Rapid infusion device for field operations

Abstract

The invention discloses a rapid infusion device for field operations. A rapid infusion device for field operations comprises a bottom plate, a pressing plate, a connecting plate, an adjusting rod and a rotating shaft, wherein the bottom plate and the pressing plate are used for clamping an infusion bag; the connecting plate is used for mounting the pressing plate; the adjusting rod is used for adjusting the position of the pressing plate on the connecting plate; the pressing plate is connected with the adjusting rod, the adjusting rod is arranged on the connecting plate in a screwed mode, the connecting plate is fixed to the rotating shaft, one end of the torsion spring is fixed to the rotating shaft, and the other end of the torsion spring is fixed to the rotating shaft. The other end of the torsional spring is fixed to the bottom plate, the rotating shaft rotates to drive the torsional spring to store force, and the rotating shaft rotates to trigger the first linked switch or the second linked switch to act. The rapid infusion device for field operations reminds medical staff to adjust the pressure when the pressure is too large or too small.

Description

Technical Field

[0001] The present invention relates to the technical field of rapid infusion, in particular to a rapid infusion device for field operations. Background Art

[0002] In the emergency situation of war wound rescue, when the patient needs to be replenished with fluids quickly due to massive blood loss or severe dehydration, the current conventional practice is for medical staff to squeeze the infusion bag with both hands to speed up the flow of the liquid in the bag into the patient's body, thereby achieving rapid emergency fluid replenishment. Although this method can quickly replenish fluids, medical staff are prone to fatigue from squeezing the infusion bag for a long time, and the inability to withdraw makes it difficult for medical staff to respond quickly to other emergency conditions that may occur in the patient in the first place, which is greatly not conducive to the efficient and rapid advancement of the entire rescue process. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a field rapid infusion device which can replace the mechanical squeezing of infusion bags by medical staff.

[0004] To solve the above problems, the present invention provides a rapid infusion device for field use, the rapid infusion device for field use comprising a pressurizing device for pressurizing an infusion bag, the pressurizing device comprising a base plate and a pressure plate for clamping the infusion bag, a connecting plate for installing the pressure plate, an adjusting rod for adjusting the position of the pressure plate on the connecting plate, a rotating shaft for pivotally connecting the base plate and the connecting plate, a torsion spring for storing force under external force drive, an alarm for alarm, a first linkage switch and a second linkage switch for controlling the power on and off of the alarm, and a power supply for powering the alarm, the pressure plate is connected to the adjusting rod, the adjusting rod is screwed on the connecting plate, the connecting plate is fixed to the rotating shaft, one end of the torsion spring is fixed on the rotating shaft, and the other end of the torsion spring is fixed on the base plate, the rotation of the rotating shaft drives the torsion spring to store force, the rotation of the rotating shaft triggers the action of the first linkage switch or the second linkage switch, and the alarm, power supply, first linkage switch and second linkage switch are all mounted on the base plate.

[0005] Furthermore, the pressurizing device also includes a main switch for controlling the on and off of the power supply and the first linkage switch and the second linkage switch.

[0006] Furthermore, the base plate includes a plate body for installing a power supply and an alarm and a fixing part for installing a torsion spring, the fixing part is detachably installed on the plate body, the first linkage switch and the second linkage switch are installed on the fixing part, the heating wire is arranged on the plate body, a first mounting groove is arranged on the plate body, the alarm and the power supply are installed in the first mounting groove, and a cover plate for sealing the first mounting groove is installed on the first mounting groove.

[0007] Furthermore, the fixing member includes a tube body for installing a torsion spring and a connector for connecting to a base plate, the tube body having a mounting portion, the mounting portion being provided with two second mounting grooves for installing a first linkage switch and a second linkage switch respectively, and the tube body and the mounting portion forming an avoidance opening.

[0008] Furthermore, one end of the tube body is closed, a connecting hole is provided at the closed end of the tube body, one end of the torsion spring is inserted into the connecting hole, and the connecting hole passes through the closed end.

[0009] Furthermore, the bottom plate is provided with a groove for placing the infusion bag, the bottom of the pressing plate is provided with a protrusion adapted to the groove, and the bottom plate is also provided with an infusion tube hole connected to the groove.

