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CN105954129B - A kind of fatigue property test device of surgical forceps for abdominoscope - Google Patents

A kind of fatigue property test device of surgical forceps for abdominoscope Download PDF

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Publication number
CN105954129B
CN105954129B CN201610513824.8A CN201610513824A CN105954129B CN 105954129 B CN105954129 B CN 105954129B CN 201610513824 A CN201610513824 A CN 201610513824A CN 105954129 B CN105954129 B CN 105954129B
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China
Prior art keywords
fixed
spring
guide post
drawhead
abdominoscope
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CN105954129A (en
Inventor
李益民
赵志刚
鄢家杰
唐军
肖强
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Hunan Hande Minimally Invasive Medical Technology Co ltd
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Hunan Hande Minimally Invasive Medical Technology Co ltd
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/32Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
    • G01N3/34Investigating 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 kind of fatigue property test devices of surgical forceps for abdominoscope, it is characterized in that, including reciprocator, the fixed device of drawhead, housing pipe fixing device, pressure apparatus and force measuring device, the outer tube of the claw beam of surgical forceps for abdominoscope and the drawhead of claw beam are respectively arranged on housing pipe fixing device and the fixed device of drawhead.The technical effects of the invention are that reasonable in design, structure is simple, can effectively reduce testing cost and subjective factor bring is avoided to influence, test speed is fast and result is accurate, and the safety and validity of product is effectively guaranteed.

