Fetal heart stethoscope

Abstract

The utility model belongs to the technical field of medical instruments, and particularly relates to a fetal heart stethoscope. The fetal heart stethoscope comprises a fetal heart stethoscope body and an auscultation probe, a cylinder is vertically fixed to one side of the fetal heart stethoscope body, the bottom of the cylinder is sealed, a first through hole which is communicated up and down is formed in the bottom of the cylinder, a fixing pipe corresponding to the first through hole is vertically fixed to the bottom of the cylinder, and a sleeve is vertically arranged in the cylinder; a screw in threaded fit with the sleeve is arranged in the sleeve, and a piston sliding up and down in the sleeve is arranged at the bottom of the sleeve. According to the fetal heart stethoscope, the barrel is fixed to the side wall of the fetal heart stethoscope body, and a coupling agent can be sucked into the barrel from the fixing pipe through the screw, the sleeve and the piston, so that the coupling agent can be carried, and the fetal heart stethoscope is convenient to carry; and through threaded fit of the screw and the sleeve, the top end of the screw can be prevented from exceeding the barrel too much, so that carrying is relatively convenient, and operation is also convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical equipment, in particular to a fetal heart rate stethoscope. Background Art

[0002] In order to improve the health care level of pregnant women and prevent fetal abnormalities, it is necessary to monitor the fetal heart rate. Generally, the fetal heart rate is monitored through a fetal heart stethoscope (also known as a fetal tone stethoscope). The strength and frequency of the fetal tone are used to judge the development of the fetus. With the development of science and technology, there are two types of fetal heart stethoscopes.

[0003] One is a multifunctional stethoscope, which can be used to listen to fetal sounds when using a bell-shaped stethoscope head, and can be used to listen to cardiovascular murmurs, lung sounds, intestinal peristalsis sounds, etc. when using a flat or table-shaped stethoscope head. This stethoscope requires higher professionalism and has a lower sound. Another is a Doppler fetal heart rate stethoscope, which is an instrument made using the ultrasonic Doppler principle and can hear fetal sounds on the abdominal wall of pregnant women. This stethoscope is more convenient to use and is commonly used in hospitals and at home.

[0004] The Doppler fetal heart rate stethoscope includes a stethoscope body and a stethoscope probe, which is connected to the stethoscope body through a line. When in use, coupling agent needs to be applied on the stethoscope probe. However, in actual use, there is no device for storing coupling agent on the existing stethoscope body, and medical staff need to carry the coupling agent separately. Generally, the coupling agent bottle is placed in the pocket of the medical staff for carrying. In this way, firstly, the coupling agent has weight when placed in the pocket, which makes it inconvenient and uncomfortable for the medical staff to move. Secondly, sometimes the coupling agent is forgotten, and the medical staff needs to go back and get it again, which wastes time. Utility Model Content

[0005] The utility model aims to provide a fetal heart stethoscope, which is convenient for carrying a coupling agent.

[0006] The fetal heart stethoscope comprises a fetal heart stethoscope body and a stethoscope probe, a cylinder is vertically fixed on one side of the fetal heart stethoscope body, the bottom of the cylinder is sealed, a first through hole communicating with each other up and down is opened at the bottom of the cylinder, a fixing tube is vertically fixed at the bottom of the cylinder corresponding to the first through hole, a sleeve is vertically arranged in the cylinder, a screw threadedly matched therewith is arranged in the sleeve, and a piston sliding up and down in the cylinder is arranged at the bottom of the sleeve.

[0007] Furthermore, the piston comprises a fixing plate of a circular structure, and an outer wall of the fixing plate is fixedly sleeved with a sealing ring in contact with an inner wall of the cylinder.

[0008] Furthermore, the height of the cylinder is smaller than the height of the fetal heart stethoscope body, the horizontal height of the bottom surface of the fetal heart stethoscope body is lower than the horizontal height of the bottom end of the fixed tube, and the horizontal height of the top end of the cylinder is lower than the horizontal height of the top surface of the fetal heart stethoscope body.

