Stethoscope

Abstract

The utility model discloses a stethoscope, which belongs to the technical field of medical instruments and comprises a stethoscope head with a pickup end face and a sleeve, one end of the sleeve is provided with a working port, the stethoscope head can enter a hollow channel of the sleeve through the working port along the axial direction of the sleeve, and a first thread is arranged in the hollow channel. The thread axis direction of the first thread is the same as the axial direction of the sleeve; the rotating disc is arranged in the hollow channel and can move between a first position and a second position in the hollow channel in the axial direction of the sleeve, a disinfection layer is arranged on the disinfection end face of the rotating disc, the rotating disc is provided with a second thread connected with the first thread, and the thread axis direction of the second thread and the rotating disc are coaxially arranged; the pickup end face of the stethoscope head can extrude the disinfection end face of the rotary disc, the rotary disc moves from the first position to the second position, and the disinfection end face rotates around the axis of the rotary disc under the action of the first thread and the second thread so that the disinfection layer can wipe the pickup end face and disinfect the pickup end face.

Description

Technical Field

[0001] The present application belongs to the technical field of medical devices, and specifically relates to a stethoscope. Background Art

[0002] The stethoscope is a medical device. Since it was first used in clinical practice on March 8, 1817, it has greatly improved the development of medicine. The stethoscope is mostly used in the diagnosis of diseases occurring in the heart, lungs and other parts of the body, greatly improving the accuracy of disease diagnosis. Doctors can use the heartbeat, breathing and gastrointestinal sounds fed back by the stethoscope to judge the conditions of the patient's heart, trachea, lungs, gastrointestinal tract and other parts of the body to conduct initial screening of the disease, which greatly facilitates doctors' diagnosis of patients' diseases, saves time for doctors and patients, thereby improving doctors' work efficiency and exempting patients from unnecessary examinations.

[0003] A stethoscope usually consists of three parts, namely the sound pickup part, the sound conduction part and the sound listening part. It is usually composed of a stethoscope head, a sound guide tube and an ear hook. The stethoscope head is placed against the patient's body surface to collect the sounds inside the patient's body. The sound guide tube transmits the sounds collected by the stethoscope head to the ear hook, so that the doctor can use the ear hook to listen to the sounds inside the patient's body.

[0004] In daily use, doctors need to diagnose different people, and the stethoscope head needs to be reused, and the stethoscope head needs to be close to the skin surface. In this process, pathogens such as bacteria and viruses on the skin are easily contaminated on the stethoscope head, and contaminated on the skin surface of other people through the stethoscope head. In particular, newborn infants have relatively weak immunity and are easily invaded by pathogens. Therefore, it is extremely important to fully disinfect the stethoscope head. According to the structure, the stethoscope can be divided into a single-head stethoscope and a double-head stethoscope. The shape of the stethoscope head of the double-head stethoscope is more complex, so it is more difficult to clean. When wiping the stethoscope head, the doctor's fingers are easy to touch the surface of the stethoscope head, which is not conducive to maintaining the hygiene of the stethoscope head surface. Due to the high turnover of hospital personnel, doctors need to contact more patients every day, and the stethoscope head is easy to be contaminated with pathogens even if it is not used. Utility Model Content

[0005] In order to improve the cleanliness of the stethoscope head, block the transmission path of diseases through the stethoscope head, and ensure the health of doctors and patients, the present application provides a stethoscope.

[0006] A stethoscope comprises a stethoscope head provided with a sound pickup end surface, comprising: a sleeve, a working port is provided at one end of the sleeve, the stethoscope head can enter a hollow channel of the sleeve through the working port along the axial direction of the sleeve, a first thread is provided in the hollow channel, and the thread axis direction of the first thread is the same as the axial direction of the sleeve; a turntable, the turntable is arranged in the hollow channel and can move between a first position and a second position along the axial direction of the sleeve in the hollow channel, a disinfection layer is provided on the disinfection end surface of the turntable, the turntable is provided with a second thread connected to the first thread, and the thread axis direction of the second thread is coaxially arranged with the turntable; the sound pickup end surface of the stethoscope head can squeeze the disinfection end surface of the turntable and move the turntable from the first position to the second position, and the disinfection end surface rotates around the axis of the turntable under the action of the first thread and the second thread, so that the disinfection layer wipes the sound pickup end surface.

