CN201974344U

CN201974344U - Artificial oral circulation occluder

Info

Publication number: CN201974344U
Application number: CN2010202979930U
Authority: CN
Inventors: 孙皎; 刘贤; 陈铭
Original assignee: Ninth Peoples Hospital Shanghai Jiaotong University School of Medicine
Current assignee: Ninth Peoples Hospital Shanghai Jiaotong University School of Medicine
Priority date: 2010-08-19
Filing date: 2010-08-19
Publication date: 2011-09-14
Anticipated expiration: 2020-08-19

Abstract

The utility model discloses an artificial oral circulation occluder which comprises a control counting part and a mechanical occlusion device. The mechanical occlusion device is composed of a force application part, a sample chamber and a base. The force application part comprises an electromagnetic sensor, an electromagnetic core, an electromagnet trigger point, an impact head and a supporting column. The electromagnet trigger point is provided at the bottom of the electromagnetic core. One end of the supporting column is fixedly connected with the bottom of the electromagnetic core, and the other end is movably connected with the upper part of the base. The base is internally provided with an adjustable bolt and the sample chamber. The sample chamber is provided above the adjustable bolt and is internally provided with a container. The impact head is just provided in the container and has a height which is larger than or equal with that of the container. An upper end of the impact head is provided with a seal cover. The electromagnet trigger point just contacts with the seal cover. The artificial oral circulation occluder has the following advantages: simple structure, high convenience in operation, capability of analyzing the electrolyte liquid for experiment, accurate test result, capability of being widely used for test evaluation of various dental restoration materials, etc.

Description

Artificial oral cavity circulation occluder

[technical field]

The utility model relates to a kind of medicine equipment, the experimental simulation instrument that especially a kind of fatigue strength to dental prosthetic material, fatigue lifetime, wear resistance, decay resistance are estimated.

[background technology]

Clinical observation and two kinds of methods of laboratory simulation are generally adopted in the abrasion resistance evaluation of dental prosthetic material.Because the clinical follow method cycle is long, expense is high, be difficult to standardization, chemical constitution is to the influence of material in temperature variation in the oral cavity and the food during to the mechanical wear of material production, feed when simulating teeth chewing better, and the scholar has designed multi-form artificial oral cavity analog machine up to now.Advanced relatively is the artificial oral cavity of Programmable Multifunction machine at present, mainly by 8 sample holder, and the stepper motor of 2 computer controls, 2 electronic water baths and 1 control box are formed.2 stepper motors drive the vertical movement of oral cavity machine simulation central occlusion and the tangential movement of nearly middle interlock far away respectively; 2 electronic water baths provide the hot and cold water circulation; Test macro is handled instrument, optical sensor manipulation instrument and computerized control system 4 parts by three-dimensional laser scanner, motor and is formed.After this device fundamental purpose is to simulate oral cavity interlock and temperature variation, observe the various changes of properties of material, especially Biao Mian wearing and tearing etc., but can not test recovery and analysis with liquid, Substance Properties that material is discharged in experimentation and quality can not be clear and definite.

Figure 3 shows that oral cavity occluder technology exploded view commonly used in the prior art, form by control segment count and mechanical snap device, wherein, 10a is the electromagnet trigger point, and 17a is a steady arm, and 11a is an impact head, 13a is a pedestal, and 19a is the test specimen cavity, and 16a is an adjustable bolt.Do the time spent, electromagnet trigger point 10a acts on impact head 11a, and impact head 11a impact test piece, test specimen directly place test specimen cavity 19a, is in an open relatively environment, and electrolytic liquid can't reclaim like this.

Oral environment is relatively complicated, only simulates mechanical understressing to simulate oral environment fully.Simultaneously, the human teeth is occluding with certain interval, every day, average interlock number of times was constant relatively, single inconstant mechanical stress factors can not the various variations of reaction material in oral environment, open electrolyte solution contact level is wide excessively, experimental precision is poor, can't reclaim analysis, brings difficulty for the evaluation of material and the understanding of performance.

[utility model content]

The purpose of this utility model be to provide a kind of analyze material composition in the liquid separate out and then identify artificial oral cavity circulation occluder with the recyclable liquid of concentration analysis.

For realizing above purpose, the utility model discloses following technical scheme: a kind of artificial oral cavity circulation occluder, comprise control segment count and mechanical snap device, described control segment count produces pulsed power supplies, by Switching Power Supply, auxiliary reclay, the time relay, transistored counter, counter-controller and control transformer are formed, described mechanical snap device is by the position of having an effect, test specimen cavity and pedestal are formed, the described position of having an effect comprises electromagnetic inductor, electromagnetic core, the electromagnet trigger point, impact head and steady arm, described electromagnet trigger point is arranged on the electromagnetic core bottom, steady arm one end is fixedlyed connected with the electromagnetic core bottom, the other end and pedestal top flexibly connect, adjustable bolt and test specimen cavity are set in the described pedestal, described test specimen cavity is above adjustable bolt, impact head is positioned at test specimen cavity central authorities just, in the described test specimen cavity container is set, impact head places in the container just, the height of impact head is more than or equal to the height of container, the impact head upper end is provided with a gland bonnet, and the electromagnet trigger point contacts just with gland bonnet.

Pressure when impacting in order to reduce container is provided with cushion pad above adjustable bolt.

For fixed container better, in the described test specimen cavity retainer plate is set.

Advantage of the present utility model is: mechanical snap device and control segment count combine, and control segment count Control current has or not or size etc., produces pulsed power supplies and excites the electromagnetic type engaging device.The control segment count is that common common electronic engineering is used, mechanical snap partly installs the impact head of band tooth additional, and install the container of laying material and electrolytic liquid additional, and splashing to container seals, maintenance prevents container inclination and content, utilize rubber buffer to prevent the container fragmentation, simulate the human body oral environment as far as possible.

