CN211066706U - String type phantom device of ultrasonic transcranial Doppler blood flow analyzer - Google Patents
String type phantom device of ultrasonic transcranial Doppler blood flow analyzer Download PDFInfo
- Publication number
- CN211066706U CN211066706U CN201920924810.4U CN201920924810U CN211066706U CN 211066706 U CN211066706 U CN 211066706U CN 201920924810 U CN201920924810 U CN 201920924810U CN 211066706 U CN211066706 U CN 211066706U
- Authority
- CN
- China
- Prior art keywords
- blood flow
- motor
- doppler
- water
- rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Ultra Sonic Daignosis Equipment (AREA)
Abstract
The utility model discloses a string type phantom device of an ultrasonic transcranial Doppler blood flow analyzer, wherein a supporting rod for hanging a Doppler probe is arranged at the orifice of a water tank, and a Doppler cord rotates on the bottom surface of the water tank through a pulley block driven by a first motor; the first motor is driven by the controller unit. The main calibration items are blood flow speed error, blood flow detection depth and blood flow direction identification; the Doppler probe is clamped by the chuck unit which can rotate, identify and adjust the angle, a frequency spectrum is obtained, the Doppler probe is moved along the horizontal direction of string transmission through the lead screw, and the measurement of parameters required by blood flow speed error, blood flow detection depth and blood flow direction identification is completed through motion measurement. The device has the advantages of simple structure, low manufacturing and maintenance cost, difficult damage and easy scrubbing, and the whole device conforms to the relevant standards and has strong practicability and wide applicability.
Description
Technical Field
The invention relates to a string type phantom device, in particular to a string type phantom device of an ultrasonic transcranial Doppler blood flow analyzer, belonging to the technical field of blood flow analysis quality detection.
Background
Ultrasonic transcranial Doppler (transcranial Doppler ultrasound): the technology for measuring intracranial and extracranial blood flow by adopting an ultrasonic Doppler technology is called TCD for short.
TCD assesses blood flow conditions primarily as the level of blood flow velocity, and since the internal diameter of the cerebral artery is relatively nearly constant under equivalent conditions, a corresponding change in local cerebral blood flow can be inferred from a decrease or increase in cerebral blood flow velocity.
The blood flow velocity reflects the cerebral artery lumen size and blood flow. When the lumen is severely narrowed (90%) or completely blocked, the blood flow speed is reduced, and the individual values can be greatly varied, but the difference between individuals is small, and the left side and the right side are basically symmetrical, and if the difference between the two sides is large, the abnormality can be considered.
At present, due to the generalization of the ultrasonic doppler technology in medicine, the corresponding ultrasonic doppler diagnostic apparatus is also widely applied to clinical medicine, and the corresponding detection method and detection standard are also continuously provided.
The test phantom recommended by 6.1.3 of ultrasonic transcranial Doppler blood flow analyzer 2005 according to the medical industry standard YY 0593 of the people's republic of China is a blood flow simulation phantom and a chord line phantom. However, most of the existing detection devices mainly rely on import, and the test pieces are mainly blood flow simulation models (the national medical and pharmaceutical industry standard YY/T0458-. Secondly, the phantom is complex to carry, assemble, detect and operate.
Therefore, a string-type Doppler test piece recommended by the third special Doppler test piece 3.1.1 of the ultrasonic transcranial Doppler blood flow analyzer needs to be designed as an arbitration method by combining IEC 61206 + 1993 ultrasonic science, continuous wave Doppler system and test procedure and the national medical and pharmaceutical industry standard YY/T0705 + 2008/IEC 61206:1993, ultrasonic continuous wave Doppler system test procedure.
Disclosure of Invention
In order to solve the defects of the prior art, the invention aims to provide a string type phantom device of an ultrasonic transcranial Doppler blood flow analyzer.
In order to achieve the above object, the present invention adopts the following technical solutions:
a string type phantom device of an ultrasonic transcranial Doppler blood flow analyzer is characterized in that a supporting rod for hanging a Doppler probe is arranged at the orifice of a water tank, and a Doppler cross line rotates on the bottom surface of the water tank through a pulley block driven by a first motor;
the first motor is driven by a controller unit.
