Upper limb fixing device for scanning

Abstract

The utility model provides an upper limb fixing device for scanning, belongs to the technical field of upper limb fixing, and aims to solve the problem that an arm of a patient may move during enhanced CT (Computed Tomography) scanning. Comprising a mounting frame; a first supporting assembly is fixedly arranged at the top of the supporting disc; first fixing structures are installed on the two sides of the arm supporting plate, a second supporting assembly is arranged on the outer side of the arm supporting plate, and a second fixing structure is fixedly arranged on the top of the second supporting assembly. An adjusting screw rod and a guide rod are arranged, so that the palm supporting plate can move horizontally; the total supporting length of the arm supporting plate and the palm supporting plate can be adjusted according to the specific length of the arm of the patient; meanwhile, by means of the first fixing structure and the second fixing structure, the arm and the palm of the patient can be fixed at the same time, and then the arm can be restrained and fixed according to the specific length of the arm of the patient; and the phenomenon of arm movement can be prevented when the arm of a patient is subjected to enhanced CT (Computed Tomography) scanning.

Description

Technical Field

[0001] The utility model belongs to the technical field of upper limb fixation, and more specifically, relates to an upper limb fixation device for scanning. Background Art

[0002] Enhanced CT refers to a method of focusing on the suspicious areas found after intravenous injection of contrast agent based on plain CT scan, thereby improving the accuracy of diagnosis. Currently, when performing enhanced CT scans on the patient's upper limbs, the patient is required to lie supine on the examination bed with both hands stretched behind the head, and the patient's upper limbs are required to remain still for about 10 minutes.

[0003] Currently, many patients find it difficult to keep their upper limbs still for 10 minutes during enhanced CT scans. Consequently, the arm may move during enhanced CT scans, blurring the scan image or generating motion artifacts and ghosting, which may affect diagnostic results. Consequently, an upper limb fixation device is needed to support and fix the arm to prevent movement during scanning. Utility Model Content

[0004] In order to solve the above technical problems, the present invention provides an upper limb fixation device for scanning, so as to solve the problem raised in the above background technology that the arm may move during enhanced CT scanning of the patient's arm, causing blurred scan images or motion artifacts and ghosting, which may affect the diagnosis results.

[0005] The utility model provides an upper limb fixation device for scanning, which is achieved by the following specific technical means:

[0006] A device for fixing an upper limb for scanning, comprising a mounting frame; the mounting frame is configured to be L-shaped, with a mounting hole formed at the bottom of one side of the mounting frame, and an adjustment shaft rotatably disposed within the mounting frame; a worm gear is fixedly disposed on the outside of the bottom end of the adjustment shaft, and a support plate is fixedly disposed on the top end of the adjustment shaft; balls are rotatably disposed within the top side of the mounting frame, and the balls are arranged in an annular array, with the tops of the balls abutting against the bottom of the support plate; a worm is rotatably disposed at the bottom of the mounting frame, a knob is fixedly disposed on the top end of the worm, and the worm is meshed with the worm gear;

[0007] A first supporting assembly is fixedly provided on the top of the support plate, and the first supporting assembly includes: an arm support plate and a cushion A; one end of the arm support plate is fixedly provided on the top of the support plate; the cushion A is fixedly provided on the top of the arm support plate, and the top of the cushion A is arranged in an arc shape; a first fixing structure is installed on both sides of the arm support plate, and a second supporting assembly is provided on the outside of the arm support plate, and a second fixing structure is fixedly provided on the top of the second supporting assembly.

[0008] In at least some embodiments, the first support assembly also includes: an adjusting screw and a synchronous wheel; the adjusting screw is rotatably arranged on both sides of the arm support plate, and a knob is fixedly arranged on the top of the adjusting screw, and two groups of adjusting screws are symmetrically arranged; two groups of synchronous wheels are arranged, and the two groups of synchronous wheels are respectively fixedly arranged on the outside of the two groups of adjusting screws, and a synchronous belt device is installed between the two groups of synchronous wheels.

[0009] In at least some embodiments, the first support assembly also includes: an adjustment seat, a connecting seat and a fixed shaft; the adjustment seat is arranged on the outside of the adjustment screw through a threaded connection, and the adjustment seat is slidably arranged on the outside of the arm support plate through a dovetail groove; the connecting seat is fixedly arranged on the top of the adjustment seat; the fixed shaft is fixedly arranged on the inner side of the top of the connecting seat, and the fixed shaft, the connecting seat and the adjustment seat are symmetrically arranged in two groups.

