Auxiliary support for CT examination

Abstract

The utility model relates to the technical field of medical equipment, in particular to an auxiliary support for CT examination. Comprising a supporting frame, a connecting plate is arranged on one side of the supporting frame, a supporting rod is rotationally connected to the supporting frame, screw rods are rotationally connected to the two sides of the supporting rod, a mounting base is rotationally connected to the end, away from the connecting plate, of the supporting frame, and a driving assembly is arranged on the mounting base; the screw rod penetrates through the mounting base and is connected with the driving assembly; a pulley is arranged at the end, away from the supporting frame, of the supporting rod. The auxiliary bracket provided by the utility model can be mounted on a CT (Computed Tomography) examination bed to pull the head of a patient so as to finish special and complicated medical examination; the auxiliary support can extend out of the hole of the CT equipment, and the situation that the life safety of a patient is endangered due to the fact that a suspended heavy object rapidly moves and collides in the CT hole is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to an auxiliary bracket for CT examination. Background Art

[0002] The upper cervical spine is a very important part of the human body, with rich blood vessels and nervous systems. The upper cervical spine complex deformity surgery is based on the CT images of the imaging equipment, and complex and professional measurements are made to formulate a careful surgical plan and perform a high-difficulty operation to save the patient's life. The objects of upper cervical spine complex surgery are generally complex deformities, many of which are congenital diseases, long-term developmental abnormalities, and many vertebrae are severely deformed or even fused together.

[0003] In order to evaluate whether the deformed vertebrae can be separated and repositioned during surgery, it is necessary to collect CT images under traction, obtain data of each vertebra, measure the cervical vertebrae, evaluate whether the surgery can achieve the expected results, and study how to avoid damaging blood vessels and nerves during surgery, and how to perform vertebral nailing and fixation. CT equipment is not equipped with such highly professional accessories. Currently, the patient's head is pulled with a rope and heavy objects are hung under the CT head frame. This method is very difficult to fix. There is a lot of friction between the rope and the CT head frame, and it is difficult to transmit the traction force to the head, which does not achieve the purpose of traction; it is also easy to hit the CT auxiliary equipment, which is life-threatening when the CT examination bed moves quickly. Therefore, the utility model is proposed. Utility Model Content

[0004] The utility model aims to provide an auxiliary bracket for CT examination, which can be installed on a CT examination bed to pull the patient's head and can extend out of the hole of the CT equipment to avoid the situation where the hanging heavy objects move quickly and collide in the CT, causing endangerment to the patient's life safety.

[0005] The utility model provides an auxiliary bracket for CT examination, comprising a support frame, a connecting plate is provided on one side of the support frame, a support rod is rotatably connected to the support frame, screw rods are rotatably connected to both sides of the support rod, an end of the support frame away from the connecting plate is rotatably connected to a mounting base, a driving assembly is provided on the mounting base, the screw rod passes through the mounting base and is connected to the driving assembly; a pulley is provided at one end of the support rod away from the support frame.

[0006] Furthermore, the support frame comprises a connecting block, and two L-shaped mounting blocks are symmetrically arranged on the side wall of the connecting block, and the two ends of the mounting base are rotatably connected to the two mounting blocks respectively.

[0007] Furthermore, the driving assembly includes a driving shaft, a guide gear group is provided on the driving shaft, a second driving gear is provided at the bottom of the guide gear group, and a second driven gear meshing with the second driving gear is respectively provided on the two screw rods; the two ends of the driving shaft are respectively rotatably connected to two mounting plates fixed on the mounting base.

[0008] Furthermore, a crank is provided at one end of the driving shaft.

[0009] Furthermore, the guide gear set includes a first driving gear fixed on the driving shaft, and a first driven gear meshing with the first driving gear is provided on the top of the second driving gear.

[0010] Furthermore, a first rotating shaft is rotatably connected between the two mounting blocks, and one end of the support rod away from the pulley is fixed to the first rotating shaft.

[0011] Furthermore, the second driving gear and the second driven gear are rotatably connected to the mounting base respectively.

