CN108635684B

CN108635684B - Calibrating device for medical radiation

Info

Publication number: CN108635684B
Application number: CN201810391116.0A
Authority: CN
Inventors: 孙琦; 董敏俊; 陶晓峰; 赵志; 余燕兵
Original assignee: Ninth Peoples Hospital Shanghai Jiaotong University School of Medicine
Current assignee: Ninth Peoples Hospital Shanghai Jiaotong University School of Medicine
Priority date: 2018-04-27
Filing date: 2018-04-27
Publication date: 2020-05-29
Anticipated expiration: 2038-04-27
Also published as: CN108635684A

Abstract

The invention discloses a medical radiation calibration device which comprises a base, a fixed rod and a vertical plate, wherein a support is fixed above the base, a support rod is arranged above the support, a telescopic rod is installed above the support rod, a support is fixed on the outer side of the telescopic rod, a threaded rod is connected with the lower part of the fixed rod in a threaded mode, the fixed rod is located below the support, a laser lamp is installed below the threaded rod, a chain retracting wheel is installed above the vertical plate, and the vertical plate is located on the right side of the base. According to the invention, through the arrangement of the balls, the cross frame can rotate circularly by taking the support rod as a central shaft, the adjusting frame can be pumped into and out of the cross frame by utilizing the size matching between the cross frame and the adjusting frame, the placing position and the placing direction of the adjusting frame are flexibly changed, the accuracy in calibration is improved, the outer protective ring is rotatably connected with the adjusting frame through the connecting rod, the placing angle of the condensing lens relative to the outer protective ring is adjusted, and the direction of laser is adjusted.

Description

Calibrating device for medical radiation

Technical Field

The invention relates to the technical field of medical radiation calibration devices, in particular to a calibration device for medical radiation.

Background

When a patient is seen in a hospital and is subjected to diagnosis and development, such as diagnosis by an X-ray, CT, PET, isotope therapy and other instruments, certain radiation has certain harmfulness, but if the radiation is not frequently used, the calibration of physical rays is very important in the field of medical radiation, and the calibration is related to whether the execution operation of the radio examination is normal or accurate.

At present, when a calibration device used by medical radiation equipment is used for calibration, the calibration device is greatly influenced by human factors, physical rays generally propagate in a straight line, and the calibration of the straight line rays is easier to perform to a certain extent.

Disclosure of Invention

The invention aims to provide a calibration device for medical radiation, which solves the problems that the calibration device used by the existing medical radiation equipment is greatly influenced by human factors when being calibrated, and the calibration of a ray projection position is not accurate, the visibility of human eyes is limited and the like when being actually calibrated.

In order to achieve the purpose, the invention provides the following technical scheme: a calibration device for medical radiation comprises a base, a fixed rod and a vertical plate, wherein a support is fixed above the base, a support rod is arranged above the support seat, a telescopic rod is arranged above the support rod, a bracket is fixed at the outer side of the telescopic rod, a threaded rod is connected with the lower part of the fixed rod in a threaded manner, the fixed rod is positioned below the bracket, the laser lamp is arranged below the threaded rod, the connecting rod is fixed at one side of the bracket close to the outside, the supporting tables are arranged at the left side and the right side of the supporting rod, a rotating sleeve is arranged on the front side of the supporting platform, a transition wheel is arranged below the supporting platform, a linkage gear is arranged on one side of the transition wheel close to the central axis of the supporting platform, a chain retracting wheel is arranged above the vertical plate, and the vertical plate is positioned on the right side of the base, a supporting rod is fixed above the front side of the rotating sleeve, and a protective pipe is arranged above the supporting rod.

Preferably, the ball is inlaid in the middle outer wall of the support rod, a cross frame is fixed to the outer side of the ball, an adjusting frame is arranged on the outer side of the cross frame, and the size of the cross frame is matched with that of the adjusting frame.

Preferably, a connecting rod is fixed between the adjusting frames, an outer guard ring is arranged in the middle of the connecting rod, a condensing lens is installed in the middle of the outer guard ring, and the outer guard ring is rotatably connected with the adjusting frames through the connecting rod.

Preferably, the inside of support is provided with the spring, and the support passes through spring and telescopic link elastic connection, the junction of support and telescopic link evenly is provided with the foam-rubber cushion, and the axis of support and the axis coincidence of telescopic link.

Preferably, the fixing rods are connected through the rack rods, and two groups of fixing rods are arranged on each 3 of the fixing rods, and the two groups of fixing rods are symmetrical about the vertical center line of the supporting rod.

