Injection support arm

Abstract

The invention discloses an injection arm support, which effectively solves the problems of single function and complicated operation of existing arm fixing devices; it comprises a mounting seat detachably connected to a CT bed, a supporting plate is arranged on the mounting seat, slide grooves are respectively arranged on the left and right sides of the supporting plate, a U-shaped slide plate is slidably connected with the two slide grooves and the through groove, slide bars are respectively slidably connected with the left and right sides of the slide plate, a horizontal plate is fixed on the upper ends of the two slide bars, a rotating shaft with a front-rear axial direction is rotatably connected in the horizontal plate, a restraint belt is wound around the rotating shaft, a U-shaped groove located above the through groove and on the opening is arranged on the supporting plate, a limiting mechanism which can limit the rotation of the rotating shaft is arranged on the front and rear sides of the rear side of the horizontal shaft; the utility model has an ingenious structure and is easy to use, the restraint belt can fix the septum before injecting iodine contrast agent to prevent the arm from bending, and can also restrain the posture of raising both arms, the operation change is simple and convenient, does not need to cooperate with multiple devices for use, improves the inspection efficiency, and is easy to promote and use.

Description

Technical Field

[0001] The utility model relates to the technical field of medical auxiliary equipment, in particular to an injection support arm rack. Background Art

[0002] For lung malignancies, CT contrast-enhanced scanning is recommended regardless of the stage. CT contrast-enhanced scanning can further clarify the scope of the lesion, the boundary and edge of the mass, and help to further clarify the nature of the nodules and lesions, understand their vascular conditions, and their relationship with surrounding veins and arteries. At the same time, it can understand the condition of local mediastinal lymph nodes, providing a basis for surgical treatment, chemotherapy, and radiotherapy. Before performing lung enhanced CT on patients, they are required to remove metal objects within the inspection range, select the large blood vessels at the patient's right elbow joint, and after inserting the indwelling needle, the doctor instructs the patient to lie on his back, place the body as close to the midline of the bed as possible, and keep the arms straight to avoid the indwelling needle in the blood vessel from twisting, being compressed, and increasing the resistance during high-pressure injection of iodine contrast agents. After the injection of iodine contrast agents, patients need to raise their arms above their heads. For patients who cannot complete this action independently, they need to use restraint belts or body position fixation devices to help complete it.

[0003] For some patients with advanced tumors and weak bodies, it is not easy to keep their arms straight, and arm tremors or bends are likely to occur, which will affect the injection of iodine contrast agents, and sometimes cause extravasation of iodine contrast agents, causing discomfort such as swelling and pain in the arms. An authorized patent is currently available, with patent number 202021505123.8. A lung cancer whole tumor perfusion CT enhanced scanning examination intravenous injection arm support, which discloses a base, a telescopic column, a telescopic column adjustment knob, a support rod, a clamping seat, a clamping seat knob, a hinged portion, a rotating shaft clamping seat connecting rod, a rotating shaft clamping seat, a rotating shaft, an arm arc support plate, an upper pressure plate, an airbag, a hinged shaft, and an airbag control module; the base is a frustum, with a rubber pad at the bottom, A telescopic column is fixedly connected to the base, and a telescopic column adjustment knob is provided on the telescopic column to control the telescopic column to be extended and fixed; a support rod is detachably connected to the upper end of the telescopic column, and a clamping seat is fixedly connected to the support rod, and a clamping seat knob is installed on the clamping seat; a hinged portion is fixedly connected to the upper end of the support rod, and a rotating shaft clamping seat connecting rod is hinged to the rotating shaft clamping seat connecting rod through a pin, and a rotating shaft is fixedly connected to the rotating shaft clamping seat connecting rod, and a rotating shaft is rotatably installed in the rotating shaft clamping seat; an arm arc-shaped supporting plate is fixedly connected to the rotating shaft; one side of the arm arc-shaped supporting plate is connected to an upper pressing plate through a hinge shaft, an airbag is connected to an inner arc surface of the upper pressing plate, and an airbag control module is installed on an outer arc surface of the upper pressing plate, and the airbag control module is connected to the airbag;

[0004] Although this technical means can fix the patient's arm, it cannot adapt to patients of different heights when the patient's body is located on the midline of the bed, and the position of the airbag cannot be changed according to the length of the patient's arm, which affects the effective fixation of the arm. It has poor adaptability and cannot fix the patient's arm in the raised position when the patient undergoes a CT scan. It is necessary to first release the device from fixing the arm, and then use other restraint belts or limb fixation devices to help fix the arm in the raised position, which increases the complexity of the operation and prolongs the examination time. Utility Model Content

[0005] In view of the above situation, in order to overcome the defects of the prior art, the purpose of the present utility model is to provide an injection support arm rack, which effectively solves the problem that the existing arm fixing device has a single function and cumbersome operation.

