Uterine contraction pressure probe

Abstract

The utility model discloses a uterine contraction pressure probe, and belongs to the technical field of medical equipment. The uterine contraction pressure probe comprises a shell, a plurality of electrocardio electrodes and a control circuit board, the shell is provided with a containing cavity, and the control circuit board is installed in the containing cavity and used for receiving and processing electrocardio signals; the shell comprises a first shell body, the first shell body is provided with a first face close to the skin of a pregnant woman during use, the multiple electrocardio-electrodes are fixed to the first face, the multiple electrocardio-electrodes are electrically connected with the control circuit board, and the multiple electrocardio-electrodes are used for obtaining electrocardio-signals of the pregnant woman when the first face is close to the skin of the pregnant woman and transmitting the electrocardio-signals to the control circuit board. According to the uterine contraction pressure probe, the multiple electrocardio-electrodes are fixed to the first face of the first shell, so that the electrocardio-electrodes are integrated in the first shell, and compared with the mode that the electrocardio-electrodes are arranged outside the shell through electrode sleeves, the size of the uterine contraction pressure probe can be reduced, and use is convenient.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical equipment, in particular to a uterine contraction pressure probe. BACKGROUND

[0002] The uterine contraction pressure probe is an accessory of a monitor (such as a fetal / mother monitor), which is used to monitor the uterine contraction pressure information of a pregnant woman, so that medical staff can judge the state of the pregnant woman and take corresponding measures in time. In the related art, the uterine contraction pressure probe can only measure the uterine contraction pressure of the pregnant woman, and if it is required to measure the electrocardiosignal of the pregnant woman at the same time, an electrode sleeve with electrocardioelectrodes needs to be sleeved outside the shell of the uterine contraction pressure probe, which results in that the uterine contraction pressure probe has a large volume and is inconvenient to use. CONTENT OF THE UTILITY MODEL

[0003] The present application provides a uterine contraction pressure probe, which can solve the technical problem that the uterine contraction pressure probe has a large volume and is inconvenient to use when measuring the electrocardiosignal.

[0004] To solve the above technical problem, the uterine contraction pressure probe provided by the present application comprises a shell, a plurality of electrocardioelectrodes and a control circuit board, the shell is provided with a containing cavity, the control circuit board is installed in the containing cavity, and the control circuit board is used to receive and process an electrocardiosignal; the shell comprises a first shell, the first shell has a first face close to the skin of a pregnant woman during use, the plurality of electrocardioelectrodes are fixed on the first face, and the plurality of electrocardioelectrodes are electrically connected with the control circuit board, the plurality of electrocardioelectrodes are used to acquire the electrocardiosignal of the pregnant woman when the first face is close to the skin of the pregnant woman, and the electrocardiosignal is transmitted to the control circuit board.

[0005] The uterine contraction pressure probe provided by the present application comprises a plurality of electrocardioelectrodes, the plurality of electrocardioelectrodes are fixed on the first face of the first shell, so that the electrocardioelectrodes are integrated in the first shell, which can reduce the volume of the uterine contraction pressure probe and facilitate use, as compared with the case that the electrocardioelectrodes are sleeved outside the shell through an electrode sleeve. BRIEF DESCRIPTION OF DRAWINGS

[0006] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0007] Figure 1 is an assembly structure schematic diagram of an embodiment of the uterine contraction pressure probe provided by the present application;

[0008] Figure 2 is an exploded structure schematic diagram of an embodiment of the uterine contraction pressure probe provided by the present application;

[0009] Figure 3 is a cross-sectional structural schematic diagram of an embodiment of the uterine contraction pressure probe provided by the present application along a perspective view;

[0010] Figure 4 is a partial cross-sectional structural schematic diagram of an embodiment of the uterine contraction pressure probe provided by the present application along a perspective view;

[0011] Figure 5 is a structural schematic diagram of an embodiment of the first shell provided by the present application;

[0012] Figure 6 is a structural schematic diagram of an embodiment of the flexible contact provided by the present application;

[0013] Figure 7 is a cross-sectional structural schematic diagram of an embodiment of the flexible contact provided by the present application along a perspective view;

[0014] Figure 8 is a structural schematic diagram of an embodiment of the pressure sensing member provided by the present application along a perspective view;

[0015] Figure 9 is a structural schematic diagram of another embodiment of the pressure sensing member provided by the present application along a perspective view;

[0016] Figure 10 is a structural schematic diagram of still another embodiment of the pressure sensing member provided by the present application along a perspective view;

[0017] Figure 11 is a structural schematic diagram of yet another embodiment of the pressure sensing member provided by the present application along a perspective view;

[0018] Figure 12 is a structural schematic diagram of still another embodiment of the pressure sensing member provided by the present application along another perspective view;

[0019] Figure 13 is a cross-sectional structural schematic diagram of an embodiment of the rigid transmission member provided by the present application along a perspective view;

[0020] Figure 14 is a structural schematic diagram of an embodiment of the electrocardio electrode provided by the present application. DETAILED DESCRIPTION

[0021] The present application will be further described below in conjunction with the accompanying drawings and embodiments. It is particularly pointed out that the following embodiments are only used to illustrate the present application, but do not limit the scope of the present application. Similarly, the following embodiments are only part of the embodiments of the present application, but not all the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art without making creative efforts are within the scope of protection of the present application.

[0022] In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly and specifically limited. The terms "first", "second", "third" in the embodiments of the present application are only for descriptive purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second", "third" can explicitly or implicitly include at least one of the features. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative position relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications also change accordingly. The terms "comprising" and "having" and any variations thereof in the embodiments of the present application are intended to cover non-exclusive inclusion. For example, the process, method, system, product or device including a series of steps or units is not limited to the listed steps or units, but can optionally include steps or units not listed, or can optionally include other steps or components inherent to the process, method, product or device.

[0023] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment can be included in at least one embodiment of the application. The appearances of the phrase that in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive of one another. As will be apparent to those of ordinary skill in the art, embodiments described herein can be combined with other embodiments.

[0024] The present application provides a uterine contraction pressure probe. Please refer to Figures 1-4 The uterine contraction pressure probe 100 can include a housing 10, a flexible contact 20, and a pressure detection assembly 30. The housing 10 can be bound to the abdomen of a pregnant woman by a bandage to monitor the uterine contraction pressure of the pregnant woman. The housing 10 is provided with a receiving cavity 13, and the pressure detection assembly 30 is installed in the receiving cavity 13. The pressure detection assembly 30 is used to obtain the uterine contraction pressure information of the pregnant woman to assist the doctor in judging the uterine contraction condition of the pregnant woman.

[0025] Please refer to Figure 2 , Figure 3The shell 10 comprises a first shell 11 and a second shell 12 connected to each other, and the first shell 11 and the second shell 12 enclose a receiving cavity 13. The first shell 11 is arranged on the side close to the skin of the pregnant woman during use, and the second shell 12 is arranged on the side away from the skin of the pregnant woman during use. The second shell 12 can be connected to the belt so as to bind the uterine contraction pressure probe 100 to the abdomen of the pregnant woman. The connection between the first shell 11 and the second shell 12 can be by means of adhesion, clamping or threaded connection. The shell 10 is provided with a first through hole 112. The shape of the first through hole 112 can be circular, oval, polygonal or other shapes. The shape and size of the flexible contact piece 20 are adapted to the shape and size of the first through hole 112, and the flexible contact piece 20 is arranged at the first through hole 112 and connected to the shell 10. The first through hole 112 can be provided in the first shell 11, as shown in Figure 3 、 Figure 5 The first shell 11 has a first surface 111 close to the skin of the pregnant woman during use, and the first surface 111 is provided with the first through hole 112, and the flexible contact piece 20 is arranged at the first through hole 112 and connected to the first shell 11.