[0009] Furthermore, when the bottom surface of the fixing plate contacts the inner bottom surface of the cylinder, the top end of the screw does not exceed the top of the fetal heart stethoscope body.

[0010] Furthermore, a limit block for limiting the upward movement distance of the fixed plate is fixed to the upper middle portion of the inner wall of the cylinder.

[0011] Furthermore, a fixing block is horizontally fixed to the top end of the outer side wall of the sleeve, and a sliding groove is provided on the inner side wall of the cylinder body for the fixing block to be inserted and slide up and down.

[0012] Furthermore, two fixing blocks are provided, and the two fixing blocks are symmetrically distributed with the sleeve as the center.

[0013] Furthermore, the outer wall of the cylinder is a rectangular structure.

[0014] Furthermore, the top of the cylinder is open, and a cover plate for sealing the top of the cylinder is provided on the top of the cylinder, and a second through hole for the top end of the screw to pass through is provided on the cover plate.

[0015] Furthermore, a handle is fixed to the top end of the screw.

[0016] Furthermore, the top of the slide groove is at a distance from the top surface of the cylinder, the length of the fixed block is smaller than the distance from the outer wall of the sleeve to the inner wall of the cylinder, a sliding block is horizontally arranged between the fixed block and the inner wall of the cylinder, and an installation groove for the slider to be inserted and slide horizontally is opened at one end of the fixed block close to the inner wall of the cylinder, and a spring is horizontally fixed between the slider and the bottom of the installation groove. When the spring is in a natural state, one end of the slider extends beyond the installation groove and is located in the slide groove of the inner wall of the cylinder.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] The utility model fixes a cylinder on the side wall of the fetal heart stethoscope body, and then the coupling agent can be sucked into the cylinder from the fixed tube through the screw, the sleeve and the piston, so that the coupling agent can be carried conveniently; and the threaded cooperation of the screw and the sleeve can prevent the top of the screw from exceeding the cylinder too much, so that it is convenient to carry and easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 for Figure 1A schematic diagram of the enlarged structure at A in the middle;

[0021] Figure 3 for Figure 1 A schematic diagram of the front view structure of

[0022] The names of the components in the figure are: 1. fetal heart stethoscope body 2. auscultation probe 3. cylinder 4. slider 5. cover plate 6. fixing block 7. handle 8. screw 9. sleeve 10. sealing ring 11. fixing plate 12. limit block 13. fixing tube 14. spring. DETAILED DESCRIPTION

[0023] The present invention is further described below through specific embodiments in conjunction with the accompanying drawings, but the present invention is not limited thereto. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

[0024] A fetal heart rate stethoscope described in this embodiment, such as Figure 1 , Figure 2 and Figure 3 As shown, the fetal heart stethoscope body 1 and the stethoscope probe 2 are connected by a line. A fixing clip for fixing the stethoscope probe 2 is arranged on the left side of the fetal heart stethoscope body 1. The fetal heart stethoscope body 1 and the stethoscope probe 2 are existing known technologies and are the structure of an existing Doppler fetal heart stethoscope.

[0025] A barrel 3 is vertically fixed on one side of the fetal heart stethoscope body 1, and the barrel 3 is fixed to the right side wall of the fetal heart stethoscope body 1, so that the positions of the barrel 3 and the stethoscope probe 2 on the fetal heart stethoscope body 1 do not affect each other. The bottom of the barrel 3 is sealed, and a first through hole communicating with each other from top to bottom is opened at the bottom of the barrel 3. Corresponding to the first through hole, a fixing tube 13 is vertically fixed at the bottom of the barrel 3, and the fixing tube 13 is connected to the inside of the fetal heart stethoscope body 1. The structure and function of the fixing tube 13 and the barrel 3 are consistent with the structure and function of the existing syringe barrel and nipple.