The Doppler probe is suspended on the supporting rod through the chuck unit,
the chuck unit comprises a gripper assembly, a transmission assembly, a second motor and a rotary encoder;
the transmission assembly comprises a driving shaft, a first driven shaft and a second driven shaft which are linked through a gear; the first driven shaft is connected with the gripper assembly, and the second driven shaft is connected with the rotary encoder; the second motor drives the driving shaft and is linked with the gripper assembly and the rotary encoder through the transmission assembly.
The holding claw assembly comprises a cavity shell for accommodating the first connecting rod, the second connecting rod and the pressing rod, and a horizontal sliding groove is formed in the front end of the shell; the pair of holding claws is arranged outside the shell, the holding claw shaft at the tail end passes through the sliding chute to be respectively coupled with one ends of the first connecting rod and the second connecting rod, the other ends of the first connecting rod and the second connecting rod are coupled with the bottom end of the pressing rod, and the pressing rod passes through a pressing hole in the top of the shell and moves longitudinally along the pressing hole; a return spring is sleeved on the pressing rod between the pressing cap at the top end of the pressing rod and the shell;
the first driven shaft is fixedly connected with the rear end of the shell.
Furthermore, the transmission assembly also comprises a central shaft connected with the central gear;
the driving shaft, the first driven shaft and the second driven shaft are in gear joint with the central gear through gears respectively.
Furthermore, the second motor and the rotary encoder are respectively connected with the controller unit,
the controller unit drives the second motor to rotate,
the controller unit receives feedback of the rotary encoder and outputs a rotation angle of the gripper assembly.
The support rod comprises a screw rod and a slide rod which are horizontally arranged relative to the longitudinal surface, and the Doppler probe is connected with the screw rod through a nut;
the controller unit drives the third motor shaft to rotate the screw rod, and the linkage Doppler probe slides along the slide rod.
The pulley block comprises guide wheels arranged at two ends of the bottom surface of the water tank and a main pulley arranged on the side wall of the water tank;
the controller unit drives the first motor to rotate the main pulley and is linked with the broken line to rotate circularly.
The bottom surface of the water tank forms an inclination angle of 30-60 degrees along the horizontal direction.
A water inlet and a water outlet are respectively arranged at two ends of the water tank, and a water injection/drainage driving unit is arranged between the water inlet and the water outlet and comprises a water inlet pump, a water outlet pump and a pair of three-way pipes;
the main pipe of the three-way pipe is respectively connected with the water inlet and the water outlet, the water inlet pump and the water outlet pump are respectively connected between the three-way pipes, and the two ends of the water inlet pump and the water outlet pump are respectively connected with the branch pipes of the three-way pipes;
the controller unit drives the water inlet pump and the water outlet pump to realize water injection and drainage of the water tank.
The invention has the advantages that:
the invention relates to a string type phantom device of an ultrasonic transcranial Doppler blood flow analyzer, which has the main calibration items of blood flow speed error, blood flow detection depth and blood flow direction identification; the Doppler probe is clamped by the chuck unit which can rotate, identify and adjust the angle, a frequency spectrum is obtained, the Doppler probe is moved along the horizontal direction of string transmission through the lead screw, and the measurement of parameters required by blood flow speed error, blood flow detection depth and blood flow direction identification is completed through motion measurement. The device has the advantages of simple structure, low manufacturing and maintenance cost, difficult damage and easy scrubbing, and the whole device conforms to the relevant standards and has strong practicability and wide applicability.
Drawings
Fig. 1 is a schematic structural diagram of a chord line type phantom device of an ultrasonic transcranial Doppler blood flow analyzer.
Fig. 2 is a schematic structural view of the cartridge unit of the present invention.
FIG. 3 is a schematic view of a gripper assembly according to the present invention.
Fig. 4 is a schematic structural view of a water filling/draining driving unit according to the present invention.
The designations in the drawings have the following meanings: A. the clamping head unit, the controller unit, the water tank and the clamping head unit are arranged in sequence;
1. the device comprises a second motor, 2, a rotary encoder, 3, a driving gear, 4, a driving shaft, 5, a central gear, 6, a central shaft, 7, a first gear, 8, a first driven shaft, 9, a second gear, 10, a second driven shaft, 11, a cover plate, 12, a pressing cap, 13, a holding claw, 14, a shell, 15, a first connecting rod, 16, a second connecting rod, 17, a pressing rod, 18, a reset spring, 19, a water inlet, 20, a water outlet, 21, a main pulley, 22, a guide wheel, 23, a screw rod, 24 and a sliding rod.
