CN1254598A - Transplanted endarterial miniature auxiliary circulating device of ventricle - Google Patents
Transplanted endarterial miniature auxiliary circulating device of ventricle Download PDFInfo
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- CN1254598A CN1254598A CN 99126258 CN99126258A CN1254598A CN 1254598 A CN1254598 A CN 1254598A CN 99126258 CN99126258 CN 99126258 CN 99126258 A CN99126258 A CN 99126258A CN 1254598 A CN1254598 A CN 1254598A
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- pump
- intubate
- ventricle
- impeller
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Abstract
A transplanted auxiliary circulating device for cardiosurgery features that its power is transferred by magnetic drive mode. Said device is divided into external driver and auxiliary unit transplanted in human body. Said external driver is a rotary magnetic field generator to generate a rotary magnetic field strong enough. Said auxiliary unit is a miniature axial-flow pump with high-energy magnets embedded in blade wheel and can rotate to drive blood flow under the drive of rotary magnetic field. Said pump is transplanted to the position of heart aortic valve or pulmonary valve for reducing heart load and helping recovery of heart.
Description
The invention belongs to the biomedical engineering category, is the mediatory type auxiliary circulating equipment that department of cardiac surgery uses.
Heart disease is the higher a kind of disease of a kind of sickness rate that threatens the human life at present; the heart disease of various ways finally all will cause the depletion of heart of patient pumping function; heart can not be kept the required blood circulation amount of patient's normal activity effectively; make patient lose the ability of carrying out physical exertion; even influence patient's orthobiosis, develop into and seriously cause patient death.Impaired because of patient's cardiac muscle in the operation in clinical operation, cause some complication, it also is a big reason that causes patient death, treating the most effective way of these diseases is to adopt assist that heart is effectively had a rest, keep the myocardial blood perfusion simultaneously, in this process, cardiac muscle is progressively recovered.This device was studied over 50 years always, had multiple auxiliary device to come out, and clinical effectiveness is fine, and the axial-flow pump close with the principle of the invention is to be successfully applied to clinical the simplest a kind of mode over past ten years.But existing device does not structurally have basic breakthrough, complex structure, and system is loaded down with trivial details, and volume ratio is bigger, implants difficulty.Complex structure causes manufacture difficulty very big, and cost inevitably increases substantially, and causes price very high, has limited the use clinically of this device, with clinical urgent need formation contradiction.
The objective of the invention is to overcome the shortcoming of prior art, a kind of simple and reliable ventricle auxiliary circulating equipment is provided, the present invention has broken through the architectural feature of original auxiliary device, adopt the long-range transmitted power of magnetic drive unit, power section is placed in the external driving device, has simplified body greatly and be implanted into part.
Basic structural feature of the present invention is implanted into auxiliary device two parts by body outer driving device and body and forms.Body is implanted into part and is made up of pump, conduit and 3 members of intervention intubate again.
The basic function of body outer driving device is the rotating excitation field that produces sufficient intensity, and it comprises generation device of rotating magnetic field, energy part and physical signs acquisition processing device, and these devices are arranged on a little vest and the belt, and patient self can carry.Generation device of rotating magnetic field can be the high energy magnet rotation of certain size of a high-speed electric expreess locomotive band and volume, thereby produces rotating excitation field, and magnet poles is radially.Also can adopt the solenoid winding to produce rotating excitation field.Place the shirtfront over against body inner pump position driving device during use.
The pump that body is implanted into part is the main part that produces assosting effect, and it is made by the biocompatibility metal material, and its principle is identical with common axial-flow pump, and by pump case, impeller is formed, and in impeller hub, is embedded with the high energy magnet, its magnetic pole radial.
The impeller of this pump is rotated around central shaft by the exogenic rotating excitation field driving in source, the spring bearing form of impeller in pump case can have the central shaft shell type, the top formula of both-end, various ways such as both-end axle sleeve type, the impeller front end is lined with antifriction material, and antifriction material can be macromolecular materials such as polyformaldehyde, politef, also can be pottery, RESEARCH OF PYROCARBON etc.Central shaft is fixed on the deflection cone.One cage is arranged behind the pump case, be used for being connected with the intervention intubate.Can produce certain counteracting force during the impeller propelled blood flow, wearing and tearing for the parts that reduce to cause by this power, certain thickness antifriction material on pad between impeller front end and the deflection cone, the impeller mesopore also embeds antifriction material, constitutes the axle sleeve type bearing width of cloth with central shaft.The parameter of impeller (as the number of blade, lead angle, hub ratio etc.) has different parameters according to the size and the occupation mode of pump.The parts of pump all polish, and seam areas is all handled smoothly, anti-tampon calmness.The limb that the pump discharge place has a macromolecular material to make can not exclusively be closed when pump stops, but plays the anti-flow of control in the physiology tolerance range, improves safety.
