CN206960329U - A kind of Medical urethral catheter coefficient of friction detection device - Google Patents
A kind of Medical urethral catheter coefficient of friction detection device Download PDFInfo
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- CN206960329U CN206960329U CN201720389650.9U CN201720389650U CN206960329U CN 206960329 U CN206960329 U CN 206960329U CN 201720389650 U CN201720389650 U CN 201720389650U CN 206960329 U CN206960329 U CN 206960329U
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- 238000001514 detection method Methods 0.000 title claims abstract description 27
- 230000033001 locomotion Effects 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 230000000694 effects Effects 0.000 claims description 19
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 230000009471 action Effects 0.000 claims description 4
- 238000013459 approach Methods 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
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- 239000007787 solid Substances 0.000 claims description 3
- 239000013078 crystal Substances 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 210000001519 tissue Anatomy 0.000 description 12
- 230000003321 amplification Effects 0.000 description 4
- 238000003199 nucleic acid amplification method Methods 0.000 description 4
- 238000007689 inspection Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 2
- 230000002485 urinary effect Effects 0.000 description 2
- 206010061218 Inflammation Diseases 0.000 description 1
- 208000002193 Pain Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009087 cell motility Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000004054 inflammatory process Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000004877 mucosa Anatomy 0.000 description 1
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Abstract
A kind of Medical urethral catheter coefficient of friction detection device, including coefficient of friction detector body, by pallet, left fixture, right fixture and hauling rope are formed, pallet is concave structure, pallet is arranged on the movable blowout patche top of coefficient of friction detector body stepper motor output shaft, respectively there is a lasso at hauling rope both ends, hauling rope is without elasticity, hauling rope one end lasso is enclosed on the sliding block left end of coefficient of friction detector body, hauling rope other end lasso is enclosed on the motion bar of the force cell right-hand member of coefficient of friction detector body, left fixture has two sets of identical, two sets of left fixtures are separately mounted to left part rear and front end in pallet, right fixture is arranged on right part in pallet, there is water in pallet, the sliding block bottom of coefficient of friction detector body is located at two catheter tops.Originally it is new to provide valid data support, the application prospect having had effectively to be determined to the catheter coefficient of friction of production under simulated human tissue moist environment to judge whether product is qualified.
Description
Technical field
Checkout facility field is the utility model is related to, the catheter coefficient of friction of Clinical practice can particularly be carried out accurate
A kind of Medical urethral catheter coefficient of friction detection device really detected.
Background technology
On medicinal, catheter using when need to contact with injected organism tissue, it is sick when inserting or pull out injected organism tissue every time
People can have different degrees of burning pain sense, easily cause corresponding mucosa injury, or even tissue inflammation, and this is mainly due to leading
Caused by the coefficient of kinetic friction of urinary catheter Facing material and injected organism tissue is larger；Because above-mentioned reason catheter is dynamic in injected organism tissue
Coefficient of friction is the technical indicator strictly controlled on production line.But, can currently on the market also without a kind of reliable detection method
Effectively determined with the catheter coefficient of friction to production, so as to provide gross data branch to judge whether product is qualified
Hold.Existing detection method judges generally by human hand sensation, feels by human hand to judge that confined condition is more, it is impossible to
Obtain an intuitively coefficient of friction data.In the prior art, it is known that coefficient of friction detector operation principle is to be detected article
Moved right under stepper motor drive inside coefficient of friction detector, utilize the relatively-stationary sliding block lower end in position and measured object
Resistance caused by friction, sliding block, the measurement bar band coefficient of kinetic friction of rubbed coefficient detector detect face-to-face between product top
The motion bar of instrument force cell moves right, and force cell produces faint because being acted on Light deformation by transverse shifting power
Millivolt magnitude voltage signals, operational amplifier amplification in the rubbed coefficient detector of this signal, turn the ADC of rubbed coefficient detector
Conversion chip, become data signal, then by being shown after the single-chip microcomputer collection identification of coefficient of friction detector by LCDs
Intuitively friction co-efficient value；Resistance caused by friction is bigger face-to-face between sliding block lower end and tested article, that is, measured object
The surface of product is more coarse, the activity of sliding block, measurement bar with coefficient of kinetic friction detector force cell of coefficient of friction detector
Bar moves right, and distance is longer, and LCDs shows that intuitively friction co-efficient value is bigger.But existing coefficient of friction inspection
Survey instrument primarily directed to measurement paper, plastic sheeting measuring friction coefficient and design, both sides during test due to tested article are surveyed
Examination face is exposed in air ambient, is face and face dryness friction between the sliding block and tested article of coefficient of friction detector, can not
The moist environment of human body injected organism tissue is simulated, thus is applied to cannot get an accurately number during catheter measuring friction coefficient
Value.More than being based on, there is provided under a kind of moist environment for imitating out human body injected organism tissue, carried out using existing coefficient of friction detector
The detection of catheter coefficient of friction seems particularly necessary.
