CN105954129A - Fatigue performance testing device for laparoscopic surgical forceps - Google Patents
Fatigue performance testing device for laparoscopic surgical forceps Download PDFInfo
- Publication number
- CN105954129A CN105954129A CN201610513824.8A CN201610513824A CN105954129A CN 105954129 A CN105954129 A CN 105954129A CN 201610513824 A CN201610513824 A CN 201610513824A CN 105954129 A CN105954129 A CN 105954129A
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- China
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- fixing device
- guide pillar
- spring
- bolt
- trocar sheath
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
- G01N3/34—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces generated by mechanical means, e.g. hammer blows
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a fatigue performance testing device for laparoscopic surgical forceps, which is characterized by comprising a reciprocating motion device, a pull rod head fixing device, an outer sleeve fixing device, a pressure device and a force measurement device, wherein an outer sleeve of a forceps lever of the laparoscopic surgical forceps and a pull rod head of the forceps lever are respectively arranged on the outer sleeve fixing device and the pull rod head fixing device. The fatigue performance testing device has the technical effects that the structural design is reasonable; the structure is simple; testing cost can be effectively reduced and influence brought by subjective factors can be effectively avoided; a testing speed is high and a result is accurate; safety and effectiveness of a product are effectively ensured.
Description
Technical field
The present invention relates to the fatigue property test device of a kind of surgical forceps for abdominoscope.
Background technology
Along with fast development and the popularization and application of laparoscopic surgery technology, surgical forceps for abdominoscope is made a kind of indispensable
Medical surgical instrument, its application is more and more extensive.Existing surgical forceps with cavity mirror model is numerous, makes
Complex process, and the quality of product itself concerns the success or failure setting about art, it is right that usual product needs before dispatching from the factory
The project affecting its safety and effectiveness is tested, and wherein the test of fatigue behaviour is extremely key
One.Mensuration to fatigue behaviour is mostly to carry out repeated multiple times imitative use by staff at present, it is judged that mould
Formula is subjective and the size of the most energetic power.Therefore, a kind of tired to surgical forceps for abdominoscope is developed
Labor performance testing device is necessary.
Summary of the invention
Not having corresponding fatigue property test device to solve current surgical forceps for abdominoscope, causing cannot be fast
Speed carries out the technical problem of fatigue behaviour detection accurately to surgical forceps for abdominoscope, and the present invention provides a kind of knot
Structure is simple, low cost, test speed are fast and result is accurate, and the safety of product, effectiveness can be made to obtain
The fatigue property test device of the surgical forceps for abdominoscope of Reliable guarantee.
In order to realize above-mentioned technical purpose, the technical scheme is that, a kind of surgical forceps for abdominoscope tired
Labor performance testing device, including reciprocator, drawhead fixing device, trocar sheath fixing device,
Pressure apparatus and force measuring device, the trocar sheath of the claw beam of surgical forceps for abdominoscope and the drawhead of claw beam divide
Not being arranged in trocar sheath fixing device and drawhead fixing device, described reciprocator connection is drawn
Head fixing device also drives drawhead fixing device reciprocating, so that claw beam head is relative to claw beam body
Making the relative motion stretching and shrinking, described pressure apparatus includes that spring, described spring are arranged at
Between trocar sheath fixing device and force measuring device, the most externally sleeve fixing device imposes and claw beam head stretching side
To contrary pressure, force measuring device detection spring is exerted pressure namely trocar sheath fixing device is to trocar sheath
The testing fatigue power loaded.
The fatigue property test device of described a kind of surgical forceps for abdominoscope, described drawhead fixing device
Including guide pillar, the guide pillar fixed block of groove-like and slide block, one end of described guide pillar is fixed on guide pillar and is fixed
On block, described slide block has the slider throughbores passed for guide pillar and hangs on guide pillar by slider throughbores,
Slide block is provided with for the drawhead groove of steady brace head and in being fixed on by drawhead, reciprocator
Connection sliding block also drives slide block to move along guide pillar.
The fatigue property test device of described a kind of surgical forceps for abdominoscope, described trocar sheath fixing device
Including card cell body, described card cell body is provided with the overcoat tube seat of fixed jacket pipe and is fixed on by trocar sheath
In, card cell body has the card cell body through hole passed for guide pillar and hung on guide pillar by card cell body through hole and
One side contacts guide pillar fixed block, card cell body be respectively arranged on slide block in guide pillar fixed block relative to both sides.
The fatigue property test device of described a kind of surgical forceps for abdominoscope, described pressure apparatus also includes
Spring constraint bolt and regulation bolt, described spring constraint bolt includes key and is arranged at the bolt of key one end
Head, the diameter of described key is less than the internal diameter of spring, and the diameter of bolt head is more than the internal diameter of spring, spring
It is sleeved on key and extend out to outside key is not provided with the first end of bolt and contact force measurement apparatus, described
Regulation bolt screws in the screw arranged to trocar sheath fixing device contact bolt head to adjust the compression of spring
Amount.