[0006] The technical solution is as follows: the utility model comprises a mounting seat detachably connected to the CT bed, the mounting seat is rotatably connected to a support plate via an up-and-down axial damping rotating shaft, the left and right sides of the support plate are respectively provided with sliding grooves with openings facing upward and in front-and-back directions, the bottoms of the two sliding grooves are connected via a through groove, a U-shaped slide plate is slidably connected to the two sliding grooves and in the through groove, the left and right sides of the slide plate are respectively slidably connected to slide rods, a cross plate is fixed on the upper ends of the two slide rods, a rotating shaft rotatably connected in the cross plate, a restraint belt is wrapped around the rotating shaft, a U-shaped groove located above the through groove and on the opening is provided on the support plate, the free end of the restraint belt penetrates downwardly through the cross plate and passes through the U-shaped groove from right to left and then penetrates upward through the cross plate, the restraint belt can be detachably connected to the upper side surface or left side surface of the cross plate, and a limiting mechanism that can limit the rotation of the rotating shaft is provided on the rear and front sides of the cross shaft.

[0007] Compared with the prior art, the utility model has the following beneficial effects:

[0008] 1. The utility model has an ingenious structure and is easy to use. A sliding rod and a restraint belt that can move up and down are provided. After the patient places his arm on the support board, the doctor only needs to pull the free end of the restraint belt to move the horizontal board downward. After the soft cushion squeezes the arm, the restraint belt is connected to the horizontal board to fix the arm, effectively preventing the arm from bending when injecting iodine contrast agent;

[0009] 2. Set up a damping shaft, a rectangular block, and a restraint belt. After turning the screw to release the restriction of the rectangular block on the shaft, pull the restraint belt to pass over the patient's upper arm and pass under the CT bed and connect to the horizontal board to restrain and fix the patient's position when raising both arms to ensure the smooth progress of the examination;

[0010] 3. The position of the slide plate is adjustable, which can adjust the position of the horizontal plate and enable the restraint belt to fix the arms of patients of different lengths, and has strong adaptability;

[0011] 4. The restraint belt can not only fix the septum before injecting iodine contrast agent to prevent arm bending and increase resistance during iodine contrast agent injection, but also restrain the posture of raising both arms. The operation is simple and convenient, and does not require the use of multiple devices, which improves the inspection efficiency and is easy to promote and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is an axonometric drawing of the utility model.

[0013] Figure 2 It is a top view of the utility model.

[0014] Figure 3 This utility model Figure 2 Sectional view of AA.

[0015] Figure 4 This utility model Figure 2 Cross-sectional view of BB.

[0016] Figure 5 This utility model Figure 4 Enlarged view of C in the middle.

[0017] Figure 6 It is an axonometric diagram of the rectangular block and the screw in the utility model. DETAILED DESCRIPTION

[0018] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings.

[0019] Depend on Figures 1 to 6 The invention provides a mounting base 1 detachably connected to the CT bed, wherein the mounting base 1 is rotatably connected to a support plate 3 via an up-and-down axial damping shaft 2, wherein slide grooves 4 with openings facing upward and in the front-to-back direction are respectively provided on the left and right sides of the support plate 3, wherein the bottoms of the two slide grooves 4 are connected via a through groove, and a U-shaped slide plate 5 is slidably connected to the two slide grooves 4 and the through grooves, wherein the slide plate 5 is slidably connected to slide rods 6 on the left and right sides of the slide plate 5, wherein a cross plate 7 is fixed on the upper ends of the two slide rods 6, wherein a rotation shaft 8 in the cross plate 7 is rotatably connected, and a restraint belt 9 is wound around the rotation shaft 8, and a U-shaped groove 10 located above the through groove and on the opening is provided on the support plate 3, and a free end of the restraint belt 9 penetrates downwardly through the cross plate 7 and penetrates from right to left through the U-shaped groove 10 and then penetrates upward through the cross plate 7, and the restraint belt 9 can be detachably connected to the upper side or left side of the cross plate 7, and a limiting mechanism that can limit the rotation of the rotation shaft 8 is provided on the rear and front sides of the cross shaft.

[0020] In order to enable the mounting base 1 to be detachably connected to the CT bed, a plurality of suction cups are fixed on the left side of the mounting base 1 .

[0021] In order to enable the slide bar 6 to slide on the slide plate 5, the left and right sides of the slide plate 5 are respectively provided with vertical grooves with openings facing upwards, the slide bar 6 is slidably connected to the corresponding vertical grooves, and the lower end of the slide bar 6 is connected to the bottom of the corresponding vertical groove via a spring 11.