[0007] In one embodiment of the present application, the stethoscope further includes an elastic member, the turntable is connected to the sleeve via the elastic member, and the turntable can move from the second position to the first position along the axial direction of the sleeve under the elastic force of the elastic member.

[0008] In one embodiment of the present application, the elastic member is a compression spring, one end of the compression spring is connected to the turntable, and the other end is connected to the sleeve. When the turntable moves from the first position to the second position, the compression spring can be compressed.

[0009] In one embodiment of the present application, a through groove is provided on the side wall of the sleeve, the extension direction of the through groove is arranged along the axial direction of the sleeve, and the through groove is connected to the end face of the sleeve provided with a working port; the stethoscope also includes a sound guide tube connected to the stethoscope head, the sound pickup end face squeezes the disinfection end face, and when moving between a first position and a second position, the sound guide tube can pass through the through groove and move with the stethoscope head between the first position and the second position.

[0010] In one embodiment of the present application, the sleeve is connected to a limit plate that can rotate around an axis in the sleeve cross section, and the limit plate can enter the movement path of the stethoscope head between the first position and the second position to limit the stethoscope head from leaving the hollow channel.

[0011] In one embodiment of the present application, a first threaded hole is provided in the hollow channel, and a first thread is provided on the inner wall of the first threaded hole; the turntable includes a rotating column, and a second thread is provided on the side wall of the rotating column; the first threaded hole is threadedly connected to the rotating column, and when the rotating column moves axially along the sleeve, it can rotate around the axis of the turntable.

[0012] In one embodiment of the present application, the turntable is coaxially arranged with the hollow channel.

[0013] In one embodiment of the present application, the sterilization layer is detachably connected to the sterilization end face.

[0014] In one embodiment of the present application, the disinfection layer is in the shape of a disc, and a strip is provided on the connecting end face of the disinfection layer around the axis of the disinfection layer; a slot is provided on the disinfection end face to cooperate with the strip, and when the pickup end face squeezes the disinfection layer, the strip can be inserted into the slot.

[0015] In one embodiment of the present application, the stethoscope also includes a storage tube, which is coaxially arranged with the sleeve, one end of the sleeve is provided with a working port, and the other end is detachably connected to the inlet of the storage tube, the inner wall of the storage tube and the outer wall of the sleeve form a storage cavity, the storage cavity is not connected to the hollow channel, and multiple disinfection layers can be placed in the storage cavity.

[0016] The technical solution recorded in this application has at least the following beneficial effects:

[0017] 1. When the present application is used, the stethoscope head is held in the hand, the sound pickup end face of the stethoscope head is brought into contact with the disinfection layer on the disinfection end face of the turntable, the stethoscope head is pressed, and the turntable is driven to move from the first position to the second position along the axial direction of the sleeve. Since the turntable is threadably connected to the sleeve through the first thread and the second thread, when the turntable moves along the axial direction of the sleeve, the turntable will rotate around its own axial direction. During this process, the disinfection layer is always in contact with the sound pickup end face, so that the disinfection layer rotates to wipe the sound pickup end face. The disinfection layer can be a cotton sheet soaked in disinfectant, so that the disinfection layer can clean and disinfect the sound pickup end face of the stethoscope head.

[0018] 2. When the stethoscope head squeezes the turntable at the first position to move to the second position, the elastic deformation of the elastic member is caused. When the pressure of the stethoscope head on the disinfection end face is reduced, the elastic force of the elastic member causes the stethoscope head to move from the second position to the first position. During this process, the turntable will rotate again due to the action of the first thread and the second thread, so that the disinfection layer can wipe the sound pickup end face of the stethoscope head.