The fatigue property test device of described a kind of surgical forceps for abdominoscope, described reciprocator bag
Including motor, motor supporting base, sheave and connecting rod, described motor is fixed on motor supporting base, sheave
Being installed in the drive shaft of motor and driven rotation by motor, one end of connecting rod is fixed in the groove of sheave,
The other end is fixed in drawhead fixing device.
The fatigue property test device of described a kind of surgical forceps for abdominoscope, also includes controlling display unit,
Described control display unit is communicatively connected to reciprocator and force measuring device respectively, and controls past
The start and stop of multiple telecontrol equipment and the measurement numerical value of display force measuring device.
The fatigue property test device of described a kind of surgical forceps for abdominoscope, also includes base plate, and described is past
Multiple telecontrol equipment, drawhead fixing device, trocar sheath fixing device, pressure apparatus and force measuring device are equal
It is fixed on base plate.
The fatigue property test device of described a kind of surgical forceps for abdominoscope, described regulation bolt is to spring
The maximum compression length of constraint bolt, the greatest length extending out to outside key less than spring.
The method have technical effect that, reasonable in design, simple in construction, it is possible to effectively reduce survey
Examination cost and the impact avoiding subjective factors to bring, test speed is fast and result accurate, is effectively guaranteed
The safety of product and effectiveness.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of the opposite side of the present invention；.
Fig. 3 is the sectional view of the present invention；
Wherein 1 for controlling display unit, and 2 is base plate, and 3 is pressure measurement cell, and 4 is motor, and 5 are
Motor fixing seat, 6 is sheave, and 7 is connecting rod, and 8 is guide pillar fixed block, and 9 is guide pillar, and 10 is slide block,
11 is card cell body, and 12 is claw beam, and 121 is pull bar, and 122 fix seat for claw beam, and 123 is trocar sheath, 13
For spring, 14 is spring constraint bolt, and 15 is regulation bolt.
Detailed description of the invention
Seeing Fig. 1-3, the present embodiment includes that reciprocator, drawhead fixing device, trocar sheath are fixed
Device, pressure apparatus and force measuring device, the trocar sheath of the claw beam of surgical forceps for abdominoscope and drawing of claw beam
Head is respectively arranged in trocar sheath fixing device and drawhead fixing device, and reciprocator connection is drawn
Head fixing device also drives drawhead fixing device reciprocating, so that claw beam head is relative to claw beam body
Making the relative motion stretching and shrinking, pressure apparatus includes that spring, spring are arranged at the fixing dress of trocar sheath
Put between force measuring device and external sleeve fixing device imposes the pressure contrary with claw beam head draw direction
Power, force measuring device detection spring is exerted pressure namely trocar sheath fixing device is tired to carry added by trocar sheath
Labor test force.
In order to realize fixing claw beam head and drive, drawhead fixing device includes guide pillar, groove-like
Guide pillar fixed block and slide block, one end of guide pillar is fixed on guide pillar fixed block, slide block has and wears for guide pillar
The slider throughbores crossed also hangs on guide pillar by slider throughbores, and slide block is provided with drawing for steady brace head
Drawhead is also fixed on interior by head groove, and reciprocator connection sliding block also drives slide block to move along guide pillar.
For the fixation clamps body of rod, trocar sheath fixing device includes that card cell body, card cell body are provided with fixed jacket
The overcoat tube seat of pipe in being fixed on by trocar sheath, card cell body has the card cell body through hole passed for guide pillar
And hanging on guide pillar by card cell body through hole and a side contacts guide pillar fixed block, card cell body sets respectively with slide block
In guide pillar fixed block relative to both sides.
In order to adjust accordingly pressure, pressure apparatus also includes spring constraint bolt and regulation bolt, bullet
Spring constraint bolt includes key and is arranged at the bolt head of key one end, and the diameter of key is less than the internal diameter of spring,
The diameter of bolt head is more than the internal diameter of spring, and spring housing is contained on key and extend out to key, and to be not provided with bolt first
Outside end and contact force measurement apparatus, regulation bolt screws in the screw arranged to trocar sheath fixing device also
Contact bolt head is to adjust the decrement of spring.In the present embodiment, guide pillar fixed block is U-shaped, card cell body
Side press close on the side inwall of guide pillar fixed block.The bottom of card cell body is provided with for accommodating spring about
Bundle bolt and the dead slot of spring.The opening of dead slot is towards force measuring device, after spring is inserted in dead slot, directly
Connect contact force measurement apparatus.The other end of dead slot is i.e. provided with screw, and guide pillar fixed block is provided with and screw position
Putting the bolt hole of correspondence, regulation bolt is screwed in screw by bolt hole again, in order to adjust at any time
Joint pressure.According to different needs, it is also possible to do not set through hole, the most first adjust regulation bolt and start again
Test.Also can not set dead slot, make spring directly pass through pressure compaction on card cell body with force measuring device.
