Fetal heart rate monitoring device for midwifery obstetrical nursing

Abstract

The invention discloses a fetal heart monitoring device for midwifery obstetrical nursing, and relates to the technical field of medical instruments, the fetal heart monitoring device comprises a fetal heart monitoring equipment main body and a fetal heart probe, the fetal heart probe is rotatably sleeved with a coupling ring, one end of the coupling ring protrudes out of the surface of the fetal heart probe to form a groove, and the groove bottom of the groove is provided with a dispensing area; when the fetal heart rate monitoring equipment main body is used, the whole dispensing area is coated with the coupling agent; one end of the flattening piece is rotationally connected to the groove wall of the groove through a rotating piece, and the rotating piece is used for limiting the initial angle of the flattening piece; according to the device, the rotary coupling ring and the flattening piece rotate along with the rotary coupling ring, the coupling agent on the periphery of the dispensing area is spread outwards, a thick coating is formed in the center area due to the fact that the flattening piece is not completely covered, the thickened coupling agent in the center forms a pressure buffer layer, the effective thickness of the center area is maintained, and the coupling agent on the outer side of the track of the flattening piece is evenly spread to the periphery of the dispensing area; and the inner side is gathered and retained, so that stable transmission of ultrasonic energy during detection is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, in particular to a fetal heart monitoring device for midwifery and obstetrics nursing. Background Art

[0002] Fetal heart rate monitoring is one of the most important items in prenatal examination. It can reflect the growth and health of the fetus. Once the fetal heart rate is abnormal, necessary rescue measures should be taken immediately. Fetal heart rate monitoring is of great significance in reducing neonatal complications and sequelae, reducing neonatal defect rates and perinatal mortality rates.

[0003] Before doing fetal heart monitoring, you should first apply coupling agent on the probe of the fetal heart monitoring device. The main purpose of the coupling agent is to remove the air between the probe and the skin to ensure the effective transmission of the ultrasonic signal, so as to obtain clear fetal heart monitoring results. If it is applied directly on the belly, air will be brought in when the probe moves, resulting in local bubbles and interfering with the transmission of ultrasonic waves.

[0004] The side of the probe that contacts the skin has a groove. If the groove depth is 0.3mm, it indicates that the coupling agent thickness should not exceed this value. The attenuation of ultrasound in the coupling agent is proportional to the thickness. If the thickness exceeds the safe thickness (such as >0.3mm), the sound wave energy loss increases, which leads to blurred or lost fetal heart signals. Therefore, after applying the coupling agent, medical staff will flatten the coupling agent to keep it at a certain thickness overall.

[0005] However, after the probe, which is completely covered with coupling agent, touches the pregnant woman's belly, it still needs to move and find the accurate fetal heart position. During this process, the probe moves on the skin surface, and the pressure in the central area is higher than that at the edge, so the coupling agent in the central area diffuses outward.

[0006] In the process of locating the fetal heart, doctors often use the center of the probe as a fulcrum to perform a combined operation of "rotation + translation". This process will also aggravate the loss of coupling agent in the central area, making its thickness significantly lower than that in the edge area. The imbalance in the distribution of coupling agent not only leads to a decrease in the efficiency of ultrasonic energy transmission (manifested as a weakening of the amplitude of the fetal heart waveform or intermittent signals), but also causes fragmentary loss of monitoring data due to poor contact in the central area, such as "jumps" or blank segments in the fetal heart rate curve. Summary of the invention

[0007] The purpose of the present invention is to provide a fetal heart monitoring device for midwifery and obstetrics nursing to solve the problems raised in the above background technology.

[0008] In order to solve the above technical problems, the present invention provides a fetal heart monitoring device for midwifery and obstetric care, comprising a fetal heart monitoring device body and a fetal heart probe, a coupling ring is rotatably sleeved on the fetal heart probe, one end of the coupling ring protrudes from the surface of the fetal heart probe to form a groove, and the bottom of the groove has a dripping area; when the fetal heart monitoring device body is used, the coupling agent is coated on the entire dripping area; and further comprising,

[0009] The coating piece has one end rotatably connected to the groove wall of the groove through a rotating piece, and the rotating piece is used to limit the initial angle of the coating piece; the other end extends along the groove diameter of the groove and the extension length is at least set through the groove center. When the coating piece rotates to a position that does not pass through the groove center, a coating with a height difference is formed on the bottom of the groove as the coupling ring rotates.

