Abdominal Circumference Measuring Device for Critically Ill Patients

Abstract

The present invention provides a abdominal circumference measuring device for critically ill patients, comprising: a base having a strip-shaped groove formed at the top, and a socket formed in the strip-shaped groove; a cover plate with a hinge end and a plug-in end at both ends, the hinge end being hinged to the base, and the plug-in end being provided with a plug, and rotating the cover plate can make the plug inserted into the socket; a stopper block provided in the strip-shaped groove; a tape cassette detachably connected to the plug, a tape being wound in the tape cassette, and the free end of the tape being connected to the stopper block; a pushing mechanism provided in the strip-shaped groove; and a pressing control member installed in the socket, inserting the plug into the socket can press down the pressing control member, the pressing control member can detach the tape cassette from the plug, and release the stop of the pushing mechanism, and the pushing mechanism pushes the tape cassette to the stopper block. Using this device to measure the abdominal circumference of a patient does not require the patient to get up, and the measurement can be carried out in the patient's lying state with more accurate results, which improves the treatment experience and treatment quality for postoperative patients, especially critically ill patients.

Description

Technical Field

[0001] The present invention relates to the field of intra-abdominal pressure measurement devices, and particularly to an abdominal circumference measurement device for critically ill patients. Background Art

[0002] In clinical practice, many diseases can cause an increase in intra-abdominal pressure. Persistent elevation of intra-abdominal pressure can lead to intra-abdominal hypertension, which usually occurs in 5% to 40% of patients with urinary dysfunction, especially high-risk surgical patients with urinary dysfunction. Severe cases can lead to abdominal compartment syndrome. Abdominal compartment syndrome can cause changes in systemic hemodynamics and, at the same time, through the restriction of breathing, cause dysfunction of the circulatory system, respiratory system, urinary system, and digestive system. In severe cases, it will manifest as oliguria, anuria, dyspnea, and even multiple organ failure, endangering life. Therefore, for the postoperative care of some surgical patients, measuring and monitoring the changes in their intra-abdominal pressure is also an important link in preventing postoperative complications and ensuring the smooth recovery of patients.

[0003] When the intra-abdominal pressure of a patient increases, the most intuitive manifestation is usually the outward bulging of the patient's abdomen. Therefore, measuring the change in the patient's abdominal circumference is one of the most direct methods for measuring the change in the patient's intra-abdominal pressure. However, postoperative patients are usually in a lying position. When measuring the patient's abdominal circumference, a measuring tape needs to be wrapped around the patient's back. Therefore, the patient needs to get up and cooperate with the measurement, which will increase the patient's pain. And due to the patient's physical discomfort, it will be difficult to cooperate with the measurement smoothly, resulting in inaccurate measurement results. Especially for critically ill patients, the patient may not even be able to complete the action of getting up smoothly, which will cause difficulties in measuring the patient's abdominal circumference data. Summary of the Invention

[0004] In view of the deficiencies of the prior art, the present invention provides an abdominal circumference measurement device for critically ill patients to solve the problems that it is currently difficult to measure the abdominal circumference of postoperative patients, especially critically ill patients, who have difficulty getting up and cooperating with the measurement, increasing the patient's pain and resulting in inaccurate measurement results.

[0005] The object of the present invention is achieved by the following technical solutions:

[0006] The abdominal circumference measurement device for critically ill patients provided by the present invention includes:

[0007] A base for mounting on a hospital bed and having a strip-shaped groove opened at the top, and a slot is opened in the strip-shaped groove;

[0008] A cover plate, the two ends of which are respectively a hinged end and a plug-in end. The hinged end is hinged to the base, and a plug is provided at the plug-in end. Rotating the cover plate can make the plug insert into the slot;

[0009] A resisting block is arranged in the strip-shaped groove and located between the hinged end and the slot;

[0010] A tape case, detachably connected to the insertion block. A measuring tape is wound inside the tape case, and the free end of the measuring tape passes out of the tape case and is connected to a resisting block.

