CN113384421A

CN113384421A - Gastroscope diagnosis and treatment side-lying bed with controllable violent stress head swinging motion

Info

Publication number: CN113384421A
Application number: CN202110746675.0A
Authority: CN
Inventors: 张腊梅; 刘晓敏; 蒋珍
Original assignee: First Affiliated Hospital of Henan University of Science and Technology
Current assignee: First Affiliated Hospital of Henan University of Science and Technology
Priority date: 2021-07-02
Filing date: 2021-07-02
Publication date: 2021-09-14
Anticipated expiration: 2041-07-02
Also published as: CN113384421B

Abstract

A gastroscope diagnosis and treatment side bed with controllable violent stress head swinging action comprises a bed body for supporting the trunk of a patient and a pillow body for supporting the head of the patient, wherein the pillow body is provided with a bandage for fixing the head of the patient and is connected to the bed body through a two-degree-of-freedom connecting device, the two-degree-of-freedom connecting device comprises a sliding part longitudinally inserted on the bed body along the bed body and a rotating part rotatably arranged on the sliding part, the pillow body is fixed on the rotating part so that the head of the patient can flexibly swing under the matching of a sliding pair between the sliding part and the bed body and a rotating pair between the rotating part and the sliding part, the two-degree-of-freedom connecting device also comprises a locking mechanism arranged at the position of the rotating pair between the rotating part and the sliding part, the locking mechanism is used for locking the rotating matching of the rotating part and the sliding part when the patient generates violent stress head swinging action so as to avoid violent swinging of the head of the patient, avoiding the danger caused by violent stress head swinging action.

Description

Gastroscope diagnosis and treatment side-lying bed with controllable violent stress head swinging motion

Technical Field

The invention relates to the field of endoscopic internal medicine, in particular to a gastroscope diagnosis and treatment side bed with controllable violent stress head swinging motion.

Background

Gastroscopes are a method of medical examination and also refer to instruments used in such examinations. It is inserted into the stomach by means of a thin and flexible tube, and the doctor can directly observe the pathological changes of esophagus, stomach and duodenum, especially for tiny pathological changes. The gastroscopy can directly observe the real condition of the detected part, and can further carry out pathological biopsy and cytology detection on the suspicious lesion part to further clearly diagnose, thereby being the preferred detection method for the upper digestive tract lesion.

The gastroscope diagnosis and treatment is usually carried out in a left-side lying posture of a patient, the gastroscope continuously generates stimulation after entering the digestive tract, and the diagnosis and treatment time is usually varied from several minutes to dozens of minutes according to different positions. In the process of diagnosis and treatment for lateral lying of a patient, the stimulation effect of the gastroscope on the digestive tract continuously generates not only stimulation to the digestive tract of the patient to generate mucus to be discharged from the mouth to pollute a bed, but also stress reaction of the patient due to stimulation to generate uncontrolled head violent swinging motion of the patient. Such severe stress head swinging action may cause the gastroscope to shift, resulting in unsmooth breathing of the patient to cause an unexpected medical accident. In order to avoid the violent swinging of the head of the patient, the head of the patient is fixed through a flexible belt such as a binding belt after the patient lies on the side, and then a gastroscope is inserted for diagnosis and treatment. Although the risk of the patient caused by severe stress swing reaction can be avoided by the aid of the measures, the head of the patient cannot swing for a long time in the diagnosis and treatment process, the body is tense due to physical fatigue, the neck and even the muscles of the whole body are stiff, the patient is not easy to relax, the stress reaction is easy to further generate, and the diagnosis experience is extremely poor.

Disclosure of Invention

The invention aims to provide a gastroscope diagnosis and treatment side bed with controllable violent stress head swinging action, so that the head swinging action of a patient is controllable, and the danger caused by the violent stress head swinging action is avoided.

In order to solve the technical problems, the invention adopts the specific scheme that: a gastroscope diagnosis and treatment side bed with controllable violent stress head swinging action comprises a bed body for supporting the trunk of a patient and a pillow body for supporting the head of the patient, wherein the pillow body is provided with a bandage for fixing the head of the patient, the pillow body is connected to the bed body through a two-degree-of-freedom connecting device, the two-degree-of-freedom connecting device comprises a sliding part which is inserted on the bed body in a longitudinal sliding mode along the bed body and a rotating part which is rotatably arranged on the sliding part, the pillow body is fixed on the rotating part, so that the head of the patient can swing flexibly under the matching of a sliding pair between the sliding piece and the bed body and a rotating pair between the rotating piece and the sliding piece, the two-degree-of-freedom connecting device further comprises a locking mechanism arranged at the position of the rotating pair between the rotating piece and the sliding piece, and the locking mechanism is used for locking the rotating piece and the sliding piece to be in rotating matching when the patient generates violent stress swing head action so as to avoid violent swing of the head of the patient.

Preferably, the locking mechanism has an activation switch for self-sustaining use by the patient.

Preferably, the revolute pair comprises a sleeve fixed on the sliding part and a rotating shaft fixed on the rotating part and rotationally matched with the sleeve, the locking mechanism comprises a slot arranged on the rotating shaft along the circumferential direction and an insertion block arranged in the sleeve in a sliding manner along the radial direction, the insertion block is made of a magnetic material, a first radial hole for the insertion block to be slidably matched with the insertion block is formed in the inner wall of the sleeve, an electromagnet used for sucking the insertion block into the first radial hole and a first spring used for ejecting the insertion block to be in splicing fit with the slot after the electromagnet is powered off are arranged in the first radial hole, the starting switch is a spring switch, the starting switch maintains the power-on state of the electromagnet in a natural state, and the electromagnet is controlled to be powered off in a pressing triggering state.

