Upper limb lifting bracket for CT (Computed Tomography) examination
By designing an upper limb support bracket, the problem of poor comfort and unsatisfactory scanning results caused by patients' inability to stably raise their arms during CT examinations was solved. It achieves stable arm support for patients, improving the accuracy and comfort of scanning imaging.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TAIZHOU CENT HOSPITAL
- Filing Date
- 2024-12-31
- Publication Date
- 2026-04-14
AI Technical Summary
In current CT scans, elderly and frail patients often experience discomfort and poor imaging results when scanning areas above the chest because they cannot steadily raise their hands.
Design an upper limb support bracket that connects a hinged fixed plate and a movable plate, combined with a positioning rod and a locking device, to adjust the height and length of the support rod, ensuring that the patient's arm can be stably supported, reducing physical exertion and arm tremors.
It improves patient comfort, reduces scanning image deviation, and ensures scanning results.
Smart Images
Figure CN224112688U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of medical device technology and relates to an upper limb support bracket for CT examination. Background Technology
[0002] CT scan is a common imaging technique in modern clinical medicine. It uses X-ray beams to perform tomographic scanning of the human body and uses computer processing to generate detailed images of the body's internal structures. It has fast and clear imaging capabilities and is widely used in the diagnosis of various diseases.
[0003] Structurally, existing CT equipment mainly consists of three core parts: the scanning section, the computer system, and the image display and system storage. The scanning section specifically comprises an X-ray tube, a detector, and a gantry. The gantry, as the main structure, is used to mount and support the X-ray tube and detector. In addition, the scanning section generally includes a support frame (also called an examination table) to support the patient's torso. This support frame is electrically driven to adjust the patient's position relative to the X-ray tube and detector within the gantry channel, thereby acquiring image data from different angles and locations.
[0004] During a CT scan, patients typically lie supine on a support frame. However, in practice, especially when scanning areas above the chest and below the head, patients often need to assume a specific posture to ensure effective imaging. Simply put, this involves raising both hands overhead to fully expand the chest area. For elderly or frail patients with limited mobility, their hands cannot be fully extended and rested on the frame like a healthy person's. Instead, they swing their arms a certain distance and hold them suspended in the air. However, a CT scan is not instantaneous; it often takes time. For these patients, this is uncomfortable, and they lack the stamina to remain relatively still for an extended period, leading to inaccurate imaging results. Summary of the Invention
[0005] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing an upper limb support bracket for CT examinations. The technical problem this invention aims to solve is: how to improve the scanning imaging effect while ensuring comfort.
[0006] The objective of this utility model can be achieved through the following technical solution: An upper limb support bracket for CT examination, comprising a fixed plate, characterized in that the upper limb support bracket for CT examination further comprises a positioning rod, a support rod, a locking member, and a movable plate hinged to the fixed plate. One end of the positioning rod is hinged to the fixed plate, and the other end is slidably connected to the movable plate and locked and positioned to the movable plate by the locking member. The support rod is connected to the movable plate laterally, and both ends of the support rod protrude from the side walls of the movable plate.
[0007] The working principle of this upper limb support bracket for CT examination is as follows: The entire device is assembled on a bed board and fixed by a fixed plate to ensure the stability of the entire device. When the patient lies supine on the bed board with their head behind the device, medical staff can rotate the movable plate around the hinge according to the patient's posture, so that it forms a certain angle with the fixed plate. During this process, one end of the positioning rod rotates around the hinge between itself and the fixed plate, while the other end slides on the movable plate. After the movable plate is adjusted to a suitable position, a locking device is used to lock the end of the positioning rod that is slidably connected to the movable plate together with the movable plate. In this state, the movable plate can maintain its position relative to the fixed plate at this angle. Then, when the patient raises their arms, both arms can be placed near the two ends of the support rod, thus ensuring that the patient's arms are supported during the examination. This effectively saves the patient's energy, avoids discomfort, and prevents scanning image deviations caused by arm tremors, effectively improving the scanning image quality.
