CN103933625A - Artificial heart pump fixing ring rapid to use - Google Patents

Artificial heart pump fixing ring rapid to use Download PDF

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Publication number
CN103933625A
CN103933625A CN201410108312.4A CN201410108312A CN103933625A CN 103933625 A CN103933625 A CN 103933625A CN 201410108312 A CN201410108312 A CN 201410108312A CN 103933625 A CN103933625 A CN 103933625A
Authority
CN
China
Prior art keywords
ring
artificial heart
gear
heart pump
fixing
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.)
Granted
Application number
CN201410108312.4A
Other languages
Chinese (zh)
Other versions
CN103933625B (en
Inventor
常宇
王得水
高斌
曾毅
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing University of Technology
Original Assignee
Beijing University of Technology
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Beijing University of Technology filed Critical Beijing University of Technology
Priority to CN201410108312.4A priority Critical patent/CN103933625B/en
Publication of CN103933625A publication Critical patent/CN103933625A/en
Application granted granted Critical
Publication of CN103933625B publication Critical patent/CN103933625B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • A61M60/122—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body
    • A61M60/126—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body implantable via, into, inside, in line, branching on, or around a blood vessel
    • A61M60/148—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body implantable via, into, inside, in line, branching on, or around a blood vessel in line with a blood vessel using resection or like techniques, e.g. permanent endovascular heart assist devices
    • 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
    • A61M60/126—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body implantable via, into, inside, in line, branching on, or around a blood vessel
    • A61M60/135—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body implantable via, into, inside, in line, branching on, or around a blood vessel inside a blood vessel, e.g. using grafting

Landscapes

  • Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Cardiology (AREA)
  • Hematology (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Transplantation (AREA)
  • External Artificial Organs (AREA)
  • Prostheses (AREA)

Abstract

The invention discloses an artificial heart pump fixing ring rapid to use and belongs to the field of artificial hearts. The artificial heart pump fixing ring is particularly used for an axial-flow type artificial heart pump and composed of a gear ring and a lock ring, wherein the gear ring and the lock ring are combined into a circular ring. The gear ring is a semi-circular ring. Circular-arc-shaped gear racks are arranged at the two ends of the semi-circular ring respectively and continue to extend out along the circular arc. The gear racks are provided with saw teeth, the front parts of the saw teeth are gentle slopes, and the rear parts of the saw teeth are abrupt slopes. The lock ring is a semi-circular ring, a cavity where the gear racks can be inserted is formed inside the lock ring, and a gear groove is formed in the wall of the cavity and matched with the saw teeth. Blood vessel protection bands are arranged on the inner side arc surface of the gear ring and the inner side arc surface of the lock ring in a laying mode and made of flexible materials. The gear ring and the lock ring are made of flexible biological compatibility materials. The fixing ring can be used for rapidly fixing the artificial heart in an operation, so that the time needed for fixing the artificial heart through suturing in a traditional implanting operation is saved, operation time is shortened, and risks in the operation are reduced. Meanwhile, the fixing ring is safe to use effectively, and blood vessel injury caused by line tying, or suturing or other fixing modes can be avoided.

