Air pressure type medical tourniquet
Through the multi-airbag design and solenoid valve system, local pressure reduction and rapid replacement of pneumatic medical tourniquets are achieved, which solves the pain and nerve damage caused by long-term pressure in the existing technology, and improves the safety of tourniquets. and convenience.
Patent Information
- Application Number
- CN202420446621.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-08
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-03-08
AI Technical Summary
The existing air pressure tourniquet is used for a long time in the same area, causing physical pain in the patient's limbs and damage to the skin nerves, and difficulty in replacing the airbag.
An air-pressure medical tourniquet is designed with a multi-airbag design and solenoid valve system that allows for local decompression and enables rapid airbag replacement through magic bonding surfaces and clamping components.
It effectively avoids pain and nerve damage caused by long-term pressure at the same position, simplifies the airbag replacement process, and improves the safety and convenience of the tourniquet.
Smart Images
Figure CN222195064U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of pneumatic tourniquets, in particular to a pneumatic medical tourniquet. Background Art
[0002] The tourniquet is made of medical polymer material natural rubber or special rubber. It is milky white, long and flat, and packed in a point-connected stacking box. It has strong elasticity and can be continuously extracted. It is suitable for emergency hemostasis during infusion, blood drawing, blood transfusion, limb bleeding and snake and insect bite bleeding in the wild during routine treatment and rescue in medical institutions. Tourniquet hemostasis is a simple and effective hemostasis method for first aid of massive bleeding in the limbs. It achieves the purpose of hemostasis by compressing blood vessels to block blood flow. Tourniquets are widely used in general surgery for hemostasis of arteriovenous trauma to the limbs or surgical limb operations.
[0003] Chinese patent publication number CN2472668Y discloses a similar inflatable femoral artery hemostatic band, which is composed of a waist belt that can be connected into a ring, a hemostatic band, and a connecting belt connecting the two. The pressurized airbag fixed on the hemostatic band is also provided with an inflation and pressure display device.
[0004] However, when the above device is actually used, the same part will be under continuous pressure for a long time, causing pain in the patient's limbs and damage to the patient's skin nerves. In addition, when the internal airbag needs to be replaced after long-term use or damage, it cannot be replaced quickly. Utility Model Content
[0005] The present invention aims to overcome the shortcomings of the prior art that the same part will be continuously compressed for a long time, causing limb pain to the patient and damaging the patient's skin nerves, and the internal airbag cannot be quickly replaced when it needs to be replaced after long-term use or damage.
[0006] A pneumatic medical tourniquet is proposed, comprising a first cuff, a second cuff, a cloth belt for preventing the first cuff and the second cuff from accidentally falling off, a first control box for controlling the expansion of an airbag inside the first cuff, a second control box for controlling the expansion of an airbag inside the second cuff, an airbag fixing assembly for fixing the position of the airbag, and an airbag for causing compression to a limb, wherein the second cuff is arranged on one side of the first cuff, and the first cuff and the second cuff are connected by a shunt tube, cloth belts are transversely arranged at one end of the first cuff and the second cuff, a first control box and a second control box are respectively connected to the outer surfaces of the first cuff and the second cuff, and the first control box and the second control box are both arranged at one end of the cloth belt, a plurality of airbag fixing assemblies are arranged inside the first cuff and the second cuff along the length direction of the cuff, an airbag is arranged inside each airbag fixing assembly, and each airbag is connected to the control box by a pipeline.
[0007] In the technical solution of the utility model, in the technical solution of the utility model, multiple airbags are arranged inside the first cuff along the length direction of the first cuff. After the first cuff wraps the patient's limbs, gas is input into the airbags by manually pressing the hand pressure ball until the multiple airbags inside the first cuff are fully inflated. After inflation, the airbags will squeeze all positions of the patient's limbs wrapped by the first cuff. After a long period of squeezing, when pain in a part of the patient's limb needs to be relieved, the control button on the control box can be used to open the switch of the solenoid valve using the processor to release the gas inside the airbag at the corresponding position of the painful area of the patient's limb to relieve the pressure on the patient's limb. While the gas inside the airbag is gradually released, the pressure inside the airbag will also be displayed on the display screen on the control box to prevent the deflation speed from being too fast, resulting in insufficient blood perfusion of important organs, so as to solve the problem mentioned in the technical background that the same part will be continuously compressed for a long time, causing damage to the patient's skin nerves while causing pain in the patient's limbs.
