fig. 2.
Fig. 4 is the cross section structure sketch map of apex of the heart oversleeve of the present invention.
Fig. 5 is the rear cover structure sketch map of first embodiment of the invention blood pump body, at this moment, does not comprise slide plate.
Fig. 6 is a first embodiment of the invention slide plate upward view.
Fig. 7 is a first embodiment of the invention slide plate vertical view.
Fig. 8 is the rear cover structure sketch map of first embodiment of the invention blood pump body, comprises slide plate this moment.
Fig. 9 is that first embodiment of the invention apex of the heart oversleeve is sheathed on the blood pump body inlet tube, and slide plate inserts the structural representation of circumferential groove in its end portion.
Figure 10 is first embodiment of the invention slide plate blood pump body inlet tube place cutaway view when also not inserting.
Figure 11 is the structural representation of second embodiment of the invention slide plate in bonnet.
Figure 12 is the rear cover structure sketch map of second embodiment of the invention, and this moment, slide plate was not in bonnet.
Figure 13 is a second embodiment of the invention slide vane structure sketch map.
Figure 14 is second embodiment of the invention slide plate rear cover structure sketch map when not pushing.
Figure 15 is second embodiment of the invention slide plate rear cover structure sketch map when pushing.
The specific embodiment
The invention provides a kind of left ventricle auxiliary blood pump, as shown in Figure 1, consistent with prior art, comprise apex of the heart oversleeve 1 that is fixedly connected on heart 70 and the blood pump body 2 of fixedlying connected, be convexly equipped with on the blood pump body 2 and one enter heart 70, make the ventricle inner blood enter the inlet tube 23 of blood pump body 2 with apex of the heart oversleeve 1.Described blood pump body 2 sagittal planes are provided with one and are connected with artificial blood vessel 80, are used for the outfan of blood pump body 2 inner bloods output.
To shown in Figure 4, described apex of the heart oversleeve 1 comprises suture ring 11 and is set in the flexible skirt 12 of suture ring 11 peripheries as Fig. 2.Described suture ring 11 comprises a chimb that radially is convexly equipped with 18, forms a circumferential groove in its end portion 13 between described chimb 18 and the described flexible skirt 12; Be concaved with an axial annular groove 14 on the proximal end face 17 of described suture ring 11, offer one group of suture hole 15 in the described axial annular groove 14, described suture hole 15 is a through hole, is used for suture and passes and stitch and tie in described flexible skirt 12.Axially the setting of annular groove 14 is in order to imbed suture, and is arranged with in proximal end face 17, is for the assembling after the suture influence that prevents this place, simultaneously, when assembling after also having prevented to the damage of suture.
Described suture ring 11 comprises a suture ring endoporus 111 of offering along its axis, and described inlet tube 23 is convexly equipped with on the bonnet 21 of blood pump body 2, enters heart 70 thereby described inlet tube 23 passes the suture ring endoporus 111 of described apex of the heart oversleeve 1.For the inlet tube 23 easier suture ring endoporus 111 that enter, do chamfered at the near-end of suture ring endoporus 111.Described suture ring endoporus 111 general titanium and the golden materials of adopting because it directly contacts with heart, in order to prevent its not injury of myocardium, are done rounding at its far-end and are handled.Be connected the back with heart for fear of blood pump body 2 and leak blood, on inlet tube 23, also be arranged with the inlet overcoat that has seal groove, be provided with an O RunddichtringO 24 in the seal groove.
Described flexible skirt 12 by hair anvil 121 and be used to coat described hair anvil 121 a hair anvil coat 120 form; Described hair anvil 121 uses implants the level material, can use silica gel material.Described hair anvil coat 120 is by making with the heart tissue compatibility material, for example the terylene cloth.Concrete, by medical suture flexible skirt 12 is sewn on the apex of the heart, thereby apex of the heart oversleeve 1 is fixed on the heart 70.
