CN113101091A

CN113101091A - Device for assisted recovery of intestinal air fistula

Info

Publication number: CN113101091A
Application number: CN202110524381.3A
Authority: CN
Inventors: 丁威威; 刘宝晨; 殷伟; 吴翠丽; 黎介寿
Original assignee: Eastern Theater General Hospital of PLA
Current assignee: Eastern Theater General Hospital of PLA
Priority date: 2020-07-07
Filing date: 2020-07-07
Publication date: 2021-07-13
Anticipated expiration: 2040-07-07
Also published as: CN111743710A; CN111743710B; CN113101091B

Abstract

A device for assisted recovery of an intestinal air fistula is disclosed. The device is used for helping the attendant to carry and pull the patch placed at the intestinal cavity fistula, and the displacement of the patch is prevented. During the use, the support of accompanying and attending to personnel arch bridge shape is placed on the sick bed, adjusts the support and slides to fistula top position along the length direction of sick bed. Adjust a plurality of sliding assembly, make it be in required position and angle, pull out the line in the spooler and make the wire hook catch and carry the line, the spooler is automatic to be tightened up after adjustment length and dynamics, and the patch is in the state of carrying by the needs promptly, provides the support to the intestinal air fistula department by the patch shutoff. Through the early warning processing of the invention, the change of the patch which needs to be observed by human eyes in the prior art, particularly the change of pressure or the deformation caused by the pressure change, is converted into the gray difference processing of the picture, and whether the pressure or the position on the patch is changed or not is determined through the gray difference processing, so that the accuracy of the early warning judgment efficiency is improved, and the defect that the prior art depends on human eye observation is avoided.

Description

Device for assisted recovery of intestinal air fistula

The application is a divisional application of a patent application with the name of 2020106481570, which is filed on 07/2020 and is named as a device for assisted recovery of intestinal air fistula, a using method and an early warning method.

Technical Field

The invention relates to computer image processing, in particular to the field of early warning processing of an intestinal air fistula auxiliary patch, and specifically relates to a device for auxiliary recovery of an intestinal air fistula and a use method and an early warning method thereof.

Background

An enterocutaneous fistula is a special enterocutaneous fistula, which means that an enterocoel fistula is directly exposed in the air without skin, subcutaneous or other tissue coverage, and also becomes an exposed enterofistula, is an abnormal passage after an enterocoel is opened or damaged, and is most commonly used for abdominal opening in a surgical injury control operation. Restoration of the stoma is critical.

Traditional patches are used for assisting in diversion, and because the cut skin cannot keep the tension of real healthy skin, healing is not ideal. Therefore, in the prior art, the lifting type patch is placed in the fistula, the two ends of the lifting type patch are manually pulled by using a lifting line, but the mode consumes the physical strength and energy of an attendant very much, the nursing person is often pulled for several hours to tens of hours according to the actual condition of the fistula, the action of the attendant is rigid due to the difficult persistence and continuous keeping action, the lifting force is difficult to be adjusted slightly according to the healing condition, and the effective healing is not facilitated under the condition.

In the conventional recovery state aiming at the position of the patch, under the condition of manual lifting, on one hand, the patch is easy to be accidentally touched due to hand stiffness, shaking or other accidents, so that the recovery effect is not ideal. In addition, the position shift of the conventional patch is observed mainly by glasses of a person, is very difficult to be perceived, and is easily judged by mistake.

Disclosure of Invention

The invention aims to provide an auxiliary recovery device for an open intestinal fistula in an abdominal cavity and a using method thereof, which can quickly realize the adjustment of position, angle and force and solve the problem that a caregiver needs to manually pull a lifting wire in the prior art.

In order to achieve the purpose, the invention adopts the following scheme: a device for assisted recovery of an intestinal air fistula is proposed, comprising:

the bracket spans on the sickbed in an arch bridge shape;

at least one sliding assembly located on the bracket and configured to slide along an arch bridge defined by the bracket;

the wire lifter is connected to the lower end of the sliding assembly and synchronously moves along with the movement of the sliding assembly, and a wire capable of being automatically recovered is wound in the wire lifter;

the line hook is fixed on a line pulled out by the line lifter and is connected to one end of N lifting lines, the other end of the N lifting lines is connected to a patch arranged at the fistula, and N is a positive integer.

