Cardio-pulmonary resuscitation pressure multi-point detection structure

Abstract

The utility model relates to the technical field of medical instruments, and discloses a cardio-pulmonary resuscitation pressure multi-point detection structure which comprises a base on which a plurality of force sensors are arranged; the pressing main body is arranged on the bearing frame, a pressing head on the pressing main body is arranged below the bearing frame, and the pressing main body is connected with the force measuring sensor through the bearing frame. According to the utility model, the bearing frame is connected with the plurality of force sensors, multi-point support is formed for the pressing main body, the pressure of each supporting point can be detected through the plurality of force sensors, multi-point measurement is realized, measurement errors caused by non-uniform stress of the pressing head are avoided, and the measurement accuracy is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field more specifically, the utility model relates to a kind of heart-lung resuscitation pressure multi-point detection structure. BACKGROUND

[0002] Heart-lung resuscitation machine is to replace artificial execution chest compression with mechanical action, and through the reciprocating motion of control pressing head, so that it is contacted with human chest compression operation.

[0003] The heart-lung resuscitation machine with pressure detection function on the market usually only integrates single pressure sensor inside pressing head, since the body contour is not a standard plane, and the individual difference of human body is obvious, it is difficult to make pressing head completely adhere to human surface, so when pressing head presses human body, pressing head will be unevenly stressed, leading to the deviation between the pressure measured by pressure sensor and the actual pressing pressure of pressing head on human body, and the accuracy is low.

[0004] Therefore, it is necessary to provide a kind of heart-lung resuscitation pressure multi-point detection structure to at least partially solve the problems in the prior art. SUMMARY

[0005] A series of simplified concepts are introduced in the summary section, which will be further described in detail in the specific embodiment section. The summary section of the utility model does not mean to try to limit the key features and necessary technical features of the claimed technical solution, and does not mean to try to determine the protection scope of the claimed technical solution.

[0006] To at least partially solve the above problems, the utility model provides a kind of heart-lung resuscitation pressure multi-point detection structure, comprising: base, a plurality of force sensors are arranged on it;Pressing main body is arranged on support frame, the pressing head on the pressing main body is below support frame, and the pressing main body is connected with force sensor through support frame.

[0007] Preferably, a center mounting point and a plurality of outer mounting points are provided on the force sensor, the outer mounting points are connected with the base, and the center mounting point is connected with the support frame.

[0008] Preferably, a groove for supporting the pressing main body is provided on the support frame, the pressing main body is connected with the bottom surface of the groove, and a plurality of mounting plates corresponding to the force sensor are provided on the outer side of the support frame.

[0009] Preferably, a first through hole is provided on the base, which can pass through the bottom of the support frame, and a gap distance is formed between the side surface of the support frame and the inner side of the first through hole.

[0010] Preferably, the number of the plurality of force sensors is even, and the distance from two force sensors in opposite directions to the axis of the pressing head is equal.

[0011] Preferably, the pressing body comprises a cylinder connected with the support frame, the cylinder is internally provided with a pressing rod capable of reciprocating in the axial direction, and the pressing head is arranged at the end of the pressing rod.

[0012] Preferably, the bottom of the cylinder is connected with a groove body, and the bottom surface of the groove body is provided with a second through hole capable of allowing the pressing rod to pass through.

[0013] Preferably, the bottom surface of the mounting plate is provided with a first fixing column corresponding to the central mounting point, and the base is provided with a second fixing column corresponding to the outer mounting point.

[0014] Preferably, the central mounting hole is arranged at the central mounting point, the first threaded hole is arranged on the first fixing column, and the central mounting hole and the first threaded hole are connected through the first screw; the outer mounting hole is arranged at the outer mounting point, the second threaded hole is arranged on the second fixing column, and the outer mounting hole and the second threaded hole are connected through the second screw.

[0015] Preferably, the inner side of the bottom of the second through hole is provided with a supporting plate, the top of the second through hole is provided with a top ring plate extending upward, the guiding cylinder is arranged in the second through hole, the guiding cylinder is arranged above the supporting plate, the top of the guiding cylinder and the top ring plate is provided with a buffer pad, and the inner side of the bottom of the cylinder is provided with a stepped surface abutting against the buffer pad.