[0008] In the above-mentioned upper limb support bracket for CT examination, the locking component is a screw cap with threads tapped on the inner wall, the movable plate has a strip-shaped connecting part, the connecting part has a strip-shaped hole, a connecting bolt is slidably connected in the strip-shaped hole, one end of the positioning rod has a connecting hole in the radial direction, the connecting bolt passes through the connecting hole and is screwed to the screw cap. Specifically, the lower end of the connecting rod is hinged to the fixed plate via a hinge pin (shaft), allowing the lower end of the positioning rod to rotate around the hinge. Its upper end is connected by connecting bolts that pass through the slotted hole in the connecting part and the connecting hole at its own upper end. The connecting bolts slide within the connecting holes, thus achieving a sliding connection between the upper end of the positioning rod and the movable plate. After the position is adjusted, the upper end of the positioning rod and the side wall of the connecting part are clamped inwards by screwing on the cap and connecting bolt threads, thus achieving locking and positioning. This ensures the positioning between the movable plate and the positioning plate, thereby maintaining the handle rod at its current height. Alternatively, as an alternative, a nut can be used directly as the locking component.
[0009] In the aforementioned upper limb support bracket for CT examination, both the fixed plate and the movable plate are rectangular plates. The lower end of the movable plate is hinged to one edge of the fixed plate. The movable plate has connecting portions on both sides. Two positioning rods are located on both sides of the fixed plate and the movable plate, respectively. Specifically, the lower end of the movable plate and one edge of the fixed plate are hinged together, and the positioning rods on both sides guide and support the movable plate, thereby ensuring the structural stability of the upper limb support bracket for CT examination during use.
[0010] In the aforementioned upper limb support bracket for CT examination, each of the connecting parts has an insertion hole near the upper edge of the movable plate. The support rod includes a long, narrow rod body one and a rod body two. Rod body two is inserted into rod body one. Rod body one has an internal threaded sleeve and an external threaded sleeve connected to it. Rod body one is inserted into the insertion hole on one of the connecting parts, and rod body two is inserted into the insertion hole on the other connecting part. Rod body one and rod body two are locked together by screwing the internal threaded sleeve and the external threaded sleeve. The support rod adopts a two-section rod structure, specifically, rod body one and rod body two are connected by screwing the internal threaded sleeve and the external threaded sleeve. Rod body one is inserted into the insertion hole on one of the connecting parts, and rod body two is inserted into the insertion hole on the other connecting part, thereby ensuring that the support rod can be disassembled and replaced.
[0011] In the aforementioned upper limb support bracket for CT examination, one end of the first rod has an insertion channel, and the second rod is inserted into the insertion channel. The internal threaded sleeve is flared and fixed to one end of the first rod. The external threaded sleeve is sleeved on the second rod. The external threaded sleeve includes a threaded section with external threads and a hand-held section integrally formed with one end of the threaded section. Several deformation grooves are formed on the outer wall of the threaded section along the axial direction of the second rod. The several deformation grooves are arranged at intervals along the circumference of the threaded section and penetrate both ends of the external threaded sleeve. This design allows rod one and rod two to be adjusted in length and then locked in place by a screw-in engagement between the external and internal threaded sleeves. Specifically, because the internal threaded sleeve is flared and has a deformation groove on the outer wall of the threaded section of the external threaded sleeve, the threaded section of the external threaded sleeve is subjected to the squeezing force of the internal threaded sleeve during the screw-in process, which presses against the outer wall of rod two, thus achieving the positioning of rod one and rod two after length adjustment. At the same time, medical staff can manually tighten the screw by holding the screw, making the operation more convenient.
[0012] In the aforementioned upper limb support bracket for CT examination, the inner diameter of the handheld section is less than or equal to the inner diameter of the threaded section, and the inner peripheral wall of the handheld section fits snugly against the outer peripheral wall of the second rod. This ensures the coaxiality of the external threaded sleeve and the second rod, avoiding any misalignment on the second rod at the beginning of tightening, which could lead to difficulties in connecting the internal and external threaded sleeves.
[0013] Compared with existing technologies, the upper limb support frame used for CT scans has the following advantages:
[0014] The fixed plate and the movable plate are connected by a hinge, allowing the height of the arm support rod connected to the movable plate to be adjusted. After adjustment, the movable plate is locked by a positioning rod and a positioning component to maintain the height of the arm support rod, enabling the patient's arm to be supported during the examination. In addition, the length of the arm support rod is adjustable to adapt to patients with different body shapes, improving their comfort while ensuring the scanning imaging effect. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the upper limb support frame used for CT scans.
[0016] Figure 2 This is a schematic diagram of the movable plate structure.