Utility model content
In order to overcome existing artificial detection catheter coefficient of friction, it is impossible to an intuitively coefficient of friction data is obtained,
And existing coefficient of friction detector is applied to the drawbacks of detection of catheter coefficient of friction cannot get Effective Numerical, this practicality is new
Type provides one kind and acted on through associated mechanisms, under the moist environment for imitating out human body injected organism tissue, is examined using existing coefficient of friction
Survey instrument and carry out catheter coefficient of friction detection, acquired results are more authentic and valid, to judge the reliable reason of the whether qualified offer of product
A kind of Medical urethral catheter coefficient of friction detection device supported by data.
Technical scheme is used by the utility model solves its technical problem：
A kind of Medical urethral catheter coefficient of friction detection device, including coefficient of friction detector body, it is characterised in that by holding in the palm
Disk, left fixture, right fixture and hauling rope are formed, and pallet is concave structure, and pallet lower end longitudinal measure has two screw rods, friction
The movable blowout patche top longitudinal measure of coefficient detector body stepper motor output shaft has two fixed plates with perforate, passes through
The screw rod of pallet lower end two inserts the perforate of movable two fixed plates in blowout patche top of stepper motor output shaft, two nuts respectively
The external screw thread of two screw rods is screwed in respectively, pallet is arranged on the movable axis of coefficient of friction detector body stepper motor output shaft
Top is enclosed, respectively there is a lasso at hauling rope both ends, and for hauling rope without elasticity, hauling rope one end lasso is enclosed on coefficient of friction detection
The sliding block left end of instrument body, hauling rope other end lasso are enclosed on the activity of the force cell right-hand member of coefficient of friction detector body
On bar, left fixture has two sets of identical, and two sets of left fixtures are separately mounted to left part rear and front end in pallet, and right fixture is arranged on support
Right part in disk, there is water in pallet, and two detected catheter left parts are separately mounted on two sets of left fixtures during detection, are detected
Two catheter right parts be separately mounted on right fixture, the sliding block bottom of coefficient of friction detector body is located at two catheters
Top.
After described pallet is arranged on the movable blowout patche top of coefficient of friction detector body stepper motor output shaft, friction
When coefficient detector body stepper motor obtains electric work its output shaft and rotated clockwise, in coefficient of friction detector body stepping electricity
On machine output shaft under external screw thread and the effect of coefficient of friction detector body stepper motor output shaft activity blowout patche internal thread, friction system
The movable blowout patche of number detector body stepper motor output shaft can drive pallet transverse shifting to the right, coefficient of friction detector body
When stepper motor obtains electric work its output shaft and rotated counterclockwise, the outer spiral shell on coefficient of friction detector body stepper motor output shaft
Under line and the effect of coefficient of friction detector body stepper motor output shaft activity blowout patche internal thread, coefficient of friction detector body step
The movable blowout patche of stepper motor output shaft can drive pallet transverse shifting to the left.
Described often to cover left fixture and be made up of fix bar A, spring A, ambulatory splint A, fixed plate A and adjusting screw rod A, often set is left
Fixture fix bar A, spring A respectively have identical two, and two fix bar A lower ends of the left fixture of first set are respectively welded in pallet left
Portion rear end, second set of left two fix bar A lower end of fixture are respectively welded at left part front end in pallet, often cover two bullets of left fixture
Spring A is respectively fitted on two fix bar A of left fixture, and there is a perforate ambulatory splint A left and right ends for often covering left fixture, often
The left and right ends perforate for covering left fixture ambulatory splint A is respectively fitted on two fix bar A of every left fixture of set, is often covered left fixture and is consolidated
There is a silk hole in the middle part of fixed board A, often cover the subordinate ends of left clamp fixing plate A or so two and be respectively welded at every cover left fixture two admittedly
One regulation handle A is arranged at fixed pole A upper ends, adjusting screw rod A tops, and adjusting screw rod A lower ends screw into silk in the middle part of fixed plate A
In hole.
After two sets of described left fixtures install, the regulation handle A on adjusting screw rod A tops to during right rotation, spiral shell is adjusted
Bar A can be moved upwards along silk hole in the middle part of fixed plate A, elastic acting force lower edge two of the ambulatory splint A left and right ends in two spring A
Fix bar A is moved upwards, and bottom left distance widens in ambulatory splint A lower ends and pallet, the regulation hand on adjusting screw rod A tops
Handle A is to during anticlockwise, and adjusting screw rod A can move downward along silk hole in the middle part of fixed plate A, and ambulatory splint A left and right ends overcome two
Spring A two fix bar A of elastic acting force lower edge are moved downward, and bottom left distance is close in ambulatory splint A lower ends and pallet.