[0016] Compared with the prior art, the utility model at least has following beneficial effects:

[0017] The cardiopulmonary resuscitation pressure multi-point detection structure is connected with the plurality of force sensors through the support frame, forms multi-point support to the pressing body, can detect the pressure of each support point through the plurality of force sensors, realizes multi-point measurement, avoids the measurement error caused by uneven force of the pressing head, and improves the measurement accuracy.

[0018] The cardiopulmonary resuscitation pressure multi-point detection structure, other advantages, objects and features of the utility model will be partly embodied through the following description, and will be partly understood by the person skilled in the art through the research and practice of the utility model. DETAILED DESCRIPTION

[0019] The accompanying drawings are intended to provide further understanding of the utility model and form part of the specification, together with the embodiments of the utility model, for explaining the utility model, and do not constitute limitation to the utility model. In the drawings:

[0020] Figure 1This is a schematic diagram of the cardiopulmonary resuscitation pressure multi-point detection structure described in this utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of the cardiopulmonary resuscitation pressure multi-point detection structure described in this utility model;

[0022] Figure 3 This is a schematic diagram of the support frame in the cardiopulmonary resuscitation pressure multi-point detection structure of this utility model;

[0023] Figure 4 This is an exploded structural diagram of the support frame, force sensor, and base in the cardiopulmonary resuscitation pressure multi-point detection structure described in this utility model.

[0024] Figure 5 This is a schematic diagram of the force sensor in the cardiopulmonary resuscitation pressure multi-point detection structure of this utility model;

[0025] Figure 6 This is a schematic diagram of the connection between the pressing rod, cylinder, and support frame in the cardiopulmonary resuscitation pressure multi-point detection structure of this utility model.

[0026] Figure 7 This is a cross-sectional schematic diagram of the cardiopulmonary resuscitation pressure multi-point detection structure described in this utility model. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments, so that those skilled in the art can implement it based on the description.

[0028] It should be understood that terms such as “having,” “comprising,” and “including” as used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0029] like Figure 1 and Figure 2 As shown, this utility model provides a multi-point detection structure for cardiopulmonary resuscitation pressure, including: a base 1 on which multiple force sensors 2 are arranged; a pressing body 4 disposed on a support frame 3, wherein the pressing head 5 on the pressing body 4 is disposed below the support frame 3, and the pressing body 4 is connected to the force sensors 2 through the support frame 3.

[0030] The base 1 is used to be fixed with the base frame of the cardiopulmonary resuscitation machine, and the support frame 3 is used to support the pressing body 4. After the pressing head 5 is pressed to contact the human body, the reaction force formed by the human body on the pressing head 5 is transmitted to the pressing body 4, and the pressing body 4 is connected with the force sensor 2 through the support frame 3, so that the plurality of force sensors 2 connected with the support frame 3 are subjected to tension or pressure, and can output an electric signal to measure a plurality of pressure values. The effective pressing force formed by the pressing head 5 on the human body can be obtained through the plurality of pressure values. If the reaction force formed by the human body on the pressing head 5 forms a certain angle with the vertical direction, the pressure detected by the plurality of force sensors 2 will change, and the plurality of pressure values measured by the plurality of force sensors 2 can obtain the actual reaction force of the human body on the pressing head 5 in the vertical direction.

[0031] The pressing is divided into two stages, the highest point is pressed downward as an acceleration stage, and the last stage of pressing is a deceleration stage. In the last stage of pressing, the calculation of the vertical pressing force is the sum of the plurality of pressure values measured by the plurality of force sensors 2, plus the gravity of the pressing body 4 and the support frame 3, and plus the inertial force of the moving part of the pressing body 4 (the product of the mass of the moving part and its acceleration, the acceleration direction of the moving part of the pressing body 4 in the deceleration stage is upward, so the inertial force of the moving part is downward, the inertial force in the deceleration stage is the same as the movement direction of the moving part), to obtain the vertical pressing force. The pressing force obtained in this way is more accurate.

