CN206638533U - Venous detaining needle counter-bending test machine - Google Patents
Venous detaining needle counter-bending test machine Download PDFInfo
- Publication number
- CN206638533U CN206638533U CN201720349977.3U CN201720349977U CN206638533U CN 206638533 U CN206638533 U CN 206638533U CN 201720349977 U CN201720349977 U CN 201720349977U CN 206638533 U CN206638533 U CN 206638533U
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- Prior art keywords
- venous detaining
- detaining needle
- pedestal
- fixed
- rotating disk
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Abstract
Venous detaining needle counter-bending test machine, for carrying out counter-bending test to venous detaining needle.End cap is provided with the top of pedestal, rotating disk is rotatablely equipped with front side of pedestal, the rotary disc driving mechanism that driving rotating disk rotates in the horizontal plane is provided with pedestal；Some slot covers are provided with the upper surface of rotating disk, cover plate is provided with slot cover, test flume is provided with the lower section of each slot cover；Stent is placed with test flume, stent includes arc section and the straightway positioned at arc section both ends；Cylinder is provided with the rear side of pedestal, otic placode is fixed with the piston rod of cylinder, rotating shaft is rotatablely installed on otic placode, installation wheel is fixed with rotating shaft, movable mold is removably installed on installation wheel, movable mold is provided with lockable mechanism positioned at the outside of installation wheel between movable mold and installation wheel.The utility model is applied to the bend test of venous detaining needle, to ensure normal work of the venous detaining needle in human body.
Description
Technical field
Medical experiment technical field is the utility model is related to, specifically a kind of venous detaining needle counter-bending test machine.
Background technology
Disposable venous detaining needle belongs to catheter in blood vessel, is supported the use with transfusion device or blood transfusion apparatus, can be inserted into simultaneously
By the transfusion of peripheral vascular venous system or blood transfusion of catheter retaining to human body, there is easy to operate, mitigation patient to be punctured repeatedly
Etc. advantage, the patient that intermittent infusion number is more within a period of time is primarily adapted for use in.Therefore, venous detaining needle
With ordinary venous transfusion needle essence be not both inlying catheter presence and usage time grow, during its Clinical practice, greatly
Most of patients can be because limb activity causes the vein indwelling needle catheter after insertion vein that different degrees of bending occurs, may
The reduction of liquid in pipe flow can be caused.
Since venous detaining needle introduces China, professional standard YY 0285.5-2004 have been performed always《It is disposable sterile
The part of catheter in blood vessel the 5th：Trocar peripheral catheters》(ISO 10555-5:1996,IDT).The standard specifies outer for inserting
The requirement of sleeve pipe pin type catheter in blood vessel in all vascular systems, only venous detaining needle provide most basic requirement, not
It is related to the evaluation requirement of the bending resistance of catheter in blood vessel.
The bending resistance experiment of existing evaluation medical high polymer flexible pipe also has standard GB/T/T both at home and abroad at present
15812-1995《Medical high polymer flexible pipe physical property test method》With European standard EN 13868:2002《Conduit single-chamber is led
Pipe and medical tubing bend test method》.Method in the two standards is applied to size and the larger macromolecule flexible pipe of specification,
Particularly non-vascular inner flexible tube, catheter in blood vessel, particularly size and the less vein indwelling needle catheter of specification are not suitable for it.
Utility model content
The purpose of this utility model is to provide a kind of venous detaining needle counter-bending test machine, for entering to venous detaining needle
Row counter-bending test.
The technical scheme in the invention for solving the technical problem is：Venous detaining needle counter-bending test machine, it
Including pedestal, rotating disk, rotary disc driving mechanism, cylinder, stent and movable mold, end cap is provided with the top of the pedestal, in institute
State and rotating disk is rotatablely equipped with front side of pedestal, the rotary disc driving mechanism that driving rotating disk rotates in the horizontal plane is provided with pedestal；
Some slot covers being circumferentially uniformly arranged are provided with the upper surface of the rotating disk, peace is hinged in the slot cover
Equipped with transparent cover plate, test flume is provided with the lower section of each slot cover, the test flume is by semicircle orifice and rectangular opening structure
Into, and the diameter of semicircle orifice is identical with the length of rectangular opening, the test flume and slot cover run through the circular outer wall of rotating disk；
Stent is placed with the test flume, the stent includes arc section and the straightway positioned at arc section both ends, difference examination
The internal diameter of stent circular arc segment section in check of foundation subsoil；
Cylinder is provided with the rear side of the pedestal, otic placode is fixed with the piston rod of the cylinder, on the otic placode
The rotating shaft vertically placed is rotatablely equipped with, installation wheel is fixed with rotating shaft, movable mold is removably installed on installation wheel,
The movable mold is cirque structure and is located at the outside of installation wheel, and lockable mechanism is provided between movable mold and installation wheel.
