CN105327412A - Heart function assisting device used in operation - Google Patents
Heart function assisting device used in operation Download PDFInfo
- Publication number
- CN105327412A CN105327412A CN201510836884.9A CN201510836884A CN105327412A CN 105327412 A CN105327412 A CN 105327412A CN 201510836884 A CN201510836884 A CN 201510836884A CN 105327412 A CN105327412 A CN 105327412A
- Authority
- CN
- China
- Prior art keywords
- magnet
- pump
- pole
- blood vessel
- cardiac function
- 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.)
- Pending
Links
Classifications
-
- 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
- A61M60/104—Extracorporeal pumps, i.e. the blood being pumped outside the patient's body
- A61M60/109—Extracorporeal pumps, i.e. the blood being pumped outside the patient's body incorporated within extracorporeal blood circuits or systems
- A61M60/113—Extracorporeal pumps, i.e. the blood being pumped outside the patient's body incorporated within extracorporeal blood circuits or systems in other functional devices, e.g. dialysers or heart-lung machines
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/04—Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
- A61F2/06—Blood vessels
-
- 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
- A61M60/40—Details relating to driving
- A61M60/403—Details relating to driving for non-positive displacement blood pumps
- A61M60/419—Details relating to driving for non-positive displacement blood pumps the force acting on the blood contacting member being permanent magnetic, e.g. from a rotating magnetic coupling between driving and driven magnets
-
- 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
- A61M60/50—Details relating to control
-
- 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
- A61M2210/00—Anatomical parts of the body
- A61M2210/12—Blood circulatory system
- A61M2210/125—Heart
Abstract
The invention discloses a heart function assisting device used in an operation. The heart function assisting device comprises an artificial blood vessel, a blood pump arranged in the artificial blood vessel, and a drive which is positioned outside the artificial blood vessel and is used for driving the blood pump to run, wherein the blood pump and the drive are positioned outside a human body; the inlet end of the artificial blood vessel is used for communicating with the left ventricle of the human body, and the outlet end of the artificial blood vessel is used for communicating with the main artery of the human body; an impeller of the blood pump is provided with a pump magnet; and the drive can generate a magnetic field of which the N pole and the S pole appear alternately in a direction facing towards the pump magnet so as to drive the pump magnet to drive the impeller of the blood pump to rotate. The technical problem solved by the invention is to overcome the defect that the heart functions of part of patients cannot be normally maintained in operations at present, so that the heart function assisting device used in an operation, which can maintain normal circulation of blood in the operation, is provided.
Description
Technical field
The present invention relates to medical field.Be specially the cardiac function auxiliary device in a kind of operation.
Background technology
At medical field, for internal organs as the treatment of heart, kidney or other diseases needs to perform the operation usually, but the general more complicated of this operation, the persistent period is long, and risk is also larger.Especially to the bad patient of some cardiac functions or the gerontal patient that has a weak heart, doctor may consider that its heart can not maintain at intra-operative and run its function, thus suggestion patient adopts conservative treatment instead of performs an operation, therefore a lot of patient also cannot obtain better medical effect by performing an operation.
Summary of the invention
The technical problem that the present invention solves is to overcome the shortcoming that when performing the operation at present, some patients cardiac function can not normally maintain, and provides a kind of cardiac function auxiliary device that can maintain when performing the operation in the operation of blood normal circulation.
Cardiac function auxiliary device in operation of the present invention, comprise artificial blood vessel, be located at the blood pump in artificial blood vessel and be positioned at the driver that described artificial blood vessel drives described blood pump to run outward, described blood pump and driver are positioned at outside human body, entrance one end of described artificial blood vessel is used for being communicated with the left ventricle of human body, the exit end of described artificial blood vessel is used for being communicated with the aorta of human body, the impeller of described blood pump is provided with pump magnet, described driver can produce N pole on the direction towards described pump magnet and S pole replaces the magnetic field of appearance thus drives described pump magnet to drive the vane rotary of described blood pump.
As preferably, described pump magnet is the cylinder that can rotate around its axis, and its diameter is d
1, its N pole and S extremely all extend in the whole length of cylinder.
As preferably, the driving device that described driver comprises magnet and drives described magnet to rotate, described magnet is permanent magnet, and described magnet is diameter is d
2cylinder, N pole and S all extend in the whole length of cylinder.
As preferably, described magnet comprises two pairs of magnetic poles, and each magnetic pole accounts for 1/4 of magnet cylinder, and adjacent magnetic pole is heteropole.
