CN105147396A - Reciprocating propulsion module for DSA simulating body - Google Patents
Reciprocating propulsion module for DSA simulating body Download PDFInfo
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- CN105147396A CN105147396A CN201510638483.2A CN201510638483A CN105147396A CN 105147396 A CN105147396 A CN 105147396A CN 201510638483 A CN201510638483 A CN 201510638483A CN 105147396 A CN105147396 A CN 105147396A
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Abstract
The invention relates to the field of angiography, and discloses a reciprocating propulsion module for a DSA simulating body. Two side plates are fixed to the two sides of a base plate, a sliding plate is supported over the base plate, and two side face protrusions of the sliding plate are connected with the side walls of the two side plates in an overlapped mode respectively, extend out of the side walls of the two side plates and are capable of moving horizontally; an air inlet is located in the end of each side plate, and the two ends of each air inlet are communicated with an air bag and an air collection cavity respectively; one end of a pneumatic mechanism and the inner wall of the corresponding air collection cavity are sealed in a sliding mode, the other end of the pneumatic mechanism makes effective contact with the corresponding side face protrusion of the sliding plate, the other side of each side face protrusion makes effective contact with a reset mechanism, and each reset mechanism is fixed in a baffle in front of the corresponding side face protrusion; a limiting mechanism is fixed in each side plate, when air pressure in the air collection cavities is increased to push the pneumatic mechanisms to move forwards to the limiting positions, the limiting mechanisms fix the corresponding pneumatic mechanisms on the limiting positions, and when the air pressure in the air collection cavities is increased to eliminate the limiting fixation of the limiting mechanisms to the corresponding pneumatic mechanisms, the reset mechanism makes the corresponding pneumatic mechanisms reset. According to the propulsion module, artificial close-table operation is not needed, and reset can be achieved.
Description
Technical field
The present invention relates to angiography field, particularly a kind of reciprocal propelling module for DSA die body.
Background technology
Digital subtraction angiography (DigitalSubtractionAngiography, DSA) is the angiographic method being carried out associated image by electronic computer, is to be applied to clinical a kind of x-ray Examined effect.In order to ensure the performance of digital subtraction angiography equipment, guarantee the reliable of check result, hospital and armarium supervision department need regularly to detect indexs such as the simulated blood vessel minimum dimension of machine, spatial resolution, Low contrast resolution, contrast are linear with detection die body, see whether index changes, description or national standard requirement can be met.
Detecting die body is generally the simulation human vas made with materials such as PMMA, fine copper, fine aluminiums.During detection, die body will be measured by the working condition of actual clinical diagnosis, will under X-ray exposure condition mobile aluminum strip, allow die body on pedestal at the uniform velocity by roentgen radiation x district, with the situation of simulate blood at intravascular flow, thus observe subtracting the indexs such as shadow effect, resolving power and whether meeting related request of tested equipment.
In actual use, DSA die body often needs to test back and forth, in early days, medical measurement department or other detection departments mostly need testing person's close-table and artificial forward operation from the DSA blood vessel calibrating die body of external import, due to close-table operation, under the eyes, body, hands etc. of staff are all exposed to X-ray to ray sensitive part, all can accept the X-radiation exceeding normal dose at every turn, testing person's psychology is also exerted heavy pressures on; Commonplace is a kind of with the propeller of gas control mode work at present, namely by holding air bag, pipeline air pressure is delivered to die body by trachea and electric wire, complete the propelling to calibrating die body, this pattern body mode structure is simple, good stability, can make to do the operation of personnel's compartment simultaneously, but in practical operation, if need multi-group data be gathered, after each sliding panel advances, also need tester to enter indoor by die body reset, just can test afterwards next time, operate more loaded down with trivial details; Domestic also have some units to propose to utilize the wireless type of drive of motor, and can realize moving back and forth function, but the structure of this die body is more complicated, cost is higher, and simultaneously due to test environment restriction, wireless signal is easily disturbed and shields.
Summary of the invention
goal of the invention:for problems of the prior art, the invention provides a kind of reciprocal propelling module for DSA die body, this propelling module can be resetted without the need to artificial close-table operation.
technical scheme:the invention provides a kind of reciprocal propelling module for DSA die body, comprise sliding panel, base plate, two blocks of side plates and at least one group of air inlet, air bag, air collecting chamber, pneumatic mechanism, position-limit mechanism and resetting-mechanism; Described two blocks of side plates are separately fixed at the both sides of described base plate, and described sliding panel is supported on directly over described base plate, and side, the both sides projecting block of described sliding panel overlaps respectively and stretches out described two blocks of side plates and can along described two pieces of side plate horizontal shiftings; Described air inlet is positioned at the side end of described side plate, and one end of described air inlet is communicated with by trachea with described air bag, and the other end is communicated with described air collecting chamber; One end of described pneumatic mechanism and the inwall slipper seal of described air collecting chamber, the other end effectively contacts with projecting block side, described side, the opposite side of described side projecting block effectively contacts with described resetting-mechanism, and described resetting-mechanism is fixed in the baffle plate in projecting block front, described side; Described position-limit mechanism is fixed in described side plate, when the air pressure in described air collecting chamber increase to promote described pneumatic mechanism move forward to extreme position time, described pneumatic mechanism restriction can be fixed on this extreme position by described position-limit mechanism, when the air pressure in described air collecting chamber again increase to remove the restriction of described position-limit mechanism to described pneumatic mechanism fix time, described pneumatic mechanism can reset by described resetting-mechanism.