Preferably, steel balls are uniformly arranged in the middle of the rotating sleeve, the traction chain is in sliding connection with the rotating sleeve through the steel balls, the rotating sleeve is provided with 3 rotating sleeves at equal intervals in the horizontal direction of the supporting table, and the rotating sleeves are equal in size.

Preferably, the top of pillar is provided with the power, and the left side installation of power has photoelectric sensor, photoelectric sensor is provided with 3 along the vertical direction of pillar altogether, and each photoelectric sensor all passes through wire and power electric connection.

Compared with the prior art, the invention has the following beneficial effects:

1. according to the invention, through the arrangement of the balls, the cross frame can rotate circularly by taking the support rod as a central shaft, the adjusting frame can be pumped into and out of the cross frame by utilizing the size matching between the cross frame and the adjusting frame, the placing position and the placing direction of the adjusting frame are flexibly changed, the accuracy in calibration is improved, the outer protective ring is rotatably connected with the adjusting frame through the connecting rod, the placing angle of the condensing lens relative to the outer protective ring is adjusted, and the direction of laser is adjusted.

2. The telescopic rod is fixed inside the support through the spongy cushion, the telescopic rod can be normally stretched between the telescopic rod and the support, the specific laser emission position is adjusted, the telescopic rod and the support achieve limiting and positioning effects through the spongy cushion, and meanwhile the spongy cushion protects the connection position of the telescopic rod and the support.

3. The rack rod is used for drawing and fixing the fixed rod, the fixed rod is in threaded connection with the threaded rod, the laser lamp can be freely assembled, emits laser, and is used for calibrating radioactive rays by utilizing linear light, so that the calibration accuracy is improved, the influence of human factors is reduced, the placement position and the direction angle of the laser lamp can be finely adjusted by utilizing the rack rod, and the laser light emitted by the laser lamp can be ensured to be normally projected onto the condensing lens to finish condensing.

4. According to the invention, through the arrangement of the steel balls, the traction chain can normally slide on the rotating sleeve, the rotating sleeve is subjected to angle control by utilizing the movement of the traction chain, the rotating sleeve rotates at a slight angle, the stability is ensured, meanwhile, in order to obtain better photoelectric information, the linkage gears are mutually meshed, the traction chain is ensured to be in a straightening state in the movement, and the connection is stable.

5. The power supply provided by the invention supplies electricity to the photoelectric sensor through the lead, so that the photoelectric sensor can work normally, the model of the photoelectric sensor is HPI-210, the photoelectric sensor can perform photoelectric sensing on laser light collected by the condensing lens, the sensor is used for capturing correction light, the accuracy and the high reliability of correction work are ensured, and the possibility of artificial visual inspection can be reduced to the maximum extent by the whole correction work.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a portion of the stent of the present invention;

FIG. 3 is a schematic view of the connection structure of the rotary sleeve and the protective tube of the present invention.

