An external chest compression measurement device

Abstract

The application discloses a chest compression measuring device, which comprises a measuring mechanism, the measuring mechanism is slidably connected to a support plate, one end of the support plate is fixedly connected with a lifting mechanism, the lifting mechanism is rotationally connected to the top end of a longitudinal moving mechanism, the moving track of the measuring mechanism is perpendicular to the moving track of the longitudinal moving mechanism, and the longitudinal moving mechanism is arranged at the top end of a fixing mechanism; the device can prompt medical staff to adjust the force when performing chest compression, facilitate the staff to adjust the force, guide the medical staff to perform chest compression according to the set frequency, accurately and effectively compress, and judge the depth of chest recoil according to the light emitted by the light assembly.

Description

TECHNICAL FIELD

[0001] The present application relates to the medical technical field, in particular to a chest compression measuring device. BACKGROUND

[0002] Automatic external defibrillator, also known as automatic external defibrillator, is a portable medical device that can diagnose specific arrhythmias and give electric shock defibrillation. It is a medical device that can be used by non-professionals to rescue patients with cardiac arrest. When the heart stops beating, only within the "golden 4 minutes" of the best rescue time, using an automatic external defibrillator (AED) to defibrillate and cardiopulmonary resuscitation on the patient is the most effective way to stop sudden death. Chest compression is the most important part of current manual cardiopulmonary resuscitation technology, and its role is not only artificial circulation support, but also can produce a certain amount of ventilation when the rescuer does not want to perform artificial respiration. Therefore, it is particularly important to learn how to correctly implement chest compression.

[0003] At present, the chest compression parameter measurement on the market is: a shape sensor is attached to the thorax of the patient being pressed (the shape sensor changes shape corresponding to the change of the thoracic shape), and the shape data of the shape sensor is used to calculate the chest compression parameter; the shape data of the shape sensor establishes a function image corresponding to the shape of the shape sensor in a plane rectangular coordinate system, and the initial shape of the shape sensor before pressing is an initial function image corresponding thereto; and a real-time function image corresponding to the shape of the shape sensor during pressing.

[0004] Although this scheme can accurately obtain parameters such as compression depth and compression frequency, it takes a lot of time to obtain data through calculation in actual emergency processes, and cannot be understood at a glance. Moreover, the compression frequency often depends on the personal operation ability of medical personnel, and is then fed back to the rectangular coordinate system for calculation by using a function image. Medical personnel can only adjust the compression frequency according to the calculated result, which is very inconvenient. SUMMARY

[0005] The purpose of the present application is to provide a chest compression measuring device to solve the problems existing in the prior art.

[0006] To achieve the above purpose, the present application provides the following scheme:

[0007] A chest compression measuring device, comprising a measuring mechanism, the measuring mechanism is slidingly connected to a support plate, one end of the support plate is fixedly connected with a lifting mechanism, the lifting mechanism is rotationally connected to the top end of a longitudinal movement mechanism, the movement track of the measuring mechanism is perpendicular to the movement track of the longitudinal movement mechanism, and the longitudinal movement mechanism is arranged at the top end of a fixing mechanism.

[0008] The measuring mechanism comprises a sliding sheet slidably connected in the support plate, a square hole is formed in the sliding sheet, a plurality of measuring assemblies are rotatably connected to the inner side wall of the square hole, a pressing rod is rotatably connected to one end of the measuring assembly away from the inner side wall of the square hole, and the bottom end of the pressing rod penetrates through the sliding sheet and is fixedly connected with a pressing block.

[0009] A flashing light is fixedly installed on the top surface of the support plate.

[0010] Preferably, the measuring assembly comprises a first hinged seat fixedly connected to the inner side wall of the square hole, a measuring rod is hinged to the first hinged seat, a scale is formed on the outer side wall of the measuring rod, a fourth sleeve is sleeved on the outer side wall of the measuring rod, the fourth sleeve is slidably connected with the measuring rod, a second hinged seat is hinged to one end of the fourth sleeve away from the measuring rod, the second hinged seat is fixedly connected to the outer side wall of the pressing rod, and a plurality of second hinged seats are circumferentially and equidistantly arranged.

[0011] Preferably, the fixing mechanism comprises two symmetrically and oppositely arranged adaptive clamping assemblies, and an extension assembly is arranged between the top ends of the two adaptive clamping assemblies.