[0026] The flexible contact piece 20 has a contact surface 21 for adhering to the skin of the pregnant woman. Specifically, the contact surface 21 is the surface of the flexible contact piece 20 outside the receiving cavity 13. In the related art, an annular groove is provided on the flexible contact piece 20 to make the flexible contact piece 20 meet the required deformation amount of the test range, but since the groove forms a depression and the size of the groove is small, the disinfection treatment of the groove is not convenient, which makes the disinfection and cleaning operation of the uterine contraction pressure probe 100 difficult.

[0027] Please refer to Figure 3 、 Figure 4 To solve the above technical problems, the uterine contraction pressure probe 100 provided by the present application is provided. The edge area 22 of the contact surface 21 is flush with the side of the first surface 111 outside the receiving cavity 13, and the area of the contact surface 21 except the edge area 22 protrudes to the outside of the receiving cavity 13. The edge area 22 refers to the area located at the outermost side of the flexible contact piece 20. When the shape of the flexible contact piece 20 is circular, the edge area 22 can be the area located at the outermost side in the form of a circular ring. Considering the limitation of the processing technology, there can be a tolerance of ±0.2mm between the edge area 22 of the contact surface 21 and the side of the first surface 111 outside the receiving cavity 13. In this way, the contact surface 21 does not have a small groove, and the disinfection and cleaning operation of the contact surface 21 can be facilitated. The surface of the flexible contact piece 20 away from the contact surface 21 is in contact with the pressure detection assembly 30, so that the uterine contraction pressure of the pregnant woman can be transmitted to the pressure detection assembly 30 through the flexible contact piece 20.

[0028] The portion of the contact surface 21 protruding from the first surface 111 toward the outside space of the accommodating cavity 13 can be in a stepped structure, i.e., the contact surface 21 is provided with one or more steps protruding toward the outside space of the accommodating cavity 13, so as to facilitate the flexible contact piece 20 to adhere to the skin of the pregnant woman and transmit the uterine contraction pressure, and since the stepped structure does not have a groove with a smaller size, the disinfection and cleaning operation of the contact surface 21 can be facilitated.

[0029] In an embodiment, as shown in Figure 3 、 Figure 6 The size of the contact surface 21 protruding from the first surface 111 gradually increases from the outer peripheral area to the middle area of the flexible contact piece 20, and the portion of the contact surface 21 protruding from the first surface 111 toward the outside space of the accommodating cavity 13 is in a smooth curved surface structure. The contact surface 21 is provided in a smooth curved surface structure, which can make the flexible contact piece 20 adhere to the skin of the pregnant woman closely and comfortably, and prevent pressure injuries caused by repeated extrusion or friction of the skin surface of the pregnant woman by the edges of the stepped structure during long-term monitoring, thereby improving the user experience.

[0030] In an embodiment, the maximum size of the area of the contact surface 21 other than the edge area 22 protruding from the first surface 111 toward the outside space of the accommodating cavity 13 is in the range of 0.5-2 mm. It is found through experiments that if the maximum size of the contact surface 21 protruding from the first surface 111 is less than 0.5 mm, the size of the contact surface 21 protruding from the first surface 111 is small, and when the shell 10 is bound to the abdomen of the pregnant woman, the contact surface 21 is difficult to contact or has a small contact area with the abdomen of the pregnant woman, which will reduce the measurement accuracy of the uterine contraction pressure; if the maximum size of the contact surface 21 protruding from the first surface 111 is greater than 2 mm, the size of the contact surface 21 protruding from the first surface 111 is large, and when the shell 10 is bound to the abdomen of the pregnant woman, the contact area of the contact surface 21 with the pregnant woman is large, and since the skin of the pregnant woman is thinner and tighter than that of ordinary people, the size of the protruding first surface 111 is too large, which is easy to cause pressure injuries to the skin of the pregnant woman by the flexible contact piece 20. Exemplarily, the maximum size of the area of the contact surface 21 other than the edge area 22 protruding from the first surface 111 toward the outside space of the accommodating cavity 13 is 0.5 mm, 1.0 mm, 1.5 mm, or 2.0 mm, etc., which is not specifically limited herein.

[0031] The material of the flexible contact 20 can be a relatively soft material such as TPE (Thermoplastic Elastomer), TPU (Thermoplastic Urethane), or TPR (Thermoplastic Rubber), so as to prevent the flexible contact 20 from causing pressure damage to the skin of the pregnant woman due to long-time contact with the skin. The material of the flexible contact 20 can also be silicone. Silicone has good ductility, weather resistance, and resistance to disinfectant agents. Due to the excellent ductility of silicone, the required deformation amount of the test range can be achieved by relying on the ductility of the material directly.

[0032] In an embodiment, as shown in Figure 3 、 Figure 6 、 Figure 7 The thickness of the entire or part of the outer peripheral region 23 of the flexible contact 20 within the range of the first through hole 112 is less than the thickness of the middle region 24 of the flexible contact 20. The outer peripheral region 23 of the flexible contact 20 is a region where the flexible contact 20 deforms under the uterine contraction pressure. The outer peripheral region 23 of the flexible contact 20 within the range of the first through hole 112 can be a region adjacent to the edge region 22 of the contact surface 21 and closer to the middle region 24 than the edge region 22; the outer peripheral region 23 of the flexible contact 20 within the range of the first through hole 112 can also include the edge region 22, or the outer peripheral region 23 is part of the edge region 22. For example, when a part of the first shell 11 at the first through hole 112 is embedded in the flexible contact 20, that is, the flexible contact 20 is clamped on both sides of the first shell 11 at the first through hole 112, at this time, the outer peripheral region 23 is adjacent to the edge region 22 of the contact surface 21 and closer to the middle region 24 than the edge region 22; for another example, when the outer wall of the flexible contact 20 is attached to the inner wall of the first through hole 112 and fixedly connected to the first shell 11, at this time, the outer peripheral region 23 can include the edge region 22, or the outer peripheral region 23 is part of the edge region 22. By setting the thickness of the outer peripheral region 23 of the flexible contact 20 to be less than the thickness of the middle region 24, the bending stiffness of the region where the flexible contact 20 deforms under the uterine contraction pressure can be reduced, so that the flexible contact 20 is more likely to meet the required deformation amount of the test range.