In the figure: a01 base, A02 support, A03 support rod, A04 ball, A05 crossbearer, A06 adjusting bracket, A07 connecting rod, A08 outer guard ring, A09 condenser lens, A10 telescopic rod, A11 support, A12 spring, A13 spongy cushion, A14 fixing rod, A15 threaded rod, A16 laser lamp, A17 hack rod, A18 connecting rod, A19 support platform, A20 swivel, A21 steel ball, A22 drag chain, A23 transition wheel, A24 linkage gear, A25 vertical plate, A26 sprocket wheel, A27 support rod, A28 protective tube, A29 power supply, A30 photoelectric sensor, A31 lead.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, a calibration device for medical radiation includes a base a01, a support a02, a support rod a03, a ball a04, a cross frame a05, an adjusting frame a06, a connecting rod a07, an outer protective ring a08, a condenser lens a09, a telescopic rod a10, a support a11, a spring a12, a sponge pad a12, a fixing rod a12, a threaded rod a12, a laser lamp a12, a collecting wheel a12, a fixing rod a12, a support table a12, a swivel sleeve a12, a steel ball a12, a traction chain a12, a transition wheel a12, a linkage gear a12, a riser plate a12, a chain-retracting wheel a12, a support rod a12, a protective tube a12, a power supply a12, a photoelectric sensor a12 and a12, a12 is fixed above the base a12, the support a12 is provided with the support a12, the support rod a12 is embedded in the outer wall of the support rod a12, the ball a12 is arranged outside the cross frame a12, the cross frame 12 a12 is arranged on the cross frame a12 and the cross frame 12 a12 and the ball a12 is matched with the adjusting frame 12 a 36, the transverse frame A05 can rotate circularly by taking the supporting rod A03 as a central axis, the adjusting frame A06 can be drawn into and drawn out of the transverse frame A05 by utilizing the size matching between the transverse frame A05 and the adjusting frame A06, the placing position and the placing direction of the adjusting frame A06 can be flexibly changed, the accuracy in calibration is improved, a connecting rod A07 is fixed between the adjusting frames A06, an outer guard ring A07 is arranged in the middle of the connecting rod A07, a condensing lens A07 is arranged in the middle of the outer guard ring A07, the outer guard ring A07 is rotatably connected with the adjusting frame A07 through the connecting rod A07, the placing angle of the condensing lens A07 relative to the outer guard ring A07 is adjusted to adjust the direction of laser, a telescopic rod A07 is arranged above the supporting rod A07, the supporting rod A07 is fixed on the outer side of the telescopic rod A07, a spring A07 is arranged in the supporting rod A07, and the supporting rod A07 is connected with the telescopic rod A07 through a spring A07 in a telescopic rod 07, sponge pads A13 are uniformly arranged at the joint of the bracket A11 and the telescopic rod A10, the central axis of the bracket A11 is superposed with the central axis of the telescopic rod A10, the elastic characteristic of a spring A12 ensures that the telescopic action between the bracket A11 and the telescopic rod A10 can be reset, the telescopic rod A10 is fixed inside the bracket A11 by utilizing the sponge pads A13, the telescopic rod A10 and the bracket A11 can normally stretch, the specific laser emission position is adjusted, the position limiting and positioning effects are achieved between the telescopic rod A10 and the bracket A11 by the sponge pads A13, meanwhile, the sponge pads A13 also protect the connecting position of the telescopic rod A10 and the bracket A11, the lower part of the fixing rod A14 is in threaded connection with the A15, the fixing rod A14 is positioned below the bracket A11, laser lamps A16 are arranged below the threaded rods A15, the fixing rod A14 is connected by the bracket rods A17, and each group of two groups of threaded rods A593 is arranged on the fixing rod A14, the two groups are symmetrical about the vertical central line of the strut A03, the hack lever A17 is used for towing and fixing the fixing rod A14, the fixing rod A14 and the threaded rod A15 are in threaded connection, the laser lamp A16 can be freely assembled, the laser lamp A16 emits laser, the linear light is used for calibrating radiation rays, the calibration accuracy is improved, the influence of human factors is reduced, the placement position and the direction angle of the laser lamp A16 can be finely adjusted by using the hack lever A17, the laser light emitted by the laser lamp A16 can be normally projected onto the condensing lens A09 to finish condensing, the connecting rod A18 is fixed on the outer side of the support A11, the support tables A19 are installed on the left side and the right side of the strut A03, the rotating sleeve A20 is arranged on the front side of the support table A19, steel balls A21 are uniformly arranged in the middle of the rotating sleeve A20, the towing chain A22 is in sliding connection with the rotating sleeve A20 through the steel balls A21, the rotating sleeve A20 is provided with the supporting tables 3, the sizes of the rotating sleeves A20 are equal, the steel balls A21 are arranged to enable the traction chain A22 to normally slide on the rotating sleeve A20, the rotating sleeve A20 is controlled in angle by the movement of the traction chain A22, the rotating sleeve A20 rotates at a slight angle, so that the stability is ensured, meanwhile, in order to obtain better photoelectric information, a transition wheel A23 is arranged below a supporting platform A19, a linkage gear A24 is arranged on one side of the transition wheel A23 close to the central axis of the supporting platform A19, the linkage gears A24 are meshed with each other, the traction chain A22 is in a straightening state in the movement and is stably connected, a chain receiving wheel A26 is arranged above a vertical plate A25, the vertical plate A25 is positioned on the right side of a base A01, a support rod A27 is fixed above the front side of the rotating sleeve A20, a support rod A27 is provided with a power supply A28, a power supply A28 is arranged above the power supply A28, and a left side of the power supply A28 is provided with a photoelectric sensor 28, photoelectric sensor A30 is provided with 3 along the vertical direction of pillar A28 altogether, and each photoelectric sensor A30 all is through wire A31 and power A29 electric connection, power A29 provides the electric quantity for photoelectric sensor A30 through wire A31, make photoelectric sensor A30 normally work, photoelectric sensor A30's model is HPI-210, can carry out the photoelectric sensing to the laser light by condensing lens A09 gathering, utilize the sensor to catch the correction light, the accuracy of having guaranteed the correction work is gone on and high reliability, make whole correction work can reduce the possibility of artificial sight observation to the maximize.

