A CT scan fixation belt

Abstract

This utility model discloses a CT examination fixation strap, relating to the field of medical auxiliary device technology. It includes a strap and a fixation base. Pull strips are fixedly connected to both ends of the strap. A length positioning mechanism is located at both ends of the strap for adjusting the fixation length. A multi-directional rotation mechanism is installed between the length positioning mechanism and the fixation base to reduce friction at the connection point. The length positioning mechanism in this CT examination fixation strap utilizes a combination of a partition plate, a limiting seat, a threaded sleeve, a positioning rod, and a slot. Through a simple threaded screwing and slot engagement method, it achieves flexible and precise adjustment of the strap length. The structure is simple and easy to operate, improving the convenience of length adjustment and the fixation adaptability to patients of different body types. The rotational connections between the components of the multi-directional rotation mechanism form a multi-degree-of-freedom rotational system, effectively reducing rotational friction between the strap and the fixation base during use, while enhancing its flexibility.

Description

Technical Field

[0001] This utility model relates to the field of medical auxiliary device technology, specifically a CT examination fixation belt. Background Technology

[0002] CT scans, as a modern and advanced medical imaging technology, are widely used in medical diagnosis. During the examination, the patient needs to lie still on the examination bed. However, some patients, such as those who are comatose, have impaired consciousness, or have involuntary movements, have difficulty controlling their body movements. Therefore, it is necessary to use a fixation strap to restrain and position the patient to ensure the accuracy of the CT scan. However, the existing CT scan fixation straps still have certain defects in use.

[0003] For example, the CT examination fixation strap proposed in application number CN202021975549.X includes a CT examination bed, a retractor and a fixation seat fixedly installed on the side wall of the CT examination bed, a retractor roller inside the retractor, an abdominal binder wrapped around the retractor roller, and the end of the abdominal binder away from the retractor fixedly connected to the fixation seat. A connector is fixedly installed on the side of the CT examination bed opposite to the retractor and the fixation seat, and a fastener is movably installed on the abdominal binder. The fastener is detachably connected to the connector. In actual use, although this fixation strap can achieve the purpose of fixing the patient, the method of fixing it to the bed is special, requiring the special production of matching examination beds, which is not suitable for the large number of existing examination beds in hospitals, resulting in high modification costs. Furthermore, the fixed connection between the fixation strap and the connector makes it easy for the fixation strap to generate strong friction with the connector, shortening its service life.

[0004] Therefore, we propose a CT scan fixation strap to address the problems mentioned above. Utility Model Content

[0005] The purpose of this invention is to provide a CT examination fixation strap to solve the problems of high modification costs and easy wear at the connection point caused by the special method of fixing it to the bed as described in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a CT examination fixation strap, comprising a restraint strap and a fixation base.

[0007] The two ends of the restraint strap are fixedly connected with pull strips;

[0008] A length positioning mechanism is installed at both ends of the restraint strap to adjust the restraint length;

[0009] A multi-directional rotating mechanism is installed between the length positioning mechanism and the fixed base to reduce friction at the connection point;

[0010] A plug-in block is fixedly installed on one side of the fixed base, and a mating seat is sleeved on the outer ring of the plug-in block;

[0011] A plug-in positioning mechanism is installed between the plug-in block and the mating seat to enable the connection and separation of the two.

[0012] Preferably, the pull strips are symmetrically distributed about the center line of the binding strap, and the surface of the pull strips is provided with anti-slip textures at equal intervals.

[0013] The design of the above structure, with symmetrically distributed pull strips and anti-slip texture on the surface, provides a more stable grip when medical staff pull the restraint straps for fixation, preventing slippage and effectively improving the convenience and safety of the operation.

[0014] Preferably, the length positioning mechanism includes a partition plate that fits the inner side of the bend at both ends of the restraint strap, with limiting seats fixedly connected to both ends of the partition plate, a threaded sleeve fixedly embedded in the top of the limiting seat, a positioning rod passing through the inside of the threaded sleeve, and slots equally spaced at both ends of the restraint strap.

[0015] Preferably, the positioning rod is threadedly connected to the threaded sleeve, and the positioning rod is movably engaged with the slot.