[0012] Preferably, the adaptive clamping assembly comprises two clamping pieces arranged on the same side, the two clamping pieces are respectively fixedly connected to the two ends of a first slide rod, the two first slide rods are arranged in parallel, the clamping piece comprises a first connecting plate fixedly connected to the bottom end of the first slide rod, the end of the first connecting plate away from the first slide rod is arranged downwardly inclined, a second connecting plate is fixedly connected to the end of the first connecting plate away from the first slide rod, a first sliding groove vertically formed in the inner side wall of the second connecting plate, a third connecting plate slidably connected in the first sliding groove, a first spring fixedly connected to the top end of the third connecting plate, the first spring is fixedly connected to the inner side top wall of the first sliding groove, the third connecting plate does not come out of the first sliding groove, and a fourth connecting plate is fixedly connected to the end of the third connecting plate extending out of the first sliding groove.

[0013] Preferably, the extension assembly comprises a first sleeve fixedly connected to the two ends of any first slide rod, the two first sleeves are respectively located at the two ends of the first slide rod, the two first sleeves are arranged in parallel, a second slide rod is slidably connected in the first sleeve, the end of the second slide rod extending out of the first sleeve is fixedly connected to the first slide rod, the two second slide rods are respectively located at the two ends of the first slide rod, and a locking mechanism is arranged between the first sleeve and the second slide rod.

[0014] Preferably, the locking mechanism comprises a threaded through hole formed in the second slide rod, a screw is threadedly connected in the threaded through hole, the bottom end of the screw abuts against the inner side wall of the first sleeve, the top end of the first sleeve is formed with a second sliding groove, the second sliding groove is communicated with the inner cavity of the first sleeve, the top end of the screw penetrates out of the second sliding groove, and the screw is in sliding connection with the second sliding groove.

[0015] Preferably, the longitudinal movement mechanism comprises a sliding ring slidably connected to the first slide rod, and the lifting mechanism is rotatably connected to the top end of the sliding ring.

[0016] Preferably, the lifting mechanism comprises a second sleeve rotatably connected to the top end of the sliding ring, a third sleeve slidably connected in the second sleeve, an inner thread vertically formed in the third sleeve, a lead screw threadedly connected with the inner thread of the third sleeve, the lead screw being rotatably connected in the second sleeve, the top end of the lead screw extending out of the third sleeve and being fixedly connected with a knob, and the support plate being fixedly connected to the outer side wall of the third sleeve.

[0017] Preferably, the top surface of the sliding ring is provided with a limiting assembly, the limiting assembly comprises a first baffle fixedly connected to the top surface of the sliding ring, the first baffle intersects with the movement track of the second sleeve, one side wall of the first baffle abuts against the outer side wall of the second sleeve, two side plates are also fixedly connected to the top surface of the sliding ring, the two side plates are located on the side of the second sleeve away from the first baffle, the two side plates are parallel and symmetrically arranged, the two side plates are respectively located on the two sides of the second sleeve, a sliding hole horizontally formed in any one of the side plates, a stop rod slidably connected in the sliding hole, one end of the stop rod extending into the space between the two side plates and abutting against the other side plate, the other end of the stop rod extending out of the side plate and being fixedly connected with a handle, a second spring sleeved on the outer side wall of the stop rod, and the second spring being located between the handle and the side plate.

[0018] Preferably, the top end of the pressing rod extends out of the square hole, and a pressing head is fixedly connected to the top end of the pressing rod.

[0019] The application discloses the following technical effects:

[0020] In the application, first, the device is fixed on the human body through the fixing part, the longitudinal movement mechanism and the measuring mechanism are adjusted, the pressing block is located directly above the chest cavity of the human body, then the height of the support plate is adjusted through the lifting mechanism, the bottom surface of the pressing block abuts against the human body, at this time, the flashing light flashes at a frequency of 100-120 times per minute, which is consistent with the frequency of chest compression, guiding medical staff to perform compression according to the frequency; the pressing force of the medical staff can be measured through the measuring assembly.

[0021] The device can prompt medical staff in real time when the strength of external chest compression, facilitate staff to adjust the strength, and also guide medical staff to perform external chest compression according to the set frequency, so that accurate and effective compression can be performed, and the depth of thoracic recoil can also be judged according to the measuring assembly. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0023] Figure 1 is a front view of the present application;

[0024] Figure 2 is a right view of the present application;

[0025] Figure 3 is a top view of the present application;

[0026] Figure 4 is Figure 1 is a partial enlarged view of A in the figure;

[0027] Figure 5 is Figure 1 is a partial enlarged view of B in the figure;

[0028] Figure 6 is a structural schematic view of embodiment 2;

[0029] Wherein, 1, support plate; 4, pressing rod; 5, pressing block; 7, flashing light; 8, measuring rod; 9, fourth sleeve; 10, second hinge seat; 11, pressing head; 12, first hinge seat; 15, first sliding rod; 16, first connecting plate; 17, second connecting plate; 18, third connecting plate; 19, first spring; 20, fourth connecting plate; 21, first sleeve; 22, second sliding rod; 23, screw; 24, sliding ring; 25, second sleeve; 26, third sleeve; 27, lead screw; 28, knob; 29, first baffle; 30, side plate; 31, baffle rod; 32, handle; 33, second spring; 34, sliding sheet; 35, electrode patch; 36, wire; 37, transmission interface. DETAILED DESCRIPTION

[0030] Clearly, the described embodiments are merely a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative effort shall fall within the protection scope of the present application.

[0031] In order to make the above objectives, characteristics and advantages of the present application more apparent, clear and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0032] Embodiment 1

[0033] With reference to Figures 1-5 The present embodiment provides a chest compression measuring device, which comprises a measuring mechanism, the measuring mechanism is slidingly connected to a support plate 1, one end of the support plate 1 is fixedly connected with a lifting mechanism, the lifting mechanism is rotationally connected to the top end of a longitudinal movement mechanism, the movement track of the measuring mechanism is perpendicular to the movement track of the longitudinal movement mechanism, and the longitudinal movement mechanism is arranged at the top end of a fixing mechanism;

[0034] The measuring mechanism comprises a sliding sheet 34 slidingly connected in the support plate 1, a square hole is formed in the sliding sheet 34, a plurality of measuring assemblies are rotationally connected to the inner side wall of the square hole, a pressing rod 4 is rotationally connected to the end of the measuring assembly away from the inner side wall of the square hole, and the bottom end of the pressing rod 4 penetrates through the sliding sheet 34 and is fixedly connected with a pressing block 5.

[0035] A flashing light 7 is fixedly installed on the top surface of the support plate 1.

[0036] In the present application, first, the device is fixed on the human body through the fixing part, the longitudinal movement mechanism and the measuring mechanism are adjusted, so that the pressing block 5 is located directly above the chest cavity of the human body, then the height of the support plate 1 is adjusted through the lifting mechanism, so that the bottom surface of the pressing block 5 is in close contact with the human body, at this time, the flashing light 7 flashes at a frequency of 100-120 times per minute, which is consistent with the frequency of the chest compression, guiding the medical staff to press according to this frequency; the pressing force of the medical staff can be measured through the measuring assembly.

[0037] Further optimization scheme, the measuring assembly comprises a first hinge seat 12 fixedly connected to the inner side wall of the square hole, the first hinge seat 12 is hingedly connected with a measuring rod 8, a scale is formed on the outer side wall of the measuring rod 8, a fourth sleeve 9 is sleeved on the outer side wall of the measuring rod 8, the fourth sleeve 9 is slidingly connected with the measuring rod 8, a second hinge seat 10 is hingedly connected to the end of the fourth sleeve 9 away from the measuring rod 8, the second hinge seat 10 is fixedly connected to the outer side wall of the pressing rod 4, and a plurality of second hinge seats 10 are circumferentially and equally spaced. The measuring rod 8 does not completely come out of the fourth sleeve 9.

[0038] In the device, the number of measurement components is preferably four, and the four measurement components are arranged at equal intervals in the circumferential direction, so that the pressing rod 4 can only move in the vertical direction. When the pressing rod 4 moves downward, the fourth sleeve 9 moves relative to the measuring rod 8, thereby exposing the scale on the measuring rod 8, so that the rescuer can know his pressing force in real time, and then adjust his force; the scale line is divided into three sections, and is coated with yellow, green and red pigments in turn in the direction away from the first hinge seat 12. When the pressing force is insufficient, the yellow section is exposed. When the pressing force is appropriate, the green section is exposed. When the pressing force is too large, the red section is exposed.

[0039] Further optimization scheme, the measurement component is electrically connected with a light component, the light component is fixedly installed on the support plate 1, the light component includes a yellow lamp, a green lamp and a red lamp, one electrode of the yellow lamp, the green lamp and the red lamp is electrically connected with the electrode sheet in the fourth sleeve 9, the other electrode of the yellow lamp is electrically connected with the yellow section, the other electrode of the red lamp is electrically connected with the red section, the other electrode of the green lamp is electrically connected with the green section, the yellow section, the red section and the green section are insulated, and the electrode sheet is electrically connected with the yellow section, the red section and the green section. By setting up in this way, when the rescuer performs chest compression, the pressing force of the rescuer can be prompted in real time through the light, which is more eye-catching.