[0010] Furthermore, the flattening member at least comprises:

[0011] The first flattened portion has one end rotatably connected to the groove wall of the groove through a rotating member, and the other end is bent and extended, and the curvature radius of the bend is the same as the curvature radius of the groove wall of the groove;

[0012] The second flattened portion has one end connected to the extended end of the first flattened portion and the other end extending outward from the tangent direction of the extended end.

[0013] Furthermore, the flattening member further comprises:

[0014] The bottom of the coating piece is tilted, gradually descending from the center of the fetal heart probe to the edge, forming a slope that slopes downward from the inside to the outside. The second coating part is vertically tilted, and its top slopes downward toward the center of the fetal heart probe.

[0015] Furthermore, it also includes:

[0016] An oblique step difference is arranged at the bottom of the second flattened portion, forming a unilateral step-down structure with the step difference as a transition zone, with the high side facing the center of the fetal heart probe and the low side facing the first flattened portion.

[0017] Furthermore, it also includes:

[0018] The inclined surface is arranged at the bottom between the end of the second flattened portion away from the first flattened portion and the step difference. The inclined surface gradually rises from the step difference to the end of the second flattened portion away from the first flattened portion, forming an upward slope.

[0019] Furthermore, it also includes:

[0020] A first bending area, one end of which is connected to an end of the first flattened portion away from the second flattened portion, and the first bending area is bent;

[0021] One end of the second bending zone is connected to an end of the second flattened portion away from the first flattened portion. The second bending zone is bent, and the bending directions of the first bending zone and the second bending zone are both toward the center of the fetal heart probe.

[0022] Furthermore, the coupling ring is also provided with an embedding groove whose side is connected to the groove, the embedding groove extends along the circumference of the coupling ring, and the flattening member is located in the embedding groove;

[0023] The rotating parts include:

[0024] A rotating rod is rotatably connected between the inner bottom wall and the inner top wall of the embedding groove, the outer wall of the rotating rod is connected to a connecting piece, and one end of the first bending area away from the first flattened portion is connected to the outer wall of the connecting piece;

[0025] The connecting piece is arranged asymmetrically radially with the rotating rod as the reference, the two ends of its long axis are long axis ends, the distance between the long axis ends and the rotating rod is the largest, and the two sides of the short axis are side surfaces, the side surfaces are close to the rotating rod, and when the long axis ends abut against the inner wall of the embedded groove, the second bending area is close to the center of the fetal heart probe;

[0026] The coupling ring is also provided with a through slot connected to the embedded slot, and one end of the through slot away from the embedded slot is connected to the outside of the coupling ring. The through slot extends along the circumference of the coupling ring. A knob is also installed on the outer wall of the rotating rod, and a partial area of ​​the knob extends through the through slot to the outside of the coupling ring.

[0027] Furthermore, the rotating member further comprises:

[0028] A groove extending along the outer periphery of the connector and terminating at a symmetrical position at the other end of the major axis after surrounding half of the circumference of the connector, forming a semi-enclosed arc-shaped connector with an opening facing outward and uniform depth;

[0029] A card block is slidably buckled in the groove, and the coupling ring is also provided with a strip opening connected to the embedded groove. One end of the strip opening away from the embedded groove is connected to the outside. One end of the card block extends from the groove to the inside of the strip opening, and passes through the strip opening to the outside of the coupling ring. The outer wall of the card block is in close contact with the inner wall of the strip opening.

[0030] The outer wall of the rotating rod is provided with a tooth column, and the connecting piece is provided with a tooth groove adapted to the tooth column, and the connecting piece is sleeved on the tooth column through the tooth groove.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] 1. In the present invention, the coupling ring is rotated, and the flattening member rotates therewith, and the coupling agent on the periphery of the drop coating area is spread outward, while the central area forms a thicker coating because the flattening member is not completely covered. The thickened coupling agent in the center forms a pressure buffer layer to maintain the effective thickness of the central area. The coupling agent on the outer side of the flattening member track is evenly spread to the periphery of the drop coating area, and the inner side is gathered and retained, ensuring the stable transmission of ultrasonic energy during detection.

[0033] 2. In the present invention, the second flattened portion forms an inclined posture when rotating with the coupling ring, and its inclined design partially offsets the centrifugal force to form a coupling agent retention area in the central area. When the flattened member rotates around the center of the probe, the movement trajectory of the second flattened portion always moves along the outer edge of the central annular area, confining part of the coupling agent in the central annular area to form a thickened layer higher than the periphery. When the probe contacts the skin, the thickened layer continuously releases the reserved coupling agent through the pressure difference to maintain the effective coating thickness of the central area.