[0010] In at least some embodiments, the first fixing structure includes: a strap A, a connecting ring, a strap B, a Velcro hook surface and a Velcro fleece surface; one end of the strap A is movably arranged on the outside of a set of fixed shafts; the connecting ring is movably arranged on the inside of the other end of the strap A; the end of the strap B is movably arranged on the outside of another set of fixed shafts, and the strap B can be folded in half through the connecting ring; the Velcro hook surface is sewn to the bottom outside of the strap B; the Velcro fleece surface is sewn to the top outside of the strap B, and the Velcro fleece surface is bonded to the Velcro hook surface.

[0011] In at least some embodiments, the second support assembly includes: an adjusting screw, a palm rest, a guide rod and a soft pad B; the adjusting screw is arranged inside the arm rest through a threaded connection, and a knob is fixedly provided on the top of the adjusting screw; the palm rest is rotatably provided on the outside of the adjusting screw; the guide rods are fixedly provided on both sides of the palm rest, and the guide rods are slidably provided inside the arm rest; the soft pad B is fixedly provided on the top of the palm rest.

[0012] In at least some embodiments, the second support assembly further includes: a threaded rod, a threaded seat, a fixed rod and a guide seat; the threaded rod is rotatably arranged on one side of the palm support plate, and a knob is fixedly arranged on the top of the threaded rod; the threaded seat is arranged on the outside of the threaded rod through a threaded connection; the fixed rod is fixedly arranged on the other side of the palm support plate; and the guide seat is slidably arranged on the outside of the fixed rod.

[0013] In at least some embodiments, the second fixing structure includes: a vertical rod, a horizontal plate and a fixed pad; the number of vertical rods is set to two groups, and the two groups of vertical rods are fixedly set on the top of the guide seat and the threaded seat respectively; the horizontal plate is slidably set between the two groups of vertical rods, and a spring member is set between the top of the horizontal plate and the top of the vertical rod; the fixed pad is fixedly set at the bottom of the horizontal plate, and the bottom of the fixed pad is provided with grooves arranged in a straight line.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. In the present invention, the palm support plate can be moved horizontally by providing an adjustment screw and a guide rod; thus, the total support length of the arm support plate and the palm support plate can be adjusted according to the specific length of the patient's arm; this is beneficial for supporting the patient's arm according to the specific length of the patient's arm; while utilizing the first fixing structure and the second fixing structure, the patient's arm and palm can be fixed at the same time, and thus can be constrained and fixed according to the specific length of the patient's arm; this is beneficial for preventing the movement of the arm during enhanced CT scanning of the patient's arm, which may cause blurred scan images or motion artifacts or ghost images; and this is beneficial for ensuring the accuracy of the diagnostic results.

[0016] 2. In the present invention, by providing a synchronous wheel, a synchronous belt device and an adjusting screw, the adjusting seat can drive the first fixed structure to move horizontally; by utilizing the threaded rod and the threaded seat and the fixed rod and the guide seat, the guide seat and the threaded seat can drive the second fixed structure to move horizontally; and thus the fixed positions of the first fixed structure and the second fixed structure can be adjusted, which is beneficial to prevent the first fixed structure and the second fixed structure from overlapping with the key scanning position when scanning the patient's upper limbs, thereby affecting the scanning imaging.

[0017] 3. In the present invention, by providing a worm gear and a worm, the adjustment shaft can drive the arm support plate to rotate through the support plate, and then the direction of the arm support plate and the palm support plate can be adjusted according to the inclination angle of the patient's arm; it is beneficial to fix the patient's arm while ensuring the patient's comfort; and the practicality of the upper limb fixation device is enhanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0019] Figure 2 It is a schematic diagram of the upper surface structure of the mounting bracket of the utility model.

[0020] Figure 3 It is a schematic diagram of the lower surface structure of the mounting bracket of the utility model.

[0021] Figure 4 It is a schematic diagram of the lower surface structure of the arm support plate and the palm support plate of the utility model.

[0022] Figure 5 It is a schematic diagram of the connection structure between the second supporting assembly and the second fixing structure of the utility model.

[0023] Figure 6 It is a schematic diagram of the connection structure between the first supporting assembly and the first fixing structure of the utility model.