As shown in Figure 5, outwards be arranged with four inverted L shape slide units 26 on the described bonnet 21.Wherein the gap of two slide units 26 is oppositely arranged and forms a guide groove 25, and the gap of two other slide unit 26 is oppositely arranged and forms another guide groove 25.
As shown in Figure 8, be provided with the slide plate 30 that can in guide groove 25, radially move in per two slide units that are oppositely arranged 26, the slide plate 30 that described slide plate 30 only can described relatively blood pump body 2 moves radially because slide plate 30 is mobile guide groove 25 in, can not make slide plate 30 do axial motion.The thickness of described slide plate 30 is smaller or equal to the width of described circumferential groove in its end portion 13, so that described slide plate 30 can extend in the described circumferential groove in its end portion 13.The width of circumferential groove in its end portion 13 only needs in 1mm, and revolving fragment 40 adopts titanium alloy to make, and on the basis that has guaranteed connection reliability, makes the axial dimension of whole left ventricle donkey pump dwindle greatly like this, in use, needn't wear out diaphram 90 just can well finish the work.
As Fig. 6, shown in Figure 7, the rear end of described slide plate 30 is provided with one and conveniently pinches the step of holding 31, and the front center of slide plate 30 is provided with agnail 35, and described agnail 35 both sides all offer straight line distortion groove 34 to the extension of slide plate 30 rear ends.Distortion groove 34 and agnail 35 form middle the lobe of slide plates 30, and middle lobe has bigger morphotropism when stressed, thus the resistance when reducing slide plate 30 insertions.
Be concaved with a deep gouge 22 on the bonnet 21 of described blood pump body 2.The maximum outside diameter of described deep gouge 22 is more than or equal to the maximum outside diameter of described chimb 18, and the degree of depth of described deep gouge 22 is more than or equal to the thickness of described chimb 18, makes apex of the heart oversleeve 1 can be good at being set in inlet tube 23 and embeds in the deep gouge 22.
Also be concaved with slide plate deep gouge 27 on the described bonnet 21, the inner ring of described slide plate deep gouge 27 is the guide part 271 of a wedge shape, and the shape of the shape of described guide part 271 and described agnail 35 matches.The setting of guide part 271 is when pulling out for slide plate 30, from the deep gouge 22 easier slide plate deep gouges 27 that enter.Corresponding described slide plate 30 is provided with an agnail 35 that can be placed in the described slide plate deep gouge 27, and the height of described agnail 35 is greater than the degree of depth of described slide plate deep gouge 27.The degree of depth of described slide plate deep gouge 27 is less than the degree of depth of described deep gouge 22.Slide plate deep gouge 27 is higher than deep gouge 22, simultaneously, in conjunction with agnail 35, like this at slide plate 30 when pulled, can not be drawn out guide groove 25.
As Fig. 9, shown in Figure 10, after described slide plate 30 extend in the described circumferential groove in its end portion 13 movably, described chimb 18 was between the bottom surface of described slide plate 30 and described deep gouge 22, and described apex of the heart oversleeve 1 is fixing to axial with described blood pump body 2.At this moment, step inboard 312 is resisted against the slide unit outermost end, and the outer peripheral face of the step outside 311 and bonnet 12 is on an arcwall face.
Concrete, when not cooperating with suture ring 11, as shown in figure 10, agnail 35 makes slide plate 30 be difficult for skidding off from bonnet 21 in slide plate deep gouge 27.In the time will cooperating, agnail 35 pushes in the deep gouge 22, promptly enters in the circumferential groove in its end portion 13.Make slide plate 30 be difficult for slipping in the slide plate deep gouge 27, so just can not cause to connect lost efficacy (this moment, suture ring 11 can not deviate from) from the deep gouge 22 of bonnet 21.
When cooperating, slide plate 30 is head-to-foot, because the existence of agnail 35, and middle the lobe distortion of slide plate 30, the dependence spring force can compress suture ring 11, makes the blood pump body 2 can be along inlet tube 23 axial rotation.
