Cap opener for dialysis barrel
By designing an automated lid opener for dialysis barrels and using motors and sensors to monitor and control the lid opening process, the problem of medical staff injuries caused by the laborious manual opening of the dialysis barrel lid was solved, and safe and efficient lid opening was achieved.
Patent Information
- Application Number
- CN202422739059.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-11
- Publication Date
- 2025-09-30
- Estimated Expiration
- 2034-11-11
AI Technical Summary
In the existing technology, the dialysis fluid barrel cover is large in size and tightly sealed, which makes it difficult to open manually. This can easily cause sprains or bruises on the hands of medical staff. In addition, medical staff with less strength or injuries cannot open it normally, affecting its use and promotion.
A lid opener for dialysis barrels was designed. It uses a telescopic motor, a drive motor and an extrusion motor in conjunction with gears and gear rings to achieve automatic opening of the barrel lid through motor control. Pressure sensors and distance sensors are used to monitor the extrusion force and height changes to ensure a safe and effective opening process.
It reduces the labor intensity of medical staff in opening the dialysis fluid barrel cover, reduces the risk of hand contusion and sprain, adapts to the use of medical staff with different strengths, and improves the safety and convenience of operation.
Smart Images
Figure CN223397448U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of medical devices, and in particular to a cover opener for a dialysis bucket. Background Art
[0002] Hemodialysis is a form of renal replacement therapy for patients with acute and chronic renal failure. It involves draining blood from the body and passing it into a dialyzer composed of numerous hollow fibers. The blood then exchanges substances with a solution containing electrolytes similar to those in the body (dialysate) through diffusion and convection within and outside the fibers, thereby removing metabolic waste, maintaining electrolyte and acid-base balance, and removing excess water. The purified blood is then returned to the patient. Hemodialysis requires two types of dialysate: Liquid A and Liquid B. Dialysate is typically contained in a dialysate barrel with a lid. During use, dialysate is drawn from the barrel using a pipette connected to a pump.
[0003] Currently, medical staff use manual labor to open the lid of the dialysis fluid barrel. However, due to the large size and good tightness of the dialysis fluid barrel, manual opening is extremely laborious. Medical staff may easily suffer from hand sprains, hand contusions and other adverse conditions if they use too much force, which is not conducive to the health of medical staff. In addition, manual opening requires great force. Medical staff with less strength or injuries to their hands or wrists cannot open it normally, which is not conducive to its promotion and use. Utility Model Content
[0004] The present application provides a lid opener for a dialysis bucket to solve the technical problem that the inventors have recognized that medical personnel currently use manual labor to open the lid of a dialysis bucket. However, due to the large size and good tightness of the dialysis bucket, manual opening is extremely laborious, and excessive force applied by medical personnel can easily lead to adverse conditions such as sprains and contusions of the hands, which is not conducive to the health of medical personnel. In addition, manual opening requires great force, and medical personnel with less strength or injuries to their hands or wrists cannot open it normally, which is not conducive to popularization and use.
[0005] The present application provides a lid opener for a dialysis bucket, comprising a shell, wherein a through-hole and a groove are provided inside the shell, the through-hole and the groove are communicated with each other, a telescopic motor is provided inside the shell, the output end of the telescopic motor extends to the inside of the groove and is connected to a fixing plate, a driving motor is provided inside the connecting plate, the output end of the driving motor extends to the outside of the fixing plate and is connected to a gear, a limiting rod is provided at the bottom of the fixing plate, and the toothed ring is further provided, the toothed ring is located in the groove, the surface of the toothed ring meshes with the surface of the gear, a limiting groove is provided inside the toothed ring, the bottom of the limiting rod abuts against the inner wall of the limiting groove, an extrusion motor is provided inside the toothed ring, the output end of the extrusion motor extends to the inner cavity of the toothed ring and is connected to the extrusion plate, a controller is provided inside the shell, and the driving motor, the telescopic motor and the extrusion motor are all electrically connected to the controller.