Preferably, the starting switch comprises two arc reeds, the end parts of the two arc reeds are connected to form a shuttle-shaped structure, a sleeve is arranged in the middle of one of the arc reeds, a conducting ring connected with a power supply line of the electromagnet is fixedly arranged in the sleeve, a sliding column in sliding splicing fit in the sleeve is arranged in the middle of the other arc reed, a conducting contact connected with the power supply line of the electromagnet is arranged on the sliding column, the conducting contact is in contact with the conducting ring and enables the electromagnet to be electrified under the natural state of the two arc reeds, and an insulating sleeve for extending out a conducting wire connected with the conducting ring and the conducting contact ball is arranged at the end part of the starting switch.

Preferably, the sliding column is provided with a limiting shoulder, and the limiting shoulder is matched with the end part of the sleeve to form a limiting fit for limiting the insertion depth of the sliding column into the sleeve.

Preferably, the revolute pair comprises a sleeve fixed on the sliding part and a rotary shaft fixed on the rotary part and rotationally matched with the sleeve, the locking mechanism comprises slots arranged on the inner wall of the sleeve along the circumferential direction and a plurality of insertion blocks arranged on the rotary shaft along the radial direction, the rotary shaft is provided with a cavity, a guide post distributed along the length direction of the rotary shaft and a sliding ring arranged on the guide post in a sliding manner are fixedly arranged in the cavity, the sliding ring is provided with a plurality of pull rods and starting ropes, the pull rods are distributed at intervals along the circumferential direction of the sliding ring, the pull rods correspond to the insertion blocks one by one, two ends of the pull rods are respectively hinged with the sliding ring and the corresponding insertion blocks, a second spring is sleeved on the guide post, two ends of the second spring are respectively connected with the guide post and the sliding ring, the second spring is used for maintaining the position of the sliding ring and the separation state of the insertion blocks and the slots under the self natural extension state, and the starting rope penetrates out of the rotary shaft and then is connected with the starting switch, the starting switch pulls the starting rope to drive the slip ring to slide and enable the insertion block to be inserted into the insertion slot; the starting switch comprises a pipe body for holding a patient, one end of the pipe body is sealed, the other end of the pipe body is open, a pressing handle is sleeved at the position of the open end of the pipe body in a sliding mode, the end portion, located outside the pipe body, of the pressing handle forms a pressing operation portion, a first pulley is arranged at the end portion, located inside the pipe body, of the pressing handle, a second pulley is fixedly arranged in the pipe body, the starting rope stretches into the pipe body from the closed end of the pipe body and sequentially winds around the second pulley and the first pulley to be fixed onto the pipe body, and a spool is further sleeved on the periphery of the part, located between the rotating shaft and the pipe body, of the starting rope.

Preferably, the revolute pair comprises a sleeve fixed on the sliding part and a rotating shaft fixed on the rotating part and rotationally matched with the sleeve, the locking mechanism comprises a rotary table and a clamping shell, the rotary table is rotationally arranged on the sliding part and is in transmission connection with the rotating shaft through a speed increasing assembly, an inserting block which can be partially separated from the rotary table is arranged on the periphery of the rotary table, the clamping shell is fixed on the sliding part and is sleeved on the periphery of the rotary table, and an inserting groove for the inserting block to be inserted and matched is formed in the clamping shell;

the speed increasing assembly is used for increasing the rotating speed of the rotary table after the patient violently stresses the swinging head to drive the rotating piece and the rotating shaft to rotate, enabling the inserting block on the rotary table to be separated from the upper part of the rotary table under the action of centrifugal force and inserted into the slot, and locking the rotation of the rotary table through the matching of the inserting block and the slot so as to lock the rotation of the rotating shaft; the speed increasing assembly comprises a first-stage speed increasing gear arranged on the rotating shaft, a middle shaft arranged on the sliding piece in a rotating mode, a second-stage speed increasing gear arranged on the middle shaft, and a rotary disc, wherein the second-stage speed increasing gear is meshed with the first-stage speed increasing gear, and the wheel diameters of the first-stage speed increasing gear and the rotary disc are larger than those of the second-stage speed increasing gear.

Preferably, the insert block is installed in a second radial hole formed in the outer edge of the turntable in a sliding fit mode, and a third spring used for maintaining the separation state of the insert block and the slot is further arranged in the second radial hole.

Preferably, the inserted block is rectangular form, and the one end hinge of inserted block is on the carousel, and the other end is equipped with slot joint complex protruding cooperation piece, and protruding cooperation piece all has the fan-shaped of wedge portion for both sides, and the slot is the rectangular form that distributes along the circumference of card shell, and the both ends of slot are the wedge that corresponds with the wedge portion on the protruding cooperation piece, still is equipped with the fourth spring that is used for maintaining protruding cooperation piece and slot detached state between the tip that is equipped with protruding cooperation piece on the inserted block and the carousel.

The diagnosis and treatment side-lying bed for side lying of a patient has a bed body and a pillow body which can move relatively, and the pillow body is connected to the bed body through a two-degree-of-freedom connecting device. After the head of a patient is fixed on the pillow body through the binding band, under the matching action of the sliding pair and the rotating pair in the two-degree-of-freedom connecting device, the head of the patient can independently swing in any range and at any point as a rotating center, so that the situation that the body and mind of the patient can reach a more relaxed state due to the fact that the head is fixed passively for a long time is avoided, smooth gastroscope diagnosis and treatment is facilitated, and unnecessary stress reaction caused by muscle stiffness or tension is avoided.