[0026] A sleeve 9 is vertically arranged in the cylinder 3, and a screw 8 threadedly matched with the sleeve 9 is arranged in the sleeve 9. An inner wall of the sleeve 9 is provided with an internal thread threadedly matched with the screw 8. The top of the screw 8 exceeds the top of the cylinder 3, which is convenient for rotating the screw 8. The combined length of the screw 8 and the sleeve 9 can be changed through the threaded matching of the screw 8 and the sleeve 9 to prevent the top of the screw 8 from exceeding the top of the cylinder 3 too much, thereby avoiding inconvenience in carrying and use. A piston sliding up and down in the cylinder 3 is arranged at the bottom of the sleeve 9.

[0027] A fixing plate 11 is horizontally fixed to the bottom end of the sleeve 9. The fixing plate 11 is a circular structure and is convenient to fix. A sealing ring 10 in contact with the inner wall of the cylinder 3 is fixed on the outer wall of the fixing plate 11. The sealing ring 10 is made of rubber. The sealing ring 10 is in close contact with the inner wall of the cylinder 3 to seal the gap between the fixing plate 11 and the inner wall of the cylinder 3. When the fixing plate 11 moves downward, the coupling agent can be squeezed downward. The fixing plate 11 and the sealing ring 11 constitute a piston as a whole.

[0028] Of course, in actual use, the piston can also be the piston in an existing syringe. The bottom end of the sleeve 9 is sealed, and the structure of the bottom end of the sleeve 9 is consistent with the structure of the piston rod on the existing syringe, so that the connection between the sleeve 9 and the piston is consistent with the connection method between the piston and the piston rod in the existing syringe.

[0029] The height of the cylinder 3 is less than the height of the fetal heart stethoscope body 1, and the horizontal height of the bottom surface of the fetal heart stethoscope body 1 is lower than the horizontal height of the bottom end of the fixed tube 13, that is, the bottom end of the fixed tube 13 does not exceed the bottom surface of the fetal heart stethoscope body 1. First, it prevents the bottom end of the fixed tube 13 from exceeding the fetal heart stethoscope body 1 and affecting the placement of the fetal heart stethoscope body 1. Second, it can prevent the bottom end of the fixed tube 13 from contacting with other objects after exceeding the fetal heart stethoscope body 1 and causing contamination to the bottom end of the fixed tube 13. The horizontal height of the top end of the cylinder 3 is lower than the horizontal height of the top surface of the fetal heart stethoscope body 1, so that The distance from the top of the cylinder 3 to the top surface of the fetal heart stethoscope body 1 is the amount of coupling agent used at one time. When in use, make the top of the screw 8 flush with the top surface of the fetal heart stethoscope body 1, and then push the fixing plate 11 downward to make the top of the screw 8 flush with the top of the cylinder 3 and then stop. In this way, the distance that the fixing plate 11 moves downward is the distance from the top surface of the fetal heart stethoscope body 1 to the top of the cylinder 3. At this time, the amount of coupling agent squeezed out of the cylinder 3 is just the amount applied on the stethoscope probe 2. In this way, the amount of coupling agent squeezed out can be controlled by making the top of the screw 8 flush with the top surface of the fetal heart stethoscope body 1.

[0030] When the bottom surface of the fixing plate 11 contacts the inner bottom surface of the barrel 3, the top end of the screw 8 does not exceed the top of the fetal heart stethoscope body 1, so that the maximum length of the combined length of the screw 8 and the sleeve 9 is less than the height from the inner bottom surface of the barrel 3 to the top surface of the fetal heart stethoscope body 1. Of course, there is always a section of overlap between the screw 8 and the sleeve 9 to prevent the screw 8 from escaping from the sleeve 9. The maximum length of the screw 8 and the sleeve 9 is controlled so that the screw 8 and the sleeve 9 can push the fixing plate 11 to the inner bottom of the barrel 3 while avoiding the screw 8 and the sleeve 9 being too long, which affects the use and carrying. Preferably, the length of the sleeve 9 is half of the height of the barrel 3, and the length of the sleeve 9 is less than the length of the screw 8. In this way, the fixing plate 11 can be located in the middle of the barrel 3, and half of the coupling agent can be loaded in the barrel 3.