Described right fixture is made up of fix bar B, spring B, ambulatory splint B, fixed plate B and adjusting screw rod B, and spring B has
Two, two fix bar B lower ends are respectively welded at right part rear and front end in pallet, and two spring Bs are respectively fitted over two fix bar B
On, respectively there is a perforate ambulatory splint B left and right ends, and ambulatory splint B left and right ends perforate is respectively fitted over two fix bar B
On, there is the subordinate end of a silk hole, fixed plate B or so two to be respectively welded at two fix bar B upper ends in the middle part of fixed plate B, adjust spiral shell
One regulation handle B is arranged at bar B tops, and adjusting screw rod B lower ends are screwed into the middle part of fixed plate B in silk hole.
After described right fixture installs, the regulation handle B on adjusting screw rod B tops to during right rotation, adjusting screw rod B meetings
Silk hole is moved upwards in the middle part of along fixed plate B, and ambulatory splint B left and right ends are solid in the elastic acting force lower edge two of two spring Bs
Fixed pole B is moved upwards, and right distance from bottom widens in ambulatory splint B lower ends and pallet, the regulation handle B on adjusting screw rod B tops
To during anticlockwise, adjusting screw rod B can move downward along silk hole in the middle part of fixed plate B, and ambulatory splint B left and right ends overcome two springs
B two fix bars of elastic acting force lower edge move downward, and right distance from bottom approaches in ambulatory splint B lower ends and pallet.
Two catheter one end are clamped between two sets of left fixture ambulatory splint A lower ends and pallet upper end, right fixture
Two catheter other ends are clamped between lower end ambulatory splint B and pallet upper end, two catheters are in straight condition, rub
The sliding block bottom of coefficient detector body is located at two catheter tops, and water, hauling rope and coefficient of friction inspection are injected inside pallet
Straight condition is between the force cell of survey instrument body, obtaining electric work in coefficient of friction detector body stepper motor, its is defeated
Shaft rotates clockwise, and the movable blowout patche of coefficient of friction detector body stepper motor output shaft drives pallet transverse shifting to the right
Afterwards, when friction is produced between two catheter tops and sliding block top, sliding block can be moved right due to rubbing action, and through traction
The motion bar that strap moves force cell is moved right, and force cell is acted on Light deformation by transverse shifting power, is produced faint
Millivolt magnitude voltage signals, operational amplifier amplification in the rubbed coefficient detector body of this signal, turn rubbed coefficient detector
Intrinsic ADC conversion chips, become data signal, then by after the intrinsic single-chip microcomputer collection identification of coefficient of friction detector by
The LCDs of coefficient of friction detector body shows intuitively friction co-efficient value, sliding block lower end and tested two urethral catheterization
Resistance caused by friction is bigger face-to-face between pipe, that is, the surface of tested catheter is more coarse, and sliding block drives force-measuring sensing
The motion bar of device moves right, and distance is longer, and LCDs shows that intuitively friction co-efficient value is bigger.
The utility model beneficial effect is：This new coefficient of friction work(that article is detected using existing coefficient of friction detector
Can, coefficient of friction detector body upper part is installed one with coefficient of friction detector body stepper motor output shaft activity blowout patche
Mobile pallet, and left fixture, right fixture and hauling rope are installed in pallet, it can carry out leading under simulated human tissue moist environment
Urinary catheter coefficient of friction detects.Before detection, two detected catheters are fixed on by pallet interior lower end by left and right fixture, rubbed
The sliding block for wiping coefficient detector is located at two catheter tops, injects water inside pallet；During detection, in coefficient of friction detector sheet
Body stepper motor obtains electric work its output shaft and rotated clockwise, the movable axis of coefficient of friction detector body stepper motor output shaft
Circle drive pallet is to the right after transverse shifting, and when friction is produced between two catheter tops and sliding block top, sliding block can be due to rubbing
Wiping effect moves right, and drives the motion bar of force cell to move right through hauling rope, and force cell is by transverse shifting
Power acts on Light deformation, produces faint millivolt magnitude voltage signals, operational amplifier in the rubbed coefficient detector body of this signal
Amplification, turn the ADC conversion chips of rubbed coefficient detector body, become data signal, then by coefficient of friction detector body
Single-chip microcomputer collection identification after intuitively friction co-efficient value, sliding block shown by the LCDs of coefficient of friction detector body
Resistance caused by friction is bigger face-to-face between lower end and tested two catheters, that is, the surface of tested catheter is got over
It is coarse, sliding block drive force cell motion bar move right distance it is longer, LCDs show intuitively friction system
Numerical value is bigger；Due to being injected with water inside pallet, two urethral catheterization can be measured under the moist environment closer to human body injected organism tissue
Pipe is in coefficient of friction caused by this environment；Finally shown according to the LCDs of coefficient of friction detector body and intuitively rubbed
Wipe coefficient value divided by two, you can the friction co-efficient value of a catheter is obtained, finally by piece catheter friction co-efficient value of gained
Contrasted with reference to related data in the industry, be certified products less than related data, be substandard product higher than related data.This
It is new the catheter coefficient of friction of production effectively to be determined, provide effective theoretical value to judge whether product is qualified
According to support, so with good application prospect.