The position of a revolute pair of the two-degree-of-freedom connecting device is provided with a locking mechanism, and the locking mechanism is used for limiting the rotation between the rotating piece and the sliding piece, namely the pillow body is forcibly fixed, so that the head position of the patient is fixed, and the swinging is avoided. The locking mechanism can be automatically triggered by the initial stage of the violent stress head swinging action of the patient, so that the complete generation of the violent stress head swinging action is avoided, and the risk caused by the violent stress head swinging action is further avoided. The locking mechanism of the present invention may also be autonomously and selectively triggered by a patient-self-contained activation switch. In the triggering mode, the starting switch is in a spring type and locks the revolute pair only in a triggering state, on one hand, a patient can lock the revolute pair in advance according to a precursor generated by self severe stress reaction, and the generation of severe stress head swinging action is completely avoided; on the other hand, even if severe stress reaction is generated under the condition of no precursor, the locking state of the revolute pair can be triggered and maintained by utilizing the rigid reaction of the patient gripping the hand part in the severe stress reaction, and the phenomenon that the patient mistakenly opens the revolute pair before the stress reaction generated by the gastroscope stimulation is finished can be avoided. The effects of the two aspects are safe and effective and are well matched with the self reaction of the patient, and the patient can control the starting switch by combining the self reaction characteristic through simple training, so that the patient can be fully and autonomously controlled in the gastroscope diagnosis and treatment, the physical and mental relaxation of the patient is further facilitated, and the generation of unnecessary severe stress reaction caused by tension and stiffness is avoided as much as possible.

Drawings

FIG. 1 is a schematic structural view of example 1 of the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

fig. 3 is a schematic structural view of a start switch portion in embodiment 1 of the present invention;

FIG. 4 is a schematic structural view of example 2 of the present invention;

FIG. 5 is an enlarged partial view of portion B of FIG. 4;

fig. 6 is a schematic structural view of a start switch portion in embodiment 2 of the present invention;

FIG. 7 is a schematic structural view of example 3 of the present invention;

FIG. 8 is a cross-sectional view taken along line C-C in FIG. 7 of the first embodiment of example 3;

FIG. 9 is a cross-sectional view taken along line C-C in FIG. 7 of the second embodiment of example 3;

the labels in the figure are: 1. a wire rail, 2, a bed body, 3, a binding band, 4, a pillow body, 5, a locking mechanism, 501, a first spring, 502, an electromagnet, 503, a first radial hole, 504, an insert block, 505, a slot, 506, a power supply, 507, a conducting wire, 508, an arc reed, 509, a conducting ring, 510, a conducting contact, 511, a sleeve, 512, a sliding column, 513, an insulating sleeve, 514, a wire tube, 515, a starting rope, 516, a second spring, 517, a guide column, 518, a sliding ring, 519, a pull rod, 520, a second pulley, 521, a pipe body, 522, a first pulley, 523, a press handle, 524, a clamping shell, 525, a primary gear, 526, a rotating disc, 527, an intermediate shaft, 528, a secondary speed-increasing gear, 529, a protruding matching block, 530, a fourth spring, 531, a third spring, 532, a sliding rod, 533, a second radial hole, 534, a limiting shoulder, 6, a two-degree-of-freedom connecting device, 601 and a sleeve, 602. rotating shaft, 603, rotating piece, 604, sliding piece, 605, thrust bearing, 606, cavity.

Detailed Description

As shown in figures 1, 2, 4, 5 and 7, the gastroscope diagnosis and treatment side lying bed with controllable violent stress head swinging action is used for a patient to lie in a side lying posture, and has a main structure of a horizontal bed body 2 and a pillow body 4 movably connected to the bed body 2. The bed body 2 is used for bearing the position of the trunk of a patient, and the pillow body 4 is used for bearing the head of the patient. The bed body 2 and the pillow body 4 are both provided with soft cushions, and the height of the pillow body 4 is slightly higher than that of the bed body 2, so that the comfort level of the lateral lying state of the patient is improved as much as possible. Two flexible binding bands 3 are arranged on the pillow body 4 at intervals, one flexible binding band corresponds to the lower jaw of a patient, the other flexible binding band corresponds to the forehead of the patient, and after the patient lies on the side, the head of the patient is fixed on the pillow body 4 through the two binding bands 3, so that preparation is made for controlling the violent stress head swinging action of the patient in gastroscope diagnosis and treatment.

In order to ensure that the head of a patient can be properly moved under the non-stress reaction state in gastroscope diagnosis and treatment to achieve the effect of relaxing and resting, the pillow body 4 is connected on the bed body 2 through a two-degree-of-freedom connecting device 6. The two-degree-of-freedom connecting device 6 includes a sliding member 604 and a rotating member 603. The slider 604 is a rigid, long, strip-shaped plate made of stainless steel. The left end of the movable piece is inserted into a rectangular hole which is arranged on the right side of the bed body 2 and distributed along the horizontal direction, and linear rails 1 which are in sliding fit with the two sides of the sliding piece 604 are respectively arranged on the two sides of the rectangular hole. A sliding pair is formed between the linear rail 1 and the side part of the sliding part 604, and the rail surface of the linear rail 1 and the surface of the side part of the sliding part 604 are smooth, so that the sliding part 604 can flexibly slide along the horizontal direction under the action of external force driving. The rotating member 603 is a vertically distributed rigid cylinder that is hollow to reduce its weight. The upper side of the rotating part 603 is fixedly connected with the bottom of the pillow body 4, the lower part is concentrically and fixedly provided with a rotating shaft 602, the right end of the sliding pair is provided with a hole, a sleeve 601 for the rotating shaft 602 to rotatably match is arranged in the hole, and the sleeve 601 and the rotating shaft 602 form a rotating pair for the rotating part 603 to rotate relative to the sliding part 604. The shaft 602 has upper and lower spaced shoulders, which are rotatably engaged with the sleeve 601 by a pair of thrust bearings 605, thereby ensuring the flexibility of rotation and preventing the shaft 602 from moving vertically under the compression of the patient's head. The sleeve 601 is assembled in the opening at the right end of the sliding part 604 in a slight interference fit mode through a key groove structure, the sleeve 601 is prevented from rotating, the rotating part 603 and the pillow body 4 on the rotating part 603 are replaced in time after diagnosis and treatment of a patient are finished, and secretion flowing out of the mouth of the patient is prevented from being reserved at the positions of the pillow body 4, the rotating part 603 and the like in diagnosis and treatment of the gastroscope. The secretion possibly remained on the sliding member 604 or the bed body 2 can be easily cleaned and timely wiped off and disinfected by medical rag.

