CN219250733U - Rest bed for patient traction of vertebral malformation bone - Google Patents

Abstract

The utility model relates to a rest bed for traction patients of vertebral malformation bones, which comprises a bed body, a bed head and bed legs, and is characterized in that an air cushion is paved on the upper surface of the bed body, and a plurality of groups of air bag units which are mutually independent and are arranged in a matrix are arranged on the air cushion; a safety placing plate is reserved on the air cushion, and a skull ring fixing placing groove and a pelvic bone ring fixing placing groove are respectively arranged in the safety placing plate; a shock-absorbing universal wheel is fixedly arranged below the bed legs; the advantages are as follows: the utility model has convenient operation and convenient use, can provide an auxiliary bed body capable of resting for the patient with the traction device for traction of the vertebra deformity bone, thereby reducing the problem that the patient is in tension state continuously during traction, keeps a posture for a long time and is easy to cause muscle strain; and simultaneously, the comfort of the patient in use is improved.

Description

Rest bed for patient traction of vertebral malformation bone

Technical Field

The utility model relates to the technical field of medical appliances, in particular to a rest bed for traction patients with vertebral malformation bones.

Background

Scoliosis deformity commonly called scoliosis is a three-dimensional deformity of the spine, and comprises sequence abnormality on coronal position, sagittal position and axial position; severe scoliosis can affect the daily life of a person, deform the body, affect the heart and lung functions, even affect the spinal cord, and even cause paralysis; when a patient with severe scoliosis is treated, a simple instrument operation is difficult to play, and the spinal tension is excessively large due to forced operation correction, so that paraplegia of the patient can be possibly caused, so that the patient needs to carry out chronic traction through a craniofacial traction device, and other spinal correction operations are carried out after the spinal column is gradually straightened, so that the safety of the operation is improved.

In the prior treatment process, a method is commonly adopted to fix rings at the skull and the pelvis of a patient (see figure 10 in the attached drawings of the specification), and support rods are added between the rings to achieve the chronic traction of the spine of a patient with weight scoliosis; when a patient wears the traction device to rest, a very thick sponge is often laid on a bed or the patient leans on a seat, so that the patient is inconvenient to rest; meanwhile, the traction is painful for the patient, the sleeping at night is often influenced, and the risk of skin infection around the steel nails is also caused; meanwhile, the body of a patient is in a tension state in the whole traction process, and the patient keeps a posture for a long time, so that muscle strain is easily caused. Therefore, on the premise of ensuring the traction supporting function of the pelvis structure, the patient can conveniently sleep when wearing the traction device.

Chinese patent application: CN208693555U discloses a medical multifunctional orthopedic traction table, which comprises a bed plate, wherein the left end of the upper side of the bed plate is provided with a movable bed plate, the right end of the movable bed plate is provided with a fixed bed plate, the movable bed plate is connected with the fixed bed plate through a rotating device, the right side of the fixed bed plate is provided with a traction bed plate, the lower end surface of the traction bed plate is arranged on the upper side of the bed plate through a sliding rail, the right end surface of the bed plate is provided with an operation table, a hydraulic cylinder is arranged between the operation table and the traction bed plate, the device combines cervical vertebra traction and leg traction, a patient can simultaneously carry out cervical vertebra and leg traction on the traction bed, the traction effect is good, the efficiency is high, the operation is convenient, the patient can lift the upper body in the long-time traction treatment process, the fatigue of the patient is effectively reduced, the patient is convenient to move, in addition, the patient is convenient to have a nursing bed, and the nursing staff has a rest without occupying the internal space of the ward; however, the device can only be used by some common traction patients, but cannot be used by patients with severe scoliosis.

Therefore, in view of the above, there is a need for a resting bed for a patient with a spinal deformity bone traction, which can meet the daily lying rest of a patient with severe scoliosis, and can massage the muscles at the back of the patient during a long-time lying process, thereby reducing muscle strain and pressure sores.