[0032] The support frame 3 is connected with the plurality of force sensors 2, and the plurality of force sensors 2 form a plurality of support points for the pressing body 4. The plurality of force sensors 2 can detect the pressure of each support point, realize multi-point measurement, avoid measurement errors caused by uneven force of the pressing head 5, and improve the measurement accuracy.

[0033] In one embodiment, the force sensor 2 is provided with a center mounting point and a plurality of outer mounting points. The outer mounting points are connected with the base 1, and the center mounting point is connected with the support frame 3.

[0034] The force sensor 2 can be selected as a weighing sensor, which is usually composed of a strain gauge, a force arm and a circuit system. The strain gauge is a metal sheet with elasticity. When the weighing sensor is subjected to force, the strain gauge will deform, so as to measure the voltage change. The force sensor 2 can also be selected as any sensor capable of measuring tension or pressure in the prior art.

[0035] The force sensor 2 can be selected as the structure shown in Figure 5 The center mounting point is located at the center of the force sensor 2 and is used to support the support frame 3. The outer mounting points are located at the outer periphery of the force sensor 2 and are used to be connected with the base 1.

[0036] For example, the force sensor 2 is rectangular, and the four outer mounting points are arranged at the four corners of the force sensor 2, and the center mounting point of the force sensor 2 supporting the support frame 3 is located at the intersection of the two diagonals of the rectangle.

[0037] The support frame 3 is supported through the center mounting point of the force sensor 2, thereby improving the accuracy of the force sensor 2 detection.

[0038] As shown in the drawings, Figure 3 In one embodiment, the support frame 3 is provided with a groove 31 for supporting the pressing body 4, the pressing body 4 is connected with the bottom surface of the groove 31, and the outer side of the support frame 3 is provided with a plurality of mounting plates 32 corresponding to the force sensor 2.

[0039] The bottom of the pressing body 4 is fixedly connected with the bottom surface of the groove 31 of the support frame 3 through a third screw, so that the reaction force formed by the human body on the pressing head 5 can be transmitted to the support frame 3, and the support frame 3 is connected with the center mounting point of the force sensor 2 through the mounting plate 32.

[0040] As shown in the drawings, Figure 3 and Figure 4 In one embodiment, the bottom surface of the mounting plate 32 is provided with a first fixing column 34 corresponding to the center mounting point, and the base 1 is provided with a second fixing column 12 corresponding to the outer mounting point.

[0041] The first fixing column 34 makes the bottom surface of the mounting plate 32 not in contact with the top surface of the force sensor 2, and the second fixing column 12 makes the base 1 not in contact with the bottom surface of the force sensor 2, thereby facilitating the improvement of the accuracy of the pressure detection.

[0042] As shown in the drawings, Figure 4 , Figure 5 and Figure 7 Further, the center mounting point is provided with a center mounting hole 21, the first fixing column 34 is provided with a first threaded hole, and the center mounting hole 21 and the first threaded hole are connected through a first screw 23; the outer mounting point is provided with an outer mounting hole 22, the second fixing column 12 is provided with a second threaded hole, and the outer mounting hole 22 and the second threaded hole are connected through a second screw 24.

[0043] The first screw 23 passes through the center mounting hole 21 from bottom to top and is threadedly connected with the first fixing column 34, and the second screw 24 passes through the outer mounting hole 22 from top to bottom and is threadedly connected with the second fixing column 12, thereby connecting the force sensor 2 between the base 1 and the mounting plate 32, facilitating the detection of the pressure value.

[0044] As shown in the drawings, Figure 2 and Figure 4As shown in the drawings, in one embodiment, the base 1 is provided with a first through hole 11 capable of allowing the bottom of the support frame 3 to pass through, and a gap distance is formed between the side surface of the support frame 3 and the inner side of the first through hole 11.

[0045] The lower part of the support frame 3 passes through the base 1, and when the human body forms a non-vertical reaction force on the pressing head 5, the pressing body 4 and the support frame 3 connected thereto will be inclined after being subjected to the reaction force, so that the pressure values detected by the force sensors 2 at different positions will change accordingly. Therefore, the gap distance formed between the support frame 3 and the first through hole 11 can provide a certain space for the inclination of the support frame 3 and the pressing body 4 as a whole, thereby improving the accuracy of detection of the force sensor 2.