[0006] In any of the above technical solutions, further, the inner cavity of the perforation is detachably connected to a fixing seat, the inner cavity of the fixing seat is provided with a piercing nail, the top of the piercing nail is provided with a push rod, the top of the push rod passes through the fixing seat and extends to the outside of the fixing seat, and a return spring is provided at the top of the piercing nail and outside the push rod.
[0007] In any of the above technical solutions, further, a distance sensor is provided inside the shell, the distance sensor monitors the distance between the top of the inner wall of the groove and the top of the fixing plate, and the distance sensor is electrically connected to the controller.
[0008] In any of the above technical solutions, further, a compression pad is provided on the other side of the compression plate, a pressure sensor is provided inside the compression pad, and the pressure sensor is electrically connected to the controller.
[0009] In any of the above technical solutions, further, an encoder is provided on the surface of the drive motor, and the encoder is electrically connected to the controller.
[0010] In any of the above technical solutions, further, a battery is provided inside the shell, and the battery is used to power the controller, the drive motor, the telescopic motor, the extrusion motor, the distance sensor, the pressure sensor and the encoder.
[0011] In any of the above technical solutions, further, a charging hole is opened on the surface of the shell.
[0012] In any of the above technical solutions, further, the surface of the shell and the surface of the fixing seat are both provided with anti-slip lines.
[0013] In any of the above technical solutions, further, a pressure plate is connected to the other end of the push rod and located outside the fixing seat.
[0014] In any of the above technical solutions, further, the pressing plate is made of elastic material.
[0015] The beneficial effects of this application are mainly:
[0016] 1. Place the barrel cover in the perforation in advance, then start the extrusion motor to make the extrusion plate squeeze the barrel cover until it is in close contact, then start the drive motor, and the gear and gear ring are continuously engaged to rotate the barrel cover. At the same time, due to the threaded connection between the barrel cover and the dialysis barrel, the height of the barrel cover will change during the rotation process. At this time, the telescopic motor changes the height of the fixed plate, thereby changing the height of the gear and gear ring and their connection structure, thereby satisfying the barrel cover opening action.
[0017] 2. Selectively connect the fixing seat and the shell according to the needs of use. After the barrel cover is removed, since a protective film is provided at the position of the liquid outlet of the dialysis barrel, the medical staff presses the pressure plate and uses the push rod to move the piercing nail toward the protective film, thereby puncturing the protective film, so that the medical staff can extract the dialysate in the dialysis barrel.
[0018] 3. The pressure sensor monitors the squeezing force of the extrusion plate on the barrel cover to ensure that the squeezing force is at the set threshold, so as to prevent the barrel cover from being unable to open due to the squeezing force being too low, and the barrel cover from being unable to open due to the squeezing force being too high, which will affect the service life of the barrel cover.
[0019] It should be understood that both the foregoing general description and the following detailed description are for purposes of illustration and description and are not necessarily limiting of the present application. The accompanying drawings, which are incorporated into and constitute a part of the specification, illustrate the subject matter of the present application. Together, the description and the drawings serve to explain the principles of the present application. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the specific implementation methods or the description of the prior art. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.
[0021] Figure 1 This is a schematic structural diagram of the cover opener according to an embodiment of the present application (front cross-sectional view);
[0022] Figure 2 This is a schematic diagram of the cover opener structure of an embodiment of the present application (front view);
[0023] Figure 3A schematic diagram of the gear ring and its internal structure in an embodiment of the present application (front cross-sectional view);
[0024] Figure 4 In the embodiment of this application Figure 1 A magnified schematic diagram of the structure at point A.