[0012] Furthermore, the inner wall of the second driven gear is provided with an internal thread, and the screw rod is provided with an external thread matching the internal thread.

[0013] Furthermore, the support rod is provided with a second rotating shaft, and both ends of the second rotating shaft are respectively connected to the screw rod.

[0014] Furthermore, it also includes a traction rope, which is located in the wheel groove of the pulley, and a traction weight is provided at one end of the traction rope; the center line of the pulley wheel groove is aligned with the center line of the support rod.

[0015] In summary, compared with the prior art, the utility model has the following advantages:

[0016] The technical solution provided by the utility model is to set a support frame connected to the CT examination bed. When in use, the head bracket on the CT examination bed is disassembled, and the support frame is installed on the CT examination bed through a connecting plate. During examination, the support rod therein can extend out of the hole of the CT device, which can avoid the danger of the patient caused by the rapid movement and collision of the suspended heavy objects in the CT. When in use, the traction rope of the patient's head is passed between two screw rods and placed in the wheel groove of the pulley, and a traction weight of appropriate weight is tied to the other end of the traction rope to achieve the traction effect, and the gravity is transmitted through the set pulley to make the force in traction constant; the angle of the support rod is adjusted by the set installation base, the screw rod and the driving component that can drive the screw rod to rise and fall, and the traction angle can be adjusted according to the patient's condition to achieve the purpose of personalized evaluation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is a schematic diagram of the structure of the auxiliary bracket for CT examination in an embodiment of the utility model;

[0019] Figure 2 This is a front view of an auxiliary bracket for CT examination in an embodiment of the utility model;

[0020] Figure 3 In the embodiment of the utility model Figure 1 A partial enlarged view of the middle A;

[0021] Figure 4 It is a structural schematic diagram of the installation base in the embodiment of the utility model.

[0022] Explanation of the reference numerals: 1-support frame; 101-connecting block; 102-mounting block; 103-first rotating shaft; 104-bearing; 2-connecting plate; 201-fixing hole; 3-support rod; 4-second rotating shaft; 5-screw rod; 6-mounting base; 601-mounting plate; 7-driving assembly; 701-driving shaft; 702-first driving gear; 703-first driven gear; 704-second driving gear; 705-second driven gear; 706-crank handle; 8-pulley; 9-U-shaped block; 10-traction rope; 11-traction weight. DETAILED DESCRIPTION

[0023] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0026] Example

[0027] An auxiliary support for CT examination, such as Figure 1 and Figure 2 As shown, it includes a support frame 1, a support rod 3 is rotatably connected to the support frame 1, a pulley 8 is provided at one end of the support rod 3, a mounting hole is provided on the support rod 3, a second rotating shaft 4 is fixed in the mounting hole, both ends of the second rotating shaft 4 are rotatably connected with screws 5 through bearings, a mounting base 6 is provided on the support frame 1, a driving assembly 7 is provided on the mounting base 6, and the screw 5 passes through the mounting base 6 and is connected to the driving assembly 7.

[0028] The support frame 1 provides support for the installation support of the drive assembly 7 and the support rod 3, including a connecting block 101, a connecting plate 2 is provided on one of the side walls of the connecting block 101, and a fixing hole 201 is provided on the connecting plate 2, which is connected and fixed with the CT examination bed to prevent the support frame 1 from falling out. The shape and size of the connecting plate 2 in this embodiment need to match the installation position of the head bracket on the CT examination bed. When in use, the head bracket is directly disassembled and the connecting plate 2 is installed. Two L-shaped mounting blocks 102 are symmetrically fixed on the side walls opposite to the connecting block 101 and the connecting plate 2, and a first rotating shaft 103 is rotatably connected between the two mounting blocks 102. Bearings are provided at both ends of the first rotating shaft 103, and the two bearings are respectively installed on the two mounting blocks 102.