[0024] In the figure, the corresponding relationship between the component names and the drawing numbers is as follows:

[0025] 1. Mounting frame; 101. Adjusting shaft; 102. Worm gear; 103. Worm; 104. Support plate; 105. Ball bearing;

[0026] 2. First support assembly; 201. Arm support plate; 202. Cushion A; 203. Adjustment screw; 204. Synchronous wheel; 205. Adjustment seat; 206. Connecting seat; 207. Fixed shaft;

[0027] 3. First fixing structure; 301. Strap A; 302. Connecting ring; 303. Strap B; 304. Velcro hook surface; 305. Velcro loop surface;

[0028] 4. Second support assembly; 401. Adjusting screw; 402. Palm support plate; 403. Guide rod; 404. Cushion B; 405. Threaded rod; 406. Threaded seat; 407. Fixed rod; 408. Guide seat;

[0029] 5. Second fixed structure; 501. Vertical rod; 502. Horizontal board; 503. Fixed pad. DETAILED DESCRIPTION

[0030] The following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings and examples.

[0031] Example 1:

[0032] As attached Figure 1 To the attached Figure 6 As shown:

[0033] The utility model provides an upper limb fixing device for scanning, comprising a mounting frame 1; the mounting frame 1 is arranged in an L shape, and a mounting hole is opened at the bottom of one side of the mounting frame 1, and an adjusting shaft 101 is rotatably arranged inside the mounting frame 1; a worm gear 102 is fixedly arranged on the outer side of the bottom end of the adjusting shaft 101, and a support plate 104 is fixedly arranged on the top of the adjusting shaft 101; a ball 105 is rotatably arranged inside the top side of the mounting frame 1, and the ball 105 is arranged in an annular array, and the top of the ball 105 is in contact with the bottom of the support plate 104; a worm 103 is rotatably arranged at the bottom of the mounting frame 1, and a knob is fixedly arranged on the top of the worm 103, and the worm 103 is meshed with the worm gear 102; a first supporting assembly 2 is fixedly arranged on the top of the support plate 104, and The first support component 2 includes: an arm support plate 201 and a cushion A202; one end of the arm support plate 201 is fixedly arranged on the top of the support plate 104; the cushion A202 is fixedly arranged on the top of the arm support plate 201, and the top of the cushion A202 is arranged in an arc shape; a first fixed structure 3 is installed on both sides of the arm support plate 201, and a second support component 4 is arranged on the outside of the arm support plate 201, and a second fixed structure 5 is fixedly arranged on the top of the second support component 4; its specific function is: by providing a worm gear 102 and a worm 103, the adjustment shaft 101 can drive the arm support plate 201 to rotate through the support plate 104, and then the direction of the arm support plate 201 and the palm support plate 402 can be adjusted according to the inclination angle of the patient's arm.

[0034] Example 2:

[0035] As attached Figure 4 To the attached Figure 6As shown: On the basis of the first embodiment, the first support assembly 2 further includes: an adjusting screw 203, a synchronous wheel 204, an adjusting seat 205, a connecting seat 206 and a fixed shaft 207; the adjusting screw 203 is rotatably arranged on both sides of the arm support plate 201, and a knob is fixedly provided on the top of the adjusting screw 203, and two groups of adjusting screws 203 are symmetrically arranged; two groups of synchronous wheels 204 are provided, and the two groups of synchronous wheels 204 are respectively fixedly provided on the outside of the two groups of adjusting screws 203, and a synchronous belt device is installed between the two groups of synchronous wheels 204; The adjusting seat 205 is arranged on the outside of the adjusting screw rod 203 through a threaded connection, and the adjusting seat 205 is slidably arranged on the outside of the arm support plate 201 through a dovetail groove; the connecting seat 206 is fixedly arranged on the top of the adjusting seat 205; the fixed shaft 207 is fixedly arranged on the inner side of the top of the connecting seat 206, and the fixed shaft 207, the connecting seat 206 and the adjusting seat 205 are symmetrically arranged in two groups; the second supporting assembly 4 includes: an adjusting screw 401, a palm support plate 402, a guide rod 403, a soft pad B404, a threaded rod 405, a threaded seat 406, a fixed The fixed rod 407 and the guide seat 408; the adjusting screw 401 is arranged inside the arm support plate 201 through a threaded connection, and a knob is fixedly provided on the top of the adjusting screw 401; the palm support plate 402 is rotatably arranged on the outside of the adjusting screw 401; the guide rod 403 is fixedly provided on both sides of the palm support plate 402, and the guide rod 403 is slidably provided inside the arm support plate 201; the soft pad B404 is fixedly provided on the top of the palm support plate 402; the threaded rod 405 is rotatably provided on one side of the palm support plate 402, and a knob is fixedly provided on the top of the threaded rod 405; the screw The threaded seat 406 is arranged on the outside of the threaded rod 405 through a threaded connection; the fixed rod 407 is fixedly arranged on the other side of the palm support plate 402; the guide seat 408 is slidably arranged on the outside of the fixed rod 407; its specific function is: by providing a synchronous wheel 204 and a synchronous belt device and an adjusting screw rod 203, the adjusting seat 205 can drive the first fixed structure 3 to move horizontally; by utilizing the threaded rod 405 and the threaded seat 406 and the fixed rod 407 and the guide seat 408, the guide seat 408 and the threaded seat 406 can drive the second fixed structure 5 to move horizontally.