[0010] Furthermore, the base plate is provided with a first pivot portion, and the connecting plate is provided with two second pivot portions, the first pivot portion is located between the two second pivot portions, the first pivot portion is provided with a first pivot hole, the second pivot portion is provided with a second pivot hole, and the first pivot hole and the second pivot hole are coaxially arranged.

[0011] Furthermore, the rotating shaft includes a shaft rod for pivotally connecting the base plate and the connecting plate and a locking sleeve for fixing the shaft rod on the connecting plate, one end of the shaft rod has an anti-drop cap, the locking sleeve is detachably mounted on the other end of the shaft rod, one end of the torsion spring is mounted on the locking sleeve, the locking sleeve has a trigger part, the trigger part is formed by protruding outward from the outer wall of the locking sleeve, and the trigger part is used to touch the first linkage switch and the second linkage switch.

[0012] Furthermore, the locking sleeve is provided with two marks for indicating the rotational position of the shaft.

[0013] Furthermore, a heating wire for heating the infusion bag is arranged in the bottom plate.

[0014] The invention discloses a field rapid infusion device that utilizes the rotation of a rotating shaft to trigger the action of a first linkage switch or a second linkage switch. When the rotating shaft rotates too much, the first linkage switch closes and an alarm sounds, reminding medical personnel to adjust the position of a pressure plate to reduce pressure, and the second linkage switch is in a disconnected state at this time. When the rotating shaft rotates too little, the second linkage switch closes, reminding medical personnel to adjust the position of a pressure plate to reduce pressure, and the first linkage switch is in a disconnected state at this time. When adjusting, the adjustment lever is rotated to drive the pressure plate to move to achieve adjustment. The adjustment is convenient and can provide an immediate warning to avoid excessive or insufficient pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of a preferred embodiment of a rapid infusion device for field use of the present invention.

[0016] Figure 2 It is a longitudinal sectional view of the pressurizing device.

[0017] Figure 3 It is a transverse cross-sectional view of the pressurizing device.

[0018] Figure 4 This is the circuit control schematic diagram of the alarm.

[0019] Figure 5 It is a structural diagram of the base plate.

[0020] Figure 6 It is a structural schematic diagram of the first installation slot.

[0021] Figure 7 It is a structural diagram of the fixing parts.

[0022] Figure 8 It is a structural diagram of the connecting plate.

[0023] Fig. 9 It is a structural diagram of the rotating shaft.

[0024] Fig.10 It is a schematic diagram of the structure of the trigger part adapted to the first linkage switch and the second linkage switch.

[0025] The meanings of the symbols in the accompanying drawings are:

[0026] Bottom plate 1, plate body 11, seat plate 101, heat conducting plate 102, slot 111, first mounting slot 112, first pivoting portion 113, first pivoting hole 114, groove 115, infusion tube hole 116, fixing member 12, tube body 121, connecting hole 1211, connecting body 122, mounting portion 123, second mounting slot 1231, cover plate 13, connecting plate 2, first pivoting portion 21, second pivoting hole 211, screw hole 22, limiting slot 23, pressing plate 3, adjusting rod 4, adjusting disk 41, screw rod 42, rotating shaft 5, shaft rod 51, locking sleeve 52, mounting hole 521, anti-drop cap 53, triggering portion 54, torsion spring 6, first linkage switch 71, second linkage switch 72, main switch 73, alarm 74, power supply 75, heating wire 8. DETAILED DESCRIPTION

[0027] The present invention will be further described below in conjunction with the accompanying drawings.