Detailed Description
The invention is described in detail below with reference to the figures and the embodiments.
The rotary encoder is selected from ohm dragon E6B2-CWZ 6C.
A string type phantom device of an ultrasonic transcranial Doppler blood flow analyzer comprises a water tank, a chuck unit, a controller unit, a pulley block and a Doppler cross line.
The water tank is rectangular, and the bottom surface in the water tank is arranged at an inclination angle of 30 degrees. The bottom of basin is located to the outlet, and the top of basin is located to the water inlet. A water injection/drainage driving unit is arranged between the water inlet and the water outlet and consists of a water inlet pump, a water outlet pump and a pair of three-way pipes; the main pipe of the three-way pipe is respectively connected with the water inlet and the water outlet, the water inlet pump and the water outlet pump are respectively connected between the three-way pipes, and the two ends of the water inlet pump and the water outlet pump are respectively connected with the branch pipes of the three-way pipes; the controller unit drives the water inlet pump and the water outlet pump to realize water injection and drainage of the water tank.
The pulley block consists of an upper guide wheel, a lower guide wheel and a main pulley, wherein the upper guide wheel and the lower guide wheel are respectively arranged at two ends of the bottom surface of the water tank, and the main pulley is arranged at the side wall (the end with the high bottom surface) of the water tank. The Doppler broken line is arranged around the upper guide wheel, the lower guide wheel and the periphery of the main pulley, and the controller unit drives the first motor to rotate the main pulley to be linked with the broken line to rotate circularly.
A cavity opening of the water tank is provided with a pair of screw rods and slide rods which are horizontally arranged corresponding to the longitudinal surface, and a chuck unit for clamping the Doppler probe is connected with the screw rods and the slide rods through nuts; the controller unit drives the third motor shaft to rotate the screw rod, and the linkage Doppler probe slides along the slide rod.
The chuck unit comprises holding claw subassembly, transmission assembly, second motor, rotary encoder.
The transmission assembly comprises a transmission shell, a central gear with the outer diameter of 60mm is arranged in a cavity of the transmission shell, and the transmission shell rotates by taking the central shaft as an axis; a first gear with the outer diameter of 15mm is in gear connection with the central gear and is linked with the gripper assembly through a first driven shaft at the axis; a first gear with the outer diameter of 30mm is in gear joint with the central gear and is linked with the rotary encoder through a second driven shaft at the axis; the motor shaft is a driving shaft and is linked with a central gear through a driving gear with the outer diameter of 15mm on the shaft.
The drive housing cavity is closed by a cover plate and separates the drive housing and the chuck device.
The controller unit is connected with the second motor and the rotary encoder, drives the second motor to rotate, receives feedback of the rotary encoder and outputs the rotation angle of the gripper assembly.
The gripper assembly consists of a gripper and a connecting rod assembly in the shell. The connecting rod assembly comprises a first connecting rod and a second connecting rod, one end of the first connecting rod is connected with the bottom end of the pressing rod in a shaft mode, and the other ends of the first connecting rod and the second connecting rod are respectively connected with a shaft at the tail end of the holding claw in a shaft mode; the holding claw slides along the horizontal sliding groove at the front end of the shell through the shaft at the tail end, the pressing rod penetrates through the pressing hole at the top end of the shell, and the pressing rod longitudinally moves along the pressing hole and is sleeved with a reset spring between the pressing cap and the shell at the top end of the pressing rod. The first driven shaft is fixedly connected with the rear end of the shell and is linked with the whole gripper assembly.
When in use:
and fixing the Doppler probe handle to be measured on the holding claw, so that the axis (Doppler sound beam axis) of the Doppler probe handle is in the vertical direction.
The controller unit works to inject water into the water tank; the controller unit drives the water injection/drainage driving unit to operate the water inlet pump, and the automatic water injection work of the water tank is completed. And proper amount of water or medium is injected to serve as human body medium, so that the front part of the Doppler probe is ensured to be immersed in water, and water injection is completed.