[0022] In order to make the restraint belt 9 detachable and connected to the upper side or left side of the horizontal plate 7, Velcro is fixed to the upper side and left side of the horizontal plate 7 respectively, and the lower side of the free end of the restraint belt 9 is provided with a Velcro mother tape that can be bonded to the Velcro.

[0023] The limiting mechanism includes a screw 12 threadedly connected to the cross plate 7, and rectangular grooves 13 are respectively opened on the front side of the cross plate 7 and the front side of the rotating shaft 8. The two rectangular grooves 13 are connected front to back and are located behind the screw 12. A rectangular block 14 is slidably connected in the rectangular groove 13 on the rotating shaft 8. The rear end of the screw 12 is rotatably connected to the rectangular block 14 and its front end passes through the cross plate 7.

[0024] In order to enable the rotating shaft 8 to be smoothly reset, the rear side of the rotating shaft 8 is connected to the transverse plate 7 via a coil spring 15 .

[0025] In order to better fix the patient's arm and increase the patient's comfort, an arc-shaped cushion 16 is fixed to the lower end of the horizontal plate 7, the restraint belt 9 passes through the arc-shaped cushion 16, and the upper surface of the support plate 3 is a concave arc surface.

[0026] In order to limit the position of the slide plate 5, the bottom of the left slide groove 4 is connected with a plurality of positioning grooves 17 distributed along the front-to-back direction, and an inverted L-shaped groove is opened on the left side of the slide plate 5, and an inverted L-shaped rod 18 is slidably connected in the inverted L-shaped groove. The lower end of the inverted L-shaped rod 18 can be inserted into the corresponding positioning groove 17 and the upper left end thereof extends out of the inverted L-shaped groove, and the upper end of the inverted L-shaped rod 18 is connected to the top of the inverted L-shaped groove via a compression spring.

[0027] When the utility model is in use, the rectangular block 14 is arranged in the rectangular groove 13 on the rotating shaft 8, the coil spring 15 is not compressed, and the distance between the horizontal plate 7 and the support plate 3 is the largest in the initial state; before injecting iodine contrast agent into the patient's arm, a plurality of suction cups are squeezed toward the right side of the CT bed, and after the free ends of the suction cups are in contact with the side of the CT bed and the air therein is completely squeezed out, the suction cups are adsorbed on the side of the CT bed, and the mounting seat 1 is fixed on the CT bed, and at this time, the upper surface of the support plate 3 is at the same height as the upper surface of the CT bed;

[0028] The patient's right arm is placed on the support board 3, and the position of the slide plate 5 is adjusted by observing the length of the patient's arm. The inverted L-shaped rod 18 is pulled upward, and the inverted L-shaped rod 18 moves upward and squeezes the compression spring. After the lower end of the inverted L-shaped rod 18 is disengaged from the positioning groove 17, the inverted L-shaped rod 18 is kept in the state and the slide plate 5 is pushed forward or backward. The slide plate 5 drives the cross plate 7 and the restraint belt 9 to move together. When the cross plate 7 is located just above the patient's wrist and elbow, the slide plate 5 is stopped from moving and the inverted L-shaped rod 18 is released. The inverted L-shaped rod 18 is moved downward under the action of the compression spring. The end is inserted into the corresponding positioning groove 17 to limit the position of the slide plate 5, and then the restraint belt 9 is pulled upward. Since the rectangular block 14 is located in the rectangular groove 13 on the rotating shaft 8, the rotating shaft 8 cannot rotate. Therefore, the restraint belt 9 pulls the horizontal plate 7 to squeeze the slide bar 6 to move downward, and the spring 11 is gradually compressed. When the soft pad 16 squeezes the patient's arm, the Velcro mother patch on the restraint belt 9 is bonded to the Velcro child patch on the upper side of the horizontal plate 7, so that the patient's arm is fixed, effectively preventing the patient's arm from bending when the iodine contrast agent is injected through the indwelling needle;

[0029] After the iodine contrast agent is injected, the restraint belt 9 is uncovered to separate the Velcro sub-strip from the Velcro mother-strip, and the restraint belt 9 becomes loose. The slide bar 6 drives the cross plate 7 to move upward under the action of the spring 11. At this time, the arm is no longer fixed. After the patient removes the arm from the support plate 3, according to the doctor's request, both arms are raised to hold the head. The doctor rotates the support plate 3 so that the support plate 3 is parallel to the CT bed, and rotates the screw 12. The screw 12 drives the rectangular block 14 to move forward. When the rectangular block 14 is completely out of the rectangular groove 13 on the rotating shaft 8, the screw 12 is stopped, and the free end of the restraint belt 9 is pulled, and the restraint belt 9 is pulled out The rotating shaft 8 is driven to rotate, the coil spring 15 is compressed, the restraint belt 9 passes through the upper side of the patient's arms and then bypasses the lower side of the CT bed. When the restraint belt 9 wrapped around the rotating shaft 8 is completely pulled out, the free end of the restraint belt 9 continues to be pulled. At this time, the restraint belt 9 drives the horizontal plate 7 and the slide bar 6 to move downward via the rotating shaft 8, and the spring 11 is compressed. When the restraint belt 9 restrains the patient's arms so that the patient's arms can maintain a head-holding position, the Velcro mother sticker on the restraint belt 9 can be bonded to the Velcro child sticker on the horizontal plate 7; after the examination is completed, the restraint belt 9 is uncovered to release the restraint on the arm, and the mounting base 1 can be pulled off the CT bed.

