CN202314597U - Left ventricle assist blood pump - Google Patents
Left ventricle assist blood pump Download PDFInfo
- Publication number
- CN202314597U CN202314597U CN201120324305XU CN201120324305U CN202314597U CN 202314597 U CN202314597 U CN 202314597U CN 201120324305X U CN201120324305X U CN 201120324305XU CN 201120324305 U CN201120324305 U CN 201120324305U CN 202314597 U CN202314597 U CN 202314597U
- Authority
- CN
- China
- Prior art keywords
- blood pump
- locking plate
- left ventricle
- pump body
- suture ring
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
- A61M60/80—Constructional details other than related to driving
- A61M60/855—Constructional details other than related to driving of implantable pumps or pumping devices
- A61M60/861—Connections or anchorings for connecting or anchoring pumps or pumping devices to parts of the patient's body
- A61M60/863—Apex rings
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
- A61M60/10—Location thereof with respect to the patient's body
- A61M60/122—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body
- A61M60/165—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body implantable in, on, or around the heart
- A61M60/178—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body implantable in, on, or around the heart drawing blood from a ventricle and returning the blood to the arterial system via a cannula external to the ventricle, e.g. left or right ventricular assist devices
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
- A61M60/20—Type thereof
- A61M60/205—Non-positive displacement blood pumps
- A61M60/216—Non-positive displacement blood pumps including a rotating member acting on the blood, e.g. impeller
- A61M60/226—Non-positive displacement blood pumps including a rotating member acting on the blood, e.g. impeller the blood flow through the rotating member having mainly radial components
- A61M60/232—Centrifugal pumps
Abstract
The utility model discloses a left ventricle assist blood pump, comprising a ventricular apex shaft sleeve and a blood pump body fixedly connected with the ventricular apex shaft sleeve, wherein the ventricular apex shaft sleeve comprises a suture ring and a flexible skirt edge sheathed at the periphery of the suture ring, and the suture ring comprises a suture ring inner hole; the blood pump body comprises an inlet pipe, the inlet pipe is arranged on a rear cover of the blood pump body in a protruding manner, the suture ring comprises a convex edge raised in the radial direction, and a circumferential groove is formed between the convex edge and the flexible skirt edge; and the rear cover of the blood pump body is provided with a locking piece which only can move in radial direction relative to the blood pump body, the locking piece can move and extend into the circumferential groove, the convex edge is arranged between the locking piece and the bottom surface of a sunk groove, and the ventricular apex shaft sleeve is fixed in axial direction relative to the blood pump body. In left ventricle assist blood pump disclosed by the utility model, the locking piece is adopted for fixing positions of the ventricular apex shaft sleeve and the blood pump, thus connection of the ventricular apex shaft sleeve and the blood pump is more convenient and reliable. Meanwhile, axial dimension of the inlet pipe of the blood pump is shortened, the left ventricle assist blood pump can be favourably implanted into a chest under the condition that diaphragm muscle is not destroyed, and success rate of an operation is greatly improved.
Description
Technical field
This utility model relates to a kind of left ventricle auxiliary blood pump, relates in particular to the syndeton of a kind of left ventricle auxiliary blood pump and heart, belongs 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, its destruction to blood is minimum, owing to do not have mechanical wear so good endurance in theory.But magnetic suspension structure is complicated, 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 on diaphram, bore a hole 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 prone to go 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 be implanted the 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.
The utility model content
The purpose of this utility model is to solve above-mentioned technical problem, proposes a kind of left ventricle auxiliary blood pump.