This device can not only well be simulated human teeth's bite stress, regulates the size of power, can also write down the interlock number of times, and recyclable experiment is simultaneously identified and concentration analysis with electrolytic liquid and then to the material composition of separating out.This device has with electrolytic liquid and then to the material composition of separating out to be identified and concentration analysis.It is simple, easy to operate that this device has an apparatus structure, and recyclable experiment advantage such as analyzes with electrolytic liquid, can be widely used in the experimental evaluation of various dental prosthetic compaction materials.

[description of drawings]

Fig. 1 is control segment count synoptic diagram;

Fig. 2 is a mechanical snap device synoptic diagram;

Label shown in the figure:

1---Switching Power Supply; 2---auxiliary reclay; 3---the time relay;

4---transistored counter; 5---counter-controller; 6---control transformer;

7---the mechanical snap device; 8---electromagnetic inductor; 9---electromagnetic core;

10---the electromagnet trigger point; 11---impact head; 12---container;

13---pedestal; 14---retainer plate; 15---cushion pad;

16---adjustable bolt; 17---steady arm; 18---gland bonnet;

19---the test specimen cavity.

Fig. 3 is the engaging device exploded view of prior art.

Label shown in the figure:

10a---electromagnet trigger point; 11a---impact head; 13a---pedestal;

16a---adjustable bolt; 17a---steady arm; 19a---test specimen cavity.

[embodiment]

Below in conjunction with accompanying drawing the utility model is elaborated, the effect of embodiment only is to explain and non-limiting the utility model.

As shown in Figure 1, the control segment count produces pulsed power supplies.Electric original paper all is fixed on the circuit board, Switching Power Supply 1 is connected on the auxiliary reclay 2, then time of arrival relay 3, again by transistored counter 4, by counter-controller 5, the control counting is provided with function again, requires electric current by control transformer 6 outputs at last, excitation electromagnetic mechanical engaging device 7 moves.

As shown shown in 2, described mechanical snap device is by the position of having an effect, test specimen cavity and pedestal are formed, the described position of having an effect comprises electromagnetic inductor 8, electromagnetic core 9, electromagnet trigger point 10, impact head 11 and steady arm 17, electromagnet trigger point 10 is arranged on electromagnetic core 9 bottoms, steady arm 17 1 ends are fixedlyed connected with electromagnetic core 9 bottoms, the other end and pedestal 13 tops flexibly connect, adjustable bolt 16 and test specimen cavity 19 are set in the described pedestal 13, described test specimen cavity 19 is above adjustable bolt 16, impact head 11 is positioned at test specimen cavity 19 central authorities just, one container 12 is set in the described test specimen cavity 19, and impact head 11 places in the container 12 just, and the height of impact head 11 is more than or equal to the height of container 12, impact head 11 upper ends are provided with a gland bonnet 18, and electromagnet trigger point 10 contacts just with gland bonnet 18.

Pressure when impacting in order to reduce container is provided with cushion pad 15 above adjustable bolt 16.

For fixed container better, in the described test specimen cavity 19 retainer plate 14 is set.

The pulsed electric current of control segment count output enters electromagnetic inductor 8, electromagnetic core 9 is sent actuating signal, the impact head 11 that electromagnet trigger point 10 is triggered impact the band teeth in container 12 according to the fixed frequency impact test piece, adjustable bolt 16 can be regulated the height of container 12, container 12 tops install gland bonnet 18 additional, prevent in the container 12 that liquid splashes come out and install entering of outer liquid.Alleviate the pressure that container impacts by cushion pad 15, increase the security of container.

During work, test specimen is positioned in the container of being fixed by retainer plate 14 12, by the 6 output signal power supplys of control transformer on the circuit board, to 7 excitations of electromagnetic mechanical engaging device, the electric current of control power supply output enters electromagnetic inductor 8, electromagnetic core 9 is sent actuating signal, make electromagnet trigger point 10 trigger criteria impact the impact head 11 of band tooth according to fixed frequency impact test piece 13.Excite electromagnetic mechanical engaging device output certain frequency and required shock load by the Electronic Control panel, the simulation tooth is tested, utilize this device can regulate frequency of impact and magnitude of load.

The above only is a preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.

Claims

1. artificial oral cavity circulation occluder, comprise control segment count and mechanical snap device, described control segment count produces pulsed power supplies, by Switching Power Supply, auxiliary reclay, the time relay, transistored counter, counter-controller and control transformer are formed, described mechanical snap device is by the position of having an effect, test specimen cavity and pedestal are formed, the described position of having an effect comprises electromagnetic inductor, electromagnetic core, the electromagnet trigger point, impact head and steady arm, described electromagnet trigger point is arranged on the electromagnetic core bottom, steady arm one end is fixedlyed connected with the electromagnetic core bottom, the other end and pedestal top flexibly connect, adjustable bolt and test specimen cavity are set in the described pedestal, described test specimen cavity is above adjustable bolt, impact head is positioned at test specimen cavity central authorities just, it is characterized in that, in the described test specimen cavity container is set, impact head places in the container just, the height of impact head is more than or equal to the height of container, the impact head upper end is provided with a gland bonnet, and the electromagnet trigger point contacts just with gland bonnet.

2. artificial oral cavity circulation occluder according to claim 1 is characterized in that, the adjustable bolt top is provided with cushion pad.

3. artificial oral cavity circulation occluder according to claim 1 is characterized in that, in the described test specimen cavity retainer plate is set.