[0016] With the above-mentioned structural design, the positioning rod in the length positioning mechanism is threadedly connected to the threaded sleeve. The positioning rod can be rotated to move up and down and engage with the slots in different positions, so as to flexibly adjust the length of the restraint strap. This design can accurately adapt to the needs of patients with different body types and different examination postures. Whether the patient is tall or short, fat or thin, they can achieve a comfortable and stable fixation effect by adjusting the length of the restraint strap, which greatly improves the versatility and practicality of the CT examination fixation strap.

[0017] Preferably, the multi-directional rotation mechanism includes a rotating plate fixedly installed on one side of the limiting seat, a fixed column passing through the middle of the rotating plate, and connecting seats fixedly connected to both ends of the fixed column.

[0018] Preferably, the multi-directional rotation mechanism further includes a first rotating seat fixedly installed on one side of the connecting seat, with rotating rods fixedly installed at both ends of the first rotating seat, and a second rotating seat rotatably sleeved on the outer ring of the rotating rods, with one end of the second rotating seat fixedly connected to the fixed seat.

[0019] Preferably, the rotating plate is rotatably connected to the connecting seat via a fixed column, and the first rotating seat is rotatably connected to the second rotating seat via a rotating rod.

[0020] The design of the above structure allows the multi-directional rotation mechanism to rotate flexibly at multiple angles and in multiple directions between the restraint strap and the fixation seat during the patient fixation process. This effectively reduces friction at the connection point, prevents the restraint strap from wearing down due to friction, and extends its service life. At the same time, when the patient's body needs to be slightly adjusted for the examination or when the patient is unconsciously struggling, the multi-directional rotation mechanism allows the restraint strap to rotate naturally in accordance with the body's movements, reducing the feeling of restraint and pressure on the patient's body and improving the patient's comfort during the examination.

[0021] Preferably, the plug block is slidably plugged into the mating seat.

[0022] Preferably, the insertion positioning mechanism includes a snap-fit ​​groove formed inside the docking seat, and the insertion block is slidably connected to the docking seat through the snap-fit ​​groove.

[0023] Preferably, the insertion positioning mechanism further includes positioning grooves symmetrically formed inside the insertion block. A connecting plate is slidably connected inside the positioning groove. A limit rod passes through the inside of the connecting plate. A pressing block is fixedly installed at one end of the connecting plate, and a snap-fit ​​block is fixedly installed at the other end of the connecting plate. A plastic spring is provided between the connecting plate and the positioning groove. The plastic spring is fixedly connected to the inner wall of the positioning groove, and an auxiliary spring is fixedly installed on the inner side of the plastic spring.

[0024] Preferably, two sets of the limiting rods are provided inside the single set of positioning grooves, and the connecting plate, pressing block and snap-fit ​​block are slidably connected to the limiting rods for limiting.

[0025] Preferably, the connecting plate, pressing block, and snap-fit ​​block form a telescopic structure with the positioning groove via plastic spring sheets. The snap-fit ​​block is movably engaged with the snap-fit ​​groove. Two sets of auxiliary spring sheets are provided inside the single set of plastic spring sheets, and the plastic spring sheets are arranged at an angle.

[0026] With the above-mentioned structural design, the insertion positioning mechanism can achieve a quick and stable connection between the insertion block and the docking seat, ensuring the stability of the overall structure of the fixation belt, effectively preventing the fixation belt from falling off due to patient movements during the examination, and at the same time, it can easily separate the two. The operation is simple and quick, making it convenient for medical staff to quickly install and remove the fixation belt, thus improving work efficiency.

[0027] Compared with the prior art, the beneficial effects of this utility model are: the CT examination fixation strap;

[0028] 1. The pull strips are symmetrically distributed at both ends of the restraint strap. The anti-slip texture on its surface increases friction and prevents relative slippage between the hand and the pull strip during operation, ensuring the stability of the length adjustment operation. The length positioning mechanism uses a combination of partition plate, limit seat, threaded sleeve, positioning rod and slot. Through simple thread screwing and slot engagement, it realizes flexible and precise adjustment of the restraint strap length. The structure is simple and easy to operate, which improves the convenience of length adjustment operation and the fixation adaptability to patients of different body types.