[0011] A pushing mechanism, disposed in the strip-shaped groove and on the side of the insertion slot away from the resisting block; and

[0012] A pressing control member, installed in the insertion slot. When the insertion block is inserted into the insertion slot, it can press down the pressing control member. The pressing control member can detach the tape case from the insertion block and release the stop on the pushing mechanism, and the pushing mechanism pushes the tape case to the resisting block.

[0013] As can be seen from the above technical solution, the abdominal circumference measuring device for critically ill patients provided by the present invention uses the resisting block to abut under the patient as the starting point of measurement. By rotating the cover plate to wrap the patient's body, the measuring tape is continuously pulled out from the tape case and wound around the patient's abdomen. The pushing mechanism provides a driving force to slide the tape case in the strip-shaped groove under the patient towards the resisting block, so as to achieve the purpose of measuring the abdominal circumference of the patient when the patient is lying flat. The process is simple and fast; the pressing control member serves both as a means for controlling the installation and disassembly of the tape case and the insertion block and as a switch for restricting or allowing the movement of the pushing mechanism. It can be synchronously achieved only by rotating the cover plate to press down or lift the insertion block. The operation is convenient, which improves the measuring efficiency of the patient's abdominal circumference, facilitates multiple measurements to obtain the change amount of the patient's abdominal circumference data within a certain period of time, is conducive to the medical staff's quick grasp of the patient's negative pressure situation, and improves the treatment quality of the patient; using this device to measure the patient's abdominal circumference does not require the patient to get up. The measurement can be carried out when the patient is lying flat and the result is more accurate, which improves the treatment experience and treatment quality for postoperative patients, especially critically ill patients.

[0014] Further, the pressing control member is connected to the bottom of the insertion slot through a first elastic member, and the first elastic member can provide an elastic force to push the pressing control member out of the insertion slot and block it on the traveling path of the pushing mechanism.

[0015] Further, clamping members are respectively arranged on both sides of the insertion block. The tape case is located between the two clamping members and has insertion pin holes on both sides. Each clamping member is provided with an activity cavity and the end away from the cover plate is open. An L-shaped pin is movably arranged in each activity cavity. The L-shaped pin is connected to the inner wall of the activity cavity through a second elastic member. The second elastic member can provide an elastic force to make the L-shaped pin move towards the inner wall of the activity cavity close to the tape case, and one end of the L-shaped pin passes out of the inner wall of this side and into the insertion pin hole. The L-shaped pin can make the tape outlet of the tape case always face the resisting block, and the other end of the L-shaped pin extends towards the open end of the activity cavity.

[0016] Furthermore, a top cone is provided at the top of the push control member corresponding to each locking member. When the insert block is inserted into the slot and approaches the push control member, the top cone will be inserted between the L-shaped pin and the movable cavity and cause the L-shaped pin to disengage from the pin hole.

[0017] Furthermore, pinching plates are respectively provided on both sides of the plug block, each of the pinching plates is connected to the plug block via a third elastic member, and the third elastic member can provide an elastic force to move the two pinching plates away from the plug block, and a buckle is provided on one side of each pinching plate away from the plug block, and slots for locking the buckle are provided on both sides of the inner wall of the slot.

[0018] Furthermore, the pushing mechanism includes a fixed plate, a fourth elastic member and a push plate, the fixed plate is fixedly installed in the strip groove, the push plate is located on the side of the fixed plate close to the stop block and is connected to the fixed plate through the fourth elastic member, and the fourth elastic member can provide an elastic force to move the push plate away from the fixed plate.

[0019] Furthermore, a through hole is opened on the fixed plate, and a pull rope is arranged on one side of the push plate. One end of the pull rope passes through the through hole and extends outward, and the side of the tape box away from the tape outlet can be attracted to the push plate by magnetic force.

[0020] Furthermore, an elastic arc plate is provided in the strip groove between the stop block and the slot, one end of the arc plate is smoothly connected to the bottom of the strip groove, and the other end is curved upward in an arc shape and extends out of the strip groove, the top of the extended end is connected to the stop block and the bottom is connected to the bottom of the strip groove through a fifth elastic member, and the fifth elastic member can provide an elastic force to push the stop block out of the strip groove.