The purpose of this utility model will be achieved through following technical scheme:
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 that is fixedly connected with it;
Said apex of the heart oversleeve comprises suture ring and is set in the flexible skirt of suture ring periphery, and said suture ring comprises the suture ring endoporus offered along its axis;
Said blood pump body comprises that the suture ring endoporus that is used to pass said apex of the heart oversleeve gets into the inlet tube of heart, and said inlet tube is convexly set on the bonnet of said blood pump body,
Said suture ring comprises the chimb that radially is convexly equipped with, forms a circumferential groove in its end portion between said chimb and the said flexible skirt;
The bonnet of said blood pump body is provided with two locking plates that only can said relatively blood pump body move radially, and the thickness of said locking plate is smaller or equal to the width of said circumferential groove in its end portion, so that said locking plate can extend in the said circumferential groove in its end portion; Be concaved with a deep gouge on the bonnet of said blood pump body, the maximum outside diameter of said deep gouge is more than or equal to the maximum outside diameter of said chimb, and the degree of depth of said deep gouge is more than or equal to the thickness of said chimb; Said locking plate comprises a segmental arc at least, and said 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 said deep gouge;
After said locking plate extend in the said circumferential groove in its end portion movably, said chimb was between the bottom surface of said locking plate and said deep gouge, and said apex of the heart oversleeve and said blood pump body are fixing to axial.
Preferably, said flexible skirt is made up of a hair anvil internal layer and the hair anvil coat that coats said hair anvil.
Preferably, be concaved with an axial annular groove on the proximal end face of said suture ring, offer one group of suture hole in the said axial annular groove, said suture hole is a through hole, is used for medical suture and passes and stitch and tie in said flexible skirt.
Preferably, at least one guide groove of outer process, said locking plate radially slides in said guide groove on the said bonnet.
Preferably, outwards be provided with 2 inverted L shape slide units on the said bonnet, the gap between said slide unit and the bonnet is a guide groove.
Preferably, the degree of depth of said locking plate deep gouge is less than the degree of depth of said deep gouge.
Preferably, the two ends of the segmental arc of said locking plate are respectively a straightway, and said straightway stretches into movably in said guide groove.
Preferably, the axis of the straightway of the same side of said two locking plates is all on same straight line.
Preferably, be concaved with the locking plate deep gouge on the said bonnet, corresponding said locking plate is provided with an agnail that can be placed in the said locking plate deep gouge, and the height of said agnail is greater than the degree of depth of said locking plate deep gouge.
Preferably, the inner ring of said locking plate deep gouge is the guide part of a wedge shape, and the shape of said guide part and the shape of said agnail match.
Preferably, the rear end of the straightway of said locking plate is provided with one and conveniently pinches the step of holding.
The beneficial effect of this utility model is embodied in: adopt locking 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 auxiliary blood pump in the thoracic cavity, improved the success rate of operation greatly.
Description of drawings
Fig. 1 be this utility model in use with heart syndeton sketch map.
Fig. 2 is the perspective view of this utility model apex of the heart oversleeve.
Fig. 3 is the left and right sides view of Fig. 2.
Fig. 4 is the cross section structure sketch map of this utility model apex of the heart oversleeve.
Fig. 5 is the structural representation of this utility model locking plate in bonnet.
Fig. 6 is the rear cover structure sketch map of this utility model, and this moment, locking plate was not in bonnet.
Fig. 7 is this utility model locking plate structural representation.
Fig. 8 is this utility model locking plate rear cover structure sketch map when not pushing.
Fig. 9 is this utility model locking plate rear cover structure sketch map when pushing.
The specific embodiment
This utility model 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 that is fixedly connected with apex of the heart oversleeve 1, be convexly equipped with an entering heart 70 on the blood pump body 2, make the ventricle inner blood get into the inlet tube 23 of blood pump body 2.Said 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, said apex of the heart oversleeve 1 comprises suture ring 11 and is set in the flexible skirt 12 of suture ring 11 peripheries like Fig. 2.Said suture ring 11 comprises the chimb 18 that radially is convexly equipped with, forms a circumferential groove in its end portion 13 between said chimb 18 and the said flexible skirt 12; Be concaved with an axial annular groove 14 on the proximal end face 17 of said suture ring 11, offer one group of suture hole 15 in the said axial annular groove 14, said suture hole 15 is a through hole, is used for suture and passes and stitch and tie in said 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.
Said suture ring 11 comprises the suture ring endoporus 111 offered along its axis, and said inlet tube 23 is convexly equipped with on the bonnet 21 of blood pump body 2, gets into hearts 70 thereby said inlet tube 23 passes the suture ring endoporus 111 of said apex of the heart oversleeve 1.For inlet tube 23 gets into suture ring endoporus 111 more easily, do chamfered at the near-end of suture ring endoporus 111.Said 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.
