A transport stretcher for emergency treatment
By designing the main frame device, mobile device, sling device and protective mechanism of the first aid transfer stretcher, the problems of discomfort and falling risks during the patient transfer process are solved, and higher safety and operational convenience are achieved.
Patent Information
- Application Number
- CN202411276227.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-12
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2044-09-12
AI Technical Summary
The existing transport stretchers have problems of discomfort or compression injury during the patient's transfer process, and the process is cumbersome and dangerous when getting on and off the ambulance.
A first aid transport stretcher is designed, using technical means such as main frame device, mobile device, retracting device and protective mechanism. The main frame device includes a frame body, side handrail, pushing handrail, outer frame, elastic sheet and stretcher cloth. The mobile device realizes the movement and retracting of the stretcher by locking the rotary rod and rotating cylinder. The protective mechanism prevents the patient from falling through the rotary frame and side protection plate, and provides ventilation through the fan.
It effectively prevents the patient from falling during the stretcher movement, improves the patient's comfort and safety, and simplifies the operation of the stretcher on the ambulance, reducing the risk and difficulty.
Smart Images

Figure CN118873336B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of transport stretchers, in particular to a transport stretcher for emergency treatment. Background Art
[0002] In the process of transporting patients from a designated location to a hospital, the patient must first be transported to an ambulance on a stretcher. After arriving at the hospital, the patient is transferred from the ambulance to the hospital on a stretcher. A transport stretcher is a device used to transfer patients in emergency situations or medical settings. It is designed to improve safety and comfort during transport. Existing stretchers usually use fixed belts to prevent patients from falling off the sides of the stretcher. Although the fixed belts can ensure the stability of the patient during transport, if they are not suitable or adjusted properly, they may cause discomfort or compression injuries. At the same time, the existing stretcher is very cumbersome when getting on and off the ambulance, especially when there are patients on the stretcher. It is inconvenient to use and has certain risks. Summary of the invention
[0003] In view of the above technical problems, the technical solution adopted by the present invention is: a transport stretcher for emergency treatment, including a main frame device, the main frame device includes a frame body, the main frame device is used to place the patient, the main frame device is provided with a moving device and a folding device, the moving device includes a locking rotating rod, the locking rotating rod is rotatably installed under the frame body, the moving device is used to drive the stretcher to move, the folding device includes a rotating cylinder, the rotating cylinder is rotatably installed under the frame body, and the folding device is used to fold the stretcher.
[0004] Furthermore, the main frame device includes side armrests fixedly installed on both sides of the frame, a push armrest fixedly installed on the frame, an outer frame fixedly installed on the frame, a plurality of elastic sheets fixedly installed on the outer frame, a stretcher frame placed on the elastic sheets, and a stretcher cloth provided on the stretcher frame.
[0005] Furthermore, a ventilation mechanism is provided on the frame, and the ventilation mechanism includes a fan and a fan partition fixedly mounted on the frame, the fan partition is located outside the fan, and air is exchanged between the frame and the stretcher cloth through the fan.
[0006] Furthermore, a protective mechanism is provided in the frame, and the protective mechanism includes a rotating frame fixedly installed on the frame, an inner rotating shaft is rotatably installed in the rotating frame, two rotating rods are fixedly installed on the inner rotating shaft, and a rotating wheel is rotatably installed on the rotating rods. A side protection plate is slidably installed on the frame, a long groove is provided on the side protection plate, and a lifting rod is fixedly installed on the rotating rod, and the lifting rod slides in the long groove of the side protection plate.
[0007] When the patient is placed on the stretcher cloth, the patient will press the stretcher cloth down and collapse it, and press the stretcher frame downward. At this time, the elastic sheet is bent, but the stretcher frame will not fall. At the same time, the stretcher frame presses the rotating wheel downward, so that the rotating rod and the inner rotating shaft rotate relative to the rotating frame, thereby driving the side protection plates to rise by lifting the rod, so that when the patient is on the stretcher cloth, the side protection plates rise and are located on both sides of the patient to prevent the patient from falling during the move and causing danger. At the same time, when the weather is hot, the fan is turned on to blow air into the frame to make the patient more comfortable.