[0046] In one embodiment, the number of force sensors 2 is even, and the distances from the two force sensors 2 in opposite directions to the axis of the pressing head 5 are equal.

[0047] For example, the force sensors 2 are arranged in four, two in the front-rear direction and two in the left-right direction, and are symmetrically arranged, which facilitates more uniform support of the pressing body 4 and further improves the accuracy of pressure measurement.

[0048] As shown in the drawings, Figure 2 and Figure 6 In one embodiment, the pressing body 4 comprises a cylinder 6 connected with the support frame 3, the cylinder 6 is provided with a pressing rod 7 capable of reciprocating in the axial direction, and the pressing head 5 is arranged at the end of the pressing rod 7.

[0049] The bottom of the cylinder 6 is provided with a threaded hole, and the fourth screw is connected with the threaded hole at the bottom of the cylinder 6 after passing through the support frame 3 from bottom to top, so as to fix the cylinder 6 and the support frame 3. The pressing rod 7 can pass through the support frame 3 and is arranged in the cylinder 6, and when performing cardiopulmonary resuscitation, the pressing rod 7 drives the pressing head 5 to reciprocate in the axial direction to perform cardiopulmonary resuscitation on the human body.

[0050] As shown in the drawings, Figure 7 Further, the pressing body 4 further comprises a driving part 8 connected with the pressing rod 7 through a transmission assembly 9.

[0051] The transmission assembly 9 comprises a transmission nut 91 fixedly connected with the top of the pressing rod 7, the transmission nut 91 is slidably connected in the cylinder 6; a screw rod 92 is threadedly connected in the transmission nut 91, the top of the screw rod 92 extends out of the cylinder 6, and the top end of the screw rod 92 is provided with a first pulley 93 coaxially arranged therewith, the output end of the driving part 8 is provided with a second pulley 94 coaxially arranged therewith, and the first pulley 93 and the second pulley 94 are connected through a belt 95.

[0052] When the driving part 8 works, the second pulley 94 is driven to rotate, and the first pulley 93 connected with the second pulley 94 through the belt 95 is driven to rotate synchronously, so as to drive the screw rod 92 to rotate. Since the transmission nut 91 is connected in the radial direction in the cylinder 6, when the screw rod 92 rotates, the transmission nut 91 can only move in the axial direction, so as to drive the pressing rod 7 and the pressing head 5 fixedly connected with the transmission nut 91 to move synchronously.

[0053] As shown in Figure 3 and Figure 6 , in one embodiment, the bottom of the cylinder 6 is connected with the groove body 31, and the bottom surface of the groove body 31 is provided with a second through hole 33 through which the pressing rod 7 can pass.

[0054] The bottom of the cylinder 6 is provided with a threaded hole, the bottom of the groove body 31 is provided with a through hole, and the fourth screw is screwed and fixed with the cylinder 6 after passing through the through hole. The pressing rod 7 can pass through the second through hole 33, and the linear reciprocating motion of the pressing rod 7 is facilitated.

[0055] As shown in Figure 3 and Figure 6 , in one embodiment, the inside of the bottom of the second through hole 33 is provided with a supporting plate 35, the top of the second through hole 33 extends upward and is provided with a top ring plate 36, the second through hole 33 is provided with a guide cylinder 37, the guide cylinder 37 is arranged above the supporting plate 35, the top of the guide cylinder 37 and the top ring plate 36 is provided with a buffer pad 38, and the inside of the bottom of the cylinder 6 is provided with a stepped surface abutting against the buffer pad 38.

[0056] An annular pressing plate is formed on the inside of the bottom of the cylinder 6, the top of the guide cylinder 37 and the top ring plate 36 are located in the cylinder 6, and the bottom surface of the annular pressing plate is a stepped surface abutting against the buffer pad 38;

[0057] The inside surface of the guide cylinder 37 is used to contact the outside of the pressing rod 7, so as to guide and support the circumferential reciprocating motion of the pressing rod 7, and ensure the stability of the motion of the pressing rod 7. The top surface of the guide cylinder 37 abuts against the buffer pad 38, and the bottom surface abuts against the supporting plate 35. The buffer pad 38 is pressed and connected between the guide cylinder 37 and the stepped surface on the inside of the cylinder 6. When the pressing rod 7 moves, the guide cylinder 37 will have a tendency to move under the influence of the pressing rod 7. The buffer pad 38 can buffer the movement of the guide cylinder 37, and reduce the vibration impact on the cylinder 6 caused by the movement of the pressing rod 7.