[0034] 3. In the present invention, when the bottom left side of the step difference passes over the surface of the coupling agent, the right side uses the height difference to block the overflow of the coupling agent in the central thickening area. The viscosity of the coupling agent itself further inhibits autonomous diffusion and maintains the stability of the central reserve layer. During the rotation process, the right side of the second flattened portion always moves along the periphery of the central annular area to ensure that the thickness of the coupling agent at the outer edge of the area is lower than that of the internal reserve layer, forming the gradient distribution required for pressure buffering. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the external structure of the present invention;

[0036] Figure 2 It is a schematic diagram of the connection structure between the fetal heart probe and the coupling ring in the present invention;

[0037] Figure 3 It is a schematic diagram of the connection structure between the coupling ring and the flat coating member in the present invention;

[0038] Figure 4 It is a schematic diagram of the appearance of the fetal heart probe and the coupling ring in the present invention;

[0039] Figure 5 It is a schematic diagram of the internal structure of the embedding groove in the present invention;

[0040] Figure 6 It is a schematic diagram of the connection structure between the fetal heart probe and the flat coating member in the present invention;

[0041] Figure 7 It is a schematic diagram of the connection structure between the transfer rod and the gear column in the present invention;

[0042] Figure 8 A top view of the flat-coated member of the present invention;

[0043] Fig. 9It is a front view of the flat-coated member in the present invention;

[0044] Fig.10 It is a structural schematic diagram of the coating flattening member and the circular trajectory in the present invention;

[0045] Fig.11 Figure 2 A magnified view of the structure at center A;

[0046] Fig.12 Figure 5 A magnified view of the structure at B in the middle;

[0047] Fig.13 Figure 6 Enlarged view of the structure at C in the middle.

[0048] In the figure: 1. Main body of fetal heart monitoring equipment;

[0049] 2. Fetal heart probe; 3. Coupling ring; 4. Embedding groove; 5. Coating member; 501. First coating portion; 502. First bending area; 503. Second coating portion; 504. Step difference; 505. Inclined surface; 506. Second bending area; 6. Connector; 601. Long axis end; 602. Side surface; 603. Groove; 604. Block; 7. Turnbar; 8. Gear column; 9. Tooth groove; 10. Circular track; 1001. Drip area; 11. Through groove; 12. Knob; 13. Strip opening. DETAILED DESCRIPTION

[0050] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0051] The present invention provides a technical solution:

[0052] See also Figure 1-Figure 13 As shown, a fetal heart monitoring device for midwifery and obstetric care includes a fetal heart monitoring device body 1 and a fetal heart probe 2, a coupling ring 3 is rotatably sleeved on the fetal heart probe 2, one end of the coupling ring 3 protrudes from the surface of the fetal heart probe 2 to form a groove, and the bottom of the groove has a dripping area 1001; when the fetal heart monitoring device body 1 is used, the coupling agent is coated on the entire dripping area 1001; and further includes,

[0053] The coating member 5 has one end rotatably connected to the groove wall of the groove through a rotating member, and the rotating member is used to limit the initial angle of the coating member 5; the other end extends along the groove diameter of the groove and the extension length is at least set through the groove center. When the coating member 5 rotates to a position that does not pass through the groove center, a coating with a height difference is formed on the bottom of the groove as the coupling ring 3 rotates.

[0054] The inner wall of the coupling ring 3 is rotatably connected to the outer wall of the fetal heart probe 2, and the top of the coupling ring 3 protrudes from the monitoring end surface of the fetal heart probe 2. Figure 2 and Figure 3 As can be seen in the figure, the part of the coupling ring 3 protruding from the detection end face of the fetal heart probe 2 cooperates with the fetal heart probe 2 to form a groove. First, the initial position of the coating piece 5 is in contact with the edge of the coupling ring 3, that is, the inner wall of the groove. After squeezing the coupling agent into the area of ​​the drop coating area 1001, the coating piece 5 is rotated so that the coating piece 5 moves away from the end connected to the coupling ring 3 to the center close to the fetal heart probe 2, that is, Fig.10 The appearance shown in

[0055] Then with Figure 6 From the perspective of FIG. 1 , it can be seen that the end of the flat coating member 5 close to the center area of ​​the fetal heart probe 2 is located on the left side of the center area. Figure 7 For example, after the coating member 5 is away from the edge of the groove, the end of the coating member 5 that is not connected to the rotating member is offset toward the central area of ​​the fetal heart probe 2. Figure 6 The coupling ring 3 rotates counterclockwise around the periphery of the fetal heart probe 2, and the coating member 5 rotates along with the coupling ring 3. Then, the right side of the coating member 5 pushes the coupling agent and spreads it, and the coupling agent is also thrown to the edge of the fetal heart probe 2 due to the centrifugal force.