The sliding pair and the rotating pair form two degrees of freedom. After the patient lies on his side and the head is fixed by the strap 3, the head of the patient can be automatically extended and contracted by the extension and contraction of the slider 604, and the head can be automatically swung in the front-rear direction by the rotation of the rotating member 603. The combination of the two can independently carry out the swing of any amplitude and taking any point as the rotation center even the head of the patient, thereby avoiding the head from being rigid due to the long-time passive fixation, further leading the patient to reach the state similar to the state of the unfixed bandage 3, leading the body and mind to be more relaxed, being beneficial to the smooth operation of gastroscope diagnosis and treatment and avoiding the generation of unnecessary stress reaction caused by the rigid or tense muscle.

In order to achieve the purpose of controlling the violent stress head swinging action of the patient, the invention is provided with a locking mechanism 5 at the position of the revolute pair. The locking mechanism 5 is used to lock the rotation of the rotating member 603 and the sliding member 604 when the patient produces a severe head swing action, so as to prevent the patient's head from swinging violently. When the locking mechanism 5 acts, although the sliding pair is not locked, the sliding piece 604 can still slide along the length direction of the bed body 2, but the neck stretching amount of the human body is small and not violent, which is not enough to cause the gastroscope to shift by the neck stretching alone, so the invention only limits the rotation of the rotating pair through the locking mechanism 5 to achieve the effect of controlling the violent stress head swinging action of the patient.

The locking mechanism 5 of the present invention is illustrated below by three embodiments:

example 1

As shown in fig. 1 and fig. 2, the locking mechanism 5 in this embodiment includes a plurality of slots 505 provided on a rotating shaft 602 at regular intervals in the circumferential direction and a plurality of inserts 504 provided in a sleeve 601 slidably in the radial direction, and the inserts 504 are distributed at regular intervals in the circumferential direction of the sleeve 601. In this embodiment, the insert 504 is made of a ferromagnetic material, and in order to prevent the insert 504 from generating a magnetic force with other materials, the sleeve 601, the rotating shaft 602, and other components located around the insert 504 are made of stainless steel or the like made of a nonmagnetic material. A first radial hole 503 for the insertion block 504 to slide is formed in the inner wall of the sleeve 601, and a limiting slide way (not shown in the figure) for the insertion block 504 to slide only along the longitudinal direction of the first radial hole 503 is formed in the first radial hole 503. An electromagnet 502 and a first spring 501 are further arranged in the first radial hole 503, and the electromagnet 502 is cylindrical and fixed at the bottom of the first radial hole 503 and used for being attached to the attraction insert 504 after being electrified. The first spring 501 is sleeved on the periphery of the electromagnet 502, the outer end of the first spring is fixed with the bottom of the first radial hole 503, and the inner end of the first spring is fixed with the outer end of the insert 504. The electromagnet 502 shown in fig. 2 is in a compressed state in a state of being energized to adhere to the attraction block 504, and has elastic potential energy for pushing the inner end of the insertion block 504 out of the first radial hole 503, and the front end of the insertion block 504 is pushed out after the attraction force of the electromagnet 502 to the insertion block 504 disappears after the electromagnet is de-energized. The setting heights of the insertion block 504 and the insertion groove 505 are the same, and the size of the insertion groove 505 is slightly larger than the inner end of the insertion block 504, so that when the head of the patient swings and the rotating shaft 602 rotates, when the insertion block 504 corresponds to the insertion groove 505, the inner end of the insertion block 504 is inserted into the insertion groove 505 under the thrust action of the first spring 501, that is, the rotation of the rotating shaft 602 is locked, the rotating pair is locked, and the effect of preventing the head of the patient from rotating is achieved.

The number of the slots 505 in this embodiment ensures that the slots 505 are densely distributed along the circumferential direction of the rotating shaft 602, and the number of the inserting blocks 504 only ensures the locking strength after the inner ends of the inserting blocks 504 are inserted into the slots 505. Through the slots 505 which are densely arranged, after the patient is subjected to severe stress head swinging action and the electromagnet 502 is powered off, the inner end of the inserting block 504 can be quickly inserted into the slot 505 at the corresponding position, so that the amplitude of the severe stress head swinging action is avoided as much as possible, and the gastroscope is further prevented from shifting.