Preferably, the hook has at least three hook heads, each facing in a different direction, to facilitate uniform application of a lifting force to the patch.

Preferably, the support has a plurality of arcuate guide rails arranged in parallel. At least one slide assembly is configured to slide along the rail. The position of the sliding assembly on the guide rail can be conveniently adjusted, and the requirements of lifting different patches at different positions and angles can be met.

Preferably, a gap is left between two adjacent guide rails, so that a plurality of sliding assemblies can slide on the guide rails conveniently.

Preferably, the guide rail is arranged to be slidable in the longitudinal direction of the patient bed.

Preferably, each guide rail is sleeved with at least one sliding assembly, and the at least one sliding assembly is provided with a locking mechanism for locking the position of the sliding assembly.

Preferably, a plurality of sliding assemblies are arranged on each guide rail at preset positions along the arc-shaped circumferential direction, and the position of each sliding assembly is adjustable.

Preferably, at least one side surface of the guide rail is provided with a continuous guide groove, and the sliding assembly is arranged to slide along the guide groove and is guided and limited by the guide groove.

Preferably, the sliding assembly is provided with a sliding block or a pulley which is matched with the guide groove.

Preferably, the locking mechanism includes a tightening member disposed through a wall of the slide assembly to lock the slide assembly to the rail.

Preferably, the guide rail has an i-shaped cross-section.

Preferably, a plurality of sliding assemblies are arranged between two adjacent guide rails, wherein sliding grooves are arranged on the opposite surfaces of the two adjacent guide rails, and the sliding assemblies are movably supported in the sliding grooves of the two adjacent guide rails.

Preferably, the sliding assembly is provided with a bridge, a sliding block, a connecting piece, an adjusting frame and a hook below the sliding assembly, the sliding block is arranged inside a sliding groove of the guide rail, the bridge, the sliding block and the adjusting frame are fixed through the connecting piece, the bridge and the adjusting frame synchronously move on the guide rail along with the sliding block, and the hook is arranged on the adjusting frame and used for hanging the wire lifter.

Preferably, the adjusting frame is provided with an adjusting groove along the length direction of the sickbed, and the hook is arranged in the adjusting groove and can slide in the adjusting groove.

Preferably, the adjusting frame is an arc-shaped adjusting frame.

Preferably, the arc of the adjustment bracket is the same as the arc of the guide rail.

According to a second aspect of the invention, the device for assisted restoration of an intestinal air fistula is provided, which comprises the following steps:

determining one or more sliding assemblies adjacent to the patch location based on the patch location and size at the intestinal air stoma;

and a wire lifter is hung below one or more sliding assemblies, a wire hook below the wire is pulled out through the wire lifter, and the wire lifter connected with the stoma position patch is respectively fixed on the wire lifter towards different directions so as to keep the tension of the patch through the wire lifter.

Wherein the connecting line of the contact point of the lifting line and the fistula site patch is set to form a circle.

Preferably, the device for assisted recovery of an intestinal air fistula, during use, further comprises the steps of:

and adjusting the determined position of one or more sliding assemblies on the guide rail to form a staggered distribution.

According to a third aspect of the invention, the invention also provides a method for early warning of a device for assisted recovery of an intestinal air fistula, comprising the following steps:

step one, arranging at least one camera above a guide rail, enabling a lens of the camera to face a patch at an air fistula, and acquiring an image of the position of the patch through the at least one camera;

secondly, acquiring an image of the position of the patch as an initial image through at least one camera in an initial state after the patch at the air fistula is lifted by the thread lifting device through the lifting line, and calibrating a predetermined site in the initial image, wherein the predetermined site comprises a connecting point of the lifting line and the patch and a central point of the patch;

continuously acquiring images of the patch position through at least one camera;

registering images shot at different time points according to the preset positions and the initial image to obtain a difference image;

and fifthly, carrying out differential processing on the two difference pictures to obtain a gray level change difference value of the pixel point, and sending an early warning prompt to the monitoring terminal and/or the monitoring center in response to the gray level change difference value exceeding a set threshold value.

Preferably, the image registration is implemented by using a SIFT-based feature variation algorithm.