[0021] Furthermore, the outlet end of the ruler tape is connected to the top of the side of the stop block close to the slot, a stop plate is provided at the side of the ruler tape outlet of the ruler tape box close to the insertion block, a window is provided on the arc plate below the connection between the ruler tape and the stop block, and a shooting camera is provided at the bottom of the strip groove directly below the window.

[0022] Furthermore, a squeezing button is provided on one side of the stop block facing the slot, and the squeezing button is electrically connected to the shooting camera via a wire, and a squeezing block is provided on one side of the tape box at the tape outlet corresponding to the squeezing button. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific implementation of the present invention, the following will briefly introduce the drawings required for use in the specific implementation. In all the drawings, each element or part is not necessarily drawn according to the actual scale.

[0024] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of a device for measuring the abdominal circumference of a critically ill patient according to the present invention;

[0025] Figure 2 This is a cross-sectional view of the front view structure diagram of an embodiment of the abdominal circumference measuring device for critically ill patients of the present invention;

[0026] Figure 3 It is Figure 2 The partial enlarged view at A in;

[0027] Figure 4 It is Figure 2 The partial enlarged view at B in;

[0028] Figure 5 This is a cross-sectional view of the structure diagram when the insertion block approaches the insertion slot in an embodiment of the abdominal circumference measuring device for critically ill patients of the present invention;

[0029] Figure 6 It is Figure 5 The partial enlarged view at C in;

[0030] Reference numerals:

[0031] Base 1, strip groove 11, insertion slot 12, clamping groove 121;

[0032] Cover plate 2, insertion block 21, clamping member 22, movable cavity 221, L-shaped pin 222, second elastic member 223, pinch plate 23, third elastic member 231, buckle 232;

[0033] Blocking block 3, arc plate 31, viewing window 311, fifth elastic member 32, shooting camera 33, extrusion button 34, wire 35;

[0034] Tape box 4, tape 41, insertion pin hole 42, abutting plate 43, extrusion block 44;

[0035] Pushing mechanism 5, fixing plate 51, through hole 511, fourth elastic member 52, push plate 53, pull rope 531;

[0036] Pressing control member 6, first elastic member 61, top cone 62. Detailed implementation manners

[0037] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the following will describe the detailed implementation manners of the present invention with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific implementations disclosed below.

[0038] It should be noted that when an element is referred to as "fixed to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which this invention belongs. The terms used in the specification of this invention are only for the purpose of describing specific embodiments and are not intended to limit this invention.

[0040] As Figures 1-6 shown, the abdominal circumference measuring device for critically ill patients provided in this embodiment includes a base 1, a cover plate 2, a resisting block 3, a tape box 4, a pushing mechanism 5 and a pressing control member 6.

[0041] Please refer to Figure 1 and Figure 2 , the base 1 is used to be installed on the hospital bed. Preferably, in order to ensure the comfort of the patient when lying flat, a mattress can be added to the hospital bed to form a space for accommodating the base 1, so that the top surface of the base 1 is flush with the bed surface. A strip-shaped groove 11 extending towards both sides is formed at the top of the base 1, and a slot 12 is formed in the strip-shaped groove 11 to provide an activity space for the resisting block 3, the tape box 4, the pushing mechanism 5 and the pressing control member 6, so as to measure the abdominal circumference of the patient when the patient is lying flat.

[0042] Please refer to Figure 1 , Figure 2 and Figure 5 , both ends of the cover plate 2 are respectively a hinged end and a plug-in end. The hinged end is hinged to the base 1, and the plug-in end is provided with a plug 21. Rotating the cover plate 2 can make the plug 21 inserted into the slot 12 and make the cover plate 2 cover the outside of the patient's waist and abdomen, so as to form a space for accommodating the patient's body between the cover plate 2 and the base 1.