The reciprocator of the present embodiment includes motor, motor supporting base, sheave and connecting rod, and motor is solid
On motor supporting base, sheave is installed in the drive shaft of motor and is driven rotation by motor, connecting rod
One end is fixed in the groove of sheave, and the other end is fixed in drawhead fixing device.And according to actual feelings
The needs of condition, it would however also be possible to employ if motor-driven screw mandrel, cylinder etc. are as reciprocator.
For the ease of controlling in real time and observation test case, the present embodiment also includes controlling display unit, control
Display unit processed is communicatively connected to reciprocator and force measuring device respectively, and controls to move back and forth dress
The start and stop put and the measurement numerical value of display force measuring device.
In order to unify fixing device, it is simple to mobile, the present embodiment also includes base plate, reciprocator,
Drawhead fixing device, trocar sheath fixing device, pressure apparatus, force measuring device and control display are single
Unit is both secured on base plate.
In order to make spring play due force effect, regulation bolt is long to the maximum compression of spring constraint bolt
Degree, the greatest length extending out to outside key less than spring.It is so in order to avoid the two ends of spring constraint bolt
The most directly contact card cell body and trocar sheath fixing device, making spring lose should have effect.
The control display unit of the present embodiment is used for controlling reducing motor rotating speed and number of revolutions and pressure
The display of measuring unit force feedback, motor is arranged on motor supporting base and is fixed on base plate.Card cell body and cunning
All being machined with the guide pillar hole of symmetry in block, guide pillar is led through both corresponding guide pillar holes two is fixed on
On post fixed block, so that card cell body can slide laterally along guide rail with slide block.It is provided with solid on card cell body
Determine claw beam and fix the draw-in groove of seat, and card slot length fix seat length with claw beam consistent, and arrange on slide block
There is the draw-in groove laying pull bar bulb, then pass through slide block movement and make pull bar occur relative with trocar sheath
Mobile, thus control the opening and closing degree of binding clip.Sheave, connecting rod, guide pillar fixed block, guide pillar, slide block group
Becoming slider-crank mechanism to realize its motion by driven by motor, slide block is stretching and is regaining two extreme positions
When, the two positions that on driving link sheave, crank is corresponding is on same straight line, so this mechanism is without urgency
The characteristic returned, slide block is all to move along a straight line slowly when stroke and return, the then opening and closing speed of binding clip
Unanimously, thus simulate in operation actual operational circumstances.Spring is inserted in from the head end of spring constraint bolt,
Being then charged on card cell body in the hole of correspondence, now the end of spring should be pressed in pressure measxurement mould when assembling
The surface of block, but spring constraint bolt must not stretch out spring end and contact with pressure measuring module.Regulation bolt
By the screw that screws on card cell body thus withstand the end of spring constraint bolt, then spring and pressure sensitive
The tightness of unit contact is adjusted by regulating bolt, and the counteracting force of spring makes card cell body only
Can carry out limited slip along guide rail, when test, card cell body will not contact with pressure sensitive unit all the time.
When carrying out the fatigue property test of operating forceps, first the end of claw beam seat and pull bar is snapped in card cell body
With on slide block in corresponding groove, the most manually rotate sheave and be parked at range, i.e. binding clip
The position of crank when opening maximum angle, rotates regulation bolt and sets pulling force to be applied, the number of pulling force
Being worth and controlling display on display unit, arrange on control display unit needs the number of times of circulation just may be used simultaneously
With the intensity under the pulling force effect being in circulation to weaknesses such as operating forceps pull bar and binding clip linkages, just
The mechanical properties such as degree measure and assess.This device can effectively reduce testing cost and avoid subjective because of
The impact that element brings, test speed is fast and result is accurate, it is ensured that the safety of product and effectiveness.
The present invention is not limited to above-mentioned embodiment, no matter making any change on its shape or material are constituted,
Every employing structure provided by the present invention designs, and is all a kind of deformation of the present invention, is all considered as at this
Within invention protection domain.