The embodiment also has a starting switch for self-holding of the patient. The starting switch is a spring switch, maintains the electrifying state of the electromagnet 502 in a natural state, and controls the electromagnet 502 to be powered off in a pressing triggering state. The method is characterized in that the revolute pair is locked in advance by a precursor generated by the patient according to the severe stress reaction of the patient, or the locking state of the revolute pair is triggered and maintained by the tonic reaction of the patient's own hand caused by the severe stress reaction after the patient generates the severe stress reaction, and specifically:

as shown in fig. 3, the start switch includes two arc-shaped reeds 508, and the ends of the two arc-shaped reeds 508 are connected to form a shuttle structure. A downward sleeve 511 is arranged in the middle of the upper arc reed 508, and a conducting ring 509 connected with a power supply circuit of the electromagnet 502 is fixedly arranged in the sleeve 511. A sliding column 512 which is upwards and is matched in a sliding and inserting way in the sleeve 511 is arranged in the middle of the lower arc reed 508, and a conductive contact 510 connected with a power supply circuit of the electromagnet 502 is arranged on the sliding column 512. The power supply lines for the electromagnets 502 are shown in fig. 3, in which one end of each electromagnet 502 is connected in parallel to one pole of the power source 506, the other end is connected in parallel to the conductive contact 510 through a wire, and the conductive ring 509 is connected to the other pole of the power source 506 through a wire. That is, in a natural state of the two arc-shaped reeds 508, the conductive contact 510 is in contact with the conductive ring 509 and energizes the electromagnet 502, and an insulating sleeve 513 from which a conductive wire 507 connected to the conductive ring 509 and the conductive contact ball, respectively, is extended is provided at an end of the start switch.

The sliding column 512 in this embodiment has a limiting shoulder 534, and the limiting shoulder 534 cooperates with the end of the sleeve 511 to form a limiting fit for limiting the depth of the sliding column 512 inserted into the sleeve 511, so as to prevent the conductive contact 510 from contacting the closed end of the top of the sleeve 601 and damaging the conductive contact 510, and prevent the small diameter section of the top of the sliding column 512 from being inserted too far into the sleeve 511 and damaging the conductive ring 509.

The implementation process of this embodiment is as follows:

the head of the patient is fixed on the pillow body 4 through two binding bands 3, and the patient is kept in a lateral lying state. The starting switch is handed to the hand of the patient, the starting switch is pressed when the precursor of the stress reaction is generated or after the stress reaction is generated, and the starting switch is released after the stress reaction is finished. The patient is informed of the basic principle, so that the patient can reach a self-control state and relax the body and mind of the patient.

The gastroscope is inserted into the body of a patient for routine diagnosis and treatment operations. In the non-stress state, the conductive ring 509 is in contact with the conductive contact 510, and the electromagnet 502 is energized magnetically and attracts all of the inserts 504 to the state shown in FIG. 2. At the moment, the revolute pair flexibly rotates and flexibly slides in cooperation with the sliding pair, so that the patient can independently and slightly swing and relax to have a rest properly. Under the condition that a precursor of severe stress reaction or severe stress reaction is generated, a patient presses the starting switch according to self consciousness or the severe stress reaction to demagnetize the electromagnet 502, the inserting block 504 is popped out and inserted into the inserting groove 505 under the action of the first spring 501 to stop the rotating shaft 602 from rotating, and the effect of controlling the severe stress swing action is achieved.

In addition, if the elderly or children with inconvenient hands or poor cognitive ability are encountered, the medical staff can hold the starting switch to observe the precursor of the stress reaction of the patient or the stress reaction, and the locking mechanism 5 is controlled by the medical staff. Under the condition, the control can be realized at the initial stage of the stress response of the patient, the continuous long-time violent head swinging action of the patient can be avoided, and the gastroscope displacement caused by the continuous long-time violent action can be avoided as much as possible.

Example 2

Referring to fig. 4 and 5, the principle of the locking mechanism 5 of this embodiment is substantially the same as that of embodiment 1, and the rotation of the rotating shaft 602 is locked by the cooperation of the slot 505 and the insertion block 504, so as to lock the rotation of the pillow body 4. The difference from example 1 is that: first, the locking mechanism 5 of the present embodiment employs a non-electrical, purely mechanical start switch to increase the reliability of the present embodiment. Secondly for the starting switch who adapts to this embodiment, set up slot 505 on sleeve 601, set up inserted block 504 on pivot 602 so that trigger in unison through starting switch, it is specific:

the upper and lower ends of the rotating shaft 602 are closed and have a cylindrical cavity 606, and the insert 504 is slidably fitted into a slide hole formed in the shaft wall of the rotating shaft 602, and a sliding similar to that in embodiment 1 is also provided in the slide hole to restrict the sliding direction of the insert 504. The locking mechanism 5 further comprises a guide post 517 concentrically disposed in the cavity 606 and a sliding ring 518 slidably disposed on the guide post 517. The upper end of the guide column 517 is fixedly connected with the closed upper end of the rotating shaft 602, and the sliding ring 518 and the guide column 517 slide in a matched manner through a key groove structure to avoid rotation. A plurality of pull rods 519 corresponding to the plug blocks 504 one by one are arranged on the sliding ring 518 at intervals along the circumferential direction of the sliding ring, one end of each pull rod 519 is hinged to the sliding ring 518, and the other end of each pull rod 519 is hinged to the corresponding plug block 504. Through the matching, the sliding of the sliding ring 518 along the guide column 517 can control the extension and contraction of the plug-in blocks 504, and the outer ends of all the plug-in blocks 504 are distributed in the slot 505 in a clearance manner when the sliding ring 518 is in the state shown in fig. 5. At this time, the slip ring 518 is pulled down to push the insert 504 outward, so that the outer end of the insert 504 can be inserted into the slots 505 with corresponding height distribution in the rotating process of the rotating shaft 602, thereby realizing the rotation locking of the rotating shaft 602.

