Electrocardiogram suction ball suction cup device with adjustable negative pressure suction function
By introducing adjustment balls and piston components into the electrocardiogram suction balls, the adjustability of negative pressure is achieved, and the applicability problem caused by the inadequate negative pressure in the prior art is solved, and the applicability and detection accuracy of the electrocardiogram suction balls are improved.
Patent Information
- Application Number
- CN202420895955.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-28
- Publication Date
- 2025-02-21
- Estimated Expiration
- 2034-04-28
AI Technical Summary
The negative pressure of the existing electrocardiogram suction ball is unadjustable, which is not suitable for patients with different physical states, which may cause loose suction cups or excessive suction force to cause skin damage.
An adjustable negative pressure suction electrocardiogram suction cup device is designed. By setting an adjustment ball and a piston assembly in the rubber suction ball, the piston rod is used to push the piston movement, changing the volume of the adjustment ball, thereby adjusting the negative pressure size.
The suction force of the suction cup is adjusted according to different body states, avoiding skin damage caused by loose suction cups or excessive suction force, and ensuring the accuracy of the electrocardiogram detection data.
Smart Images
Figure CN222510399U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electrocardiogram equipment, in particular to an electrocardiogram suction ball and cup device with adjustable negative pressure attraction. Background Art
[0002] The electrocardiograph can automatically record the electrocardiograph signals generated by the myocardial excitation during cardiac activity. It is a medical electronic instrument commonly used in clinical diagnosis and scientific research. When performing an electrocardiograph examination using an electrocardiograph, limb motor clamps and an electrocardiograph suction ball are required. The electrocardiograph suction ball is a tool placed on the surface of the patient's skin for signal collection. It is composed of a negative pressure rubber suction ball and a metal suction cup. When in use, after connecting the electrocardiograph suction ball to the lead wire, pinch the rubber suction ball with your hands, and use the negative pressure generated by the rubber suction ball to make the suction cup adhere to the skin surface.
[0003] The following problems are prone to occur during the use of the ECG suction ball of the prior art: since the volume of the rubber suction ball is fixed, the negative pressure generated by squeezing it is always the same, and for patients with different physical conditions, such as thin children with low body fat percentage and elderly people with loose skin, the negative pressure suction ball may not be adsorbed on the skin surface or may not be adsorbed tightly, resulting in loosening and falling, which in turn affects the accuracy of the ECG detection data; and for patients with high body fat percentage or sensitive skin, when the suction cup is adsorbed on the skin, it is easy to produce bruises and congestion pain due to excessive negative pressure. Therefore, the ECG suction ball of the prior art is not suitable for patients with different physical conditions. Utility Model Content
[0004] The utility model aims to provide an electrocardiogram suction ball and cup device with adjustable negative pressure suction. The existing electrocardiogram suction ball has the technical problem of being unsuitable for patients with different physical conditions due to the non-adjustable pressure of the suction ball.
[0005] The utility model adopts the following technical scheme: an electrocardiogram suction ball suction cup device with adjustable negative pressure suction, which comprises a rubber suction ball, a metal suction cup is fixed on the bottom end of the rubber suction ball, a connector is fixedly connected to the side wall of the metal suction cup, a wire for connecting to an electrocardiograph is connected to the connector, an adjusting ball is fixedly connected to the inside of the rubber suction ball, the adjusting ball is a hollow elastic structure, an adjusting mechanism for adjusting the volume of the adjusting ball is connected to the adjusting ball, the adjusting mechanism comprises a connecting pipe and a piston assembly, one end of the connecting pipe is fixedly connected to the side wall of the adjusting ball and communicated with the inner cavity of the adjusting ball, the other end of the connecting pipe passes through the rubber suction ball and is connected to the piston assembly, the connecting pipe is sealed with the wall surface of the rubber suction ball, the piston assembly comprises a piston shell, a piston and a piston rod, the connecting pipe is communicated with the inner cavity of the piston shell, the piston sliding seal is assembled in the piston shell, one end of the piston rod is fixedly connected to the piston, and the other end is located outside the piston shell, and the piston rod and the connecting pipe are respectively located on both sides of the piston.
[0006] A fixing plate is provided on the end of the piston shell away from the connecting pipe, and a long hole is opened on the fixing plate for the piston rod to pass through. A clamping block is fixed on the piston rod, and the clamping blocks are evenly arranged along the extension direction of the piston rod. When the piston rod pushes the piston to move, the clamping block passes through the long hole. After the piston rod rotates 90°, the clamping block is engaged with the fixing plate.
[0007] The clamping blocks are symmetrically arranged in two rows on the piston rod.
[0008] The distance between two adjacent blocks in the same column is equal to the wall thickness of the fixed plate.
