CN109227468A - A kind of device for leading component for dismantling axial-flow type heart chamber auxiliary pump tail - Google Patents
A kind of device for leading component for dismantling axial-flow type heart chamber auxiliary pump tail Download PDFInfo
- Publication number
- CN109227468A CN109227468A CN201811381997.4A CN201811381997A CN109227468A CN 109227468 A CN109227468 A CN 109227468A CN 201811381997 A CN201811381997 A CN 201811381997A CN 109227468 A CN109227468 A CN 109227468A
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- China
- Prior art keywords
- support
- hole
- auxiliary pump
- ejector rod
- base
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
- B25B27/023—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same using screws
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- External Artificial Organs (AREA)
Abstract
一种用于拆卸轴流式心室辅助泵尾导部件的装置，包括底座及设于该底座上的顶出机构和固定机构；该顶出机构包括第一支座和第二支座；该第一支座的螺孔内穿设有前顶出杆，该前顶出杆内端设有连接部；该第二支座包括滑槽，该滑槽的内壁设有燕尾槽；该滑槽两端下方分别设有倒U型的支腿，该滑槽内设有滑块，该滑块的侧臂位于燕尾槽内；该滑块一侧设有圆孔，该连接部位于该圆孔内，另一侧设有后顶出杆；该固定机构包括第三支座，该第二支座和第三支座之间设有上固定板和下固定板；该第一支座、该第二支座与该第三支座的两侧顶面分别通过一个横梁固定连接；该后顶出杆末端能依次穿过上固定板和下固定板之间的固定部和第三支座的通孔。
A device for disassembling a tail guide part of an axial flow ventricular auxiliary pump, comprising a base, an ejection mechanism and a fixing mechanism arranged on the base; the ejection mechanism includes a first support and a second support; the first support A front ejector rod is penetrated in the screw hole of a seat, and the inner end of the front ejector rod is provided with a connecting part; the second seat includes a chute, and the inner wall of the chute is provided with a dovetail groove; There are respectively inverted U-shaped legs below the ends, a slider is arranged in the chute, and the side arm of the slider is located in the dovetail slot; one side of the slider is provided with a circular hole, and the connecting part is located in the circular hole , the other side is provided with a rear ejector rod; the fixing mechanism includes a third support, an upper fixing plate and a lower fixing plate are arranged between the second support and the third support; the first support, the first support The top surfaces on both sides of the second support and the third support are fixedly connected through a beam respectively; hole.
Description
Technical field
The invention belongs to the field of medical instrument technology, and in particular to one kind leads portion for dismantling axial-flow type heart chamber auxiliary pump tail
The device of part.
Background technique
Under the background for lacking heart transplant donors, the main method using installation heart chamber auxiliary pump extends in the world at present
The life of patients with heart failure, domestic heart chamber auxiliary pump will also form product.It is divided into axis stream using wide heart chamber auxiliary pump
Formula heart chamber auxiliary pump and centrifugal heart chamber auxiliary pump, the blood-pumping function of accessory heart in such a way that blood continuously flows maintain the heart
Decline the blood circulation of human body of patient.It is most that the characteristics of axial-flow type heart chamber auxiliary pump is small in size with its, easy implantation becomes application at present
Blood pump, foreign countries have up to ten thousand serious heart failure patients in the past few years in by install axial-flow type heart chamber auxiliary pump extend life
Life.
Traditionally, the pump housing of mechanical shaft type axis stream heart chamber auxiliary pump includes leading, fore bearing, impeller of rotor, axis, permanent magnetism
Body, rear bearing, tail lead, casing, coil and shell.The leading adjusting blood pump of this heart chamber auxiliary pump becomes a mandarin, impeller of rotor pair
Blood acting, tail, which is led, acts to improve pressure, rectification, and leading and tail, which is led, to be typically installed on by the way of interference fit
Casing inner wall.Heart chamber auxiliary pump after completing zoopery or clinical Implantation Test will be split unlock and pumped with observation analysis in
Situations such as thrombosis, abrasion, blade leading in general is all shorter, is by the simple tool such as tweezers, haemostatic clamp
Achievable disassembly, and the blade that tail is led is generally longer, big with casing inner wall contact area, coordinate force is big, can not be by simple
Tool completes the disassembly that tail is led.
It is counted according to zoopery and clinical test results, axis and bearing junction are mechanical shaft type axis stream heart chamber auxiliary pumps
The high-incidence position of interior thrombus is one of the position of thrombosis problem most serious in axis stream heart chamber auxiliary pump runner, is axial-flow type
Most important look-out station after heart chamber auxiliary pump dismantling, so to reduce the machine to the position to the greatest extent when disassembling heart chamber auxiliary pump
Tool destroys.Therefore, it is badly in need of a kind of provision for disengagement at present, is led with the complex blade tail of the mechanical shaft type axis stream heart chamber auxiliary pump of solution
Non-destructive dismantles problem, while overcoming and being prone to wear tail in disassembly process and lead and the defect of thrombus thereon.