Claims (8)
1. the fatigue property test device of a surgical forceps for abdominoscope, it is characterised in that include moving back and forth
Device, drawhead fixing device, trocar sheath fixing device, pressure apparatus and force measuring device, peritoneoscope
The trocar sheath of the claw beam of operating forceps and the drawhead of claw beam are respectively arranged at trocar sheath fixing device and pull bar
In head fixing device, described reciprocator cylinder lever connecting rod head fixing device also drives drawhead to fix
Device is reciprocating, so that claw beam head makees the relative motion stretching and shrinking, institute relative to claw beam body
The pressure apparatus stated include spring, described spring be arranged at trocar sheath fixing device and force measuring device it
Between and externally sleeve fixing device impose the pressure contrary with claw beam head draw direction, force measuring device detects
Spring is exerted pressure namely the trocar sheath fixing device testing fatigue power to carrying added by trocar sheath.
The fatigue property test device of a kind of surgical forceps for abdominoscope the most according to claim 1, it is special
Levying and be, described drawhead fixing device includes guide pillar, the guide pillar fixed block of groove-like and slide block, institute
The one end of the guide pillar stated is fixed on guide pillar fixed block, and described slide block has the slide block passed for guide pillar
Through hole also hangs on guide pillar by slider throughbores, slide block be provided with for steady brace head drawhead groove also
In being fixed on by drawhead, reciprocator connection sliding block also drives slide block to move along guide pillar.
The fatigue property test device of a kind of surgical forceps for abdominoscope the most according to claim 2, it is special
Levying and be, described trocar sheath fixing device includes that card cell body, described card cell body are provided with fixed jacket
The overcoat tube seat of pipe in being fixed on by trocar sheath, card cell body has the card cell body through hole passed for guide pillar
And hanging on guide pillar by card cell body through hole and a side contacts guide pillar fixed block, card cell body sets respectively with slide block
In guide pillar fixed block relative to both sides.
The fatigue property test device of a kind of surgical forceps for abdominoscope the most according to claim 1, it is special
Levying and be, described pressure apparatus also includes spring constraint bolt and regulation bolt, described spring constraint bolt
Including key and the bolt head being arranged at key one end, the diameter of described key is less than the internal diameter of spring, bolt
The diameter of head is more than the internal diameter of spring, and spring housing is contained on key and extend out to key and is not provided with the first end of bolt
Outside and contact force measurement apparatus, described regulation bolt screws in the spiral shell arranged to trocar sheath fixing device
Hole contact bolt head are to adjust the decrement of spring.
The fatigue property test device of a kind of surgical forceps for abdominoscope the most according to claim 1, it is special
Levying and be, described reciprocator includes motor, motor supporting base, sheave and connecting rod, described
Motor is fixed on motor supporting base, and sheave is installed in the drive shaft of motor and is driven rotation by motor,
One end of connecting rod is fixed in the groove of sheave, and the other end is fixed in drawhead fixing device.
The fatigue property test device of a kind of surgical forceps for abdominoscope the most according to claim 1, it is special
Levying and be, also include controlling display unit, described control display unit is communicatively connected to reciprocal fortune respectively
Dynamic device and force measuring device, and control start and stop and the survey of display force measuring device of reciprocator
Numerical quantity.
The fatigue property test device of a kind of surgical forceps for abdominoscope the most according to claim 1, it is special
Levying and be, also include base plate, described reciprocator, drawhead fixing device, trocar sheath are fixed
Device, pressure apparatus and force measuring device are both secured on base plate.
The fatigue property test device of a kind of surgical forceps for abdominoscope the most according to claim 4, it is special
Levy and be, the described regulation bolt maximum compression length to spring constraint bolt, it extend out to bolt less than spring
External greatest length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610513824.8A CN105954129B (en) | 2016-07-04 | 2016-07-04 | A kind of fatigue property test device of surgical forceps for abdominoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610513824.8A CN105954129B (en) | 2016-07-04 | 2016-07-04 | A kind of fatigue property test device of surgical forceps for abdominoscope |
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| Publication Number | Publication Date |
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| CN105954129A true CN105954129A (en) | 2016-09-21 |
| CN105954129B CN105954129B (en) | 2018-11-20 |
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| CN201610513824.8A Active CN105954129B (en) | 2016-07-04 | 2016-07-04 | A kind of fatigue property test device of surgical forceps for abdominoscope |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109959505A (en) * | 2019-04-10 | 2019-07-02 | 浙江科惠医疗器械股份有限公司 | A kind of endurance testing device and life-span test system |
| CN110274838A (en) * | 2019-06-24 | 2019-09-24 | 珠海视新医用科技有限公司 | A kind of endoscope bending fatigue strength tester and test method |
| CN112147005A (en) * | 2020-09-15 | 2020-12-29 | 苏州法兰克曼医疗器械有限公司 | Channel testing machine and method for endoscopic surgery |
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| CN112147005B (en) * | 2020-09-15 | 2024-04-26 | 苏州法兰克曼医疗器械有限公司 | Channel testing machine and method for endoscopic surgery |
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| Publication number | Publication date |
|---|---|
| CN105954129B (en) | 2018-11-20 |
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