When the device is used, the device is placed on a proper position of equipment in a swinging mode, the traction chain A22 on the vertical plate A25 is pulled, under the action of the chain retracting wheel A26, the traction chain A22 starts to act, the traction chain A22 is straightened as much as possible by means of the matching action of the transition wheels A23 and the linkage gears A24, so that the rotation control of the traction chain A22 on the sleeve A20 is ensured, after the sleeve A20 slightly rotates, the supporting rod A27 deflects along with the transition wheels, the position of the protective tube A28 correspondingly changes, the position of the photoelectric sensor A30 is ready, the type of the photoelectric sensor A30 is HPI-210, the photoelectric sensing can be carried out on laser light collected by the condensing lens A09, the sensor is used for capturing the correction light, the accuracy and the high reliability of the correction work are ensured, the telescopic rod A10 and the bracket A11 are adjusted, the bracket A17 is adjusted, the placing angle of each fixing rod A14 is adjusted, the laser light A16 position is ready, ideally, the center of the laser light A16, the center of the condenser lens A09 and the center of the protective tube A28 are located on the same horizontal straight line, in the device, the position of the condenser lens A09 needs to be adjusted, along with the extension of the telescopic rod A10, the fixed rod A18 pulls the adjusting frame A06 to be drawn out from the cross frame A05, the outer protective ring A08 is moved to a proper position, the condenser lens A09 is rotated angularly by the connecting rod A07, the position of the condenser lens A09 is ready, the device aims to build a correction standard, the laser straight line is used for correction, the position of the device is correct relative to equipment, radiation inspection is carried out, physical rays are emitted through the adjusted correcting device, and the accuracy of radiation sites is guaranteed.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A calibrating device for medical radiation comprises a base (A01), a fixing rod (A14) and a vertical plate (A25), and is characterized in that: a support (A02) is fixed above the base (A01), a support rod (A03) is arranged above the support (A02), an expansion rod (A10) is installed above the support rod (A03), a support (A11) is fixed on the outer side of the expansion rod (A10), a threaded rod (A15) is connected below the fixing rod (A14) in a threaded manner, the fixing rod (A14) is located below the support (A11), a laser lamp (A16) is installed below the threaded rod (A15), a connecting rod (A18) is fixed on one outer side of the support (A11), support platforms (A19) are installed on the left side and the right side of the support rod (A03), a rotating sleeve (A19) is arranged on the front side of the support platform (A19), a transition wheel (A19) is installed below the support platform (A19), a chain wheel (A19) is arranged on one side, which is close to the support platform (A19), and a vertical plate (A19) is provided with a linkage gears (A19), and a chain wheels (19) are installed above a19), the vertical plate (A25) is positioned on the right side of the base (A01), a supporting rod (A27) is fixed above the front side of the rotating sleeve (A20), and a protective tube (A28) is arranged above the supporting rod (A27); the middle outer wall of the support rod (A03) is inlaid with a ball (A04), the outer side of the ball (A04) is fixed with a cross frame (A05), the outer side of the cross frame (A05) is provided with an adjusting frame (A06), and the size of the cross frame (A05) is matched with that of the adjusting frame (A06); a connecting rod (A07) is fixed between the adjusting frames (A06), an outer guard ring (A08) is arranged in the middle of the connecting rod (A07), a condensing lens (A09) is installed in the middle of the outer guard ring (A08), and the outer guard ring (A08) is rotatably connected with the adjusting frames (A06) through the connecting rod (A07); the fixing rods (A14) are connected through a rack rod (A17), and two groups of fixing rods (A14) are arranged in each 3 groups, and the two groups are symmetrical about the vertical central line of the support rod (A03); the upper portion of pillar (A28) is provided with power (A29), and the left side of power (A29) is installed and is had photoelectric sensor (A30), photoelectric sensor (A30) are provided with 3 along the vertical direction of pillar (A28) altogether, and each photoelectric sensor (A30) all passes through wire (A31) and power (A29) electric connection.

2. The calibration device for medical radiation according to claim 1, wherein: the inside of support (A11) is provided with spring (A12), and support (A11) pass through spring (A12) and telescopic link (A10) elastic connection, the junction of support (A11) and telescopic link (A10) evenly is provided with foam-rubber cushion (A13), and the axis of support (A11) coincides with the axis of telescopic link (A10).

3. A medical radiation calibration device according to any one of claims 1-2, wherein: the middle of the rotating sleeve (A20) is uniformly provided with steel balls (A21), the traction chain (A22) is in sliding connection with the rotating sleeve (A20) through the steel balls (A21), the rotating sleeve (A20) is equidistantly arranged in 3 along the horizontal direction of the supporting table (A19), and the rotating sleeve (A20) is equal in size.