[0008] The inner surface of the first cuff is provided with a first magic hook surface and a first magic soft fleece surface in parallel along the length direction of the cuff, and the airbag fixing component for fixing the airbag is arranged inside the magic soft fleece surface. When the airbag is damaged and needs to be replaced, only the first magic hook surface needs to be torn off from the first magic soft fleece surface to expose the airbag fixing component, and then the strap needs to be torn off from the upper surface of the placement bag, and then the airbag inside the placement bag is taken out, and a new airbag is placed inside the placement bag, and then the strap is re-fixed to the upper surface of the placement bag by magic glue, and then the first magic hook surface and the first magic soft fleece surface are rinsed and bonded together, so as to solve the disadvantage mentioned in the technical background that the internal airbag cannot be quickly replaced when it has been used for a long time or is damaged and needs to be replaced.
[0009] Preferably, the upper surfaces of both ends of the cloth belt are connected with a third Velcro soft fleece surface, and the lower surfaces of both ends of the cloth belt are connected with a third Velcro hook surface. After the first cuff and the second cuff are wrapped around the patient's limbs, and the internal airbags of the first cuff and the second cuff are inflated by the input gas, the airbags will also squeeze the first cuff and the second cuff when squeezing the patient's limbs. At this time, the pressure on the surfaces of the first cuff and the second cuff will increase. The original fixing method of the first cuff and the second cuff is to fix one end of the first cuff and the second cuff to the upper surface of the other end of the first cuff and the second cuff by Velcro. After the pressure on the surfaces of the first cuff and the second cuff increases, the original fixing method is too simple and may accidentally fall off during use. Now, after the first cuff and the second cuff are fixed, the two ends of the cloth belt will be adhered to the first cuff and the second cuff and the upper surface again by Velcro for secondary reinforcement.
[0010] Preferably, the first cuff and the second cuff are provided with a second magic hook surface on the upper surface of one end of the cloth belt, and the inner surface of the other end of the first cuff and the second cuff is provided with a second magic hook surface, and both ends of the inner surface of the first cuff and the second cuff are provided with clamping components. When the first cuff and the second cuff are used, the second magic hook surface is placed on the patient's limb with the second magic hook surface facing upward, and one end of the first cuff and the second cuff with the second magic hook surface is wrapped around the patient's limb and then adhered to the second magic hook surface for fixation. This method has simple steps and is easy to disassemble and fix.
[0011] Preferably, the technical solution of the utility model comprises a fixing plate, a pressure plate, a hinge shaft, a torsion spring, an umbrella block and a clamping block, the fixing plate is connected to the inner surface of the first cuff, the pressure plate is hinged to the fixing plate through the hinge shaft, the torsion spring is arranged inside the fixing plate and sleeved on the hinge shaft, one end of the torsion spring is connected to the hinge shaft, and the other end of the torsion spring is connected to the fixing plate, the umbrella block is vertically arranged on the fixing plate, a groove is provided on the pressure plate at a position corresponding to the umbrella block, the clamping block is fixedly connected in the groove, the clamping assembly is arranged on the inner wall of the first cuff and the second cuff, and the protective film can be fixed by the clamping assemblies at both ends of the first cuff and the second cuff when in use, and after the first cuff and the second cuff are used, the protective film can be removed and a new protective film can be placed inside the clamping assembly to prevent the contaminated protective film from contaminating the wound on the patient's limb.
[0012] Preferably, the inner surface of the first cuff is provided with a first magic hook surface and a first magic soft fleece surface in parallel along the length direction of the first cuff, and an airbag fixing assembly is provided inside the first soft fleece surface. When the airbag inside the first cuff needs to be replaced, the first magic hook surface is torn off from the first magic soft fleece surface, and the airbag can be replaced by opening the airbag fixing assembly. The steps are simple and effective.