Disclosure of Invention

The present utility model aims to solve the problems presented above, and to provide a resting bed for a patient with spinal deformity bone traction.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the utility model provides a rest bed for vertebra deformity bone traction patient, includes bed body, head of a bed, foot, the upper surface of bed body has laid the air cushion, be provided with a plurality of groups respectively on the air cushion and be mutually independent and the gasbag unit of matrix arrangement, the gasbag unit constitute by a plurality of gasbag, be provided with the pneumatic valve on the gasbag, still be provided with control module in the inside of gasbag, control module still include mutual electric connection's controller, pressure sensor and time-recorder; each air bag is connected with an air inflation branch pipe, the air inflation branch pipes on the same group of air bag groups are connected with the same air inflation pipe, and the air inflation pipe is provided with an air source device; the air source device comprises a master controller and an air pump system; a safety placing plate is reserved on the air cushion, and a skull ring fixing placing groove and a pelvic bone ring fixing placing groove are respectively arranged in the safety placing plate; the lower part of the bed leg is also fixedly provided with a shock-absorbing universal wheel.

In the above-mentioned resting bed for traction patient of vertebra deformity bone, as a preferred scheme, the fixed standing groove of skull ring and the fixed standing groove of pelvic bone ring all are I-shaped structure, and it contains horizontal groove and vertical groove, just horizontal groove and vertical groove be vertical structure setting, and the degree of depth of horizontal groove is higher than the degree of depth of vertical groove.

In the resting bed for the patient with the traction of the vertebral malformation bone, as a preferable scheme, a traditional Chinese medicine placing pocket is further arranged on one side of the skull ring fixing placing groove and one side of the pelvic bone ring fixing placing groove, a plurality of ventilation holes are formed in the traditional Chinese medicine placing pocket, and a primary-secondary magic tape for controlling the opening and closing of the traditional Chinese medicine placing pocket is further arranged on one side of the traditional Chinese medicine placing pocket.

In the resting bed for the patient with the traction of the vertebral malformation, as a preferable scheme, the air bags on the air bag units are respectively independent and combined in a matrix mode.

In the resting bed for the patient with the traction of the vertebral malformation bone, as a preferable scheme, the master controller is electrically connected with the controllers in each air bag and is used for simultaneously controlling the inflation or deflation of a plurality of air bags.

In the resting bed for the patient with the traction of the vertebral malformation bone, as an preferable scheme, the resting bed further comprises a mute unit for eliminating noise in the use process of the medical air cushion bed, and the mute unit is electrically connected with the air source device.

In the above resting bed for traction patient of vertebra deformity bone, as an preferable scheme, the shock absorbing universal wheels are arranged at four corners of the bed leg, and pedal type braking devices are further arranged on the shock absorbing universal wheels, and the braking devices are provided with anti-skid patterns.

In the resting bed for the patient with the traction of the vertebral malformation, as a preferable scheme, the safe placing plate is detachably fixed on the air cushion.

The utility model has the advantages that:

1. the traction device is convenient to operate and use, and can provide an auxiliary tool capable of resting for a patient with the traction of the vertebra deformity bone wearing the traction device, so that the problem that the patient is in a tension state in the traction process and is easy to cause muscle strain because the patient keeps a posture for a long time is solved; and simultaneously, the comfort of the patient in use is improved.

2. The utility model realizes peristaltic massage on the specific part of the patient through the up-down peristaltic movement of the air bag unit, prevents the unsmooth blood circulation and the stiff muscle of the patient caused by long-time sickness and lying in bed, increases the treatment effect of the patient, prevents pressure sores, lightens the medical care burden and saves the medical care cost.

Drawings

Fig. 1 is a schematic view of a resting bed for a patient with spinal deformity bone traction according to the present utility model.

Fig. 2 is a partial schematic view of a resting bed for a patient with spinal deformity bone traction according to the present utility model.

Fig. 3 is a schematic view of a partial structure of the air cushion according to the present utility model.

Fig. 4 is a schematic view of a part of the structure of the air bag unit in the air cushion according to the present utility model.

Figure 5 is a schematic cross-sectional view of the overall controller of the present utility model in a different mode of the patient interface with the cushion.

Fig. 6 is a partial flow chart between a part of the elements on the cushion and the overall controller according to the utility model.

FIG. 7 is a schematic view of the shock absorbing universal wheel according to the present utility model.

Fig. 8 is a schematic view of the resting bed for a patient with spinal deformity bone traction described in example 2.

Fig. 9 is a schematic cross-sectional view of the sliding rail block and the sliding rail groove on the safety placement plate in embodiment 2.