The controller unit drives the Doppler string to work and controls the speed of the string to be set in a constant speed mode of 50 cm/S; the controller unit drives the second motor to work, and the gripper assembly is rotated until a clear frequency spectrum is displayed on the ultrasonic transcranial Doppler blood flow analyzer; the controller unit drives the third motor to work, drives the chuck unit, and is linked with the Doppler probe to move along the horizontal direction of chord transmission for measurement, so that the measurement of parameters required by blood flow speed error, blood flow detection depth and blood flow direction identification is completed.
And after the measurement is finished, the controller unit drives the water outlet pump to work to finish the automatic drainage of the water tank.
Preferably, the water filling/discharging driving unit is disposed at the bottom of the water tank, i.e., at a portion below the bottom surface of 30 °.
Preferably, the controller unit is disposed at a side surface of the water tub and is integrally provided with the water tub.
Preferably, the basin adopts ya keli material, integral type structure.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It should be understood by those skilled in the art that the above embodiments do not limit the present invention in any way, and all technical solutions obtained by using equivalent alternatives or equivalent variations fall within the scope of the present invention.
Claims (8)
1. A string type phantom device of an ultrasonic transcranial Doppler blood flow analyzer is characterized in that a supporting rod for hanging a Doppler probe is arranged at the orifice of a water tank, and a Doppler cross line rotates on the bottom surface of the water tank through a pulley block driven by a first motor;
the first motor is driven by a controller unit.
2. The chordal phantom device of an ultrasonic transcranial Doppler blood flow analyzer of claim 1, wherein the Doppler probe is suspended from a support rod by a collet unit,
the chuck unit comprises a gripper assembly, a transmission assembly, a second motor and a rotary encoder;
the transmission assembly comprises a driving shaft, a first driven shaft and a second driven shaft which are linked through a gear; the first driven shaft is connected with the gripper assembly, and the second driven shaft is connected with the rotary encoder; the second motor drives the driving shaft and is linked with the gripper assembly and the rotary encoder through the transmission assembly;
the holding claw assembly comprises a cavity shell for accommodating the first connecting rod, the second connecting rod and the pressing rod, and a horizontal sliding groove is formed in the front end of the shell; the pair of holding claws is arranged outside the shell, a holding claw shaft at the tail end penetrates through the sliding chute to be respectively coupled with one ends of the first connecting rod and the second connecting rod, the other ends of the first connecting rod and the second connecting rod are coupled with the bottom end of the pressing rod, and the top end of the pressing rod penetrates through a pressing hole in the top of the shell and longitudinally moves along the pressing hole; a return spring is sleeved on the pressing rod between the pressing cap at the top end of the pressing rod and the shell;
the first driven shaft is fixedly connected with the rear end of the shell.
3. The ultrasonic transcranial doppler flow analyzer chordal phantom device of claim 2, wherein the transmission assembly further comprises a central shaft connected to a central gear;
the driving shaft, the first driven shaft and the second driven shaft are in gear joint with the central gear through gears respectively.
4. The chordal phantom apparatus of an ultrasonic transcranial Doppler blood flow analyzer according to claim 2, wherein the second motor and the rotary encoder are respectively connected to a controller unit,
the controller unit drives the second motor to rotate,
the controller unit receives feedback of the rotary encoder and outputs a rotation angle of the gripper assembly.
5. The chordal phantom device of an ultrasonic transcranial doppler blood flow analyzer of claim 1, wherein the support rod comprises a lead screw and a slide bar horizontally arranged with respect to the longitudinal plane, and the doppler probe is connected with the lead screw through a nut;
the controller unit drives the third motor shaft to rotate the screw rod, and the linkage Doppler probe slides along the slide rod.
6. The chordal phantom device of an ultrasonic transcranial Doppler blood flow analyzer according to claim 1, wherein the pulley block comprises guide wheels arranged at two ends of the bottom surface of the water tank, and main pulleys arranged on the side walls of the water tank;
the controller unit drives the first motor to rotate the main pulley and is linked with the broken line to rotate circularly.