Before run is connected pump, use the macromolecular material of good biocompatibility to make, effect be from ventricle to the pump drain, stride across arterial valve during implantation, catheter head adopts metal to make, so that observe during intervene operation.Be used for the auxiliary catheter head bevel of the left heart, be beneficial to pass through aortic valve.Be used for the auxiliary catheter head of the right heart and make cage, be used for connecting and get involved the intubate part, run is enclosed within on the pump case, and for the ease of inserting, conduit is made certain camber.
Getting involved intubate is to be used to be people Jie to perform the operation the insertion pump to the use location, and makes the localized part of pump after insertion puts in place.Adopt the macromolecular material pipe of good biocompatibility to make, support the stainless steel spring pipe at the part inside pipe wall, make intubate have certain deflection and good flexibility, center cavity can be used for inserting a seal wire in the intervention procedure, increases the intubate deflection.But cannula distal end has suture texture, has connected a shed repair sticking patch, is used for after finishing intervene operation, and the intubate afterbody is sewed up mutually with blood vessel wall and surrounding tissue, is embedded in subcutaneous.
Pump, conduit, form the auxiliary device that implants with 3 members of intervention intubate, left side heart auxiliary device is got involved intubate and is connected behind the pump on the cage, right ventricular assist device is got involved intubate and is connected on the catheter head cage, for the ease of by right atrium and right ventricle, on cage behind the pump, connect the seal wire of one section bending.
Said structure feature of the present invention makes it to have following advantage:
1, magnetic drive unit is placed on external, makes body be implanted into part and greatly simplify.Because power set do not enter in the body, to its volume, energy consumption, the requirement of weight has just been relaxed many, and need not to consider biocompatibility issues.System obtains simplifying, and has omitted the energy transdermal and has introduced an intravital cover complex appts, the not open wound of body surface.Place and externally also safeguard easily, reduce accident rate,, also be convenient to maintenance in case have an accident, this compared with the device safety that implants many.
2, chamber, present existing insertion type left side blood pump uses the flexible axle transferring power, and this loses free mobility after making patient implant this device, and flexible axle is also chopped off easily.The insertion point wound is in open state all the time, infects easily.Power of the present invention is without getting involved the intubate transmission, and postoperative is embedded in subcutaneous, and the wound sealing is avoided infection, and patient can be free movable.This point recovers very beneficial to patient's whole body organ.And can realize that the right heart that adopts the flexible axle transmission to be difficult to realize is auxiliary.
3, after pump of the present invention is delivered to arterial valve in operation, the size of pump and conduit is very short, can reduce the chance of blood like this with the contact of foreign body surface as far as possible, lower the thrombosis probability, reduce haemolysis, and the conduit weak point can reduce and prolong stroke pressure loss, reduces the energy consumption of pump, also can reduce the destruction to blood constituent.
4, adopt insertion type to implant mode, little to patient trauma, implantation and taking-up are all more convenient, and be favourable to patient.
5, householder method of the present invention be directly from ventricular pump blood to intra-arterial, this supplementary mode can effectively utilize heart residue function, effectively must reduce intraventricular pressure, increases circulating load, improves arterial pressure, reduces myocardium energy consumption.Because the conduit size is than little many of arterial valve, so arterial valve can normally open and close in the cardiac ejection process.Auxiliary quantity can be regulated according to the depleted degree difference of heart, what lacks what are mended.
Further describe technical solution of the present invention below in conjunction with accompanying drawing, wherein:
Fig. 1 is the sketch map of ventricle auxiliary circulating equipment of the present invention;
Fig. 2 is the sketch map of vest and belt.
Fig. 3 is the sketch map of pump.
Fig. 4 is for being used for left heart subsidiary conduit sketch map.
Fig. 5 is the sketch map that is used for right heart subsidiary conduit.