Further, groove is provided with the front side of pedestal, the rotating disk is rotatablely installed in a groove by bearing.
Further, rotary disc driving mechanism includes electric rotating machine, worm screw, worm gear, gear and gear ring, and the electric rotating machine is consolidated
Fixed to be fixed with retainer ring in a groove in the bottom of rotating disk, gear ring is provided with the inwall of retainer ring, gear ring engages with gear,
Gear setting coaxial with worm gear, the worm gear and the worm engaging for being fixed on electric rotating machine output end.
Further, the cover plate is glass workpiece.
Further, inserted link is fixed with the arc section of the stent, is provided with the inwall of test flume and inserted link
The slot that grafting coordinates.
Further, the inserted link and slot are pyramidal structure.
Further, the lockable mechanism includes lock device, baffle plate, limiting plate, spring, sliding block and latch, the locking
Device is fixed in the blind hole on installation wheel circular outer wall, and lock device is hollow structure, and one end of lock device is provided with baffle plate, the other end
Provided with limiting plate, sliding block is provided with lock device inner chamber, spring is provided between sliding block and baffle plate, is fixed with sliding block slotting
Sell, the jack that lock device is placed on movable mold inwall is stretched out in the effect end of latch after passing through limiting plate under the action of the spring
In；Chute is provided with the upper surface of mounting blocks, the bottom that slide bar and slide bar are slidably fitted with chute is connected with sliding block.
The beneficial effects of the utility model are：Venous detaining needle counter-bending test machine provided by the utility model, by vein
After remaining needle is placed in stent, by cylinder drive movable mold close to stent and press venous detaining needle and then carry out it is curved
Song experiment；According to the length of venous detaining needle, the stent and movable mold of corresponding size are selected.The utility model can be to length phase
Bend test is carried out to shorter venous detaining needle, to ensure normal work of the venous detaining needle in human body.
Brief description of the drawings
Fig. 1 is front schematic view of the present utility model；
Fig. 2 is that the utility model removes the schematic top plan view after top cover；
Fig. 3 is the scheme of installation of rotating disk；
Fig. 4 is the schematic diagram of rotating disk；
Fig. 5 is the schematic diagram after cover plate is opened；
Fig. 6 is the schematic diagram of stent；
Fig. 7 is the schematic diagram of movable mold；
Fig. 8 is the internal structure schematic diagram of movable mold；
Fig. 9 is the schematic diagram of lockable mechanism；
In figure：1 pedestal, 11 end caps, 12 bearings, 13 support rings, 2 rotating disks, 21 retainer rings, 22 gear rings, 23 gears, 24 snails
Wheel, 25 worm screws, 26 electric rotating machines, 27 slot covers, 28 test flumes, 29 slots, 3 cover plates, 4 stents, 41 inserted links, 5 cylinders, 51 ears
Plate, 52 rotating shafts, 6 installation wheels, 61 lock devices, 62 baffle plates, 63 sliding blocks, 64 springs, 65 limiting plates, 66 latches, 67 chutes, 68 slide
Bar, 7 movable molds.
Embodiment
As shown in Figures 1 to 9, the utility model mainly includes pedestal 1, rotating disk 2, rotary disc driving mechanism, movable mold 7, gas
Cylinder 5 and stent 4, the utility model is described in detail below in conjunction with the accompanying drawings.
As shown in figure 1, pedestal 1 is basis of the present utility model, it is hinged at the top of pedestal and end cap 11 is installed, such as Fig. 2
It is shown, rotating disk 2 is provided with the front side of pedestal, as shown in figure 3, groove is provided with the front side of pedestal, it is fixed on the inwall of groove
There is support ring 13, support ring is fixed on the inwall of groove.Bearing 12 is provided with support ring, is fixed with the inner ring of bearing
Retainer ring 21, a part of the retainer ring for rotating disk and the bottom positioned at rotating disk, the rotation connection of rotating disk and pedestal is realized with this.