[0056] visible Fig.10 It is given in FIG. 1 that, since the end of the coating member 5 away from the edge of the fetal heart probe 2 does not reach the center of the fetal heart probe 2, only the coupling agent in the outer circle of the drop coating area 1001 is spread, and the end of the coating member 5 located in the drop coating area 1001 will form a circular track 10 after rotation. Therefore, the movement track of the end of the coating member 5 located in the drop coating area 1001 always moves around the edge of the circular track 10, and the area within the circular track 10 is the area not scraped by the coating member 5.

[0057] Therefore, the coupling agent in the area of ​​the circular track 10 is thicker than the coupling agent outside the area of ​​the circular track 10. The circular track 10 is the central area of ​​the fetal heart probe 2. The thickened coupling agent distribution in the central area solves the problem of fluid loss when the fetal heart probe 2 moves through a pressure compensation mechanism. The initial thickness of the coupling agent in the central area is 30%-50% thicker than that at the edge, forming a pressure buffer layer. When the fetal heart probe 2 moves to generate contact pressure, this area can release about 40% of the lost reserve coupling agent to maintain the effective thickness.

[0058] To put it simply, when the circular track 10 on the fetal heart probe 2 contacts the pregnant woman's belly, the pressure on the circular track 10 is so strong that the coupling agent will spread outward. The thickening of the coupling agent in the circular track 10 is like preparing a "reserve" for the coupling agent. When the coupling agent in the central area is lost due to pressure, the reserved coupling agent can be replenished to maintain sufficient coupling agent in the circular track 10 to ensure the energy transmission of the ultrasonic wave.

[0059] When the coupling agent needs to be spread, the coupling ring 3 is held by hand and rotated along the periphery of the fetal heart probe 2. When the coupling ring 3 and the fetal heart probe 2 are clamped, the surface of the fetal heart probe 2 is just parallel to the inner bottom wall of the embedding groove 4.

[0060] It is worth pointing out that the coupling agent is fully coated in the dripping area 1001, and the end of the coating member 5 away from the edge of the fetal heart probe 2 extends in the dripping area 1001. Therefore, the coupling agent in the area between the edge of the circular track 10 and the dripping area 1001 will be spread outward and spread outside the dripping area 1001, while the coupling agent in the circular track 10 is gathered by the coating member 5. Therefore, it can be ensured that enough coupling agent is spread by the coating member 5 and enough coupling agent remains in the circular track 10.

[0061] See also Figure 7-Figure 9 , the coating member 5 at least comprises,

[0062] The first flattened portion 501 has one end rotatably connected to the groove wall of the groove through a rotating member, and the other end is bent and extended, and the curvature radius of the bend is the same as the curvature radius of the groove wall of the groove;

[0063] The second flattened portion 503 has one end connected to the extended end of the first flattened portion 501 and the other end extending outward from the tangent direction of the extended end.

[0064] The first coating portion 501 is responsible for spreading the remaining coupling agent on the surface of the fetal heart probe 2. At the same time, the curved outer arc surface of the first coating portion 501 is used to contact the coupling agent and push it to spread. The outer arc surface of the first coating portion 501 forms a "shovel-shaped" structure, which will produce a directional guide effect when rotating. The curved surface of the outer arc surface will guide the coupling agent to flow along the tangent direction of the arc surface, similar to the principle of a spiral pump, so that the liquid can be more orderly diffused to the edge of the fetal heart probe 2 to reduce splashing. At the same time, when the first coating portion 501 rotates, the outer arc surface will form a "peeling effect" due to centrifugal force and curved surface guide, and the liquid attached to the surface of the first coating portion 501 will be thrown out to reduce residue.

[0065] Combination Figure 7For example, after the coating member 5 is away from the edge of the groove, the second coating portion 503 is offset toward one side of the central area of ​​the fetal heart probe 2. When the coating member 5 rotates, the inclined second coating portion 503 reduces the outward thrust on the coupling agent near the center. Instead, the rotation direction and the centrifugal force direction are partially offset to form a retention area, that is, the area of ​​the circular track 10, so that most of the coupling agent is concentrated in the circular track 10, so that the thickness of the coupling agent in the area of ​​the circular track 10 is higher than the coupling agent in the peripheral area of ​​the circumferential track 10.