Fig. 6 is for getting involved the sketch map of intubate.
Referring to accompanying drawing, ventricle circulating device of the present invention is by body outer driving device 1, pump 2, conduit 3 and intervention intubate 4 are formed, wherein the basic structure of body outer driving device 1 is a high-speed electric expreess locomotive and high energy magnet 6 rotations that have certain volume and dimensional requirement with, thereby generation rotating excitation field, magnet 6 magnetic poles are radially, determining from 2 utmost points to the 2n utmost point of number of poles according to driving distance, driving device 1 comprises that also motor rotates control section 7, energy part 8 and these devices of physical signs acquisition processing device (not shown) are arranged on a little vest 9 and the belt 10, (see figure 2), patient self can carry, during use, this position of installing magnet over against body inner pump position, is placed the shirtfront.
Pump 2 (see figure 3)s are the main parts that produce assosting effect, are made by biocompatible materials, and its principle is identical with common axial-flow pump, and by pump case 11, impeller 12 is formed in the wheel hub of impeller 12, is embedded with high energy magnet 13, and its magnetic pole also is radially.
Airflow fence 14 and water conservancy diversion vertebra 15 are arranged before this impeller of pump, central shaft 16 is fixed on the water conservancy diversion vertebra 15, impeller 12 centers porose (not shown) make impeller 12 rotated around central shaft by external rotating excitation field driving, central shaft 16 is root cantilevered axle, welding one cage 17 on pump case 11 after-openings is used for being connected with the intervention intubate.When impeller 12 high speed rotating promote blood flow, can produce certain counteracting force, for reducing the wearing and tearing of the parts that this power causes, between impeller 12 front ends and water conservancy diversion vertebra 15, certain thickness antifriction material 18 on the pad, permission grinds off certain thickness material in the lifetime of pump, impeller 12 mesopores also embed antifriction material 18 and constitute the bearing width of cloth with central shaft.The parameter setting of impeller 12 (as the number of blade, lead angle, hub ratio etc.) has different parameters according to the size of pump is different with occupation mode.All polish at the position of pump, and seaming component is all handled smoothly, anti-tampon calmness.
Before conduit 3 is connected pump 2, use the macromolecular material of biocompatibility to make, effect be from ventricle to pump 2 drains, two stride across arterial valve during insertion.Because the pressure differential that this section conduit will bear tremulous pulse and ventricle, the therefore helical spring (not shown) that rolls at polymer pipe internal support stainless steel silk.The head of conduit adopts metal to make, so that observe during intervene operation.Be used for the auxiliary conduit 3 head bevels 20 of the left heart and be beneficial to pass through aortic valve.Be used for the auxiliary conduit 21 of the right heart, as shown in Figure 5, its head is made cage 22, is used for connecting getting involved the intubate part, and run is enclosed within on the pump case, and for the ease of inserting, conduit is made certain camber.
Getting involved intubate 4 (as shown in Figure 6) is to be used to do intervene operation to insert pump to the use location, and after putting in place, insertion makes the localized part of pump, adopt the good macromolecular material pipe 24 of biofacies sky to make, at pipe 24 inwalls supporting stainless steel spring pipe 25, make intubate have certain deflection and tool good flexibility.Center cavity can be used for injecting in the intervention procedure seal wire increases the intubate deflection.Intubate is not held and is connected a shed repair sticking patch 26, be used to finish behind the intervene operation intubate afterbody and blood vessel wall and surrounding tissue sewed up mutually be embedded in subcutaneous.
The method that produces rotating excitation field is diversified, and aforementioned employing high energy magnet rotation is most economical reliable and secure, simple a kind of method under the present technical conditions.Under the situation that technical specification can reach, adopt the solenoid winding to produce rotating excitation field and also can use.