The invention has the beneficial effects that:

1. the auxiliary recovery device for the intestinal air fistula changes the situation that the skin relaxation force needs to be maintained by manual pulling in the traditional recovery process, reduces the energy consumption of accompanying personnel, and can realize the adjustment of the position, the angle and the force of a patch;

2. the device can realize lifting of patches at fistula openings in various forms by adjusting the positions of a plurality of sliding assemblies on a plurality of guide rails, provides omnibearing three-dimensional lifting, is more reasonable and uniform in stress especially for patches at different positions (side surfaces or inclined angles) of the upper abdomen and is beneficial to recovery continuity, and meanwhile, controls the lifting force of the patches by arranging a line lifter, and avoids intestinal ischemia caused by strong lifting;

3. the device is preset with a plurality of sliding assemblies at different positions, one or more sliding assemblies can be selected according to the position of the patch when in use, then the wire lifter is hung on the sliding assemblies, and the wire hook below the wire is pulled out through the wire lifter and is respectively fixed on the wire lifter connected with the patch at the fistula position in different directions, so that the tension of the patch is kept through the wire lifter, and the positioning and the adjustment are convenient;

4. the traditional position adjustment and position change of the patch need to be observed by naked eyes of people, and the slight change is difficult to be detected, and the change just reflects the change of recovery, so the time of treatment or post-treatment is easy to delay. The early warning method for the device is provided, the images shot at different time points are registered according to the preset positions and the initial images to obtain difference pictures, and the change difference of the difference pictures is analyzed to carry out early warning, so that the monitoring burden of personnel is further reduced, the patch is prevented from deviating, and further guarantee is provided for the recovery of the fistula.

Drawings

Fig. 1 is a schematic illustration of the use of the device for assisted restoration of an intestinal air fistula of the present invention;

fig. 2 is a perspective view of a first embodiment of the device for assisted restoration of an intestinal air fistula according to the present invention;

FIG. 3 is a top view of FIG. 2;

fig. 4 is a perspective view of the sliding assembly 3 in the first embodiment;

fig. 5 is a schematic view of the assembly of the sliding assembly 3 with the guide rail 21 in fig. 4;

fig. 6 is a schematic view of a second embodiment of the device for assisted restoration of an intestinal air fistula according to the invention;

fig. 7 is a perspective view of the sliding assembly 3 in the second embodiment;

fig. 8 is a schematic view of the assembly of the sliding assembly 3 of fig. 7 with the guide rail 21.

FIG. 9 is a schematic flow chart of the patch position warning of the present invention.

Reference numerals: the hospital bed comprises a hospital bed 1, a support 2, a sliding assembly 3, a wire lifter 4, a protective layer 5, a wire lifter 6, a wire hook 7, a guide rail 21, a tightening piece 31, a sliding seat frame 32, a pulley 33, a pulley shaft 34, a hook 35, a bridge 36, a sliding block 37, a connecting piece 38 and an adjusting frame 39.

Detailed Description

The following detailed description of embodiments of the invention refers to the accompanying drawings.

The device for assisting recovery of the intestinal air fistula by opening the abdominal cavity is used for assisting recovery of the intestinal air fistula by replacing the conventional manual lifting of a caregiver when the abdominal cavity is opened, and the patch placed at the fistula of the intestinal cavity is lifted by an adaptive and fine-adjustable mechanism, so that the tension of the skin near the fistula is maintained, meanwhile, the displacement of the patch can be prevented, and the recovery of the fistula position is promoted.

During the use, the support of accompanying and attending to personnel arch bridge shape is placed on the sick bed, adjusts the support and slides to fistula top position along the length direction of sick bed. The bracket has a plurality of rails that are positioned and angled by selecting and/or adjusting a plurality of slide assemblies on the rails. The line of connection in the line ware of carrying of slip subassembly lower extreme is pulled out, carries the line through the line hook connection, and the spooler is automatic to be tightened up after adjustment length and dynamics, and the patch is in the state of being carried and pulling that needs promptly, keeps certain dynamics, provides the support to the intestinal air fistula by the patch shutoff.

A device for assisted recovery of an intestinal air fistula as shown in fig. 1 comprises a stent 2, a sliding assembly 3 and a wire lifter 4. The bracket 2 is spanned on the sickbed 1 in an arch bridge shape, transversely cuts the length direction of the sickbed and is positioned above the human body lying on the sickbed.

At least one sliding component 3 is arranged on the bracket 2. The sliding assembly 3 is arranged to slide along an arch bridge defined by the support frame 2.