[0019] 3. The combined effect of the limit plate, the sleeve and the turntable can fix the stethoscope head in the sleeve, and the stethoscope head is detachably connected to the stethoscope head. When the stethoscope head is not in use, the sleeve can be mounted on the stethoscope head, thereby isolating the sound pickup end face of the stethoscope head from the outside world and preventing pathogens from being contaminated on the sound pickup end face of the stethoscope head. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of an exemplary implementation of the present application;

[0021] Figure 2 is a schematic structural diagram of an exemplary embodiment of the sleeve in the present application;

[0022] Figure 3 It is a structural schematic diagram of an exemplary implementation of the disinfection end face in the present application;

[0023] Figure 4It is a schematic structural diagram of an exemplary embodiment of the disinfection layer in the present application;

[0024] Figure 5 It is a structural schematic diagram of an exemplary implementation of the storage cylinder in the present application;

[0025] Figure 6 It is a structural schematic diagram of an exemplary implementation method when the limiting piece in the present application is rotated into the hollow channel of the sleeve;

[0026] Figure 7 It is a schematic diagram of an exemplary implementation of the first thread and the second thread in the present application being threadedly connected and matched;

[0027] Figure 8 It is a schematic diagram of another exemplary implementation of the first thread and the second thread in the present application.

[0028] In the figure:

[0029] 101, sleeve; 102, working port; 103, hollow channel; 104, first thread; 105, through groove;

[0030] 201, turntable; 202, disinfection end surface; 203, slot; 204, rotating column; 205, second thread;

[0031] 301, disinfection layer; 302, cuttings;

[0032] 401, compression spring; 402, limiting piece;

[0033] 501, storage tube;

[0034] 601. Stethoscope head; 602. Sound guide tube. DETAILED DESCRIPTION

[0035] In order to have a clearer understanding of the technical features, purposes and effects of the present application, the specific implementation methods of the present application are now described with reference to the accompanying drawings. The same reference numerals in the drawings represent components with the same structure or similar structures but the same functions.

[0036] In this document, “exemplary” means “serving as an example, instance or illustration”, and any diagram or implementation described in this document as “exemplary” should not be interpreted as a more preferred or more advantageous technical solution.

[0037] In order to simplify the drawings, only the parts related to the present application are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically drawn or marked.

[0038] See also Figures 1 to 8 Understand this application.

[0039] See also Figure 1 A stethoscope, comprising a stethoscope head 601 provided with a sound pickup end surface, the sound pickup end surface of the stethoscope head 601 can be close to the patient's skin to collect the sound in the patient's body, the stethoscope also comprises: a sleeve 101, one end of the sleeve 101 is provided with a working port 102, the stethoscope head 601 can enter the hollow channel 103 of the sleeve 101 through the working port 102 along the axial direction of the sleeve 101, the hollow channel 103 is provided with a first thread 104, the thread axis direction of the first thread 104 is the same as the axial direction of the sleeve 101; a turntable 201, the turntable 201 is provided in the hollow channel 103, and can be in the hollow channel 103 along the sleeve The cylinder 101 moves axially between a first position and a second position, a disinfection end face 202 of the turntable 201 is provided with a disinfection layer 301, and the turntable 201 is provided with a second thread 205 connected to the first thread 104, and the thread axis direction of the second thread 205 is coaxially arranged with the turntable 201; the sound pickup end face of the stethoscope head 601 can squeeze the disinfection end face 202 of the turntable 201 and make the turntable 201 move from the first position to the second position, and the disinfection end face 202 rotates around the axis of the turntable 201 under the action of the first thread 104 and the second thread 205, so that the disinfection layer 301 rotates and the sound pickup end face is wiped. Technicians in the technical field to which the present application belongs can understand that the first position and the second position in the present application do not have specific positions, and the turntable can move between the first position and the second position along the axial direction of the sleeve, and in this process, a rotational motion is generated under the action of the first thread and the second thread, thereby driving the disinfection layer 301 to rotate; and the disinfection layer 301 that matches the shape of the pickup end face of the stethoscope can be used to disinfect the pickup end faces of stethoscopes with different shapes.

[0040] In one embodiment of the present application, the turntable 201 is coaxially arranged with the hollow channel 103 .