[0028] Embodiment 1

[0029] like Figures 1 to 4As shown, a preferred embodiment of a field rapid infusion device of the present invention comprises a bottom plate 1, a connecting plate 2, a pressing plate 3, an adjusting rod 4, a rotating shaft 5, a torsion spring 6, a first linkage switch 71, a second linkage switch 72, an alarm 74 and a power supply 75. The adjusting rod 4 is screwed on the connecting plate 2, the adjusting rod 4 passes through the connecting plate 2 and is rotatably arranged on the pressing plate 3, the pressing plate 3 is used to press the infusion bag, and the connecting plate 2 is used to drive the pressing plate 3 to move. The bottom plate 1 is used to cooperate with the connecting plate 2 to squeeze the infusion bag. The bottom plate 1 and the connecting plate 2 are pivoted by the rotating shaft 5. The rotating shaft 5 is fixed to the connecting plate 2. The connecting plate 2 rotates to drive the rotating shaft 5 to rotate. One end of the torsion spring 6 is connected to the rotating shaft 5, and the other end of the torsion spring 6 is connected to the bottom plate 1. When the connecting plate 2 rotates away from the bottom plate 1, the rotating shaft 5 drives the torsion spring 6 to store force, and the stored force is transmitted to the connecting plate 2. The connecting plate 2 transmits the force to the pressing plate 3, so that the pressing plate 3 has a pressure toward the bottom plate 1, so that it can cooperate with the bottom plate 1 to squeeze the infusion bag. The pressure of the connecting plate 2 is transmitted to the pressing plate 3, and the rotation of the adjusting rod 4 can drive the pressing plate 3 to move, thereby changing the angle of the connecting plate 2 relative to the bottom plate 1, and then adjusting the pressure applied by the pressing plate 3 to the infusion bag. Due to the characteristics of the torsion spring 6, the greater the angle of the torsion spring 6 being twisted, the greater the force it stores. Therefore, the greater the angle of the rotating shaft 5 rotation, the greater the pressure applied by the pressing plate 3 to the infusion bag. The first linkage switch 71 and the second linkage switch 72 are both electrically connected to the alarm 74, and the first linkage switch 71 and the second linkage switch 72 are both used to control the on and off of the alarm 74 and the power supply 75. The first linkage switch 71 and the second linkage switch 72 are both matched with the rotating shaft 5. When the rotating shaft 5 rotates to a predetermined angle, the first linkage switch 71 or the second linkage switch 72 will be triggered to close. Specifically, when the rotating shaft 5 rotates at an angle that is too large, the first linkage switch 71 closes the alarm 74 to alarm, and the second linkage switch 72 is disconnected at this time; when the rotating shaft 5 rotates at an angle that is too small, the second linkage switch 72 closes the alarm 74 to alarm, and the first linkage switch 71 is disconnected at this time. In order to ensure that the first linkage switch 71 and the second linkage switch 72 always remain in a closed or disconnected state without external force, the first linkage switch 71 and the second linkage switch 72 are usually used as a seesaw switch or a toggle switch. In this embodiment, a seesaw switch is used. A heating wire 4 for heating an infusion bag is installed on the bottom plate 1 to facilitate heating of the medicine that needs to be heated. It should be known that a heating switch 81 is connected between the heating wire 8 and the power supply 75, and the heating switch 81 is used to turn on or off the heating wire 8. When the heating switch 81 is closed, the heating wire 8 heats up, and when the heating switch 81 is disconnected, the heating wire 8 stops heating.

[0030] In another embodiment, in order to avoid the alarm 74 from sounding in the initial state, a main switch 73 is further provided, and the main switch 73 is used to control the on and off of the entire circuit, that is, when the main switch 73 is closed, the first linkage switch 71 and the second linkage switch 72 are connected to the power supply 75, and when the main switch 73 is disconnected, the first linkage switch 71 and the second linkage switch 72 are disconnected from the power supply 75.

[0031] like Figure 5 and Figure 6 As shown, the bottom plate 1 has a slot 111 and a first mounting slot 112. The slot 111 is used to match the plug board 23, that is, when the plug board 23 is located in the slot 111, the bottom plate 1 can be mounted on the mounting seat to achieve the entire pressurizing device 3 being mounted on the mounting seat. The first mounting slot 112 is used to install the alarm 74 and the power supply 75.