[0036] Example 3:

[0037] As attached Figure 4 To the attached Figure 6As shown: Based on the first and second embodiments, the first fixing structure 3 includes: a strap A301, a connecting ring 302, a strap B303, a Velcro hook surface 304 and a Velcro fleece surface 305; one end of the strap A301 is movably arranged on the outside of a set of fixed shafts 207; the connecting ring 302 is movably arranged on the inside of the other end of the strap A301; the end of the strap B303 is movably arranged on the outside of another set of fixed shafts 207, and the strap B303 can be folded in half through the connecting ring 302; the Velcro hook surface 304 is sewn to the bottom of the outer side of the strap B303; the Velcro fleece surface 305 is sewn to the top of the outer side of the strap B303, and the Velcro fleece surface 305 is bonded to the Velcro hook surface 304 ; The second fixed structure 5 includes: a vertical rod 501, a horizontal plate 502 and a fixed pad 503; the number of vertical rods 501 is set to two groups, and the two groups of vertical rods 501 are fixedly set on the top of the guide seat 408 and the threaded seat 406 respectively; the horizontal plate 502 is slidably set between the two groups of vertical rods 501, and a spring member is set between the top of the horizontal plate 502 and the top of the vertical rod 501; the fixed pad 503 is fixedly set at the bottom of the horizontal plate 502, and the bottom of the fixed pad 503 is arranged in a straight line with grooves; its specific function is: using the first fixed structure 3 and the second fixed structure 5, the patient's arm and palm can be fixed at the same time, and then the patient's arm can be constrained and fixed according to the specific length of the arm.

[0038] The specific usage and function of this embodiment are as follows:

[0039] When the patient is lying on his back on the examination bed, the patient's head rests on the examination pillow; the patient stretches his arms behind the head; the worm 103 is rotated, and the worm 103 drives the adjusting shaft 101 to rotate through the worm gear 102, and the adjusting shaft 101 drives the arm support 201 to rotate through the support plate 104, and the arm support 201 rotates stably with the support plate 104 and the ball 105, so that the patient's arm is placed above the soft cushion A202; then the adjusting screw 401 is rotated, and the adjusting screw 401 drives the palm support 402 to move horizontally through the guide rod 403, so that the patient's palm is placed above the soft cushion B404; then the strap B303 is passed through the connecting ring 302 and folded in half, so that the Velcro hook surface 304 is adhered to the Velcro fur surface 305, thereby The strap A301 and the strap B303 fix the patient's arm; at the same time, the patient's fingers are placed on the inner side of the bottom groove of the fixing pad 503, and the fixing pad 503 applies a certain pressure to the patient's hand through the horizontal plate 502 and the spring part, so that the patient's hand is constrained and fixed on the soft pad B404; rotate one set of adjusting screw rods 203, and the two sets of adjusting screw rods 203 rotate simultaneously through the synchronous wheel 204 and the synchronous belt device, so that the two sets of adjusting screw rods 203 drive the two sets of connecting seats 206 and the fixed shaft 207 to move horizontally at the same time through the two sets of adjusting seats 205, so that the horizontal position of the first fixed structure 3 is adjusted; rotate the threaded rod 405, and the threaded rod 405 drives the horizontal plate 502 to move horizontally through the threaded seat 406 and the fixed rod 407 and the guide seat 408 and the vertical rod 501, so that the horizontal position of the fixing pad 503 is adjusted; and thus the fixed positions of the first fixed structure 3 and the second fixed structure 5 can be adjusted according to actual needs.

Claims

1. An upper limb fixation device for scanning, characterized in that: include: The mounting frame (1) is configured to be L-shaped, and a mounting hole is provided at the bottom of one side of the mounting frame (1), and an adjusting shaft (101) is rotatably provided inside the mounting frame (1); a worm gear (102) is fixedly provided on the outside of the bottom end of the adjusting shaft (101), and a support plate (104) is fixedly provided on the top of the adjusting shaft (101); balls (105) are rotatably provided inside the top side of the mounting frame (1), and the balls (105) are arranged in a ring array, and the top of the balls (105) is in contact with the bottom of the support plate (104); a worm (103) is rotatably provided at the bottom of the mounting frame (1), and a knob is fixedly provided on the top of the worm (103), and the worm (103) is meshed with the worm gear (102); A first support assembly (2) is fixedly provided on the top of the support plate (104), and the first support assembly (2) comprises: an arm support plate (201) and a soft pad A (202); one end of the arm support plate (201) is fixedly provided on the top of the support plate (104); the soft pad A (202) is fixedly provided on the top of the arm support plate (201), and the top of the soft pad A (202) is arranged in an arc shape; first fixing structures (3) are installed on both sides of the arm support plate (201), and a second support assembly (4) is provided on the outside of the arm support plate (201), and a second fixing structure (5) is fixedly provided on the top of the second support assembly (4).