The wire lifter 4 is connected to a lower end of the sliding member 3 and moves synchronously with the movement of the sliding member 3.

The wire lifter 4 is wound with a wire which can be automatically recovered. Optionally, a wire hook 7 is fixed to the wire pulled out by the wire lifter 4. The wire hook 7 is provided to be connected to one end of the N lifting wires 6. The other ends of the N lifting wires 6 are connected to a patch 5 arranged at the fistula. Thus, the thread lifter 4 provides a tightening force for the thread lifter 6 to pull the patch, and since the skin at the stoma site is different from the normal skin, the proper tightening force for the patch is maintained by the device of the present invention, assisting and promoting stoma recovery.

Preferably, N is a positive integer, preferably 3, 4 or 5. The wire hook 7 has at least three hook heads, each facing in a different direction, for facilitating the uniform application of a lifting force to the patch.

As shown in fig. 2, the frame 2 has a plurality of arc-shaped guide rails 21, which span the patient bed. The plurality of guide rails 21 are arranged in parallel. At least one sliding assembly 3 is arranged to slide along the guide rail 21, so that the position of the sliding assembly 3 on the guide rail 21 can be adjusted conveniently, and the lifting requirements of different patches at different positions and angles can be met.

A gap is left between two adjacent guide rails 21, so that a plurality of sliding assemblies 3 can slide on the guide rails 21 conveniently.

In a further embodiment, the guide rail 21 is arranged slidable along the length of the patient bed 1. For example, the hospital bed 1 is provided with rails or grooves along the length direction. The bottom of the guide rail 21 is engaged with the slide groove and can slide along the rail or the groove.

Preferably, each guide rail 21 is sleeved with at least one sliding assembly 3. At least one sliding component 3 is provided with a locking mechanism for locking the position of the sliding component, so that the sliding component 3 can slide on the guide rail to realize position adjustment and can be locked and positioned at the corresponding position through the locking mechanism. When the position is required to be adjusted, the locking of the sliding assembly 3 is released through the locking mechanism.

Preferably, at least one side of the guide rail 21 is provided with a continuous guide groove. The sliding component 3 is arranged to slide along the guide groove and is guided and limited by the guide groove. And a sliding block or a pulley matched with the guide groove is arranged on the sliding component 3. Therefore, the sliding block or the pulley slides in the guide groove, and the limiting and guiding are carried out through two sides of the guide groove. Preferably, the size of the pulleys and the sliders is adapted to the guide grooves.

Preferably, the locking mechanism comprises a tightening member, such as a tightening bolt or screw, arranged through the wall of the sliding assembly 3 to screw-lock the sliding assembly 3 to the rail 21.

In one embodiment, as shown in fig. 2-5, the guide rail 21 is configured in a circular arc configuration.

The 4 guide rails 21 are uniformly distributed along the axial direction of the circular arc structure. A gap is left between two adjacent guide rails 21 to form a passage for the sliding assembly 3 to cross. Each guide rail 21 is sleeved with 4 sliding assemblies 3. The positions of the sliding assemblies 3 on the guide rail 21 are adjusted to meet the lifting requirements of different patches at different positions and angles.

In an alternative embodiment, the sliding assembly 3 comprises a tightening member 31, a carriage frame 32, a pulley 33, a pulley shaft 34 and a hook 35. The slide frame 32 is in a rectangular tube shape, and the rectangular tube-shaped opening is used for sleeving the slide assembly 3 on the slide rail 21. The top end of the carriage frame 32 is provided with a threaded through hole. Coaxial through holes are provided on both side surfaces of the carriage frame 32. The 2 pulley shafts 34 are respectively fixedly installed in the through holes. Inside the

carriage frame

32, 2 pulleys 33 are located, each fixedly mounted on a respective pulley axle 34.

The tightening member 31 is fixedly mounted in the threaded through hole to form a locking mechanism of the slide assembly 3.

The hook 35 is fixedly arranged at the bottom end of the slide carriage frame 32 and is used for hanging the wire lifter 4.

Preferably, the cross section of the guide rail 21 is i-shaped, and continuous guide grooves are arranged on two sides of the guide rail to position the sliding of the pulley 33. The slide module 3 can be fixed to the guide rail 21 by rotating the tightening member 31.