[0008] Furthermore, the mobile device includes a passive rotating rod rotatably installed under the frame, a transverse rotating axis is fixedly installed on the locking rotating rod, a limited angle block is rotatably installed on the active rotating rod, a front wheel axle is rotatably installed on the locking rotating rod, a base plate is rotatably installed on the front wheel axle, two front wheels are rotatably installed on the front wheel axle, and an oxygen cylinder is placed on the base plate.
[0009] Furthermore, a quadrilateral mechanism is provided on the locking rotating rod, an active rotating rod is rotatably installed on the locking rotating rod, an upper rotating rod is rotatably installed on the active rotating rod, the upper rotating rod is rotatably installed with the frame, a front transverse rotating shaft is fixedly installed on the passive rotating rod, a lower front rotating rod is rotatably installed on the front transverse rotating shaft, an upper front rotating rod is rotatably installed on the lower front rotating rod, the upper front rotating rod is rotatably installed with the frame, a rear wheel axle is rotatably installed on the passive rotating rod, two rear wheels are rotatably installed on the rear wheel axle, and the rear wheel axle is rotatably installed with the base plate.
[0010] Furthermore, a locking mechanism is provided on the locking rotating rod, and the locking mechanism includes an upper connecting shaft fixedly mounted on the locking rotating rod, and a locking gear is fixedly mounted on the upper connecting shaft.
[0011] In the initial state, the stuck gear is stuck by the tooth block. At this time, the locking rod and the passive rod are in a vertical state. At this time, the armrest is pushed, and the patient is moved by the rotation of the front and rear wheels. The patient is moved to the ambulance. When the patient is undersupplied, oxygen can be delivered to the patient through the oxygen cylinder connected to the oxygen tube.
[0012] Furthermore, the folding device includes a rotating rod shaft rotatably installed under the frame, a folding rotating rod and a turning rod are fixedly installed on the rotating rod shaft, a tooth block is fixedly installed on the turning rod, an intermediate rotating rod is fixedly installed on the folding rotating rod, the intermediate rotating rod and the turning rod are fixedly installed, a folding shaft is rotatably installed on the folding rotating rod, a folding rotating wheel is fixedly installed on the folding rotating rod, and the top of the rotating cylinder is rotatably installed with the folding rotating rod.
[0013] When the frame arrives near the ambulance, the rotating cylinder contracts, driving the retracting rotating rod and the retracting rotating wheel to rotate, thereby driving the turning rod to rotate, so that the locking tooth block leaves the stuck gear, pushing the frame so that the retracting rotating wheel reaches the ambulance, and then continuing to push the frame, the locking rotating rod will contact the ambulance, and under the action of the ambulance body, the locking rotating rod rotates relative to the frame, and under the action of the active rotating rod and the upper rotating rod, the passive rotating rod rotates synchronously with the locking rotating rod, the lower front rotating rod rotates synchronously with the active rotating rod, and the upper front rotating rod rotates synchronously with the upper rotating rod The synchronous rotation causes the base plate to rise and fall, realizing the folding of the locking rotating rod, the passive rotating rod and the base plate, and then the front wheels and the rear wheels are at the same height as the folding rotating wheels. The frame can then be pushed into the ambulance. When the ambulance arrives at the hospital, the frame is pulled out of the ambulance, and the locking rotating rod, the passive rotating rod, the active rotating rod, the upper rotating rod, the lower front rotating rod and the upper front rotating rod are reset under the action of the gravity of the base plate. The angle limiting block is used to limit the angles of the active rotating rod and the upper rotating rod, and then the rotating cylinder is extended to insert the tooth block into the stuck gear.