Further, described pneumatic mechanism is straight pin, the pin tail being positioned at the described straight pin of described air collecting chamber offers the pin-and-hole be communicated with described air collecting chamber, the shank sidewall of described straight pin is provided with stopper slot, be communicated with between described pin-and-hole with described stopper slot, the plunger of described straight pin effectively contacts with described resetting-mechanism.
Further, described position-limit mechanism is spacer pin, and described spacer pin is arranged perpendicular to described straight pin, and the plunger of described spacer pin is connected by spacer pin spring with between pin tail, slidingly contacts between the plunger of described spacer pin and the shank of described straight pin; When in described air collecting chamber without air pressure or air pressure less time, the plunger of described spacer pin is positioned at the front of described stopper slot, when the air pressure in described air collecting chamber increase to promote described straight pin move forward to extreme position time, the plunger of described spacer pin is stuck in described stopper slot, when the air pressure in described air collecting chamber again increase to the elastic force overcoming described spacer pin spring the plunger of described spacer pin is released described stopper slot time, described straight pin can reset by described resetting-mechanism.
Further, the described reciprocal propelling module for DSA die body also comprises relief chamber, and described relief chamber is communicated with the plunger of described spacer pin.
Preferably, described resetting-mechanism is back-moving spring.
operation principle and beneficial effect:the present invention is when original state, without gas in air collecting chamber, now pneumatic mechanism is positioned at the rearmost end of air collecting chamber, after pressing pressuring gasbag, air pressure in air collecting chamber increases gradually, along with the increase of air pressure, gas can promote pneumatic mechanism reach, pneumatic mechanism reach and then promotion side projecting block (sliding panel) reach, the reach compression resetting-mechanism of side projecting block, when side projecting block move to contact with baffle plate time pneumatic mechanism move to extreme position, now position-limit mechanism can by pneumatic mechanism restriction be fixed on this extreme position; Because the aluminum strip on sliding panel is exactly simulated blood vessel, while mobile sliding panel above aluminum strip X-ray irradiation, be also just equivalent to human vas and move below X-ray, and then can realize detecting the indices of simulated blood vessel; Owing to not being seal completely between position-limit mechanism and pneumatic mechanism, so after sliding panel has advanced static a period of time, air pressure in air collecting chamber is equal with external atmosphere pressure, after now again pressing pressuring gasbag, air pressure in air collecting chamber increases again, when air pressure increase to position-limit mechanism is resetted time, resetting-mechanism just can be taken advantage of a situation and be promoted side projecting block backward, and side projecting block promotes pneumatic mechanism more further backward and resetted by pneumatic mechanism; So just can realize namely reciprocally controlling without the need to artificial close-table operation, this structure can long-rangely realize advancing and reset operation to module, and structure is simpler; Can directly undergo technological transformation on existing equipment, the puzzlements such as no signal shielding.
Accompanying drawing explanation
Fig. 1 is the structural representation that the present invention does not release original state;
Fig. 2 is the front view of Fig. 1;
Structure for amplifying schematic diagram in Fig. 3 bitmap 2 in dotted line circle J;
Fig. 4 is the structural representation that the present invention releases limit state;
Fig. 5 is the front view of Fig. 4;
Fig. 6 is the structure for amplifying schematic diagram in Fig. 5 in dotted line circle S.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in detail.