[0066] like Fig.10 From the perspective of , when the coating member 5 here rotates around the center point of the fetal heart probe 2, the movement trajectory of the second coating portion 503 always moves around the edge of the circular trajectory 10, so the second coating portion 503 can gather part of the coupling agent within the circular trajectory 10.

[0067] See also Figure 7-Figure 9 , the flat coating member 5 also includes,

[0068] The bottom of the coating member 5 is tilted, gradually descending from the center of the fetal heart probe 2 to the edge, forming a slope that slopes downward from the inside to the outside. The second coating portion 503 is vertically tilted, and its top slopes downward toward the center of the fetal heart probe 2.

[0069] The coating member 5 scrapes the coupling agent in the circular track 10 through the second coating portion 503. Fig. 9 It can be seen that the bottom end of the flat coating member 5 is gradually tilted upward from left to right, which means that the closer the bottom end of the flat coating member 5 is to the circumferential track 10, the farther the bottom end is from the surface of the fetal heart probe 2, and the right bottom end of the flat coating member 5 is gradually close to the surface of the fetal heart probe 2.

[0070] Since the coupling agent is mainly concentrated in the circular track 10 after being applied, and the accumulated coupling agent is very thick, the second flattening portion 503 can scrape off the coupling agent on the top, and then distribute it around the periphery of the circular track 10 through the first flattening portion 501, while the coupling agent below the bottom of the second flattening portion 503 will not be scraped off by the second flattening portion 503, so that a sufficient thickness of coupling agent is retained in the area of ​​the circular track 10;

[0071] As for the vertical inclination of the second flattened portion 503, Figure 7It can be seen that, since the right side of the coating member 5 is used to push the coupling agent, the second coating portion 503 is tilted downward in the direction of pushing the coupling agent. When the second coating portion 503 vertically pushes the coupling agent, it is in vertical contact with the coupling agent at 90°. When the second coating portion 503 is tilted, its contact angle with the coupling agent becomes an acute angle. Firstly, it can effectively reduce the resistance of the second coating portion 503 scraping the coupling agent. Secondly, when the second coating portion 503 is tilted at 30°-45°, the contact area is expanded. At the same time, the tangential component force causes the second coating portion 503 to produce a "floating effect" when sliding along the fetal heart probe 2, which is similar to the action mechanism of skis and snow. The floating effect allows the coupling agent to form a more stable laminar structure in the shear flow, and the thickness uniformity is improved.

[0072] See also Fig. 9 , also includes,

[0073] An oblique step 504 is provided at the bottom of the second flattened portion 503 , forming a single-side stepped structure with the step 504 as a transition zone, with the high side facing the center of the fetal heart probe 2 and the low side facing the first flattened portion 501 .

[0074] by Fig. 9 From the perspective of FIG. 1 , the bottom of the second flattening portion 503 is divided into two parts, the left part and the right part, by the step difference 504. The left part is closer to the center of the fetal heart probe 2, so the left part is farther from the surface of the fetal heart probe 2, while the right part is relatively closer to the surface of the fetal heart probe 2. The left part is used to scrape the coupling agent of the uppermost layer, so that the first flattening portion 501 only distributes the coupling agent pushed out by the second flattening portion 503, rather than all the coupling agent in the central area, so as to ensure that the coupling agent in the central area has a certain thickness.

[0075] The step difference 504 corresponds vertically to the edge line of the circular trajectory 10. Fig.10 It can also be seen that the middle part of the second flat coating portion 503 is always on the edge line of the circular track 10, which is the part where the step 504 is located. When the second flat coating portion 503 passes over the coupling agent in the central area, the bottom of the second flat coating portion 503 located on the left side of the step 504 will rub the surface of the coupling agent, while the right area below the left area of ​​the step 504 will block the coupling agent with a higher thickness in the circular track 10 through the step 504 with a height difference, further preventing a large amount of coupling agent in the circular track 10 from flowing to the periphery of the circular track 10. At the same time, the coupling agent is sticky and will not spread out easily.

[0076] Still Fig. 9 From the perspective of the embodiment, the bottom of the second flattened portion 503 to the right of the step difference 504 is located on the periphery of the circular track 10, so this portion is closer to the surface of the fetal heart probe 2. Similar to the first flattened portion 501, the coupling agent thickness on the periphery of the circular track 10 is thinner than that on the inside of the circular track 10.

[0077] See also Fig. 9 , also includes,

[0078] The inclined surface 505 is disposed at the bottom between the end of the second flattened portion 503 away from the first flattened portion 501 and the step 504. The inclined surface 505 gradually rises from the step 504 to the end of the second flattened portion 503 away from the first flattened portion 501, forming an upward slope.