[0014] Compared with the prior art, the present invention has the following beneficial effects: (1) The protective mechanism provided in the present invention enables the side protection plates on both sides to extend out through the rotating rod and the rotating wheel after the patient lies on the stretcher cloth, and to be located on both sides of the patient, thereby preventing the patient from falling out of the side of the stretcher during the movement of the stretcher; (2) The fan provided in the present invention can blow air between the stretcher cloth and the frame body to dissipate heat, thereby preventing the patient's condition from worsening during the transportation of the patient in overheated weather; (3) The folding device provided in the present invention will be folded when the stretcher reaches the ambulance, and continuing to push the stretcher will fold the moving device upward, so that the stretcher can be easily put into the ambulance, reducing the danger of the patient getting on the ambulance, and greatly reducing the difficulty of getting the stretcher on the ambulance; (4) The locking mechanism provided in the present invention enables the quadrilateral mechanism to remain stable during normal stretcher transportation, and the quadrilateral mechanism can be retracted when the stretcher is put on the ambulance, which is convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention;
[0016] Figure 2 This is a schematic diagram of the structure of the main frame device of the present invention;
[0017] Figure 3 Schematic diagram of the protective mechanism structure of the present invention Figure 1 ;
[0018] Figure 4 Schematic diagram of the protective mechanism structure of the present invention Figure 2 ;
[0019] Figure 5 The structure of the mobile device of the present invention is shown in FIG. Figure 1 ;
[0020] Figure 6 The structure of the mobile device of the present invention is shown in FIG. Figure 2 ;
[0021] Figure 7 It is a schematic diagram of the structure of the folding device of the present invention.
[0022] Reference numerals: 101-frame; 102-fan partition; 103-side armrest; 104-pushing armrest; 105-outer frame; 106-stretcher cloth; 107-rotating frame; 108-inner rotating shaft; 109-fan; 110-rotating rod; 111-rotating wheel; 112-lifting rod; 113-side protection plate; 114-elastic sheet; 115-stretcher frame; 201-locking rotating rod; 202-active rotating rod; 203-transverse rotating shaft; 204-bottom plate; 205-front wheel shaft; 20 6-front wheel; 207-oxygen cylinder; 208-angle limit block; 209-upper rotating rod; 210-passive rotating rod; 211-upper front rotating rod; 212-lower front rotating rod; 213-front transverse rotating shaft; 214-rear wheel shaft; 215-rear wheel; 216-upper connecting shaft; 217-stuck gear; 301-rotating cylinder; 302-folding rotating rod; 303-folding rotating wheel; 304-rotating rod shaft; 305-middle rotating rod; 306-folding shaft; 307-turning rod; 308-grip block. DETAILED DESCRIPTION
[0023] The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings.
[0024] Example: Reference Figure 1-Figure 7 A transport stretcher for emergency treatment comprises a main frame device, the main frame device comprises a frame body 101, the main frame device is used to place a patient, a moving device and a folding device are arranged on the main frame device, the moving device comprises a locking rotating rod 201, the locking rotating rod 201 is rotatably installed under the frame body 101, the moving device is used to drive the stretcher to move, the folding device comprises a rotating cylinder 301, the rotating cylinder 301 is rotatably installed under the frame body 101, and the folding device is used to fold the stretcher.
[0025] like Figure 2-Figure 4 As shown, the main frame device includes side armrests 103 fixedly installed on both sides of the frame body 101, a push armrest 104 fixedly installed on the frame body 101, an outer frame 105 fixedly installed on the frame body 101, a plurality of elastic sheets 114 fixedly installed on the outer frame 105, a stretcher frame 115 is placed on the elastic sheets 114, and a stretcher cloth 106 is provided on the stretcher frame 115.
[0026] like Figure 2-Figure 4As shown, a ventilation mechanism is provided on the frame 101 , and the ventilation mechanism includes a fan 109 and a fan partition 102 fixedly mounted on the frame 101 . The fan partition 102 is located outside the fan 109 , and the fan 109 is used to ventilate the space between the frame 101 and the stretcher cloth 106 .
[0027] like Figure 2-Figure 4 As shown, a protective mechanism is provided in the frame 101, and the protective mechanism includes a rotating frame 107 fixedly mounted on the frame 101, an inner rotating shaft 108 is rotatably mounted in the rotating frame 107, two rotating rods 110 are fixedly mounted on the inner rotating shaft 108, a rotating wheel 111 is rotatably mounted on the rotating rod 110, a side protective plate 113 is slidably mounted on the frame 101, a long groove is provided on the side protective plate 113, a lifting rod 112 is fixedly mounted on the rotating rod 110, and the lifting rod 112 slides in the long groove of the side protective plate 113.