Brief description of the drawings
The utility model is described further with reference to the accompanying drawings and examples.
Fig. 1 is the utility model forward sight structural representation.
Fig. 2 is the left fixture left view structural representation of the utility model.
Fig. 3 is the utility model overlooking the structure diagram.
Embodiment
Shown in Fig. 1, Fig. 2, Fig. 3, a kind of Medical urethral catheter coefficient of friction detection device, including coefficient of friction detector
Body 1, it is made up of pallet 2, left fixture 3, right fixture 4 and hauling rope 5, pallet 2 is concave structure, and the lower end of pallet 2 is longitudinally welded
Two screw rods are connected to, the movable blowout patche top longitudinal measure of the stepper motor output shaft of coefficient of friction detector body 1 there are two tools
There is the fixed plate of perforate, insert two, the movable blowout patche top of stepper motor output shaft respectively by pallet 2 lower end two screw rod
The perforate of fixed plate, two nuts screw in the external screw thread of two screw rods respectively, and pallet 2 is arranged on coefficient of friction detector body
Respectively there is a lasso at the movable blowout patche top of 1 stepper motor output shaft, the both ends of hauling rope 5, and hauling rope 5 is without elasticity, traction
One end lasso of rope 5 is enclosed on the left end of sliding block 6 of coefficient of friction detector body 1, and the other end lasso of hauling rope 5 is enclosed on coefficient of friction inspection
Survey on the motion bar of the right-hand member of force cell 7 of instrument body 1, left fixture 3 has two sets of identical, and two sets of left fixtures 3 are installed respectively
The left part rear and front end in pallet 2, right fixture 6 are arranged on right part in pallet 2, there is water in pallet 2, two be detected during detection
The left part of catheter 8 is separately mounted on two sets of left fixtures 3, and detected two right parts of catheter 8 are separately mounted to right fixture 4
On, the bottom of sliding block 6 of coefficient of friction detector body is located at two tops of catheter 8.Pallet 2 is arranged on coefficient of friction detector
Behind the movable blowout patche top of the stepper motor output shaft of body 1, the stepper motor of coefficient of friction detector body 1 obtains electric work, and it is exported
When axle rotates clockwise, external screw thread and coefficient of friction detector 1 on the stepper motor output shaft of coefficient of friction detector body 1
Under the effect of body stepper motor output shaft activity blowout patche internal thread, the activity of the stepper motor output shaft of coefficient of friction detector body 1
Blowout patche can drive the transverse shifting to the right of pallet 2, and it is counterclockwise that the stepper motor of coefficient of friction detector body 1 obtains electric work its output shaft
During rotation, external screw thread and the stepping of coefficient of friction detector body 1 electricity on the stepper motor output shaft of coefficient of friction detector body 1
Under the effect of machine output shaft activity blowout patche internal thread, the movable blowout patche of the stepper motor output shaft of coefficient of friction detector body 1 can band
Move the transverse shifting to the left of pallet 2.Left fixture 3 is often covered by fix bar A3-1, spring A3-2, ambulatory splint A3-3, fixed plate A3-4
Formed with adjusting screw rod A3-5, often cover left fixture fix bar A3-1, spring A3-2 has identical two, the left fixture two of first set
Fix bar A3-1 lower ends are respectively welded at left part rear end in pallet 2, second set of left two fix bar A3-1 lower ends difference of fixture
Left part front end in pallet 2 is welded on, two spring A3-2 for often covering left fixture are respectively fitted over two fix bar A3-1 of left fixture
On, there is a perforate ambulatory splint A3-3 left and right ends for often covering left fixture, often cover left fixture ambulatory splint A3-3 left and right
Both ends perforate is respectively fitted on two fix bar A3-1 of every left fixture of set, and often covering in the middle part of left clamp fixing plate A3-4 has a silk
Hole, two fix bar A3-1 upper ends that the subordinate ends of left clamp fixing plate A3-4 or so two are respectively welded at every left fixture of set are often covered,
One regulation handle A3-6 is arranged at adjusting screw rod A3-5 tops, and adjusting screw rod A3-5 lower ends are screwed into the middle part of fixed plate A3-4