[0079] The upwardly inclined end of the inclined surface 505 is closer to the center of the fetal heart probe 2, and then when the inclined surface 505 pushes the coupling agent piled together, the coupling agent can flow from high to low and gradually diffuse. Due to the effect of gravity, the coupling agent will flow downward along the slope, thereby forming a more regular distribution on the fetal heart probe 2, and at the same time make the coupling agent thicker near the center, and then the thickness decreases toward the periphery, more effectively compensating for the diffusion loss caused by the pressure generated by the subsequent fetal heart probe 2 contacting the pregnant woman's belly.

[0080] See also Figure 6-Figure 13 , also includes,

[0081] The first bending area 502 has one end fixedly connected to one end of the first flattened portion 501 away from the second flattened portion 503, and the first bending area 502 is bent;

[0082] One end of the second bending zone 506 is fixedly connected to one end of the second flattened portion 503 away from the first flattened portion 501 . The second bending zone 506 is bent, and the bending directions of the first bending zone 502 and the second bending zone 506 are both toward the center of the fetal heart probe 2 .

[0083] by Figure 8 From the perspective of Figure 8 As can be seen in the figure, the arc direction of the second bending area 506 and the first bending area 502 are both rightward. When the second flattening part 503 rotates around the fetal heart probe 2 together with the flattening part 5, the second flattening part 503 is used to push the coupling agent near the center area, and the inner arc of the second bending area 506 will scratch the coupling agent. Since the second bending area 506 is bent in the direction of contact with the coupling agent, the second bending area 506 will exert a thrust on the coupling agent when scratching the coupling agent.

[0084] In the central area of ​​the fetal heart probe 2, due to the high pressure, the coupling agent tends to spread outwards, and the second bending area 506 blocks and guides the coupling agent that might originally spread outwards, and gathers toward the central area of ​​the fetal heart probe 2, which helps to maintain the thickness of the coupling agent in the central area and optimize the distribution of the coupling agent;

[0085] The coupling agent distributed to the edge of the fetal heart probe 2 by the first flattened portion 501 will be blocked by the first bending area 502, so that the coupling agent will not be pushed outwards after reaching the first bending area 502, thereby limiting the diffusion range of the coupling agent.

[0086] See also Figure 2-Figure 13 The coupling ring 3 is also provided with an embedding groove 4 whose side is connected with the groove, and the embedding groove 4 extends along the circumference of the coupling ring 3, and the coating member 5 is located in the embedding groove 4;

[0087] The rotating parts include:

[0088] The rotating rod 7 is rotatably connected between the inner bottom wall and the inner top wall of the embedding groove 4, the outer wall of the rotating rod 7 is connected to the connecting member 6, and the end of the first bending area 502 away from the first flattened portion 501 is fixedly connected to the outer wall of the connecting member 6;

[0089] The connecting member 6 is arranged asymmetrically radially with the rotating rod 7 as the reference, with the two ends of its long axis being the long axis ends 601, the long axis ends 601 being spaced the largest from the rotating rod 7, and the two sides of its short axis being the side surfaces 602, the side surfaces 602 being close to the rotating rod 7, and when the long axis ends 601 abut against the inner wall of the embedding groove 4, the second bending area 506 is close to the center of the fetal heart probe 2;

[0090] The coupling ring 3 is also provided with a through groove 11 connected with the embedding groove 4. One end of the through groove 11 away from the embedding groove 4 is connected with the outside of the coupling ring 3. The through groove 11 extends along the circumference of the coupling ring 3. A knob 12 is also fixedly mounted on the outer wall of the rotating rod 7. A partial area of ​​the knob 12 extends through the through groove 11 to the outside of the coupling ring 3.

[0091] In the initial state, the coating piece 5 is located inside the embedding groove 4, and after the coupling agent is spread, the coating piece 5 will be retracted into the embedding groove 4 to avoid affecting the fetal heart probe 2 from contacting the pregnant woman's belly. Turning the knob 12 can drive the rotating rod 7 to rotate, and the rotating rotating rod 7 will drive the connecting piece 6 to rotate together. Similarly, the connecting piece 6 will also drive the coating piece 5 to rotate around the rotating rod 7 after rotating. Fig.13 It can be seen that the distance between the two side surfaces 602 and the rotating rod 7 is closer than the distance between the long axis end 601 and the rotating rod 7. Therefore, the distance between the long axis end 601 and the inner wall of the embedded groove 4 is closer than the distance between the side surface 602 and the inner wall of the embedded groove 4. Fig.12 In the middle state, the side surface 602 does not contact the inner wall of the embedding groove 4, and the coating member 5 is also located inside the embedding groove 4;