As preferably, d
2=2d
1.
As preferably, described driver comprises controller, pulsqe distributor, drive circuit and coil, and pulsqe distributor is with the sense of current of certain frequency shift drive circuit under the control of the controller, thus makes one end of coil alternately form N pole and S pole.
Compared to the prior art cardiac function auxiliary device in operation of the present invention, has following beneficial effect:
1, starting driver makes its driving pump magnet rotate, thus drives the vane rotary of blood pump, is pumped by blood and makes it flow to aorta, thus flow to whole body from left ventricle.In operation, the cardiac function auxiliary device in operation of the present invention can replace the heart of patient to realize cardiac function, thus ensure that carrying out smoothly of operation.After having performed the operation, remove artificial blood vessel and left ventricle and to be aortally connected, the function of patient self heart can be recovered.Simultaneously, cardiac function auxiliary device in operation of the present invention adopts the mode of field drives, do not need between driver with blood pump, be connected electric wire or other driver parts, except blood pump, blood does not need to contact with miscellaneous part yet, ensure that the safety of the cardiac function auxiliary device in operation.
2, driver comprises magnet and drives the driving device of magnet rotation, magnet is also permanent magnet, and magnet comprises two pairs of magnetic poles, and each magnetic pole accounts for 1/4 of magnet cylinder, and adjacent magnetic pole be heteropole namely, N pole and S pole are alternately arranged.When magnet rotates 1 circle, pump magnet rotates 2 circles.
3, driver comprises controller, pulsqe distributor, drive circuit and coil, and pulsqe distributor is with the sense of current in certain frequency shift coil under the control of the controller, thus makes one end of coil alternately form N pole and S pole.The frequency that in coil, the sense of current changes is higher, and the angular velocity of rotation of pump magnet is higher.The anglec of rotation that this type of drive is more convenient for adjusting pump magnet is fast.
Accompanying drawing explanation
Fig. 1 is the structural representation of the cardiac function auxiliary device in the operation of first embodiment of the invention.
Fig. 2 is the driving principle figure of the cardiac function auxiliary device in the operation in Fig. 1.
Fig. 3 is the sectional view of the cardiac function auxiliary device in the operation in Fig. 2 along A-A.
Fig. 4 is the driving principle figure of the cardiac function auxiliary device in the operation of second embodiment of the invention.
Reference numeral
11-artificial blood vessel, 111-entrance, 112-exports, 12-blood pump, 121-impeller, 122-pump magnet, 13-driver, 131-magnet, 132-driving device, 14-left ventricle, 15-aorta;
21-artificial blood vessel, 22-driver, 221-controller, 222-pulsqe distributor, 223-drive circuit, 224-coil, 225-driving power, 226-controls power supply, 23-blood pump, 231-pump magnet.
Detailed description of the invention
Fig. 1 is the structural representation of the cardiac function auxiliary device in the operation of one embodiment of the invention.Cardiac function auxiliary device in operation of the present invention, comprises artificial blood vessel 11, is located at the blood pump 12 in artificial blood vessel 11 and is positioned at the outer driver 13 driving described blood pump 12 to run of described artificial blood vessel 11.Described blood pump 12 and driver 13 are positioned at outside human body, entrance 111 one end of described artificial blood vessel 11 is used for being communicated with the left ventricle 14 of human body, outlet 112 one end of described artificial blood vessel 11 is used for being communicated with the aorta 15 of human body, the impeller 121 of described blood pump 12 is provided with pump magnet 122, and described driver 13 can produce N pole on the direction towards described pump magnet 122 and S pole replaces the magnetic field of appearance thus drives described pump magnet 122 to drive the impeller 121 of described blood pump 12 to rotate.In the present embodiment, the impeller 121 of artificial blood vessel 11 and blood pump 12 is made up of the material of biocompatibility, as titanium alloy or polyformaldehyde.Blood pump 12 is axial-flow pump.
For the patient that cardiac function is not good, before surgery, the entrance 111 of the artificial blood vessel 11 of the cardiac function auxiliary device in operation of the present invention can be communicated with the left ventricle 14 of patient, preferably be communicated with the bottom of left ventricle 14, to avoid the more position of blood vessel above ventricle, artificial blood vessel 11 is exported 112 and be communicated with the aorta 15 of patient.Starting driver 13 makes its driving pump magnet 122 rotate, thus drives the impeller 121 of blood pump 12 to rotate, and is pumped by blood and makes it flow to aorta 15, thus flow to whole body from left ventricle 14.