Preferably, in a further embodiment, at least one sliding assembly 3 is arranged between two adjacent guide rails 21. Wherein, a sliding groove is provided on the opposing face of the adjacent two guide rails 21. The slide module 3 is movably supported in the slide grooves of the adjacent two guide rails 21.

Further, as shown in fig. 6 to 8, another embodiment is shown, for example, in which 3 guide rails 21 are uniformly distributed along the axial direction of the circular arc structure. In the illustrated embodiment, the sliding assembly 3 is disposed between two adjacent guide rails 21.

Below the sliding assembly 3, a bridge 36, a sliding block 37, a connecting element 38 (for example a connecting column), an adjusting bracket 39 and a hook 35 are arranged. The slide block 37 is disposed inside the slide groove of the guide rail 21. The bridge 36, the sliding blocks 37 and the adjusting brackets 39 are fixed by the connecting pieces 38, so that the bridge 36 and the adjusting brackets 39 move synchronously with the sliding blocks 37 on the guide rails 21.

The hook 35 is arranged on the adjusting frame and used for hanging the wire lifter 4.

In an alternative embodiment, the adjustment bracket 39 and the bridge 36 are of a plate design.

In the preferred embodiment, the adjustment bracket 39 is provided with an adjustment slot along the length of the patient bed 1. The hook 35 is arranged in the adjusting groove and can slide in the adjusting groove, so that the wire lifter 4 can be placed at the most proper lifting position through fine adjustment of the hook 35 after the sliding assembly 3 is fixed on the guide rail 21.

Preferably, the adjustment bracket 39 is an arc-shaped adjustment bracket. The arc of the adjustment bracket 39 may be the same as the arc of the guide rail.

Preferably, the support is a stainless steel or aluminum alloy frame in order to achieve a light weight of the device and maintain a certain stability.

With reference to the device for assisted restoration of an intestinal air fistula of the illustrated and previously described embodiments, in use, one or more sliding assemblies are first determined adjacent to a patch location based on the patch location and size at the intestinal air fistula; and then a wire lifting device is hung below one or more sliding assemblies, a wire hook below the wire is pulled out through the wire lifting device, and the wire lifting device is respectively fixed on the wire connected with the fistula site patch towards different directions so as to maintain the tension of the patch through the wire lifting device. Wherein the connecting line of the contact point of the lifting line and the fistula site patch is set to form a circle.

Preferably, the device for assisted recovery of an intestinal air fistula, during use, further comprises the steps of: and adjusting the determined position of one or more sliding assemblies on the guide rail to form a staggered distribution.

In order to solve the problem that the position change of the existing patch, particularly the monitoring of local slight position change mainly depends on the observation of human eyes, so that misjudgment or delayed judgment is caused, on the basis of the invention, the invention also provides an early warning method for auxiliary recovery of the intestinal air fistula, wherein in the using process of the device, at least one camera is arranged above the guide rail, the lens of the camera faces the patch at the air fistula, and the image of the position of the patch is acquired by the at least one camera;

then, in an initial state that the thread lifting device lifts the patch at the air fistula through the lifting line, acquiring an image of the position of the patch as an initial image through the at least one camera, and calibrating a predetermined site in the initial image, wherein the predetermined site comprises a connecting point of the lifting line and the patch and a central point of the patch;

continuously acquiring images of patch positions by at least one camera;

registering images shot at different time points according to the predetermined position points and the initial image to obtain a difference image;

and carrying out differential processing on the two difference pictures to obtain a gray level change difference value of the pixel point, and sending an early warning prompt to a processing terminal and/or a monitoring center in response to the gray level change difference value exceeding a set threshold value. The processing terminal is especially a handheld terminal, such as an electronic device with data processing, storing and transmitting functions, such as a smart phone, a palm computer, a PDA, and the like.

Preferably, the camera may be a high-definition color camera or an infrared camera, and in particular, a network module, such as a Wifi or cellular network transmission module, is built in the camera and is used for accessing the monitoring network system, or transmitting the collected video to the monitoring network system through the internet.

The monitoring network system is provided with at least one storage module, a processor module and a network transmission module and is used for realizing the storage, processing and transceiving of data.

In some embodiments, at least one memory module is configured to store program modules for execution by the processor module and data for use, including but not limited to video data from the camera.