[0043] As Figure 5 and Figure 6As shown, in one embodiment, pinching plates 23 are respectively provided on both sides of the plug block 21, and each pinching plate 23 is connected to the plug block 21 through a third elastic member 231. The third elastic member 231 can provide an elastic force to keep the two pinching plates 23 away from the plug block 21. A buckle 232 is provided on the side of each pinching plate 23 away from the plug block 21, and a clamping groove 121 for clamping the buckle 232 is provided on both sides of the inner wall of the slot 12. When the plug block 21 is inserted into the slot 12, the buckle 232 and the clamping groove 121 can be used to fix the plug block 21 in the slot 12, and the buckle 232 can be withdrawn from the clamping groove 121 by pinching the pinching plates 23 on both sides, so as to facilitate the disconnection between the plug block 21 and the slot 12.

[0044] See also Figure 1 and Figure 2 The abutment block 3 is arranged in the strip groove 11 and is located between the hinge end and the slot 12, and is used to abut against the patient's back.

[0045] In order to make the butt block 3 fully butt against the patient's back, preferably, in one embodiment, an elastic arc plate 31 is provided in the strip groove 11 between the butt block 3 and the slot 12, and one end of the arc plate 31 is smoothly connected to the bottom of the strip groove 11 to provide a channel for the pushing mechanism 5 to reach the butt block 3, and the other end of the arc plate 31 is arc-shaped and tilted upward and extends out of the strip groove 11, and the top of the extended end is connected to the butt block 3 and the bottom is connected to the bottom of the strip groove 11 through the fifth elastic member 32, and the fifth elastic member 32 can provide an elastic force to push the butt block 3 out of the strip groove 11.

[0046] See also Figure 5 and Figure 6 The tape box 4 is detachably connected to the insert block 21. The tape box 4 is provided with a tape 41 rolled up and can provide a contraction force to store the tape 41 inside. Specifically, a coil spring is provided inside the tape box 4, and the coil spring is connected to one end of the tape 41 located inside the tape box 4. The free end of the tape 41 passes through the tape box 4 and is connected to the stop block 3. The connection end is the scale starting end of the tape 41, so that the connection point between the tape 41 and the stop block 3 is used as the starting point of the measurement. During specific use, first open the cover 2 and move the tape 41 against the cover 2. The patient lies flat on the bed and the waist and abdomen position to be measured is located on the path of the strip groove 11, so that the stop block 3 abuts against the patient's back, and the cover 2 is rotated to allow the insertion block 21 to drive the tape box 4 so that the tape 41 wraps around the patient's abdomen from the outside with the stop block 3 as the starting point. When the insertion block 21 is inserted into the slot 12, the tape box 4 is removed from the insertion block 21, and the tape box 4 slides along the path of the strip groove 11 to abut against the stop block 3. At this time, the tape 41 completes one circle around the patient's abdomen. The length of the tape 41 pulled out of the tape box 4 is the patient's abdominal circumference. Under the action of the winding spring, the tape 41 always remains in close contact with the patient's body surface to ensure measurement accuracy.

[0047] In one embodiment, a clamping piece 22 is respectively provided on both sides of the insertion block 21, and the tape box 4 is located between the two clamping pieces 22 and has latch holes 42 on both sides. A movable cavity 221 is provided in each clamping piece 22 and one end away from the cover plate 2 is open, and an L-shaped pin 222 can be movably provided in each movable cavity 221. The L-shaped pin 222 is connected to the inner wall of the movable cavity 221 through a second elastic piece 223. The second elastic piece 223 can provide elastic force to move the L-shaped pin 222 toward the inner wall of the movable cavity 221 close to the tape box 4, and make one end of the L-shaped pin 222 pass through the inner wall of the side to the latch hole 42, and the tape box 4 can be installed or removed by sliding the L-shaped pin 222. The L-shaped pin 222 can make the outlet of the tape 41 of the tape box 4 always face the stop block 3. Specifically, the latch hole 42 is a square hole or other non-circular special-shaped hole, and one end of the L-shaped pin 222 inserted into the latch hole 42 is a column adapted to the latch hole 42 to prevent the outlet position of the tape 41 of the tape box 4 from changing. The other end of the L-shaped pin 222 extends toward the opening of the active cavity 221, and there is a gap between the end of the L-shaped pin 222 and the inner wall of the active cavity 221 to which it is closely attached.