Description

Rapid artificial heart pump retainer ring
Technical field
The invention belongs to artificial heart field, specially refer to retainer ring and the installation method thereof of artificial heart pump in artificial heart pump's implant surgery.
Background technology
Heart failure (heart failure) is a kind of disease of serious threat human health.Be that heart transplantation and artificial heart are auxiliary for the most effective Therapeutic Method of advanced heart failure, because heart transplantation can not meet the needs that heart failure is treated far away, market constantly increases artificial heart pump's demand, thereby its market prospect is very good.Use artificial heart pump, first need to carry out artificial heart pump's implant surgery.Implanting in complete process, artificial heart pump need to be fixed on to aorta vessel inside, traditional method is after artificial heart pump implants, and adopts the mode of stitching or anchor line (string) that artificial heart pump is fixed, and prevents that artificial heart pump is in endaortic motion.On the one hand, the fixed form of stitching or anchor line (string) has spent the more time, and in sewing process, operate miss is easy to occur; On the other hand, stitching thread is too thin, and in using for a long time, it may cut bad blood vessel, thereby has influence on patient health.
Retainer ring is widely used for domestic and international industry-by-industry.Patent CN203081925U has designed straight dress divergence type retainer ring, and retainer ring is separable, is applicable to the fixing of machine-building axis, and this invention is metal material, and retainer ring directly contacts with fixation, is fixed by bolt; Patent CN203081930U has designed straight dress open-type retainer ring, is applicable to the fixing of machine-building axis, and this invention is metal material, and retainer ring directly contacts with fixation, is fixed by bolt, and retainer ring is non-divergence type design; Patent CN202637214U has designed the retainer ring fixing for the finger after fracturing, and this invention is fixing for external finger, and retainer ring is non-divergence type design, is fixed by encircling outer puller strap; Patent CN203001098U has designed the anti-dislocation angle of anterior plate fixation screw retainer ring, is applicable to orthopaedics surgical operation, and retainer ring is non-divergence type design, and retainer ring directly contacts with fixation; Mode by bolt is fixed.The fixing of artificial heart pump has more stricter requirements by contrast: retainer ring can not be to the interference in magnetic field; Retainer ring directly contacts with aorta, has high biocompatibility requirement; Retainer ring protection blood vessel is not pushed by hard ring body; Retainer ring will be installed and used quickly and easily, avoids the operation of complicated and time consumption; Retainer ring will be guaranteed can not have space between blood vessel and artificial heart pump after using; Reduce the space hold of retainer ring in thoracic cavity as far as possible.These problems are to solve above, and current existing design can not realize.
Summary of the invention
In order to improve the technology that existing artificial heart pump is fixing, the invention provides one artificial heart pump's retainer ring and using method thereof fast:
A kind of rapid artificial heart pump retainer ring, becomes the ring gear of annulus and lock ring to form by zoarium, and described ring gear is semicircular ring, and semicircular ring two ends have respectively and continue the arc-shaped rack that stretches out along circular arc, and this tooth bar is sawtooth, before this sawtooth, is gentle slope, is abrupt slope afterwards; Described lock ring is semicircular ring, and it is inner for inserting the cavity of described tooth bar, and cavity wall is provided with the teeth groove coordinating with described sawtooth; Be laid with in the inner side of described ring gear and lock ring cambered surface the vascular protection band that flexible material forms; Described ring gear and lock ring all adopt flexible biological compatibility material to make.When use, artificial heart pump is placed in blood vessel, the lock ring of semicircular ring is buckled on the blood vessel of artificial heart pump's head, again the ring gear of semicircular ring is buckled on second half of blood vessel, two toothed rack are inserted the cavity of lock ring simultaneously, until two semicircles are merged into a circle, then to adopt to use the same method at artificial heart afterbody blood vessel place and be fixed, artificial heart pump and blood vessel fixedly complete.
The structure of utilizing a kind of rapid artificial heart pump retainer ring of the present invention to adopt ring gear and lock ring to interlock, in artificial heart pump's implant surgery, artificial heart pump is placed in the blood vessel of ascending aorta, two groups of ring gears and lock ring are buckled in respectively to blood vessel outside, artificial heart pump two ends place mutually, have fixed fast artificial heart pump.These apparatus and method have shortened artificial heart pump's set time widely, have reduced operation risk; In addition compare stitching thread, retainer ring can increase the active area to blood vessel wall, has reduced pressure, has protected blood vessel not hurt; The vascular protection band of retainer ring inner side can be protected blood vessel on the one hand; on the other hand; when retainer ring extruding vascular protection band; flexible material deformation and be full of retainer ring and blood vessel between space; active force acts on blood vessel more equably; make retainer ring fix better artificial heart pump, eliminate the space that may exist between pump and blood vessel.Finally, the non-metallic material of retainer ring, has got rid of the interference that may cause magnetic field in variation magnetic field.
Brief description of the drawings
Fig. 1 is the structural representation of the preferred embodiment of the rapid artificial heart pump retainer ring of the present invention.
Fig. 2 is the structural representation of the ring gear in rapid artificial heart pump retainer ring embodiment illustrated in fig. 1.
Fig. 3 is the profile of the lock ring in rapid artificial heart pump retainer ring embodiment illustrated in fig. 1.
Fig. 4 is that rapid artificial heart pump retainer ring of the present invention is for the fixing mode of artificial heart pump.
Fig. 5 is the artificial heart pump's of the rapid artificial heart pump retainer ring of the present invention aorta implantation.
In figure: 1, artificial heart pump's retainer ring, 2, ring gear, 3, lock ring, 4, tooth bar, 5, cavity, 6, teeth groove, 7, vascular protection band, 8, blood vessel, 9, artificial heart pump, 10, ascending aorta, 11, left ventricle.
Detailed description of the invention
Below in conjunction with accompanying drawing, of the present invention and using method are described in further details.
One is artificial heart pump's retainer ring fast, and main body is ring gear 2 and lock ring 3, adopts nonmetal biocompatible materials, and ring gear 2 and lock ring 3, according to practical situation design different size, mainly comprise Φ 22, Φ 24, Φ 26(mm) etc. different inner diameters; Wherein there is respectively the tooth bar 4 stretching out at ring gear 2 two ends places, tooth in tooth bar 4 is front slow rear steep sawtooth, and lock ring 3 inside are cavity 5, and cavity 5 inwalls have teeth groove 6, teeth groove 6 can fit like a glove with tooth bar 4, and tooth bar 4 and teeth groove 6 also adopt nonmetal biocompatible materials; Ring gear 2 and lock ring 3 inner sides are covered and are formed vascular protection band 7 by flexible non-metallic biocompatible materials, as medical grade silicon rubber, to tissue nonirritant, avirulence, few without anaphylaxis, body rejection; Having good physicochemical property, with body fluid and organize in contact process and can keep its original elasticity and pliability, be not degraded, is a kind of material of quite stable.
On operation is implemented, first cut off an otch at ascending aorta 10 places, and vise incision blood flow with mosquito forceps, artificial heart pump 9 is inserted to aorta vessel inside, and correct (artificial heart pump's afterbody points to aortic valve direction) of guaranteeing pump placing direction, sew up afterwards aorta otch.At artificial heart pump's head blood vessel place, choose artificial heart pump's retainer ring 1 of suitable dimension, lock ring 3 is buckled on blood vessel 8, again ring gear 2 is buckled in to the plane of symmetry position of this place with respect to blood vessel, two tooth bars 4 are inserted to cavity 5 simultaneously, promote the extremely deep-seated of this annulus tooth bar and put, two semicircular ring merge, complete the fixing of artificial heart head, then adopted to use the same method at artificial heart afterbody blood vessel place and be fixed.Artificial heart pump fixedly completes.
In artificial heart pump's implant surgery, pump need to be implanted in aorta, thereby the mode of formation and aorta series connection, by self rotating extraction ventricle inner blood, in conjunction with idioventricular contraction, improves the function of left ventricle pump blood.