Gear ring 22 is fixed with the inwall of retainer ring, electric rotating machine 26 is fixed with the groove of pedestal, in the output end of electric rotating machine
Worm screw 25 is fixed with, the engagement of worm and wheel 24 coordinates, and worm gear is coaxially disposed with gear 23, and gear engages cooperation with gear ring.Tooth
The gear shaft of wheel is rotatably installed in the groove of pedestal by bearing.Electric rotating machine, worm screw, worm gear, gear and gear ring constitute
Rotary disc driving mechanism.
As shown in figure 5, being provided with some slot covers 27 being circumferentially uniformly arranged at the top of rotating disk, slot cover can be three
It is individual, four or more.It is hinged in slot cover and cover plate 3 is installed, cover plate is transparent glass workpiece or working of plastics.In cover plate
The lower section of groove is provided with test flume 28, and slot cover and test flume run through the circular outer wall of rotating disk.Test flume is by semicircle orifice and rectangle
Hole is formed, and the length of rectangular opening is identical with the diameter of semicircle orifice.Slot 29 is provided with the inwall of test flume, slot is taper
Structure, stent 4 is provided with test flume, as shown in fig. 6, stent includes arc section and the straight line positioned at arc section both ends
Section, the inserted link 41 of taper is fixed with the outer wall of stent arc section, inserted link is inserted in slot to the installation for realizing stent,
Now the outer wall of stent contacts with the inwall of test flume.As shown in figure 4, after stent is arranged in test flume, close the lid
Plate 3.Stent internal diameter in different tests groove, in order to carry out bending examination to the venous detaining needle of different length
Test.
As shown in figure 1, the rear side in pedestal is provided with cylinder 5, otic placode 51 is fixed with the piston rod of cylinder, such as Fig. 7 institutes
Showing, otic placode is L-shaped structure, and rotating shaft 52 is rotatablely equipped with otic placode, and installation wheel 6 is fixed with rotating shaft, as shown in figure 8,
The circular outer wall of installation wheel is provided with blind hole, and lock device 61 is fixed with blind hole, as shown in figure 9, lock device is tied to be cylindric
Structure, baffle plate 62 is sealed with wherein one end of lock device, limiting plate 65 is sealed with the other end of lock device, in lock device
Sliding block 63 is slidably fitted with chamber, spring 64 is provided between sliding block and baffle plate, latch 66 is fixed with sliding block, in spring
Lock device is stretched out in the effect end of the lower latch of effect after passing through limiting plate.Chute 67 is provided with the upper surface of installation wheel, on sliding block
It is fixed with slide bar 68, sliding bar is arranged in chute and the top of slide bar is placed in the top of installation wheel.In the outside of installation wheel
Provided with movable mold 7, movable mold is the metalwork of annular, can be copper piece, stainless steel part etc..It is provided with the inwall of movable mold
Jack, installation wheel is relatively fixed with movable mold when the effect end of latch is placed in jack.According to the length of venous detaining needle, selection
Suitable stent and movable mold, to ensure the accuracy of bend test.
In use, according to the length of venous detaining needle, driving rotating disk rotates the stent direction activity for causing corresponding size
Mould, then the movable mold of correspondingly-sized is installed according to the size of stent.Venous detaining needle is placed on movable mold and stent
Between and venous detaining needle is contacted with stent, subsequent drive cylinder acts so that movable mold close to stent and presses quiet
Vein, and then the bending to venous detaining needle is realized, then whether there is discounting phenomenon through cover plate observation venous detaining needle
.
Claims (7)
1. venous detaining needle counter-bending test machine, it includes pedestal, rotating disk, rotary disc driving mechanism, cylinder, stent and activity
Mould, end cap is provided with the top of the pedestal, rotating disk is rotatablely equipped with front side of the pedestal, driving is provided with pedestal and is turned
The rotary disc driving mechanism that disk rotates in the horizontal plane；
Some slot covers being circumferentially uniformly arranged are provided with the upper surface of the rotating disk, is hinged and is provided with the slot cover
Transparent cover plate, test flume being provided with the lower section of each slot cover, the test flume is made up of semicircle orifice and rectangular opening, and
The diameter of semicircle orifice is identical with the length of rectangular opening, and the test flume and slot cover run through the circular outer wall of rotating disk；Described
Stent is placed with test flume, the stent includes arc section and the straightway positioned at arc section both ends, different tests groove
In stent circular arc segment section internal diameter；
Cylinder is provided with the rear side of the pedestal, otic placode is fixed with the piston rod of the cylinder, is rotated on the otic placode
The rotating shaft vertically placed is installed, installation wheel is fixed with rotating shaft, movable mold is removably installed on installation wheel, it is described
Movable mold is cirque structure and is located at the outside of installation wheel, and lockable mechanism is provided between movable mold and installation wheel.