[0033] Please refer to Figure 2 、 Figure 3 、 Figure 7In an embodiment, the pressure detection assembly 30 comprises a rigid transmission member 31, and the flexible contact member 20 is in contact with the rigid transmission member 31 on a side opposite to the contact surface 21, and the uterine contraction pressure of the pregnant woman is transmitted through the flexible contact member 20 and the rigid transmission member 31. The side of the flexible contact member 20 opposite to the contact surface 21 is provided with a receiving groove 25 and an annular groove 26, and a part of the rigid transmission member 31 is accommodated in the receiving groove 25. The receiving groove 25 is matched with the shape of one end of the rigid transmission member 31, so that the flexible contact member 20 can wrap around the outer periphery of one end of the rigid transmission member 31. The groove wall of the receiving groove 25 can laterally limit the rigid transmission member 31, preventing the rigid transmission member 31 from moving laterally, and improving the detection accuracy of the pressure detection assembly 30. In addition, when the rigid transmission member 31 is connected to the flexible contact member 20 by gluing, the receiving groove 25 can also prevent glue from overflowing to the outer peripheral area 23 of the flexible contact member 20. If the glue overflows into the annular groove 26, it will affect the deformation consistency of the flexible contact member 20, and then affect the measurement accuracy. The annular groove 26 is arranged around the rigid transmission member 31, and the thickness of the area of the flexible contact member 20 where the annular groove 26 is opened is less than the thickness of the middle area 24. The annular groove 26 is opened on the outer periphery of the rigid transmission member 31, and the thickness of the area of the flexible contact member 20 where the annular groove 26 is opened is less than the thickness of the middle area 24, which can reduce the bending stiffness of the area of the flexible contact member 20 that deforms under the uterine contraction pressure, so that the flexible contact member 20 can more easily meet the deformation amount required by the test range.

[0034] The outer wall of the flexible contact member 20 can be attached to the inner wall of the first through hole 112 to fix the flexible contact member 20 to the first shell 11. In order to reliably connect the flexible contact member 20 and the first shell 11, a certain contact area is required between the outer wall of the flexible contact member 20 and the inner wall of the first through hole 112, that is, the height of the first through hole 112 meets the requirement of connection strength, and accordingly, the size of the first shell 11 in the extension direction of the first through hole 112 is greater than a predetermined value. In an embodiment, as shown in Figure 4 、 Figure 5As shown, the first shell 11 is provided with an annular notch 113 at the first through hole 112 away from the accommodating cavity 13, and the flexible contact 20 is connected at the annular notch 113, and the outer edge of the flexible contact 20 is embedded in the annular notch 113 in whole or in part. By providing the annular notch 113 at the first through hole 112 and embedding the outer edge of the flexible contact 20 in the annular notch 113 in whole or in part, on the one hand, the contact area of the connection between the flexible contact 20 and the first shell 11 can be increased, thereby improving the reliability of the connection between the flexible contact 20 and the first shell 11; on the other hand, by providing the annular notch 113, the connection between the first shell 11 and the flexible contact 20 has a certain size in the extension direction perpendicular to the first through hole 112, and the connection between the flexible contact 20 and the first shell 11 is not dependent on the contact area between the outer wall of the flexible contact 20 and the inner wall of the first through hole 112, so that the size of the first shell 11 in the extension direction of the first through hole 112 can be reduced, thereby reducing the size of the uterine contraction pressure probe 100.

[0035] The flexible contact 20 can be attached at the annular notch 113 of the first shell 11 with the outer wall and the side away from the contact surface 21, so that the flexible contact 20 is connected with the first shell 11. In an embodiment, as shown in Figure 4 、 Figure 7 The outer edge of the flexible contact 20 is provided with a clamping groove 27 along the outer periphery, and the part of the first shell 11 provided with the annular notch 113 is clamped in the clamping groove 27. In this way, the flexible contact 20 is clamped on both sides of the part of the first shell 11 provided with the annular notch 113, and in addition to the attachment of the outer wall of the flexible contact 20 with the first shell 11, the flexible contact 20 and the first shell 11 form double-sided attachment, which can increase the contact area of the connection between the flexible contact 20 and the first shell 11, thereby improving the reliability of the connection between the flexible contact 20 and the first shell 11.

[0036] Please refer to Figure 4 、 Figure 7 In an embodiment, the size of the side of the flexible contact 20 located in the accommodating cavity 13 is greater than the size of the other side of the flexible contact 20 located outside the accommodating cavity 13, thereby further increasing the contact area of the connection between the flexible contact 20 and the first shell 11, and improving the reliability of the connection between the flexible contact 20 and the first shell 11.

[0037] In an embodiment, as shown in Figure 5 The first shell 11 is provided with a connecting hole 114 at the annular notch 113, and a part of the flexible contact 20 is embedded in the connecting hole 114, so that the flexible contact 20 and the first shell 11 form a “bite” connection, and the connection between the flexible contact 20 and the first shell 11 is more firm.

[0038] The connection between the flexible contact 20 and the first shell 11 can be adhesive or clamping, so that the flexible contact 20 is fixedly connected to the first shell 11. In an embodiment, the flexible contact 20 and the first shell 11 are integrally formed by an injection molding process. Integrally injection molding the flexible contact 20 and the first shell 11 can enhance the adhesion between the flexible contact 20 and the first shell 11, thereby improving the reliability of the connection between the flexible contact 20 and the first shell 11.

[0039] Referring to Figure 2 , Figure 3 The pressure detection assembly 30 includes a rigid transmission member 31, a pressure sensing member 32, and a pressure detection member 33. The pressure sensing member 32 is fixedly installed in the accommodating cavity 13. The uterine contraction pressure of the pregnant woman is transmitted to the pressure sensing member 32 through the flexible contact 20 and the rigid transmission member 31. The pressure detection member 33 is installed on the pressure sensing member 32. The pressure detection member 33 is used to obtain uterine contraction pressure information.

[0040] In the related art, the pressure detection member 33 obtains uterine contraction pressure information by detecting the deformation of the deformation area of the pressure sensing member 32. When the same pressure is applied at different positions on the flexible contact 20 at the same distance from the contact position of the pressure sensing member 32 and the rigid transmission member 31, the deformation amount generated by the deformation area of the pressure sensing member 32 can be different, resulting in inaccurate uterine contraction pressure measurement.

[0041] Referring to Figure 3 , Figures 8-10To solve the above technical problems, the uterine contraction pressure probe 100 provided by the present application, the pressure sensing part 32 comprises a connecting part 35 and a sensing part 36. The sensing part 36 can be deformed under the action of uterine contraction pressure, facilitating the acquisition of uterine contraction pressure information by detecting the deformation of the sensing part 36. The sensing part 36 has a first end 361 and a second end 362, the first end 361 is connected with the connecting part 35, and the second end 362 is fixed in the accommodating cavity 13. The first end 361 is used to transmit the uterine contraction pressure from the connecting part 35 to the deformation area of the sensing part 36, and the second end 362 forms a support point of the sensing part 36. The part of the sensing part 36 between the first end 361 and the second end 362 has a gap with the connecting part 35, so that the part of the sensing part 36 except the first end 361 is not in contact with the connecting part 35, and the sensing part 36 can be deformed freely. The two ends of the rigid transmission part 31 are respectively in contact with the flexible contact part 20 and the connecting part 35 to transmit the uterine contraction pressure. The uterine contraction pressure of the pregnant woman is transmitted to the sensing part 36 through the flexible contact part 20, the rigid transmission part 31 and the connecting part 35, so that the sensing part 36 can be deformed. The pressure detection part 33 is installed on the sensing part 36, and the pressure detection part 33 is used to detect the deformation information of the sensing part 36, so as to acquire the uterine contraction pressure information. The pressure detection part 33 can be a resistance strain gauge (resistance strain gage), and the pressure detection part 33 can be bonded to the sensing part 36.