Present embodiments provide for a kind of reciprocal propelling module for DSA die body, as Fig. 1 ~ 6, sliding panel 1 is supported on directly over base plate (not shown), the side projecting block 11 of sliding panel 1 both sides overlaps respectively and stretches out the two blocks of side plates 2 being fixed on base plate both sides, namely sliding panel 1 is supported on directly over base plate by two blocks of side plates 2, and the side projecting block 11 of both sides can along two pieces of side plate 2 horizontal shiftings, one side end of side plate 2 is provided with air inlet 3, one end of air inlet 3 is communicated with air bag (not shown) by trachea (not shown), the other end is communicated with air collecting chamber 4, the pin tail of pneumatic mechanism---straight pin 5 and air collecting chamber 4 medial wall slipper seal, and the pin tail of straight pin 5 offers the pin-and-hole 51 be communicated with air collecting chamber 4, the plunger of straight pin 5 effectively contacts with side projecting block 11 side of sliding panel 1, opposite side and the resetting-mechanism of side projecting block 11---one end of back-moving spring 7 effectively contacts, the other end of back-moving spring 7 is fixed in the baffle plate 8 in side projecting block 11 front, position-limit mechanism---spacer pin 6 is fixed in side plate 2, and spacer pin 6 is arranged perpendicular to straight pin 5, connected by spacer pin spring 63 between the plunger 61 of spacer pin 6 and pin tail 62, in an initial condition, the plunger 61 of spacer pin 6 is positioned at stopper slot 52 front end of straight pin 5 and effectively contacts with the shank of straight pin 5, spacer pin spring 63 is in compressive state, steady in order to ensure the movement of sliding panel 1 both sides, a set of above-mentioned the same structure also can be set on the side plate 2 of opposite side.
The operation principle of present embodiment is as follows:
When in air collecting chamber 4 without gas or gas pressure less time be original state, now straight pin 5 is positioned at air collecting chamber 4 rearmost end, the plunger 61 of spacer pin 6 effectively contacts with between the shank of straight pin 5, and plunger 61 is positioned at stopper slot 52 front on straight pin 5, spacer pin spring 63 is in compressive state, as shown in Fig. 1 ~ 3; When needs use this equipment to detect, press both sides air bag simultaneously, gas enters air collecting chamber 4 through trachea and air inlet 3, when the gas pressure in air collecting chamber 4 is increased to after the elastic force overcoming back-moving spring 7, gas push straight pin 5 moves forward, now side projecting block 11 also thereupon move forward compression reseting spring 7, after the front side of side projecting block 11 effectively contacts with block 8, the plunger 61 of spacer pin 6 just can be stuck in the stopper slot 52 of straight pin 5, now straight pin 5 is fixed on extreme position, as Fig. 4 ~ 6 with regard to limited pin 6 restriction; Because the pin-and-hole 51 of straight pin 5 is communicated with between stopper slot 52, and stopper slot 52 and extraneous also non-fully seal, so after above-mentioned extreme position static one end time, the air pressure in air collecting chamber 4 and external atmosphere pressure can reach balance; Then again pressuring gasbag is pressed, air pressure then in air collecting chamber 4 increases again, when air pressure is increased to the elastic force being enough to overcome spacer pin spring 63, the plunger 61 of spacer pin 6 is released compression spacer pin spring 63 by gas backward, now because the air pressure in air collecting chamber 4 reduces, back-moving spring 7 extends and moves after promotion side projecting block 11, and then move after promoting straight pin 5 until air collecting chamber 4 rear end resets, and the plunger 61 of spacer pin 6 also slides into stopper slot 52 front initial position along with moving after straight pin 5 along the shank of straight pin 5.
From above-mentioned work process, sliding panel 1 can be released when operating without the need to artificial close-table and reset, and in actual testing process, sliding panel 1 is positioned at below X-ray, namely aluminum strip 12 on sliding panel 1 is simulated blood vessel, so just can realize the detection to indices in simulated blood vessel.
It is worth mentioning that, in the present embodiment, in order to prevent when extreme position, gas pressure intensity in air collecting chamber 4 is compared with plunger 61 jack-up of senior general's spacer pin 6, be communicated with a relief chamber 9 in spacer pin 6 side, when straight pin 5 is pushed near extreme position, the gas in air collecting chamber 4 can enter relief chamber 9 by the plunger 61 of pin-and-hole 51, stopper slot 52, spacer pin 6 successively, realize blood pressure lowering, to guarantee that the plunger 61 of spacer pin 6 is stably stuck in stopper slot 52.The existence of relief chamber 9, determines the pressure produced in twice extruding gasbag process and there are differences, thus ensures to have stablized the spacing of spacer pin 6, and the homing action of back-moving spring 7.
Above-mentioned embodiment, only for technical conceive of the present invention and feature are described, its object is to person skilled in the art can be understood content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalent transformations of doing according to spirit of the present invention or modification, all should be encompassed within protection scope of the present invention.