[0031] A limit block 12 for limiting the upward movement distance of the fixing plate 11 is fixed to the middle and upper part of the inner wall of the cylinder 3. The limit block 12 is horizontally fixed to the inner wall of the cylinder 3. When the fixing plate 11 contacts the limit block 12, the fixing plate 11 is located in the middle of the cylinder 3. The limit block 12 can limit the maximum downward movement distance of the fixing plate 11, thereby preventing the sleeve 9 from exceeding the top end of the cylinder 3 and making the amount of coupling agent loaded into the cylinder 3 consistent each time.

[0032] A fixing block 6 is horizontally fixed to the top of the outer wall of the sleeve 9, and a sliding groove is opened on the inner wall of the cylinder 3 for the fixing block 6 to be inserted and slide up and down. Of course, the horizontal height of the limit block 12 is lower than or equal to the horizontal height of the bottom of the sliding groove to prevent a gap between the sealing ring 10 and the inner wall of the cylinder 3. The fixing block 6 is located in the sliding groove, which can limit the rotation of the sleeve 9. In this way, when the screw 8 rotates in the sleeve 9, the sleeve 9 can be prevented from rotating together, making the rotation of the screw 8 more convenient. Of course, when there is no fixing block 6, the sleeve 9 can be limited by fingers when the screw 8 is rotated.

[0033] The fixing blocks 6 are provided with two pieces, and the two fixing blocks 6 are symmetrically distributed with the sleeve 9 as the center, and the two fixing blocks 6 are symmetrically fixed on the top of the left and right sides of the sleeve 9, and the two fixing blocks 6 have a better limiting effect on the sleeve 9.

[0034] There is a distance between the top of the slide groove and the top surface of the cylinder 3, that is, the slide groove has a top, the length of the fixed block 6 is less than the distance from the outer wall of the sleeve 9 to the inner wall of the cylinder 3, a slider 4 is horizontally arranged between the fixed block 6 and the inner wall of the cylinder 3, and an installation groove for the slider 4 to be inserted and slide horizontally is opened at one end of the fixed block 6 close to the inner wall of the cylinder 3, a mounting groove is opened at the left end of the left fixed block 6, and a mounting groove is opened at the right end of the right fixed block 6, and a spring 14 is horizontally fixed between the slider 4 and the bottom of the mounting groove, the bottom of the left mounting groove is the right side wall, and the bottom of the right mounting groove is the left side wall, and the left end of the left spring 14 is fixed to the right end of the left slider 4 The right end of the left spring 14 is fixed to the right side wall of the left mounting groove, the right end of the right spring 14 is fixed to the left end of the right slider 4, and the left end of the right spring 14 is fixed to the left side wall of the left mounting groove. When the spring 14 is in a natural state, one end of the slider 4 exceeds the mounting groove and is located in the slide groove of the inner wall of the cylinder 3. The rotation of the sleeve 9 is restricted by the slider 4 being located in the mounting groove. When the sleeve 9 is to be taken out of the cylinder 3, the slider 4 is pulled toward the side close to the sleeve 9 to compress the spring 14, so that the slider 4 is disengaged from the slide groove and is located in the cylinder 3, so that the sleeve 9 can be taken out of the cylinder 3 for replacement or cleaning.

[0035] The outer wall of the cylinder 3 is a rectangular structure, so that the contact area between the left wall of the cylinder 3 and the right wall of the fetal heart stethoscope body 1 is larger, so that the fixing effect of the cylinder 3 and the fetal heart stethoscope body 1 is better. Preferably, the width of the outer wall of the cylinder 3 is consistent with the width of the fetal heart stethoscope body 1, which can reduce the abruptness of the cylinder 3 on the fetal heart stethoscope body 1.