[0013] Preferably, the airbag fixing assembly includes a placement bag, a strap, an air duct and a pressure sensor; the placement bag is connected to the inner surface of the first cuff, one end of the strap is connected to the first cuff at one end of the placement bag, the other end of the strap is connected to the upper surface of the placement bag by magic adhesive, one end of the air duct is connected to the airbag inside the placement bag, the other end of the air duct passes through the first cuff and is connected to the solenoid valve inside the first control box fixed on the outer surface of the first cuff; the pressure sensor is arranged inside the placement bag, and the pressure sensor is electrically connected to the display screen inside the first control box; after the airbag is damaged, the strap can be torn off from the upper surface of the placement bag, the damaged airbag inside the placement bag can be pulled out, and then a new airbag can be placed in the placement bag; after the airbag is placed in the placement bag, the strap can be re-fixed to the placement bag by magic adhesive.
[0014] Preferably, the first control box includes a shell, an air inlet pipe, a Y-shaped three-way, a four-way, a solenoid valve, a processor, a control button, a display screen and a shunt pipe. The shell is fixed to the outer surface of the cuff and the shell is hollow. One end of the air inlet pipe passes through the shell and is connected to the air inlet of the Y-shaped three-way inside the shell. The other end of the air inlet pipe is connected to a micro air pump. The four-way is arranged on one side of the Y-shaped three-way, and the air outlet on one side of the Y-shaped three-way is connected to the four-way with a pipe. The gas generated by the air pump will enter the interior of the Y-shaped three-way through the air inlet pipe, and after being shunted by the Y-shaped three-way, the gas enters the interior of the four-way, and after being shunted by the four-way, it enters the interior of the airbag through the solenoid valve and the air guide tube. After the gas inside the airbag is sufficient, the solenoid valve can be closed by the processor to prevent the gas inside the airbag from leaking from the inner wall of the airbag after the air pump stops.
[0015] Preferably, the air outlet on the other side of the Y-type tee is connected to the air inlet of the Y-type tee inside the second control box by a shunt pipe, three solenoid valves are arranged in parallel inside the shell, and each solenoid valve is connected to the air outlet of the four-way by a pipeline, a processor is arranged on one side of the four-way, and the processor is electrically connected to the three solenoid valves and the processor inside the second control box, a control button and a display screen are also arranged on the first control box, and the control button is electrically connected to the display screen and the processor, a part of the gas after being shunted by the Y-type tee enters the four-way inside the first control box, and the other part of the airflow will pass through the shunt pipe and enter the four-way inside the second control box, so when the airbag inside the first cuff is inflated by gas input, the airbag inside the second cuff will be inflated synchronously, and the processor inside the first control box is electrically connected to the processor inside the second control box, and the processor inside the first control box is electrically connected to the control button, so the solenoid valve inside the second control box can be controlled to be closed or opened only by the control button on the first control box.