In operation, the cardiac function auxiliary device in operation of the present invention can replace the heart of patient to realize cardiac function, thus ensure that carrying out smoothly of operation.After having performed the operation, remove the connection of artificial blood vessel 11 and left ventricle 14 and aorta 15, the function of patient self heart can be recovered.Simultaneously, cardiac function auxiliary device in operation of the present invention adopts the mode of field drives, do not need between driver 13 with blood pump 12, be connected electric wire or other driver parts, except blood pump 12, blood does not need to contact with miscellaneous part yet, ensure that the safety of the cardiac function auxiliary device in operation.
Fig. 2 is the driving principle figure figure of the cardiac function auxiliary device in the operation in Fig. 1, and 3 is the sectional view of the cardiac function auxiliary device in the operation in Fig. 2 along A-A.As shown in Figures 2 and 3, in the present embodiment, described pump magnet 122 is the cylinder that can rotate around its axis, and its diameter is d
1, its N pole and S extremely all extend in the whole length of cylinder, and N pole and S pole account for the half of cylinder respectively.In the present embodiment, the driving device 132 that described driver 13 comprises magnet 131 and drives described magnet 131 to rotate, described magnet 131 is also permanent magnet, described magnet 131 for diameter be d
2cylinder, N pole and S all extend in the whole length of cylinder.And d
2be more than or equal to d
1, described magnet 131 comprises two pairs of magnetic poles, and each magnetic pole accounts for 1/4 of magnet 131 cylinder, and adjacent magnetic pole be heteropole namely, N pole and S pole are alternately arranged.When magnet 131 rotates 1 circle, pump magnet 122 rotates 2 circles.
In the present embodiment, d
2=2d
1, the arc length shared by each magnetic pole of such magnet 131 is equal with the arc length shared by each magnetic pole of pump magnet 122, that is, π d
2/ 4=π d
1/ 2, make to be formed between magnet 131 and pump magnet 122 more accurate gear ratio.
Between magnet 131 and pump magnet 122, there is certain distance L, distance L can prevent from producing between magnet 131 and pump magnet 122 the larger suction hindering magnet 131 driving pump magnet 122 to rotate, and can ensure that the smooth driving pump magnet 122 of magnet 131 rotates.The rotating shaft of magnet 131 is preferably relative with the rotating shaft of pump magnet 122 and be arranged in parallel, certainly, even if the two does not parallelly also rotate relative to also realizing magnet 131 driving pump magnet 122.
Fig. 4 is the driving principle figure of the cardiac function auxiliary device in the operation of second embodiment of the invention.In the present embodiment, blood pump 23 is identical with the first embodiment with the setting of artificial blood vessel 21, only has driver 22 different from the first embodiment.As shown in Figure 4, in the present embodiment, described driver 22 comprises controller 221, pulsqe distributor 222, drive circuit 223 and coil 224, under the control of controller 221, pulsqe distributor 222 is with the sense of current of certain frequency shift drive circuit 223, thus makes one end of coil 224 alternately form N pole and S pole.Wherein, controller 221 and pulsqe distributor 222 are powered by control power supply 226, and drive circuit 223 is powered by driving power 225.
Under the control of controller 221, pulsqe distributor 222 is with the sense of current in certain frequency shift drive circuit 223 and coil 224, thus makes one end of coil 224 alternately form N pole and S pole.Like this, the rotary speed of the pump magnet 231 of blood pump 23 is relevant with the frequency that the sense of current in coil 224 changes, that is, the frequency that in coil 224, the sense of current changes is higher, and the angular velocity of rotation of pump magnet 231 is higher.The anglec of rotation that this type of drive is more convenient for adjusting pump magnet 231 is fast.In the present embodiment, in order to the magnetic field intensity of intensifier coil 224, also can coil 224 be wrapped on iron core, make it form electric magnet.
Above embodiment is only exemplary embodiment of the present invention, and be not used in restriction the present invention, protection scope of the present invention is defined by the claims.Those skilled in the art are in essence of the present invention and protection domain, and the various amendment make the present invention or equivalent replacement also drop in protection scope of the present invention.