In silk hole.After two sets of left fixtures 3 install, the regulation handle A3-6 on adjusting screw rod A3-5 tops to during right rotation, spiral shell is adjusted
Bar A3-5 can be moved upwards along silk hole in the middle part of fixed plate A, and elasticity of the ambulatory splint A3-3 left and right ends in two spring A3-2 is made
Firmly two fix bar A3-1 of lower edge are moved upwards, and bottom left distance widens in ambulatory splint A3-3 lower ends and pallet 2, regulation
To during anticlockwise, adjusting screw rod A3-4 can be transported downwards the regulation handle A3-6 on screw rod A3-4 tops along silk hole in the middle part of fixed plate A3-1
Dynamic, ambulatory splint A3-3 left and right ends overcome two spring A3-2 two fix bar A3-1 of elastic acting force lower edge to transport downwards
Dynamic, bottom left distance is close in ambulatory splint A3-3 lower ends and pallet 2.Right fixture 4 by fix bar B, spring B, ambulatory splint B,
Fixed plate B and adjusting screw rod B compositions, spring B have two, and two fix bar B lower ends are respectively welded in pallet two before and after right part
End, two spring Bs are respectively fitted on two fix bar B, and respectively there are a perforate, an ambulatory splint B left side in ambulatory splint B left and right ends
Right both ends perforate is respectively fitted on two fix bar B, there is the subordinate end of a silk hole, fixed plate B or so two difference in the middle part of fixed plate B
Two fix bar B upper ends are welded on, a regulation handle B is arranged at adjusting screw rod B tops, and adjusting screw rod B lower ends screw into
In the middle part of fixed plate B in silk hole.After right fixture 4 installs, the regulation handle B4-6 on adjusting screw rod B4-5 tops to during right rotation,
Adjusting screw rod B4-5 can be moved upwards along silk hole in the middle part of fixed plate B4-4, and ambulatory splint B4-3 left and right ends are in two spring B 4-2
Two fix bar B4-1 of elastic acting force lower edge move upwards, right distance from bottom is drawn in ambulatory splint B4-3 lower ends and pallet 2
Greatly, the regulation handle B4-6 on adjusting screw rod B4-5 tops to during anticlockwise, adjusting screw rod B4-5 can be along in the middle part of fixed plate B4-4
Silk hole moves downward, and ambulatory splint B4-3 left and right ends overcome two spring B 4-2 two fix bar 4- of elastic acting force lower edge
1 moves downward, and right distance from bottom approaches in ambulatory splint B4-3 lower ends and pallet 2.Two sets of left fixture ambulatory splint A3-3 lower ends
Two one end of catheter 8 are clamped between the upper end of pallet 2, two between the right lower end ambulatory splint B of fixture 4 and the upper end of pallet 2
The other end of bar catheter 8 clamps, and two catheters 8 are in straight condition, and the bottom of sliding block 6 of coefficient of friction detector body is located at
Two tops of catheter 8, the inside of pallet 2 injection water, between hauling rope 5 and the force cell 7 of coefficient of friction detector body
In straight condition, obtain electric work its output shaft in the stepper motor of coefficient of friction detector body 1 and rotate clockwise, coefficient of friction
The movable blowout patche of the stepper motor output shaft of detector body 1 drives pallet 2 to the right after transverse shifting, two tops of catheter 8 and
When friction is produced between the top of sliding block 6, sliding block 6 can be moved right due to rubbing action, and drive force cell through hauling rope 5
7 motion bar is moved right, and force cell 7 is acted on Light deformation by transverse shifting power, produces faint millivolt magnitude voltage signals,
Operational amplifier amplifies in the rubbed coefficient detector body 1 of this signal, and the ADC turned in rubbed coefficient detector body 1 turns
Chip is changed, becomes data signal, then by being detected after the single-chip microcomputer collection identification in coefficient of friction detector body 1 by coefficient of friction
The LCDs of instrument body 1 shows intuitively friction co-efficient value, is rubbed face-to-face between the lower end of sliding block 6 and two catheters 8
Resistance is bigger caused by wiping, that is, the surface of tested catheter 8 is more coarse, and sliding block 6 drives the motion bar of force cell 7
Moving right, distance is longer, and LCDs shows that intuitively friction co-efficient value is bigger.