Claims (1)

1. a rapid artificial heart pump retainer ring, becomes the ring gear of annulus and lock ring to form by zoarium, it is characterized in that: described ring gear is semicircular ring, and the arc-shaped rack that semicircular ring two ends have respectively continuation to stretch out along circular arc, this tooth bar is sawtooth, before this sawtooth, is gentle slope, is abrupt slope afterwards; Described lock ring is semicircular ring, and it is inner for inserting the cavity of described tooth bar, and cavity wall is provided with the teeth groove coordinating with described sawtooth; Be laid with in the inner side of described ring gear and lock ring cambered surface the vascular protection band that flexible material forms; Described ring gear and lock ring all adopt flexible biological compatibility material to make.
CN201410108312.4A 2014-03-21 2014-03-21 Rapid artificial heart pump retainer ring Expired - Fee Related CN103933625B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410108312.4A CN103933625B (en) 2014-03-21 2014-03-21 Rapid artificial heart pump retainer ring

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410108312.4A CN103933625B (en) 2014-03-21 2014-03-21 Rapid artificial heart pump retainer ring

Publications (2)

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CN103933625A true CN103933625A (en) 2014-07-23
CN103933625B CN103933625B (en) 2016-05-18

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410108312.4A Expired - Fee Related CN103933625B (en) 2014-03-21 2014-03-21 Rapid artificial heart pump retainer ring

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110812553A (en) * 2019-11-07 2020-02-21 武汉唯柯医疗科技有限公司 Implanted mechanical circulation auxiliary device in aorta

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020095210A1 (en) * 2001-01-16 2002-07-18 Finnegan Michael T. Heart pump graft connector and system
US20040024285A1 (en) * 2002-06-21 2004-02-05 Helmut Muckter Blood pump with impeller
WO2007054015A1 (en) * 2005-11-09 2007-05-18 Ning Wen An artificial heart valve stent and weaving method thereof
CN202207380U (en) * 2011-07-29 2012-05-02 冯大鹏 Tracheal cannula fixer
CN103533970A (en) * 2011-05-13 2014-01-22 海德威公司 Intravascular blood pump and method of implantation
CN103637765A (en) * 2013-12-30 2014-03-19 宁波市鄞州青林医疗器械技术咨询有限公司 Zygomatic chin expansion angle type opening device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020095210A1 (en) * 2001-01-16 2002-07-18 Finnegan Michael T. Heart pump graft connector and system
US20040024285A1 (en) * 2002-06-21 2004-02-05 Helmut Muckter Blood pump with impeller
WO2007054015A1 (en) * 2005-11-09 2007-05-18 Ning Wen An artificial heart valve stent and weaving method thereof
CN103533970A (en) * 2011-05-13 2014-01-22 海德威公司 Intravascular blood pump and method of implantation
CN202207380U (en) * 2011-07-29 2012-05-02 冯大鹏 Tracheal cannula fixer
CN103637765A (en) * 2013-12-30 2014-03-19 宁波市鄞州青林医疗器械技术咨询有限公司 Zygomatic chin expansion angle type opening device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110812553A (en) * 2019-11-07 2020-02-21 武汉唯柯医疗科技有限公司 Implanted mechanical circulation auxiliary device in aorta

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Granted publication date: 20160518

Termination date: 20200321