[0029] The end of the mounting block 102 away from the connecting block 101 is rotatably connected to the mounting base 6, and round rods are fixed on both sides of the bottom of the mounting base 6, and bearings 104 are provided on the round rods. The bearings 104 are respectively located at the upper part of the vertical sections of the two mounting blocks 102. By providing the bearings, the mounting base 6 can freely and automatically adjust the angle when the screw rod 5 is raised or lowered.

[0030] like Figure 1 and Figure 3 As shown, the driving assembly 7 includes a driving shaft 701, a guide gear set, a second driving gear 704, a second driven gear 705, and a crank 706. Figure 4 As shown, two mounting plates 601 are symmetrically fixed on two opposite side walls of the mounting base 6, and a driving shaft 701 passes through the two mounting plates 601, and the driving shaft 701 is rotatably connected with the mounting plates 601. A crank 706 is fixed to the end of the driving shaft 701 away from the support frame 1, and the driving shaft 701 is rotated by the crank 706, which is convenient for operation. The guide gear set includes a first driving gear 702 and a first driven gear 703 that are meshed and connected. The first driving gear 702 is fixed on the driving shaft 701, and a second driving gear 704 is fixed at the bottom of the first driven gear 703. The first driven gear 703 and the second driving gear 704 are coaxially rotatably connected to the mounting base 6. The top of the screw rod 5 passes through the mounting base 6, and a second driven gear 705 is sleeved on the outside thereof, and the second driven gear 705 is meshed with the second driving gear 704. An internal thread is provided on the inner wall of the second driven gear 705, and an external thread matching the internal thread is provided on the outer peripheral wall of the screw rod 5. The second driven gear 705 and the second driving gear 704 are both rotatably connected to the mounting base 6 .

[0031] in, Figure 1 and Figure 2The multiple triangular holes on the middle support rod 3 are designed for aesthetics and to reduce the overall weight. Only one mounting hole is provided for mounting the second rotating shaft 4. The rotation direction is changed by the guide gear set, and the screw rod is raised or lowered by the second driving gear 704 and the second driven gear 705 to adjust the angle of the support rod 3.

[0032] like Figure 2 As shown, a traction rope 10 is placed in the wheel groove of the pulley 8, and one end of the traction rope 10 is connected to the traction weight 11. When in use, one end of the traction rope 10 is connected to the traction belt or traction bracket on the patient's head to achieve a traction effect. The traction rope 10 adopts a conventional traction rope in this field, and a traction rope made of fiber material can be used, which has the characteristics of high strength, light texture, easy winding, corrosion resistance, high temperature resistance, flame retardancy, and wear resistance. For example, Kevlar aramid fireproof rope, 3mm diameter can withstand a breaking tension of 0.5 tons, which is very suitable for throwing ropes. The traction weight 11 adopts a conventional traction weight in this field. When in use, a weight of appropriate weight is selected according to the patient's needs and fastened to the traction rope 10.

[0033] A U-shaped block 9 is fixedly mounted on one end of the support rod 3 away from the support frame 1 , and both ends of the pulley 8 are rotatably connected to the U-shaped block 9 , and the center line of the wheel groove of the pulley 8 is aligned with the center line of the support rod 3 .

[0034] The method of using the auxiliary bracket for CT examination provided by the utility model is as follows: when a patient with upper cervical deformity needs to be examined, the head bracket on the original CT examination bed is removed and replaced with the auxiliary bracket, the connecting plate 2 is installed at the position of the original head bracket, the pulley 8 faces the end away from the examination bed, the patient lies on his back on the examination bed with his head facing the auxiliary bracket, the traction rope 10 is connected to the traction belt or traction bracket of the patient's head, the traction rope 10 passes through the support frame 1 and between the two screws 5, and is placed in the slide groove of the pulley 8, and a traction weight 11 of appropriate weight is hung on the other end of the traction rope 10. According to the size of the patient's head circumference and the required angle, the crank 706 is turned, and the crank 706 drives the drive shaft 701 to rotate, which in turn drives the guide gear set to rotate, and further drives the second drive gear 704 to rotate. The second driven gear 705 rotates under the drive of the second drive gear 704; the second driven gear 705 is provided with a thread that matches the thread on the screw 5, so the screw 5 rises and falls with the rotation of the second driven gear 705, and finally the support rod 3 is lifted and lowered, achieving the effect of personalized traction.