[0009] The long hole comprises a central hole and through slots symmetrically arranged on both sides of the central hole. The piston rod passes through the central hole, and the clamping block is used to pass through the through slots.
[0010] The edges of the clamping block and the side walls on both sides of the through slot are all rounded structures.
[0011] The piston is a rubber plug; a handle is fixedly connected to one end of the piston rod outside the piston shell.
[0012] The adjusting ball is connected to the top position inside the rubber suction ball.
[0013] The connecting pipe is a rubber hose.
[0014] The connector is plug-connected with the wire.
[0015] The beneficial effects of the utility model are as follows: the utility model arranges an adjusting ball in the rubber suction ball, changes the volume of the adjusting ball through an adjusting mechanism, and utilizes the movement of the piston in the piston assembly to achieve the change in the size of the adjusting ball, thereby changing the size of the negative pressure generated after squeezing the rubber suction ball, so as to adapt to patients with different physical conditions and avoid the situation where it is difficult to adsorb and becomes loose, thereby affecting the detection effect, or the adsorption force is too large, thereby causing damage to the patient's skin.
[0016] For patients with a high body fat percentage or sensitive skin, pushing the piston rod drives the piston to move along the inner wall of the piston shell toward the adjusting ball. The inside of the adjusting ball expands due to pressure, and as the volume of the adjusting ball increases, the internal space of the rubber suction ball decreases accordingly. At this time, the negative pressure generated by squeezing the rubber suction ball will also decrease accordingly, thereby reducing the suction force of the metal suction cup to prevent the patient's skin from being damaged by excessive suction. For thin children with a low body fat percentage and elderly people with loose skin, pulling the piston rod drives the piston to move away from the adjusting ball. The internal pressure of the adjusting ball decreases and its volume decreases. The negative pressure generated by squeezing the rubber suction ball will increase accordingly, thereby increasing the adsorption force of the metal suction cup on the skin surface, avoiding the situation where the adsorption is not tight and the ball becomes loose and falls, thereby ensuring the accuracy of the ECG detection data.
[0017] Preferably, a clamping block is provided on the piston rod, and when the moving position of the piston rod is determined, the piston rod is rotated to make the clamping block engage with the fixing plate of the piston shell, thereby fixing the piston rod to ensure the stability of the adjusting ball after adjusting the volume.
[0018] Preferably, the two rows of piston rods are symmetrically distributed, which makes the limiting of the piston rods more stable.
[0019] Preferably, the distance between two adjacent clamping blocks is equal to the wall thickness of the fixed plate, and both sides of the fixed plate can be engaged with the clamping blocks, so that the position of the piston rod is more stable.
[0020] Preferably, when the piston rod moves, the block can move freely through the through slot.
[0021] Preferably, the edges of the side walls of the clamping block and the through slot are designed with rounded edges, so that the clamping block and the through slot can be rotated along the rounded edges to intersect to achieve limited fixation.
[0022] Preferably, the piston is a rubber plug, and when the piston moves, it can always seal with the inner wall of the piston shell to ensure sealing.
[0023] Preferably, the handle at the end of the piston rod facilitates the push-pull movement of the piston rod.
[0024] Preferably, the adjusting ball is located at the top center of the rubber suction ball, so that the medical staff can squeeze and flatten the rubber suction ball from both sides. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 This is a structural schematic diagram of an electrocardiogram suction ball and suction cup device with adjustable negative pressure suction according to an embodiment of the utility model;
[0026] Figure 2 for Figure 1 A cross-sectional view of
[0027] Figure 3 for Figure 1 The enlarged view of point A in the middle;
[0028] Figure 4 for Figure 1 Schematic diagram of the piston rod.
[0029] Notes on the figure numbers: 1. rubber suction ball; 2. metal suction cup; 3. connector; 4. wire; 5. adjusting ball; 6. connecting tube; 7. piston shell; 8. piston; 9. piston rod; 10. handle; 11. block; 12. through groove. DETAILED DESCRIPTION
[0030] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.
[0031] The specific structure of the electrocardiogram suction ball suction cup device with adjustable negative pressure suction in one embodiment of the utility model is as follows Figures 1 to 4 As shown, the adjustable negative pressure suction electrocardiogram suction ball suction cup device of this embodiment includes a rubber suction ball 1, a metal suction cup 2 is fixed to the bottom end of the rubber suction ball 1, a connector 3 is fixedly connected to the side wall of the metal suction cup 2, a wire 4 for connecting to the electrocardiograph is connected to the connector 3, and the connector 3 is plug-connected to the wire 4.