[0040] Further optimization scheme, the fixing mechanism includes two symmetrical and oppositely arranged self-adapting clamping components, and the top ends of the two self-adapting clamping components are provided with a telescopic component.

[0041] Further optimization scheme, the self-adapting clamping component includes two clamping pieces, which are arranged on the same side and are respectively fixedly connected to the two ends of the first slide rod 15. The two first slide rods 15 are arranged in parallel. The clamping piece includes a first connecting plate 16 fixedly connected to the bottom end of the first slide rod 15. The end of the first connecting plate 16 away from the first slide rod 15 is inclined downward. The end of the first connecting plate 16 away from the first slide rod 15 is fixedly connected with a second connecting plate 17. A vertical first sliding groove is formed in the inner side wall of the second connecting plate 17. A third connecting plate 18 is slidably connected in the first sliding groove. The top end of the third connecting plate 18 is fixedly connected with a first spring 19, which is fixedly connected to the inner side top wall of the first sliding groove. The third connecting plate 18 does not come out of the first sliding groove. The end of the third connecting plate 18 extending out of the first sliding groove is fixedly connected with a fourth connecting plate 20.

[0042] The clamping cavity is formed between the two adaptive clamping assemblies, and the human body is located in the clamping cavity. In use, the two clamping members are placed on both sides of the human body, the third connecting plate 18 is slid in the first sliding groove in the second connecting plate 17, so that the first connecting plate 16 and the fourth connecting plate 20 arranged obliquely can adapt to people of different body types. Among them, a sliding groove is opened on the side wall of the second connecting plate 17, a limiting rod is slidably connected in the sliding groove, one end of the limiting rod is fixedly connected with the third connecting plate 18, and the third connecting plate 18 is prevented from being pulled out of the second connecting plate 17.

[0043] Further optimization scheme, telescopic assembly includes first sleeve 21 fixedly connected at both ends of any first slide rod 15, two first sleeves 21 are located at both ends of the first slide rod 15 respectively, two first sleeves 21 are arranged in parallel, a second slide rod 22 is slidably connected in the first sleeve 21, one end of the second slide rod 22 extending out of the first sleeve 21 is fixedly connected on the first slide rod 15, two second slide rods 22 are located at both ends of the first slide rod 15 respectively, and a locking mechanism is arranged between the first sleeve 21 and the second slide rod 22. The second slide rod 22 is slidably connected in the first sleeve 21, so that the distance between the two adaptive clamping assemblies can be adjusted to adapt to different people. The first sleeve 21 and the second slide rod 22 can be locked after the distance between the two adaptive clamping assemblies is determined through the locking mechanism, so as to avoid relative movement between the first sleeve 21 and the second slide rod 22, resulting in insecure fixation and affecting the effect of chest compression.

[0044] Further optimization scheme, the locking mechanism includes a threaded hole opened on the second slide rod 22, a screw 23 is threadedly connected in the threaded hole, the bottom end of the screw 23 abuts against the inner side wall of the first sleeve 21, a second sliding groove is opened at the top end of the first sleeve 21, the second sliding groove communicates with the inner cavity of the first sleeve 21, the top end of the screw 23 penetrates out of the second sliding groove, and the screw 23 is slidably connected with the second sliding groove. The second slide rod 22 is fixed in the first sleeve 21 by rotating the screw 23.

[0045] Further optimization scheme, the longitudinal movement mechanism includes a sliding ring 24 slidably connected on the first slide rod 15, and a lifting mechanism rotatably connected at the top end of the sliding ring 24. There is friction between the first slide rod 15 and the sliding ring 24, so as to avoid free movement of the sliding ring 24 on the first slide rod 15.

[0046] Further optimization scheme, the lifting mechanism comprises a second sleeve 25 rotatably connected to the top end of the sliding ring 24, a third sleeve 26 slidably connected in the second sleeve 25, an inner thread vertically arranged in the third sleeve 26, a lead screw 27 threadedly connected with the inner thread of the third sleeve 26, the lead screw 27 rotatably connected in the second sleeve 25, the top end of the lead screw 27 extending out of the third sleeve 26 and fixedly connected with a knob 28, and the support plate 1 fixedly connected to the outer side wall of the third sleeve 26. Rotating the knob 28 drives the lead screw 27 to rotate, and in turn drives the third sleeve 26 to slide in the second sleeve 25, so as to adjust the height of the support plate 1.