[0036] The top of the cylinder 3 is open, and the cylinder 3 as a whole is a groove with an outer wall of a rectangular structure and an inner wall of a circular structure. A cover plate 5 is provided on the top of the cylinder 3 to seal the top thereof. The cover plate 5 is cylindrical, and an internal thread is provided on the top of the inner wall of the cylinder 3, and an external thread is provided on the outer wall of the cover plate 5, so that the cover plate 5 and the cylinder 3 are threadedly matched. A circular plate is fixed on the top of the cover plate 5, and the diameter of the cover plate 5 is smaller than that of the cover plate 5. The position of the cover plate 5 can be limited by the circular plate. The cover plate 5 is provided with a second through hole for the top end of the screw rod 8 to pass through, and the top end of the screw rod 8 passes through the second through hole and is located at the top of the cover plate 5. The cover plate 5 can shield the cylinder body 3 above the fixing plate 11 to prevent some debris from entering the cylinder body 3 above the fixing plate 11. The cover plate 5 can also shield the sleeve 9 to prevent some impurities from entering between the screw rod 8 and the sleeve 9 and affecting the thread fit of the screw rod 8 and the sleeve 9.

[0037] The top of the screw rod 8 is fixed with a handle 7, which is a circular plate. The diameter of the screw rod 8 is smaller than that of the handle 7. The handle 7 is horizontally fixed to the top of the screw rod 8. The handle 7 is used to facilitate the rotation of the screw rod 8. The diameter of the second through hole on the cover plate 5 is smaller than that of the handle 7, so as to prevent the handle 7 from passing through the second through hole. The cover plate 5 can block the downward movement distance of the screw rod 8 and the sleeve 9 at a certain length, thereby controlling the downward movement distance of the fixing plate 11 in a single time. For example, if the screw rod 8 is twisted upward by 2 mm, the screw rod 8 and the sleeve 9 are moved upward by the handle 7. When pushed downward, the handle 7 can only move downward 2mm, and the fixed plate 11 can only move downward 2mm. After the coupling agent is squeezed out, the handle 7 and the cover plate 5 are in a fit, so that when the handle 7 is accidentally touched, the coupling agent in the cylinder 3 can be prevented from flowing out. Each time it is used, the screw 8 needs to be rotated first to create a gap between the handle 7 and the cover plate 5. Preferably, after the top surface of the handle 7 is flush with the top surface of the fetal heart stethoscope body 1, the distance between the handle 7 and the cover plate 5 is the distance that the fixed plate 11 moves downward in a single time, that is, the amount of coupling agent applied on the stethoscope probe 2 in a single time.

[0038] Working principle:

[0039] When in use, the coupling agent is sucked into the barrel 3 below the fixing plate 11 through the fixing tube 13. Of course, the coupling agent in the barrel 3 is only half of the barrel 3. Then the screw 8 is turned downward to make the screw 8 located in the sleeve 9, so that the length of the screw 8 and the sleeve 9 is the shortest, and the screw 8 is prevented from exceeding the top of the barrel 3 too much, which is convenient for carrying. The length of the screw 8 and the sleeve 9 is fixed, and the cover plate 5 can block the downward movement of the handle 7 to prevent the coupling agent from flowing out after the handle 7 is accidentally touched. When the coupling agent is to be used, the screw 8 is twisted upward through the handle 7 to move the handle 7 upward so that the top of the handle 7 is aligned with the cover plate. 5, and then the handle 7 is pressed downward, so that the screw 8 and the sleeve 9 drive the fixing plate 11 to move downward, so that the fixing plate 11 squeezes the coupling agent out of the fixing tube 13, and by rotating the screw 8 upward, the gap between the handle 7 and the cover plate 5 can be controlled, so as to control the amount of coupling agent squeezed out, to prevent excessive squeezing and waste, and through the threaded cooperation of the screw 8 and the sleeve 9, the handle 7 can be made to exceed the top of the cylinder 3 by a short distance, so that the handle 7 is easy to press downward, making the operation more convenient, and the coupling agent can be stored through the cylinder 3, so there is no need to carry the coupling agent separately, which is more convenient.

