CN203263364U

CN203263364U - Torsion detection overhanging wire and thrombelastogram instrument

Info

Publication number: CN203263364U
Application number: CN 201320125429
Authority: CN
Inventors: 金伟; 蓝县辉
Original assignee: ZHEJIANG SUPCON RESEARCH Co Ltd
Current assignee: Zhejiang Shengyu Medical Technology Co ltd
Priority date: 2013-03-19
Filing date: 2013-03-19
Publication date: 2013-11-06
Anticipated expiration: 2023-03-19

Abstract

A torsion detection overhanging wire comprises an overhanging wire joint, a torsion wire and loops, wherein the loops comprise a first loop and a second loop, which are respectively fixedly sleeved at two ends of the torsion wire; the overhanging wire joint is fixedly connected with anyone of the first and second loops; and the overhanging joint is vertical to the torsion wire. The thrombelastogram instrument comprises the torsion detection overhanging wire. The torsion detection overhanging wire provided by the utility mode does not rely on precise processing equipment, and is simple in structure, convenient to process, low in cost and high in yield.

Description

A kind of torsion detects dangle silk and thrombelastogram instrument

Technical field

This utility model relates to a kind of armarium, and particularly a kind of torsion detects and dangles silk and a kind ofly use the thrombelastogram instrument that torsion detects the silk that dangles.

Background technology

Thrombelastogram instrument (Thrombelastography, TEG) is a kind of analyser of monitoring coagulation process from whole dynamic process.The thrombelastogram instrument is widely used in the clinical guidance art and transfuses blood, perioperative (is a professional term for the processing procedure that needs the surgical operation disease, before comprising art, in art and the full period of postoperative) monitoring coagulation function, simultaneously be also that advanced country carries out the important tool that blood product is managed in the world, use this equipment in the blood transfusion guide.The thrombelastogram instrument can carry out the dynamic analysis of the processes such as thrombin activation, platelet aggregation, fibrinolysis.The ultimate principle of thrombelastogram instrument is: the test cup of Motor Drive carrying blood specimen (spends 45 minutes as 4) at a certain angle and the cycle (as 10 seconds) rotates, in case thrombosis, the metal probe that is placed in blood specimen detection cup is subject to the shearing stress effect of specimen, occurs rotating about thereupon.The turn of metal probe is converted into electric weight and gives the processor processing, just form coagulation curve by contactless angle turn sensor (as the inductance type angular transducer) induction.Above-mentioned metal probe hangs on the torsion silk that dangles, and in metal probe turn process, the torsion silk that dangles need to provide a kind of progressive torsional resistance, with the moment of torsion of opposing from metal probe.The silk that dangles plays to pivotal role in the thrombelastogram instrument, and the silk that dangles that uneven torque, torque coefficient are too large or too little all can not obtain correct coagulation curve.

The silk that dangles in thrombosis elastic force inspection plotting apparatus is made of the suspension joint of upper part and the torsion wire of lower part usually, and the suspension joint is fixed in fixed base, torsion wire lower end suspension sensing post.Sensing column diameter large (as: torsion wire diameter 10 times).For the concentric rate of guarantee to dangle silk and sensing post, the silk that dangles is with insertion sensing post centre bore, and the mode that adds the lock screw interlock connects.The torque sensor that is made of dangle silk and sensing post is the attitude of dangling.A test cup is put in sensing post lower end, contains a certain amount of testing sample in cup, and the cylinder lower end is immersed sample (liquid state) and do not contacted with wall of cup or a cup end.When driving mechanism makes test cup around the sensing post when (as: 4 degree 45 minutes) periodically rotate (as: 10 seconds) at a certain angle, toughness due to sample, specimen will drive the sensing post and rotate, at this moment, the torsion wire that is hanging the sensing post need to provide progressive resistance a kind of suitable size, uniform to come the moment of torsion of self-sensing post with opposing.By adding the non-contact rotational angle detector, the resiliency characteristics of sample can be detected.Can find out from testing process, the torsion silk that dangles plays vital effect, adopts even, the stable silk that dangles of torsion can obtain stable detection curve.