[0058] In the description of the utility model, it is understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0059] In the utility model, unless otherwise expressly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integrated; can be mechanical connection, can also be electrical connection or communication with each other; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication or interaction relationship between two elements, unless otherwise expressly limited. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0060] Although the embodiments of the utility model have been disclosed as above, it is not limited to the application listed in the specification and embodiments only, it can be fully applied to various fields suitable for the utility model, and other modifications can be easily realized by those skilled in the art, therefore, the utility model is not limited to specific details and the figures shown and described herein without departing from the general concept defined by the utility model.

Claims

1. A pressure multipoint detection structure for cardiopulmonary resuscitation, characterized by, The application relates to a force sensor device. The application comprises a base (1) on which a plurality of force sensors (2) are arranged; a pressing body (4) is arranged on a supporting frame (3), a pressing head (5) on the pressing body (4) is arranged below the supporting frame (3), and the pressing body (4) is connected with the force sensors (2) through the supporting frame (3). A center mounting point and a plurality of outer mounting points are arranged on the force sensors (2), the outer mounting points are connected with the base (1), and the center mounting point is connected with the supporting frame (3).

2. The CPR pressure multipoint detection structure of claim 1, wherein, A groove (31) for supporting the pressing body (4) is arranged on the supporting frame (3), the pressing body (4) is connected with the bottom surface of the groove (31), and a plurality of mounting plates (32) corresponding to the force sensors (2) are arranged on the outer side of the supporting frame (3).

3. The CPR pressure multipoint detection structure of claim 2, wherein, A first through hole (11) through which the bottom of the supporting frame (3) passes is arranged on the base (1), and a gap distance is formed between the side surface of the supporting frame (3) and the inner side of the first through hole (11).

4. The CPR pressure multipoint detection structure of claim 2, wherein, The number of the plurality of force sensors (2) is even, and the distances from two force sensors (2) in opposite directions to the axis of the pressing head (5) are equal.

5. The CPR pressure multipoint sensing structure of claim 1, wherein, The pressing body (4) comprises a cylinder (6) connected with the supporting frame (3), a pressing rod (7) capable of reciprocating in the axial direction is arranged in the cylinder (6), and the pressing head (5) is arranged at the end of the pressing rod (7).

6. The CPR pressure multipoint sensing structure of claim 3, wherein, The bottom of the cylinder (6) is connected with the groove (31), and a second through hole (33) through which the pressing rod (7) passes is arranged on the bottom surface of the groove (31).

7. The CPR pressure multipoint sensing structure of claim 6, wherein, A first fixing column (34) corresponding to the center mounting point is arranged on the bottom surface of the mounting plate (32), and a second fixing column (12) corresponding to the outer mounting point is arranged on the base (1).

8. The CPR pressure multipoint sensing structure of claim 3, wherein, A center mounting hole (21) is arranged at the center mounting point, a first threaded hole is arranged on the first fixing column (34), the center mounting hole (21) and the first threaded hole are connected through a first screw (23), an outer mounting hole (22) is arranged at the outer mounting point, a second threaded hole is arranged on the second fixing column (12), and the outer mounting hole (22) and the second threaded hole are connected through a second screw (24).

9. The CPR pressure multipoint sensing structure of claim 8, wherein, A supporting plate (35) is arranged on the inner side of the bottom of the second through hole (33), a top ring plate (36) is arranged on the top of the second through hole (33) and extends upwards, a guide cylinder (37) is arranged in the second through hole (33), the guide cylinder (37) is arranged above the supporting plate (35), a buffer pad (38) is arranged on the top of the guide cylinder (37) and the top ring plate (36), and a stepped surface abutting against the buffer pad (38) is arranged on the inner side of the bottom of the cylinder (6).

10. The CPR pressure multipoint sensing structure of claim 7, wherein, ​

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