[0041] In one embodiment of the present application, a first threaded hole is provided in the hollow channel 103, and a first thread 104 is provided on the inner wall of the first threaded hole; the turntable 201 includes a rotating column 204, and a second thread 205 is provided on the side wall of the rotating column 204; the first threaded hole is threadedly connected to the rotating column 204, and the rotating column 204 can rotate around the axis of the turntable 201 when the rotating column 204 moves axially along the sleeve 101, see Figure 7 See also Figure 1 , Figure 2When the sound pickup end surface of the stethoscope head 601 contacts the disinfection layer 301 of the turntable 201 and presses the turntable 201 along the axial direction of the sleeve 101, the turntable 201 moves from the first position to the second position. Since the outer wall of the rotating column 204 is provided with a second thread 205, the sleeve 101 is provided with a first thread 104 threadedly connected with the second thread 205, see Figure 7 , the outer wall of the rotating column 204 is provided with a second thread 205, and the second thread 205 forms a bulge on the outer wall of the rotating column 204. The thread lead angle of the second thread 205 is large, and the pitch is large. A first thread 104 is formed in the sleeve 101, and the first thread 104 is a groove opened in the sleeve 101. The length of the first thread 104 is short, so the friction between the first thread and the second thread is small. Therefore, when the rotating column 204 moves from the first position to the second position, under the action of the first thread 104 and the second thread 205, the rotating column 204 makes a linear motion along its own axis, and the rotating column 204 has a tendency to rotate around the thread axis of the second thread 205. Since the surface of the pickup end face is smooth, the pickup end face and the disinfection layer 30 1 is small, the rotating column 204 can rotate around its own axis, so that the rotating column 204 drives the disinfection layer 301 to rotate around the thread axis of the second thread 205. During this process, the disinfection layer 301 is always in contact with the sound pickup end face of the stethoscope head 601, so that the disinfection layer 301 wipes the sound pickup end face, the surface of the sound pickup end face is smooth, and the friction between the sound pickup end face and the disinfection layer 301 is small. The disinfection layer 301 can be a cotton sheet soaked with disinfectant such as medical alcohol, so that in the process of cleaning and disinfecting the sound pickup end face, the solution on the cotton sheet can reduce the friction between the disinfection layer 301 and the sound pickup end face, so that the relative rotation between the disinfection layer 301 and the sound pickup end face is smoother, and the sound pickup end face can have a better cleaning effect.

[0042] Those skilled in the art to which this application belongs can understand that Figure 2The description is based on the direction in the figure, and a force is provided to act on the rotating column 204 from top to bottom along the axial direction of the rotating column 204. When the force is constant, the larger the thread lead angle between the first thread 104 and the second thread 205, the larger the component of the force in the direction inclined downward along the thread surface, and the smaller the component of the force in the direction perpendicular to the thread surface, so that the extrusion force between the first thread and the second thread is small, and the friction coefficient between the first thread and the second thread is constant, so that the larger the thread lead angle between the first thread 104 and the second thread 205, the smaller the friction between the first thread and the second thread, and the component of the force in the direction inclined downward along the thread surface is greater than the friction force inclined upward along the thread surface, so that the two threads produce relative motion, and the rotating column 204 moves downward under the action of the force, and rotates around its own axis under the guidance of the first thread and the second thread, so that the rotating column 204 drives the disinfection layer 301 to rotate. That is, the friction between the first thread and the second thread is small enough, and the force acts on the rotating column, so that the rotating column moves linearly along the axial direction, and under the action of the first thread and the second thread, the rotating column can rotate around its own axis.

[0043] Those skilled in the art of the present application can understand that the arrangement of the first thread and the second thread in the present application is not limited to the above-mentioned arrangement of the first thread 104 as a groove arranged in the sleeve 101 and the second thread 205 as a protrusion arranged on the rotating column 204. It can also be that the rotating column 204 is provided with a groove, see Figure 8 , the groove extends along a spiral line to form a second thread 205, and the protrusion arranged in the sleeve 101 extends along a thread line to form a first thread 104, so that when the rotating column 204 makes a linear motion along its own axial direction, under the action of the first thread and the second thread, the rotating column 204 rotates around its own axis. Of course, there are other ways to set the first thread and the second thread, such as by a ball screw pair, the ball screw nut is coaxially arranged with the sleeve and connected to the sleeve 101, the balls arranged along a spiral line in the ball screw nut form a first thread, the screw is connected to the turntable, and the screw is formed with a second thread, so that when the turntable moves along the axial direction of the sleeve, the turntable can rotate under the action of the ball screw pair.