[0025] icon:
[0026] 100-housing; 101-perforation; 102-groove; 103-telescopic motor; 104-fixing plate; 105-driving motor; 106-gear; 107-limiting rod; 108-tooth ring; 109-limiting slot; 110-extrusion motor; 111-extrusion plate; 112-controller; 113-distance sensor; 114-extrusion pad; 115-pressure sensor; 116-encoder; 117-battery; 118-charging port; 200-fixing seat; 201-pin; 202-push rod; 203-reset spring; 204-pressure plate; 300-anti-slip texture. DETAILED DESCRIPTION
[0027] The technical solution of the present application will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.
[0028] Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of this application.
[0029] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this application and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0030] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.
[0031] See also Figure 1 、 Figure 2 、 Figure 3 and Figure 4 In one or more embodiments, a lid opener for a dialysis bucket is provided, comprising a housing 100, wherein a through-hole 101 and a groove 102 are provided inside the housing 100, wherein the through-hole 101 and the groove 102 are communicated with each other, wherein a telescopic motor 103 is provided inside the housing 100, wherein the output end of the telescopic motor 103 extends to the inside of the groove 102 and is connected to a fixing plate 104, wherein a driving motor 105 is provided inside the connecting plate, wherein the output end of the driving motor 105 extends to the outside of the fixing plate 104 and is connected to a gear 106, wherein a limiting rod 107 is provided at the bottom of the fixing plate 104, and further comprising a gear ring 108, wherein the gear ring 108 Located in the groove 102, the surface of the gear ring 108 is meshed with the surface of the gear 106, and a limiting groove 109 is provided inside the gear ring 108. The bottom of the limiting rod 107 abuts against the inner wall of the limiting groove 109. An extrusion motor 110 is provided inside the gear ring 108, and the output end of the extrusion motor 110 extends to the inner cavity of the gear ring 108 and is connected to an extrusion plate 111. A controller 112 is provided inside the shell 100, and the drive motor 105, the telescopic motor 103, and the extrusion motor 110 are all electrically connected to the controller 112. The surface of the shell 100 and the surface of the fixing seat 200 are both provided with anti-slip grooves 300.
[0032] In this embodiment, the barrel cover is placed in the perforation 101 in advance, and then the squeezing motor 110 is started to make the squeezing plate 111 squeeze the barrel cover until it is in close contact, and then the driving motor 105 is started, and the gear 106 and the gear ring 108 are continuously engaged to rotate the barrel cover. At the same time, due to the threaded connection between the barrel cover and the dialysis barrel, the height of the barrel cover will change during the rotation process. At this time, the telescopic motor 103 changes the height of the fixed plate 104, thereby changing the height change of the gear 106 and the gear ring 108 and their connection structure, thereby satisfying the barrel cover opening action; during the operation, the doctor The medical staff only needs to ensure that the positions of the shell 100 and the dialysate barrel are fixed, which greatly reduces the force required by the medical staff, thereby reducing the probability of hand contusion and hand sprain. At the same time, the setting of the anti-slip pattern 300 reduces the probability of slipping when the hand grips the shell 100; the limit rod 107 adopts an inverted T-shaped structure, and the inner wall of the limit groove 109 matches the bottom shape of the limit rod 107. During the rotation of the gear ring 108, the limit rod 107 will abut against the limit grooves 109 at different positions, thereby ensuring that the height of the gear ring 108 changes stably and the gear ring 108 will not be misplaced during the rotation process.
[0033] See also Figure 1 and Figure 2In some embodiments, the inner cavity of the through hole 101 is detachably connected to the fixing seat 200, the inner cavity of the fixing seat 200 is provided with a through nail 201, and the top of the through nail 201 is provided with a push rod 202. The top of the push rod 202 passes through the fixing seat 200 and extends to the outside of the fixing seat 200. A return spring 203 is provided at the top of the through nail 201 and located on the outside of the push rod. The other end of the push rod 202 is connected to the outside of the fixing seat 200 and is located on the outside of the fixing seat 200. A pressure plate 204 is used. The pressure plate 204 is made of elastic material, and the surface of the shell 100 and the surface of the fixing seat 200 are both provided with anti-slip grooves 300.