At this moment, agnail 35 compresses suture ring 11, makes it can not rotate in radial position, i.e. radial position also is fixed.Middle lobe distortion, the both sides of slide plate 30 can be upturned, and the most significant end of circumferential groove in its end portion 13 will be higher than the both sides most significant end of described slide plate 30 perks, guarantees that slide plate 30 can not injure the stitching thread at suture ring 11 places when inserting.
In order further to stablize the fixed relationship of apex of the heart oversleeve 1 and blood pump body 2, slide plate 30 is tightened on bonnet 21.On the step 31 of slide plate 30, radially offer a through wires hole 32, offer on the surface of slide plate 30 one with the parallel Wire channel in building 33 of distortion groove 34, described through wires hole 32 also connects on same straight line with described Wire channel in building 33, offer on the end face of described slide unit 26 one with the line hole 28 of described Wire channel in building 33 UNICOMs, UNICOM is meant that the shade in described line hole 28 is in described Wire channel in building 33.During use, in advance line is entered through wires hole 32 and line hole 28 by Wire channel in building 33, treat that slide plate 30 inserts after, the linear system of putting on is in advance got final product well.Wire channel in building 33 can make line imbed wherein, when avoiding extracting slide plate 30 to the damage of line.
Below the concrete another embodiment of the present invention down of setting forth.
Consistent with first embodiment, apex of the heart oversleeve 1 comprises suture ring 11 and is set in the flexible skirt 12 that is used to be sewn in the apex of the heart of suture ring 11 peripheries.Also be provided with deep gouge 22 and slide unit 26 on the bonnet 21 of blood pump body 1, the gap between described slide unit 26 and the bonnet 21 is a guide groove 25.Be concaved with locking plate deep gouge 27 on the described bonnet 21, the inner ring of described locking plate deep gouge 27 is the guide part 271 of a wedge shape.
Different is, shown in Figure 11-13, the bonnet 21 of described blood pump body 2 is provided with two locking plates that only can move radially 30, and described locking plate 30 comprises a segmental arc 36, the two ends of described segmental arc 36 are respectively a straightway 37, and described straightway 37 stretches into movably in described guide groove 25.
As preferred embodiment, the axis of the straightway 37 of the same side of described two locking plates 30 is all on same straight line.Simultaneously, the operator pinches and holds for convenience, and the rear end of the straightway 37 of described locking plate 30 is provided with a step 31.
Described locking plate 30 be provided with one can be placed in the described locking plate deep gouge 27, with the agnail 35 that the shape of described guide part 271 matches, the height of described agnail 35 is greater than the degree of depth of described locking plate deep gouge 27.Described two locking plates 30 radially are moved into the diameter of its segmental arc 36 formed interior diameter of a circles of contact back less than described deep gouge 22.
As shown in figure 14, for locking plate 30 at initial position, when promptly also not inserting, configuration state sketch map on bonnet 21, the operator is by pinching the step 31 of holding rectilinear end 37, and relative locking plate 30 is pushed to relative position, and just apex of the heart oversleeve 1 and blood pump body 2 are locked.As shown in figure 15, after locking plate 30 inserted, step 31 was exposed to outside the slide unit 26.