[0029] 2. The multi-directional rotation mechanism adopts the design of a rotating plate, a fixed column, a connecting seat, a first rotating seat, a rotating rod, and a second rotating seat. The rotational connection between each component forms a multi-degree-of-freedom rotational system, which effectively reduces the rotational friction between the restraint strap and the fixed seat during use, while enhancing its flexibility of movement. The insertion and positioning mechanism consists of a snap-fit ​​groove, a positioning groove, a connecting plate, a limiting rod, a pressing block, a snap-fit ​​block, a plastic spring, and an auxiliary spring. The snap-fit ​​block and snap-fit ​​groove are quickly engaged and disengaged through the elastic deformation of the plastic spring. The obliquely set plastic spring and auxiliary spring further enhance the stability of the snap-fit ​​and the durability of the structure, improving the convenience of disassembling and assembling the CT examination restraint strap. Furthermore, the docking seat (16) can be fixedly installed on the existing examination bed without the need for examination bed adaptation, reducing the modification cost. Attached Figure Description

[0030] Figure 1 This is a side view of the appearance structure of this utility model;

[0031] Figure 2 This is a side sectional view of the length positioning mechanism of this utility model;

[0032] Figure 3 This is an exploded structural diagram of the multi-directional rotation mechanism of this utility model;

[0033] Figure 4 This is an exploded view of the plug-in block and mating seat of this utility model;

[0034] Figure 5 This is a side sectional view of the plug-in block of this utility model.

[0035] In the diagram: 1. Restraint strap; 2. Pull bar; 3. Divider plate; 4. Limiting seat; 5. Threaded sleeve; 6. Positioning rod; 7. Slot; 8. Rotating plate; 9. Fixing post; 10. Connecting seat; 11. First rotating seat; 12. Rotating rod; 13. Second rotating seat; 14. Fixing seat; 15. Insertion block; 16. Docking seat; 17. Snap-fit ​​groove; 18. Positioning groove; 19. Connecting plate; 20. Limiting rod; 21. Pressing block; 22. Snap-fit ​​block; 23. Plastic spring; 24. Auxiliary spring. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0037] Please see Figure 1-5 This utility model provides a technical solution: a CT examination fixation strap, including a strap 1 and a fixation seat 14. The two ends of the strap 1 are fixedly connected to pull strips 2, which are symmetrically distributed about the center line of the strap 1. The surface of the pull strips 2 is provided with anti-slip textures at equal intervals. A length positioning mechanism is set at both ends of the strap 1 to adjust the binding length. The length positioning mechanism includes a partition plate 3 that fits into the inner side of the bend at both ends of the strap 1. The two ends of the partition plate 3 are fixedly connected to limit seats 4. The top of the limit seat 4 is fixedly embedded with a threaded sleeve 5. A positioning rod 6 passes through the inside of the threaded sleeve 5. The positioning rod 6 is threadedly connected to the threaded sleeve 5. The two ends of the strap 1 are provided with slots 7 at equal intervals. The positioning rod 6 is movably engaged with the slots 7.

[0038] The above-described structure is designed so that the positioning rod 6, which is threadedly connected to the threaded sleeve 5, can be rotated to move up and down along the threaded sleeve 5. When the positioning rod 6 rises, it can disengage from the current slot 7. Then, by holding the pull bar 2 and utilizing the large friction provided by the anti-slip texture, the restraint band 1 can be pulled stably and effortlessly until the restraint band 1 fits tightly against the patient's body. Then, the downward movement of the positioning rod 6 engages with the corresponding slot 7, thereby fixing the length of the restraint band 1. By selecting different positions of the slot 7 to engage with the positioning rod 6, the restraint length of the restraint band 1 can be flexibly and precisely adjusted to meet the fixation needs of patients with different body types.

[0039] A multi-directional rotating mechanism is installed between the length positioning mechanism and the fixed seat 14 to reduce friction at the connection. The multi-directional rotating mechanism includes a rotating plate 8 fixedly installed on one side of the limiting seat 4. A fixed column 9 is rotatably passed through the middle of the rotating plate 8. Connecting seats 10 are fixedly connected to both ends of the fixed column 9. The rotating plate 8 is rotatably connected to the connecting seat 10 through the fixed column 9. The multi-directional rotating mechanism also includes a first rotating seat 11 fixedly installed on one side of the connecting seat 10. Rotating rods 12 are fixedly installed at both ends of the first rotating seat 11. A second rotating seat 13 is rotatably sleeved on the outer ring of the rotating rods 12. The first rotating seat 11 is rotatably connected to the second rotating seat 13 through the rotating rods 12. One end of the second rotating seat 13 is fixedly connected to the fixed seat 14.