7. The ultrasonic transcranial doppler blood flow analyzer string phantom device according to claim 1, wherein the bottom surface of the water trough is inclined at an angle of 30-60 ° horizontally.
8. The string phantom device of an ultrasonic transcranial Doppler blood flow analyzer according to claim 1, wherein a water inlet and a water outlet are respectively formed at two ends of the water tank, and a water injection/drainage driving unit is arranged between the water inlet and the water outlet and comprises a water inlet pump, a water outlet pump and a pair of three-way pipes;
the main pipe of the three-way pipe is respectively connected with the water inlet and the water outlet, the water inlet pump and the water outlet pump are respectively connected between the three-way pipes, and the two ends of the water inlet pump and the water outlet pump are respectively connected with the branch pipes of the three-way pipes;
the controller unit drives the water inlet pump and the water outlet pump to realize water injection and drainage of the water tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920924810.4U CN211066706U (en) | 2019-06-19 | 2019-06-19 | String type phantom device of ultrasonic transcranial Doppler blood flow analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920924810.4U CN211066706U (en) | 2019-06-19 | 2019-06-19 | String type phantom device of ultrasonic transcranial Doppler blood flow analyzer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211066706U true CN211066706U (en) | 2020-07-24 |
Family
ID=71620629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920924810.4U Active CN211066706U (en) | 2019-06-19 | 2019-06-19 | String type phantom device of ultrasonic transcranial Doppler blood flow analyzer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211066706U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110269640A (en) * | 2019-06-19 | 2019-09-24 | 南京信息职业技术学院 | A kind of ultrasound transcranial Doppler blood flow analysis instrument string formula body mold device |
| CN110292397A (en) * | 2019-06-19 | 2019-10-01 | 南京信息职业技术学院 | A kind of cartridge device |
-
2019
- 2019-06-19 CN CN201920924810.4U patent/CN211066706U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110269640A (en) * | 2019-06-19 | 2019-09-24 | 南京信息职业技术学院 | A kind of ultrasound transcranial Doppler blood flow analysis instrument string formula body mold device |
| CN110292397A (en) * | 2019-06-19 | 2019-10-01 | 南京信息职业技术学院 | A kind of cartridge device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211066706U (en) | String type phantom device of ultrasonic transcranial Doppler blood flow analyzer | |
| CN103471806B (en) | A kind of drum-type fluid friction resistance tester | |
| CN108663502B (en) | Full-automatic thromboelastography instrument | |
| CN108158608A (en) | A kind of Ultrasonography automatic coupling probe combination unit | |
| CN108453108A (en) | A kind of cleaning equipment for clinical laboratory's test tube | |
| CN110269640A (en) | A kind of ultrasound transcranial Doppler blood flow analysis instrument string formula body mold device | |
| CN106238389B (en) | All-glass syringe ultrasonic clean scrubs machine | |
| CN207181226U (en) | A kind of rheogeniometer device | |
| CN211066707U (en) | Chuck device | |
| CN209117671U (en) | A kind of ecological aquaculture breeding water quality detection prior-warning device | |
| CN110292397A (en) | A kind of cartridge device | |
| CN104888252B (en) | A kind of hysteroscope chlorination equipment | |
| CN107340206B (en) | Device for blood rheology detection | |
| CN209334403U (en) | Hospital laboratory test tube cleaning device | |
| CN106391552B (en) | The electric power oiling experiment washing tool of needle guard | |
| CN213030696U (en) | String type Doppler test piece device | |
| CN108889664A (en) | A kind of blood testing ELISA Plate cleaning device | |
| CN213416827U (en) | Automatic gene sequencing sample loading device | |
| CN113713669A (en) | Biological liquid mixing and stirring equipment for laboratory | |
| CN208937549U (en) | A kind of ion chromatograph to Drinking Water detection | |
| CN107748207B (en) | Full-automatic multi-parameter measuring device for evaluating water immersion type and contact type probes | |
| CN220419343U (en) | Disease prevention and control verifying attachment | |
| CN204723436U (en) | A kind of chamber mirror decontaminating apparatus | |
| CN220820040U (en) | Detection kit for fatty liver detection reagent | |
| CN213941309U (en) | Novel clinical workstation of using of nephrology dept |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |