Dual-energy X-ray bone mineral density instrument equipment

Abstract

The utility model relates to the technical field of medical instruments, in particular to dual-energy X-ray bone mineral density instrument equipment. Dual-energy X-ray bone mineral density instrument equipment is characterized by comprising a bed frame assembly, a scanning frame, an X-ray source movement assembly and a detector movement assembly, the bed frame assembly is of a basic supporting structure. The scanning frame is approximately of an annular structure, and the scanning frame is installed on the bed frame assembly in an annular sleeving mode. The X-ray source movement assembly is mounted at the top of the scanning frame; the detector movement assembly is mounted at the bottom of the scanning frame; the X-ray source movement assembly and the detector movement assembly are arranged on the upper side and the lower side of the bed frame assembly respectively. Compared with the prior art, the bone mineral density measuring device has the advantages that the relative position between the X-ray source and the detector can be conveniently adjusted on the design structure, the bone mineral density of the whole body of a human body can be rapidly and efficiently measured on the whole function, and the practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, and specifically relates to a dual-energy X-ray bone densitometer device. Background Art

[0002] A bone densitometer is a medical device for measuring data related to human bone minerals. Among them, the measurement result obtained by the dual-energy X-ray measurement method is the most accurate and is the internationally recognized best standard.

[0003] The dual-energy X-ray bone density measurement method is that after X-rays of two energies, high energy and low energy, pass through the human body, the receiving module obtains two different data. After the computer compares and processes the received data, a reference value of the human bone mineral content is obtained. The dual-energy X-ray bone densitometer has high test accuracy, is convenient and fast, and has little impact on the human body. At present, the penetration rate of dual-energy X-ray bone densitometers in China is not high. Most of them have a small measurement range, a slow measurement speed, and cannot perform whole-body scans. Summary of the Invention

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a dual-energy X-ray bone densitometer device, which can perform large-range whole-body scans of the human body and quickly and accurately measure the bone density at any position of the human body.

[0005] To achieve the above object, a dual-energy X-ray bone densitometer device is designed, which is characterized in that: it includes a bed frame assembly, a scanning frame, an X-ray source movement assembly, and a detector movement assembly; the bed frame assembly is a basic support structure; the scanning frame is approximately a ring structure, and the scanning frame is sleeved on the bed frame assembly; the X-ray source movement assembly is installed on the top of the scanning frame; the detector movement assembly is installed on the bottom of the scanning frame; the X-ray source movement assembly and the detector movement assembly are respectively located on the upper and lower sides of the bed frame assembly.

[0006] The bed frame assembly includes a first driving mechanism and a first guiding structure. A first driving mechanism is provided on one side of the bed frame assembly, and the first driving mechanism is inside one side of the bed frame assembly. The first driving mechanism is connected to the scanning frame; first guiding structures are provided on both the left and right sides of the bed frame assembly, and the first guiding structures are connected to the scanning frame; the first driving mechanism drives the scanning frame to reciprocate along the length direction of the bed frame assembly on the first guiding structure.

[0007] Rotating adjustment pins are symmetrically arranged front and back on the scanning frame, and the X-ray source movement assembly rotates and adjusts a certain angle on the scanning frame through the rotating adjustment pins.

[0008] The described X-ray source motion assembly includes an X-ray source, a second guiding member, a second driving mechanism, a positioning laser lamp, and a collimation assembly. Second guiding members are provided on both sides of the top of the gantry. The X-ray source is installed on the second guiding member; the second driving mechanism is installed on the top of the gantry; the second driving mechanism drives the X-ray source to reciprocate along the width direction of the bed assembly through the second guiding member; a collimation assembly is installed at the outlet position of the X-ray source.

[0009] The described collimation assembly includes a bottom plate, a collimation shutter, a collimation motor, a collimation guide rail, tungsten sheets, and tungsten sheet adjustment screws. The bottom plate is connected to the bottom of the X-ray source, and the collimation motor is installed on the bottom plate. A collimation guide rail is provided on the bottom plate on one side of the collimation motor, and the collimation shutter is slidably connected to the collimation guide rail, and the collimation motor drives the collimation shutter to slide on the collimation guide rail; tungsten sheets are provided on the back of the bottom plate, and the tungsten sheets are moved back and forth through the tungsten sheet adjustment screws.