Claims (6)
1. the cardiac function auxiliary device in an operation, it is characterized in that, comprise artificial blood vessel, be located at the blood pump in artificial blood vessel and be positioned at the driver that described artificial blood vessel drives described blood pump to run outward, described blood pump and driver are positioned at outside human body, entrance one end of described artificial blood vessel is used for being communicated with the left ventricle of human body, the exit end of described artificial blood vessel is used for being communicated with the aorta of human body, the impeller of described blood pump is provided with pump magnet, described driver can produce N pole on the direction towards described pump magnet and S pole replaces the magnetic field of appearance thus drives described pump magnet to drive the vane rotary of described blood pump.
2. the cardiac function auxiliary device in operation according to claim 1, is characterized in that, described pump magnet is the cylinder that can rotate around its axis, and its diameter is d
1, its N pole and S extremely all extend in the whole length of cylinder.
3. the cardiac function auxiliary device in operation according to claim 2, is characterized in that, the driving device that described driver comprises magnet and drives described magnet to rotate, and described magnet is permanent magnet, and described magnet is diameter is d
2cylinder, N pole and S all extend in the whole length of cylinder.
4. the cardiac function auxiliary device in operation according to claim 3, is characterized in that, described magnet comprises two pairs of magnetic poles, and each magnetic pole accounts for 1/4 of magnet cylinder, and adjacent magnetic pole is heteropole.
5. the cardiac function auxiliary device in operation according to claim 4, is characterized in that, d
2=2d
1.
6. the cardiac function auxiliary device in operation according to claim 2, it is characterized in that, described driver comprises controller, pulsqe distributor, drive circuit and coil, pulsqe distributor is with the sense of current of certain frequency shift drive circuit under the control of the controller, thus makes one end of coil alternately form N pole and S pole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510836884.9A CN105327412A (en) | 2015-11-26 | 2015-11-26 | Heart function assisting device used in operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510836884.9A CN105327412A (en) | 2015-11-26 | 2015-11-26 | Heart function assisting device used in operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105327412A true CN105327412A (en) | 2016-02-17 |
Family
ID=55278309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510836884.9A Pending CN105327412A (en) | 2015-11-26 | 2015-11-26 | Heart function assisting device used in operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105327412A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111840682A (en) * | 2020-07-28 | 2020-10-30 | 云南省阜外心血管病医院 | Blood pump beneficial to improving coronary blood supply |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10272179A (en) * | 1997-03-31 | 1998-10-13 | Kyocera Corp | Magnet coupling, and magnet pump using the same |
| CN1342497A (en) * | 2000-09-14 | 2002-04-03 | 李国荣 | External electromagnetic drive controller of blood pump in artery |
| CN1376523A (en) * | 2001-03-26 | 2002-10-30 | 张大幕 | Rotary magnetic field driven auxiliary circulating equipment |
| CN102166379A (en) * | 2011-03-16 | 2011-08-31 | 北京工业大学 | Adaptive drive system of aortic blood pump position |
| WO2013173751A1 (en) * | 2012-05-17 | 2013-11-21 | Heartware, Inc. | Magnetically suspended pump |
| CN103446635A (en) * | 2013-09-09 | 2013-12-18 | 北京工业大学 | In vitro driving method of artificial heart pump |
| CN205215812U (en) * | 2015-11-26 | 2016-05-11 | 曾宪林 | Heart function auxiliary device who uses in operation |
-
2015
- 2015-11-26 CN CN201510836884.9A patent/CN105327412A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10272179A (en) * | 1997-03-31 | 1998-10-13 | Kyocera Corp | Magnet coupling, and magnet pump using the same |
| CN1342497A (en) * | 2000-09-14 | 2002-04-03 | 李国荣 | External electromagnetic drive controller of blood pump in artery |
| CN1376523A (en) * | 2001-03-26 | 2002-10-30 | 张大幕 | Rotary magnetic field driven auxiliary circulating equipment |
| CN102166379A (en) * | 2011-03-16 | 2011-08-31 | 北京工业大学 | Adaptive drive system of aortic blood pump position |
| WO2013173751A1 (en) * | 2012-05-17 | 2013-11-21 | Heartware, Inc. | Magnetically suspended pump |
| CN103446635A (en) * | 2013-09-09 | 2013-12-18 | 北京工业大学 | In vitro driving method of artificial heart pump |
| CN205215812U (en) * | 2015-11-26 | 2016-05-11 | 曾宪林 | Heart function auxiliary device who uses in operation |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111840682A (en) * | 2020-07-28 | 2020-10-30 | 云南省阜外心血管病医院 | Blood pump beneficial to improving coronary blood supply |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160217 |
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| WD01 | Invention patent application deemed withdrawn after publication |