Summary of the invention
In view of the above problems, component is led for dismantling axial-flow type heart chamber auxiliary pump tail the object of the present invention is to provide a kind of
Device, may be implemented not destroy in the smooth disassembly, disassembly process that mechanical shaft type axis stream heart chamber auxiliary pump tail leads tail lead and its
The purpose of upper thrombus.
To achieve the above object, the present invention takes following technical scheme:
A kind of device for leading component for dismantling axial-flow type heart chamber auxiliary pump tail, the top including pedestal and on the pedestal
Mechanism and fixed mechanism out；
The ejecting mechanism includes the first support and the second support being sequentially arranged on the pedestal；First support is in " convex " word
Type, both ends are fixed by screws on the pedestal, and middle part is equipped with screw hole；Threaded preceding knock-pin is equipped in the screw hole, it should
Preceding knock-pin outer end is equipped with handwheel, and inner end is equipped with the interconnecting piece of cylindrical type；Second support includes the U-shaped cunning in section
Slot, the opposite inner wall of the sliding slot are equipped with the dovetail groove being recessed inwardly；Sliding block is equipped in the sliding slot, which has cuboid-type
Ontology, which is equipped with side arm corresponding with the dovetail groove, which is located in corresponding dovetail groove, enables the sliding block
It is slided along the sliding slot；The sliding block is equipped with circular hole towards the side of first support, the connecting portion in the circular hole, the sliding block
The other side is equipped with rear knock-pin；The sliding slot both ends are respectively arranged below with the supporting leg of inverted U, and two supporting legs are fixed by screws in this
On pedestal；
The fixed mechanism includes the third support on the pedestal, which is in " convex " font, and both ends pass through spiral shell
Nail is fixed on the base, and middle part is equipped with through-hole；Distinguish the two sides top surface of first support, second support and the third support
It is fixedly connected by a crossbeam；Upper mounted plate and bottom plate, the upper mounted plate and bottom plate are equipped between two crossbeams
Between second support and third support；Protuberance forms semicircular lug boss upwards in the middle part of the upper mounted plate, this is lower solid
The middle part of fixed board is recessed forms semicircular recessed portion downwards, and the lug boss and recessed portion are oppositely arranged to form circular fixation
Portion；The rear knock-pin end can sequentially pass through the fixed part and the through-hole.
Further, the axis of the screw hole, interconnecting piece, circular hole, fixed part and through-hole is overlapped.
Further, the preceding knock-pin outer end is equipped with the switching part of cylindrical type, which is equipped with and the preceding knock-pin
The parallel fin of axis；Connecting hole is equipped in the middle part of the handwheel, which is equipped with keyway corresponding with the fin.
Further, the rear knock-pin includes large diameter portion and small diameter portion, passes through the varying diameter portion of tapered diameter therebetween
Connection, the large-diameter portion are fixedly connected with the sliding block, and the diameter of the small diameter portion is less than the internal diameter of the through-hole.
It, can be with the beneficial effects of the present invention are: the present invention is for dismantling the device that axial-flow type heart chamber auxiliary pump tail leads component
The thrombus that tail leads upper formation will not be destroyed while the tail for dismantling axial-flow type heart chamber auxiliary pump leads component.The present invention passes through fixation
Axial-flow type heart chamber auxiliary pump is fixed by mechanism, pushes tail to lead axial movement by ejecting mechanism, and tail is led and is axially ejected along casing
Casing inner wall, two sections of knock-pins that ejecting mechanism mainly rotates between each other only have axial fortune with the knock-pin that tail connects touching
It is dynamic, it does not rotate, the thrombus led with tail can be led to avoid tail is worn in disassembly process, in order to avoid be disassembled in heart chamber auxiliary pump
Phenomenon is untrue in the pump observed after pump.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that the present invention leads the device of component for dismantling axial-flow type heart chamber auxiliary pump tail.
Fig. 2 is the structural schematic diagram for the pedestal that the present invention is used to dismantle the device that axial-flow type heart chamber auxiliary pump tail leads component.
Fig. 3 is the structural representation for the first support that the present invention is used to dismantle the device that axial-flow type heart chamber auxiliary pump tail leads component
Figure.
Fig. 4 is the structural representation for the second support that the present invention is used to dismantle the device that axial-flow type heart chamber auxiliary pump tail leads component
Figure.