2. venous detaining needle counter-bending test machine according to claim 1, it is characterized in that, it is provided with the front side of pedestal recessed
Groove, the rotating disk are rotatablely installed in a groove by bearing.
3. venous detaining needle counter-bending test machine according to claim 2, it is characterized in that, rotary disc driving mechanism includes rotation
Motor, worm screw, worm gear, gear and gear ring, the electric rotating machine are fixed in a groove, and retainer ring is fixed with the bottom of rotating disk,
Gear ring is provided with the inwall of retainer ring, gear ring engages with gear, gear setting coaxial with worm gear, and the worm gear is with being fixed on rotation
The worm engaging of rotating motor output end.
4. venous detaining needle counter-bending test machine according to claim 1, it is characterized in that, the cover plate is glass workpiece.
5. venous detaining needle counter-bending test machine according to claim 1, it is characterized in that, in the arc section of the stent
On be fixed with inserted link, on the inwall of test flume be provided with inserted link grafting coordinate slot.
6. venous detaining needle counter-bending test machine according to claim 5, it is characterized in that, the inserted link and slot are cone
Shape structure.
7. venous detaining needle counter-bending test machine according to claim 1, it is characterized in that, the lockable mechanism includes locking
Device, baffle plate, limiting plate, spring, sliding block and latch, the lock device are fixed in the blind hole on installation wheel circular outer wall, locking
Device is hollow structure, and one end of lock device is provided with limiting plate provided with baffle plate, the other end, sliding block is provided with lock device inner chamber,
Spring is provided between sliding block and baffle plate, latch is fixed with sliding block, the effect end of latch passes through spacing under the action of the spring
Lock device is stretched out after plate to be placed in the jack on movable mold inwall；Chute is provided with the upper surface of mounting blocks, it is sliding in chute
It is dynamic slide bar to be installed and the bottom of slide bar is connected with sliding block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720349977.3U CN206638533U (en) | 2017-04-05 | 2017-04-05 | Venous detaining needle counter-bending test machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720349977.3U CN206638533U (en) | 2017-04-05 | 2017-04-05 | Venous detaining needle counter-bending test machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206638533U true CN206638533U (en) | 2017-11-14 |
Family
ID=60247464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720349977.3U Expired - Fee Related CN206638533U (en) | 2017-04-05 | 2017-04-05 | Venous detaining needle counter-bending test machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206638533U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108572112A (en) * | 2018-07-20 | 2018-09-25 | 常熟迈得医疗器械技术服务有限公司 | A kind of catheter resistance to bend(ing) test instrument |
| CN111790888A (en) * | 2020-07-14 | 2020-10-20 | 安徽聚源昕锐精密机械有限公司 | Signal wheel capable of reducing waste casting sand consumption and production process |
| CN117030494A (en) * | 2023-08-09 | 2023-11-10 | 济南众测机电设备有限公司 | Guide wire testing device |
-
2017
- 2017-04-05 CN CN201720349977.3U patent/CN206638533U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108572112A (en) * | 2018-07-20 | 2018-09-25 | 常熟迈得医疗器械技术服务有限公司 | A kind of catheter resistance to bend(ing) test instrument |
| CN111790888A (en) * | 2020-07-14 | 2020-10-20 | 安徽聚源昕锐精密机械有限公司 | Signal wheel capable of reducing waste casting sand consumption and production process |
| CN111790888B (en) * | 2020-07-14 | 2021-08-24 | 安徽聚源昕锐精密机械有限公司 | Signal wheel capable of reducing waste casting sand consumption and production process |
| CN117030494A (en) * | 2023-08-09 | 2023-11-10 | 济南众测机电设备有限公司 | Guide wire testing device |
| CN117030494B (en) * | 2023-08-09 | 2024-04-19 | 济南众测机电设备有限公司 | Guide wire testing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171114 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |