Pediatric blood drawing nursing device
Through the combination of infrared recognition components and membrane pressure sensors, stable fixation and pressure detection of children's arms are achieved, solving the problems of movement and discomfort in children's arms during blood draw, and reducing fear by comforting components and improving blood draw smoothness and safety.
Patent Information
- Application Number
- CN202411326238.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-23
- Publication Date
- 2024-12-20
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing pediatric blood drawing care device causes the arms to move due to fear and tension during the blood drawing of children, resulting in fixation discomfort and blood drawing failure. The existing devices cannot effectively avoid the discomfort of children's arms.
A pediatric blood-drawing care device was designed, using infrared recognition components to automatically fix the child's arms, and detect the pressure of the restraint belt through a thin film pressure sensor to avoid excessive pressure causing discomfort to children. At the same time, comforting components such as players and ringing bells are set up. To divert children's attention and reduce fear.
The stable fixation and pressure detection of children's arms are achieved, which avoids the intensification of children's arm discomfort during blood draw, improves the smoothness and safety of blood draw, and effectively reduces children's fear through soothing components.
Smart Images

Figure CN119157538A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of blood drawing and nursing devices, in particular to a pediatric blood drawing and nursing device. Background Art
[0002] During venous blood drawing, medical staff need to use rubber tubes to tighten the upper arm of the person being drawn to expose the blood vessels, and then draw blood at the elbow. Because some people, especially children, are extremely nervous and afraid of blood drawing, their arms move around and their muscles are tense, making it difficult to complete the blood drawing process smoothly, and sometimes even causing accidental injuries, so auxiliary fixation devices are needed.
[0003] After searching, a Chinese patent with publication number CN 114027837 A mentioned a pediatric blood drawing nursing device, including a mounting seat, a placement groove is provided on the side of the mounting seat, and the placement groove is a groove in the shape of half a circle. In the present invention, the upper arm of the arm is placed inside the placement groove, and the forearm of the arm is placed between the two groups of blocks. The position of the second connecting block is adjusted by the supporting device, and the second connecting block drives the first connecting block to rotate with the first rotating block as the axis, so that the angle of the second connecting block is rotated to the most comfortable angle, and then the upper arm is squeezed by the auxiliary fixing device to fix it, and the auxiliary fixing device is positioned by the locking device so that the auxiliary fixing device is fixed. The above method is used to fix the entire arm to facilitate blood drawing. In this process, the failure of blood drawing caused by the arm moving randomly can be prevented.
[0004] Although the above device is convenient for fixing the child's arm as a whole, making it easier for medical staff to draw blood from the child, during the blood drawing process, the child's arm may move around due to his or her extreme fear. Although the above device has good fixation, it may aggravate the discomfort in the child's arm. Therefore, the above device needs to be improved. Summary of the invention
[0005] The object of the present invention is to provide a pediatric blood drawing care device to solve the problems raised in the above background technology.
[0006] To solve the above problems, the technical solutions adopted by the present invention are as follows:
[0007] A pediatric blood drawing nursing device, comprising
[0008] A slot seat plate, wherein an installation slot is provided on the upper wall of the slot seat plate, an arm supporting arc plate is fixedly installed inside the installation slot, and a cavity is provided on one side wall of the slot seat plate;
[0009] A disinfection component, which is disposed below the arm support arc plate and is installed in the cavity opening;
[0010] A restraint belt, one end of which is fixedly connected to the inner wall of the arm support arc plate, and an outer wall of the restraint belt is provided with a blood drawing port;
[0011] A winding assembly, which is arranged on one side of the slot seat plate and is used to tighten the restraint belt;
[0012] Thin film pressure sensors, several of which are fixedly mounted on the lower wall of the restraint belt;
[0013] A controller, wherein the controller is fixedly arranged on a side wall of the slot seat plate;
[0014] An infrared recognition component, the infrared recognition component is arranged on one side above the slot seat plate;
[0015] The soothing component is arranged above the groove seat plate and is used for soothing children.
[0016] Preferably, the arm support arc plate is made of transparent acrylic material.
[0017] Preferably, the disinfection component includes a power-on slot plate, an ultraviolet lamp tube and a power block, the power-on slot plate and the power block are fixedly installed inside the cavity, and a plurality of the ultraviolet lamp tubes are fixedly installed on the upper wall of the power-on slot plate.
[0018] Preferably, a protective shell is fixedly connected to one side wall of the slot seat plate, and a control switch is fixedly installed inside the protective shell.
[0019] Preferably, the winding assembly includes a fixed plate, a servo motor and a winding shaft, the fixed plate is fixedly arranged on a side wall of the slot seat plate, one end of the servo motor is fixedly connected to a side wall of the fixed plate, the output end of the servo motor is fixedly connected to one end of the winding shaft, a square opening is opened on one side wall of the slot seat plate, and one end of the constraint belt passes through the square opening and is fixedly connected to the outer wall of the winding shaft.
[0020] Preferably, the other end of the winding shaft is fixedly connected to a round shaft, a side wall of the groove seat plate is fixedly connected to a support plate, a side wall of the support plate is fixedly connected to an adapter tube, a cavity is opened at one end of the adapter tube, and the end of the round shaft away from the winding shaft passes through the cavity and rotates with the adapter tube.
[0021] Preferably, the infrared recognition component includes an infrared sensor, the upper wall of the slot seat plate is fixedly connected with a rack rod, the infrared sensor is fixedly arranged on the rack rod, and the infrared sensor is communicatively connected with the controller.
[0022] Preferably, the soothing component includes a base plate, a player, a mounting block and a rattle, the base plate is fixedly arranged on the upper wall of the slot seat plate, the mounting block is fixedly arranged on the bottom wall of the player, and the rattle is fixedly arranged on the upper wall of the player.
[0023] Preferably, the inner two side walls of the base plate are rotatably connected with a rotating shaft, the mounting block is fixedly mounted on the outer wall of the rotating shaft, a second gear is provided on one side of the base plate, one end of the rotating shaft passes through the inner side wall of the base plate and extends to the outer side, and is fixedly connected to one end of the second gear.
[0024] Preferably, an internal threaded slot is opened on one side wall of the base plate, a screw rod is movably connected inside the internal threaded slot, one end of the screw rod is fixedly connected to a horizontal axis, the outside of the horizontal axis is rotatably connected to a first gear, the end of the horizontal axis away from the screw rod is fixedly connected to a handle end, and the first gear is meshed with the second gear.
[0025] Compared with the prior art, the present invention has the following beneficial effects:
[0026] The present invention can identify the position of the child's arm by arranging an infrared sensor so as to automatically restrain and fix the child's arm, and can detect the pressure of the restraint belt on the child's arm by arranging a thin film pressure sensor to avoid discomfort to the child caused by excessive pressure. During the blood collection process, the soothing component is arranged to divert the attention of the child who is having blood drawn, thereby further achieving a soothing effect, and the structural design is humanized. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Figure 1 The figure is a schematic diagram of the overall external structure of a pediatric blood drawing and nursing device;
[0028] Figure 2 It is a first-person structural diagram of a pediatric blood drawing nursing device;
[0029] Figure 3 It is a partial structural schematic diagram of a pediatric blood drawing nursing device;
[0030] Figure 4 A schematic diagram of the structure of a pediatric blood drawing nursing device from a second perspective;
[0031] Figure 5 It is a partial structural schematic diagram of a pediatric blood drawing nursing device;
[0032] Figure 6 The figure is a schematic diagram of the restraint belt structure of a pediatric blood drawing nursing device.