[0034] In this embodiment, the connection between the fixing seat 200 and the shell 100 is selectively adjusted according to the needs of use. After the barrel cover is removed, since a protective film is provided at the position of the liquid outlet of the dialysis barrel, the medical staff presses the pressure plate 204 and uses the push rod 202 to move the piercing nail 201 toward the protective film, thereby piercing the protective film to facilitate the medical staff to extract the dialysate in the dialysis barrel. During this process, the return spring 203 is in a stretched state. When the medical staff does not press the pressure plate 204, the piercing nail 201 is restored to the starting position under the action of the rebound force of the return spring 203; the setting of the anti-slip pattern 300 increases the friction when the medical staff holds the fixing seat 200 tightly, reducing the probability of slipping; according to actual use needs, the push rod 202, the return spring 203, and the pressure plate 204 can be replaced with an electric implementation method; the size model of the piercing nail 201 is adjusted according to actual conditions.
[0035] See also Figure 1 、 Figure 2 、 Figure 3 and Figure 4 In some embodiments, a distance sensor 113 is provided inside the shell 100. The distance sensor 113 monitors the distance between the top of the inner wall of the groove 102 and the top of the fixed plate 104. The distance sensor 113 is electrically connected to the controller 112. A compression pad 114 is provided on the other side of the compression plate 111. A pressure sensor 115 is provided inside the compression pad 114. The pressure sensor 115 is electrically connected to the controller 112. An encoder 116 is provided on the surface of the drive motor 105. The encoder 116 is electrically connected to the controller 112. A battery 117 is provided inside the shell 100. The battery 117 is used to power the controller 112, the drive motor 105, the telescopic motor 103, the extrusion motor 110, the distance sensor 113, the pressure sensor 115 and the encoder 116. A charging hole 118 is provided on the surface of the shell 100.
[0036] In this embodiment, the pressure sensor 115 monitors the squeezing force of the squeezing plate 111 on the bucket cover to ensure that the squeezing force is within the set threshold value, so as to prevent the bucket cover from being opened due to the squeezing force being too low, and the bucket cover from being opened due to the squeezing force being too high. The encoder 116 monitors the direction, number of turns and angle of the driving shaft of the driving motor 105, and the number of teeth on the surface of the gear 106 and the gear ring 108 are in proportional relationship, that is, the gear 106 rotates one turn to fix the rotation angle of the gear ring 108. Due to the threaded relationship between the dialysis bucket and the bucket cover, the bucket cover can be removed after a specific number of turns, and the height change of the bucket cover after one turn is fixed. Therefore, by monitoring the driving motor 105, the encoder 116 can monitor the direction, number of turns and angle of the driving shaft of the driving motor 105, and the number of teeth on the surface of the gear 106 and the gear ring 108 are in proportional relationship. While the motor 105 rotates a certain number of times, the telescopic motor 103 cooperates to realize the height of the fixed plate 104, thereby changing the height change of the gear 106, the gear ring 108 and their connecting structure to ensure the removal of the barrel cover, wherein the distance sensor 113 effectively monitors the distance from the fixed plate 104 to the top of the inner wall of the groove 102, thereby monitoring the height change of the gear 106, the gear ring 108 and their connecting structure; the battery 117 can power the controller 112, the drive motor 105, the telescopic motor 103, the extrusion motor 110, the distance sensor 113, the pressure sensor 115 and the encoder 116, and the charging port 118 can power the battery 117.
[0037] It should be noted that the specific models and specifications of the battery 117, controller 112, drive motor 105, telescopic motor 103, extrusion motor 110, distance sensor 113, pressure sensor 115 and encoder 116 in the present disclosure need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail; its power supply and principles are clear to those skilled in the art and will not be described in detail here; the connection and installation of its various parts and the signal transmission principles are well known in the art.