[0040] In the design of the above structure, when the patient's body moves and causes the restraint strap 1 to be pulled or deflected laterally, the limiting seat 4 and the rotating plate 8 will be subjected to force first. Since the rotating plate 8 is rotatably connected to the connecting seat 10 through the fixed column 9, the rotating plate 8 can rotate freely around the fixed column 9 within a certain angle range, thereby converting part of the pulling or deflecting force generated by the patient's movement into the rotation of the rotating plate 8. This avoids large friction caused by force concentration at the connection between the restraint strap 1 and the length positioning mechanism. At the same time, since the first rotating seat 11 and the second rotating seat 13 on one side of the connecting seat 10 are rotatably connected through the rotating rod 12, when the patient's body moves and causes the restraint strap 1 to be pulled or deflected longitudinally, the first rotating seat 11 will rotate inside the second rotating seat 13 under the action of force through the rotating rod 12. The rotation direction and angle of the first rotating seat 11 and the second rotating seat 13 can be flexibly changed according to the actual force situation, further dispersing the force generated by the patient's movement. Compared with the traditional fixed connection between the restraint strap 1 and the connector, this can effectively reduce the friction at the connection.

[0041] A plug-in block 15 is fixedly installed on one side of the fixed base 14. A mating seat 16 is sleeved on the outer ring of the plug-in block 15. The plug-in block 15 and the mating seat 16 are slidably plugged into each other. A plug-in positioning mechanism is set between the plug-in block 15 and the mating seat 16 to realize the connection and separation of the two. The plug-in positioning mechanism includes a snap-fit ​​groove 17 opened inside the mating seat 16. The plug-in block 15 is slidably connected to the mating seat 16 through the snap-fit ​​groove 17. The plug-in positioning mechanism also includes positioning grooves 18 symmetrically opened inside the plug-in block 15. A connecting plate 19 is slidably connected inside the positioning groove 18. A limit rod 20 passes through the inside of the connecting plate 19. Two sets of limit rods 20 are set inside a single set of positioning grooves 18. The connecting plate 19, pressing block 21, and snap-fit ​​block 22 are slidably connected to the limiting rod 20. The pressing block 21 is fixedly installed at one end of the connecting plate 19, and the snap-fit ​​block 22 is fixedly installed at the other end of the connecting plate 19. A plastic spring sheet 23 is provided between the connecting plate 19 and the positioning groove 18. The plastic spring sheet 23 is fixedly connected to the inner wall of the positioning groove 18. An auxiliary spring sheet 24 is fixedly installed on the inner side of the plastic spring sheet 23. The connecting plate 19, pressing block 21, and snap-fit ​​block 22 form a telescopic structure with the positioning groove 18 through the plastic spring sheet 23. The snap-fit ​​block 22 is movably snap-fit ​​connected to the snap-fit ​​groove 17. Two sets of auxiliary spring sheets 24 are provided on the inner side of a single set of plastic spring sheets 23. The plastic spring sheets 23 are obliquely arranged.

[0042] The above structure is designed so that when the fixing seat 14 and the docking seat 16 need to be connected and fixed, the fixing seat 14 is pushed to insert the plug block 15 into the locking groove 17 inside the docking seat 16. During the insertion process, the locking block 22 is squeezed by the inner wall of the locking groove 17, which forces the connecting plate 19 to slide in the positioning groove 18, compressing the plastic spring 23 and the auxiliary spring 24. When the plug block 15 is fully inserted, the locking block 22 corresponds to the locking position of the locking groove 17. At this time, the plastic spring 23 and the auxiliary spring 24 are reset under their own elasticity, pushing the connecting plate 19 so that the locking block 22 is locked into the locking groove 17, realizing a firm connection between the plug block 15 and the docking seat 16, ensuring that the fixation strap will not easily separate during the CT examination, and maintaining a stable fixation effect on the patient. The obliquely set plastic spring 23 and the two sets of auxiliary springs 24 on the inner side not only enhance the elastic recovery force, but also improve the stability of the locking structure, ensuring that the locking block 22 and the locking groove 17 are more tightly and reliably engaged.

[0043] When it is necessary to separate the fixing seat 14 and the docking seat 16, press the pressing block 21 to drive the connecting plate 19 to slide on the limiting rod 20, so that the locking block 22 moves into the positioning groove 18, and compresses the plastic spring 23 and the auxiliary spring 24 again. When the locking block 22 is completely disengaged from the locking groove 17, the plug block 15 can be easily pulled out from the docking seat 16, completing the separation operation of the fixing seat 14 and the docking seat 16, and realizing the disassembly of the restraint strap 1.