[0033] In the figure: 1. slot seat plate; 2. arm support arc plate; 3. power slot plate; 4. ultraviolet lamp tube; 5. power block; 6. protective shell; 7. control switch; 8. restraint belt; 9. fixing plate; 10. servo motor; 11. winding shaft; 12. round shaft; 13. support plate; 14. adapter tube; 15. blood drawing chamber; 16. film pressure sensor; 17. controller; 18. infrared sensor; 19. rack; 20. bottom plate; 21. player; 22. mounting block; 23. rattle; 24. rotating shaft; 25. second gear; 26. screw rod; 27. first gear; 28. handle end. DETAILED DESCRIPTION
[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0035] Embodiment 1:
[0036] See also Figure 1-Figure 6 As shown, the present invention is a pediatric blood drawing nursing device, comprising
[0037] A slot seat plate 1, an upper wall of the slot seat plate 1 is provided with an installation slot, an arm support arc plate 2 is fixedly installed inside the installation slot, and a cavity is provided on one side wall of the slot seat plate 1;
[0038] A disinfection component is disposed below the arm support arc plate 2 and is installed in the cavity opening;
[0039] A restraint belt 8, one end of which is fixedly connected to the inner wall of the arm support arc plate 2, and a blood drawing port 15 is provided on the outer wall of the restraint belt 8;
[0040] A winding assembly, which is arranged on one side of the slot seat plate 1 and is used to tighten the restraining belt 8;
[0041] A thin film pressure sensor 16, wherein a plurality of thin film pressure sensors 16 are fixedly mounted on the lower wall of the restraint belt 8;
[0042] A controller 17, the controller 17 is fixedly arranged on a side wall of the slot seat plate 1;
[0043] Infrared recognition component, the infrared recognition component is arranged on one side above the slot seat plate 1;
[0044] The soothing component is arranged above the slot seat plate 1 and is used for soothing children.
[0045] Depend on Figure 1-Figure 2It can be seen that the arm support arc plate 2 is made of transparent acrylic material.
[0046] The disinfection assembly includes a powered slot plate 3 , an ultraviolet lamp tube 4 and a power block 5 . The powered slot plate 3 and the power block 5 are fixedly installed inside the cavity, and a plurality of ultraviolet lamp tubes 4 are fixedly installed on the upper wall of the powered slot plate 3 .
[0047] A protective shell 6 is fixedly connected to one side wall of the slot seat plate 1 , and a control switch 7 is fixedly installed inside the protective shell 6 .
[0048] As can be seen from the above, after the blood is drawn, in order to prevent cross infection between children, the medical staff starts the ultraviolet lamp 4 through the control switch 7, wherein the ultraviolet lamp 4 is installed obliquely, and the arm support arc plate 2 is made of transparent acrylic material. During specific use, the arm support arc plate 2 and the restraint belt 8 can be irradiated and disinfected by the ultraviolet light emitted by the ultraviolet lamp 4, and the structural design is humanized.
[0049] Embodiment 2:
[0050] A slot seat plate 1, an upper wall of the slot seat plate 1 is provided with an installation slot, an arm support arc plate 2 is fixedly installed inside the installation slot, and a cavity is provided on one side wall of the slot seat plate 1;
[0051] A disinfection component is disposed below the arm support arc plate 2 and is installed in the cavity opening;
[0052] A restraint belt 8, one end of which is fixedly connected to the inner wall of the arm support arc plate 2, and a blood drawing port 15 is provided on the outer wall of the restraint belt 8;
[0053] A winding assembly, which is arranged on one side of the slot seat plate 1 and is used to tighten the restraining belt 8;
[0054] A thin film pressure sensor 16, wherein a plurality of thin film pressure sensors 16 are fixedly mounted on the lower wall of the restraint belt 8;
[0055] A controller 17, the controller 17 is fixedly arranged on a side wall of the slot seat plate 1;
[0056] Infrared recognition component, the infrared recognition component is arranged on one side above the slot seat plate 1;
[0057] The soothing component is arranged above the slot seat plate 1 and is used for soothing children.
[0058] refer to Figure 1 , Figure 2 and Figure 4 As shown, the infrared recognition component includes an infrared sensor 18 , a rack 19 is fixedly connected to the upper wall of the slot seat plate 1 , the infrared sensor 18 is fixedly arranged on the rack 19 , and the infrared sensor 18 is communicatively connected with the controller 17 .
[0059] As can be seen from the above, when the medical staff places the child's arm inside the arm support arc plate 2, at this time, the setting of the infrared sensor 18 is convenient for identifying the position of the child's arm. Further, the infrared sensor 18 sends the identified information to the controller 17. Further, the controller 17 receives the information and controls the driving servo motor 10. At this time, the winding component is used to restrain the child's arm, and by setting the thin film pressure sensor 16, it is convenient to detect the pressure caused by the restraint belt 8 on the child's arm. When the pressure is less than the threshold set by the controller 17, at this time, the controller 17 stops driving the servo motor 10, and then stops winding, so as to avoid excessive restraint on the child's arm and cause discomfort.
[0060] Embodiment three:
[0061] A slot seat plate 1, an upper wall of the slot seat plate 1 is provided with an installation slot, an arm support arc plate 2 is fixedly installed inside the installation slot, and a cavity is provided on one side wall of the slot seat plate 1;
[0062] A disinfection component is disposed below the arm support arc plate 2 and is installed in the cavity opening;
[0063] A restraint belt 8, one end of which is fixedly connected to the inner wall of the arm support arc plate 2, and a blood drawing port 15 is provided on the outer wall of the restraint belt 8;
[0064] A winding assembly, which is arranged on one side of the slot seat plate 1 and is used to tighten the restraining belt 8;
[0065] A thin film pressure sensor 16, wherein a plurality of thin film pressure sensors 16 are fixedly mounted on the lower wall of the restraint belt 8;
[0066] A controller 17, the controller 17 is fixedly arranged on a side wall of the slot seat plate 1;
[0067] Infrared recognition component, the infrared recognition component is arranged on one side above the slot seat plate 1;
[0068] The soothing component is arranged above the slot seat plate 1 and is used for soothing children.
[0069] refer to Figure 1 , Figure 3 , Figure 4 and Figure 6 As shown, the winding assembly includes a fixed plate 9, a servo motor 10 and a winding shaft 11. The fixed plate 9 is fixedly arranged on a side wall of the slot seat plate 1, one end of the servo motor 10 is fixedly connected to a side wall of the fixed plate 9, and the output end of the servo motor 10 is fixedly connected to one end of the winding shaft 11. A square opening is opened on one side wall of the slot seat plate 1, and one end of the restraint belt 8 passes through the square opening and is fixedly connected to the outer wall of the winding shaft 11.
[0070] A round shaft 12 is fixedly connected to the other end of the winding shaft 11, a support plate 13 is fixedly connected to one side wall of the groove seat plate 1, and an adapter tube 14 is fixedly connected to one side wall of the support plate 13. A cavity is opened at one end of the adapter tube 14, and the end of the round shaft 12 away from the winding shaft 11 passes through the cavity and rotates with the adapter tube 14.
[0071] From the above, it can be seen that, specifically, the servo motor 10 is driven by the controller 17, and the servo motor 10 further drives the reel 11 to rotate, which makes it easier to reel in the restraint belt 8, thereby restraining the child's arm. After the child's arm is restrained, medical staff can draw blood from the child's arm through the blood drawing port 15, and the operation is convenient and quick.
[0072] Embodiment 4:
[0073] A slot seat plate 1, an upper wall of the slot seat plate 1 is provided with an installation slot, an arm support arc plate 2 is fixedly installed inside the installation slot, and a cavity is provided on one side wall of the slot seat plate 1;
[0074] A disinfection component is disposed below the arm support arc plate 2 and is installed in the cavity opening;
[0075] A restraint belt 8, one end of which is fixedly connected to the inner wall of the arm support arc plate 2, and a blood drawing port 15 is provided on the outer wall of the restraint belt 8;
[0076] A winding assembly, which is arranged on one side of the slot seat plate 1 and is used to tighten the restraining belt 8;
[0077] A thin film pressure sensor 16, wherein a plurality of thin film pressure sensors 16 are fixedly mounted on the lower wall of the restraint belt 8;
[0078] A controller 17, the controller 17 is fixedly arranged on a side wall of the slot seat plate 1;
[0079] Infrared recognition component, the infrared recognition component is arranged on one side above the slot seat plate 1;
[0080] The soothing component is arranged above the slot seat plate 1 and is used for soothing children.
[0081] Depend on Figure 1 , Figure 3 and Figure 5 It can be seen that the soothing component includes a base plate 20, a player 21, a mounting block 22 and a rattle 23. The base plate 20 is fixedly arranged on the upper wall of the slot seat plate 1, the mounting block 22 is fixedly arranged on the bottom wall of the player 21, and the rattle 23 is fixedly arranged on the upper wall of the player 21.
[0082] The inner side walls of the base plate 20 are rotatably connected with a rotating shaft 24, and the mounting block 22 is fixedly mounted on the outer wall of the rotating shaft 24. A second gear 25 is provided on one side of the base plate 20. One end of the rotating shaft 24 passes through the inner side wall of the base plate 20 and extends to the outer side, and is fixedly connected to one end of the second gear 25.
[0083] An internal threaded slot is provided on one side wall of the base plate 20, a screw rod 26 is movably connected inside the internal threaded slot, one end of the screw rod 26 is fixedly connected to a transverse shaft, a first gear 27 is rotatably connected to the outside of the transverse shaft, and a handle end 28 is fixedly connected to the end of the transverse shaft away from the screw rod 26, and the first gear 27 is meshed with the second gear 25.
[0084] As can be seen from the above, in order to comfort children during the blood drawing process, medical staff can adjust the angle of the player 21 according to the direction of the child's eyes, wherein the player 21 is used to play the animation content that children like to watch, so as to divert the child's attention. Further, the medical staff can adjust the angle by rotating the player 21. After the adjustment is completed, the medical staff drives the screw 26 to rotate by rotating the handle end 28, so that the first gear 27 is further squeezed and limited to the side wall of the bottom plate 20. Since the first gear 27 is meshed with the second gear 25, the player 21 is limited. In the process of rotating the player 21, the rattle 23 arranged above it makes a sound, thereby attracting the child's attention, further facilitating the child to watch the content in the player 21, thereby playing a soothing role.
[0085] The standard parts used in the present invention can all be purchased from the market, and the special-shaped parts can be customized according to the description and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.
[0086] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. "Multiple" means two or more, unless otherwise clearly and specifically defined.
[0087] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0088] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0089] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.
[0090] In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other.
[0091] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A pediatric blood drawing nursing device, characterized in that: include A slot seat plate (1), wherein an upper wall of the slot seat plate (1) is provided with a mounting slot, an arm supporting arc plate (2) is fixedly mounted inside the mounting slot, and a cavity is provided on one side wall of the slot seat plate (1); A disinfection component, the disinfection component is arranged below the arm support arc plate (2), and the disinfection component is installed in the cavity opening; A restraining belt (8), one end of which is fixedly connected to the inner wall of the arm supporting arc plate (2), and the outer wall of the restraining belt (8) is provided with a blood drawing port (15); A winding assembly, the winding assembly being arranged on one side of the slot seat plate (1) and being used for tightening the restraining belt (8); A thin film pressure sensor (16), wherein a plurality of the thin film pressure sensors (16) are fixedly mounted on the lower wall of the restraining belt (8); A controller (17), wherein the controller (17) is fixedly arranged on a side wall of the slot seat plate (1); An infrared recognition component, the infrared recognition component being arranged on one side above the slot seat plate (1); A soothing component is arranged above the slot seat plate (1) and is used to soothe a child.