In connection with the process illustrated in FIG. 9, in an exemplary implementation, the processor module is configured to execute one or more sets of instructions stored in the program module to implement the process of:

carrying out frame processing on video data of a patch position acquired by a camera to obtain a frame image;

respectively carrying out registration processing on two frames of images with a set period interval T and an initial image P0 to obtain corresponding difference pictures P01 and P02;

carrying out differential processing on the difference pictures P01 and P02 to obtain the gray level change difference of the pixel points;

judging whether the gray change difference value exceeds a set threshold value, if so, judging that the corresponding key point (characteristic point) on the patch changes/positions, and sending an early warning prompt to a monitoring network system or a terminal of a corresponding person, such as a processing terminal or a mobile phone, especially preferably sending the patient information and the picture together as early warning information.

And if the gray change difference value does not exceed the set threshold value, judging that no change exists, and ending the process.

Preferably, the image registration process is implemented using a SIFT-based feature variation algorithm. In other embodiments, other registration algorithms, such as Surf-based feature point detection and matching, image grayscale statistics matching algorithms, may also be used.

Therefore, through the early warning processing of the invention, the change of the patch which needs to be observed by human eyes in the prior art, particularly the change of pressure or the deformation caused by the pressure change, is converted into the gray difference processing of the picture, and whether the pressure or the position on the patch is changed or not is determined through the gray difference processing, so that the accuracy of the early warning judgment efficiency is improved, and the defect that the prior art depends on human eye observation is avoided.

The present invention is not limited to the specific technical solutions described in the above embodiments, and other embodiments may be made in the present invention in addition to the above embodiments. It will be understood by those skilled in the art that various changes, substitutions of equivalents, and alterations can be made without departing from the spirit and scope of the invention.

Claims

1. A device for assisted recovery of an intestinal air fistula, comprising:

the bracket spans on the sickbed in an arch bridge shape;

a wire hook fixed on a wire pulled out by the wire lifter, the wire hook being configured to be connected to one ends of N lifting wires, the other ends of the N lifting wires being connected to patches provided to the stoma, wherein N is a positive integer;

wherein the bracket has a plurality of arc-shaped guide rails arranged in parallel therebetween, and the at least one sliding assembly is configured to slide along the guide rails.

2. The device for assisted restoration of an intestinal air fistula according to claim 1, wherein a gap is left between two adjacent guide rails.

3. The device for assisted restoration of an intestinal air fistula according to claim 1, wherein the guide rail is configured to slide along a length of the hospital bed.

4. The device for assisted restoration of an intestinal air fistula according to claim 1, wherein each guide rail is sleeved with at least one sliding assembly having a locking mechanism for locking its position.

5. The device for assisted restoration of an intestinal air fistula according to claim 4, wherein a plurality of sliding assemblies are provided on each guide rail at preset positions along the arc-shaped circumferential direction, and the position of each sliding assembly is adjustable.

6. The device for assisted restoration of an intestinal air fistula according to claim 5, wherein at least one side of the guide rail is provided with a continuous guide groove, and the sliding assembly is arranged to slide along and be guided and limited by the guide groove; and the sliding assembly is provided with a sliding block or a pulley matched with the guide groove.

7. The device for assisted restoration of an intestinal air fistula according to claim 5, wherein the locking mechanism comprises a tightening member disposed through a wall of the sliding assembly to tightly lock the sliding assembly to the guide rail.

8. The device for assisted restoration of an intestinal air fistula according to claim 2, wherein a plurality of sliding assemblies are disposed between two adjacent guide rails, wherein sliding grooves are disposed on opposite faces of the two adjacent guide rails, and the sliding assemblies are movably supported in the sliding grooves of the two adjacent guide rails.

9. The device for assisted recovery of an intestinal air fistula according to claim 8, wherein a bridge, a sliding block, a connecting piece, an adjusting frame and a hook are arranged below the sliding assembly, the sliding block is arranged inside a sliding groove of the guide rail, the bridge, the sliding block and the adjusting frame are fixed through the connecting piece, so that the bridge and the adjusting frame move synchronously on the guide rail along with the sliding block, and the hook is mounted on the adjusting frame and used for hanging the wire lifter.

10. The device for assisted recovery of an intestinal air fistula according to claim 9, wherein the adjusting frame is provided with an adjusting groove along the length direction of the sickbed, and the hook is arranged in the adjusting groove and can slide in the adjusting groove; the adjusting frame is an arc-shaped adjusting frame.