CN209063001U - 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
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- CN209063001U CN209063001U CN201821916560.1U CN201821916560U CN209063001U CN 209063001 U CN209063001 U CN 209063001U CN 201821916560 U CN201821916560 U CN 201821916560U CN 209063001 U CN209063001 U CN 209063001U
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- support
- auxiliary pump
- heart chamber
- pin
- hole
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- 210000005242 cardiac chamber Anatomy 0.000 title claims abstract description 44
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000007787 solid Substances 0.000 claims description 3
- 208000007536 Thrombosis Diseases 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 239000008280 blood Substances 0.000 description 4
- 210000004369 blood Anatomy 0.000 description 4
- 206010019280 Heart failures Diseases 0.000 description 2
- 238000002513 implantation Methods 0.000 description 2
- 241001672694 Citrus reticulata Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 229940030225 antihemorrhagics Drugs 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000025 haemostatic effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 235000015096 spirit Nutrition 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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- External Artificial Organs (AREA)
Abstract
A kind of device for leading component for dismantling axial-flow type heart chamber auxiliary pump tail, ejecting mechanism and fixed mechanism including pedestal and on the pedestal；The ejecting mechanism includes the first support and the second support；Preceding knock-pin is equipped in the screw hole of first support, which is equipped with interconnecting piece；Second support includes sliding slot, and the inner wall of the sliding slot is equipped with dovetail groove；The sliding slot both ends are respectively arranged below with the supporting leg of inverted U, and sliding block is equipped in the sliding slot, and the side arm of the sliding block is located in dovetail groove；The sliding block side is equipped with circular hole, and for the connecting portion in the circular hole, the other side is equipped with rear knock-pin；The fixed mechanism includes third support, and upper mounted plate and bottom plate are equipped between second support and third support；First support, second support pass through a crossbeam with the two sides top surface of the third support respectively and are fixedly connected；The rear knock-pin end can sequentially pass through the through-hole of fixed part and third support between upper mounted plate and bottom plate.
Description
Technical field
The utility model belongs to the field of medical instrument technology, and in particular to one kind is for dismantling axial-flow type heart chamber auxiliary pump tail
Lead the device of component.
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.
Utility model content
In view of the above problems, the purpose of the utility model is to provide one kind leads portion for dismantling axial-flow type heart chamber auxiliary pump tail
The device of part may be implemented not destroy tail in the smooth disassembly, disassembly process that mechanical shaft type axis stream heart chamber auxiliary pump tail leads and lead
And the purpose of thrombus thereon.
To achieve the above object, the utility model 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.
The beneficial effects of the utility model are: the utility model is for dismantling the dress that axial-flow type heart chamber auxiliary pump tail leads component
It sets, the thrombus that tail leads upper formation can will not be destroyed while the tail for dismantling axial-flow type heart chamber auxiliary pump leads component.This is practical
It is novel to be fixed axial-flow type heart chamber auxiliary pump by fixed mechanism, it pushes tail to lead axial movement by ejecting mechanism, tail is led into edge
Axially ejection casing inner wall, two sections of knock-pins that ejecting mechanism mainly rotates between each other connect the ejection of touching with tail to casing
Bar is only axially moved, and is not rotated, and can lead the thrombus led with tail to avoid tail is worn in disassembly process, in order to avoid in ventricle
It is untrue that auxiliary pump is disassembled phenomenon in the pump observed after pump.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that the utility model is used to dismantle the device that axial-flow type heart chamber auxiliary pump tail leads component.
Fig. 2 is the structural representation for the pedestal that the utility model is used to dismantle the device that axial-flow type heart chamber auxiliary pump tail leads component
Figure.
Fig. 3 is the structure for the first support that the utility model is used to dismantle the device that axial-flow type heart chamber auxiliary pump tail leads component
Schematic diagram.
Fig. 4 is the structure for the second support that the utility model is used to dismantle the device that axial-flow type heart chamber auxiliary pump tail leads component
Schematic diagram.
Fig. 5 is the structure for the preceding knock-pin that the utility model is used to dismantle the device that axial-flow type heart chamber auxiliary pump tail leads component
Schematic diagram.
Fig. 6 is the structure for the rear knock-pin that the utility model is used to dismantle the device that axial-flow type heart chamber auxiliary pump tail leads component
Schematic diagram.
Fig. 7 is the structure for the third support that the utility model is used to dismantle the device that axial-flow type heart chamber auxiliary pump tail leads component
Schematic diagram.
Fig. 8 is the structural representation for the crossbeam that the utility model is used to dismantle the device that axial-flow type heart chamber auxiliary pump tail leads component
Figure.
Fig. 9 is the structure for the upper mounted plate that the utility model is used to dismantle the device that axial-flow type heart chamber auxiliary pump tail leads component
Schematic diagram.
Figure 10 is the knot for the bottom plate that the utility model is used to dismantle the device that axial-flow type heart chamber auxiliary pump tail leads component
Structure schematic diagram.
Figure 11 is that the structure for the handwheel that the utility model is used to dismantle the device that axial-flow type heart chamber auxiliary pump tail leads component is shown
It is intended to.
Specific embodiment
The possible form of implementation of the utility model is only illustrated with embodiment below, however not to limit the utility model
Claimed scope.