[0048] In order to further improve the accuracy of the patient's waist circumference data measured by the tape 41, Figures 4-6 As shown, in one embodiment, the exit end of the tape 41 is connected to the top of the side of the stopper 3 close to the slot 12, so that the measurement starting point of the tape 41 is located at the position where the stopper 3 and the tape box 4 abut against each other, reducing the measurement error. A stopper 43 is provided on the side of the tape 41 outlet of the tape box 4 close to the plug block 21, and the tape box 4 abuts against the stopper 3 through the stopper 43, so as to leave a space between the tape box 4 and the stopper 3, so as to facilitate the observation of the reading of the tape 41. A window 311 is provided on the arc plate 31 below the connection between the tape 41 and the stopper 3, and a shooting camera 33 is provided at the bottom of the strip groove 11, just below the window 311, for shooting the length reading of the tape 41 when it is pulled out of the tape box 4.

[0049] In one embodiment, a squeeze button 34 is provided on one side of the stopper 3 facing the slot 12, and the squeeze button 34 is electrically connected to the camera 33 via a wire 35, and the camera 33 is activated to take a picture by pressing the squeeze button 34. Since the stopper 43 leaves a space between the tape box 4 and the stopper 3, in order to activate the camera 33 when the tape box 4 abuts against the stopper 3, a squeeze block 44 is provided on one side of the tape box 4 at the exit of the tape 41 corresponding to the squeeze button 34.

[0050] See also Figure 3The pushing mechanism 5 is arranged in the strip groove 11 and is located on the side of the slot 12 away from the stop block 3, and has a driving force that can slide along the strip groove 11 to the stop block 3, and is used to push the tape box 4 to the stop block 3 to abut after the tape box 4 is removed from the insert block 21. In one embodiment, the pushing mechanism 5 includes a fixed plate 51, a fourth elastic member 52 and a push plate 53, the fixed plate 51 is fixedly installed in the strip groove 11, the push plate 53 is located on the side of the fixed plate 51 close to the stop block 3 and is connected to the fixed plate 51 through the fourth elastic member 52, and the fourth elastic member 52 can provide an elastic force to keep the push plate 53 away from the fixed plate 51. After the pushing mechanism 5 pushes the tape box 4 to the abutment block 3 and measures the patient's abdominal circumference data, it is necessary to retract the pushing mechanism 5 and retract the tape box 4 and install it on the insertion block 21. In order to facilitate the recovery of the tape box 4 after measurement, preferably, a through hole 511 is provided on the fixing plate 51, and a pull rope 531 is provided on one side of the pushing plate 53. One end of the pull rope 531 passes through the through hole 511 and extends outward. The side of the tape box 4 away from the outlet of the tape 41 can be attracted to the pushing plate through magnetic force. The tape box 4 and the pushing plate 53 are attracted to each other under the action of magnetism, and the pushing plate 53 and the tape box 4 can be pulled back to their original positions at the same time by pulling the pull rope 531.

[0051] See also Figure 3 and Figure 5 , the pressing control member 6 is installed in the slot 12 and is blocked on the travel path of the pushing mechanism 5. The insert block 21 is inserted into the slot 12 to press down the pressing control member 6, so that the pressing control member 6 can remove the tape box 4 from the insert block 21 and release the stopper of the pushing mechanism 5, and the pushing mechanism 5 will push the tape box 4 to the stop block 3. In one embodiment, specifically, the pressing control member 6 is connected to the bottom of the slot 12 through the first elastic member 61, and the first elastic member 61 can provide an elastic force to push the pressing control member 6 out of the slot 12 and block the pushing mechanism 5 on the travel path. In specific use, it is necessary to insert the insert block 21 into the slot 12 and press down the pressing control member 6 and maintain this state to allow the pushing mechanism 5 to move. In one embodiment, a top cone 62 is provided at the top of the pressing control member 6 corresponding to each locking member 22. When the insert block 21 is inserted into the slot 12 and approaches the pressing control member 6, the top cone 62 will be inserted between the L-shaped pin 222 and the movable cavity 221 and disengage the L-shaped pin 222 from the pin hole 42, so that the tape box 4 can be removed from the insert block 21.