In order to maintain the flexible rotation of the rotating shaft 602 in the non-stress state, the second spring 516 is sleeved on the upper portion of the guiding pillar 517 in this embodiment. The upper end of the second spring 516 is fixed to the upper end of the rotating shaft 602, the lower end is fixed to the sliding ring 518, and the second spring 516 is in a natural extension state as shown in fig. 5. To facilitate the rapid and timely locking of the shaft 602 by the patient or physician in stress conditions by pulling down on the slip ring 518, the slip ring 518 is connected to a start cord 515. The starting rope 515 is a steel wire rope, the lower end of the starting rope 515 penetrates through a hole at the bottom of the rotating shaft 602 and then is connected with the starting switch, and the starting switch pulls the sliding ring 518 to move downwards to the outer plug block 504 through the starting rope 515.

As shown in fig. 6, the starting switch includes a tube 521 for the patient to hold, and the lower end of the tube 521 is closed and the upper end is open. A pressing handle 523 is slidably inserted into the upper open end of the pipe 521. The open end position of the pipe body 521 is slidably sleeved with a pressing handle 523, the end part of the pressing handle 523, which is positioned outside the pipe body 521, forms a pressing operation part, the end part, which is positioned inside the pipe body 521, is provided with a first pulley 522, and a second pulley 520 is fixedly arranged inside the pipe body 521. The starting rope 515 extends into the tube 521 from the lower closed end of the tube 521, and then sequentially winds around the second pulley 520 and the first pulley 522 and is fixed on the tube 521. A line tube 514 is further sleeved on the outer periphery of the part, located between the rotating shaft 602 and the tube body 521, of the starting rope 515, the line tube 514 is a flexible rubber tube, two ends of the line tube 514 are respectively butted with the rotating shaft 602 and the tube body 521 to play a role in supporting the starting rope 515, and after the pressing handle 523 is pressed down, the starting rope 515 is pressed down by the first pulley 522, so that the sliding ring 518 is driven to move down, and the outer end of the insertion block 504 extends out.

The implementation method of this embodiment is substantially the same as that of embodiment 1, and is not described again. The only difference is that the present embodiment realizes the locking of the rotating shaft 602 by holding the tube 521 and pressing the pressing handle 523 with the thumb.

Example 3

As shown in fig. 7, the locking mechanism 5 in the present embodiment includes a rotating disc 526, a clamping shell 524, and a speed increasing assembly for increasing the linear speed of the rotation of the outer edge of the rotating shaft 602. A flexible rotating intermediate shaft 527 penetrates through the right end of the sliding piece 604, the intermediate shaft 527 is connected with a rotating shaft 602 transmission rod and is driven to rotate by the rotating shaft 602, and the rotating disc 526 is concentrically fixed at the lower end position of the intermediate shaft 527. The locking shell 524 is circular with an open top and is fastened to the right end of the sliding member 604, and the locking shell 524 and the rotating disc 526 are concentrically arranged. The outer periphery of the rotating disc 526 is provided with the inserting block 504, the inserting block 504 can enable part of the inserting block 504 to be thrown out from the outer periphery of the rotating disc 526 under the action of centrifugal force in the rotating process of the rotating disc 526, the inner periphery of the clamping shell 524 is provided with the inserting groove 505, the part of the inserting block 504 which is thrown out by the centrifugal force is in inserted connection with the inserting groove 505 to fix the rotation of the intermediate shaft 527, and therefore the intermediate shaft 527 fixes the rotating shaft 602, and the effect of controlling the rotation is achieved.

The speed increasing assembly is used for increasing the rotating speed of the rotating disc 526 after the rotating element 603 and the rotating shaft 602 are driven to rotate by the patient with severe stress, so that the inserting block 504 on the rotating disc 526 is partially separated from the upper part of the rotating disc 526 and inserted into the slot 505 under the action of centrifugal force. The speed increasing assembly comprises a primary speed increasing gear 525 arranged on the rotating shaft 602, a secondary speed increasing gear 528 arranged at the upper end of an intermediate shaft 527 and the rotating disc 526. The second-stage speed-increasing gear 528 is meshed with the first-stage speed-increasing gear 525, and the wheel diameters of the first-stage speed-increasing gear 525 and the rotary disc 526 are larger than that of the second-stage speed-increasing gear 528. The linear velocity of the rim of the primary speed-increasing gear 525 in the synchronous rotation process along with the rotating shaft 602 is greater than the linear velocity of the outer edge of the rotating shaft 602, so that the primary speed-increasing effect is achieved. The gear of the secondary speed increasing gear 528 is meshed with the gear of the primary speed increasing gear 525, namely, the linear speed of the gear of the primary speed increasing gear 525 is obtained, and the intermediate shaft 527 obtains a larger angular speed than the rotating shaft 602 due to the ratio of the gear of the secondary speed increasing gear 528 to the gear of the primary speed increasing gear 525. The turntable 526 is fixed on the intermediate shaft 527 and has a larger wheel diameter, so that the outer edge of the turntable 526 can obtain a larger linear speed. Through the arrangement of the speed increasing assembly, the patient can not only make the violent head swinging action to drive the rotation of the rotating shaft 602 to ensure that the inserting block 504 at the periphery of the rotating disc 526 is partially thrown away, but also can rotate the rotating disc 526 by a larger angle under the condition that the rotating shaft 602 rotates by a small angle, so that the throwing away of the inserting block 504 and the locking effect are completed at the violent stress head swinging initial stage of the patient, and the violent head swinging amplitude of the patient is controlled in time.

In addition, a plurality of speed increasing gears can be rotatably arranged on the sliding member 604, the speed increasing gears are sequentially meshed, the wheel diameters are sequentially increased, the speed increasing gear with the smallest wheel diameter is meshed with the primary speed increasing gear 525, and the speed increasing gear with the largest wheel diameter is fixed on the intermediate shaft 527, so that the effects of increasing speed and reducing the swing amplitude of the head similar to the embodiment are achieved.