Claims

1. A fetal heart stethoscope, comprising a fetal heart stethoscope body (1) and a stethoscope probe (2), characterized in that: A cylinder (3) is vertically fixed on one side of the fetal heart stethoscope body (1), the bottom of the cylinder (3) is sealed, a first through hole communicating with each other from top to bottom is opened at the bottom of the cylinder (3), a fixing tube (13) is vertically fixed at the bottom of the cylinder (3) corresponding to the first through hole, a sleeve (9) is vertically arranged in the cylinder (3), a screw (8) threadedly matched therewith is arranged in the sleeve (9), and a piston sliding up and down in the cylinder (3) is arranged at the bottom of the sleeve (9).

2. The fetal heart rate stethoscope according to claim 1, characterized in that: The piston comprises a fixed plate (11) of a circular structure, and the outer wall of the fixed plate (11) is fixedly sleeved with a sealing ring (10) in contact with the inner wall of the cylinder (3).

3. The fetal heart rate stethoscope according to claim 2, characterized in that: The height of the cylinder (3) is smaller than the height of the fetal heart stethoscope body (1), the horizontal height of the bottom surface of the fetal heart stethoscope body (1) is lower than the horizontal height of the bottom end of the fixed tube (13), and the horizontal height of the top end of the cylinder (3) is lower than the horizontal height of the top surface of the fetal heart stethoscope body (1).

4. The fetal heart rate stethoscope according to claim 3, characterized in that: When the bottom surface of the fixing plate (11) contacts the inner bottom surface of the cylinder (3), the top end of the screw rod (8) does not exceed the top of the fetal heart stethoscope body (1).

5. The fetal heart rate stethoscope according to claim 4, characterized in that: A limit block (12) for limiting the upward movement distance of the fixed plate (11) is fixed to the upper middle portion of the inner wall of the cylinder (3).

6. The fetal heart rate stethoscope according to claim 5, characterized in that: A fixing block (6) is horizontally fixed to the top end of the outer wall of the sleeve (9), and a sliding groove for the fixing block (6) to be inserted and slide up and down is provided on the inner wall of the cylinder (3).

7. The fetal heart rate stethoscope according to claim 6, characterized in that: The fixing blocks (6) are provided in two pieces, and the two fixing blocks (6) are symmetrically distributed with the sleeve (9) as the center.

8. The fetal heart rate stethoscope according to claim 7, characterized in that: The outer wall of the cylinder (3) is a rectangular structure.

9. The fetal heart rate stethoscope according to claim 8, characterized in that: The top of the cylinder (3) is open, and a cover plate (5) is provided on the top of the cylinder (3) to seal the top of the cylinder (3). A second through hole is provided on the cover plate (5) for the top end of the screw (8) to pass through.

10. The fetal heart stethoscope according to claim 9, characterized in that: A handle (7) is fixed to the top end of the screw rod (8).

11. The fetal heart stethoscope according to claim 10, characterized in that: The top of the slide groove is spaced apart from the top surface of the cylinder (3); the length of the fixed block (6) is smaller than the distance from the outer wall of the sleeve (9) to the inner wall of the cylinder (3); a slider (4) is horizontally arranged between the fixed block (6) and the inner wall of the cylinder (3); an installation groove for the slider (4) to be inserted and slide horizontally is provided at one end of the fixed block (6) close to the inner wall of the cylinder (3); a spring (14) is horizontally fixed between the slider (4) and the bottom of the installation groove; when the spring (14) is in a natural state, one end of the slider (4) exceeds the installation groove and is located in the slide groove of the inner wall of the cylinder (3).

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