[0032] The rubber suction ball 1 is fixedly connected with an adjusting ball 5, which is a hollow elastic structure and connected to the top position inside the rubber suction ball 1. The adjusting ball 5 is connected with an adjusting mechanism for adjusting the volume of the adjusting ball, and the adjusting mechanism includes a connecting pipe 6 and a piston assembly. The connecting pipe 6 adopts a rubber hose, one end of which is fixedly connected to the side wall of the adjusting ball 5 and communicates with the inner cavity of the adjusting ball, and the other end of the connecting pipe 6 passes through the rubber suction ball 1 and is connected to the piston assembly. The connecting pipe 6 is sealed with the wall of the rubber suction ball 1. The piston assembly includes a piston shell 7, a piston 8 and a piston rod 9. The connecting pipe 6 is connected with the inner cavity of the piston shell 7, and the piston 8 is slidingly sealed and assembled in the piston shell 7. One end of the piston rod 9 is fixedly connected to the piston 8 and the other end is located outside the piston shell 7. The piston rod 9 and the connecting pipe 6 are respectively located on both sides of the piston 8. The piston 8 adopts a rubber plug; a handle 10 is fixedly connected to the end of the piston rod 9 located outside the piston shell 7.
[0033] A fixing plate is provided on the end of the piston shell 7 away from the connecting tube 6, and a long hole is provided on the fixing plate for the piston rod to pass through. A clamping block 11 is fixed on the piston rod 9, and the clamping block 11 is evenly arranged along the extension direction of the piston rod 9. When the piston rod 9 pushes the piston 8 to move, the clamping block 11 passes through the long hole. After the piston rod 9 rotates 90°, the clamping block 11 is engaged with the fixing plate. The clamping blocks 11 are symmetrically arranged in two rows on the piston rod 9. The spacing between two adjacent clamping blocks 11 in the same row is equal to the wall thickness of the fixing plate. The long hole includes a center hole and through grooves 12 symmetrically arranged on both sides of the center hole. The piston rod 9 passes through the center hole, and the clamping block 11 is used to pass through the through groove 12. The edges of the side walls of the clamping block 11 and the through groove 12 are both rounded structures.
[0034] The utility model has an adjusting ball 5 fixedly connected to the inner wall of the rubber suction ball 1. By changing the size of the adjusting ball 5, the size of the negative pressure generated when squeezing the rubber suction ball 1 can be changed. The adjusting ball 5 is located at the top center of the rubber suction ball 1, so that the medical staff can squeeze it from both sides of the rubber suction ball 1. The volume of the adjusting ball 5 can be changed by the adjusting mechanism. The connecting tube 6 is fixedly connected to the side wall of the adjusting ball 5. The connecting rubber hose 6 penetrates to the outside of the rubber suction ball 1, and the outer wall of the part of the connecting rubber hose 6 that penetrates the rubber suction ball 1 is fixedly connected to the rubber suction ball 1 to ensure the sealing of the rubber suction ball 1. The connecting rubber hose 6 is located on one side of the rubber suction ball 1 and is provided with a piston assembly. By pushing and pulling the piston rod, the pressure in the adjusting ball is changed, thereby changing the volume of the adjusting ball to achieve the adjustment of the negative pressure generated on the rubber suction ball 1. After the position of the piston rod is determined, the piston rod is rotated to make the block engage with the fixed plate of the piston shell, thereby achieving the fixation of the piston rod to ensure the stability of the adjusting ball after adjusting the volume. When the piston rod moves, the block 11 can move freely through the through slot 12. The edges of the side walls of the block 11 and the through slot 12 are designed with rounded edges, so that the block 11 and the through slot 12 can rotate along the rounded edges to intersect to achieve limited fixation.
[0035] When the present embodiment is in use, the medical staff can first rotate the handle 10 by 90° to drive the piston rod 9 to rotate synchronously, and the two rows of blocks 11 on the piston rod 9 will change from horizontal distribution to vertical distribution, so that the blocks 11 can move through the through slots 12 at the upper and lower ends of the long hole. When the handle 10 is pushed to make the piston rod 9 drive the piston 8 to move to the left along the inner wall of the piston shell 7, the volume of the communicating space between the adjusting ball 5, the connecting pipe 6 and the inside of the piston shell 7 located on the left side of the piston 8 is reduced, and the pressure in the adjusting ball 5 increases and the ball will expand and become larger. As the volume of the adjusting ball 5 increases, the internal space of the rubber suction ball 1 is reduced accordingly. At this time, the negative pressure generated by squeezing the rubber suction ball 1 will also be reduced accordingly, so that the metal suction cup 2 can be It is suitable for patients with high body fat percentage or sensitive skin to prevent excessive suction from causing skin damage to the patient; similarly, when the moving block 10 is pulled so that the piston rod 9 drives the piston 8 to move to the right, the negative pressure generated by squeezing the rubber suction ball 1 will increase accordingly to adapt to thin children with low body fat percentage and elderly people with loose skin, enhance the adsorption force of the metal suction cup 2 on their skin surface, avoid loosening and falling due to loose adsorption, and then ensure the accuracy of the ECG detection data; after adjusting the size of the adjustment ball 5 to a suitable size, rotate the handle 10 90° again, and the two columns of card blocks 11 on the piston rod 9 return to horizontal distribution and snap on both sides of the fixed plate of the piston shell 7, thereby ensuring the stability after adjustment. The utility model device can be suitable for patients with different physical conditions, so that the versatility of the ECG suction ball device is improved.