[0047] Further optimization scheme, the top surface of the sliding ring 24 is provided with a limiting assembly, the limiting assembly comprises a first baffle 29 fixedly connected to the top surface of the sliding ring 24, the first baffle 29 intersects with the movement track of the second sleeve 25, one side wall of the first baffle 29 abuts with the outer side wall of the second sleeve 25, two side plates 30 are also fixedly connected to the top surface of the sliding ring 24, the two side plates 30 are located on the side of the second sleeve 25 away from the first baffle 29, the two side plates 30 are parallel and symmetrically arranged, and the two side plates 30 are respectively located on the two sides of the second sleeve 25, a sliding hole horizontally arranged is formed in any one of the side plates 30, a stop rod 31 is slidably connected in the sliding hole, one end of the stop rod 31 extends into the space between the two side plates 30 and abuts with the other side plate 30, the other end of the stop rod 31 extends out of the side plate 30 and is fixedly connected with a handle 32, a second spring 33 is sleeved on the outer side wall of the stop rod 31, and the second spring 33 is located between the handle 32 and the side plate 30.

[0048] When the second sleeve 25 is rotated, first, the handle 32 is pulled to make the stop rod 31 out of the space between the two side plates 30, at this time, the second sleeve 25 is rotated, and when the outer side wall of the second sleeve 25 abuts with one side wall of the first baffle 29, the handle 32 is released, at this time, the stop rod 31 and the first baffle 29 jointly limit the movement of the second sleeve 25.

[0049] Further optimization scheme, the top end of the pressing rod 4 extends out of the square hole, and the top end of the pressing rod 4 is fixedly connected with a pressing head 11. The arrangement of the pressing head 11 is more suitable for the staff to use the device.

[0050] Embodiment 2

[0051] Reference Figure 6Different from the embodiment 1, the bottom end of the pressing block 5 is provided with a mounting groove in the embodiment, an electrode patch 35 is bonded in the mounting groove, the electrode patch 35 is electrically connected with a transmission interface 37 through a wire 36, the wire 36 is arranged in the pressing rod 4, one end of the wire 36 away from the electrode patch 35 is arranged out of the pressing rod 4, the electrode patch 35 is preferably two, and the two wires are electrically connected with the positive and negative poles of the transmission interface 37 respectively, and the transmission interface 37 is fixedly connected to the bottom surface of the supporting plate 1. In this way, the device is electrically connected with an AED (automated external defibrillator), and defibrillation and cardiopulmonary resuscitation are performed on the patient.

[0052] In the description of the present application, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0053] The above-described embodiments are only preferred modes of the present application, and do not limit the scope of the present application. Without departing from the design spirit of the present application, various modifications and improvements to the technical solutions of the present application made by those skilled in the art shall fall within the protection scope of the present application.

Claims

1. A chest compression measurement device, characterized by: Including measuring mechanism, measuring mechanism slidingly connected on support plate (1), one end of support plate (1) is fixedly connected with lifting mechanism, lifting mechanism is rotatably connected on the top of longitudinal movement mechanism, the movement track of measuring mechanism is perpendicular to the movement track of longitudinal movement mechanism, longitudinal movement mechanism is arranged on the top of fixed mechanism; The measuring mechanism includes a slide (34) slidingly connected in the support plate (1), a square hole is formed in the slide (34), a plurality of measuring assemblies are rotatably connected on the inner side wall of the square hole, a pressing rod (4) is rotatably connected on the end of the measuring assembly away from the inner side wall of the square hole, the bottom end of the pressing rod (4) penetrates through the slide (34) and is fixedly connected with a pressing block (5); The top surface of the support plate (1) is fixedly connected with a flashing light (7); The measuring assembly includes a first hinged seat (12) fixedly connected on the inner side wall of the square hole, a measuring rod (8) is hinged on the first hinged seat (12), a scale is formed on the outer side wall of the measuring rod (8), a fourth sleeve (9) is sleeved on the outer side wall of the measuring rod (8), the fourth sleeve (9) is slidingly connected with the measuring rod (8), a second hinged seat (10) is hinged on the end of the fourth sleeve (9) away from the measuring rod (8), the second hinged seat (10) is fixedly connected on the outer side wall of the pressing rod (4), a plurality of second hinged seats (10) are circumferentially and equally spaced; The fixed mechanism includes two symmetrical and oppositely arranged self-adapting clamping assemblies, a telescopic assembly is arranged between the top ends of the two self-adapting clamping assemblies; The self-adapting clamping assembly includes two clamping pieces, the two clamping pieces are arranged on the same side, the two clamping pieces are respectively fixedly connected on the two ends of a first slide rod (15), the two first slide rods (15) are arranged in parallel, the clamping piece includes a first connecting plate (16) fixedly connected on the bottom end of the first slide rod (15), the end of the first connecting plate (16) away from the first slide rod (15) is arranged downwardly inclined, a second connecting plate (17) is fixedly connected on the end of the first connecting plate (16) away from the first slide rod (15), a first sliding groove vertically arranged is formed on the inner side wall of the second connecting plate (17), a third connecting plate (18) is slidingly connected in the first sliding groove, a first spring (19) is fixedly connected on the top end of the third connecting plate (18), the first spring (19) is fixedly connected on the inner side top wall of the first sliding groove, the third connecting plate (18) does not come out of the first sliding groove, the end of the third connecting plate (18) extending out of the first sliding groove is fixedly connected with a fourth connecting plate (20).