As shown in Figure 1, the utility model provides a kind of device that component is led for dismantling axial-flow type heart chamber auxiliary pump tail, packet
Include pedestal 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 utility model is equipped with the switching part 233 of cylindrical type,
The switching part 233 is equipped with the fin 234 parallel with preceding 23 axis of knock-pin.As shown in figure 11, the company of being equipped in the middle part of the handwheel 231
Hole 235 is connect, which is equipped with keyway 236 corresponding with the fin 234.As shown in fig. 6, the rear knock-pin 25 wraps
Large-diameter portion 251 and small diameter portion 252 are included, is connected by the varying diameter portion 253 of tapered diameter therebetween, the large-diameter portion 251 and the cunning
Block 24 is fixedly connected, and 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 utility model is using the pump housing outer surface of heart chamber auxiliary pump 5 as clamping stationary plane, ejecting mechanism
The wheel hub that tail is led is acted on, tail is led by the wheel hub endface position for pushing tail to lead and is axially pushed up along heart chamber auxiliary pump casing inner wall
Out, hand wheel rotating passes to two-part knock-pin by screw thread and bond structure, and the oat tail groove structure of rear knock-pin pushes up after limiting
The rotation of rod, 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 phases
To static, rear knock-pin only leads a forward motive force to tail, can be to avoid between rear knock-pin and tail guide wheel hub end face
There are worn away in disassembly process caused by rotary motion tail lead and thereon thrombus the case where appearance.The utility model can be with
Tail for dismantling mechanical shaft type axis stream heart chamber auxiliary pump leads component, can to avoid in disassembly process damage tail lead component and its
On thrombus.
The utility model is defined by the claim.But it is based on this, those skilled in the art can
It, all should be within the main spirits and protection scope of the utility model to make various obvious variations or change.
Claims (4)
1. a kind of device for leading component for dismantling axial-flow type heart chamber auxiliary pump tail, which is characterized in that including pedestal and be set to this
Ejecting mechanism and fixed mechanism on pedestal；
The ejecting mechanism includes the first support and the second support being sequentially arranged on the pedestal；First support is in " convex " font,
Both ends are fixed by screws on the pedestal, and middle part is equipped with screw hole；Threaded preceding knock-pin, the sinciput are equipped in the screw hole
Rod outer end is equipped with handwheel, and inner end is equipped with the interconnecting piece of cylindrical type；Second support includes the U-shaped sliding slot in section, should
The opposite inner wall of sliding slot is equipped with the dovetail groove being recessed inwardly；Sliding block is equipped in the sliding slot, which has the sheet of cuboid-type
Body, the ontology two sides are equipped with side arm corresponding with the dovetail groove, which is located in corresponding dovetail groove, enable sliding block edge should
Sliding slot sliding；The sliding block is equipped with circular hole towards the side of first support, the connecting portion in the circular hole, the sliding block it is another
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 the pedestal
On；
The fixed mechanism includes the third support on the pedestal, which is in " convex " font, and both ends are solid by screw
Determine on the base, middle part is equipped with through-hole；First support, second support and the third support two sides top surface pass through respectively
One crossbeam is fixedly connected；Upper mounted plate and bottom plate are equipped between two crossbeams, the upper mounted plate and bottom plate are located at
Between second support and third support；Protuberance forms semicircular lug boss upwards in the middle part of the upper mounted plate, the bottom plate
Middle part be recessed form semicircular recessed portion downwards, the lug boss and recessed portion are oppositely arranged to form circular fixed part；It should
Knock-pin end can sequentially pass through the fixed part and the through-hole afterwards.
2. according to claim 1 for dismantling the device that axial-flow type heart chamber auxiliary pump tail leads component, it is characterised in that: institute
The axis for stating screw hole, interconnecting piece, circular hole, fixed part and through-hole is overlapped.
3. according to claim 1 or 2 for dismantling the device that axial-flow type heart chamber auxiliary pump tail leads component, feature exists
In: the preceding knock-pin outer end is equipped with the switching part of cylindrical type, which is equipped with the fin parallel with the preceding knock-pin axis；
Connecting hole is equipped in the middle part of the handwheel, which is equipped with keyway corresponding with the fin.
4. according to claim 1 or 2 for dismantling the device that axial-flow type heart chamber auxiliary pump tail leads component, feature exists
In: knock-pin includes large diameter portion and small diameter portion after described, is connected by the varying diameter portion of tapered diameter therebetween, the large-diameter portion with
The sliding block is fixedly connected, and the diameter of the small diameter portion is less than the internal diameter of the through-hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821916560.1U CN209063001U (en) | 2018-11-20 | 2018-11-20 | A kind of device for leading component for dismantling axial-flow type heart chamber auxiliary pump tail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821916560.1U CN209063001U (en) | 2018-11-20 | 2018-11-20 | A kind of device for leading component for dismantling axial-flow type heart chamber auxiliary pump tail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209063001U true CN209063001U (en) | 2019-07-05 |
Family
ID=67099934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821916560.1U Withdrawn - After Issue CN209063001U (en) | 2018-11-20 | 2018-11-20 | A kind of device for leading component for dismantling axial-flow type heart chamber auxiliary pump tail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209063001U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109227468A (en) * | 2018-11-20 | 2019-01-18 | 中国医学科学院阜外医院 | A kind of device for leading component for dismantling axial-flow type heart chamber auxiliary pump tail |
-
2018
- 2018-11-20 CN CN201821916560.1U patent/CN209063001U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109227468A (en) * | 2018-11-20 | 2019-01-18 | 中国医学科学院阜外医院 | A kind of device for leading component for dismantling axial-flow type heart chamber auxiliary pump tail |
| CN109227468B (en) * | 2018-11-20 | 2023-12-05 | 中国医学科学院阜外医院 | Device for disassembling axial-flow type ventricular assist pump tail guide part |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190705 Effective date of abandoning: 20231205 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20190705 Effective date of abandoning: 20231205 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |