CN216294074U

CN216294074U - Wrist restraint fixing device for CT examining table

Info

Publication number: CN216294074U
Application number: CN202121841923.1U
Authority: CN
Inventors: 陈建; 黄海霞
Original assignee: Zhenjiang Mental Health Center (zhenjiang Fifth People's Hospital)
Current assignee: Zhenjiang Mental Health Center (zhenjiang Fifth People's Hospital)
Priority date: 2021-08-06
Filing date: 2021-08-06
Publication date: 2022-04-15
Anticipated expiration: 2031-08-06

Abstract

The utility model relates to a wrist restraint fixing device used on a CT examining table, which comprises a table body, wherein a head support is arranged at the head end of the table body, and the wrist restraint fixing device is characterized in that: the wrist fixing device also comprises a U-shaped frame, side plates and a restraining and fixing mechanism, wherein the U-shaped frame is arranged at the head end of the bed body, and the inner side surfaces of two vertical edges of the U-shaped frame are respectively provided with a first T-shaped groove; the side plates are fixed on two sides of the bed body, and a plurality of second T-shaped grooves are formed in the inner side surfaces of the side plates; the restraint fixing mechanism comprises a restraint seat, a restraint belt, a V-shaped clamp and a first torsion spring, wherein a T-shaped block is arranged on the back of the restraint seat and is used for being connected with the first T-shaped groove or the second T-shaped groove in an embedded and clamped mode. The utility model has smart structure and reasonable design, can reliably restrain and fix the wrist part of the patient, avoids the image artifact caused by the disordered and uncooperative hands of the patient during CT examination and reduces the incidence of missed diagnosis or misdiagnosis.

Description

Wrist restraint fixing device for CT examining table

Technical Field

The utility model relates to a restraint tool, in particular to a wrist restraint fixing device used on a CT examining table, belonging to the technical field of medical auxiliary instruments.

Background

CT examination is now an important examination item in hospital examination, and the clarity of CT images is crucial for disease diagnosis, so CT examination generally requires that a patient be kept still after placing a specific position. Restlessness or uncooperative coordination of the patient can cause artifacts in the CT images, resulting in missed or misdiagnosis of the disease, which can have serious consequences. During chest and abdomen CT examination, the two hands of a patient need to be lifted up in a matching way to reduce artifacts, for a patient with dysphoria or no matching, particularly a patient with mental diseases, the matching consciousness is poor, the two hands are difficult to keep the lifting state, the examination is often not finished, and the hands are put down (placed on the body or waved in the air), so that the CT image has the artifacts and even does not meet the diagnosis requirement. However, for the correct diagnosis of the disease, the patient can only be examined repeatedly, which brings too much radiation to the patient and also increases the workload of the technician.

Therefore, there is a need to develop a wrist restraining fixture for use on a CT table to solve the above problems.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art, and provides a wrist restraining and fixing device for a CT (computed tomography) examination bed, which has the advantages of ingenious structure and reasonable design, can reliably restrain and fix the wrist part of a patient, avoids the phenomenon that the hands of the patient do not move or cooperate with each other to cause image artifacts when the patient is subjected to CT examination, and reduces the incidence rate of missed diagnosis or misdiagnosis.

According to the technical scheme provided by the utility model: be used in wrist restraint fixing device on CT inspection bed, including the bed body, head rest, its characterized in that are installed to the bed body head end: the wrist fixing device also comprises a U-shaped frame, side plates and a restraining and fixing mechanism, wherein the U-shaped frame is arranged at the head end of the bed body, and the inner side surfaces of two vertical edges of the U-shaped frame are respectively provided with a first T-shaped groove; the side plates are fixed on two sides of the bed body, and a plurality of second T-shaped grooves are formed in the inner side surfaces of the side plates; the restraint fixing mechanism comprises a restraint seat, a restraint belt, a V-shaped clamp and a first torsion spring, wherein a T-shaped block is arranged on the back of the restraint seat and is used for being connected with a first T-shaped groove or a second T-shaped groove in an embedding and clamping manner, one end of the restraint belt is fixedly connected to the bottom end of the inner side surface of the restraint seat, an L-shaped through belt groove is arranged in the restraint seat, an inlet of the L-shaped through belt groove is located in the middle of the inner side surface of the restraint seat, an outlet of the L-shaped through belt groove is located on the top surface of the restraint seat, and the other end of the restraint belt penetrates through the top surface of the restraint seat and is led out; the inside clamping installation cavity that still is provided with that is located other trough of belt of wearing of restriction seat, the V-arrangement clamping sets up in the clamping installation cavity, and the rotation of middle part of V-arrangement clamping installs the pivot, the both ends of pivot are installed in the both sides of clamping installation cavity, and the cover is equipped with first torsional spring in the pivot, the both ends of first torsional spring are fixed respectively to be inlayed and are established on restriction seat and V-arrangement clamping, and first torsional spring is in compression state, and the head end of V-arrangement clamping closely butts the side of about band under first torsional spring effect.

As a further improvement of the utility model, the U-shaped frame is connected with the head end of the bed body through a telescopic mechanism; the telescopic mechanism comprises smooth guide rods, a screw rod, a nut seat and a turntable, two smooth guide rods are symmetrically arranged at the positions of the head end of the bed body, which are positioned at the two sides of the head support, one end of each smooth guide rod is fixedly connected with the bed body, guide through holes are formed in the two sides of the U-shaped frame, and the U-shaped frame is slidably connected with the two smooth guide rods through the guide through holes; the middle of the head end of the bed body is provided with a screw rod below the head support, one end of the screw rod is rotatably connected with the bed body, the middle of the transverse edge of the U-shaped frame is provided with a screw rod mounting hole, the outer side surface of the U-shaped frame corresponding to the screw rod mounting hole is provided with a nut seat, the other end of the screw rod penetrates through the screw rod mounting hole and then is connected in the nut seat, and the turntable is fixedly mounted at the end part of the screw rod.

As a further improvement of the utility model, a concave arc-shaped groove is arranged at the lower part of the inner side surface of the restraint seat and opposite to the front surface of the restraint belt, and a soft cushion layer is arranged on the surface of the concave arc-shaped groove.

As a further improvement of the utility model, the head end of the V-shaped clamp is provided with saw teeth with arc-shaped tips.

As a further improvement of the utility model, the tail end of the restraint strap is provided with a pull ring. So set up, be convenient for taut about band on the one hand and retrain fixedly, unexpected roll-off L shape threading groove when on the other hand can prevent about band to loosen.

As a further improvement of the utility model, the head rest comprises a support body, a pillow plate and a spongy cushion, one end of the support body, which is close to the bed body, is rotatably installed on the bed body through a pin shaft, a second torsion spring is sleeved on the pin shaft, two ends of the second torsion spring are respectively and fixedly embedded in the bed body and the support body, and the second torsion spring is in a compressed state; the upper surface of the support body is fixedly provided with a pillow plate, and the upper surface of the pillow plate is fixedly provided with a spongy cushion.

As a further improvement of the utility model, the main parts of the U-shaped frame, the side plates and the constraint fixing mechanism are all made of high-strength engineering plastics.

Compared with the prior art, the utility model has the following advantages:

1) the utility model has the advantages of ingenious structure and reasonable design, the U-shaped frame capable of quickly installing the restraint fixing mechanism is arranged at the head of the bed body, the side plates capable of quickly installing the restraint fixing mechanism are arranged at the two sides of the bed body, the operation can be flexibly changed according to actual conditions during examination, the wrist part of a patient can be reliably restrained and fixed, the phenomenon that the hand of the patient is disordered and not matched when the patient is subjected to CT examination to cause an image artifact is avoided, and the incidence rate of missed diagnosis or misdiagnosis is reduced.

2) The mounting position of the restraint fixing mechanism can be adjusted according to the length of the arm of the patient, so that the device is high in adaptability and flexibility; because restraint fixed establishment can swiftly dismantle, do not influence the whole outward appearance of inspection bed.

Drawings

FIG. 1 is a front view of the structure of an embodiment of the present invention.

Fig. 2 is a perspective view of a U-shaped frame in the embodiment of the present invention.

Fig. 3 is an enlarged sectional view taken along the line a-a in fig. 1.

Fig. 4 is an enlarged schematic view of B in fig. 3.

FIG. 5 is a top view of a restraining fixture in accordance with an embodiment of the present invention.

Description of reference numerals: 1-bed body, 2-head support, 2.1-support body, 2.2-pillow plate, 2.3-sponge cushion, 2.4-second torsion spring, 3-U-shaped frame, 3 a-first T-shaped groove, 3 b-guide through hole, 3 c-screw rod mounting hole, 4-side plate, 4 a-second T-shaped groove, 5-restraining seat, 5 a-T-shaped block, 5 b-L-shaped through groove, 5 c-clamp mounting cavity, 5 d-concave arc-shaped groove, 6-restraining belt, 7-V-shaped clamp, 8-first torsion spring, 9-rotating shaft, 10-smooth guide rod, 11-screw rod, 12-nut seat, 13-rotating disk, 14-soft cushion layer and 15-pull ring.

Detailed Description

The utility model is further illustrated by the following specific figures and examples.

As shown in fig. 1 to 5, the embodiment discloses a wrist restraining and fixing device for a CT examination bed, which comprises a bed body 1, a head support 2 is mounted at the head end of the bed body 1, the wrist restraining and fixing device further comprises a U-shaped frame 3, a side plate 4 and a restraining and fixing mechanism, the U-shaped frame 3 is mounted at the head end of the bed body 1, and the inner side surfaces of two vertical edges of the U-shaped frame 3 are respectively provided with a first T-shaped groove 3 a; the side plates 4 are fixed on two sides of the bed body 1, and the inner side surfaces of the side plates 4 are provided with a plurality of second T-shaped grooves 4 a; the restraint fixing mechanism comprises a restraint seat 5, a restraint belt 6, a V-shaped clamp 7 and a first torsion spring 8, wherein a T-shaped block 5a is arranged on the back of the restraint seat 5, the T-shaped block 5a is used for being connected with a first T-shaped groove 3a or a second T-shaped groove 4a in an embedding and clamping manner, one end of the restraint belt 6 is fixedly connected to the bottom end of the inner side surface of the restraint seat 5, an L-shaped belt penetrating groove 5b is arranged in the restraint seat 5, an inlet of the L-shaped belt penetrating groove 5b is located in the middle of the inner side surface of the restraint seat 5, an outlet of the L-shaped belt penetrating groove 5b is located on the top surface of the restraint seat 5, and the other end of the restraint belt 6 penetrates through the top surface of the side surface of the restraint seat 5 and is led out; restraint 5 inside being located and wearing the other clamping installation cavity 5c that still is provided with of trough of belt 5b of seat, V-arrangement clamping 7 sets up in clamping installation cavity 5c, and the rotation of middle part of V-arrangement clamping 7 installs pivot 9, install in the both sides of clamping installation cavity 5c at pivot 9 both ends, and the cover is equipped with first torsional spring 8 on the pivot 9, the both ends of first torsional spring 8 are fixed respectively to be inlayed and are established on restraint seat 5 and V-arrangement clamping 7, and first torsional spring 8 is in compression state, and the head end of V-arrangement clamping 7 is in the side of the about band 6 of inseparable butt under the effect of first torsional spring 8.

During clinical application, a patient lies on the bed body 1, the head is placed on the head support 2, and when the patient does not cooperate with examination and needs to carry out restraint fixing on limbs, the installation position of the restraint fixing mechanism can be selected according to the first advanced scanning position or the foot advanced scanning position. If the patient is in the head-first scanning position, the restraint fixing mechanism needs to be arranged on the U-shaped frame 3 at the head end of the bed body 1. The restraint seat 5 in the restraint fixing mechanism is clamped in the first T-shaped groove 3a on the U-shaped frame 3 through the T-shaped block 5a on the back side of the restraint seat, then the tail end of the V-shaped clamp 7 is pressed, the first torsion spring 8 is further compressed, the head end of the V-shaped clamp 7 is separated from and abutted to the restraint belt 6 at the moment, the restraint belt 6 can be pulled upwards, after a certain length is pulled out, the wrist of a patient passes through the space enclosed by the restraint belt 6 and the restraint seat 5, then the restraint belt 6 is pulled continuously, the wrist of the patient is bound and fixed by the restraint belt 6, then the V-shaped clamp 7 is loosened, the V-shaped clamp 7 is reset under the acting force of the first torsion spring 8, the head end of the V-shaped clamp 7 tightly abuts against the restraint belt 6, the restraint belt 6 cannot move reversely, so that the wrist restraint fixing of the hand of the patient is finished, and the patient is prevented from being disturbed by hands in the CT scanning process, the occurrence of artifacts is prevented, which affects the accurate diagnosis of doctors. If the patient is in the foot-advanced scanning position, the restraint fixing mechanism needs to be arranged on the side plates 4 at the two sides of the bed body 1. The restraint seat 5 in the restraint fixing mechanism is clamped in the second T-shaped groove 4a on the side plate 4 through the T-shaped block 5a on the back surface of the restraint seat, and the plurality of second T-shaped grooves 4a can install the restraint fixing mechanism at a proper position according to the individual condition of a patient and then restrain the wrist of the patient in the same way.

As shown in fig. 1 to 3, in this embodiment, the U-shaped frame 3 is connected to the head end of the bed body 1 through a telescopic mechanism; the telescopic mechanism comprises smooth guide rods 10, a screw rod 11, a nut seat 12 and a rotary table 13, two smooth guide rods 10 are symmetrically arranged at positions of the head end of the bed body 1, which are positioned at two sides of the head support 2, one end of each smooth guide rod 10 is fixedly connected with the bed body 1, guide through holes 3b are formed in two sides of the U-shaped frame 3, and the U-shaped frame 3 is in sliding connection with the two smooth guide rods 10 through the guide through holes 3 b; the middle of the head end of the bed body 1 and below the head support 2 is provided with a screw rod 11, one end of the screw rod 11 is rotatably connected with the bed body 1, the middle of the transverse edge of the U-shaped frame 3 is provided with a screw rod mounting hole 3c, the outer side surface of the U-shaped frame 3 corresponding to the screw rod mounting hole 3c is provided with a nut seat 12, the other end of the screw rod 11 penetrates through the screw rod mounting hole 3c and then is connected into the nut seat 12, and the rotary table 13 is fixedly installed at the end part of the screw rod 11. So set up, can drive lead screw 11 through rotating carousel 13 and rotate, lead screw 11 rotates and then drives nut seat 12 and whole U-shaped frame 3 along smooth guide arm 10 axial slip on the horizontal direction, just so can come the position of nimble adjustment restraint fixed establishment according to patient's arm length, ensure that the restraint effect is reliable.

As shown in fig. 3, in this embodiment, a concave arc-shaped groove 5d is formed in a portion of a lower portion of an inner side surface of the restraining seat 5, which is opposite to a front surface of the restraining belt 6, and a cushion layer 14 is disposed on a surface of the concave arc-shaped groove 5 d. So set up, fix in a circular shape space when patient's wrist is retrained, such space matches with the physiology shape of wrist, and not only the restraint effect is better, and is safer moreover. The cushion layer 14 on the surface of the concave arc-shaped groove 5d is beneficial to protecting the patient. The cushion layer 14 may be made of a material conventional in the art, such as sponge, silicone, rubber, etc.

In the present embodiment, as shown in fig. 5, the tip of the V-shaped clip 7 is provided with saw teeth having an arc-shaped tip. So set up, V-arrangement clamping 7 can support about band 6 more stably reliably, avoids about band 6 unexpected not hard up.

In the present embodiment, as shown in fig. 1 and 3, a pull ring 15 is provided at the end of the restraining strip 6. So set up, on the one hand be convenient for taut restraint area 6 and restrain fixedly, on the other hand can prevent that restraint area 6 unexpected roll-off L shape threading slot 5b when loosening.

As shown in fig. 1, in this embodiment, the head rest 2 includes a support body 2.1, a pillow plate 2.2 and a sponge pad 2.3, one end of the support body 2.1 close to the bed body 1 is rotatably mounted on the bed body 1 through a pin, a second torsion spring 2.4 is sleeved on the pin, two ends of the second torsion spring 2.4 are respectively and fixedly embedded in the bed body 1 and the support body 2.1, and the second torsion spring 2.4 is in a compressed state; the upper surface of the support body 2.1 is fixedly provided with a pillow plate 2.2, and the upper surface of the pillow plate 2.2 is fixedly provided with a spongy cushion 2.3. So set up, when clinical use, the patient truck lies on bed body 1, and the head is put on foam-rubber cushion 2.3, and when the patient because restless and the head is during to power down, the support body 2.1 will be rotated downwards around the round pin axle, and second torsional spring 2.4 is further compressed this moment, unloads the power of patient's head, reduces the patient and struggles the ability. When the patient returns to calm, the support body 2.1 rotates upwards under the action of the second torsion spring 2.4, and provides stable support for the head. Such a head rest 2 has a certain elastic cushioning effect, and can protect a patient.

In this embodiment, the main components of the U-shaped frame 3, the side plates 4 and the constraining and fixing mechanism are preferably made of high-strength engineering plastics, so that scanning artifacts are not generated and the CT images are not affected.

The above description is only for the preferred embodiment of the present invention, and the above specific embodiments are not intended to limit the present invention. Various modifications and alterations may occur to those skilled in the art without departing from the spirit and scope of the utility model, and such modifications and alterations should be accorded the broadest interpretation so as to encompass all such modifications and alterations.

Claims

1. Wrist restraint fixing device for on CT inspection bed, including bed body (1) and symmetry fixed mounting 1, wrist restraint fixing device for on CT inspection bed, including bed body (1), head rest (2), its characterized in that are installed to bed body (1) head end: the wrist fixing device further comprises a U-shaped frame (3), side plates (4) and a restraining fixing mechanism, wherein the U-shaped frame (3) is installed at the head end of the bed body (1), and the inner side surfaces of two vertical edges of the U-shaped frame (3) are respectively provided with a first T-shaped groove (3 a); the side plates (4) are fixed on two sides of the bed body (1), and a plurality of second T-shaped grooves (4a) are formed in the inner side surfaces of the side plates (4); the restraint fixing mechanism comprises a restraint seat (5), a restraint belt (6), a V-shaped clamp (7) and a first torsion spring (8), a T-shaped block (5a) is arranged on the back of the restraint seat (5), the T-shaped block (5a) is used for being connected with a first T-shaped groove (3a) or a second T-shaped groove (4a) in an embedding and clamping matching mode, one end of the restraint belt (6) is fixedly connected to the bottom end of the inner side face of the restraint seat (5), an L-shaped belt penetrating groove (5b) is arranged inside the restraint seat (5), the inlet of the L-shaped belt penetrating groove (5b) is located in the middle of the inner side face of the restraint seat (5), the outlet of the L-shaped belt penetrating groove (5b) is located on the top face of the restraint seat (5), and the other end of the restraint belt (6) penetrates through the top face of the side face of the restraint seat (5) and is led out; restraint seat (5) inside be located and wear by trough of belt (5b) other clamping installation cavity (5c) still be provided with, V-arrangement clamping (7) set up in clamping installation cavity (5c), and the rotation of the middle part of V-arrangement clamping (7) installs pivot (9), install in the both sides of clamping installation cavity (5c) pivot (9) both ends, the cover is equipped with first torsional spring (8) on pivot (9), the both ends of first torsional spring (8) are fixed respectively to be inlayed and are established on restraint seat (5) and V-arrangement clamping (7), and first torsional spring (8) are in compression state, and the side of the about band of inseparable butt (6) is under first torsional spring (8) effect to the head end of V-arrangement clamping (7).

2. A wrist restraining fixture for use on a CT examination table as defined in claim 1 wherein: the U-shaped frame (3) is connected with the head end of the bed body (1) through a telescopic mechanism; the telescopic mechanism comprises smooth guide rods (10), a screw rod (11), a nut seat (12) and a rotary table (13), two smooth guide rods (10) are symmetrically arranged at positions of the head end of the bed body (1) which are positioned at two sides of the head support (2), one end of each smooth guide rod (10) is fixedly connected with the bed body (1), guide through holes (3b) are formed in two sides of the U-shaped frame (3), and the U-shaped frame (3) is in sliding connection with the two smooth guide rods (10) through the guide through holes (3 b); the middle position that lies in under head rest (2) of the head end of the bed body (1) is provided with a lead screw (11), the one end of lead screw (11) is rotated with the bed body (1) and is connected, U-shaped frame (3) horizontal limit middle part is equipped with lead screw mounting hole (3c), and nut seat (12) are installed to the position that U-shaped frame (3) lateral surface corresponds lead screw mounting hole (3c), connect in nut seat (12) after lead screw (11) other end passes lead screw mounting hole (3c), carousel (13) fixed mounting is at lead screw (11) tip.

3. A wrist restraining fixture for use on a CT examination table as defined in claim 1 wherein: the lower part of the inner side surface of the restraint seat (5) is provided with a concave arc-shaped groove (5d) at the position opposite to the front surface of the restraint belt (6), and the surface of the concave arc-shaped groove (5d) is provided with a soft cushion layer (14).

4. A wrist restraining fixture for use on a CT examination table as defined in claim 1 wherein: the head end of the V-shaped clamp (7) is provided with sawteeth with arc-shaped tips.

5. A wrist restraining fixture for use on a CT examination table as defined in claim 1 wherein: the tail end of the restraint strap (6) is provided with a pull ring (15).

6. A wrist restraining fixture for use on a CT examination table as defined in claim 1 wherein: the head support (2) comprises a support body (2.1), a pillow plate (2.2) and a spongy cushion (2.3), one end, close to the bed body (1), of the support body (2.1) is rotatably installed on the bed body (1) through a pin shaft, a second torsion spring (2.4) is sleeved on the pin shaft, two ends of the second torsion spring (2.4) are fixedly embedded in the bed body (1) and the support body (2.1) respectively, and the second torsion spring (2.4) is in a compressed state; the upper surface of the support body (2.1) is fixedly provided with a pillow plate (2.2), and the upper surface of the pillow plate (2.2) is fixedly provided with a spongy cushion (2.3).

7. A wrist restraining fixture for use on a CT examination table as defined in claim 1 wherein: the main parts of the U-shaped frame (3), the side plates (4) and the restraining and fixing mechanism are all made of high-strength engineering plastics.