[0036] It should be noted that: although the rubber suction ball 1 is elastic, since the rubber suction ball 1 has a certain thickness, when the volume of the adjustment ball 5 changes, it has no effect on the volume of the rubber suction ball 1, and the volume of the rubber suction ball 1 itself does not change.
[0037] The above is only a specific implementation of the present invention, but the protection scope of the present invention is not limited thereto. Any technician in the technical field can easily think of changes or substitutions within the technical scope disclosed in this disclosure, which should be included in the scope of protection required by the present invention.
Claims
1. An adjustable negative pressure suction electrocardiogram suction ball and cup device, comprising a rubber suction ball (1), a metal suction cup (2) fixed to the bottom end of the rubber suction ball (1), a connector (3) fixedly connected to the side wall of the metal suction cup (2), a wire (4) for connecting to an electrocardiograph connected to the connector (3), characterized in that: An adjusting ball (5) is fixedly connected to the inside of the rubber suction ball (1). The adjusting ball (5) is a hollow elastic structure. An adjusting mechanism for adjusting the volume of the adjusting ball is connected to the adjusting ball (5). The adjusting mechanism comprises a connecting pipe (6) and a piston assembly. One end of the connecting pipe (6) is fixedly connected to the side wall of the adjusting ball (5) and communicates with the inner cavity of the adjusting ball. The other end of the connecting pipe (6) passes through the rubber suction ball (1) and is connected to the piston assembly. The connecting pipe (6) is in sealing cooperation with the wall surface of the rubber suction ball (1). The piston assembly comprises a piston shell (7), a piston (8) and a piston rod (9). The connecting pipe (6) is in communication with the inner cavity of the piston shell (7). The piston (8) is slidingly and sealingly assembled in the piston shell (7). One end of the piston rod (9) is fixedly connected to the piston (8) and the other end is located outside the piston shell (7). The piston rod (9) and the connecting pipe (6) are respectively located on both sides of the piston (8).
2. The adjustable negative pressure suction electrocardiogram suction ball suction cup device according to claim 1, characterized in that: A fixing plate is provided on one end of the piston housing (7) away from the connecting pipe (6), and a long hole is provided on the fixing plate for the piston rod to pass through. A clamping block (11) is fixed on the piston rod (9), and the clamping blocks (11) are evenly arranged along the extending direction of the piston rod (9). When the piston rod (9) pushes the piston (8) to move, the clamping block (11) passes through the long hole. After the piston rod (9) rotates 90 degrees, the clamping block (11) is clamped on the fixing plate.
3. The adjustable negative pressure suction electrocardiogram suction ball suction cup device according to claim 2 is characterized in that: The clamping blocks (11) are symmetrically arranged in two rows on the piston rod (9).
4. The adjustable negative pressure suction electrocardiogram suction ball suction cup device according to claim 3 is characterized in that: The distance between two adjacent blocks (11) in the same column is equal to the wall thickness of the fixing plate.
5. The adjustable negative pressure suction electrocardiogram suction ball suction cup device according to claim 2, characterized in that: The long hole comprises a central hole and through slots (12) symmetrically arranged on both sides of the central hole; the piston rod (9) passes through the central hole; and the clamping block (11) is used to pass through the through slots (12).
6. The adjustable negative pressure suction electrocardiogram suction ball suction cup device according to claim 5, characterized in that: The edges of the side walls of the clamping block (11) and the through slot (12) are both rounded edge structures.
7. The adjustable negative pressure suction electrocardiogram suction ball suction cup device according to claim 1, characterized in that: The piston (8) is a rubber stopper; and a handle (10) is fixedly connected to one end of the piston rod (9) located outside the piston housing (7).
8. The adjustable negative pressure suction electrocardiogram suction ball suction cup device according to claim 1, characterized in that: The adjusting ball (5) is connected to the top position inside the rubber suction ball (1).
9. The adjustable negative pressure suction electrocardiogram suction ball suction cup device according to claim 1, characterized in that: The connecting pipe (6) is a rubber hose.
10. The adjustable negative pressure suction electrocardiogram suction ball suction cup device according to claim 1, characterized in that: The connector (3) is plug-connected to the wire (4).