Fig. 10 is a schematic view of a prior art partial structure for fixing the skull and pelvis of a patient with traction of a vertebral malformation.

Detailed Description

The utility model is further described below in conjunction with the detailed description. It is to be understood that these examples are illustrative of the present utility model and are not intended to limit the scope of the present utility model. Further, it is understood that various changes and modifications of the present utility model may be made by those skilled in the art after reading the description of the present utility model, and such equivalents are intended to fall within the scope of the claims appended hereto.

Reference numerals and components referred to in the drawings are as follows:

1. bed body	2. Head of bed	3. Bed leg
			4. Air cushion	5. Safe placing plate	6. Shock-absorbing universal wheel
83. Sliding rail block	41. Airbag unit	42. Air bag
			43. Air valve	44. Control module	45. Controller for controlling a power supply
46. Pressure sensor	47. Time-piece	48. Inflatable branch pipe
			49. Inflation tube	51. Skull ring fixing and placing groove	52. Basin bone ring fixing and placing groove
53. Transverse groove	54. Vertical groove	55. Pocket is placed to traditional chinese medicine
			56. Air vent	57. Primary and secondary magic tape	61. Shock-absorbing universal wheel
62. Braking device	63. Anti-skid pattern	70. Air source device
			71. General controller	72. Air pump system	73. Mute unit
81. Groove	82. Sliding rail groove

Example 1

Referring to fig. 1-7, fig. 1 is a schematic view of a resting bed for a patient with traction of a vertebra deformity bone according to the present utility model. Fig. 2 is a partial schematic view of a resting bed for a patient with spinal deformity bone traction according to the present utility model. Fig. 3 is a schematic view of a partial structure of the air cushion according to the present utility model. Fig. 4 is a schematic view of a part of the structure of the air bag unit in the air cushion according to the present utility model. Figure 5 is a schematic cross-sectional view of the overall controller of the present utility model in a different mode of the patient interface with the cushion. Fig. 6 is a partial flow chart between a part of the elements on the cushion and the overall controller according to the utility model. FIG. 7 is a schematic view of the shock absorbing universal wheel according to the present utility model.

The device mainly solves the problems that the body of a patient with the traction of the vertebra deformity bone is in a tension state in the traction process, and is kept in a posture for a long time, so that muscle strain is easily caused, and meanwhile, the corresponding wearing of the traction device can not carry out normal rest and the like; the device mainly comprises a bed body 1, a bed head 2 and bed legs 3, wherein an air cushion 4 is paved on the upper surface of the bed body 1, a plurality of groups of air bag units 41 which are respectively independent and are arranged in a matrix are arranged on the air cushion 4, each air bag unit 41 consists of a plurality of air bags 42, an air valve 43 is arranged on each air bag 42, a control module 44 is further arranged in each air bag 42, the control module 44 further comprises a controller 45, a pressure sensor 44 and a timer 47 which are electrically connected with each other, the pressure sensor 46 is used for measuring the pressure applied to the air cushion bed and transmitting the pressure to the controller 45, the controller 45 judges the numerical value read by the pressure sensor 46, and the timer 47 is started according to the read numerical value, so that the air valve 43 is inflated and deflated; each air bag 42 is connected with an air inflation branch pipe 48, the air inflation branch pipes on the same group of air bag groups are connected with the same air inflation pipe 49, and the air inflation pipe 49 is provided with an air source device 50; the air source device 70 comprises a total controller 71 and an air pump system 72; when the pressure sensor 44 on the air cushion bed body senses the pressure in the air bag and converts the pressure into a signal to be fed back to the controller 45, the overall controller 71 sends out an instruction according to a set program, and controls the air inlet and outlet of the air valve by controlling the opening and closing of the air valve 43, so that the air bag units at different matrix positions meet the pressure supporting requirement of a single site in the matrix, and the contact surface of the air cushion and a patient presents a specific supporting surface according to the requirement of the situation; preferably, the air bags on the air bag units are independent of each other and are combined in a matrix.