[0032] The bottom plate 1 includes a plate body 11, a fixing member 12 and a cover plate 13. The plate body 11 is used to cooperate with the pressing plate 3 to squeeze the infusion bag. The slot 111 and the first mounting slot 112 are both provided on the plate body 11. The slot 111 is formed by being recessed upward from the bottom surface of the plate body 11. The first mounting slot 112 is located outside the plate body 11. The side of the plate body 11 close to the pressing plate 3 is the inside, and the other side opposite to the inside is the outside. The cover plate 13 is snapped onto the plate body 11, and the cover plate 13 is used to seal the first mounting slot 112. The fixing member 12 is detachably mounted on the plate body 11. The fixing member 12 is used to mount one end of the torsion spring 6. The first linkage switch 71 and the second linkage switch 72 are mounted on the fixing member 12. The plate body 11 has a first pivoting portion 113, which is located on the central axis of the plate body 11. The first pivoting portion 113 is provided with a first pivoting hole 114, and the rotating shaft 5 is inserted into the first pivoting hole 114. The plate body 11 is provided with a groove 115 with an arc-shaped cross section and an infusion tube hole 116 connected to the groove 115. The infusion bag is placed in the groove 115. The infusion tube hole 116 extends upward from the bottom surface of the plate body 11 to the groove 115 to avoid squeezing the infusion tube on the infusion bag during squeezing of the infusion bag. The heating wire 8 is provided on the plate body 11.

[0033] The plate body 11 includes a seat plate 101 and a heat conducting plate 102. The heat conducting plate 102 is installed on the seat plate 101 by fasteners such as screws. The heat conducting plate 102 and the seat plate 101 are both provided with S-shaped semicircular grooves, and the two semicircular grooves are combined to form a placement groove for placing the heating wire 8. The heat conducting plate 102 is made of a material with good thermal conductivity, and transfers the heat generated by the heating wire 8 to the infusion bag as much as possible to reduce heat loss; the seat plate 101 is usually made of a material with poor thermal conductivity to avoid heat transfer to the outside. The slot 111 and the first mounting slot 112 are both provided on the seat plate 101, and the fixing member 12 is fixed on the seat plate 101. The plate body 11 is set in two parts to facilitate the installation of the heating wire 8.

[0034] like Figure 2 and Figure 7 As shown, the fixing member 12 includes a tube body 121 and a connector 122. The connector 122 is used to connect with the bottom plate 1. Screws are usually used to achieve a detachable connection with the bottom plate 1. The tube body 121 and the connector 122 are integrated, which is convenient for processing and manufacturing. The tube body 121 is used to accommodate the torsion spring 6. One end of the tube body 121 is set to be closed to avoid exposing the rotating shaft 5 and the torsion spring 6. The closed end of the tube body 121 is provided with a connecting hole 1211. One end of the torsion spring 6 is inserted into the connecting hole 1211. The connecting hole 1211 passes through the closed end, so that it is easy to observe whether the torsion spring 6 is inserted into the connecting hole 1211. The tube body 121 is provided with a mounting portion 123 on one side of the plate body 11, and the mounting portion 123 is provided with two second mounting grooves 1231, which are respectively used to install the first linkage switch 71 and the second linkage switch 72. The tube body 121 and the mounting portion 123 form an avoidance opening, so that the surface of the mounting portion 123 provided with the second mounting groove 1231 is exposed to the outside, so that the first linkage switch 71 and the second linkage switch 72 can be easily installed.

[0035] like Figure 8As shown, the connecting plate 2 is provided with two second pivoting parts 21, each of which is provided with a second pivoting hole 211, and the rotating shaft 5 is located in the second pivoting hole 211. The two second pivoting parts 21 are located on the left and right sides of one end of the connecting plate 2, so as to be misaligned with the first pivoting part 113, so that the rotating shaft 5 can be inserted into the first pivoting hole 114 and the second pivoting hole 211 at the same time. The connecting plate 2 is provided with a screw hole 22, and the adjusting rod 4 is screwed in the screw hole 22, so that the lower end of the adjusting rod 4 can be moved by rotating the adjusting rod 4. The connecting plate 2 is also provided with a limiting groove 23, and the limiting groove 23 is used to limit the pressing plate 3; specifically, the limiting groove 23 is in a quadrilateral shape, and the outer shape of the pressing plate 3 is adapted to the outer shape of the limiting groove 23. In other embodiments, the limiting groove 23 can also be other numbers of polygons or special shapes, and non-circular styles are all acceptable. When the limiting groove 23 is non-circular, the adjusting rod 4 is connected to the pressing plate 3 through a bearing. The non-circular shape can utilize the shape of the limiting groove 23 to limit the rotation of the pressing plate 3, ensuring that the pressing plate 3 will not rotate and can move along the height direction of the limiting groove 23, thereby avoiding rotational friction with the infusion bag.

