The elastic probe of near infrared spectrum cerebral function imaging device
Technical field
The present invention relates to medical imaging technologies, and in particular to a kind of elasticity spy of near infrared spectrum cerebral function imaging device
Needle.
Background technique
Near infrared spectrum cerebral function imaging device measures corticocerebral oxygenated blood red eggs using the near infrared light of safety
White, deoxyhemoglobin, total hemoglobin concentration variable quantity obtain cerebral function information.
Near infrared emission probe is inserted on the helmet, and the helmet is worn on testee's head, and scalp is touched on the top of probe, closely
Infrared light is received probe and receives detection by incident cerebral tissue of popping one's head in.Probe in existing equipment is generally elastic component,
Spring (as shown in Figure 1) is added i.e. on probe, its probe is made not injure scalp, however this probe structure is simple, spring
Pop-up may injure scalp suddenly.
Summary of the invention
The present invention provides a kind of elastic probes of near infrared spectrum cerebral function imaging device, carry out to existing elastic probe
It improves, keeps it safer for scalp.
In order to solve the above-mentioned technical problem, the present invention adopts the following technical scheme:
The elastic probe of near infrared spectrum cerebral function imaging device, including shell and nut cap, the enclosure interior are equipped with circle
Cylindrical cavity, the housing bottom are equipped with limit stop ring, and probe is set in cavity, and spring I is arranged in probe tip, spring I
Top is resisted against in nut cap;Stop collar, sheathed spring II on the outside of stop collar lower section, probe, the bottom of spring II is arranged in probe top
End is resisted against in limit stop ring, and fsr-402 pressure sensor is arranged in the bottom surface of probe, and the fsr-402 pressure sensor passes through
Wireless Communication Equipment connects host, and telescopic rod is arranged in the probe top, and the telescopic rod and its driving device connect host, institute
It states driving device to be set in nut cap, infrared distance sensor is arranged in probe lower end, and the infrared distance sensor passes through wireless
The network equipment connects host, and sucker is arranged in the probe base, and Open Side Down for the sucker.
Fsr-402 pressure sensor is a kind of miniature resistance sensor, and accuracy is high, can be by scalp and between, probe
Pressure signal be converted to electric signal, host exports control information according to electric signal and controls driving device, and driving device driving is stretched
Contracting bar stretches, and is moved up and down with adjusting probe, completes after adjusting, and driving device does not act on telescopic rod, stretches
Bar retractable, the pressure that spring I and spring II act on scalp probe at this time are finely adjusted.
Further, the hull outside is cylinder.It is fixed on probe holder by fixed structure.
Further, the hull outside is regular polygon, can be regular pentagon or regular hexagon, while on probe holder
Fixed structure the fixation hole of regular polygon is set accordingly, can facilitate in insertion probe holder, prevent its rotation.
Further, the shell is connected through a screw thread with nut cap.Facilitate assembly and disassembly spring and checks optical fiber.
Further, optical-fibre channel is arranged in the probe axle center, and infrared optical fiber is arranged in the optical-fibre channel.Infrared optical fiber
End be located at the bottom of probe and penetrate probe so that infrared optical fiber directly contacts scalp.
Further, vertical guide groove is arranged in the housing side, and the infrared optical fiber passes through guide groove out of optical-fibre channel
Link host.When spring-compressed, probe drives infrared optical fiber mobile, and infrared optical fiber moves up and down in guide groove, prevents
Infrared optical fiber is extruded in shell the effect for influencing spring.
The beneficial effects of the present invention are: improved existing elastic probe, prevent scalp receive pressure suddenly and
Injury keeps it safer for scalp.
Detailed description of the invention
Present invention will be further described below with reference to the accompanying drawings and specific embodiments:
Fig. 1 is the schematic diagram of existing probe;
Fig. 2 is schematic diagram of the invention;
In figure: 1, shell;2, nut cap;3, cavity;4, limit stop ring;5, probe;51, pressure sensor;52, telescopic rod;
53, driving device;54, infrared distance sensor;55, sucker;6, spring I;7, stop collar;8, spring II;9, optical-fibre channel;
10, infrared optical fiber;11, guide groove.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings:
The elastic probe of near infrared spectrum cerebral function imaging device, including shell (1) and nut cap (2), the shell (1) are interior
Portion is equipped with cylindrical cavity (3), and shell (1) bottom is equipped with limit stop ring (4), and probe (5) is set in cavity (3), visits
Spring I (6) are set at the top of needle (5), the top of spring I (6) is resisted against on nut cap (2);Stop collar (7) are arranged in probe (5) top,
Sheathed spring II (8), the bottom end of spring II (8) are resisted against on limit stop ring (4) below stop collar (7), on the outside of probe (5), are visited
Fsr-402 pressure sensor (51) are arranged in the bottom surface of needle (5), and the fsr-402 pressure sensor (51) is set by wireless network
Telescopic rod (52) are arranged in standby connection host, probe (5) top, the telescopic rod (52) and its driving device (53) connection master
Machine, the driving device (53) are set on nut cap (2), and infrared distance sensor (54) are arranged in probe (5) lower end, described infrared
Range sensor (54) connects host by Wireless Communication Equipment, and sucker (55) are arranged in probe (5) bottom, the sucker
(55) Open Side Down.
Further, the hull outside is cylinder.
Further, the hull outside is cylinder.It is fixed on probe holder by fixed structure.
Further, the hull outside is regular polygon, can be regular pentagon or regular hexagon, while on probe holder
Fixed structure the fixation hole of regular polygon is set accordingly, can facilitate in insertion probe holder, prevent its rotation.
Further, the shell is connected through a screw thread with nut cap.Facilitate assembly and disassembly spring and checks optical fiber.
Further, probe (5) axle center setting optical-fibre channel (9), the optical-fibre channel (9) is interior to be arranged infrared optical fiber
(10).The end of infrared optical fiber is located at the bottom of probe and penetrates probe, so that infrared optical fiber directly contacts scalp.
Further, shell (1) side is arranged vertical guide groove (11), and the infrared optical fiber (10) is from optical-fibre channel
(9) host is linked by guide groove (11) in.When spring-compressed, probe drives infrared optical fiber mobile, and infrared optical fiber is being led
It moves up and down in slot, infrared optical fiber is prevented to be extruded in shell the effect for influencing spring.
Fig. 2 is probe schematic diagram, and fsr-402 pressure sensor is a kind of miniature resistance sensor, and accuracy is high, can be incited somebody to action
Scalp and the pressure signal between, probe are converted to electric signal, and host exports control information according to electric signal and controls driving device,
Driving device driving telescopic rod stretches, and is moved up and down with adjusting probe, completes after adjusting, driving device does not act on
On telescopic rod, telescopic rod retractable, it is micro- to act on the progress of the pressure on scalp for probe for spring I and spring II at this time
It adjusts.Scalp is sucked in sucker, prevents probe from leaving the contact with scalp.
Particular embodiments described above, pair present invention solves the technical problem that, technical scheme and beneficial effects carry out
It is further described, it should be understood that the above is only a specific embodiment of the present invention, is not limited to this
Invention, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should be included in this hair
Within bright protection scope.