2. A chest compression measurement device according to claim 1, characterized in that: The telescopic assembly comprises first sleeves (21) fixed at the two ends of any first slide rod (15), the two first sleeves (21) are located at the two ends of the first slide rod (15) respectively, the two first sleeves (21) are arranged in parallel, a second slide rod (22) is slidably connected in the first sleeve (21), one end of the second slide rod (22) protruding from the first sleeve (21) is fixed on the first slide rod (15), the two second slide rods (22) are located at the two ends of the first slide rod (15) respectively, and a locking mechanism is arranged between the first sleeve (21) and the second slide rod (22).

3. A chest compression measurement device according to claim 2, characterised in that: The locking mechanism comprises a threaded hole formed in the second slide rod (22), a screw (23) is threadedly connected in the threaded hole, the bottom end of the screw (23) abuts against the inner side wall of the first sleeve (21), a second sliding groove is formed in the top end of the first sleeve (21), the second sliding groove is communicated with the inner cavity of the first sleeve (21), the top end of the screw (23) protrudes out of the second sliding groove, and the screw (23) is slidably connected with the second sliding groove.

4. A chest compression measurement device according to claim 3, characterised in that: The longitudinal movement mechanism comprises a sliding ring (24) slidably connected on the first slide rod (15), and the lifting mechanism is rotatably connected to the top end of the sliding ring (24).

5. A chest compression measurement device according to claim 4, characterised in that: The lifting mechanism comprises a second sleeve (25) rotatably connected to the top end of the sliding ring (24), a third sleeve (26) is slidably connected in the second sleeve (25), an inner thread vertically formed in the third sleeve (26), a lead screw (27) is threadedly connected in the third sleeve (26), the lead screw (27) is rotatably connected in the second sleeve (25), the top end of the lead screw (27) protrudes out of the third sleeve (26) and is fixed with a knob (28), and the supporting plate (1) is fixed on the outer side wall of the third sleeve (26).

6. A chest compression measurement device according to claim 5, wherein: A limiting assembly is arranged on the top surface of the sliding ring (24), the limiting assembly comprises a first baffle (29) fixed on the top surface of the sliding ring (24), the first baffle (29) intersects with the movement track of the second sleeve (25), one side wall of the first baffle (29) is attached to the outer side wall of the second sleeve (25), two side plates (30) are further fixed on the top surface of the sliding ring (24), the two side plates (30) are located on the side of the second sleeve (25) away from the first baffle (29), the two side plates (30) are arranged in parallel and symmetrically, the two side plates (30) are located on the two sides of the second sleeve (25) respectively, a sliding hole horizontally formed in any side plate (30), a stop rod (31) slidably connected in the sliding hole, one end of the stop rod (31) protrudes into the space between the two side plates (30) and is attached to the other side plate (30), the other end of the stop rod (31) protrudes out of the side plate (30) and is fixed with a handle (32), a second spring (33) is sleeved on the outer side wall of the stop rod (31), and the second spring (33) is located between the handle (32) and the side plate (30).

7. The chest compression measurement device of claim 1, wherein: The top end of the pressing rod (4) extends out of the square hole, and a pressing head (11) is fixed to the top end of the pressing rod (4).

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