Shown in Fig. 1, Fig. 2, Fig. 3, this is new in use, detected to two catheters 8, to keep friction system simultaneously
The sliding block 6 of number detector can keep poised state when being located on catheter 8.Originally it is new to be detected using existing coefficient of friction detector
The coefficient of friction function of article, the top of coefficient of friction detector body 1 is installed one with the stepping of coefficient of friction detector body 1
The pallet 2 of motor output shaft activity blowout patche movement, and can enter after the left fixture 3 of installation, right fixture 4 and hauling rope 5 in pallet 2
Catheter coefficient of friction detects under row simulated human tissue moist environment.Before detection, the injection water in pallet 2, two sets of left folders
The regulation handle A3-6 on the adjusting screw rod A3-5 tops of tool 3 is to right rotation, and adjusting screw rod A3-5 is along silk hole in the middle part of fixed plate A3-4
Motion, the two fix bar A3-1 of elastic acting force lower edge of ambulatory splint A3-3 left and right ends in two spring A3-2 are upward upwards
Move, bottom left distance widens in ambulatory splint A3-3 lower ends and pallet 2, this moment two one end of catheter 8 is individually placed to live
In dynamic clamping plate A3-3 lower ends and pallet 2 between bottom left, then the regulation handle A3-6 on adjusting screw rod A3-5 tops to left-handed
Turn, adjusting screw rod A3-5 moves downward along silk hole in the middle part of fixed plate A3-4, and ambulatory splint A3-3 left and right ends overcome two springs
A3-2 two fix bar A3-1 of elastic acting force lower edge are moved downward, in ambulatory splint A3-3 lower ends and pallet 2 bottom left away from
From approaching, two one end of catheter 8 are clamped in ambulatory splint A3-3 lower ends and pallet 2 between bottom left；Right chuck 4 is adjusted
The regulation handle B for saving screw rod B tops is moved upwards to right rotation, adjusting screw rod B along silk hole in the middle part of fixed plate B, and ambulatory splint B is left
Right both ends are moved upwards in two fix bar B of elastic acting force lower edge of two spring Bs 4, in ambulatory splint B lower ends and pallet 2
Right distance from bottom widens, this moment two other ends of catheter 8 be individually placed in ambulatory splint B lower ends and pallet 2 bottom left it
Between, then the regulation handle B on adjusting screw rod B tops is moved downward to anticlockwise, adjusting screw rod B along silk hole in the middle part of fixed plate B,
Ambulatory splint B left and right ends overcome two fix bar B of elastic acting force lower edge of two spring Bs to move downward, under ambulatory splint B
Right distance from bottom approaches in end and pallet 2, and two other ends of catheter 8 are clamped at right bottom in ambulatory splint B lower ends and pallet 2
Catheter 8 is in straight condition after between portion.After catheter 8 is in straight condition, the sliding block 6 of coefficient of friction detector is placed on
Two tops of catheter 8, then, the both ends of hauling rope 5 sliding block 6 with coefficient of friction detector body, force cell 7 respectively
Connection.In test, after the power switch for opening coefficient of friction detector body 1, in the stepper motor of coefficient of friction detector body 1
Electric work its output shaft slowly rotates clockwise, the movable blowout patche band of the stepper motor output shaft of coefficient of friction detector body 1
The transverse shifting to the right of pallet 2 is moved, because the stepper motor of coefficient of friction detector body 1 obtains its output shaft of electric work in slowly inverse
Hour hands rotate, so, the water in pallet 2 is to resistance very little caused by the sliding block 6 of coefficient of friction detector body 1；When pallet 2 to
During right transverse shifting, friction can be produced between two tops of catheter 8 and the top of sliding block 6, sliding block 6 can be due to rubbing action to the right
It is mobile, and through hauling rope 5, the motion bar of force cell 7 with coefficient of kinetic friction detector body 1 moves right, force cell
7 are acted on Light deformation by transverse shifting power, produce faint millivolt magnitude voltage signals, the rubbed coefficient detector body 1 of this signal
Interior operational amplifier amplification, turns the ADC conversion chips in rubbed coefficient detector body 1, becomes data signal, then by rubbing
Shown directly by the LCDs of coefficient of friction detector body 1 after single-chip microcomputer collection identification in coefficient detector body 1
The friction co-efficient value of sight, resistance caused by friction is bigger face-to-face between the lower end of sliding block 6 and two catheters 8, that is, tested
The surface of examination catheter 8 is more coarse, and sliding block 6 drives the motion bar of force cell 7 to move right apart from longer, LCDs
Show that intuitively friction co-efficient value is bigger；, can be in the moistening closer to human body injected organism tissue due to being injected with water inside pallet 2
Under environment, two catheters 8 are measured in coefficient of friction caused by this environment；Finally according to the liquid of coefficient of friction detector body 1
Crystal display screen shows intuitively friction co-efficient value divided by two, you can the friction co-efficient value of a catheter 8 is obtained, finally by institute
Obtaining the friction co-efficient value of catheter 8 combination, related data is contrasted in the industry, is certified products less than related data, higher than phase
It is substandard product to close data.Originally it is new the catheter coefficient of friction of production effectively to be determined, to judge to produce
Whether product are qualified to provide effective gross data support, so with good application prospect.