Fig. 5 is the structural representation for the preceding knock-pin that the present invention is used to dismantle the device that axial-flow type heart chamber auxiliary pump tail leads component
Figure.
Fig. 6 is the structural representation for the rear knock-pin that the present invention is used to dismantle the device that axial-flow type heart chamber auxiliary pump tail leads component
Figure.
Fig. 7 is the structural representation for the third support that the present invention is used to dismantle the device that axial-flow type heart chamber auxiliary pump tail leads component
Figure.
Fig. 8 is the structural schematic diagram for the crossbeam that the present invention is used to dismantle the device that axial-flow type heart chamber auxiliary pump tail leads component.
Fig. 9 is the structural representation for the upper mounted plate that the present invention is used to dismantle the device that axial-flow type heart chamber auxiliary pump tail leads component
Figure.
Figure 10 is that the structure for the bottom plate that the present invention is used to dismantle the device that axial-flow type heart chamber auxiliary pump tail leads component is shown
It is intended to.
Figure 11 is the structural schematic diagram for the handwheel that the present invention is used to dismantle the device that axial-flow type heart chamber auxiliary pump tail leads component.
Specific embodiment
The possible form of implementation of the present invention is only illustrated with embodiment below, however is not intended to limit the invention claimed
Scope.
As shown in Figure 1, the present invention provides a kind of device for leading component for dismantling axial-flow type heart chamber auxiliary pump tail, including bottom
Seat 1 and ejecting mechanism 2 and fixed mechanism 3 on the pedestal 1.
As shown in figures 1 to 6, which includes the first support 21 and the second support 22 being sequentially arranged on the pedestal 1.
First support 21 is in " convex " font, and both ends are fixed by screws on the pedestal 1, and middle part is equipped with screw hole 211.The screw hole 211
It is inside equipped with threaded preceding knock-pin 23, which is equipped with handwheel 231, and inner end is equipped with the interconnecting piece of cylindrical type
232.Second support 22 includes the U-shaped sliding slot 221 in a section, and the opposite inner wall of the sliding slot 221, which is equipped with, to be recessed inwardly
Dovetail groove 222.Sliding block 24 is equipped in the sliding slot 221, which has the ontology 241 of cuboid-type, 241 two sides of ontology
Equipped with side arm 242 corresponding with the dovetail groove 222, which is located in corresponding dovetail groove 222, enables 24 edge of sliding block
The sliding slot 221 sliding.The sliding block 24 is equipped with circular hole 243 towards the side of first support 21, which is located at the circular hole
In 243, the other side of the sliding block 24 is equipped with rear knock-pin 25.221 both ends of sliding slot are respectively arranged below with the supporting leg 223 of inverted U,
Two supporting legs 223 are fixed by screws on the pedestal 1.
As shown in Fig. 1, Fig. 7-Figure 10, which includes the third support 31 on the pedestal 1, the third branch
Seat 31 is in " convex " font, and both ends are fixed by screws on the pedestal 1, and middle part is equipped with through-hole 32.First support 21, this second
Support 22 passes through a crossbeam 4 with the two sides top surface of the third support 31 respectively and is fixedly connected.It is equipped between two crossbeams 4 upper solid
Fixed board 41 and bottom plate 42, the upper mounted plate 41 and bottom plate 42 are located between second support 22 and third support 31.
Protuberance forms semicircular lug boss 411 upwards at 41 middle part of upper mounted plate, and the middle part of the bottom plate 42 is recessed to be formed downwards
Semicircular recessed portion 421, the lug boss 411 and recessed portion 421 are oppositely arranged to form circular fixed part 43.The rear knock-pin
25 ends can sequentially pass through the fixed part and the through-hole 32.Preferably, the screw hole 211, interconnecting piece 232, circular hole 242, fixed part
43 and through-hole 32 axis be overlapped.
Specifically, as shown in figure 5, preceding 23 outer end of knock-pin of the invention is equipped with the switching part 233 of cylindrical type, this turn
Socket part 233 is equipped with the fin 234 parallel with preceding 23 axis of knock-pin.As shown in figure 11, connecting hole is equipped in the middle part of the handwheel 231
235, which is equipped with keyway 236 corresponding with the fin 234.As shown in fig. 6, the rear knock-pin 25 includes big
Diameter portion 251 and small diameter portion 252 are connected by the varying diameter portion 253 of tapered diameter therebetween, the large-diameter portion 251 and the sliding block 24
It is fixedly connected, the diameter of the small diameter portion 253 is less than the internal diameter of the through-hole 32.