[0016] Compared with the prior art, the utility model has the following beneficial effects:
[0017] 1. With the multi-airbag design, after the local skin is squeezed for a long time, the gas inside the airbag at the corresponding position can be released through the solenoid valve to avoid the skin at the same position being compressed for a long time and reduce local skin nerve damage;
[0018] 2. The airbag is fixed inside the cuff with a strap, and the entire cuff is fixed with Velcro on the inner surface of the cuff. Therefore, if the airbag inside the cuff needs to be replaced, the cuff can be quickly opened and assembled;
[0019] 3. After one end of the cuff is bonded to the outer surface of the other end of the cuff for fixation, the cuff can be reinforced again with a cloth tape, so that the cuff will not fall off easily after the air bag inside the cuff is inflated to full expansion. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of a pneumatic medical tourniquet;
[0021] Figure 2 A schematic diagram of the internal structure of a first cuff of a pneumatic medical tourniquet;
[0022] Figure 3 A left view schematic diagram of the first cuff of a pneumatic medical tourniquet (the placement bag and the air bag are integrated, and a piece is removed to show the internal structure.);
[0023] Figure 4 It is a schematic diagram of the three-dimensional structure of a first control box of a pneumatic medical tourniquet;
[0024] Figure 5 A schematic diagram of the internal structure of the first control box of a pneumatic medical tourniquet (the first control box is a whole, and a piece is removed to show the internal structure.);
[0025] Figure 6 A schematic diagram of the internal structure of the second control box of a pneumatic medical tourniquet (the second control box is a whole, and a piece is removed to show the internal structure.);
[0026] Figure 7 A schematic diagram of the structure of a clamping assembly of a pneumatic medical tourniquet (the pressure plate is a whole, and a piece is removed to show the internal structure.);
[0027] Figure 8 A schematic diagram of the structure of a support component of a pneumatic medical tourniquet is shown;
[0028] Fig. 9 for Figure 7 A schematic diagram of the enlarged structure of point A;
[0029] In the figure: 1-first cuff, 11-first magic hook surface, 12-first magic soft fur surface, 2-second cuff, 21-second magic soft fur surface, 22-second magic hook surface, 3-cloth belt, 31-third magic soft fur surface, 32-third magic hook surface, 4-first control box, 41-shell, 42-inlet pipe, 43-Y-type three-way, 44-four-way, 45-solenoid valve, 46-processor, 47-control button, 48-display screen, 49-shunt tube, 5-second control box, 6-airbag fixing assembly, 61-placement bag, 62-bandage, 63-air guide tube, 64-pressure sensor, 7-airbag, 8-clamping assembly, 81-fixing plate, 82-pressing plate, 83-hinge shaft, 84-torsion spring, 85-umbrella block, 86-card block, 9-air pump. DETAILED DESCRIPTION
[0030] The following will be combined with the attached embodiment of the utility model Figure 1-9 , the technical solutions in the embodiments of the utility model are described in detail.
[0031] like Figure 1 As shown, a pneumatic medical tourniquet comprises a first cuff 1 and a second cuff 2, wherein the second cuff 2 is arranged parallel to one side of the first cuff 1, and one end of each of the first cuff 1 and the second cuff 2 is fixedly connected with a cloth tape 3, and one end of the first cuff 1 and the second cuff 2 provided with a second magic sticky soft fur surface 21 is placed on a patient's limb, and after the other ends of the first cuff 1 and the second cuff 2 are wrapped around the patient's limb, the second magic sticky hook surface 22 is adhered to the second magic sticky soft fur surface 21 for fixation, and the cloth tape 3 will overlap with each other and be adhered to the first cuff 1 and the second cuff 2 through a third magic sticky soft fur surface 31 and a third magic sticky hook surface 32 for reinforcement, so as to prevent the first cuff 1 and the second cuff 2 from accidentally falling off from the patient's limb due to excessive pressure on the surface of the first cuff 1 and the second cuff 2 and movement of the patient after the airbags 7 inside the first cuff 1 and the second cuff 2 are inflated.
[0032] like Figure 1 As shown, the first cuff 1 is fixedly connected to the first control box 4, one end of the first control box 4 is fixedly connected to the air inlet pipe 42, one end of the air inlet pipe 42 is connected to the Y-type tee 43 inside the first control box 4, and the other end of the air inlet pipe 42 passes through the shell 41 of the first control box 4 and is connected to the air pump 9, so the airflow generated when the air pump 9 is working will flow into the Y-type tee 43 inside the first control box 4 through the air inlet pipe 42, and the second cuff 2 is fixedly connected to the second control box 5, and the first control box 4 and the second control box 5 are connected by a shunt pipe 49, so a part of the gas after being diverted by the Y-type tee 43 will also flow into the interior of the second control box 5.