2. A pediatric blood drawing nursing device according to claim 1, characterized in that: The arm supporting arc plate (2) is made of a transparent acrylic material.
3. A pediatric blood drawing nursing device according to claim 2, characterized in that: The disinfection component comprises a power-carrying slot plate (3), an ultraviolet lamp tube (4) and a power block (5); the power-carrying slot plate (3) and the power block (5) are fixedly mounted inside the cavity, and a plurality of the ultraviolet lamp tubes (4) are fixedly mounted on the upper wall of the power-carrying slot plate (3).
4. A pediatric blood drawing nursing device according to claim 3, characterized in that: A protective shell (6) is fixedly connected to one side wall of the slot seat plate (1), and a control switch (7) is fixedly installed inside the protective shell (6).
5. A pediatric blood drawing nursing device according to claim 1, characterized in that: The winding assembly comprises a fixed plate (9), a servo motor (10) and a winding shaft (11); the fixed plate (9) is fixedly arranged on a side wall of the slot seat plate (1); one end of the servo motor (10) is fixedly connected to a side wall of the fixed plate (9); the output end of the servo motor (10) is fixedly connected to one end of the winding shaft (11); a square opening is opened on one side wall of the slot seat plate (1); one end of the restraining belt (8) passes through the square opening and is fixedly connected to the outer wall of the winding shaft (11).
6. A pediatric blood drawing nursing device according to claim 5, characterized in that: The other end of the winding shaft (11) is fixedly connected to a round shaft (12), a side wall of the groove seat plate (1) is fixedly connected to a support plate (13), a side wall of the support plate (13) is fixedly connected to an adapter tube (14), one end of the adapter tube (14) is provided with a cavity, and the end of the round shaft (12) away from the winding shaft (11) passes through the cavity to rotate with the adapter tube (14).
7. A pediatric blood drawing nursing device according to claim 1, characterized in that: The infrared recognition component comprises an infrared sensor (18); the upper wall of the slot seat plate (1) is fixedly connected with a rack rod (19); the infrared sensor (18) is fixedly arranged on the rack rod (19); and the infrared sensor (18) is communicatively connected with a controller (17).
8. A pediatric blood drawing nursing device according to claim 1, characterized in that: The soothing component comprises a bottom plate (20), a player (21), a mounting block (22) and a rattle (23); the bottom plate (20) is fixedly arranged on the upper wall of the slot seat plate (1); the mounting block (22) is fixedly arranged on the bottom wall of the player (21); and the rattle (23) is fixedly arranged on the upper wall of the player (21).
9. A pediatric blood drawing nursing device according to claim 8, characterized in that: The inner side walls of the bottom plate (20) are rotatably connected to a rotating shaft (24), the mounting block (22) is fixedly mounted on the outer wall of the rotating shaft (24), a second gear (25) is provided on one side of the bottom plate (20), one end of the rotating shaft (24) passes through the inner side wall of the bottom plate (20) and extends to one side of the outside, and is fixedly connected to one end of the second gear (25).
10. A pediatric blood drawing nursing device according to claim 9, characterized in that: An internal threaded slot is provided on one side wall of the bottom plate (20), a screw rod (26) is movably connected inside the internal threaded slot, one end of the screw rod (26) is fixedly connected to a transverse shaft, the outside of the transverse shaft is rotatably connected to a first gear (27), one end of the transverse shaft away from the screw rod (26) is fixedly connected to a handle end (28), and the first gear (27) is meshed with the second gear (25).
Citation Information
Patent Citations
Pediatric blood drawing nursing device
CN114027837A
Cited By
Children blood extraction restraint device conforming to ergonomics
CN120501424A