[0044] Of course, technicians in the technical field to which the present application belongs can understand that the first thread 104 and the second thread 205 in the present application can also be set in other ways. For example, a working column is provided in the hollow channel 103, the working column is connected to the sleeve 101, the working column and the sleeve 101 are coaxially arranged, the outer wall of the working column is provided with a first thread 104, the turntable 201 is provided with a threaded hole of sufficient depth along the axial direction of the sleeve 101, and the second thread 205 is provided in the threaded hole, so that the working column can be inserted into the threaded hole and threadedly connected to the threaded hole.

[0045] See also Figures 1 to 3 In one embodiment of the present application, the stethoscope further includes an elastic member, and the turntable 201 is connected to the sleeve 101 through the elastic member. The turntable 201 can move from the second position to the first position along the axial direction of the sleeve 101 under the elastic force of the elastic member. In one embodiment of the present application, the elastic member is a compression spring 401, one end of the compression spring 401 is connected to the turntable 201, and the other end is connected to the sleeve 101. When the turntable 201 moves from the first position to the second position, the compression spring 401 can be compressed.

[0046] See also Figure 1 When the turntable 201 is squeezed by the stethoscope head 601 and moves from the first position to the second position, the turntable 201 squeezes the compression spring 401, causing the compression spring 401 to deform elastically. When the pressure applied by the stethoscope head 601 to the turntable 201 decreases, the compression spring 401 pushes the turntable 201 to move from the second position to the first position along the axial direction of the sleeve 101. Under the joint action of the first thread 104 and the second thread 205, the turntable 201 rotates, thereby rotating the disinfection layer 301 to clean the pickup end surface again. The doctor can obtain two rotations of the turntable 201 by pressing the stethoscope head 601 once, thereby ensuring the disinfection and cleaning effect of the disinfection layer 301 on the pickup end surface. Figure 2 ,by Figure 2 In the direction shown, a baffle is provided at the bottom of the rotating column 204, and a compression spring 401 is provided between the baffle and the bottom of the sleeve 101, so that when the rotating column 204 moves downward, the force of the compression spring 401 preventing the baffle from following the rotation of the rotating column 204 is small, and the rotating column can rotate smoothly; of course, the baffle can also be arranged so that the baffle and the rotating column are connected by a bearing, so that the baffle and the rotating column can smoothly rotate relative to each other, reducing the resistance encountered by the rotating column when rotating.

[0047] Of course, technicians in the technical field to which the present application belongs can understand that the elastic member can also be a tension spring, elastic rubber or other components, which can enable the elastic member to undergo elastic deformation and generate elastic force when the turntable 201 moves from the first position to the second position. Under the action of the elastic force of the elastic member, the turntable 201 can move from the second position to the first position.

[0048] See also Figures 1 to 6In one embodiment of the present application, a through groove 105 is provided on the side wall of the sleeve 101, and an extension direction of the through groove 105 is arranged along the axial direction of the sleeve 101, and the through groove 105 is connected to the end face of the sleeve 101 provided with a working port 102; when the sound pickup end face squeezes the disinfection end face 202 and moves between the first position and the second position, the stethoscope also includes a sound guide tube 602 connected to the stethoscope head 601, and the sound guide tube 602 can pass through the through groove 105 and move with the stethoscope head 601 between the first position and the second position.

[0049] See also Figure 5 Since the stethoscope head 601 is connected to the sound guide tube 602, the stethoscope head 601 enters the hollow channel 103 of the sleeve 101 through the working port 102. Due to the presence of the through groove 105, when the stethoscope head 601 moves between the first position and the second position, the sound guide tube 602 will not interfere with the movement of the stethoscope head 601, and the stethoscope head 601 can still be connected to the ear hook through the sound guide tube 602.