Said flexible skirt 12 by hair anvil 121 and be used to coat said hair anvil 121 a hair anvil coat 120 form; Said hair anvil 121 uses implants the level material, can use silica gel material.Said hair anvil coat 120 is by making with the heart tissue compatibility material, for example the terylene cloth.Concrete, through 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.
In conjunction with shown in Figure 5, be concaved with a deep gouge 22 on the bonnet 21 of said blood pump body 2.The maximum outside diameter of said deep gouge 22 is more than or equal to the maximum outside diameter of said chimb 18, and the degree of depth of said deep gouge 22 is more than or equal to the thickness of said 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.
Outwards be provided with 2 inverted L shape slide units 26 on the bonnet 21, the gap between said slide unit 26 and the bonnet 21 is a guide groove 25.The bonnet 21 of said blood pump body 2 is provided with two locking plates that only can move radially 30, and said locking plate 30 comprises a segmental arc 36, and the two ends of said segmental arc 36 are respectively a straightway 37, and said straightway 37 stretches into movably in said guide groove 25.
The locking plate 30 that said locking plate 30 only can said relatively blood pump body 2 moves radially because locking plate 30 is mobile guide groove 25 in, can not make locking plate 30 do axial motion.The thickness of said locking plate 30 is smaller or equal to the width of said circumferential groove in its end portion 13, so that said locking plate 30 can extend in the said 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 process, and on the basis that has guaranteed connection reliability, makes the axial dimension of whole left ventricle auxiliary blood pump dwindle greatly like this; In use, needn't wear out diaphram 90 just can well finish the work.
Further, the two ends of the segmental arc 36 of said locking plate 30 are respectively the straightway 37 that stretches into movably in guide groove 25.The axis of the straightway 37 of the same side of two locking plates 30 is all on same straight line.Simultaneously, the operator pinches and holds for ease, and the rear end of the straightway 37 of said locking plate 30 is provided with a step 31.
Said locking plate 30 be provided with one can be placed in the said locking plate deep gouge 27, with the agnail 35 that the shape of said guide part 271 matches, the height of said agnail 35 is greater than the degree of depth of said locking plate deep gouge 27.Said 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 said deep gouge 22.
As shown in Figure 8, for locking plate 30 at initial position, when promptly also not inserting; Configuration state sketch map on bonnet 21; The operator is through 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 is locked with blood pump body 2.As shown in Figure 9, after locking plate 30 inserted, step 31 was exposed to outside the slide unit 26.
Concrete, when not cooperating with suture ring 11, agnail 35 makes locking plate 30 be difficult for skidding off from bonnet 21 in locking 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 locking plate 30 be difficult for slipping in the locking 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, locking plate 30 is head-to-foot, because the existence of agnail 35 leans on spring force can suture ring 11 be compressed, 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 is also fixed.
This utility model still has numerous embodiments, and all employing equivalents or equivalent transformation and all technical schemes of forming all drop within the protection domain of this utility model.
Claims (10)
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) that is fixedly connected with it;
Said apex of the heart oversleeve (1) comprises suture ring (11) and is set in the flexible skirt (12) of suture ring (11) periphery, and said suture ring (11) comprises the suture ring endoporus (111) offered along its axis;
Said blood pump body (2) comprises that the suture ring endoporus (111) that is used to pass said apex of the heart oversleeve gets into the inlet tube (23) of heart (70), and said inlet tube (23) is convexly set on the bonnet (21) of said blood pump body (2),
It is characterized in that:
Said suture ring (11) comprises the chimb (18) that radially is convexly equipped with, forms a circumferential groove in its end portion (13) between said chimb (18) and the said flexible skirt (12);
The bonnet (21) of said blood pump body (2) is provided with two locking plates (30) that only can said relatively blood pump body (2) move radially; The thickness of said locking plate (30) is smaller or equal to the width of said circumferential groove in its end portion (13), so that said locking plate (30) can extend in the said circumferential groove in its end portion (13); Be concaved with a deep gouge (22) on the bonnet (21) of said blood pump body (2), the maximum outside diameter of said deep gouge (22) is more than or equal to the maximum outside diameter of said chimb (18), and the degree of depth of said deep gouge (22) is more than or equal to the thickness of said chimb (18); Said locking plate comprises a segmental arc (36) at least, and said 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 said deep gouge (22);
After said locking plate (30) extend in the said circumferential groove in its end portion (13) movably, said chimb (18) was positioned between the bottom surface of said locking plate (30) and said deep gouge (22), and said apex of the heart oversleeve (1) is fixing to axial with said blood pump body (2).