Claims (5)
1, transplanted endarterial miniature auxiliary circulating device of ventricle, it is characterized in that it is implanted into auxiliary device by body outer driving device and body and forms, described body outer driving device comprises a high-speed electric expreess locomotive, it drives a high energy magnet and rotates, magnet poles is radial, and this driving device comprises that also motor rotates control section, energy part and physical signs acquisition processing device, driving device is arranged on the vest and belt of patient's wearing, and the position of magnet is at front cardiac position place; Body is implanted into auxiliary device and is made up of pump, conduit and intervention intubate, the pump that is positioned at the arterial valve place is that axial-flow pump is made up of pump case and impeller, the wheel hub of impeller is embedded with the high energy magnet, magnetic pole radial, airflow fence and water conservancy diversion vertebra are arranged before the impeller, and central shaft is fixed on the water conservancy diversion vertebra, and the impeller center is porose, one cage is arranged on the pump case after-opening, and this cage connects gets involved intubate; Before conduit is connected pump, this conduit strides across arterial valve when implanting, catheter head is the inclined-plane and enters ventricle to get involved intubate be to insert pump to the use location, and after putting in place, insertion makes the localized part of pump, get involved intubate and do not hold and connect a shed repair sticking patch, be used for after finishing operation this intubate afterbody and blood vessel wall and surrounding tissue sewed up mutually be embedded in subcutaneous; Described conduit and intervention intubate all adopt the macromolecular material of good biocompatibility to make, and pump is made by the material of good biocompatibility.
2, ventricle auxiliary circulating equipment according to claim 1 is characterized in that it is polyformaldehyde that described impeller front end has the antifriction material antifriction material, politef macromolecular material, or pottery, RESEARCH OF PYROCARBON material.
3, ventricle auxiliary circulating equipment according to claim 1 is characterized in that described pump is an axial-flow pump, and the supporting form of impeller in pump case can have the central shaft shell type, the top formula of both-end, or both-end axle sleeve type.
4, ventricle auxiliary circulating equipment according to claim 1 is characterized in that being used for the auxiliary catheter head of right ventricle and is the cage shape, and the one end connects the seal wire of one section bending.
5, ventricle auxiliary circulating equipment according to claim 1 is characterized in that the limb that described delivery side of pump has a macromolecular material to make, and its effect is not exclusively to close when termination of pumping, to limit certain regurgitation volume.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99126258 CN1254598A (en) | 1999-12-21 | 1999-12-21 | Transplanted endarterial miniature auxiliary circulating device of ventricle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99126258 CN1254598A (en) | 1999-12-21 | 1999-12-21 | Transplanted endarterial miniature auxiliary circulating device of ventricle |
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| Publication Number | Publication Date |
|---|---|
| CN1254598A true CN1254598A (en) | 2000-05-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99126258 Pending CN1254598A (en) | 1999-12-21 | 1999-12-21 | Transplanted endarterial miniature auxiliary circulating device of ventricle |
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| CN (1) | CN1254598A (en) |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102438674A (en) * | 2009-05-18 | 2012-05-02 | 卡迪奥布里奇有限公司 | Catheter pump |
| CN102930771A (en) * | 2012-11-16 | 2013-02-13 | 北京工业大学 | Cyclic presentation platform of aorta blood pump |
| CN106215261A (en) * | 2016-08-29 | 2016-12-14 | 安徽通灵仿生科技有限公司 | A kind of ventricle subsidiary conduit pump |
| CN109718408A (en) * | 2019-02-28 | 2019-05-07 | 赤峰市医院 | A kind of external ventricular assist device |
| US10722631B2 (en) | 2018-02-01 | 2020-07-28 | Shifamed Holdings, Llc | Intravascular blood pumps and methods of use and manufacture |
| CN113082508A (en) * | 2021-03-05 | 2021-07-09 | 田步升 | Implantable right heart auxiliary system |