Description

A kind of fatigue property test device of surgical forceps for abdominoscope
Technical field
The present invention relates to a kind of fatigue property test devices of surgical forceps for abdominoscope.
Background technique
With the fast development and popularization and application of laparoscopic surgery technology, surgical forceps for abdominoscope makees a kind of medical hand of indispensability Art instrument, application are also more and more extensive.Existing surgical forceps with cavity mirror model is numerous, complex manufacturing technology, and product itself Concerning the success or failure for setting about art, usual product needs to survey the project for influencing its safety and validity before factory quality Examination, wherein the test of fatigue behaviour is extremely crucial one.It is mostly to carry out instead by manpower to the measurement of fatigue behaviour at present Multiple multiple imitative use, judgment model is subjective and the size of not energetic power.Therefore, a kind of pair of laparoscope hand is developed The fatigue property test device of art pincers is necessary.
Summary of the invention
There is no corresponding fatigue property test device to solve current surgical forceps for abdominoscope, leads to not fast and accurately To surgical forceps for abdominoscope carry out fatigue behaviour detection the technical issues of, the present invention provide a kind of structure it is simple, it is at low cost, test speed Degree is fast and result is accurate, and the fatigue behaviour for the surgical forceps for abdominoscope that the safety of product, validity can be made reliably to be guaranteed is surveyed Trial assembly is set.
In order to achieve the above technical purposes, the technical scheme is that, a kind of fatigue behaviour of surgical forceps for abdominoscope is surveyed Trial assembly is set, including the fixed device of reciprocator, drawhead, housing pipe fixing device, pressure apparatus and force measuring device, abdomen The outer tube of the claw beam of surgical forceps with cavity mirror and the drawhead of claw beam are respectively arranged at housing pipe fixing device and drawhead is fixed On device, the fixed device of the reciprocator connecting rod head simultaneously drives the fixed device of drawhead reciprocating, with Claw beam head is set to make the relative motion for stretching and shrinking relative to claw beam body, the pressure apparatus includes spring, the bullet Spring is set between housing pipe fixing device and force measuring device and externally sleeve fixing device imposes and claw beam head draw direction Opposite pressure, force measuring device detection spring is exerted pressure namely housing pipe fixing device surveys the fatigue of load added by outer tube Try power.
A kind of fatigue property test device of surgical forceps for abdominoscope, the fixed device of the drawhead includes leading The guide post fixed block and sliding block of column, groove-like, one end of the guide post are fixed on guide post fixed block, are opened on the sliding block There are the slider throughbores passed through for guide post and hung on guide post by slider throughbores, sliding block is equipped with the pull rod for steady brace head Head slot and in being fixed on drawhead, reciprocator connection sliding block simultaneously drives sliding block to move along guide post.
A kind of fatigue property test device of surgical forceps for abdominoscope, the housing pipe fixing device includes card slot Body, the card slot body are provided on card slot body in being equipped with the housing tube seat of fixed jacket pipe and being fixed on outer tube for leading Card slot body through-hole that column passes through simultaneously is hung on guide post and a side contacts guide post fixed block, card slot body and sliding block by card slot body through-hole It is respectively arranged on two sides opposite in guide post fixed block.
A kind of fatigue property test device of surgical forceps for abdominoscope, the pressure apparatus further include spring constraint Bolt and adjusting bolt, the spring constraint bolt includes body and the bolt head for being set to body one end, the diameter of the body Less than the internal diameter of spring, the diameter of bolt head is greater than the internal diameter of spring, and spring pocket, which is mounted on body and extend out to body, is not provided with bolt Except first end and contact force measuring device, the adjusting bolt is screwed in the screw hole being arranged on housing pipe fixing device and connect Bolt head is touched to adjust the decrement of spring.
A kind of fatigue property test device of the surgical forceps for abdominoscope, the reciprocator include motor, Motor supporting base, sheave and connecting rod, the motor are fixed on motor supporting base, and sheave is installed in the drive shaft of motor simultaneously Rotation is driven by motor, one end of connecting rod is fixed in the groove of sheave, and the other end is fixed on the fixed device of drawhead.
A kind of fatigue property test device of surgical forceps for abdominoscope further includes control display unit, the control Display unit processed is communicatively connected to reciprocator and force measuring device respectively, and control reciprocator start and stop and Show the measurement numerical value of force measuring device.
A kind of fatigue property test device of surgical forceps for abdominoscope, further includes bottom plate, the reciprocating motion dress It sets, the fixed device of drawhead, housing pipe fixing device, pressure apparatus and force measuring device are both secured on bottom plate.
A kind of fatigue property test device of surgical forceps for abdominoscope, the adjusting bolt is to spring constraint bolt Maximum compression length, the maximum length being extend out to less than spring outside body.
The technical effects of the invention are that reasonable in design, structure is simple, can effectively reduce testing cost and keep away Exempt from the influence of subjective factor bring, test speed is fast and result is accurate, and the safety and validity of product is effectively guaranteed.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention;
Fig. 2 is the structural schematic diagram of the other side of the invention;.
Fig. 3 is cross-sectional view of the invention;
Wherein 1 is control display unit, and 2 be bottom plate, and 3 be pressure measurement cell, and 4 be motor, and 5 be motor fixing seat, and 6 are Sheave, 7 be connecting rod, and 8 be guide post fixed block, and 9 be guide post, and 10 be sliding block, and 11 be card slot body, and 12 be claw beam, and 121 be pull rod, 122 It is outer tube for claw beam fixing seat, 123,13 be spring, and 14 be spring constraint bolt, and 15 be adjusting bolt.
Specific embodiment
Referring to Fig. 1-3, the present embodiment includes reciprocator, drawhead fixed device, housing pipe fixing device, pressure It is solid that device and force measuring device, the outer tube of the claw beam of surgical forceps for abdominoscope and the drawhead of claw beam are respectively arranged at outer tube Determine on device and the fixed device of drawhead, the fixed device of reciprocator connecting rod head simultaneously drives the fixed device of drawhead to make It moves back and forth, so that claw beam head makees the relative motion for stretching and shrinking relative to claw beam body, pressure apparatus includes spring, spring It is set between housing pipe fixing device and force measuring device and externally sleeve fixing device imposes and claw beam head draw direction phase Anti- pressure, force measuring device detection spring is exerted pressure namely housing pipe fixing device is to the testing fatigue of load added by outer tube Power.