[0042] The number of sensing parts is N, and N is a positive integer greater than or equal to 2. The number of sensing parts 36 is at least two, so that the pressure sensing part 32 has at least two deformation areas, which can prevent the pressure sensing part 32 from being subjected to unilateral force, and is beneficial to improve the uniformity of deformation of the pressure sensing part 32 under the action of uterine contraction pressure. For example, Figures 8-10As shown, the number of the sensing portions 36 can be two, three or more. The N sensing portions 36 are arranged on the outer periphery of the connecting portion 35. If the profile of any one of the N sensing portions 36 is rotated by 360 / N degrees around the contact between the rigid driving member 31 and the connecting portion 35, it can coincide with the profile of another one of the N sensing portions 36. That is, the shape and size of each sensing portion 36 are the same, the first ends 361 of each sensing portion 36 are uniformly arranged on the outer periphery of the connecting portion 35, and the second ends 362 of each sensing portion 36 are uniformly arranged on the outer periphery of the connecting portion 35. The shape and size of each sensing portion 36 are the same, so that the geometric conditions of each sensing portion 36 are the same, which is conducive to the same deformation of each sensing portion 36 under the action of the uterine contraction pressure. The first ends 361 of each sensing portion 36 are uniformly arranged on the outer periphery of the connecting portion 35, and the second ends 362 of each sensing portion 36 are uniformly arranged on the outer periphery of the connecting portion 35. The first ends 361 (or the second ends 362) of each sensing portion 36 are uniformly arranged on the outer periphery of the connecting portion 35, which means that the distance between the first ends 361 (or the second ends 362) of any two adjacent sensing portions 36 along the circumferential direction of the connecting portion 35 is substantially equal; or the geometric centers of the first ends 361 (or the second ends 362) of any two adjacent sensing portions 36 form an angle with the geometric center of the connecting portion 35, and the angle is substantially equal. Since the first end 361 transmits the uterine contraction pressure from the connecting portion 35 to the deformation region of the sensing portion 36, the first ends 361 of each sensing portion 36 are uniformly arranged on the outer periphery of the connecting portion 35, so that the load input conditions of each sensing portion 36 are the same, which is conducive to the same deformation of each sensing portion 36 under the action of the uterine contraction pressure; and since the second end 362 forms a support point of the sensing portion 36, the second ends 362 of each sensing portion 36 are uniformly arranged on the outer periphery of the connecting portion 35, so that the support conditions of each sensing portion 36 are the same, which is conducive to the same deformation of each sensing portion 36 under the action of the uterine contraction pressure.

[0043] The uterine contraction pressure probe 100 provided in the present application has at least two sensing portions 36, so that the pressure sensing member 32 has at least two deformation regions, which is conducive to improving the uniformity of the deformation of the pressure sensing member 32 under the action of the uterine contraction pressure; further, if the profile of any one of the N sensing portions 36 is rotated by 360 / N degrees around the contact between the rigid driving member 31 and the connecting portion 35, it can coincide with the profile of another one of the N sensing portions 36, so that the geometric conditions, load input conditions and support conditions of each sensing portion 36 are the same, which is conducive to the same deformation of each sensing portion 36 under the action of the uterine contraction pressure, so that the deformation of the pressure sensing member 32 in each direction is relatively uniform. When the same pressure is applied on the flexible contact member 20 at different positions which are the same distance from the contact position between the pressure sensing member 32 and the rigid driving member 31, the pressure sensing member 32 can produce the same deformation amount, thereby improving the accuracy of the uterine contraction pressure measurement.

[0044] The sensing part 36 and the connecting part 35 can be processed separately and then assembled to form the pressure sensing element 32, that is, each component of the pressure sensing element 32 can be a separate structure; the pressure sensing element 32 can also be an integral structure, for example, the sensing part 36 and the connecting part 35 can be integrally formed to form the pressure sensing element 32 by etching or stamping processes on the substrate.

[0045] The pressure sensor 32 can be a thin sheet structure, allowing the sensing part 36 to deform significantly under uterine contraction pressure. For example, a 1 kg force exerted on the flexible contact 20 by uterine contraction pressure can cause a 1 mm deformation in the sensing part 36. The sensing part 36 can be sheet-like. Sheet-like means that within the plane of the sensing part 36, the dimensional difference between the sensing part 36 in two mutually orthogonal directions is not significant. Or, as... Figures 8-10 As shown, the sensing part 36 is elongated, and part or all of the sensing part 36 located between the first end 361 and the second end 362 falls outside the line connecting the first end 361 and the second end 362. The elongated shape of the sensing part 36 means that, within the plane of the sensing part 36, the dimension of the sensing part 36 along the extending direction is greater than the dimension perpendicular to the extending direction. For example, the ratio of the dimension of the sensing part 36 along the extending direction to the dimension perpendicular to the extending direction is greater than or equal to 2, making the sensing part 36 relatively slender. Under the action of uterine contraction pressure, the sensing part 36 can produce a larger amount of deformation, which is beneficial to improving the sensitivity of uterine contraction pressure measurement. Setting the sensing part 36 to fall outside the line connecting the first end 361 and the second end 362, so that the sensing part 36 extends at least partially in a curved manner, can increase the amount of deformation of the sensing part 36 under the action of uterine contraction pressure compared to a straight extension, which is beneficial to further improving the sensitivity of uterine contraction pressure measurement. The sensing part 36 is elongated, wherein the extension line of the sensing part 36 can be an arc shape. Figure 8 The curve, the extension line of the sensing part 36 can also be a right angle ( Figure 9 ), acute angle ( Figure 10 () or an obtuse-angled curve.

[0046] The shape formed by the combination of the various sensing parts 36 may differ from the shape of the connecting part 35. For example, the connecting part 35 may be in a positive direction, the extension lines of the sensing parts 36 may be arc-shaped, the second ends 362 of each sensing part 36 may extend away from the geometric center of the connecting part 35, and the gap between each sensing part 36 and the connecting part 35 may gradually increase from the first end 361 to the second end 362, so that the shape formed by the combination of the various sensing parts 36 is radial, the sensing parts 36 are relatively slender, and the sensing parts 36 may produce a large amount of deformation under the pressure of uterine contractions.

[0047] In one embodiment, such asFigures 8-10 As shown, each sensing portion 36 is arranged around the connecting portion 35, and at the gap between each sensing portion 36 and the connecting portion 35, the distance from any point on the outer contour line of the connecting portion 35 to the outer contour line of the sensing portion 36 is equal. In this way, the gap between each sensing portion 36 and the connecting portion 35 from the first end 361 to the second end 362 is equal, and the outer contour shape of the pattern formed by the combination of the sensing portions 36 can be substantially the same as the outer contour shape of the connecting portion 35, so that the space around the connecting portion 35 can be fully utilized, the structure of the pressure sensing member 32 is more compact, and the size of the pressure sensing member 32 can be reduced. For example, the shape of the connecting portion 35 can be circular, elliptical or regular polygonal, and correspondingly, the shape formed by the combination of the sensing portions 36 can also be substantially circular, elliptical or regular polygonal. It can be understood that when the connecting portion 35 has a corner (which can be a right angle, an obtuse angle or an acute angle) on the outer contour line, due to the need for processing technology, a chamfer is usually arranged at the corner, and the distance from the point at the chamfer to the outer contour line of the sensing portion 36 can be different from the distance from other points to the outer contour line of the sensing portion 36.

[0048] In an embodiment, as shown in Figure 8 the outer contour of the connecting portion 35 is circular, and the outer contour of the sensing portion 36 at a part or all of the part between the first end 361 and the second end 362 is a part of the outer contour of a circular ring, and the centers of the circular ring and the connecting portion 35 coincide with each other. Arranging the connecting portion 35 in a circular shape and the sensing portion 36 in a circular ring shape can reduce the gap between each sensing portion 36 and the connecting portion 35, so that the structure of the pressure sensing member 32 is more compact, and the size of the pressure sensing member 32 can be reduced.

[0049] In an embodiment, as shown in Figures 8-10 the distance between the second end 362 of each sensing portion 36 and the first end 361 of the adjacent sensing portion 36 in the extension direction of each sensing portion 36 is less than a preset value. For example, the preset value can be 2 mm, 1.5 mm, 1.0 mm or 0.5 mm, etc. In this way, the distance between the ends of the adjacent two sensing portions 36 in the extension direction can be as small as possible, so that the space around the connecting portion 35 can be fully utilized to increase the length of the sensing portion 36, the structure of the pressure sensing member 32 is more compact, and the size of the pressure sensing member 32 can be reduced.

[0050] The second end 362 of the sensing portion 36 can be directly fixed in the accommodating cavity 13. For example, the second end 362 is provided with a hole, and the second end 362 is fixed in the accommodating cavity 13 by a screw inserted in the hole. In an embodiment, as shown in Figure 11As shown, the pressure sensing piece 32 comprises a mounting portion 37 which is arranged around the outer periphery of each sensing portion 36, and the second end 362 of each sensing portion 36 is connected with the mounting portion 37 and fixed in the accommodating cavity 13 through the mounting portion 37. The mounting portion 37 can be annular, and the geometric center of the mounting portion 37, the geometric center of the connecting portion 35 and the geometric center of the pattern formed by each sensing portion 36 are coincident with each other, so that the structure of the pressure sensing piece 32 is compact and the size of the pressure sensing piece 32 can be further reduced. The mounting portion 37, the sensing portion 36 and the connecting portion 35 can be separately machined and then assembled to form the pressure sensing piece 32, that is, each component of the pressure sensing piece 32 can be a split structure. The pressure sensing piece 32 can also be a one-piece structure, and the mounting portion 37, the sensing portion 36 and the connecting portion 35 are integrally formed to form the pressure sensing piece 32. For example, the substrate is etched or stamped, and part of the area on the substrate is hollowed out, so that the pressure sensing piece 32 is integrally formed, and the pressure sensing piece 32 has good integrity. The second end 362 of each sensing portion 36 is connected with the mounting portion 37, so that the mounting portion 37 and the connecting portion 35 are connected at opposite ends of each sensing portion 36, thereby connecting each sensing portion 36 as a whole, which can enhance the integrity of the pressure sensing piece 32 and facilitate the assembly of the pressure sensing piece 32.

[0051] As described above, the number of sensing portions 36 can be two, three or more, and the more the number of sensing portions 36, the more the deformation area of the pressure sensing piece 32, and the deformation of the pressure sensing piece 32 in each direction will be more uniform. Please refer to Figure 12 In an embodiment, the number of sensing portions 36 is two, and the outer contours of the two sensing portions 36 are centrally symmetric about the geometric center of the connecting portion 35, or the two sensing portions 36 and the connecting portion 35 form a centrally symmetric pattern. The two sensing portions 36 are arranged to make the pressure sensing piece 32 have two deformation areas, which can prevent the pressure sensing piece 32 from being subjected to unilateral force and improve the uniformity of the deformation of the pressure sensing piece 32 under the action of uterine contraction pressure; and the number of sensing portions 36 is relatively small, thereby reducing the processing difficulty of the pressure sensing piece 32. The outer contours of the two sensing portions 36 are centrally symmetric about the geometric center of the connecting portion 35, or the two sensing portions 36 and the connecting portion 35 form a centrally symmetric pattern, so that the shape of the pressure sensing piece 32 is relatively regular, which facilitates the processing of the pressure sensing piece 32 and ensures that the deformation of the pressure sensing piece 32 in each direction is relatively uniform, thereby improving the accuracy of uterine contraction pressure measurement.

[0052] The connecting portion 35 and the rigid transmission piece 31 can be fixedly connected or not fixedly connected, as long as the rigid transmission piece 31 can contact the connecting portion 35 and transmit the uterine contraction pressure to the connecting portion 35. In an embodiment, as Figure 3As shown, the pressure detection assembly 30 comprises a fixing member 34, which fixedly connects the connecting portion 35 with the rigid transmission member 31. The fixing member 34 can be a screw, and the connecting portion 35 and the rigid transmission member 31 are provided with holes, and the fixing member 34 is screwed with the rigid transmission member 31, so as to fix the connecting portion 35 on the rigid transmission member 31. The fixing member 34 can also be glue, double-sided tape or other adhesive materials, i.e. the connecting portion 35 can be fixed on the rigid transmission member 31 by the glue, double-sided tape or other adhesive materials. By fixing the connecting portion 35 with the rigid transmission member 31 through the fixing member 34, the connecting portion 35 and the rigid transmission member 31 always move synchronously, so as to prevent the sliding between the connecting portion 35 and the rigid transmission member 31 after a long time of use, and affect the detection precision; in addition, the rigid transmission member 31 can be prevented from being deflected by the contraction pressure, so as to ensure the action direction and the action point of the contraction pressure transmitted to the connecting portion 35. The geometric center of the normal projection of the fixing member 34 on the connecting portion 35 is located at the geometric center of the connecting portion 35. For example, when the shapes of the fixing member 34 and the connecting portion 35 are both circular, the line between the centers of the fixing member 34 and the connecting portion 35 is perpendicular to the connecting portion 35. In this way, the contraction pressure transmitted from the rigid transmission member 31 can act on the geometric center of the connecting portion 35, so as to ensure that the load input conditions of each sensing portion 36 are the same, and it is beneficial for each sensing portion 36 to produce the same deformation under the action of the contraction pressure.

[0053] The pressure sensing member 32 can be directly fixed and installed in the accommodating cavity 13, or can be indirectly fixed and installed in the accommodating cavity 13 through other components. In an embodiment, as shown in FIG. 2, the pressure sensing member 32 is fixed and installed in the accommodating cavity 13 through a fixing member 33. Figure 2 、 Figure 3As shown, the uterine contraction pressure probe 100 comprises a control circuit board 50, and the pressure sensing piece 32 is indirectly fixedly installed in the accommodating cavity 13 through the control circuit board 50. The control circuit board 50 is configured to receive and process the deformation information. The control circuit board 50 is fixedly installed in the accommodating cavity 13, the pressure sensing piece 32 is fixed on the control circuit board 50, and the sensing part 36 is spaced apart from the control circuit board 50 in the action direction of the rigid transmission piece 31, so that the sensing part 36 has a certain deformation space, and the sensing part 36 can be deformed freely. For example, the control circuit board 50 can be provided with a fixed column protruding from the control circuit board 50, and the mounting part 37 is fixed on the fixed column, so that the sensing part 36 is spaced apart from the control circuit board 50 in the action direction of the rigid transmission piece 31. The pressure detection piece 33 is electrically connected with the control circuit board 50, so that the deformation information can be transmitted to the control circuit board 50. The pressure sensing piece 32 is indirectly fixedly installed in the accommodating cavity 13 through the control circuit board 50, which can use the control circuit board 50 as a support for the pressure sensing piece 32, without the need to set up a separate pressure sensing piece support, thereby reducing the amount of materials in the accommodating cavity 13. In addition, the pressure sensing piece 32 is installed on the control circuit board 50, and the pressure detection piece 33 is installed on the sensing part 36 of the pressure sensing piece 32, so that the pressure detection piece 33 can be arranged close to the control circuit board 50, thereby facilitating the electrical connection between the pressure detection piece 33 and the control circuit board 50.

[0054] In an embodiment, the control circuit board 50 is provided with an embedded hole (not shown in the figure), the mounting part 37 is fixed on the control circuit board 50, and the sensing part 36 corresponds to the position of the embedded hole, so that the sensing part 36 deforms towards the embedded hole when subjected to pressure, and the space of the embedded hole can be fully utilized, thereby reducing the size of the product.

[0055] The pressure detection piece 33 can be one, and one pressure detection piece 33 can be selectively installed on one of the sensing parts 36. In an embodiment, at least two sensing parts 36 are respectively provided with a pressure detection piece 33, each pressure detection piece 33 is electrically connected with the control circuit board 50, and the control circuit board 50 is configured to generate uterine contraction pressure data based on the deformation information obtained by each pressure detection piece 33. For example, the average of the uterine contraction pressure values obtained by each pressure detection piece 33 can be used as the uterine contraction pressure data. By providing at least two sensing parts 36 respectively provided with a pressure detection piece 33, the number of pressure detection pieces 33 is at least two, so that the deformation information of at least two deformation regions of the pressure sensing piece 32 can be measured, and the uterine contraction pressure data can be generated based on the deformation information obtained by each pressure detection piece 33, thereby improving the accuracy of the uterine contraction pressure data.

[0056] The rigid transmission member 31 and the flexible contact member 20 can be connected by adhesive or by pre-embedding injection molding. The rigid transmission member 31 has relatively large rigidity so as to transmit the uterine contraction pressure to the sensing portions 36. For example, the rigid transmission member 31 can be made of metal or hard plastic. In an embodiment, the geometric center of the rigid transmission member 31 in the orthographic projection of the connecting portion 35 falls on the geometric center of the connecting portion 35 and the contact surface of the rigid transmission member 31. In this way, the direction of the uterine contraction pressure is perpendicular to the connecting portion 35 and the point of action is at the geometric center of the connecting portion 35 and the contact surface of the rigid transmission member 31. The connecting portion 35 can uniformly transmit the uterine contraction pressure to each of the sensing portions 36, thereby ensuring that the load input conditions of each of the sensing portions 36 are the same, and facilitating each of the sensing portions 36 to produce the same deformation under the uterine contraction pressure.

[0057] In an embodiment, the flexible contact member 20 and the connecting portion 35 have circular or regular polygonal outer contours, so that the flexible contact member 20 and the connecting portion 35 are regular and can be easily processed. The geometric center of the flexible contact member 20 in the orthographic projection of the connecting portion 35 falls on the geometric center of the connecting portion 35 and the contact surface of the rigid transmission member 31, so that the uterine contraction pressure received by the flexible contact member 20 can act vertically on the connecting portion 35, thereby ensuring that the load input conditions of each of the sensing portions 36 are the same.

[0058] In an embodiment, as shown in FIG. 2, the flexible contact member 20 is connected to the connecting portion 35 by a plurality of connecting members 21. The connecting members 21 can be made of metal or hard plastic. The connecting members 21 can be connected to the connecting portion 35 by adhesive or by pre-embedding injection molding. Figure 13As shown, the rigid transmission member 31 includes a transmission column 311 and a transmission plate 312, one end of the transmission column 311 is in contact with the connecting portion 35, the other end of the transmission column 311 is connected with the transmission plate 312, and the transmission plate 312 is in contact with the flexible contact member 20, so as to transmit the uterine contraction pressure to the transmission plate 312. The cross-sectional shape of the transmission plate 312 can be the same as or different from the cross-sectional shape of the transmission column 311. The cross-sectional shape of the transmission plate 312 and the transmission column 311 can be circular, oval or polygonal. In a reference plane perpendicular to the extension direction of the transmission column 311, the cross-sectional size of the transmission plate 312 is greater than the cross-sectional size of the transmission column 311. The cross-sectional size of the transmission plate 312 is greater than the cross-sectional size of the transmission column 311, so that the rigid transmission member 31 has a larger contact area with the flexible contact member 20, and the flexible contact member 20 can transmit the uterine contraction pressure in a larger range of the pregnant woman's abdomen, thereby improving the accuracy of uterine contraction pressure measurement. The ratio of the cross-sectional size of the end of the transmission column 311 in contact with the connecting portion 35 to the cross-sectional size of the connecting portion 35 ranges from 0.5 to 1.0. If the ratio of the cross-sectional size of the end of the transmission column 311 in contact with the connecting portion 35 to the cross-sectional size of the connecting portion 35 is less than 0.5, the cross-sectional size of the end of the transmission column 311 is small, so that a larger range of the outer periphery of the connecting portion 35 is located outside the end of the transmission column 311, and the outer peripheral area of the connecting portion 35 has a cantilever structure. Since the connecting portion 35 is usually thin, the connecting portion 35 will deform greatly under the uterine contraction pressure, which will affect the transmission of the uterine contraction pressure from the connecting portion 35 to the sensing portion 36, and affect the accuracy of uterine contraction pressure measurement. If the ratio of the cross-sectional size of the end of the transmission column 311 in contact with the connecting portion 35 to the cross-sectional size of the connecting portion 35 is greater than 1.0, the end of the transmission column 311 is partially located outside the connecting portion 35, which will affect the deformation of the sensing portion 36 located at the outer periphery of the connecting portion 35, and further affect the accuracy of uterine contraction pressure measurement. In some embodiments, the ratio of the cross-sectional size of the end of the transmission column 311 in contact with the connecting portion 35 to the cross-sectional size of the connecting portion 35 is 0.5, 0.6, 0.7, 0.8, 0.9 or 1.0, which is not limited herein.

[0059] In the related art, the uterine contraction pressure probe can only measure the uterine contraction pressure of the pregnant woman. If it is necessary to measure the electrocardiosignal of the pregnant woman at the same time, it is necessary to be matched with an electrode sleeve with electrocardio electrodes. The electrode sleeve is sleeved outside the shell of the uterine contraction pressure probe, which will increase the volume of the uterine contraction pressure probe, and will affect the sterilization operation of the uterine contraction pressure probe. In addition, the assembly and disassembly of the electrode sleeve are not convenient, which will result in that the uterine contraction pressure probe has a large volume and is inconvenient to use.

[0060] Please refer to Figure 2 , Figure 3To solve the above technical problems, the uterine contraction pressure probe 100 provided by the present application comprises a shell 10, a plurality of electrocardio electrodes 40 and a control circuit board 50 installed in the accommodating cavity 13, and the control circuit board 50 is used for receiving and processing electrocardio signals. The shell 10 comprises a first shell 11 arranged close to the skin of a pregnant woman during use. The first shell 11 has a first surface 111 close to the skin of a pregnant woman during use, and the plurality of electrocardio electrodes 40 are fixed on the first surface 111 and electrically connected with the control circuit board 50. The plurality of electrocardio electrodes 40 are used for acquiring electrocardio signals of a pregnant woman when the first surface 111 is close to the skin of a pregnant woman, and transmitting the electrocardio signals to the control circuit board 50. When the electrocardio electrodes 40 are attached to the skin of a pregnant woman, the electrocardio signals of the pregnant woman can be determined by measuring the potential difference between two positions, thereby assisting doctors to judge the state of the pregnant woman. The uterine contraction pressure probe 100 comprises the plurality of electrocardio electrodes 40 fixed on the first surface 111 of the first shell 11, so that the electrocardio electrodes 40 are integrated in the first shell 11, which is better than the electrocardio electrodes being sleeved on the shell outside the electrode sleeve. Since the electrode sleeve is not needed to be sleeved on the shell outside, the volume of the uterine contraction pressure probe 100 is not increased, and the disinfection operation of the uterine contraction pressure probe is not affected, so that the volume of the uterine contraction pressure probe 100 can be reduced and the use is facilitated.