[0035] The auxiliary bracket for CT examination provided by the utility model is designed with a crank and a guide gear set, the crank can be operated outside the CT hole to adjust the traction direction, and it is easy to use; a second driving gear and two second driven gears are designed to ensure that the two screws are lifted and lowered synchronously, which is conducive to the stable lifting and lowering of the support frame; the height of the support rod can be designed according to the CT aperture, and when the CT bed moves during the examination, the suspended traction weight will not touch the CT parts, so as to avoid causing safety accidents.

[0036] The auxiliary bracket for CT examination provided by the utility model can match the CT examination bed, provide assistance for traction examination of cervical deformity in orthopedics, can be designed according to the CT aperture, and can freely enter and exit the CT scanning hole. Using the traction auxiliary bracket for CT scanning can better measure the detailed data of the vertebral body, and evaluate the possibility of vertebral reduction under traction, as well as the effect achieved after the operation, and has very good clinical value.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. An auxiliary bracket for CT examination, characterized in that: The invention comprises a support frame (1), a connecting plate (2) is provided on one side of the support frame (1), a support rod (3) is rotatably connected to the support frame (1), screw rods (5) are rotatably connected to both sides of the support rod (3), an end of the support frame (1) away from the connecting plate (2) is rotatably connected to a mounting base (6), a driving assembly (7) is provided on the mounting base (6), and the screw rod (5) passes through the mounting base (6) and is connected to the driving assembly (7); a pulley (8) is provided on the end of the support rod (3) away from the support frame (1).

2. The auxiliary support for CT examination according to claim 1, characterized in that: The support frame (1) comprises a connecting block (101), two L-shaped mounting blocks (102) are symmetrically arranged on the side wall of the connecting block (101), and the two ends of the mounting base (6) are rotatably connected to the two mounting blocks (102) respectively.

3. The auxiliary support for CT examination according to claim 2, characterized in that: The driving assembly (7) comprises a driving shaft (701), a guide gear set is provided on the driving shaft (701), a second driving gear (704) is provided at the bottom of the guide gear set, and the two screw rods (5) are respectively provided with a second driven gear (705) meshing with the second driving gear (704); the two ends of the driving shaft (701) are respectively rotatably connected to two mounting plates (601) fixed on the mounting base (6).

4. The auxiliary support for CT examination according to claim 3, characterized in that: A crank (706) is provided at one end of the driving shaft (701).

5. The auxiliary support for CT examination according to claim 3, characterized in that: The guide gear set comprises a first driving gear (702) fixed on the driving shaft (701), and a first driven gear (703) meshing with the first driving gear (702) is provided on the top of the second driving gear (704).

6. The auxiliary support for CT examination according to claim 3, characterized in that: A first rotating shaft (103) is rotatably connected between the two mounting blocks (102), and one end of the support rod (3) away from the pulley (8) is fixed to the first rotating shaft (103).

7. The auxiliary support for CT examination according to claim 3, characterized in that: The second driving gear (704) and the second driven gear (705) are respectively rotatably connected to the mounting base (6).

8. The auxiliary support for CT examination according to claim 3, characterized in that: The inner wall of the second driven gear (705) is provided with an internal thread, and the screw rod (5) is provided with an external thread matching the internal thread.

9. The auxiliary support for CT examination according to claim 1, characterized in that: The support rod (3) is provided with a second rotating shaft (4), and both ends of the second rotating shaft (4) are respectively connected to the screw rod (5).

10. The auxiliary support for CT examination according to claim 1, characterized in that: It also includes a traction rope (10), which is located in the wheel groove of the pulley (8), and a traction weight (11) is provided at one end of the traction rope (10); the center line of the wheel groove of the pulley (8) is aligned with the center line of the support rod (3).

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