The specific control process is as follows: when the inflatable bag is inflated, according to the disease requirement, the pressure of the air bags arranged in a matrix is set as A by a program, the pressure sensor 44 at the time point T1 detects that the pressure of the air bags is A1, if the value read by the pressure sensor 46 is lower than the pressure set value A, a timer is started, if the time recorded by the timer 47 exceeds the time set value T1, the controller 45 starts an air valve, and the inflatable bag is inflated and pressurized until the pressure in the air bags is higher than the pressure set value A; when deflating: according to the disease requirement, the program sets the pressure of the air bags arranged in a matrix as P, the pressure sensor 44 detects the pressure of the air bags as P2 at the time point T1, if P2 is more than P, the pressure sensor converts the sensed pressure P2 into an electric signal and feeds the electric signal back to the main controller 71, the main controller 71 gives an air valve according to the set program, the air valve is controlled to be opened, the air bag unit is deflated, when the pressure in the air bag unit reaches P, the air outlet valve is closed, the air bag unit stops deflating, and the time point is T2.

Referring to fig. 4, in this embodiment, it is preferable that the air bags 42 on the air bag unit 41 are respectively independent and arranged in a transverse direction, and the plurality of air bags 42 are combined in a matrix, and the shape of the air bag 42 may be an elliptical or rectangular structure. And the inflation branch pipe 48 controls each individual air bag 42, so that the air bags can be made to have different heights, and the air bags can be adjusted in proper height according to different pressure values, and the specific operation is as follows: because different air bag sites, different pressure requirements and different time points are combined to form different modes of the contact surface of different patients, as shown in modes 1, 2, 3 and 4 in fig. 5, the modes 1 and 2 show that the air cushion bed body presses the contact surface of the patient at different time points or prevents bedsores through different contact surfaces; mode 3 (when bedsores occur) indicates that the bedsore part is emptied, and the bedsore part of the patient is not stressed, so that the treatment purpose is achieved; mode 4 illustrates adjusting the optimal contact surface as needed according to the patient's position and size of the bedsores, so that the patient can be properly supported while lying in bed for a long time. The matrix combination of the air bag units 41 can also set a plurality of different treatment modes according to specific use conditions, each mode can be defined at a site, pressure and a time point according to the needs of a patient, so that the contact surface of a mattress and the patient presents different contact surfaces at different times, peristaltic massage can be carried out on a specific part of the patient through the up-and-down peristaltic movement of the air bag units at specific time (such as before sleeping at night), the unsmooth blood circulation of the patient caused by long-time sickness and lying in bed is prevented, the treatment effect of the patient is improved, pressure sores are prevented and treated, the medical burden is lightened, and the medical cost is saved.

In this embodiment, the overall controller 71 is preferably electrically connected to the controller 45 in each air bag 42, so as to control the inflation or deflation of a plurality of air bags 42 at the same time. The master controller 71 can control the air pressure in the air bags at different matrix positions at fixed time and fixed pressure according to a set program, and control the air pressure in the air pump system, so that the air cushion bed presents a specific supporting surface at a specific time point, and the beating massage of the cervical vertebra part, the lumbar vertebra part, the legs, the wrist joints and other different states of the patient is carried out according to the illness state, thereby reducing the occurrence of muscle stiffness of the patient and improving the comfort of the patient during use.

In this example, it is preferable to further include a silencing unit 73 for eliminating noise during use of the medical air cushion bed, and the silencing unit 73 is electrically connected to the air source device 70. The mute unit 73 in the device can reduce the noise in the use process of the air cushion bed body, so that the user feel more comfortable; the mute unit is electrically connected with the air source device, and the mute unit can be started simultaneously when the main controller and the air pump system are started, so that the use is more convenient.

A safe placing plate 5 is reserved on the air cushion 4, and the safe placing plate 5 is also provided with a skull ring fixing placing groove 51 and a pelvic bone ring fixing placing groove 52; preferably, the skull ring fixing and placing groove 51 and the pelvic bone ring fixing and placing groove 52 are both in an I-shaped structure and comprise a transverse groove 53 and a vertical groove 54, the transverse groove 53 and the vertical groove 54 are arranged in a vertical structure, and the depth of the transverse groove is higher than that of the vertical groove; when a patient lies on the bed body, the skull fixing rings fixed on the skull can be placed in the corresponding skull ring fixing placing grooves, and the depth of the transverse grooves can meet the use of the skull bottom fixing rings of the patient because the skull fixing rings are much higher than the fixing rings on the two sides of the skull, so that the patient with the head fixing rings can be fixed in the skull ring fixing placing grooves; the corresponding basin bone ring fixing and placing groove can also be used for placing the basin bone fixing ring fixed at the basin bone position of the patient in the same way; the setting of the device can be convenient for assisting a patient to lie on the bed body for rest, reduces the interference pain of the skull fixing ring and the pelvic bone fixing ring on the skull and the pelvic bone of the patient, improves the comfort of scoliosis deformity patients, and utilizes the patients to fall asleep.