[0017] Figure 3 This is a structural diagram of the handle bar.
[0018] Figure 4 It is a sectional view of the handle rod along the axial direction and a partial enlarged view.
[0019] Figure 5 This is a partial structural diagram of rod two.
[0020] Figure 6 This is a schematic diagram of the positioning rod.
[0021] In the diagram, 1 is the fixing plate; 2 is the positioning rod; 11 is the connecting hole; 3 is the handle rod; 31 is the rod body one; 311 is the internal threaded sleeve; 312 is the insertion channel; 32 is the rod body two; 321 is the external threaded sleeve; 3211 is the threaded section; 32111 is the deformation groove; 3212 is the hand grip section; 4 is the locking part; 5 is the movable plate; 51 is the connecting part; 511 is the strip hole; 5111 is the connecting bolt; and 512 is the insertion hole. Detailed Implementation
[0022] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.
[0023] like Figure 1 , Figure 2 as well asFigure 6 As shown, the upper limb support bracket for CT examination includes a rectangular plate-shaped fixed plate 1 and a movable plate 5. The movable plate 5 is vertically arranged relative to the fixed plate 1, and its lower end is hinged to one end of the plate surface of the fixed plate 1 via a hinge. At the two sides of the upper end of the movable plate 5, there are strip-shaped connecting portions 51 that protrude from the plate surface of the movable plate 5. The connecting portions 51 have strip-shaped holes 511 extending through both sides of their length. The upper limb support bracket for CT examination also includes two positioning rods 2. One end of each positioning rod 2 has a hinge hole radially arranged, and the other end has a connecting hole 21 radially arranged. One end of the positioning rod 2 passes through the hinge hole via a hinge pin (shaft) and is screwed into a threaded hole on the side wall of the fixed plate 1. To achieve the hinge connection between the end of the positioning rod 2 and the fixed plate 1, a connecting bolt 5111 is provided on each connecting part 51. The rod of the connecting bolt 5111 passes through the strip hole 511 and the connecting hole 21 in sequence, so that the end of the positioning rod 2 can slide along the length direction of the movable plate 5 when the movable plate 5 rotates around the hinge. In addition, the upper limb support bracket used for CT examination also includes a locking component 4. The locking component 4 is specifically a screw cap with internal threads. The screw cap is screwed to the connecting bolt 5111. After the rotation angle of the movable plate 5 is determined, medical staff can tighten the locking component 4. The locking component 4 and the connecting bolt 5111 cooperate to press the positioning rod 2 against the connecting part 51, thereby achieving the locking and positioning of the movable plate 5.
[0024] Combination Figures 3-5 Each connecting part 51 has an insertion hole 512 located near the upper edge of the movable plate 5. The upper limb support bracket for CT examination also includes a support rod 3, which specifically includes a long rod body 31 and a rod body 32. The rod body 31 is inserted into the insertion hole 512 on one of the connecting parts 51, and the rod body 32 is inserted into the insertion hole 512 on the other connecting part 51. One end of the rod body 31 has an axial insertion channel 312, and the outer wall of this end has an integrally formed internal thread sleeve 311. The internal thread sleeve 311 is flared. The rod body 32 has external and internal threads. The sleeve 311 is inserted and has an externally threaded sleeve 321 fitted on its outer wall. The externally threaded sleeve 321 specifically includes a threaded section 3211 with external threads tapped on its outer wall and a cylindrical handheld section 3212, which are formed as a single unit. Several deformation grooves 32111, penetrating both ends of the threaded section 3211, are formed on the outer wall of the threaded section 3211 along the axial direction of the second rod 32. These grooves are spaced apart circumferentially along the threaded section 3211. The inner diameter of the handheld section 3212 is less than or equal to the inner diameter of the threaded section 3211, and the inner circumferential wall of the handheld section 3212 fits snugly against the outer circumferential wall of the second rod 32. In addition, to ensure the patient's arm can be comfortably supported, an elastic fabric sleeve can be fitted over the first rod 31 and the second rod 32 to provide elastic support for the patient's arm and ensure comfort.