[0028] When the patient is placed on the stretcher cloth 106, the patient will press the stretcher cloth 106 down and collapse it, and press the stretcher frame 115 downward. At this time, the elastic sheet 114 is bent, but the stretcher frame 115 will not fall. At the same time, the stretcher frame 115 presses the rotating wheel 111 downward, so that the rotating rod 110 and the inner rotating shaft 108 rotate relative to the rotating frame 107, thereby driving the side protection plates 113 to rise through the lifting rod 112, so that when the patient is on the stretcher cloth 106, the side protection plates 113 rise and are located on both sides of the patient to prevent the patient from falling during the movement and causing danger. At the same time, when the weather is hot, the fan 109 is turned on to blow air into the frame 101 to make the patient more comfortable.
[0029] like Figure 5 , Figure 6 As shown, the mobile device includes a passive rotating rod 210 rotatably mounted under the frame 101, a transverse rotating shaft 203 is fixedly mounted on the locking rotating rod 201, a limited angle block 208 is rotatably mounted on the active rotating rod 202, a front wheel axle 205 is rotatably mounted on the locking rotating rod 201, a base plate 204 is rotatably mounted on the front wheel axle 205, two front wheels 206 are rotatably mounted on the front wheel axle 205, and an oxygen cylinder 207 is placed on the base plate 204.
[0030] like Figure 5 , Figure 6As shown, a quadrilateral mechanism is provided on the locking rotating rod 201, an active rotating rod 202 is rotatably installed on the locking rotating rod 201, an upper rotating rod 209 is rotatably installed on the active rotating rod 202, the upper rotating rod 209 is rotatably installed with the frame 101, a front transverse rotating shaft 213 is fixedly installed on the passive rotating rod 210, a lower front rotating rod 212 is rotatably installed on the front transverse rotating shaft 213, an upper front rotating rod 211 is rotatably installed on the lower front rotating rod 212, the upper front rotating rod 211 is rotatably installed with the frame 101, a rear wheel axle 214 is rotatably installed on the passive rotating rod 210, two rear wheels 215 are rotatably installed on the rear wheel axle 214, and the rear wheel axle 214 is rotatably installed with the base plate 204.
[0031] like Figure 5 , Figure 6 As shown, a locking mechanism is provided on the locking rotating rod 201 , and the locking mechanism includes an upper connecting shaft 216 fixedly mounted on the locking rotating rod 201 , and a locking gear 217 is fixedly mounted on the upper connecting shaft 216 .
[0032] In the initial state, the locking gear 217 is stuck by the locking tooth block 308. At this time, the locking rotating rod 201 and the passive rotating rod 210 are in a vertical state. At this time, the pushing armrest 104 is pushed, and the patient is moved by the rotation of the front wheel 206 and the rear wheel 215. The patient is moved to the ambulance. When the patient is short of oxygen, oxygen can be delivered to the patient by connecting the oxygen tube through the oxygen cylinder 207.
[0033] like Figure 7 As shown, the folding device includes a rotating rod shaft 304 rotatably installed under the frame 101, a folding rotating rod 302 and a turning rod 307 are fixedly installed on the rotating rod shaft 304, a tooth block 308 is fixedly installed on the turning rod 307, an intermediate rotating rod 305 is fixedly installed on the folding rotating rod 302, the intermediate rotating rod 305 and the turning rod 307 are fixedly installed, a folding shaft 306 is rotatably installed on the folding rotating rod 302, a folding rotating wheel 303 is fixedly installed on the folding shaft 306, and the top of the rotating cylinder 301 is rotatably installed with the folding rotating rod 302.