In this embodiment, preferably, a traditional Chinese medicine placing pocket 55 is further provided on one side of the skull ring fixing and placing slot 51 and the pelvic bone ring fixing and placing slot 52, a plurality of ventilation holes 56 are provided on the traditional Chinese medicine placing pocket 55, and a primary-secondary magic tape 57 for controlling the opening and closing of the traditional Chinese medicine placing pocket is further provided on one side of the traditional Chinese medicine placing pocket 55; the traditional Chinese medicine placing pocket 55 can be used for placing traditional Chinese medicine dressing for relieving the vertebra pain of a patient and assisting in treatment, so that the treatment of the patient is assisted, and the pain of the patient is relieved; the medical device can be opened and closed through the primary-secondary magic tape in the use process, and the air holes are utilized to leak out medical air; the traditional Chinese medicine placement bag can be correspondingly placed at the positions of the neck and the lumbar vertebra of the patient, and targeted treatment assistance can be further realized.

The lower part of the bed leg 3 is fixedly provided with a shock-absorbing universal wheel 6, preferably the shock-absorbing universal wheel 61 is arranged at four corners of the bed leg 2, the shock-absorbing universal wheel 61 is further provided with a pedal type braking device 62, and the braking device 62 can be convenient for medical staff to operate and accords with the principle of saving force, and is convenient to fix and move; simultaneously the arresting gear on still be provided with anti-skidding line 63, just the setting of anti-skidding line 63 can increase medical personnel foot and arresting gear's area of contact, prevents to take place to sideslip when trampling, causes unnecessary harm, has increased the stability and the security of device.

The application method of the air cushion comprises the following steps: in the use process, a patient lies on the bed body, and the corresponding skull fixing ring and the corresponding pelvic bone fixing ring are placed in the corresponding skull ring fixing placing groove and the corresponding pelvic bone ring fixing placing groove; then when the patient needs to realize the massage effect, medical staff sets an instruction on the master controller, the master controller sends a control signal, the air pump system and the mute unit are started simultaneously, a plurality of air bags on a plurality of air bag units are inflated and exhausted at intervals, a time interval is set, the master controller can control the air bags to slowly and uniformly exhaust and inflate from left to right, and the air pump system stops inflating or exhausting after the preset time is reached; meanwhile, the inflation and air extraction degree of each cavity can be controlled so as to realize massage with different amplitudes; because each air bag is respectively connected with an inflatable branch pipe, the pressure position of the air bag can be independently and better controlled, so that a patient can lie on the air cushion bed stably, unnecessary injury to the patient caused by overlarge pressure in the massage process is avoided, and the use safety of the patient is improved.

It should be noted that: the utility model has convenient operation and simple use, and can realize the rest and sleep of the patient with the spinal deformity after or before the operation; meanwhile, the air bag device can also collect the pressure born by each air bag of the bed in real time, integrate and analyze the data, deflate and release the pressure of the air bags which bear excessive weight and exceed a certain period of time, inflate and pressurize the air bags which bear excessive weight and exceed a certain period of time, prevent the uneven distribution of the weight of the body part, and effectively and fundamentally prevent the generation of pressure sores; the matrix combination of the air bag units can set a plurality of different treatment modes according to specific use conditions, each mode can be defined at a site, pressure and a time point according to the needs of a patient, so that the contact surface of a mattress and the patient presents different contact surfaces at different times, peristaltic massage can be carried out on a specific part of the patient through the up-down peristaltic movement of the air bag units at specific time (such as before sleeping at night), the patient is prevented from being unsmooth in blood circulation and stiff in muscles caused by long-time sickness and lying in bed, the treatment effect of the patient is improved, pressure sores are prevented, the medical care burden is lightened, and the medical cost is saved; each air bag is controlled by an independent air inflation branch pipe, so that the air pressure of each part of the air cushion bed can be flexibly regulated, the effects of keeping blood circulation in the body of a patient and preventing bedsores are achieved, and meanwhile, the comfort of the patient is improved; the air bag device in the device is referred to a novel air cushion bed for rehabilitation and bedsore prevention and treatment in the patent publication No. CN207323638U, and the pneumatic principle of the air cushion device can be referred to the patent.