The cooperation of the insert block 504 and the slot 505 in this embodiment includes, but is not limited to, the following two forms:

as shown in fig. 8, a fitting form is the same as that of embodiments 1 and 2, and the slot 505 is opened in a radial direction of the card housing 524 and has a dimension slightly larger than an outer end of the insert block 504. The insert 504 is slidably fitted in a second radial hole 533 provided in the outer edge of the rotary plate 526, a slide bar 532 is provided in the second radial hole 533, and the insert 504 is slidably fitted on the slide bar 532. A third spring 531 for maintaining the state where the insert 504 and the slot 505 are separated from each other is further provided in the second radial hole 533.

In the matching mode, the head of the patient swings violently in a small amplitude to drive the rotary disc 526 to rotate at a high speed, a large amplitude and a higher speed, and the outer end of the insertion block 504 is further thrown into the slot 505 to achieve the locking effect.

As shown in fig. 9, another mating form of the plug 504 and the socket 505 is: the insertion block 504 is in a long strip shape, and one end of the long strip-shaped insertion block 504 is hinged on the rotating disc 526 and can flexibly rotate. The outside of the other end is provided with a protruding matching block 529 which is matched with the slot 505 in a clamping manner, the protruding matching block 529 is a fan-shaped part with wedge-shaped parts on two sides, the slot 505 is a long strip-shaped part which is distributed along the circumferential direction of the card shell 524, two ends of the slot 505 are wedge-shaped parts which correspond to the wedge-shaped parts on the protruding matching block 529, and a fourth spring 530 which is used for maintaining the separation state of the protruding matching block 529 and the slot 505 is further arranged between the end part of the protruding matching block 529 arranged on the inserting block 504 and the rotating disc 526.

In this form, the small and violent swing of the patient's head drives the rotating disc 526 to rotate at a high speed, a large amplitude and a higher speed, and the free end of the strip-shaped insertion block 504 is thrown out, so that the protruding engagement block on the free end enters the slot 505, and the locking effect is achieved. In this mating form, the centrifugal force of the protruding mating block on the free end of the plug 504 is increased by providing the long-strip-shaped plug 504, and the centrifugal force is further increased by the action of gravity of the protruding mating block 529, thereby ensuring sensitivity.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a controllable gastroscope of violent stress yaw action diagnoses bed that inclines, includes bed body (2) that are used for supporting patient's truck and pillow body (4) that are used for supporting patient's head, its characterized in that: the pillow body (4) is provided with a bandage (3) for fixing the head of a patient, the pillow body (4) is connected to the bed body (2) through a two-degree-of-freedom connecting device (6), the two-degree-of-freedom connecting device (6) comprises a sliding part (604) which is inserted on the bed body (2) in a longitudinal sliding mode along the bed body (2) and a rotating part (603) which is rotatably arranged on the sliding part (604), the pillow body (4) is fixed on the rotating part (603) so that the head of the patient can flexibly swing under the matching of a sliding pair between the sliding part (604) and the bed body (2) and a rotating pair between the rotating part (603) and the sliding part (604), the two-degree-of-freedom connecting device (6) further comprises a locking mechanism (5) which is arranged at the rotating pair position between the rotating part (603) and the sliding part (604), the locking mechanism (5) is used for locking the rotating and the sliding part (603) to be rotatably matched when the patient generates severe stress swinging head action, to avoid violent swinging of the patient's head.

2. The gastroscope diagnostic and treatment lateral bed with the controllable violent stress head swinging motion according to the claim 1, which is characterized in that: the locking mechanism (5) is provided with a starting switch for self-holding of the patient.

3. The gastroscope diagnostic and treatment lateral bed with the controllable violent stress head swinging motion according to the claim 2, which is characterized in that: the rotating pair comprises a sleeve (601) fixed on a sliding piece (604) and a rotating shaft (602) fixed on a rotating piece (603) and rotationally matched with the sleeve (601), the locking mechanism (5) comprises a slot (505) arranged on the rotating shaft (602) along the circumferential direction and an insert block (504) arranged in the sleeve (601) in a sliding manner along the radial direction, the insert block (504) is made of a magnetic material, a first radial hole (503) for the insert block (504) to be in sliding fit is formed in the inner wall of the sleeve (601), an electromagnet (502) used for sucking the insert block (504) into the first radial hole (503) and a first spring (501) used for ejecting the insert block (504) to be in inserting fit with the slot (505) after the electromagnet (502) is powered off are arranged in the first radial hole (503), the starting switch is a spring switch, and the starting switch maintains the electrifying state of the electromagnet (502) under the natural state, and controlling the electromagnet (502) to be powered off in a pressing triggering state.

4. The gastroscope diagnostic and treatment lateral bed with the controllable violent stress head swinging motion according to the claim 3, which is characterized in that: the starting switch comprises two arc reeds (508), the end parts of the two arc reeds (508) are connected to form a shuttle-shaped structure, a sleeve (511) is arranged in the middle of one arc reed (508), a conducting ring (509) connected with a power supply circuit of the electromagnet (502) is fixedly arranged in the sleeve (511), a sliding column (512) matched in the sleeve (511) in a sliding and inserting mode is arranged in the middle of the other arc reed (508), a conducting contact (510) connected with the power supply circuit of the electromagnet (502) is arranged on the sliding column (512), the conducting contact (510) is in contact with the conducting ring (509) and enables the electromagnet (502) to be electrified under the natural state of the two arc reeds (508), and an insulating sleeve (513) extending out of a conducting wire (507) connected with the conducting ring (509) and the conducting contact ball respectively is arranged at the end part of the starting switch.