[0034] When the frame 101 arrives near the ambulance, the rotating cylinder 301 contracts, driving the retracting rotating rod 302 and the retracting rotating wheel 303 to rotate, thereby driving the turning rod 307 to rotate, so that the locking tooth block 308 leaves the stuck gear 217, pushing the frame 101 so that the retracting rotating wheel 303 reaches the ambulance, and then continuing to push the frame 101, the locking rotating rod 201 will contact the ambulance, and under the action of the ambulance body, the locking rotating rod 201 rotates relative to the frame 101, and under the action of the active rotating rod 202 and the upper rotating rod 209, the passive rotating rod 210 rotates synchronously with the locking rotating rod 201, the lower front rotating rod 212 rotates synchronously with the active rotating rod 202, and the upper front rotating rod 211 rotates synchronously with the upper rotating rod 209. The rotation causes the base plate 204 to rise and fall, thereby achieving the folding of the locking rotating rod 201, the passive rotating rod 210 and the base plate 204, and then the front wheel 206 and the rear wheel 215 are at the same height as the folding rotating wheel 303. The frame 101 can then be pushed into the ambulance. When the ambulance arrives at the hospital, the frame 101 is pulled out of the ambulance, and the locking rotating rod 201, the passive rotating rod 210, the active rotating rod 202, the upper rotating rod 209, the lower front rotating rod 212 and the upper front rotating rod 211 are reset under the action of the gravity of the base plate 204. The angle limiting block 208 is used to limit the angles of the active rotating rod 202 and the upper rotating rod 209. Then the rotating cylinder 301 is extended, so that the tooth block 308 is inserted into the stuck gear 217.
[0035] The working principle of the emergency transport stretcher disclosed in the present invention is: a patient is placed on a stretcher cloth 106, and the patient will press the stretcher cloth 106 down and collapse it, and press the stretcher frame 115 downward. At this time, the elastic sheet 114 is bent, but the stretcher frame 115 will not fall off. At the same time, the stretcher frame 115 presses the rotating wheel 111 downward, so that the rotating rod 110 and the inner rotating shaft 108 rotate relative to the rotating frame 107, thereby driving the side protection plates 113 to rise through the lifting rod 112, so that when the patient is on the stretcher cloth 106, the side protection plates 113 rise and are located on both sides of the patient, preventing the patient from falling during the movement and causing danger. At the same time, when the weather is hot, the fan 109 is turned on to blow air into the frame body 101 to make the patient more comfortable. In the initial state, the locking gear 217 is stuck by the locking tooth block 308. At this time, the locking rotating rod 201 and the passive rotating rod 210 are in a vertical state. At this time, the pushing armrest 104 is pushed, and the patient is moved by the rotation of the front wheel 206 and the rear wheel 215. The patient is moved to the ambulance. When the patient is short of oxygen, oxygen can be delivered to the patient by connecting the oxygen tube through the oxygen cylinder 207. When the frame 101 arrives near the ambulance, the rotating cylinder 301 contracts, driving the retracting rotating rod 302 and the retracting rotating wheel 303 to rotate, thereby driving the turning rod 307 to rotate, so that the locking tooth block 308 leaves the stuck gear 217, pushing the frame 101 so that the retracting rotating wheel 303 reaches the ambulance, and then continuing to push the frame 101, the locking rotating rod 201 will contact the ambulance, and under the action of the ambulance body, the locking rotating rod 201 rotates relative to the frame 101, and under the action of the active rotating rod 202 and the upper rotating rod 209, the passive rotating rod 210 rotates synchronously with the locking rotating rod 201, the lower front rotating rod 212 rotates synchronously with the active rotating rod 202, and the upper front rotating rod 211 rotates synchronously with the upper rotating rod 209. The rotation causes the base plate 204 to rise and fall, thereby achieving the folding of the locking rotating rod 201, the passive rotating rod 210 and the base plate 204, and then the front wheel 206 and the rear wheel 215 are at the same height as the folding rotating wheel 303. The frame 101 can then be pushed into the ambulance. When the ambulance arrives at the hospital, the frame 101 is pulled out of the ambulance, and the locking rotating rod 201, the passive rotating rod 210, the active rotating rod 202, the upper rotating rod 209, the lower front rotating rod 212 and the upper front rotating rod 211 are reset under the action of the gravity of the base plate 204. The angle limiting block 208 is used to limit the angles of the active rotating rod 202 and the upper rotating rod 209. Then the rotating cylinder 301 is extended, so that the tooth block 308 is inserted into the stuck gear 217.