The function of torsion wire has determined its diameter unsuitable excessive (as: 0.2mm), and for ease of assembly, the diameter of its lower end sensing post centre bore also needs same other size of level, and needs to guarantee higher concentric rate.This brings difficulty for undoubtedly the processing of sensing post.Also there is similar problem in the torsion wire other end with being connected of suspension joint.A feasible solution is the diameter that increases torsion wire two ends and sensing post and suspension dovetail connector part.

Traditional torsion wire processing method adopts the larger tungsten filament (as 0.6mm) of diameter, by the tungsten filament mid portion being adopted the technique of cylindrical grinder grinding, makes torsion wire mid portion diameter reach requirement (as: 0.2mm).

As seen, traditional silk that dangles is made of suspension joint and torsion wire two parts, and this formation and processing method thereof of dangling silk has following shortcoming:

1, high to the process equipment dependency.Because the diameter of tungsten filament to be processed is less, therefore very high requirement has been proposed the fineness of process equipment, precision and the stability of process equipment is largely depended in the processing success or failure.

2, yields is low.The course of processing easily causes torsion wire mid portion radial diameter inhomogeneous.

3, processing cost is high.The retrofit equipment manufacturing cost is high, and lower yield rate causes processing cost high.

The utility model content

This utility model is for the prior art above shortcomings, provides a kind of torsion to detect the silk that dangles, and it does not rely on precise machining equipment, simple in structure, and is easy to process, with low cost, yield rate is high.

This utility model provides a kind of thrombelastogram instrument for the prior art above shortcomings, uses torsion provided by the utility model and detects the silk that dangles, and effectively reduces equipment cost.

This utility model is achieved through the following technical solutions:

A kind of torsion detects the silk that dangles, comprise: suspension joint, torsion wire and the collar, the collar comprises first collar and second collar, and first collar and second collar are fixedly sleeved at the two ends of torsion wire respectively, and suspension joint and first collar are fixedly connected with any one in second collar;

Wherein, the suspension joint is vertical with torsion wire.

Better, the suspension joint comprises a centre bore, first collar or second collar are connected to by binding agent and realize in centre bore being fixedly connected with the suspension joint.

Better, the outer end of the outer end of suspension joint and connected first collar or second collar flushes.

Better, first collar or second collar are fixed on the two ends of torsion wire by binding agent.

Better, the two ends of torsion wire flush with the outer end of first collar and second collar respectively.

A kind of thrombelastogram instrument comprises that above-mentioned torsion detects the silk that dangles.

Description of drawings

Fig. 1 is the side view that a kind of torsion of this utility model detects the silk that dangles;

Fig. 2 is the part-structure schematic diagram that a kind of torsion of this utility model detects the silk that dangles;

Fig. 3 is the side view that a kind of torsion of this utility model detects the suspension joint of the silk that dangles;

Fig. 4 is that a kind of torsion of this utility model detects dangle silk and a traditional error correlation curve figure who dangles thread.

The specific embodiment

Below in conjunction with embodiment, this utility model is elaborated, the present embodiment is implemented under take technical solutions of the utility model as prerequisite, has provided detailed embodiment, but protection domain of the present utility model is not limited to following embodiment.

Please refer to Fig. 1, a kind of torsion detects the silk that dangles, comprise: suspension joint 1, torsion wire 2, first collar 3 and second collar 4, first collar 3 and second collar 4 are fixedly connected on respectively the two ends of torsion wire 2, suspension joint 1 and first collar 3 are fixedly connected with any one in second collar 4, for example with the second collar 4 is fixedly connected with in the present embodiment, and suspension joint 1 is vertical with torsion wire 2.

Particularly, suspension joint 1 comprises a centre bore 3, and as shown in Figure 3, second collar 4 is fixedly connected with suspension joint 1 by being fixedly attached to the interior realization of centre bore 5.And the outer end of the outer end of suspension joint 1 and second collar 4 flushes, and the two ends of torsion wire 2 flush with the outer end of first collar 3 and second collar 4 respectively.

Please refer to Fig. 1 to Fig. 3, it is as follows that a kind of torsion for the thrombelastogram instrument of the present utility model detects the silk making flow process of dangling:

Prepare suspension joint 1, torsion wire 2, first collar 3, second collar 4, and parts are carried out polishing without burr processing, cleaning treatment.