Claims (5)
1. for a reciprocal propelling module for DSA die body, it is characterized in that, comprise sliding panel (1), base plate, two pieces of side plates (2) and at least one group of air inlet (3), air bag, air collecting chamber (4), pneumatic mechanism, position-limit mechanism and resetting-mechanism; Described two pieces of side plates (2) are separately fixed at the both sides of described base plate, described sliding panel (1) is supported on directly over described base plate, the side, both sides projecting block (11) of described sliding panel (1) overlap respectively and stretch out described two pieces of side plates (2) sidewall and can along described two pieces of side plate (2) horizontal shiftings; Described air inlet (3) is positioned at the side end of described side plate (2), and one end of described air inlet (3) is communicated with by trachea with described air bag, and the other end is communicated with described air collecting chamber (4); One end of described pneumatic mechanism and the inwall slipper seal of described air collecting chamber (4), the other end effectively contacts with projecting block (11) side, described side, the opposite side of described side projecting block (11) effectively contacts with described resetting-mechanism, and described resetting-mechanism is fixed in the baffle plate (8) in projecting block (11) front, described side; Described position-limit mechanism is fixed in described side plate (2), when the air pressure in described air collecting chamber (4) increase to promote described pneumatic mechanism move forward to extreme position time, described pneumatic mechanism restriction can be fixed on this extreme position by described position-limit mechanism, when the air pressure in described air collecting chamber (4) again increase to remove the restriction of described position-limit mechanism to described pneumatic mechanism fix time, described pneumatic mechanism can reset by described resetting-mechanism.
2. the reciprocal propelling module for DSA die body according to claim 1, it is characterized in that, described pneumatic mechanism is straight pin (5), the pin tail being positioned at the described straight pin (5) of described air collecting chamber (4) offers the pin-and-hole (51) be communicated with described air collecting chamber (4), the shank sidewall of described straight pin (5) is provided with stopper slot (52), be communicated with between described pin-and-hole (51) with described stopper slot (52), the plunger of described straight pin (5) effectively contacts with described resetting-mechanism.
3. the reciprocal propelling module for DSA die body according to claim 2, it is characterized in that, described position-limit mechanism is spacer pin (6), described spacer pin (6) is arranged perpendicular to described straight pin (5), the plunger (61) of described spacer pin (6) is connected by spacer pin spring (63) with between pin tail (62), slidingly contacts between the plunger (61) of described spacer pin (6) and the shank of described straight pin (5), when in described air collecting chamber (4) without air pressure or air pressure less time, the plunger (61) of described spacer pin (6) is positioned at the front of described stopper slot (52), when the air pressure in described air collecting chamber (4) increase to promote described straight pin (5) move forward to extreme position time, the plunger (61) of described spacer pin (6) is stuck in described stopper slot (52), when the air pressure in described air collecting chamber (4) again increase to the elastic force overcoming described spacer pin spring (63) plunger (61) of described spacer pin (6) is released described stopper slot (52) time, described straight pin (5) can reset by described resetting-mechanism.
4. the reciprocal propelling module for DSA die body according to claim 3, is characterized in that, also comprise relief chamber (9), and described relief chamber (9) is communicated with the plunger (61) of described spacer pin (6).
5. the reciprocal propelling module for DSA die body according to any one of claim 1 ~ 4, is characterized in that, described resetting-mechanism is back-moving spring (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510638483.2A CN105147396B (en) | 2015-09-30 | 2015-09-30 | Reciprocating propulsion module for DSA simulating body |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510638483.2A CN105147396B (en) | 2015-09-30 | 2015-09-30 | Reciprocating propulsion module for DSA simulating body |
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| CN105147396A true CN105147396A (en) | 2015-12-16 |
| CN105147396B CN105147396B (en) | 2017-04-19 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2460120Y (en) * | 2001-01-21 | 2001-11-21 | 彭主龙 | Compartment hand push contrast medium device with three injector |
| WO2007081662A2 (en) * | 2006-01-05 | 2007-07-19 | Koninklijke Philips Electronics, N.V. | Adjustable phantom |
| DE102010018872A1 (en) * | 2010-04-30 | 2011-11-03 | Siemens Aktiengesellschaft | An imaging method for highlighting vessels in an examination area of a patient and a medical system for performing the method |
| CN103584874A (en) * | 2013-11-26 | 2014-02-19 | 四川中测辐射科技有限公司 | DSA performance detecting body module |
| CN205041534U (en) * | 2015-09-30 | 2016-02-24 | 苏州创瑞机电科技有限公司 | A reciprocal module that advances for DSA die body |
-
2015
- 2015-09-30 CN CN201510638483.2A patent/CN105147396B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2460120Y (en) * | 2001-01-21 | 2001-11-21 | 彭主龙 | Compartment hand push contrast medium device with three injector |
| WO2007081662A2 (en) * | 2006-01-05 | 2007-07-19 | Koninklijke Philips Electronics, N.V. | Adjustable phantom |
| DE102010018872A1 (en) * | 2010-04-30 | 2011-11-03 | Siemens Aktiengesellschaft | An imaging method for highlighting vessels in an examination area of a patient and a medical system for performing the method |
| CN103584874A (en) * | 2013-11-26 | 2014-02-19 | 四川中测辐射科技有限公司 | DSA performance detecting body module |
| CN205041534U (en) * | 2015-09-30 | 2016-02-24 | 苏州创瑞机电科技有限公司 | A reciprocal module that advances for DSA die body |
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| CN105147396B (en) | 2017-04-19 |
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