[0036] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. An emergency transport stretcher, comprising a main frame device, characterized in that: The main frame device comprises a frame body (101), the main frame device is used to place a patient, a moving device and a folding device are arranged on the main frame device, the moving device comprises a locking rotating rod (201), the locking rotating rod (201) is rotatably mounted under the frame body (101), the moving device is used to drive the stretcher to move, the folding device comprises a rotating cylinder (301), the rotating cylinder (301) is rotatably mounted under the frame body (101), and the folding device is used to fold the stretcher; The main frame device comprises side armrests (103) fixedly mounted on both sides of the frame body (101); a push armrest (104) fixedly mounted on the frame body (101); an outer frame (105) fixedly mounted on the frame body (101); a plurality of elastic sheets (114) fixedly mounted on the outer frame (105); a stretcher frame (115) is placed on the elastic sheet (114); and a stretcher cloth (106) is provided on the stretcher frame (115); A protective mechanism is arranged inside the frame (101), and the protective mechanism comprises a rotating frame (107) fixedly mounted on the frame (101), an inner rotating shaft (108) rotatably mounted inside the rotating frame (107), two rotating rods (110) fixedly mounted on the inner rotating shaft (108), a rotating wheel (111) rotatably mounted on the rotating rod (110), a side protective plate (113) slidably mounted on the frame (101), a long groove being arranged on the side protective plate (113), a lifting rod (112) fixedly mounted on the rotating rod (110), and the lifting rod (112) sliding in the long groove of the side protective plate (113).
2. The emergency transport stretcher according to claim 1, characterized in that: The frame (101) is provided with a ventilation mechanism, the ventilation mechanism comprising a fan (109) and a fan baffle (102) fixedly mounted on the frame (101); the fan baffle (102) is located outside the fan (109), and air is exchanged between the frame (101) and the stretcher cloth (106) via the fan (109).
3. The emergency transport stretcher according to claim 1, characterized in that: The mobile device comprises a passive rotating rod (210) rotatably mounted below the frame (101); a transverse rotating shaft (203) is fixedly mounted on the locking rotating rod (201); a limited angle block (208) is rotatably mounted on the active rotating rod (202); a front wheel shaft (205) is rotatably mounted on the locking rotating rod (201); a bottom plate (204) is rotatably mounted on the front wheel shaft (205); two front wheels (206) are rotatably mounted on the front wheel shaft (205); and an oxygen cylinder (207) is placed on the bottom plate (204).
4. The emergency transport stretcher according to claim 3, characterized in that: The locking rotating rod (201) is provided with a quadrilateral mechanism, an active rotating rod (202) is rotatably mounted on the locking rotating rod (201), an upper rotating rod (209) is rotatably mounted on the active rotating rod (202), and the upper rotating rod (209) is rotatably mounted on the frame (101), a front transverse rotating shaft (213) is fixedly mounted on the passive rotating rod (210), a lower front rotating rod (212) is rotatably mounted on the front transverse rotating shaft (213), an upper front rotating rod (211) is rotatably mounted on the lower front rotating rod (212), and the upper front rotating rod (211) is rotatably mounted on the frame (101), a rear wheel shaft (214) is rotatably mounted on the passive rotating rod (210), two rear wheels (215) are rotatably mounted on the rear wheel shaft (214), and the rear wheel shaft (214) is rotatably mounted on the bottom plate (204).
5. The emergency transport stretcher according to claim 4, characterized in that: The locking rotating rod (201) is provided with a locking mechanism, and the locking mechanism comprises an upper connecting shaft (216) fixedly mounted on the locking rotating rod (201), and a locking gear (217) is fixedly mounted on the upper connecting shaft (216).
6. The emergency transport stretcher according to claim 1, characterized in that: The stowing device comprises a rotating rod shaft (304) rotatably mounted below the frame (101); a stowing rotating rod (302) and a turning rod (307) are fixedly mounted on the rotating rod shaft (304); a tooth block (308) is fixedly mounted on the turning rod (307); an intermediate rotating rod (305) is fixedly mounted on the stowing rotating rod (302); the intermediate rotating rod (305) and the turning rod (307) are fixedly mounted; a stowing shaft (306) is rotatably mounted on the stowing rotating rod (302); a stowing rotating wheel (303) is fixedly mounted on the stowing shaft (306); and the top of the rotating cylinder (301) is rotatably mounted on the stowing rotating rod (302).
Citation Information
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Stretcher for cardiology department and use method
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Medical first-aid stretcher bed with quasi-zero stiffness vibration reduction
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