[0061] In addition, since there is no influence of the electrode sleeve outside the shell, the flexible contact 20 is facilitated to contact the skin of a pregnant woman, on the one hand, the deformation stroke of the flexible contact 20 can be ensured, and the measurement accuracy of the uterine contraction pressure is improved; on the other hand, the smaller uterine contraction pressure can make the flexible contact 20 generate the deformation required for measurement, and the pressure between the flexible contact 20 and the skin of a pregnant woman can be reduced, thereby preventing the long-time contact between the flexible contact 20 and the skin of a pregnant woman from causing pressure injury to the skin.

[0062] The number of the electrocardio electrodes 40 can be three, wherein two electrocardio electrodes 40 are electrically connected with the control circuit board 50 and form an electrode pair of a lead pair, and the other is a right leg driving electrode. The electrocardio signals of a pregnant woman can be determined by measuring the potential difference between the two electrocardio electrodes 40 in the electrode pair. The number of the electrocardio electrodes 40 can also be six, nine or more, which is not limited here.

[0063] In an embodiment, as shown in Figure 1 , Figure 3 The plurality of electrocardio electrodes 40 are not in contact with the flexible contact 20. That is, the plurality of electrocardio electrodes 40 are arranged outside the flexible contact 20, which can prevent the electrocardio electrodes 40 from affecting the deformation of the flexible contact 20, so that the measurement of the uterine contraction pressure and the measurement of the electrocardio signals will not interfere with each other.

[0064] Please refer to Figure 1 ,Figure 3 In an embodiment, the plurality of ECG electrodes 40 are arranged in a spaced manner around the flexible contact 20 on the first surface 111. The plurality of ECG electrodes 40 are arranged in a spaced manner around the flexible contact 20 so that the plurality of ECG electrodes 40 are relatively dispersed, when the first surface 111 is close to the skin of the pregnant woman, the plurality of ECG electrodes 40 can cover a larger range of the skin of the pregnant woman, thereby increasing the distance between two ECG electrodes 40 in an electrode pair, increasing the potential difference between two ECG electrodes 40 in an electrode pair, and being conducive to improving the accuracy of ECG signal measurement.

[0065] The plurality of ECG electrodes 40 can be electrically connected to the control circuit board 50 through wires. Please refer to Figure 2 Figure 3 In an embodiment, the uterine contraction pressure probe 100 comprises a conversion circuit board 60, the conversion circuit board 60 is installed in the accommodation cavity 13, and the plurality of ECG electrodes 40 are electrically connected to the control circuit board 50 through the conversion circuit board 60. The conversion circuit board 60 is arranged to electrically connect the plurality of ECG electrodes 40 and the control circuit board 50, which is more simple and convenient and more stable in connection between the plurality of ECG electrodes 40 and the control circuit board 50, compared with the plurality of ECG electrodes 40 being electrically connected to the control circuit board 50 through a plurality of wires.

[0066] In an embodiment, as shown in Figure 3 The conversion circuit board 60 is attached to the side of the first housing 11 away from the first surface 111, and the outer edge of the flexible contact 20 is all or partially clamped between the first housing 11 and the conversion circuit board 60. The flexible contact 20 is arranged to be clamped between the first housing 11 and the conversion circuit board 60, which can enhance the reliability of the connection between the flexible contact 20 and the first housing 11, so that the flexible contact 20 is not easy to fall off; in addition, it can also enhance the air tightness between the flexible contact 20 and the first housing 11, thereby reducing the risk of external moisture or liquid invading the inside of the uterine contraction pressure probe 100.

[0067] Please refer to Figure 2 Figure 3 Figure 7 ​​​In an embodiment, the pressure detection assembly 30 comprises a rigid transmission member 31, and the flexible contact member 20 is in contact with the rigid transmission member 31 on a side away from the contact surface 21, and the uterine contraction pressure of the pregnant woman is transmitted through the flexible contact member 20 and the rigid transmission member 31. The adapter circuit board 60 is provided with a second through hole 61, and the adapter circuit board 60 can be substantially annular. The rigid transmission member 31 and the flexible contact member 20 are located in the first through hole 112, and the normal projection of the reference plane where the adapter circuit board 60 is located falls within the second through hole 61. In this way, the opening range of the second through hole 61 is larger than the outer contour size of the rigid transmission member 31, and at least part of the area adjacent to the contact area of the flexible contact member 20 and the rigid transmission member 31, which can ensure that the adapter circuit board 60 does not contact the rigid transmission member 31, and the adapter circuit board 60 does not affect the deformation of the flexible contact member 20 under the uterine contraction pressure, so that the measurement of the uterine contraction pressure and the measurement of the electrocardiosignal do not interfere with each other.

[0068] Please refer to Figure 3 In an embodiment, the edge area 22 of the contact surface 21 is flush with the side of the first surface 111 outside the accommodation cavity 13, and the area of the contact surface 21 except the edge area 22 and part of each electrocardioelectrode 40 protrude from the first surface 111 to the side of the external space of the accommodation cavity 13. In this way, the contact surface 21 does not have a smaller recess, which can facilitate the disinfection and cleaning operation of the contact surface 21.

[0069] In an embodiment, as shown in Figure 3 、 Figure 5 、 Figure 14 Each electrocardioelectrode 40 comprises an electrode sheet 41, the first surface 111 is provided with a mounting groove 115, part of the electrode sheet 41 is embedded in the mounting groove 115, the part of the electrode sheet 41 outside the mounting groove 115 protrudes from the first surface 111 to the side of the external space of the accommodation cavity 13, and the electrode sheet 41 is electrically connected with the control circuit board 50. Embedding part of the electrode sheet 41 in the mounting groove 115 can limit the lateral displacement of the electrode sheet 41, so that the electrocardioelectrode 40 is not easy to fall off. The protrusion of the electrode sheet 41 from the first surface 111 makes it easier for the electrode sheet 41 to contact the skin of the pregnant woman, thereby ensuring the reliability of the acquisition of the electrocardiosignal.

[0070] The electrode sheet 41 can be in contact with the side wall of the mounting groove 115, so that the electrocardioelectrode 40 is not easy to fall off. Please refer to Figure 3 、 Figure 5 、 Figure 14In an embodiment, the electrode sheet 41 comprises a top wall 411 and a ring-shaped side wall 412 connected to one side of the top wall 411, and the mounting groove 115 is ring-shaped, the ring-shaped side wall 412 is embedded in the mounting groove 115, and a part of the first shell 11 is embedded in the inner space of the ring-shaped side wall 412, and the top wall 411 protrudes from the first surface 111 to the outside space of the accommodation cavity 13. By arranging the electrode sheet 41 to comprise the ring-shaped side wall 412 and embedding a part of the first shell 11 in the inner space of the ring-shaped side wall 412, the outer surface and the inner surface of the electrode sheet 41 are both in contact with the side wall of the mounting groove 115, thereby increasing the contact area between the electrode sheet 41 and the first shell 11, and making the connection between the electrocardio electrode 40 and the first shell 11 more reliable.