[0010] Two positioning laser lamps are installed on the bottom plate, and the two positioning laser lamps are installed on the bottom plate in parallel and perpendicular directions respectively.

[0011] The described detector motion assembly includes a detector, a third guiding member, a third driving mechanism, and a detector bracket. The third guiding member is provided at the bottom of the gantry, the detector bracket is slidably connected to the third guiding member, and the detector is installed on the detector bracket; a third driving mechanism is provided on one side of the third guiding member; the third driving mechanism drives the detector on the detector bracket to reciprocate along the width direction of the bed assembly.

[0012] Translation pins and rotation pins are respectively provided on the detector bracket on one side of the detector. By rotating the translation pin, the detector moves and adjusts in a direction perpendicular to the third guiding member; by rotating the rotation pin, the detector forms a certain angle with the third guiding member.

[0013] The X-rays of the X-ray source and the detector are perpendicular to the first guiding structure within the bed assembly; the width of the detector is less than or equal to the width dimension of the bed assembly.

[0014] Compared with the prior art, the advantages of the present utility model are that the relative position between the X-ray source and the detector can be conveniently adjusted in terms of the design structure, and the overall function can quickly and efficiently achieve the bone density measurement of the whole body parts of the human body, with strong practicability. Brief Description of the Drawings

[0015] Figure 1 It is a schematic structural diagram of the dual-energy X-ray bone densitometer of the present utility model.

[0016] Figure 2 It is a single-side schematic diagram of the bed assembly.

[0017] Figure 3 It is a schematic diagram of the overall structure of the gantry.

[0018] Figure 4 and Figure 5 is a schematic structural diagram of the collimation assembly.

[0019] Figure 6 is an assembly schematic diagram of the detector and the detector bracket.

[0020] Refer to Figures 1 to 6 , 10 is the bed frame assembly; 101 is the first driving mechanism; 102 is the first guiding structure; 20 is the scanning frame; 201 is the rotation adjustment screw; 30 is the X-ray source movement assembly; 301 is the X-ray source; 302 is the second guiding member; 303 is the second driving mechanism; 304 is the positioning laser lamp; 310 is the collimation assembly; 311 is the collimation shutter; 312 is the collimation motor; 313 is the collimation guide rail; 314 is the tungsten sheet; 315 is the tungsten sheet adjustment screw; 316 is the bottom plate; 40 is the detector movement assembly; 401 is the detector; 402 is the third guiding member; 403 is the third driving mechanism; 410 is the detector bracket; 411 is the translation screw; 412 is the rotation screw. Detailed implementation manners

[0021] The following further describes the present utility model with reference to the accompanying drawings.

[0022] As shown in Figure 1 , Figure 2 , a dual-energy X-ray bone densitometer device includes a bed frame assembly 10, a scanning frame 20, an X-ray source movement assembly 30, and a detector movement assembly 40; the bed frame assembly 10 is a basic support structure for supporting the scanning frame 20, and the patient to be measured lies flat on the bed board of the bed frame assembly 10; the scanning frame 20 is approximately a ring structure, and the scanning frame 20 is installed on the bed frame assembly 10 in a ring-sleeved manner; the X-ray source movement assembly 30 is installed on the top of the scanning frame 20; the detector movement assembly 40 is installed on the bottom of the scanning frame 20; the X-ray source movement assembly 30 and the detector movement assembly 40 are respectively located on the upper and lower sides of the bed frame assembly 10.

[0023] The bed frame assembly 10 includes a first driving mechanism and a first guiding structure. A first driving mechanism 101 is provided on one side of the bed frame assembly 10, and the first driving mechanism 101 is inside one side of the bed frame assembly 10. The first driving mechanism 101 is connected to the scanning frame 20; first guiding structures 102 are provided on both the left and right sides of the bed frame assembly 10, and the first guiding structures 102 are connected to the scanning frame 20; the first driving mechanism 101 drives the scanning frame 20 to reciprocate along the length direction of the bed frame assembly 10 on the first guiding structure 102, so as to realize the full-position detection of the patient to be measured from head to toe.

[0024] As shown in Figure 3As shown in the figure, rotation adjustment pins 201 that are symmetrically arranged front and back are provided on the scanning frame 20. The X-ray source movement assembly 30 rotates and adjusts by a certain angle on the scanning frame 20 through the rotation adjustment pins 201.