Example 2

Referring to fig. 8 and 9, fig. 8 is a schematic view of a resting bed for a patient with vertebra deformity bone traction according to embodiment 2. Fig. 9 is a schematic cross-sectional view of the sliding rail block and the sliding rail groove on the safety placement plate in embodiment 2.

The rest bed in this embodiment is basically the same as the rest bed for the patient with the traction of the vertebra deformity bone in embodiment 1, and is different in that the safety placement plate 5 is detachably fixed on the air cushion, specifically, a groove 81 is provided on the air cushion corresponding to the safety placement plate, a sliding rail groove 82 is provided in the groove 81, a sliding rail block 83 matching the sliding rail groove is correspondingly provided at the bottom of the safety placement plate 5, and the safety placement plate is slidably mounted on the sliding rail groove 81 in the air cushion groove; the setting can be used for replacing the corresponding size of the safe placement plate according to the height requirements of different patients, and moving appropriately; for example, a patient with a shorter/taller human body can relatively move the safe placement plate at the skull and the pelvis so as to meet the clinical use of different patients.

The foregoing is merely a preferred embodiment of the present utility model and it should be noted that modifications and additions to the present utility model may be made by those skilled in the art without departing from the principles of the present utility model and such modifications and additions are to be considered as well as within the scope of the present utility model.

Claims (8)

1. The resting bed for traction patient of vertebra deformity bone comprises a bed body, a bed head and bed legs, and is characterized in that an air cushion is paved on the upper surface of the bed body, a plurality of groups of mutually independent air bag units which are arranged in a matrix form are arranged on the air cushion, each air bag unit consists of a plurality of air bags, an air valve is arranged on each air bag, a control module is further arranged in each air bag, and the control module further comprises a controller, a pressure sensor and a timer which are electrically connected with each other; each air bag is connected with an air inflation branch pipe, the air inflation branch pipes on the same group of air bag groups are connected with the same air inflation pipe, and the air inflation pipe is provided with an air source device; the air source device comprises a master controller and an air pump system; a safety placing plate is reserved on the air cushion, and a skull ring fixing placing groove and a pelvic bone ring fixing placing groove are respectively arranged in the safety placing plate; the lower part of the bed leg is also fixedly provided with a shock-absorbing universal wheel.

2. The resting bed for traction patient of vertebral malformation according to claim 1, wherein the skull ring fixed placement groove and the pelvic bone ring fixed placement groove are both in an i-shaped structure and comprise a transverse groove and a vertical groove, the transverse groove and the vertical groove are arranged in a vertical structure, and the depth of the transverse groove is higher than that of the vertical groove.

3. The resting bed for traction patient of vertebra deformity bone according to claim 1, wherein one side of the skull ring fixing and placing groove and one side of the pelvis ring fixing and placing groove are further provided with a traditional Chinese medicine placing pocket, a plurality of ventilation holes are formed in the traditional Chinese medicine placing pocket, and one side of the traditional Chinese medicine placing pocket is further provided with a primary-secondary magic tape for controlling opening and closing of the traditional Chinese medicine placing pocket.

4. The rest bed for traction patients of vertebral malformation according to claim 1, wherein the air bags on the air bag unit are independent of each other and are combined in a matrix.

5. The resting bed for a patient with spinal deformity bone traction according to claim 1, wherein said master controller is electrically connected to a controller in each balloon for controlling inflation or deflation of a plurality of balloons simultaneously.

6. The resting bed for a patient with spinal deformity bone traction according to claim 1, further comprising a silencing unit for eliminating noise during use of the medical air mattress, said silencing unit being electrically connected to the air supply device.

7. The rest bed for traction patient of vertebra deformity bone according to claim 1, wherein the shock absorbing universal wheels are arranged at four corners of the bed leg, and pedal type braking devices are further arranged on the shock absorbing universal wheels, and the braking devices are provided with anti-skid patterns.

8. The resting bed for traction patient of vertebral malformation according to any one of claims 1-7, wherein said safety placement plate is removably secured to said air cushion.

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