First collar 3, second collar 4 are fixed in torsion wire 1 two ends.In this operation, at first be equipped with AB glue, get 0.5ml ~ 2ml A part and 0.5ml ~ 2ml B part, both mixing are mixed thoroughly (both ratios can be allocated according to the actual requirements, and the present embodiment does not limit at this); Again torsion wire 2 two ends are coated the AB glue after mixing thoroughly, notice that the length of gluing part should not surpass the length of first collar 3 and second collar 4, otherwise AB glue that can residual solidified on torsion wire 2 after heating affects the torsion wire performance; Then, the two ends that first collar 3, second collar 4 are inserted in torsion wire 2 are noted, the outer end that need make first collar 3, second collar 4 flushes with the torsion wire outer end, in addition, should clean the remaining AB glue on torsion wire 2 and first collar 3, second collar 4; At last, the band collar torsion wire that previous step is handled well was placed in hot plate, with 100 ℃ ~ 150 ℃ heating of constant temperature 30 ~ 60 minutes.Note, in order to guarantee the glue effectiveness, begin before heating from mixing AB glue, whole operating process should be over 10 minutes.

Torsion wire after heating is naturally cooled to room temperature.

Torsion wire obtained in the previous step is fixed on suspension joint 1.In this operation, at first be equipped with AB glue, get 0.5ml ~ 2ml A part and 0.5ml ~ 2ml B part, both mixing are mixed thoroughly (both ratios can be allocated according to the actual requirements, and the present embodiment does not limit at this); Choose again an end of torsion wire wantonly, for example be fixed with an end of the torsion wire of second collar 4, second collar 4 is coated AB glue; Then, an end that torsion wire is scribbled AB glue inserts the centre bore 5 of suspension joint 1, and makes torsion wire 2 vertical with suspension joint 1, cleaning torsion wire 2 and the surperficial remaining AB glue of suspension joint 1; At last, torsion wire 2 and the suspension joint 1 of handling well is placed in hot plate, with 100 ℃ ~ 150 ℃ heating of constant temperature 30 ~ 60 minutes.Note, in order to guarantee the glue effectiveness, begin before heating from mixing AB glue, whole operating process should be over 10 minutes.

Torsion wire after heating is naturally cooled to room temperature.

Please refer to Fig. 4, this utility model provides a kind of thrombelastogram instrument that has adopted above-mentioned torsion to detect to dangle silk and a traditional error correlation curve figure who dangles thread.Because both measurement data are very approaching, therefore can only see a curve that raises up, i.e. measurement result curve in Fig. 4.And the line at the 0mm place in figure namely calculates both curve of error can be found out, its error maintains the 0mm left and right substantially, and is very close.

Form with traditional silk that dangles and processing method is compared, this utility model has following outstanding advantage:

1, do not rely on precise machining equipment.Torsion in this utility model dangles has increased the collar in a building block, thereby does not need the precise machining equipment can the good silk that dangles of processability.

2, processing method is simple.Due to little according to lazyness to equipment, machining process is simple.

3, the processed finished products rate is high.

4, processing cost is low.

Above disclosed be only the application's a specific embodiment, but the application is not limited thereto, the changes that any person skilled in the art can think of all should drop in the application's protection domain.

Claims

1. a torsion detects the silk that dangles, it is characterized in that, comprise: suspension joint, torsion wire and the collar, the described collar comprises first collar and second collar, described first collar and described second collar are fixedly sleeved at the two ends of described torsion wire respectively, and described suspension joint and described first collar are fixedly connected with any one in described second collar;

Wherein, described suspension joint is vertical with described torsion wire.

2. torsion as claimed in claim 1 detects the silk that dangles, and it is characterized in that, described suspension joint comprises a centre bore, and described first collar or described second collar are connected to by binding agent and realize in described centre bore being fixedly connected with described suspension joint.

3. torsion as claimed in claim 2 detects the silk that dangles, and it is characterized in that, the outer end of the outer end of described suspension joint and connected described first collar or described second collar flushes.

4. torsion as claimed in claim 1 detects the silk that dangles, and it is characterized in that, described first collar or described second collar are fixed on the two ends of described torsion wire by binding agent.

5. torsion as claimed in claim 4 detects the silk that dangles, and it is characterized in that, the two ends of described torsion wire flush with the outer end of described first collar and described second collar respectively.

6. a thrombelastogram instrument, is characterized in that, comprises that torsion as claimed in claim 1 detects the silk that dangles.