[0050] See also Figure 5 , Figure 6 Furthermore, the sleeve 101 is connected to a limit plate 402 that can rotate around an axis in the cross section of the sleeve 101. The limit plate 402 is pivotally connected to the sleeve 101 through a pivot shaft. The limit plate 402 can enter the movement path of the stethoscope head 601 between the first position and the second position, thereby limiting the stethoscope head 601 from leaving the hollow channel 103. When the doctor does not need to use the stethoscope, the stethoscope head 601 can be placed in the hollow channel 103 of the sleeve 101, and then the limiting plate 402 can be rotated to the movement path of the stethoscope head 601 in the hollow channel 103, thereby limiting the stethoscope head 601 from leaving the hollow channel 103 through the working port 102. The length of the compression spring 401 can be set so that when the stethoscope head 601 enters the hollow channel 103 of the sleeve 101, it starts to squeeze the turntable 201, so that the compression spring 401 is compressed, so that the compression spring 401 gives the stethoscope head 601 a force to leave the hollow channel 103 through the turntable 201, and the limiting plate 402 can prevent the stethoscope head 601 from leaving the hollow channel 103 of the sleeve 101 through the working port 102. 03, so that under the joint action of the compression spring 401, the turntable 201, the limiting plate 402 and the sleeve 101, the stethoscope head 601 can be fixed in the hollow channel 103 of the sleeve 101, and because the disinfection layer 301 and the disinfection end face 202 are tightly fitted together, the disinfection layer 301 is soaked with disinfectant, and the disinfection layer 301 can continuously disinfect the sound pickup end face on the one hand, and prevent external pollutants from being contaminated on the sound pickup end face on the other hand. When the stethoscope head 601 needs to be used, the limiting plate 402 is rotated to make the limiting plate 402 leave the movement path of the stethoscope head 601, so that the stethoscope head 601 in the hollow channel 103 can leave the hollow channel 103 through the working port 102.

[0051] The present application can have two usage states, one is that the stethoscope head 601 is fixed in the hollow channel 103 of the sleeve 101; the other is that the stethoscope head 601 reciprocates between the first position and the second position, and the rotating turntable 201 wipes and disinfects the pickup end surface.

[0052] See also Figure 3 , Figure 4 In one embodiment of the present application, the disinfection layer 301 is detachably connected to the disinfection end face 202. Furthermore, the disinfection layer 301 is in the shape of a disc, and the connecting end face of the disinfection layer 301 is provided with an insertion strip 302 around the axis of the disinfection layer 301; the disinfection end face 202 is provided with a slot 203 that cooperates with the insertion strip 302, and when the pickup end face squeezes the disinfection layer 301, the insertion strip 302 can be inserted into the slot 203.

[0053] In order to meet the disinfection requirements, the stethoscope head 601 needs to be disinfected after each use. Before the next disinfection of the stethoscope head 601, the disinfection layer 301 can be removed and replaced with a new disinfection layer 301. The doctor can directly cover the disinfection end face 202 of the turntable 201 with the insertion strip 302 and the slot 203, and then use the sound pickup end face of the stethoscope head 601 to insert the insertion strip 302 into the slot 203, so that the disinfection layer 301 and the disinfection end face 202 are tightly combined together, and the disinfection layer 301 can rotate with the disinfection end face 202, so that the disinfection layer 301 wipes the sound pickup end face in a rotating manner. In this process, the doctor's hands are prevented from touching the sound pickup end face, and pathogens contaminated on the doctor's hands are prevented from adhering to the sound pickup end face, and pathogens contaminated on the sound pickup end face are also prevented from adhering to the doctor's hands.

[0054] See also Figure 5 , Figure 6 Furthermore, the sleeve 101 also includes a storage cylinder 501, which is coaxially arranged with the sleeve 101, one end of the sleeve 101 is provided with a working port 102, and the other end is detachably connected to the inlet of the storage cylinder 501, such as the sleeve 101 is threadedly connected with the storage cylinder 501, the inner wall of the storage cylinder 501 and the outer wall of the sleeve 101 form a storage cavity, and multiple disinfection layers 301 can be placed in the storage cavity, and the storage cavity is not connected to the hollow channel 103.