[0052] During specific use, by rotating the cover plate 2, the measuring tape 41 is driven by the insertion block 21 to wind around the patient's abdomen starting from the abutting block 3. When the cover plate 2 rotates until the insertion block 21 is inserted into the slot 12, the ends of the clamping members 22 on both sides of the insertion block 21 will contact the pressing control member 6. Continuing to rotate the cover plate 2 to press down the insertion block 21 causes the apex cone 62 at the top of the pressing control member 6 to be pushed into the space between the L-shaped pin 222 and the inner wall of the movable cavity 221 close to the measuring tape case 4. As the insertion block 21 is pressed down, the L-shaped pin 222 will slide out of the insertion pin hole 42, so that the measuring tape case 4 is removed from the insertion block 21. At the same time, the insertion block 21 will also press down the pressing control member 6, causing the pressing control member 6 to be pressed into the slot 12 to release the movement restriction on the pushing mechanism 5. At this time, the push plate 53 will, under the action of the fourth elastic member 52, push the measuring tape case 4 along the path of the strip-shaped groove 11 to abut against the abutting block 3. Thus, the measuring tape 41 is completed to wind around the patient's abdomen for one week, and the final reading can be obtained. After the measurement, the push plate 53 and the measuring tape case 4 are retracted to their original positions, and the insertion block 21 is pulled out. The pressing control member 6 is ejected out of the slot 12 under the action of the first elastic member 61 and restricts the movement of the pushing mechanism 5 again. As the insertion block 21 is continuously pulled out, the apex cone 62 will move out of the movable cavity 221, and the L-shaped pin 222 will be inserted into the insertion pin hole 42 again under the action of the second elastic member 223, and the measuring tape case 4 is reinstalled on the insertion block 21.

[0053] It should be noted that the first elastic member 61, the second elastic member 223, the third elastic member 231, the fourth elastic member 52, and the fifth elastic member 32 described above can all be springs or elastic rubbers.

[0054] The abdominal circumference measuring device for critically ill patients provided by the present invention uses the abutting block 3 to abut under the patient as the starting point of measurement. By rotating the cover plate 2 to wrap the patient's body, the measuring tape 41 is driven to continuously draw out from the measuring tape case 4 and wind around the patient's abdomen. The pushing mechanism 5 provides the driving force to slide the measuring tape case 4 in the strip-shaped groove 11 under the patient towards the abutting block 3, so as to achieve the purpose of measuring the abdominal circumference of the patient when the patient is lying flat. The process is simple and fast. The pressing control member 6 serves both as a means to control the installation and disassembly of the measuring tape case 4 and the insertion block 21 and as a switch to restrict or allow the movement of the pushing mechanism 5. It can be synchronously realized only by rotating the cover plate 2 to control the pressing down or lifting of the insertion block 21. The operation is convenient, the measuring efficiency of the patient's abdominal circumference is improved, it is convenient to perform multiple measurements to obtain the change amount of the patient's abdominal circumference data within a certain period of time, which is beneficial for medical staff to quickly master the negative pressure situation of the patient and improve the treatment quality of the patient. Using this device to measure the patient's abdominal circumference does not require the patient to get up. The measurement can be carried out when the patient is lying flat and the result is more accurate. For postoperative patients, especially critically ill patients, it improves the treatment experience and the treatment quality.

[0055] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the various embodiments of the present invention, and they should all be covered by the scope of the claims and the specification of the present invention.