[0033] like Figure 2As shown, the interior of the first cuff 1 is provided with a first magic hook surface 11 and a first magic soft fleece surface 12 in parallel, and the first magic soft fleece surface 12 and the first magic hook surface 11 are fixedly connected to the interior of the first cuff 1. When the first cuff 1 is working, the first magic hook surface 11 will stick to the first magic soft fleece surface 12, and then the first cuff 1 will wrap around the patient's limbs. A cloth belt 3 is also laterally provided at one end of the first cuff 1, and the cloth belt 3 is fixedly connected to the first cuff 1, and the two ends of the cloth belt 3 have also extended to the two sides of the first cuff 1, and the upper surfaces of the two ends of the cloth belt 3 are provided with a third magic soft fleece surface 31, and the lower surfaces of the two ends of the cloth belt 3 are provided with a third magic hook surface 32.
[0034] like Figure 2 As shown, the third magic hook surface 32 and the third magic soft fleece surface 31 are fixedly connected to the cloth tape 3, so when the end of the first cuff 1 with the second magic hook surface 22 is wrapped around the patient's limb and then adhered to the first magic hook surface 12, the cloth tape 3 can be overlapped and pressed on the first cuff 1, and when the first cuff 1 is fixed by the first magic hook surface 11 and the first magic soft fleece surface 12, the cloth tape 3 is reinforced again by the cloth tape 3. Because the third magic hook surface 32 and the third magic soft fleece surface 31 are provided at both ends of the cloth tape 3, the two ends of the cloth tape 3 will stick to each other when pressed on the first cuff 1 and will not fall off due to accidents, and a clamping component 8 is also provided inside the first magic hook surface 12.
[0035] like Figure 2 As shown, the airbag fixing assembly 6 includes a placement bag 61, a strap 62, an air duct 63 and a pressure sensor 64. There are multiple airbag fixing assemblies 6 and they are fixedly connected to the inside of the first cuff 1 along the length direction of the first cuff 1. Therefore, when the first cuff 1 is wrapped around the patient's limbs, the airbag fixing assembly 6 and the airbag 7 fixed inside the airbag fixing assembly 6 will wrap the patient's limbs together with the first cuff 1. Therefore, after the airbag 7 is inflated by the input gas, it will compress all limb parts of the patient wrapped by the first cuff 1 without causing omissions.
[0036] like Figure 2As shown, the placement bag 61 is vertically fixedly connected to the inside of the first cuff 1, one end of the strap 62 is attached to the upper surface of the placement bag 61 by magic adhesive, and the other end of the strap 62 is fixedly connected to the inside of the first cuff 1 and is located at one end of the placement bag 61. A pressure sensor 64 is also provided inside the placement bag 61, and the pressure sensor 64 is electrically connected to the display screen 48 of the first control box 4. The airbag 7 is provided inside the placement bag 61 and the airbag 7 is located above the pressure sensor 64. One end of the air duct 63 is connected to the airbag 7 inside the placement bag 61, so the airflow generated by the air pump 9 when working can enter the inside of the airbag 7 through the air duct 63, and because the airbag fixing component 6 is fixed to the inside of the first cuff 1 by the first magic hook surface 11 and the first magic soft fur surface 12, when the airbag 7 is damaged, the first cuff 1 can be opened and the airbag 7 can be replaced immediately.
[0037] like Figure 2 As shown, the other end of the air duct 63 passes through the cuff and is connected to the solenoid valve 45 inside the first control box 4, so that the airflow is transported into the interior of the airbag 7 through the air duct 63. When the airbag 7 begins to expand, the pressure sensor 64 will always monitor the gas pressure inside the airbag 7 and display it through the display. The two ends of the lower surface of the first cuff 1 are also provided with clamping assemblies 8. When the first cuff 1 wraps around the patient's limbs, the lower surface of the first cuff 1 is in direct contact with the patient's skin. Therefore, the protective film can be clamped by the clamping assemblies 8 at both ends of the first cuff 1 to prevent contamination of the lower surface of the first cuff 1. After the first cuff 1 is used, the protective film can be removed to prevent the first cuff 1 from contaminating another patient's wound when it is used next time.