[0071] The electrode sheet 41 can be electrically connected to the control circuit board 50 through a lead wire. In an embodiment, as shown in FIG. 4, the electrocardio electrode 40 comprises a lead pin 42 connected to the electrode sheet 41. A mounting hole 116 is arranged in the mounting groove 115 of the first surface 111, and the lead pin 42 is fixed in the mounting hole 116. The lead pin 42 is connected to the adapter circuit board 60, and the electrode sheet 41 is electrically connected to the control circuit board 50 through the lead pin 42 and the adapter circuit board 60. The lead pin 42 can be welded to the adapter circuit board 60. By arranging the electrode sheet 41 to be electrically connected to the control circuit board 50 through the lead pin 42 and the adapter circuit board 60, and fixing the lead pin 42 in the mounting hole 116, the lead pin 42 can play a role in fixing the electrode sheet 41, and the lead pin 42 is connected to the adapter circuit board 60, thereby further enhancing the reliability of the connection between the electrocardio electrode 40 and the first shell 11. Figure 3 、 Figure 5 、 Figure 14 The electrode sheet 41 can be electrically connected to the control circuit board 50 through a lead wire. In an embodiment, as shown in FIG. 4, the electrocardio electrode 40 comprises a lead pin 42 connected to the electrode sheet 41. A mounting hole 116 is arranged in the mounting groove 115 of the first surface 111, and the lead pin 42 is fixed in the mounting hole 116. The lead pin 42 is connected to the adapter circuit board 60, and the electrode sheet 41 is electrically connected to the control circuit board 50 through the lead pin 42 and the adapter circuit board 60. The lead pin 42 can be welded to the adapter circuit board 60. By arranging the electrode sheet 41 to be electrically connected to the control circuit board 50 through the lead pin 42 and the adapter circuit board 60, and fixing the lead pin 42 in the mounting hole 116, the lead pin 42 can play a role in fixing the electrode sheet 41, and the lead pin 42 is connected to the adapter circuit board 60, thereby further enhancing the reliability of the connection between the electrocardio electrode 40 and the first shell 11.

[0072] The connection mode between the plurality of electrocardio electrodes 40 and the first shell 11 can be adhesion or clamping, so as to fixedly connect the plurality of electrocardio electrodes 40 to the first shell 11. In an embodiment, the plurality of electrocardio electrodes 40 and the first shell 11 are integrally formed by injection molding process. Integrally injection molding the plurality of electrocardio electrodes 40 and the first shell 11 can enhance the adhesion between the electrocardio electrodes 40 and the first shell 11, thereby improving the reliability of the connection between the electrocardio electrodes 40 and the first shell 11.

[0073] In an embodiment, the uterine contraction pressure probe 100 further comprises a power module (not shown in the figure). The power module is electrically connected to the control circuit board 50. The power module is used to provide electric energy for the uterine contraction pressure probe 100 to work. The power module can comprise a battery, and the battery can be a rechargeable battery. The charging mode of the battery can be wired charging or wireless charging.

[0074] The data transmission mode between the uterine contraction pressure probe 100 and the external host computer can be wired or wireless. In an embodiment, the data transmission mode between the uterine contraction pressure probe 100 and the external host computer is wireless transmission, and the uterine contraction pressure probe 100 further comprises a communication module (not shown in the figure) for communicating with the external host computer. Since the uterine contraction pressure probe 100 does not need to be connected to the external host computer through a data line, the use of the uterine contraction pressure probe 100 is more convenient. The communication module can be one of an NFC communication module, a Bluetooth communication module, a WiFi communication module, and the like.

[0075] The above only describes some embodiments of the present application, and does not limit the protection scope of the present application, and any equivalent device or equivalent process transformation using the content of the present application specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A uterine contraction pressure probe, characterized in that, The device includes a housing, multiple ECG electrodes, and a control circuit board. The housing has a receiving cavity, and the control circuit board is installed in the receiving cavity. The control circuit board is used to receive and process ECG signals. The housing includes a first housing having a first side that is close to the pregnant woman's skin when in use. The plurality of electrocardiogram (ECG) electrodes are fixed to the first side and electrically connected to the control circuit board. The plurality of ECG electrodes are used to acquire the pregnant woman's ECG signal when the first side is close to the pregnant woman's skin and transmit the ECG signal to the control circuit board.

2. The uterine contraction pressure probe according to claim 1, characterized in that, The uterine contraction pressure probe includes a flexible contact and a pressure detection component. The pressure detection component is installed in the accommodating cavity and is used to acquire the uterine contraction pressure information of the pregnant woman. The first surface has a first through hole, the flexible contact is disposed at the first through hole and connected to the first housing, the flexible contact has a contact surface for conforming to the pregnant woman's skin, and the side of the flexible contact facing away from the contact surface contacts the pressure detection component; The plurality of electrocardiogram electrodes are disposed outside the flexible contact.

3. The uterine contraction pressure probe according to claim 2, characterized in that, The plurality of electrocardiogram electrodes are arranged at intervals around the flexible contact on the first surface.

4. The uterine contraction pressure probe according to claim 2, characterized in that, The uterine contraction pressure probe includes an adapter circuit board, which is installed inside the accommodating cavity. The plurality of electrocardiogram electrodes are electrically connected to the control circuit board via the adapter circuit board.

5. The uterine contraction pressure probe according to claim 4, characterized in that, The adapter circuit board is attached to the side of the first housing opposite to the first surface, and the outer edge of the flexible contact is clamped between the first housing and the adapter circuit board in whole or in part.

6. The uterine contraction pressure probe according to claim 4, characterized in that, The pressure detection assembly includes a rigid transmission component, and the side of the flexible contact component facing away from the contact surface contacts the rigid transmission component; The adapter circuit board has a second through hole, and all or part of the rigid transmission component and the flexible contact component are located within the range of the first through hole. The orthographic projection of the adapter circuit board onto the reference plane falls within the second through hole.

7. The uterine contraction pressure probe according to claim 1, characterized in that, Each of the ECG electrodes includes an electrode pad, a mounting groove is formed on the first surface, a portion of the electrode pad is embedded in the mounting groove, and the portion of the electrode pad outside the mounting groove protrudes from the first surface toward the external space of the receiving cavity. The electrode pad is electrically connected to the control circuit board; and / or, The uterine contraction pressure probe includes an adapter circuit board, which is installed in the accommodating cavity. Each ECG electrode includes an electrode pad and a pin, which is connected to the electrode pad. A mounting groove is provided on the first side, and a portion of the electrode pad is embedded in the mounting groove. A mounting hole is provided in the mounting groove on the first side, and the pin is fixed in the mounting hole. The pin is connected to the adapter circuit board.

8. The uterine contraction pressure probe according to claim 7, characterized in that, The electrode sheet includes a top wall and an annular side wall. The annular side wall is connected to one side of the top wall. The mounting groove is annular. The annular side wall is embedded in the mounting groove. A portion of the first housing is embedded in the inner space of the annular side wall. The top wall protrudes from the first surface toward the outer space of the accommodating cavity.

9. The uterine contraction pressure probe according to claim 2, characterized in that, The edge region of the contact surface is flush with the side of the first surface outside the accommodating cavity, and the area of ​​the contact surface other than the edge region and a portion of each ECG electrode protrudes from the first surface toward the external space of the accommodating cavity.

10. The uterine contraction pressure probe according to any one of claims 1-9, characterized in that, The plurality of ECG electrodes are integrally formed with the first housing using an injection molding process.

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