In order to realize fixation and driving to claw beam head, the fixed device of drawhead include guide post, groove-like guide post fix Block and sliding block, one end of guide post are fixed on guide post fixed block, and the slider throughbores passed through for guide post are provided on sliding block and pass through cunning Block through-hole is hung on guide post, and sliding block is equipped with the drawhead slot for steady brace head and drawhead is fixed on to interior, reciprocal fortune Dynamic device connection sliding block simultaneously drives sliding block to move along guide post.
For the grips pincers body of rod, housing pipe fixing device includes card slot body, and card slot body is equipped with the housing of fixed jacket pipe Tube seat and in being fixed on outer tube is provided with the card slot body through-hole passed through for guide post and is hung over by card slot body through-hole on card slot body On guide post and a side contacts guide post fixed block, card slot body and sliding block are respectively arranged on two sides opposite in guide post fixed block.
In order to adjust accordingly to pressure, pressure apparatus further includes spring constraint bolt and adjusting bolt, spring constraint bolt Including body and the bolt head for being set to body one end, the diameter of body is less than the internal diameter of spring, and the diameter of bolt head is greater than spring Internal diameter, spring pocket, which is mounted on body and extend out to body, is not provided with except the first end of bolt and contacts force measuring device, adjusts bolt Screw hole and contact bolt head to being arranged on housing pipe fixing device are screwed in adjust the decrement of spring.In the present embodiment, it leads Column fixed block is U-shaped, and the side of card slot body is close on the side inner wall of guide post fixed block.The lower part of card slot body is equipped with for holding Receive the empty slot of spring constraint bolt and spring.The opening of empty slot is towards force measuring device, after spring is placed in empty slot, directly contacts Force measuring device.The other end of empty slot is equipped with screw hole, and guide post fixed block is equipped with bolt hole corresponding with screwhole position, adjusts Section bolt is screwed in into screw hole again by bolt hole, in order to adjust pressure at any time.According to different needs, can not also set Through-hole first adjusts adjusting bolt every time and starts to test again.Empty slot can not also be set, spring is made directly to pass through pressure compaction in card slot On body and force measuring device.
The reciprocator of the present embodiment includes motor, motor supporting base, sheave and connecting rod, and motor is fixed on motor branch It supportting on seat, sheave is installed in the drive shaft of motor and is driven by motor rotation, and one end of connecting rod is fixed in the groove of sheave, The other end is fixed on the fixed device of drawhead.And according to the needs of actual conditions, can also using as motor-driven screw rod, Cylinder etc. is used as reciprocator.
For the ease of real-time control and observation test case, the present embodiment further includes control display unit, and control display is single Member is communicatively connected to reciprocator and force measuring device respectively, and controls the start and stop and display power survey of reciprocator Measure the measurement numerical value of device.
For unified fixed device, easy to remove, the present embodiment further includes bottom plate, and reciprocator, drawhead are fixed Device, housing pipe fixing device, pressure apparatus, force measuring device and control display unit are both secured on bottom plate.
In order to make spring play due force effect, bolt is adjusted to the maximum compression length of spring constraint bolt, is less than Spring extend out to the maximum length outside body.Be in this way in order to avoid spring constraint bolt both ends respectively directly contact card slot body and Housing pipe fixing device, effect should be had by losing spring.
The control display unit of the present embodiment is used to control the number and pressure measurement list of decelerating motor revolving speed and rotation The display of first force feedback, motor are mounted on motor supporting base and are fixed on bottom plate.It is machined in card slot body and sliding block symmetrical Guide pillar hole, guide post passes through the corresponding guide pillar hole of the two and both ends is fixed on guide post fixed block, to make card slot body and sliding block It can be slid laterally along guide rail.It is provided with the card slot of fixed claw beam fixing seat on card slot body, and card slot length and claw beam fixing seat Length is consistent, and the card slot for placing pull rod bulb is provided on sliding block, then passes through slide block movement and makes pull rod and outer Casing relatively moves, to control the opening and closing degree of binding clip.Sheave, connecting rod, guide post fixed block, guide post, sliding block composition are bent Handle slide block mechanism is driven by motor realizes its movement, and sliding block is when stretching and withdrawing two extreme positions, driving link slot The corresponding two positions of crank are on same straight line on wheel, so the mechanism is without the characteristic suddenly returned, sliding block is in stroke and return It is slowly to move along a straight line, then the opening and closing speed of binding clip is consistent, to simulate actual operational circumstances in operation.Spring It is inserted in, is then charged on card slot body in corresponding hole from the head end of spring constraint bolt, the end of spring should be pressed in assembly at this time On the surface of pressure measuring module, but spring constraint bolt must not stretch out spring end and contact with pressure measuring module.Adjust bolt The end of spring constraint bolt, the pine that then spring is contacted with pressure sensitive unit are withstood by the screw hole screwed on card slot body Tight degree is adjusted by adjusting bolt, and the reaction force of spring makes card slot body that can only carry out limited sliding along guide rail, In test, card slot body will not contact always with pressure sensitive unit.
When carrying out the fatigue property test of surgical clamp, first the end of claw beam seat and pull rod is caught on card slot body and sliding block In corresponding slot, it then is parked in maximum stroke by can be manually rotated sheave, i.e., crank when binding clip opens maximum angle Position, rotation adjust bolt and set the pulling force to be applied, and the numerical value of pulling force is shown on control display unit, while being controlled Setting needs the number recycled that can be in circulation to the weakness such as surgical clamp pull rod and binding clip link mechanism on display unit Pulling force effect under the mechanical properties such as intensity, rigidity measure and assess.The present apparatus can effectively reduce testing cost and Subjective factor bring is avoided to influence, test speed is fast and result is accurate, ensure that the safety and validity of product.
The present invention is not limited to the above-described embodiments, makees any variation no matter constituting in its shape or material, all to adopt It is designed with structure provided by the present invention, is all a kind of deformation of the invention, is considered as within that scope of the present invention.