[0092] Back to Fig.13In the perspective of , the connecting member 6 rotates until the long axis end 601 abuts against the inner wall of the embedding groove 4. Then, in this state, due to the abutment between the long axis end 601 and the embedding groove 4, the connecting member 6 cannot rotate any further. At this time, the position where the coating member 5 stays is exactly the position where the step difference 504 is vertically aligned with the edge line of the circular track 10;

[0093] exist Fig.11 From the perspective of FIG. 1 , the through slot 11 is responsible for exposing a portion of the knob 12 to the outside through the through slot 11 , so that the user can rub the knob 12 with his fingers to rotate it.

[0094] See also Figure 7-Figure 13 , the rotating part also includes,

[0095] Groove 603, which extends along the outer periphery of the connector 6, surrounds half of the circumference of the connector 6 and terminates at a symmetrical position at the other end of the long axis, forming a semi-enclosed arc-shaped connector 6 with an opening facing outward and a uniform depth;

[0096] A block 604 is slidably buckled in the groove 603. The coupling ring 3 is also provided with a strip opening 13 connected to the embedded groove 4. One end of the strip opening 13 away from the embedded groove 4 is connected to the outside. One end of the block 604 extends from the groove 603 to the inside of the strip opening 13, and passes through the strip opening 13 to the outside of the coupling ring 3. The outer wall of the block 604 is in close contact with the inner wall of the strip opening 13.

[0097] A tooth column 8 is fixedly mounted on the outer wall of the rotating rod 7 , and a tooth groove 9 adapted to the tooth column 8 is formed through the connecting member 6 , and the connecting member 6 is sleeved on the tooth column 8 through the tooth groove 9 .

[0098] The block 604 extends to the outside through the strip opening 13. When the connecting member 6 rotates, the groove 603 will slide along the outer wall of the block 604, so the block 604 will not rotate with the connecting member 6. When the rotating rod 7 rotates, the tooth column 8 is driven to rotate together. The tooth column 8 has a plurality of teeth, and the teeth are engaged with the tooth grooves 9. Therefore, even if the connecting member 6 is sleeved on the tooth column 8 through the tooth grooves 9, the tooth column 8 can drive the tooth grooves 9 and the connecting member 6 through the teeth when it rotates, and the connecting member 6 can also move vertically along the tooth column 8 through the tooth grooves 9.

[0099] Before applying the coupling agent, the flattened member 5 can be rotated out of the embedding groove 4 so that the flattened member 5 stays as shown in FIG. Figure 6 and Fig.10The coating piece 5 is in the correct position. If you forget to rotate the coating piece 5 out before adding the coupling agent, you can also squeeze the coupling agent on the fetal heart probe 2 and manually move the block 604 upward along the strip opening 13. Then the block 604 can lift the connecting piece 6 and move it upward along the outer wall of the tooth column 8. When the connecting piece 6 moves upward, it will also drive the coating piece 5 to move upward together, so that the coating piece 5 is moved upward away from the coupling agent, so as to prevent the coupling agent from being pushed to the edge of the fetal heart probe 2 when the coating piece 5 is rotated out.

[0100] After the coupling agent is spread, the clamping block 604 can be lifted to move the coating member 5 upward for a short distance to prevent the movement of the coating member 5 from disrupting the uniform spreading of the coupling agent.

Claims

1. A fetal heart monitoring device for midwifery and obstetric care, comprising a fetal heart monitoring device body (1) and a fetal heart probe (2), wherein a coupling ring (3) is rotatably sleeved on the fetal heart probe (2), one end of the coupling ring (3) protrudes from the surface of the fetal heart probe (2) to form a groove, and the bottom of the groove has a dripping area (1001); when the fetal heart monitoring device body (1) is used, a coupling agent is applied to the entire dripping area (1001); characterized in that, Also includes, A coating member (5) has one end rotatably connected to the groove wall of the groove through a rotating member, and the rotating member is used to limit the initial angle of the coating member (5); The other end extends along the groove diameter of the groove and the extension length is at least arranged to pass through the groove center. When the coating member (5) rotates to a position not passing through the groove center, a coating with a height difference is formed on the groove bottom as the coupling ring (3) rotates.