[0044] This completes a series of tasks. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0045] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A CT scan fixation strap, comprising a restraint strap (1) and a fixation base (14), characterized in that: The two ends of the restraint strap (1) are fixedly connected with pull strips (2); A length positioning mechanism is provided at both ends of the restraint strap (1) for adjusting the restraint length; A multi-directional rotating mechanism is installed between the length positioning mechanism and the fixed base (14) to reduce friction at the connection; A plug-in block (15) is fixedly installed on one side of the fixed base (14), and a docking seat (16) is sleeved on the outer ring of the plug-in block (15); A plug-in positioning mechanism is provided between the plug-in block (15) and the docking seat (16) to enable the connection and separation of the two.

2. The CT examination fixation band of claim 1, wherein: The pull strips (2) are symmetrically distributed about the center line of the binding strap (1), and the surface of the pull strips (2) is provided with anti-slip textures at equal intervals.

3. A CT scan fixation strap according to claim 1, characterized in that: The length positioning mechanism includes a partition plate (3) that fits inside the bends at both ends of the restraint strap (1). The two ends of the partition plate (3) are fixedly connected to a limiting seat (4). A threaded sleeve (5) is fixedly embedded on the top of the limiting seat (4). A positioning rod (6) passes through the inside of the threaded sleeve (5). Slots (7) are provided at equal intervals at both ends of the restraint strap (1).

4. A CT scan fixation strap according to claim 3, characterized in that: The positioning rod (6) is threadedly connected to the threaded sleeve (5), and the positioning rod (6) is movably engaged with the slot (7).

5. A CT scan fixation strap according to claim 2, characterized in that: The multi-directional rotation mechanism includes a rotating plate (8) fixedly installed on one side of the limiting seat (4), a fixed column (9) rotating through the middle of the rotating plate (8), and connecting seats (10) fixedly connected to both ends of the fixed column (9).

6. A CT scan fixation strap according to claim 5, characterized in that: The multi-directional rotation mechanism also includes a first rotating seat (11) fixedly installed on one side of the connecting seat (10). Rotating rods (12) are fixedly installed at both ends of the first rotating seat (11). The outer ring of the rotating rods (12) is rotatably sleeved with a second rotating seat (13). One end of the second rotating seat (13) is fixedly connected to the fixed seat (14).

7. A CT scan fixation strap according to claim 6, characterized in that: The rotating plate (8) is rotatably connected to the connecting seat (10) via the fixed column (9), and the first rotating seat (11) is rotatably connected to the second rotating seat (13) via the rotating rod (12).

8. A CT scan fixation strap according to claim 1, characterized in that: The plug block (15) is slidably plugged into the docking seat (16).

9. A CT scan fixation strap according to claim 8, characterized in that: The insertion positioning mechanism includes a snap-fit ​​groove (17) inside the docking seat (16), and the insertion block (15) is slidably connected to the docking seat (16) through the snap-fit ​​groove (17).

10. A CT scan fixation strap according to claim 9, characterized in that: The insertion positioning mechanism also includes positioning grooves (18) symmetrically opened inside the insertion block (15). A connecting plate (19) is slidably connected inside the positioning groove (18). A limit rod (20) passes through the inside of the connecting plate (19). A pressing block (21) is fixedly installed at one end of the connecting plate (19). A snap-fit ​​block (22) is fixedly installed at the other end of the connecting plate (19). A plastic spring sheet (23) is provided between the connecting plate (19) and the positioning groove (18). The plastic spring sheet (23) is fixedly connected to the inner wall of the positioning groove (18). An auxiliary spring sheet (24) is fixedly installed on the inner side of the plastic spring sheet (23).

11. A CT scan fixation strap according to claim 10, characterized in that: The limiting rod (20) is provided in two sets inside the single set of positioning grooves (18), and the connecting plate (19), pressing block (21) and snap-fit ​​block (22) are slidably connected to the limiting rod (20).

12. A CT scan fixation strap according to claim 11, characterized in that: The connecting plate (19), pressing block (21) and snap-fit ​​block (22) form a telescopic structure with the positioning groove (18) through plastic spring sheet (23). The snap-fit ​​block (22) is movably snapped into the snap-fit ​​groove (17). The auxiliary spring sheet (24) is provided with two sets inside the single set of plastic spring sheet (23). The plastic spring sheet (23) is obliquely arranged.

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