As shown in Figure 1, the present invention, using the pump housing outer surface of heart chamber auxiliary pump 5 as clamping stationary plane, ejecting mechanism acts on
In the wheel hub that tail is led, tail is led by the wheel hub endface position for pushing tail to lead and is axially ejected along heart chamber auxiliary pump casing inner wall, hand
Wheel rotation passes to two-part knock-pin by screw thread and bond structure, and the oat tail groove structure of rear knock-pin limits rear knock-pin
Rotation, rear knock-pin is only axially moved and itself is not rotated, and knock-pin rear in this way and tail guide wheel hub end face are opposing stationary
, rear knock-pin only leads a forward motive force to tail, can revolve to avoid existing between rear knock-pin and tail guide wheel hub end face
Worn away in disassembly process caused by transhipment is dynamic tail lead and thereon thrombus the case where appearance.The present invention can be used for demountor
The tail of tool shaft type axis stream heart chamber auxiliary pump leads component, can lead component and thrombus thereon to avoid tail is damaged in disassembly process.
The present invention is defined by the claim.But it is based on this, those skilled in the art can do
Various obvious variations or change out, all should be within main spirits and protection scope of the invention.
Claims (4)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811381997.4A CN109227468B (en) | 2018-11-20 | 2018-11-20 | A device for disassembling the tail guide component of an axial flow ventricular assist pump |
| PCT/CN2019/096754 WO2020103478A1 (en) | 2018-11-20 | 2019-07-19 | Device for detaching axial-flow ventricular auxiliary pump tail guide component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811381997.4A CN109227468B (en) | 2018-11-20 | 2018-11-20 | A device for disassembling the tail guide component of an axial flow ventricular assist pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109227468A true CN109227468A (en) | 2019-01-18 |
| CN109227468B CN109227468B (en) | 2023-12-05 |
Family
ID=65075138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811381997.4A Active CN109227468B (en) | 2018-11-20 | 2018-11-20 | A device for disassembling the tail guide component of an axial flow ventricular assist pump |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109227468B (en) |
| WO (1) | WO2020103478A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110480569A (en) * | 2019-08-23 | 2019-11-22 | 李花 | A kind of rotor of cam rotor pump stripping attachment |
| WO2020103478A1 (en) * | 2018-11-20 | 2020-05-28 | 中国医学科学院阜外医院 | Device for detaching axial-flow ventricular auxiliary pump tail guide component |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112692778A (en) * | 2020-11-30 | 2021-04-23 | 沪东重机有限公司 | Disassembling tool for top buffer piston of hydraulic piston |
| TWI789152B (en) * | 2021-12-09 | 2023-01-01 | 立晏企業有限公司 | Removal and installation tool |
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| US1377469A (en) * | 1920-04-05 | 1921-05-10 | Erickson Theodore | Press |
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| CN107116506B (en) * | 2017-05-25 | 2020-03-17 | 上汽通用五菱汽车股份有限公司 | Disassembling tool for disassembling main shaft |
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| CN109227468B (en) * | 2018-11-20 | 2023-12-05 | 中国医学科学院阜外医院 | A device for disassembling the tail guide component of an axial flow ventricular assist pump |
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2018
- 2018-11-20 CN CN201811381997.4A patent/CN109227468B/en active Active
-
2019
- 2019-07-19 WO PCT/CN2019/096754 patent/WO2020103478A1/en active Application Filing
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| GB552840A (en) * | 1942-04-15 | 1943-04-27 | Horace Stanley Frederick Denfo | Improvements in or relating to dial indicator stands |
| CN102049461A (en) * | 2010-10-15 | 2011-05-11 | 中北大学 | Multidirectional numerical control hydraulic press for metal plasticity forming |
| CN103217347A (en) * | 2013-04-17 | 2013-07-24 | 河南理工大学 | Ultrasonic vibration three-point bending test device suitable for observing crisp and hard material on line |
| CN104100305A (en) * | 2014-07-22 | 2014-10-15 | 哈尔滨工程大学 | Large meridional expansion variable-geometry turbine with orthogonal adjustable stator blades |
| CN204896924U (en) * | 2015-07-21 | 2015-12-23 | 宝山钢铁股份有限公司 | Roller is online adjusting device of perpendicularity |
| CN105709286A (en) * | 2016-01-18 | 2016-06-29 | 暨南大学 | Stepless regulating device matched with biventricular in vitro assist circulation blood pump room in use |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020103478A1 (en) * | 2018-11-20 | 2020-05-28 | 中国医学科学院阜外医院 | Device for detaching axial-flow ventricular auxiliary pump tail guide component |
| CN110480569A (en) * | 2019-08-23 | 2019-11-22 | 李花 | A kind of rotor of cam rotor pump stripping attachment |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020103478A1 (en) | 2020-05-28 |
| CN109227468B (en) | 2023-12-05 |
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