[0055] When the disinfection layer 301 needs to be replaced, the doctor can conveniently take out the unused disinfection layer 301 directly from the storage cavity, and then place the disinfection layer 301 on the disinfection end surface 202 .

[0056] It should be understood that although this specification is described according to various implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0057] The series of detailed descriptions listed above are merely specific descriptions of feasible embodiments of the present application. They are not intended to limit the scope of protection of the present application. Any equivalent implementation scheme or changes that do not deviate from the technical spirit of the present application, such as combination, division or repetition of features, should be included in the scope of protection of the present application.

Claims

1. A stethoscope comprising a stethoscope head provided with a sound pickup end surface, characterized in that: include: A sleeve, wherein a working port is provided at one end of the sleeve, and the stethoscope head can enter the hollow channel of the sleeve through the working port along the axial direction of the sleeve, and a first thread is provided in the hollow channel, and the thread axis direction of the first thread is the same as the axial direction of the sleeve; A turntable, the turntable is arranged in the hollow channel and can move between a first position and a second position in the hollow channel along the axial direction of the sleeve, a disinfection layer is arranged on the disinfection end surface of the turntable, the turntable is provided with a second thread connected to the first thread, and the thread axis direction of the second thread is coaxially arranged with the turntable; The sound pickup end surface of the stethoscope head can squeeze the disinfection end surface of the turntable and move the turntable from a first position to a second position. The disinfection end surface rotates around the axis of the turntable under the action of the first thread and the second thread, so that the disinfection layer wipes the sound pickup end surface.

2. A stethoscope according to claim 1, characterized in that: The stethoscope further comprises an elastic member, through which the turntable is connected to the sleeve, and under the elastic force of the elastic member, the turntable can move from the second position to the first position along the axial direction of the sleeve.

3. A stethoscope according to claim 2, characterized in that: The elastic member is a compression spring, one end of the compression spring is connected to the rotating disk, and the other end is connected to the sleeve. When the rotating disk moves from the first position to the second position, the compression spring can be compressed.

4. A stethoscope according to claim 2, characterized in that: A through groove is provided on the side wall of the sleeve, the extension direction of the through groove is arranged along the axial direction of the sleeve, and the through groove is communicated with the end surface of the sleeve provided with the working port; The stethoscope also includes a sound guide tube connected to the stethoscope head. When the sound pickup end face presses the disinfection end face and moves between the first position and the second position, the sound guide tube can pass through the through slot and move with the stethoscope head between the first position and the second position.

5. A stethoscope according to claim 4, characterized in that: The sleeve is connected to a limit plate that can rotate around an axis in the cross section of the sleeve. The limit plate can enter the movement path of the stethoscope head between the first position and the second position to restrict the stethoscope head from leaving the hollow channel.

6. A stethoscope according to claim 1, characterized in that: A first threaded hole is provided in the hollow channel, and the first thread is provided on the inner wall of the first threaded hole; The turntable comprises a rotating column, and the side wall of the rotating column is provided with the second thread; The first threaded hole is threadedly connected to the rotating column, and when the rotating column moves axially along the sleeve, it can rotate around the axis of the rotating disk.

7. A stethoscope according to claim 1, characterized in that: The rotating disk is coaxially arranged with the hollow channel.

8. A stethoscope according to claim 1, characterized in that: The disinfection layer is detachably connected to the disinfection end surface.

9. A stethoscope according to claim 8, characterized in that: The disinfection layer is in the shape of a disc, and the connection end surface of the disinfection layer is provided with an insertion strip around the axis of the disinfection layer; The disinfection end surface is provided with a slot that matches the insertion strip, and when the sound pickup end surface squeezes the disinfection layer, the insertion strip can be inserted into the slot.

10. A stethoscope according to claim 8, characterized in that: The stethoscope also includes a storage tube, which is coaxially arranged with the sleeve, one end of the sleeve is provided with the working port, and the other end is detachably connected to the inlet of the storage tube, the inner wall of the storage tube and the outer wall of the sleeve form a storage cavity, the storage cavity is not connected to the hollow channel, and a plurality of the disinfection layers can be placed in the storage cavity.

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