Claims

1. Abdominal circumference measuring device for critically ill patients, characterized in that, include: A base, which is used to be installed on a hospital bed and has a strip groove on the top, and a slot is provided in the strip groove; The cover plate has two ends, respectively a hinged end and a plug-in end, wherein the hinged end is hinged to the base, and the plug-in end is provided with an insert block, and the insert block can be inserted into the slot by rotating the cover plate; A stop block is disposed in the strip groove and between the hinge end and the slot; A tape box is detachably connected to the insert block, a tape is rolled up in the tape box, and a free end of the tape passes through the tape box and is connected to the stop block; A pushing mechanism is disposed in the strip groove and is located on a side of the slot away from the stop block; and A pressing control member is installed in the slot. The insert block is inserted into the slot to press down the pressing control member. The pressing control member can remove the tape box from the insert block and release the stopper of the pushing mechanism. The pushing mechanism pushes the tape box to the stopper. The insert block is provided with clamping parts on both sides respectively, the tape box is located between the two clamping parts and has latch holes on both sides, each of the clamping parts is provided with a movable cavity and is open at one end away from the cover plate, and each of the movable cavity can be movably provided with an L-shaped pin, the L-shaped pin is connected to the inner wall of the movable cavity by a second elastic part, the second elastic part can provide elastic force to move the L-shaped pin toward the inner wall of the movable cavity close to the tape box, and make one end of the L-shaped pin pass through the inner wall on this side into the latch hole, the L-shaped pin can make the tape outlet of the tape box always face the stop block, and the other end of the L-shaped pin extends toward the opening of the movable cavity.

2. The abdominal circumference measuring device for critically ill patients according to claim 1, wherein The pressing control member is connected to the bottom of the slot via a first elastic member, and the first elastic member can provide an elastic force to push the pressing control member out of the slot and block it on the travel path of the pushing mechanism.

3. The abdominal girth measuring device for critically ill patients according to claim 1, wherein A top cone is provided at the top of the push control member corresponding to each clamping member. When the insert block is inserted into the slot and approaches the push control member, the top cone will be inserted between the L-shaped pin and the movable cavity to disengage the L-shaped pin from the pin hole.

4. The abdominal girth measuring device for critically ill patients according to claim 2, wherein, Pinch plates are respectively arranged on both sides of the insertion block, each of the pinch plates is connected to the insertion block through a third elastic member, and the third elastic member can provide an elastic force to move the two pinch plates away from the insertion block. A buckle is arranged on one side of each pinch plate away from the insertion block, and slots for locking the buckle are arranged on both sides of the inner wall of the slot.

5. The abdominal circumference measuring device for critically ill patients according to claim 1, characterized in that, The pushing mechanism includes a fixed plate, a fourth elastic member and a push plate. The fixed plate is fixedly installed in the strip groove. The push plate is located on a side of the fixed plate close to the stop block and is connected to the fixed plate through the fourth elastic member. The fourth elastic member can provide an elastic force to move the push plate away from the fixed plate.

6. The abdominal girth measuring device for critically ill patients according to claim 5, wherein, A through hole is provided on the fixing plate, a pull rope is provided on one side of the push plate, one end of the pull rope passes through the through hole and extends outward, and the side of the tape box away from the tape outlet can be attracted to the push plate by magnetic force.

7. The abdominal girth measuring device for critically ill patients according to claim 1, characterized in that, An elastic arc plate is provided in the strip groove between the stop block and the slot, one end of the arc plate is smoothly connected to the bottom of the strip groove, and the other end is curved upward in an arc shape and extends out of the strip groove, the top of the extended end is connected to the stop block and the bottom is connected to the bottom of the strip groove through a fifth elastic member, and the fifth elastic member can provide an elastic force to push the stop block out of the strip groove.

8. The abdominal girth measuring device for critically ill patients according to claim 7, characterized in that, The outgoing end of the tape is connected to the top of one side of the abutting block close to the slot. A retaining plate is arranged on one side of the tape outlet of the tape cassette close to the insertion block. A viewing window is formed on the arc plate below the connection of the tape and the abutting block. A camera is arranged at the bottom of the strip-shaped groove directly below the viewing window.

9. The abdominal circumference measuring device for critically ill patients according to claim 8, characterized in that, An extrusion button is arranged on the side of the abutting block facing the slot. The extrusion button is electrically connected to the camera through a wire. An extrusion block is arranged on one side of the tape cassette at the tape outlet corresponding to the extrusion button.

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