Claims (6)

1. a kind of fatigue property test device of surgical forceps for abdominoscope, which is characterized in that solid including reciprocator, drawhead Determine device, housing pipe fixing device, pressure apparatus and force measuring device, the outer tube and claw beam of the claw beam of surgical forceps for abdominoscope Drawhead be respectively arranged on the fixed device of housing pipe fixing device and drawhead, the reciprocator connecting rod The fixed device of head simultaneously drives the fixed device of drawhead reciprocating, so that claw beam head was stretched and shunk relative to claw beam body Relative motion, the pressure apparatus include spring, the spring be set to housing pipe fixing device and force measuring device it Between and externally sleeve fixing device impose the pressure opposite with claw beam head draw direction, force measuring device detection spring is exerted pressure Namely housing pipe fixing device is to the testing fatigue power of load added by outer tube;
The fixed device of the drawhead includes the guide post fixed block and sliding block of guide post, groove-like, and one end of the guide post is solid Due on guide post fixed block, being provided with the slider throughbores passed through for guide post on the sliding block and hang over guide post by slider throughbores On, sliding block is equipped with the drawhead slot for steady brace head and drawhead is fixed on to interior, reciprocator connection sliding block And sliding block is driven to move along guide post;
The housing pipe fixing device includes card slot body, and the card slot body is equipped with the housing tube seat of fixed jacket pipe and will In outer tube is fixed on, the card slot body through-hole passed through for guide post is provided on card slot body and hung on guide post by card slot body through-hole and One side contacts guide post fixed block, card slot body and sliding block are respectively arranged on two sides opposite in guide post fixed block.
2. a kind of fatigue property test device of surgical forceps for abdominoscope according to claim 1, which is characterized in that described Pressure apparatus further includes spring constraint bolt and adjusts bolt, and the spring constraint bolt includes body and is set to body one end Bolt head, the diameter of the body are less than the internal diameter of spring, and the diameter of bolt head is greater than the internal diameter of spring, and spring pocket is on body And extend out to body and be not provided with except the first end of bolt and contact force measuring device, the adjusting bolt, which is screwed in outer tube, to be fixed The screw hole and contact bolt head being arranged on device are to adjust the decrement of spring.
3. a kind of fatigue property test device of surgical forceps for abdominoscope according to claim 1, which is characterized in that described Reciprocator includes motor, motor supporting base, sheave and connecting rod, and the motor is fixed on motor supporting base, sheave It is installed in the drive shaft of motor and is driven by motor rotation, one end of connecting rod is fixed in the groove of sheave, and the other end is fixed On the fixed device of drawhead.
4. a kind of fatigue property test device of surgical forceps for abdominoscope according to claim 1, which is characterized in that further include Display unit is controlled, the control display unit is communicatively connected to reciprocator and force measuring device respectively, and controls The start and stop of reciprocator and the measurement numerical value for showing force measuring device.
5. a kind of fatigue property test device of surgical forceps for abdominoscope according to claim 1, which is characterized in that further include Bottom plate, the fixed device of the reciprocator, drawhead, housing pipe fixing device, pressure apparatus and force measuring device are equal It is fixed on bottom plate.
6. a kind of fatigue property test device of surgical forceps for abdominoscope according to claim 2, which is characterized in that described Adjust maximum compression length of the bolt to spring constraint bolt, the maximum length being extend out to outside body less than spring.
CN201610513824.8A 2016-07-04 2016-07-04 A kind of fatigue property test device of surgical forceps for abdominoscope Active CN105954129B (en)

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* Cited by examiner, † Cited by third party
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CN109959505B (en) * 2019-04-10 2021-04-13 浙江科惠医疗器械股份有限公司 Life test device and life test system
CN110274838B (en) * 2019-06-24 2024-08-30 珠海视新医用科技有限公司 Endoscope bending fatigue strength tester and testing method
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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JPS5872030A (en) * 1981-10-26 1983-04-28 Ricoh Co Ltd Fatigue tester of rubber material
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