[0038] Specifically, the working principle of the dialysis bucket lid opener provided in this application is:
[0039] The bucket cover is placed in the perforation 101 in advance, and then the squeezing motor 110 is started to make the squeezing plate 111 squeeze the bucket cover until it is in close contact. Then the drive motor 105 is started, and the gear 106 and the gear ring 108 are continuously engaged to rotate the bucket cover. At the same time, due to the threaded connection between the bucket cover and the dialysis bucket, the height of the bucket cover changes during the rotation process. At this time, the telescopic motor 103 changes the height of the fixed plate 104, thereby changing the height of the gear 106 and the gear ring 108 and their connection structure, thereby satisfying the bucket cover opening action;
[0040] The connection between the fixing seat 200 and the shell 100 is selectively adjusted according to the needs of use. After the barrel cover is removed, since a protective film is provided at the position of the liquid outlet of the dialysis barrel, the medical staff presses the pressure plate 204 and uses the push rod 202 to move the piercing nail 201 toward the protective film, thereby piercing the protective film to facilitate the medical staff to extract the dialysate in the dialysis barrel. During this process, the reset spring 203 is in a stretched state. When the medical staff does not press the pressure plate 204, the piercing nail 201 is restored to the starting position under the action of the rebound force of the reset spring 203.
[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.
Claims
1. A cover opener for a dialysis bucket, characterized in that: It includes a shell, the interior of the shell is provided with a through hole and a groove, the through hole and the groove are communicated, a telescopic motor is provided inside the shell, the output end of the telescopic motor extends to the interior of the groove and is connected to a fixed plate, a driving motor is provided inside the connecting plate, the output end of the driving motor extends to the outside of the fixed plate and is connected to a gear, a limiting rod is provided at the bottom of the fixed plate, and also includes a gear ring, the gear ring is located in the groove, the surface of the gear ring is meshed with the surface of the gear, a limiting groove is provided inside the gear ring, the bottom of the limiting rod abuts against the inner wall of the limiting groove, an extrusion motor is provided inside the gear ring, the output end of the extrusion motor extends to the inner cavity of the gear ring and is connected to the extrusion plate, a controller is provided inside the shell, and the driving motor, the telescopic motor and the extrusion motor are all electrically connected to the controller.
2. A dialysis bucket cover opener according to claim 1, characterized in that: The inner cavity of the perforation is detachably connected to a fixing seat, the inner cavity of the fixing seat is provided with a through nail, the top of the through nail is provided with a push rod, the top of the push rod passes through the fixing seat and extends to the outside of the fixing seat, and a return spring is provided at the top of the through nail and outside the push rod.
3. A dialysis bucket cover opener according to claim 1, characterized in that: A distance sensor is provided inside the housing, and the distance sensor monitors the distance between the top of the inner wall of the groove and the top of the fixing plate. The distance sensor is electrically connected to the controller.
4. A dialysis bucket cover opener according to claim 3, characterized in that: A compression pad is provided on the other side of the compression plate, a pressure sensor is provided inside the compression pad, and the pressure sensor is electrically connected to the controller.
5. A dialysis bucket cover opener according to claim 4, characterized in that: An encoder is provided on the surface of the driving motor, and the encoder is electrically connected to the controller.
6. A dialysis bucket cover opener according to claim 5, characterized in that: A battery is provided inside the housing, and the battery is used to supply power to the controller, the driving motor, the telescopic motor, the extrusion motor, the distance sensor, the pressure sensor and the encoder.
7. A dialysis bucket cover opener according to claim 6, characterized in that: A charging hole is provided on the surface of the shell.
8. A dialysis bucket cover opener according to claim 2, characterized in that: The surface of the shell and the surface of the fixing seat are both provided with anti-slip patterns.
9. A dialysis bucket cover opener according to claim 2, characterized in that: The other end of the push rod is located outside the fixing seat and is connected with a pressing plate.
10. A dialysis bucket cover opener according to claim 9, characterized in that: The pressing plate is made of elastic material.