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 (14)
1. a left ventricle auxiliary blood pump comprises apex of the heart oversleeve (1) that is fixedly connected on heart (70) and the blood pump body (2) of fixedlying connected with it;
Described apex of the heart oversleeve (1) comprises suture ring (11) and is set in the flexible skirt (12) of suture ring (11) periphery, and described suture ring (11) comprises a suture ring endoporus (111) of offering along its axis;
Described blood pump body (2) comprises that the suture ring endoporus (111) that is used to pass described apex of the heart oversleeve enters the inlet tube (23) of heart (70), and described inlet tube (23) is convexly set on the bonnet (21) of described blood pump body (2),
It is characterized in that:
Described suture ring (11) comprises a chimb that radially is convexly equipped with (18), forms a circumferential groove in its end portion (13) between described chimb (18) and the described flexible skirt (12);
The bonnet (21) of described blood pump body (2) only is provided with the slide plate (30) that can described relatively blood pump body (2) moves radially, the thickness of described slide plate (30) is smaller or equal to the width of described circumferential groove in its end portion (13), so that described slide plate (30) can extend in the described circumferential groove in its end portion (13); Be concaved with a deep gouge (22) on the bonnet (21) of described blood pump body (2), the maximum outside diameter of described deep gouge (22) is more than or equal to the maximum outside diameter of described chimb (18), and the degree of depth of described deep gouge (22) is more than or equal to the thickness of described chimb (18);
After described slide plate (30) extend in the described circumferential groove in its end portion (13) movably, described chimb (18) was positioned between the bottom surface of described slide plate (30) and described deep gouge (22), and described apex of the heart oversleeve (1) is fixing to axial with described blood pump body (2).
2. left ventricle auxiliary blood pump according to claim 1 is characterized in that: described flexible skirt (12) is made up of hair anvil (a 121) internal layer and the hair anvil coat (120) that coats described hair anvil (121).
3. left ventricle auxiliary blood pump according to claim 2, it is characterized in that: be concaved with an axial annular groove (14) on the proximal end face (17) of described suture ring (11), offer one group of suture hole (15) in the described axial annular groove (14), described suture hole (15) is a through hole, is used for medical suture and passes and stitch and tie in described flexible skirt (12).
4. according to the described arbitrary left ventricle auxiliary blood pump of claim 1 to 3, it is characterized in that: described bonnet (21) is gone up at least one guide groove of outer process (25), and described slide plate (30) radially slides in described guide groove (25).
5. left ventricle auxiliary blood pump according to claim 4 is characterized in that: outwards be provided with 2 inverted L shape slide units (26) on the described bonnet (21), the gap between described slide unit (26) and the bonnet (21) is guide groove (25).
6. left ventricle donkey pump according to claim 5, it is characterized in that: outwards be arranged with four inverted L shape slide units (26) on the described bonnet (21), wherein the gap of two slide units (26) is oppositely arranged and forms a guide groove (25), and the gap of two other slide unit (26) is oppositely arranged and forms another guide groove (25).
7. left ventricle auxiliary blood pump according to claim 4, it is characterized in that: be concaved with slide plate deep gouge (27) on the described bonnet (21), corresponding described slide plate (30) is provided with an agnail (35) that can be placed in the described slide plate deep gouge (27), and the height of described agnail (35) is greater than the degree of depth of described slide plate deep gouge (27).
8. left ventricle auxiliary blood pump according to claim 7 is characterized in that: the inner ring of described slide plate deep gouge (27) is the guide part (271) of a wedge shape, and the shape of the shape of described guide part (271) and described agnail (35) matches; The degree of depth of described slide plate deep gouge (27) is less than the degree of depth of described deep gouge (22).
9. left ventricle auxiliary blood pump according to claim 7 is characterized in that: the rear end of described slide plate (30) is provided with one and conveniently pinches the step of holding (31), and described agnail (35) is arranged on the front center of described slide plate (30); Described agnail (35) both sides all offer straight line distortion groove (34) to the extension of slide plate (30) rear end.
10. left ventricle auxiliary blood pump according to claim 9, it is characterized in that: radially offer a through wires hole (32) on the step of described slide plate (30), offer on the surface of described slide plate (30) one with distortion groove (34) parallel Wire channel in building (33), described through wires hole (32) also connects on same straight line with described Wire channel in building (33), offer a line hole (28) on the end face of described slide unit (26), described line hole (28) and described Wire channel in building (33) UNICOM.
11. left ventricle auxiliary blood pump according to claim 5, it is characterized in that: the bonnet (21) of described blood pump body (2) is provided with two locking plates that only can move radially (30), described locking plate comprises a segmental arc (36) at least, the two ends of described segmental arc (36) extend into respectively in 2 guide grooves (25), and described two locking plates (30) radially are moved into the diameter of the formed interior diameter of a circle of contact its segmental arc of back (36) less than described deep gouge (22).