The present embodiment is the utility model preferred embodiments, not new to limit, all in the present embodiment spirit
Any modification, equivalent substitution and improvements etc. are inside done, should be included within this new protection domain.
Claims (7)
1. a kind of Medical urethral catheter coefficient of friction detection device, including coefficient of friction detector body, it is characterised in that by pallet,
Left fixture, right fixture and hauling rope are formed, and pallet is concave structure, and pallet lower end longitudinal measure has two screw rods, friction system
The movable blowout patche top longitudinal measure of number detector body stepper motor output shaft has two fixed plates with perforate, passes through support
The screw rod of disk lower end two inserts the perforate of movable two fixed plates in blowout patche top of stepper motor output shaft, two nuts point respectively
Not Xuan Ru two screw rods external screw thread, pallet be arranged on coefficient of friction detector body stepper motor output shaft movable blowout patche
Respectively there is a lasso at top, hauling rope both ends, and hauling rope is enclosed on coefficient of friction detector without elasticity, hauling rope one end lasso
The sliding block left end of body, hauling rope other end lasso are enclosed on the motion bar of the force cell right-hand member of coefficient of friction detector body
On, left fixture has two sets of identical, and two sets of left fixtures are separately mounted to left part rear and front end in pallet, and right fixture is arranged on pallet
Interior right part, there is water in pallet, and two detected catheter left parts are separately mounted on two sets of left fixtures during detection, detected
Two catheter right parts are separately mounted on right fixture, and the sliding block bottom of coefficient of friction detector body is on two catheters
Portion.
2. a kind of Medical urethral catheter coefficient of friction detection device according to claim 1, it is characterised in that pallet is arranged on
Behind the movable blowout patche top of coefficient of friction detector body stepper motor output shaft, coefficient of friction detector body stepper motor obtains
When its output shaft of electricity work rotates clockwise, external screw thread and friction system on coefficient of friction detector body stepper motor output shaft
Under the internal thread effect of number detector body stepper motor output shaft activity blowout patche, the output of coefficient of friction detector body stepper motor
The movable blowout patche of axle can drive pallet transverse shifting to the right, and coefficient of friction detector body stepper motor obtains electric work its output shaft
When rotating counterclockwise, external screw thread and coefficient of friction detector body step on coefficient of friction detector body stepper motor output shaft
Under the effect of stepper motor output shaft activity blowout patche internal thread, the movable blowout patche meeting of coefficient of friction detector body stepper motor output shaft
Drive pallet transverse shifting to the left.
3. a kind of Medical urethral catheter coefficient of friction detection device according to claim 1, it is characterised in that often cover left fixture
It is made up of fix bar A, spring A, ambulatory splint A, fixed plate A and adjusting screw rod A, often covers left fixture fix bar A, spring A has
Identical two, two fix bar A lower ends of the left fixture of first set are respectively welded at left part rear end in pallet, second set of left fixture two
Fix bar A lower ends are respectively welded at left part front end in pallet, and two spring A for often covering left fixture are respectively fitted over the two of left fixture
On fix bar A, there is a perforate ambulatory splint A left and right ends for often covering left fixture, often cover a left fixture ambulatory splint A left side
Right both ends perforate is respectively fitted on two fix bar A of every left fixture of set, and often covering in the middle part of left clamp fixing plate A has a silk hole,
Often cover two fix bar A upper ends that the subordinate ends of left clamp fixing plate A or so two are respectively welded at every left fixture of set, adjusting screw rod A
One regulation handle A is arranged at top, and adjusting screw rod A lower ends are screwed into the middle part of fixed plate A in silk hole.
A kind of 4. Medical urethral catheter coefficient of friction detection device according to claim 3, it is characterised in that two sets of left fixtures
After installing, the regulation handle A on adjusting screw rod A tops to during right rotation, adjusting screw rod A can along silk hole in the middle part of fixed plate A to
Upper motion, ambulatory splint A left and right ends are moved upwards in two spring A two fix bar A of elastic acting force lower edge, activity folder
Bottom left distance widens in plate A lower ends and pallet, the regulation handle A on adjusting screw rod A tops to during anticlockwise, adjusting screw rod A
It can be moved downward along silk hole in the middle part of fixed plate A, ambulatory splint A left and right ends overcome two spring A elastic acting force lower edge two
Fix bar A is moved downward, and bottom left distance is close in ambulatory splint A lower ends and pallet.