[0030] In the utility model, a support plate 3 is arranged to be connected with a mounting seat 1 via a damping shaft 2, so that when the patient's right arm cannot meet the conditions for inserting an indwelling needle and the left arm must be inserted, the position of the mounting seat 1 is rotated and fixed on the left side of the CT bed to fix the patient's left arm.

[0031] It is noteworthy that after the restraint belt 9 fixes the patient's arm, the arm cannot bend, but it may drive the support plate 3 to rotate around the damping shaft 2. This action does not affect the injection of iodine contrast agent because the arm is kept straight and will not increase the resistance to the injection of iodine contrast agent.

Claims

1. An injection support arm, comprising a mounting base (1) detachably connected to a CT bed, characterized in that: A support plate (3) is rotatably connected to the mounting seat (1) via a damping rotating shaft (2) in an upper and lower axial direction. A slide groove (4) with an opening facing upward and in a front-to-back direction is respectively provided on the left and right sides of the support plate (3). The bottoms of the two slide grooves (4) are connected via a through groove. A U-shaped slide plate (5) is slidably connected to the two slide grooves (4) and the through groove. A slide rod (6) is slidably connected to the left and right sides of the slide plate (5). A transverse plate (7) is fixed at the upper ends of the two slide rods (6). A rotating shaft (8) in a front-to-back axial direction is rotatably connected in the transverse plate (7). A restraining belt (9) is wound around the rotating shaft (8). A U-shaped groove (10) located above the through groove and on the opening is provided on the support plate (3). The free end of the restraining belt (9) penetrates the transverse plate (7) downward and passes through the U-shaped groove (10) from right to left and then penetrates the transverse plate (7) upward. The restraining belt (9) can be detachably connected to the upper side or left side of the transverse plate (7). A limiting mechanism capable of limiting the rotation of the rotating shaft (8) is provided on the rear and front sides of the transverse shaft.

2. The injection support arm according to claim 1, characterized in that: A plurality of suction cups are fixed on the left side of the mounting seat (1).

3. The injection support arm according to claim 1, characterized in that: The slide plate (5) is provided with vertical grooves with openings facing upwards on the left and right sides respectively, the slide rod (6) is slidably connected to the corresponding vertical grooves, and the lower end of the slide rod (6) is connected to the bottom of the corresponding vertical groove via a spring (11).

4. The injection support arm according to claim 1, characterized in that: The upper side surface and the left side surface of the horizontal plate (7) are respectively fixed with Velcro tapes, and the lower side surface of the free end of the restraining belt (9) is provided with a Velcro tape that can be bonded with the Velcro tape.

5. The injection support arm according to claim 1, characterized in that: The limiting mechanism comprises a screw rod (12) threadedly connected to the horizontal plate (7); a rectangular groove (13) is respectively provided on the front side of the horizontal plate (7) and the front side of the rotating shaft (8); the two rectangular grooves (13) are connected front to back and are located behind the screw rod (12); a rectangular block (14) is slidably connected in the rectangular groove (13) on the rotating shaft (8); the rear end of the screw rod (12) is rotatably connected to the rectangular block (14) and the front end thereof passes through the horizontal plate (7).

6. The injection support arm according to claim 1, characterized in that: The rear side of the rotating shaft (8) is connected to the transverse plate (7) via a coil spring (15).

7. The injection support arm according to claim 1, characterized in that: An arc-shaped cushion (16) is fixed to the lower end of the horizontal plate (7), the restraining belt (9) passes through the arc-shaped cushion (16), and the upper surface of the support plate (3) is an inwardly concave arc-shaped surface.

8. The injection support arm according to claim 1, characterized in that: The bottom of the left side slide groove (4) is connected to a plurality of positioning grooves (17) distributed in the front-rear direction. The left side of the slide plate (5) is provided with an inverted L-shaped groove. An inverted L-shaped rod (18) is slidably connected in the inverted L-shaped groove. The lower end of the inverted L-shaped rod (18) can be inserted into the corresponding positioning groove (17) and the upper left end thereof protrudes out of the inverted L-shaped groove. The upper end of the inverted L-shaped rod (18) is connected to the top of the inverted L-shaped groove via a compression spring.

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