[0025] Operating Principle: This upper limb support bracket for CT scans is connected to a fixed bed board via a fixed plate 1. Various connection methods can be used, such as slotting the bed board for snap-fit or screwing it in. With the locking element 4 loosened, medical staff can push or pull the movable plate 5 around the hinge point according to the patient's posture. After adjusting to the appropriate angle, tighten the locking element 4 to ensure the movable plate 5 is positioned. Then, adjust the length of the support rod 3 according to the patient's posture; that is, with the external threaded sleeve 321 loosened, pull the rod... 32 is continuously pulled out of the insertion channel 312 of the first rod 31, or the second rod 32 is pushed to continuously insert into the insertion channel 312 of the first rod 31. After adjusting to the appropriate length, the medical staff holds the hand-held section 3212 and screws the external threaded sleeve 321. The internal threaded sleeve 311 squeezes the threaded section 3211 to make the second rod 32 be pressed tightly, thus completing the entire adjustment process. When using it, the patient lies supine on the bed board with both hands raised above the head and leaning against the hand support rods (first rod 31 and second rod 32).
[0026] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.
[0027] Although this document frequently uses terms such as fixing plate 1, positioning rod 2, connecting hole 11, handle rod 3, rod body 1 31, internal threaded sleeve 311, insertion channel 312, rod body 2 32, external threaded sleeve 321, threaded section 3211, deformation groove 32111, hand grip section 3212, locking element 4, movable plate 5, connecting part 51, strip hole 511, connecting bolt 5111, and insertion hole 512, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.
Claims
1. An upper limb support bracket for CT examination, comprising a fixation plate (1), characterized in that, The upper limb support bracket for CT examination also includes a positioning rod (2), a support rod (3), a locking member (4), and a movable plate (5) hinged to the fixed plate (1). One end of the positioning rod (2) is hinged to the fixed plate (1), and the other end is slidably connected to the movable plate (5) and locked to the movable plate (5) by the locking member (4). The support rod (3) is connected to the movable plate (5) in a transverse direction, and both ends of the support rod (3) protrude from the two side walls of the movable plate (5).
2. The upper limb support frame for CT examination according to claim 1, characterized in that, The locking component (4) is a screw cap with threads tapped on the inner wall. The movable plate (5) has a strip-shaped connecting part (51). A strip hole (511) is opened on the connecting part (51). A connecting bolt (5111) is slidably connected in the strip hole (511). One end of the positioning rod (2) has a connecting hole (21) in the radial direction. The connecting bolt (5111) passes through the connecting hole (21) and is screwed to the screw cap.
3. The upper limb support frame for CT examination according to claim 2, characterized in that, Both the fixed plate (1) and the movable plate (5) are rectangular plates. The lower end of the movable plate (5) is hinged to one edge of the plate surface of the fixed plate (1). The movable plate (5) has the connecting part (51) on both sides. There are two positioning rods (2) located on both sides of the fixed plate (1) and the movable plate (5).
4. The upper limb support frame for CT examination according to claim 3, characterized in that, Each of the connecting parts (51) is provided with a plug hole (512) near the upper edge of the movable plate (5). The handle rod (3) includes a long rod body one (31) and a rod body two (32). The rod body two (32) is plugged into the rod body one (31). An internal thread sleeve (311) is connected to the rod body one (31), and an external thread sleeve (321) is connected to the rod body. The rod body one (31) is plugged into the plug hole (512) on one of the connecting parts (51), and the rod body two (32) is plugged into the plug hole (512) on the other connecting part (51). The rod body one (31) and the rod body two (32) are locked together by the internal thread sleeve (311) and the external thread sleeve (321).
5. The upper limb support frame for CT examination according to claim 4, characterized in that, One end of the first rod (31) has an insertion channel (312), and the second rod (32) is inserted into the insertion channel (312). The internal thread sleeve (311) is flared and fixed to one end of the first rod (31). The external thread sleeve (321) is sleeved on the second rod (32). The external thread sleeve (321) includes a threaded section (3211) with external threads and a handheld section (3212) integrally formed with one end of the threaded section (3211). Several deformation grooves (32111) are provided on the outer side wall of the threaded section (3211) along the axial direction of the second rod (32). The several deformation grooves (32111) are arranged at intervals along the circumference of the threaded section (3211) and pass through both ends of the external thread sleeve (321).
6. The upper limb support frame for CT examination according to claim 5, characterized in that, The inner diameter of the hand-held section (3212) is less than or equal to the inner diameter of the threaded section (3211), and the inner peripheral wall of the hand-held section (3212) and the outer peripheral wall of the rod body (32) are in contact.