2. left ventricle auxiliary blood pump according to claim 1 is characterized in that: said flexible skirt (12) is made up of hair anvil (a 121) internal layer and the hair anvil coat (120) that coats said hair anvil (121).
3. a kind of 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 said suture ring (11); Offer one group of suture hole (15) in the said axial annular groove (14); Said suture hole (15) is a through hole, is used for medical suture and passes and stitch and tie in said flexible skirt (12).
4. according to described any left ventricle auxiliary blood pump of claim 1 to 3, it is characterized in that: said bonnet (21) is gone up at least one guide groove of outer process (25), and said locking plate (30) radially slides in said guide groove (25).
5. a kind of 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 said bonnet (21), the gap between said slide unit (26) and the bonnet (21) is guide groove (25).
6. a kind of left ventricle auxiliary blood pump according to claim 5 is characterized in that: the two ends of the segmental arc (36) of said locking plate (30) are respectively a straightway (37), and said straightway (37) stretches into movably in said guide groove (25).
7. a kind of left ventricle auxiliary blood pump according to claim 6 is characterized in that: the axis of the straightway (37) of the same side of said two locking plates (30) is all on same straight line.
8. a kind of left ventricle auxiliary blood pump according to claim 7; It is characterized in that: be concaved with locking plate deep gouge (27) on the said bonnet (21); Corresponding said locking plate (30) is provided with an agnail (35) that can be placed in the said locking plate deep gouge (27), and the height of said agnail (35) is greater than the degree of depth of said locking plate deep gouge (27).
9. a kind of left ventricle auxiliary blood pump according to claim 8 is characterized in that: the inner ring of said locking plate deep gouge (27) is the guide part (271) of a wedge shape, and the shape of the shape of said guide part (271) and said agnail (35) matches.
10. want 9 described a kind of left ventricle auxiliary blood pumps according to right, it is characterized in that: the rear end of the straightway (37) of said locking plate (30) is provided with one and conveniently pinches the step of holding (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120324305XU CN202314597U (en) | 2011-08-31 | 2011-08-31 | Left ventricle assist blood pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120324305XU CN202314597U (en) | 2011-08-31 | 2011-08-31 | Left ventricle assist blood pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202314597U true CN202314597U (en) | 2012-07-11 |
Family
ID=46426602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120324305XU Expired - Lifetime CN202314597U (en) | 2011-08-31 | 2011-08-31 | Left ventricle assist blood pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202314597U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108472422A (en) * | 2015-12-21 | 2018-08-31 | 心脏器械股份有限公司 | Implantable Mechanical circulatory support equipment |
| CN111097077A (en) * | 2020-01-08 | 2020-05-05 | 上海市东方医院（同济大学附属东方医院） | External magnetic drive liquid suspension axial-flow type blood pump |
-
2011
- 2011-08-31 CN CN201120324305XU patent/CN202314597U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108472422A (en) * | 2015-12-21 | 2018-08-31 | 心脏器械股份有限公司 | Implantable Mechanical circulatory support equipment |
| CN108472422B (en) * | 2015-12-21 | 2020-06-30 | 心脏器械股份有限公司 | Implantable mechanical circulatory support device |
| CN111097077A (en) * | 2020-01-08 | 2020-05-05 | 上海市东方医院（同济大学附属东方医院） | External magnetic drive liquid suspension axial-flow type blood pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120711 |