[0025] As Figures 3 to 5 shown, the X-ray source movement assembly 30 includes an X-ray source, a second guide member, a second drive mechanism, a positioning laser lamp, and a collimation assembly. Second guide members 302 are provided on both sides of the top of the scanning frame 20, and the X-ray source 301 is installed on the second guide members 302; the second drive mechanism 303 is installed on the top of the scanning frame 20; the second drive mechanism 303 drives the X-ray source 301 and reciprocates along the width direction of the bed frame assembly 10 through the second guide members 302; a collimation assembly 310 is installed at the outlet position of the X-ray source 301, and the collimation assembly 310 is used to limit the shape required for the X-ray work of the X-ray source 301.

[0026] The collimation assembly 310 includes a bottom plate, a collimation flap, a collimation motor, a collimation guide rail, a tungsten sheet, and a tungsten sheet adjustment pin. The bottom plate 316 is connected to the bottom of the X-ray source 301, and the collimation motor 312 is installed on the bottom plate 316. A collimation guide rail 313 is provided on the bottom plate 316 on one side of the collimation motor 312, and the collimation flap 311 is slidably connected to the collimation guide rail 313, and the collimation motor 312 drives the collimation flap 311 to slide on the collimation guide rail 313; a tungsten sheet 314 is provided on the back of the bottom plate 316, a long slot is opened in the middle of the tungsten sheet 314, and the X-ray passes through the long slot and emits. The tungsten sheet 314 is adjusted by the tungsten sheet adjustment pin 315. By rotating the tungsten sheet adjustment pin 315, the tungsten sheet 314 can be moved back and forth to adjust the distance between the X-ray emitted by the X-ray source 301 and the second guide member 302, that is, to adjust the position of the focus of the X-ray source 301 to be centered with the center of the detector 401.

[0027] Two positioning laser lamps 304 are installed on the bottom plate 316. The two positioning laser lamps 304 are respectively installed on the bottom plate 316 in parallel and perpendicular directions, forming mutually perpendicular cross positioning lines on the bed frame assembly 10. The center intersection of the cross lines is the center of the X-ray on the bed board, which is convenient for the rapid positioning of the patient to be measured and provides conditions for rapid and accurate scanning.

[0028] As Figure 6 shown, the detector movement assembly 40 includes a detector, a third guide member, a third drive mechanism, and a detector bracket. A third guide member 402 is provided at the bottom of the scanning frame 20, and the detector bracket 410 is slidably connected to the third guide member 402. The detector 401 is installed on the detector bracket 410; a third drive mechanism 403 is provided on one side of the third guide member 402; the third drive mechanism 403 drives the detector 401 on the detector bracket 410 to reciprocate along the width direction of the bed frame assembly 10.

[0029] On the detector bracket 410 on one side of the detector 401, a translation pin 411 and a rotation pin 412 are respectively provided. By rotating the translation pin 411, the detector 401 moves and adjusts in a direction perpendicular to the third guide member 402; by rotating the rotation pin 412, the detector 401 forms a certain angle with the third guide member 402.

[0030] Under the combined adjustment actions of the rotation adjustment pin 201, the tungsten sheet adjustment pin 315, the translation pin 411, and the rotation pin 412, the X-ray motion assembly 30 and the detector motion assembly 40 can prompt the X-ray emitted by the X-ray source 301 to be perfectly centered and matched with the detector 401; and the X-ray of the X-ray source 301 and the detector 401 are perpendicular to the first guide structure 102 within the bed frame assembly 10; the width of the detector 401 is less than or equal to the width dimension of the bed frame assembly 10, that is, the detector 401 covers the entire scanning range in the width direction of the bed frame assembly 10.

[0031] When the patient to be measured lies on the bed frame assembly, turn on the positioning laser lamp, quickly adjust the relative positions of the X-ray source and the detector, and at the same time the scanning frame can be advanced forward at a specified speed. During the scanning process, the X-ray source and the detector need to move from one side of the bed frame to the other side. Depending on the different scanning algorithms, the X-ray source and the detector can move at the same speed or at different speeds; when the movement range of the X-ray source is limited, control the collimation shutter to move to the specified position at the specified speed as needed to expand the scanning range.