[0036] The bottom of the pressing plate 3 is protruding and fits into the groove 115, thus ensuring that the liquid in the infusion bag can be completely emptied.

[0037] refer to Figure 2 The adjusting rod 4 includes an adjusting disk 41 and a screw 42. The lower end of the screw 42 is smooth, so it is convenient to connect with the pressing plate 3 through a bearing. The screw 42 is screwed in the screw hole 22 of the connecting plate 2, so that when it rotates, it can drive the pressing plate 3 away from or close to the bottom plate 1, thereby pushing the connecting plate 2 to rotate in the opposite direction away from the bottom plate 1.

[0038] like Fig. 9 and Fig.10As shown, the rotating shaft 5 includes a shaft 51 for pivoting the bottom plate 1 and the connecting plate 2 and a locking sleeve 52 for fixing the shaft 51 on the connecting plate 2. The shaft 51 is inserted into the first pivot hole 114 and the second pivot hole 211. One end of the shaft 51 has an anti-drop cap 53, and the locking sleeve 52 is detachably mounted on the other end of the shaft 51. Since the pivoting portion of the connecting plate 2 is on both sides of the connecting plate 2, the anti-drop cap 53 cooperates with the locking sleeve 52 to fix the shaft 51 on the connecting plate 2 and pivot with the bottom plate 1. In order to facilitate disassembly and installation, the locking sleeve 52 is installed on the shaft 51 in a screw connection manner. The locking sleeve 52 is also provided with a mounting hole 522, and the mounting hole 522 is used to install the torsion spring 6, that is, one end of the torsion spring 6 is inserted into the connecting hole 1211 of the tube body 121, and the other end of the torsion spring 6 is inserted into the mounting hole 522 of the locking sleeve 52, so that the rotating shaft 5 rotates to pull the torsion spring 6 to store force. In another embodiment, the shaft 51 can also be fixed to the connecting plate 2 by welding, interference fit or clamping, etc., to ensure that the rotating shaft 5 can be driven to rotate when the connecting plate 2 rotates. The locking sleeve 52 is also provided with a trigger portion 54, which is formed by the outer wall of the locking sleeve 52 protruding outward, and the trigger portion 54 is used to touch the first linkage switch 71 and the second linkage switch 72. The shaft rod 51 has a large diameter section and a small diameter section, the small diameter section is provided with a thread, the locking sleeve 52 is screwed on the small diameter section, and the junction of the large diameter section and the small diameter section forms a limiting surface, and the limiting surface is used to limit the installation position of the locking sleeve 52 to ensure that the locking sleeve 52 can always be installed at this position, and to ensure that the trigger part 54 can cooperate well with the first linkage switch 71 and the second linkage switch 72.

[0039] When rapid infusion is required, the connecting plate 2 is opened to place the infusion bag into the groove 115. When the connecting plate 2 is opened, the torsion spring 6 is synchronously charged, and then the connecting plate 2 is released to press the pressure plate 3 on the infusion bag, and the main switch 73 is turned on to perform pressurized infusion. If the angle of the pressure plate 3 relative to the bottom plate 1 is too large, the first linkage switch 71 is pushed to close by the trigger part 54 of the rotating shaft 5, and the alarm 74 is powered on to alarm to remind the medical staff to adjust the position of the pressure plate 3 to adjust the pressure. During pressurized infusion, as the infusion bag gradually flattens, the pressure plate 3 is also gradually reset under the action of the torsion spring 6, so that the angle of the pressure plate 3 relative to the bottom plate 1 gradually decreases. After it decreases to a certain extent, the pressure applied by the pressure plate 3 is insufficient. At this time, the second linkage switch 72 is closed under the push of the trigger part 54, and the alarm 74 is powered on to alarm to remind the medical staff to adjust the position of the pressure plate 3 to adjust the pressure.

[0040] Embodiment 2

[0041] The difference between this embodiment and the first embodiment is that two marks (not shown) are further provided on the locking sleeve 52, which are used to represent the maximum pressure position and the too-low pressure position respectively, and the marks are usually stickers or lines or patterns drawn with a pen on the locking sleeve 52. In order to better distinguish the marks, the two marks are usually in different colors, red for the maximum pressure position and green for the too-low pressure position.