5. a kind of Medical urethral catheter coefficient of friction detection device according to claim 1, it is characterised in that right fixture is by solid
Fixed pole B, spring B, ambulatory splint B, fixed plate B and adjusting screw rod B compositions, spring B have two, two fix bar B lower ends difference
Right part rear and front end in pallet is welded on, two spring Bs are respectively fitted on two fix bar B, and ambulatory splint B left and right ends respectively have
One perforate, ambulatory splint B left and right ends perforate are respectively fitted on two fix bar B, have a silk hole in the middle part of fixed plate B,
The subordinate ends of fixed plate B or so two are respectively welded at two fix bar B upper ends, and a regulation handle B is arranged at adjusting screw rod B tops, adjust
Section screw rod B lower ends are screwed into the middle part of fixed plate B in silk hole.
A kind of 6. Medical urethral catheter coefficient of friction detection device according to claim 5, it is characterised in that right fixture installation
After good, the regulation handle B on adjusting screw rod B tops to during right rotation, adjusting screw rod B can be transported upwards along silk hole in the middle part of fixed plate B
Dynamic, ambulatory splint B left and right ends are moved upwards in two fix bar B of elastic acting force lower edge of two spring Bs, ambulatory splint B
Right distance from bottom widens in lower end and pallet, and the regulation handle B on adjusting screw rod B tops to during anticlockwise, adjusting screw rod B can edge
Silk hole moves downward in the middle part of fixed plate B, and ambulatory splint B left and right ends overcome the elastic acting force lower edge two of two spring Bs solid
Fixed pole moves downward, and right distance from bottom approaches in ambulatory splint B lower ends and pallet.
A kind of 7. Medical urethral catheter coefficient of friction detection device according to claim 5, it is characterised in that two sets of left fixtures
Two catheter one end are clamped between ambulatory splint A lower ends and pallet upper end, right fixture lower end ambulatory splint B and pallet upper end
Between two catheter other ends are clamped, two catheters are in straight condition, under the sliding block of coefficient of friction detector body
Portion is located at two catheter tops, injection water inside pallet, the force cell of hauling rope and coefficient of friction detector body it
Between be in straight condition, obtaining electric work its output shaft in coefficient of friction detector body stepper motor rotates clockwise, friction system
The movable blowout patche of number detector body stepper motor output shafts drives pallet to the right after transverse shifting, two catheter tops and cunning
When friction is produced between block top, sliding block can be moved right due to rubbing action, and the work of force cell is driven through hauling rope
Lever is moved right, and force cell is acted on Light deformation by transverse shifting power, produces faint millivolt magnitude voltage signals, this signal
Operational amplifier amplifies in rubbed coefficient detector body, turns the rubbed intrinsic ADC conversion chips of coefficient detector, becomes
Into data signal, then by after the collection identification of coefficient of friction detector intrinsic single-chip microcomputer by the liquid of coefficient of friction detector body
Crystal display screen shows intuitively friction co-efficient value, between sliding block lower end and tested two catheters caused by face-to-face friction
Resistance is bigger, that is, the surface of tested catheter is more coarse, and sliding block drives the motion bar of force cell to move right distance
Longer, LCDs shows that intuitively friction co-efficient value is bigger.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720389650.9U CN206960329U (en) | 2017-04-14 | 2017-04-14 | A kind of Medical urethral catheter coefficient of friction detection device |
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|---|---|---|---|
| CN201720389650.9U CN206960329U (en) | 2017-04-14 | 2017-04-14 | A kind of Medical urethral catheter coefficient of friction detection device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113358555A (en) * | 2021-05-19 | 2021-09-07 | 南京航空航天大学 | Test device and test method for measuring friction coefficient of sealing ring under different compression ratios |
| CN114965255A (en) * | 2022-06-06 | 2022-08-30 | 常熟迈得医疗器械技术服务有限公司 | Detection mechanism based on friction coefficient of catheter and detection method thereof |
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2017
- 2017-04-14 CN CN201720389650.9U patent/CN206960329U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113358555A (en) * | 2021-05-19 | 2021-09-07 | 南京航空航天大学 | Test device and test method for measuring friction coefficient of sealing ring under different compression ratios |
| CN113358555B (en) * | 2021-05-19 | 2023-02-10 | 南京航空航天大学 | Test device and test method for measuring friction coefficient of sealing ring under different compression ratios |
| CN114965255A (en) * | 2022-06-06 | 2022-08-30 | 常熟迈得医疗器械技术服务有限公司 | Detection mechanism based on friction coefficient of catheter and detection method thereof |
| CN114965255B (en) * | 2022-06-06 | 2023-12-29 | 常熟迈得医疗器械技术服务有限公司 | Catheter friction coefficient-based detection mechanism and detection method thereof |
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Denomination of utility model: A medical urinary catheter friction coefficient detection device Effective date of registration: 20231129 Granted publication date: 20180202 Pledgee: Qilu Bank Co.,Ltd. Jinan Government Service Center Branch Pledgor: JINAN SEARCHING ELECTRONIC TECHNOLOGY Co.,Ltd. Registration number: Y2023980068170 |