| US11185677B2 (en) | 2017-06-07 | 2021-11-30 | Shifamed Holdings, Llc | Intravascular fluid movement devices, systems, and methods of use |
| US11368081B2 (en) | 2018-01-24 | 2022-06-21 | Kardion Gmbh | Magnetic coupling element with a magnetic bearing function |
| 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 |
| CN116421878A (en) * | 2023-06-13 | 2023-07-14 | 北京悦唯医疗科技有限责任公司 | Ventricular assist catheter |
| CN116421879A (en) * | 2023-06-13 | 2023-07-14 | 北京悦唯医疗科技有限责任公司 | Hydrodynamic catheter |
| US11724089B2 (en) | 2019-09-25 | 2023-08-15 | Shifamed Holdings, Llc | Intravascular blood pump systems and methods of use and control thereof |
| US11754075B2 (en) | 2018-07-10 | 2023-09-12 | Kardion Gmbh | Impeller for an implantable, vascular support system |
| US11944805B2 (en) | 2020-01-31 | 2024-04-02 | Kardion Gmbh | Pump for delivering a fluid and method of manufacturing a pump |
| US11964145B2 (en) | 2019-07-12 | 2024-04-23 | Shifamed Holdings, Llc | Intravascular blood pumps and methods of manufacture and use |
| US12005248B2 (en) | 2018-05-16 | 2024-06-11 | Kardion Gmbh | Rotor bearing system |
| US12064615B2 (en) | 2018-05-30 | 2024-08-20 | Kardion Gmbh | Axial-flow pump for a ventricular assist device and method for producing an axial-flow pump for a ventricular assist device |
| US12076549B2 (en) | 2018-07-20 | 2024-09-03 | Kardion Gmbh | Feed line for a pump unit of a cardiac assistance system, cardiac assistance system and method for producing a feed line for a pump unit of a cardiac assistance system |
-
1999
- 1999-12-21 CN CN 99126258 patent/CN1254598A/en active Pending
Cited By (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102438674A (en) * | 2009-05-18 | 2012-05-02 | 卡迪奥布里奇有限公司 | Catheter pump |
| CN102438674B (en) * | 2009-05-18 | 2014-11-05 | 卡迪奥布里奇有限公司 | Catheter pump |
| CN102930771A (en) * | 2012-11-16 | 2013-02-13 | 北京工业大学 | Cyclic presentation platform of aorta blood pump |
| CN106215261A (en) * | 2016-08-29 | 2016-12-14 | 安徽通灵仿生科技有限公司 | A kind of ventricle subsidiary conduit pump |
| US11717670B2 (en) | 2017-06-07 | 2023-08-08 | Shifamed Holdings, LLP | Intravascular fluid movement devices, systems, and methods of use |
| 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 |
| US11368081B2 (en) | 2018-01-24 | 2022-06-21 | Kardion Gmbh | Magnetic coupling element with a magnetic bearing function |
| US11804767B2 (en) | 2018-01-24 | 2023-10-31 | Kardion Gmbh | Magnetic coupling element with a magnetic bearing function |
| US10722631B2 (en) | 2018-02-01 | 2020-07-28 | Shifamed Holdings, Llc | Intravascular blood pumps and methods of use and manufacture |
| US12076545B2 (en) | 2018-02-01 | 2024-09-03 | 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 |
| US12005248B2 (en) | 2018-05-16 | 2024-06-11 | Kardion Gmbh | Rotor bearing system |
| US12064615B2 (en) | 2018-05-30 | 2024-08-20 | Kardion Gmbh | Axial-flow pump for a ventricular assist device and method for producing an axial-flow pump for a ventricular assist device |
| US11754075B2 (en) | 2018-07-10 | 2023-09-12 | Kardion Gmbh | Impeller for an implantable, vascular support system |
| US12076549B2 (en) | 2018-07-20 | 2024-09-03 | Kardion Gmbh | Feed line for a pump unit of a cardiac assistance system, cardiac assistance system and method for producing a feed line for a pump unit of a cardiac assistance system |
| CN109718408B (en) * | 2019-02-28 | 2021-05-07 | 赤峰市医院 | External ventricular assist device |
| CN109718408A (en) * | 2019-02-28 | 2019-05-07 | 赤峰市医院 | A kind of external ventricular assist device |
| US11964145B2 (en) | 2019-07-12 | 2024-04-23 | Shifamed Holdings, Llc | Intravascular blood pumps and methods of manufacture and use |
| US11654275B2 (en) | 2019-07-22 | 2023-05-23 | Shifamed Holdings, Llc | Intravascular blood pumps with struts and methods of use and manufacture |
| US11724089B2 (en) | 2019-09-25 | 2023-08-15 | Shifamed Holdings, Llc | Intravascular blood pump systems and methods of use and control thereof |
| US11944805B2 (en) | 2020-01-31 | 2024-04-02 | Kardion Gmbh | Pump for delivering a fluid and method of manufacturing a pump |
| CN113082508A (en) * | 2021-03-05 | 2021-07-09 | 田步升 | Implantable right heart auxiliary system |
| CN116421879A (en) * | 2023-06-13 | 2023-07-14 | 北京悦唯医疗科技有限责任公司 | Hydrodynamic catheter |
| CN116421878A (en) * | 2023-06-13 | 2023-07-14 | 北京悦唯医疗科技有限责任公司 | Ventricular assist catheter |
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