2. The upper limb fixation device for scanning according to claim 1, characterized in that: The first support assembly (2) further comprises: an adjusting screw (203) and a synchronous wheel (204); the adjusting screw (203) is rotatably arranged on both sides of the arm support plate (201), and a knob is fixedly arranged on the top of the adjusting screw (203), and two groups of adjusting screws (203) are symmetrically arranged; two groups of synchronous wheels (204) are provided, and the two groups of synchronous wheels (204) are respectively fixedly arranged on the outsides of the two groups of adjusting screws (203), and a synchronous belt device is installed between the two groups of synchronous wheels (204).

3. The upper limb fixation device for scanning according to claim 2, characterized in that: The first support assembly (2) further comprises: an adjustment seat (205), a connecting seat (206) and a fixed shaft (207); the adjustment seat (205) is arranged on the outside of the adjustment screw rod (203) through a threaded connection, and the adjustment seat (205) is slidably arranged on the outside of the arm support plate (201) through a dovetail groove; the connecting seat (206) is fixedly arranged on the top of the adjustment seat (205); the fixed shaft (207) is fixedly arranged on the inner side of the top of the connecting seat (206), and the fixed shaft (207), the connecting seat (206) and the adjustment seat (205) are all symmetrically arranged in two groups.

4. The upper limb fixation device for scanning according to claim 3, characterized in that: The first fixing structure (3) comprises: a strap A (301), a connecting ring (302), a strap B (303), a Velcro hook surface (304) and a Velcro fleece surface (305); one end of the strap A (301) is movably arranged outside a set of fixed shafts (207); the connecting ring (302) is movably arranged inside the other end of the strap A (301); the end of the strap B (303) is movably arranged outside the other set of fixed shafts (207), and the strap B (303) can pass through the connecting ring (302) and be folded in half; the Velcro hook surface (304) is sewn to the bottom outside of the strap B (303); the Velcro fleece surface (305) is sewn to the top outside of the strap B (303), and the Velcro fleece surface (305) is bonded to the Velcro hook surface (304).

5. The upper limb fixation device for scanning according to claim 1, characterized in that: The second support assembly (4) comprises: an adjusting screw (401), a palm support plate (402), a guide rod (403) and a soft pad B (404); the adjusting screw (401) is arranged inside the arm support plate (201) through a threaded connection, and a knob is fixedly arranged on the top of the adjusting screw (401); the palm support plate (402) is rotatably arranged outside the adjusting screw (401); the guide rod (403) is fixedly arranged on both sides of the palm support plate (402), and the guide rod (403) is slidably arranged inside the arm support plate (201); and the soft pad B (404) is fixedly arranged on the top of the palm support plate (402).

6. The upper limb fixation device for scanning according to claim 5, characterized in that: The second support assembly (4) further comprises: a threaded rod (405), a threaded seat (406), a fixed rod (407) and a guide seat (408); the threaded rod (405) is rotatably arranged on one side of the palm support plate (402), and a knob is fixedly arranged on the top of the threaded rod (405); the threaded seat (406) is arranged on the outside of the threaded rod (405) through a threaded connection; the fixed rod (407) is fixedly arranged on the other side of the palm support plate (402); and the guide seat (408) is slidably arranged on the outside of the fixed rod (407).

7. The upper limb fixation device for scanning according to claim 6, characterized in that: The second fixing structure (5) comprises: a vertical rod (501), a horizontal plate (502) and a fixing pad (503); the number of the vertical rods (501) is set to two groups, and the two groups of vertical rods (501) are fixedly arranged on the top of the guide seat (408) and the threaded seat (406), respectively; the horizontal plate (502) is slidably arranged between the two groups of vertical rods (501), and a spring member is provided between the top of the horizontal plate (502) and the top of the vertical rod (501); the fixing pad (503) is fixedly provided at the bottom of the horizontal plate (502), and the bottom of the fixing pad (503) is provided with grooves arranged in a straight line.

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