5. The gastroscope diagnostic and treatment lateral bed with the controllable violent stress head swinging motion according to the claim 4, which is characterized in that: the sliding column (512) is provided with a limiting shoulder (534), and the limiting shoulder (534) is matched with the end part of the sleeve (511) to form a limiting fit for limiting the insertion depth of the sliding column (512) into the sleeve (511).

6. The gastroscope diagnostic and treatment lateral bed with the controllable violent stress head swinging motion according to the claim 2, which is characterized in that: the rotating pair comprises a sleeve (601) fixed on a sliding part (604) and a rotating shaft (602) fixed on a rotating part (603) and rotationally matched with the sleeve (601), the locking mechanism (5) comprises a slot (505) arranged on the inner wall of the sleeve (601) along the circumferential direction and a plurality of insert blocks (504) arranged on the rotating shaft (602) in a sliding manner along the radial direction, the rotating shaft (602) is provided with a cavity (606), guide columns (517) distributed along the length direction of the rotating shaft (602) and sliding rings (518) arranged on the guide columns (517) in a sliding manner are fixedly arranged in the cavity (606), pull rods (519) and starting ropes (515) are arranged on the sliding rings (518), the number of the pull rods (519) is multiple and are distributed at intervals along the circumferential direction of the sliding rings (518), the pull rods (519) correspond to the insert blocks (504) one by one, and two ends of the pull rods (519) are respectively hinged with the sliding rings (518) and the corresponding insert blocks (504), a second spring (516) is sleeved on the guide column (517), two ends of the second spring (516) are respectively connected with the guide column (517) and the sliding ring (518), the second spring (516) is used for maintaining the position of the sliding ring (518) and maintaining the separation state of the insertion block (504) and the insertion slot (505) in a self natural extension state, the starting rope (515) penetrates out of the rotating shaft (602) and then is connected with the starting switch, so that the starting rope (515) is pulled by the starting switch to drive the sliding ring (518) to slide and the insertion block (504) is inserted into the insertion slot (505); the starting switch is including supplying body (521) that the patient gripped, and body (521) one end is sealed the other end and is uncovered, and the open end position of body (521) slides and overlaps and be equipped with pressure handle (523), and pressure handle (523) are located the tip formation outside body (521) and press the operating portion, and the tip that is located body (521) is equipped with first pulley (522), and fixed second pulley (520) that is equipped with in body (521), starting rope (515) stretch into body (521) and wind around second pulley (520) and first pulley (522) after-fixing on body (521) in proper order by the blind end of body (521), and the periphery that lies in part between pivot (602) and body (521) on starting rope (515) still overlaps and is equipped with spool (514).

7. The gastroscope diagnostic and treatment lateral bed with the controllable violent stress head swinging motion according to the claim 1, which is characterized in that: the rotating pair comprises a sleeve (601) fixed on a sliding part (604) and a rotating shaft (602) fixed on a rotating part (603) and rotationally matched with the sleeve (601), the locking mechanism (5) comprises a rotating disc (526) and a clamping shell (524), the rotating disc (526) is rotationally arranged on the sliding part (604) and is in transmission connection with the rotating shaft (602) through a speed increasing assembly, an inserting block (504) which can be partially separated from the rotating disc (526) is arranged on the periphery of the rotating disc (526), the clamping shell (524) is fixed on the sliding part (604) and sleeved on the periphery of the rotating disc (526), and a slot (505) for the inserting block (504) to be inserted and matched is arranged in the clamping shell (524);

the speed increasing assembly is used for increasing the rotating speed of the rotary table (526) after the patient is severely stressed to swing the head to drive the rotating piece (603) and the rotating shaft (602) to rotate, enabling the inserting block (504) on the rotary table (526) to be separated from the upper part of the rotary table (526) under the action of centrifugal force and inserted into the slot (505), and locking the rotation of the rotary table (526) through the matching of the inserting block (504) and the slot (505) so as to lock the rotation of the rotating shaft (602); the speed increasing assembly comprises a first-stage speed increasing gear (525) arranged on the rotating shaft (602), a middle shaft (527) rotatably arranged on the sliding piece (604), a second-stage speed increasing gear (528) arranged on the middle shaft (527) and a turntable (526), wherein the second-stage speed increasing gear (528) is meshed with the first-stage speed increasing gear (525), and the wheel diameters of the first-stage speed increasing gear (525) and the turntable (526) are larger than that of the second-stage speed increasing gear (528).

8. The gastroscope diagnostic and treatment lateral bed with the controllable violent stress head swinging motion according to claim 7, which is characterized in that: the insert block (504) is installed in a second radial hole (533) formed in the outer edge of the turntable (526) in a sliding fit manner, and a third spring (531) for maintaining the separation state of the insert block (504) and the slot (505) is further arranged in the second radial hole (533).

9. The gastroscope diagnostic and treatment lateral bed with the controllable violent stress head swinging motion according to claim 7, which is characterized in that: plug-in block (504) are rectangular form, the one end hinge of plug-in block (504) is on carousel (526), the other end is equipped with slot (505) joint complex protruding cooperation piece (529), protruding cooperation piece (529) are the fan-shaped that both sides all have the wedge portion, slot (505) are the rectangular form of the circumference distribution along card shell (524), the both ends of slot (505) are the wedge that corresponds with the wedge portion on protruding cooperation piece (529), still be equipped with between the tip that is equipped with protruding cooperation piece (529) on plug-in block (504) and carousel (526) and be used for maintaining fourth spring (530) of protruding cooperation piece (529) and slot (505) separation state.