2. A fetal heart rate monitoring device for midwifery and obstetrics care as claimed in claim 1, characterized in that: The coating member (5) at least comprises: A first flattened portion (501) has one end rotatably connected to the groove wall of the groove through a rotating member, and the other end is bent and extended, and the curvature radius of the bend is the same as the curvature radius of the groove wall of the groove; The second flattened portion (503) has one end connected to the extended end of the first flattened portion (501) and the other end extending outward from the tangent direction of the extended end.

3. A fetal heart rate monitoring device for midwifery and obstetrics nursing as claimed in claim 2, characterized in that: The coating member (5) further comprises: The bottom of the coating member (5) is tilted and gradually descends from the center of the fetal heart probe (2) to the edge, forming a slope that slopes downward from the inside to the outside. The second coating portion (503) is vertically tilted and its top slopes downward toward the center of the fetal heart probe (2).

4. A fetal heart rate monitoring device for midwifery and obstetrics nursing as claimed in claim 3, characterized in that: Also includes, An oblique step difference (504) is provided at the bottom of the second flattened portion (503), forming a single-side stepped structure with the step difference (504) as a transition zone, with the high side facing the center of the fetal heart probe (2) and the low side facing the first flattened portion (501).

5. A fetal heart rate monitoring device for midwifery and obstetrics care as claimed in claim 4, characterized in that: Also includes, The inclined surface (505) is arranged at the bottom between the end of the second flattened portion (503) away from the first flattened portion (501) and the step difference (504), and the inclined surface (505) gradually rises from the step difference (504) to the end of the second flattened portion (503) away from the first flattened portion (501), forming an upward slope.

6. A fetal heart rate monitoring device for midwifery and obstetrics care as claimed in claim 5, characterized in that: Also includes, A first bending area (502), one end of which is connected to an end of the first flattened portion (501) away from the second flattened portion (503), and the first bending area (502) is arranged in a curved manner; One end of the second bending zone (506) is connected to an end of the second flattened portion (503) away from the first flattened portion (501), and the second bending zone (506) is bent, and the bending directions of the first bending zone (502) and the second bending zone (506) are both toward the center of the fetal heart probe (2).

7. A fetal heart rate monitoring device for midwifery and obstetrics care as claimed in claim 6, characterized in that: The coupling ring (3) is also provided with an embedding groove (4) whose side is connected to the groove, the embedding groove (4) extends along the circumference of the coupling ring (3), and the coating member (5) is located in the embedding groove (4); The rotating parts include: A rotating rod (7) is rotatably connected between the inner bottom wall and the inner top wall of the embedding groove (4); the outer wall of the rotating rod (7) is connected to a connecting piece (6); and one end of the first bending area (502) away from the first flattened portion (501) is connected to the outer wall of the connecting piece (6); The connecting member (6) is arranged asymmetrically radially with the rotating rod (7) as a reference, with the two ends of its long axis being long axis ends (601) and the distance between the long axis ends (601) and the rotating rod (7) being the largest, and the two sides of the short axis being side surfaces (602), the side surfaces (602) being close to the rotating rod (7), and when the long axis ends (601) abut against the inner wall of the embedding groove (4), the second bending area (506) is close to the center of the fetal heart probe (2); The coupling ring (3) is further provided with a through groove (11) communicating with the embedded groove (4); one end of the through groove (11) away from the embedded groove (4) is communicated with the outside of the coupling ring (3); the through groove (11) extends along the circumference of the coupling ring (3); a knob (12) is further mounted on the outer wall of the rotating rod (7); a partial area of ​​the knob (12) passes through the through groove (11) and extends to the outside of the coupling ring (3).

8. A fetal heart rate monitoring device for midwifery and obstetrics care as claimed in claim 7, characterized in that: The rotating member also includes: A groove (603), the groove (603) extending along the outer periphery of the connecting piece (6), surrounding half of the periphery of the connecting piece (6) and terminating at a symmetrical position at the other end of the long axis, forming a semi-enclosed arc-shaped connecting piece (6) with an opening facing outward and a uniform depth; A clamping block (604) is slidably buckled in the groove (603), and the coupling ring (3) is also provided with a strip opening (13) connected to the embedded groove (4). One end of the strip opening (13) away from the embedded groove (4) is connected to the outside. One end of the clamping block (604) extends from the groove (603) to the inside of the strip opening (13), and passes through the strip opening (13) to the outside of the coupling ring (3). The outer wall of the clamping block (604) is in close contact with the inner wall of the strip opening (13). The outer wall of the rotating rod (7) is provided with a tooth column (8), and the connecting piece (6) is provided with a tooth groove (9) adapted to the tooth column (8), and the connecting piece (6) is sleeved on the tooth column (8) through the tooth groove (9).

Images