12. left ventricle auxiliary blood pump according to claim 11, it is characterized in that: the two ends of the segmental arc (36) of described locking plate (30) are respectively a straightway (37), described straightway (37) stretches into movably in described guide groove (25), and the axis of the straightway (37) of the same side of described two locking plates (30) is all on same straight line.
13. left ventricle auxiliary blood pump according to claim 12, it is characterized in that: be concaved with locking plate deep gouge (27) on the described bonnet (21), corresponding described locking plate (30) is provided with an agnail (35) that can be placed in the described locking plate deep gouge (27), and the height of described agnail (35) is greater than the degree of depth of described locking plate deep gouge (27).
14. left ventricle auxiliary blood pump according to claim 13 is characterized in that: the inner ring of described locking plate deep gouge (27) is the guide part (271) of a wedge shape, and the shape of the shape of described guide part (271) and described agnail (35) matches; The rear end of the straightway (37) of described locking plate (30) is provided with one and conveniently pinches the step of holding (31).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110255361.7A CN102294057B (en) | 2011-08-31 | 2011-08-31 | Left ventricle auxiliary blood pump |
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| CN201110255361.7A CN102294057B (en) | 2011-08-31 | 2011-08-31 | Left ventricle auxiliary blood pump |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102698331A (en) * | 2012-06-26 | 2012-10-03 | 泰达国际心血管病医院 | Suture ring for left ventricle |
| CN110420048A (en) * | 2014-12-10 | 2019-11-08 | 心脏器械股份有限公司 | Heart pump implanted device and method |
| US10722631B2 (en) | 2018-02-01 | 2020-07-28 | Shifamed Holdings, Llc | Intravascular blood pumps and methods of use and manufacture |
| US11185677B2 (en) | 2017-06-07 | 2021-11-30 | Shifamed Holdings, Llc | Intravascular fluid movement devices, systems, and methods of use |
| US11511103B2 (en) | 2017-11-13 | 2022-11-29 | Shifamed Holdings, Llc | Intravascular fluid movement devices, systems, and methods of use |
| US11654275B2 (en) | 2019-07-22 | 2023-05-23 | Shifamed Holdings, Llc | Intravascular blood pumps with struts and methods of use and manufacture |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2022540616A (en) | 2019-07-12 | 2022-09-16 | シファメド・ホールディングス・エルエルシー | Intravascular blood pump and methods of manufacture and use |
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| CN110420048B (en) * | 2014-12-10 | 2022-06-17 | 心脏器械股份有限公司 | Cardiac pump implant apparatus and method |
| US11185677B2 (en) | 2017-06-07 | 2021-11-30 | Shifamed Holdings, Llc | Intravascular fluid movement devices, systems, and methods of use |
| US11511103B2 (en) | 2017-11-13 | 2022-11-29 | Shifamed Holdings, Llc | Intravascular fluid movement devices, systems, and methods of use |
| US10722631B2 (en) | 2018-02-01 | 2020-07-28 | Shifamed Holdings, Llc | Intravascular blood pumps and methods of use and manufacture |
| US11229784B2 (en) | 2018-02-01 | 2022-01-25 | Shifamed Holdings, Llc | Intravascular blood pumps and methods of use and manufacture |
| US11654275B2 (en) | 2019-07-22 | 2023-05-23 | Shifamed Holdings, Llc | Intravascular blood pumps with struts and methods of use and manufacture |
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|---|---|
| CN102294057B (en) | 2015-01-14 |
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Application publication date: 20111228 Assignee: Ningbo Tongda medical instrument limited company Assignor: SUZHOU TONGXIN MEDICAL DEVICES CO.,LTD. Contract record no.: 2015320010142 Denomination of invention: Left ventricle auxiliary blood pump Granted publication date: 20150114 License type: Exclusive License Record date: 20150911 |
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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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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. |
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