Claims

1. A dual-energy X-ray bone densitometer device, characterized in that: It includes a bed frame assembly (10), a gantry (20), an X-ray source movement assembly (30), and a detector movement assembly (40); The described bed frame assembly (10) is a basic support structure; The described gantry (20) is approximately a ring structure, and the gantry (20) is sleeved on the bed frame assembly (10); The described X-ray source movement assembly (30) is installed on the top of the gantry (20); The described detector movement assembly (40) is installed on the bottom of the gantry (20); The X-ray source movement assembly (30) and the detector movement assembly (40) are respectively located on the upper and lower sides of the bed frame assembly (10); The described X-ray source movement assembly (30) includes an X-ray source, a second guide, a second drive mechanism, a positioning laser lamp, and a collimation assembly. Second guides (302) are provided on both sides of the top of the gantry (20), and the X-ray source (301) is installed on the second guides (302); The second drive mechanism (303) is installed on the top of the gantry (20); The second drive mechanism (303) drives the X-ray source (301) to reciprocate along the width direction of the bed frame assembly (10) through the second guides (302); A collimation assembly (310) is installed at the outlet position of the X-ray source (301); The described collimation assembly (310) includes a bottom plate, a collimation shutter, a collimation motor, a collimation guide rail, a tungsten sheet, and a tungsten sheet adjusting screw. The bottom plate (316) is connected to the bottom of the X-ray source (301), the collimation motor (312) is installed on the bottom plate (316), a collimation guide rail (313) is provided on the bottom plate (316) on one side of the collimation motor (312), the collimation shutter (311) is slidably connected to the collimation guide rail (313), and the collimation motor (312) drives the collimation shutter (311) to slide on the collimation guide rail (313); A tungsten sheet (314) is provided on the back of the bottom plate (316), and the tungsten sheet (314) is moved back and forth through the tungsten sheet adjusting screw (315); The described detector movement assembly (40) includes a detector, a third guide, a third drive mechanism, and a detector bracket. A third guide (402) is provided at the bottom of the gantry (20), the detector bracket (410) is slidably connected to the third guide (402), and the detector (401) is installed on the detector bracket (410); A third drive mechanism (403) is provided on one side of the third guide (402); The third drive mechanism (403) drives the detector (401) on the detector bracket (410) to reciprocate along the width direction of the bed frame assembly (10).

2. The dual-energy X-ray bone densitometer device according to claim 1, wherein: The described bed frame assembly (10) includes a first driving mechanism and a first guiding structure. A first driving mechanism (101) is provided on one side of the bed frame assembly (10), and the first driving mechanism (101) is inside one side of the bed frame assembly (10). The first driving mechanism (101) is connected to the scanning frame (20). First guiding structures (102) are provided on both the left and right sides of the bed frame assembly (10), and the first guiding structures (102) are connected to the scanning frame (20). The first driving mechanism (101) drives the scanning frame (20) to reciprocate along the length direction of the bed frame assembly (10) on the first guiding structure (102).

3. A dual-energy X-ray bone densitometer device according to claim 1, characterized in that: Rotating adjustment pins (201) symmetrically arranged front and back are provided on the described scanning frame (20). The X-ray source moving assembly (30) rotates and adjusts a certain angle on the scanning frame (20) through the rotating adjustment pins (201).

4. A dual-energy X-ray bone densitometer device according to claim 1, characterized in that: Two positioning laser lights (304) are installed on the bottom plate (316), and the two positioning laser lights (304) are respectively installed on the bottom plate (316) parallel and perpendicular to each other.

5. A dual-energy X-ray bone densitometer device according to claim 1, characterized in that: A translation pin (411) and a rotation pin (412) are respectively provided on the detector support (410) on one side of the detector (401). By rotating the translation pin (411), the detector (401) moves and adjusts in a direction perpendicular to the third guiding member (402). By rotating the rotation pin (412), the detector (401) forms a certain angle with the third guiding member (402).

6. The dual-energy X-ray bone densitometer device according to claim 1, characterized in that: The X-ray of the X-ray source (301) and the detector (401) are perpendicular to the first guiding structure (102) inside the bed frame assembly (10). The width of the detector (401) is less than or equal to the width dimension of the bed frame assembly (10).

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