[0042] The above are only implementation modes of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure made using the contents of the present invention's specification and drawings, directly or indirectly used in other related technical fields, are also within the patent protection scope of the present invention.

Claims

1. A rapid infusion device for field use, characterized in that: The invention comprises a pressurizing device for pressurizing an infusion bag, wherein the pressurizing device comprises a base plate and a pressure plate for clamping the infusion bag, a connecting plate for installing the pressure plate, an adjusting rod for adjusting the position of the pressure plate on the connecting plate, a rotating shaft for pivotally connecting the base plate and the connecting plate, a torsion spring for storing force under external force, an alarm for alarming, a first linkage switch and a second linkage switch for controlling the power on and off of the alarm, and a power supply for supplying power to the alarm, the pressure plate is connected to the adjusting rod, the adjusting rod is screwed on the connecting plate, the connecting plate is fixed to the rotating shaft, one end of the torsion spring is fixed on the rotating shaft, and the other end of the torsion spring is fixed on the base plate, the rotation of the rotating shaft drives the torsion spring to store force, the rotation of the rotating shaft triggers the action of the first linkage switch or the second linkage switch, and the alarm, power supply, first linkage switch and second linkage switch are all mounted on the base plate.

2. A rapid infusion device for field use as claimed in claim 1, characterized in that: The pressurizing device also includes a main switch for controlling the on and off of the power supply and the first linkage switch and the second linkage switch.

3. A rapid infusion device for field use as claimed in claim 1, characterized in that: The base plate includes a plate body for installing a power supply and an alarm and a fixing part for installing a torsion spring, the fixing part is detachably installed on the plate body, the first linkage switch and the second linkage switch are installed on the fixing part, the heating wire is arranged on the plate body, a first mounting groove is arranged on the plate body, the alarm and the power supply are installed in the first mounting groove, and a cover plate for sealing the first mounting groove is installed on the first mounting groove.

4. A rapid infusion device for field use as claimed in claim 3, characterized in that: The fixing member includes a tube body for installing a torsion spring and a connector for connecting to a base plate. The tube body extends toward the plate body to form a mounting portion. The mounting portion is provided with two second mounting grooves for installing a first linkage switch and a second linkage switch, respectively. The tube body and the mounting portion form an avoidance opening.

5. A rapid infusion device for field use as claimed in claim 4, characterized in that: One end of the tube body is closed, and a connecting hole is provided at the closed end of the tube body. One end of the torsion spring is inserted into the connecting hole, and the connecting hole passes through the closed end.

6. A rapid infusion device for field use as claimed in claim 3, characterized in that: The bottom plate is provided with a groove for placing an infusion bag, the bottom of the pressing plate is provided with a protrusion adapted to the groove, and the bottom plate is also provided with an infusion tube hole connected to the groove.

7. A rapid infusion device for field use as claimed in claim 3, characterized in that: The bottom plate is provided with a first pivot portion, and the connecting plate is provided with two second pivot portions, the first pivot portion is located between the two second pivot portions, the first pivot portion is provided with a first pivot hole, the second pivot portion is provided with a second pivot hole, and the first pivot hole and the second pivot hole are coaxially arranged.

8. A rapid infusion device for field use as claimed in claim 1, characterized in that: The rotating shaft includes a shaft rod for pivotally connecting the base plate and the connecting plate and a locking sleeve for fixing the shaft rod on the connecting plate, one end of the shaft rod is provided with an anti-drop cap, the locking sleeve is detachably mounted on the other end of the shaft rod, one end of the torsion spring is mounted on the locking sleeve, the locking sleeve has a trigger portion, the trigger portion is formed by protruding outward from the outer wall of the locking sleeve, and the trigger portion is used to touch the first linkage switch and the second linkage switch.

9. A rapid infusion device for field use as claimed in claim 8, characterized in that: The locking sleeve is provided with two marks for indicating the rotation position of the rotating shaft.

10. A rapid infusion device for field use as claimed in claim 1, characterized in that: A heating wire for heating the infusion bag is arranged inside the bottom plate.

Images