[0038] like Figure 3 As shown, a second magic hook surface 21 is provided on the upper surface of one end of the first cuff 1, and a second magic hook surface 22 is provided on the lower surface of the other end of the first cuff 1. Therefore, when in use, after the end of the first cuff 1 with the second magic hook surface 21 is placed upward on the patient's limb, the other end of the first cuff 1 with the second magic hook surface 22 is wrapped around the patient's limb, and then the second magic hook surface 22 is adhered to the second magic hook surface 21 to fix it. After the first cuff 1 is used, the second magic hook surface 22 can be torn off from the second magic hook surface 21. A first control box 4 is also provided on the first cuff 1, and the first control box 4 is located on one side of the second magic hook surface 21.
[0039] like Figure 4As shown, the first control box 4 includes a shell 41, an air inlet pipe 42, a Y-shaped three-way pipe 43, a four-way pipe 44, a solenoid valve 45, a processor 46, a control button 47, a display screen 48 and a shunt pipe 49. The shell 41 is fixedly connected to the first cuff 1, and the shell 41 is provided with a control button 47 and a display screen 48. The control button 47 and the display screen 48 are electrically connected to the processor 46 inside the shell 41, and the processor 46 is electrically connected to the solenoid valve 45.
[0040] like Figure 4 As shown, when the pressure sensor 64 displays the pressure inside the airbag 7 through the display screen 48, the medical staff can control the solenoid valve 45 to switch through the processor 46 through the control button 47 to increase or decrease the gas content inside the airbag 7. The processor 46 inside the first control box 4 is electrically connected to the processor 46 inside the second control box 5. Therefore, the gas content inside the airbag 7 inside the second cuff 2 can also be directly controlled through the control button 47 on the first control box 4.
[0041] like Figure 5 As shown, a Y-shaped tee 43 is also provided inside the shell 41, and the air inlet of the Y-shaped tee 43 is fixedly connected to the air inlet pipe 42, one end of the air inlet pipe 42 is connected to the Y-shaped tee 43, and the other end of the air inlet pipe 42 passes through the shell 41 and is connected to the air pump 9. Therefore, the airflow generated by the air pump 9 when working will also flow into the interior of the Y-shaped tee 43 through the air inlet pipe 42, and the air outlet on one side of the Y-shaped tee 43 is connected to the air inlet of the cross-way 44 through a pipeline, and the air outlet on the other side of the Y-shaped tee 43 is connected to the cross-way 44 inside the second control box 5 through a diverter pipe 49. Part of the airflow after diversion by the Y-shaped tee 43 will flow into the interior of the cross-way 44, and the other part of the airflow will also flow into the cross-way 44 inside the second control box 5 through the diverter pipe 49.
[0042] like Figure 5 As shown, the air outlet of the four-way valve 44 is connected to a solenoid valve 45 through a pipeline. Therefore, after the airflow diverted by the Y-shaped three-way valve 43 enters the four-way valve 44, it will be diverted again through the four-way valve 44 and flow into the interior of the solenoid valve 45 through the pipeline. The air outlet of each solenoid valve 45 is connected to an air guide tube 63. Therefore, the airflow flowing into the interior of the solenoid valve 45 will also flow into different airbags 7 through the air guide tube 63 to inflate the airbags 7. A Y-shaped three-way valve 43 is provided on one side of the four-way valve 44, and a processor 46 is provided on the other side of the four-way valve 44. The processor 46 is electrically connected to the three solenoid valves 45, so the solenoid valves 45 can be controlled to switch by the processor 46.
[0043] like Figure 6As shown, the air outlet of the shunt tube 49 is connected to the four-way valve 44 inside the second control box 5, and the air outlet of the four-way valve 44 inside the second control box 5 is also connected to the solenoid valve 45 by a pipeline. Therefore, after being diverted by the Y-shaped three-way valve 43, a part of the airflow will be diverted by the four-way valve 44 inside the first cuff 1, and then enter the airbag 7 inside the first cuff 1 through the air guide tube 63, so that when the airbag 7 inside the first cuff 1 starts to expand, another part of the airflow will also flow into the four-way valve 44 inside the second control box 5 through the shunt tube 49, and after being diverted again by the four-way valve 44 inside the second control box 5, it will flow into the airbag 7 inside the second cuff 2, so that the airbag 7 inside the second cuff 2 will expand synchronously when the airbag 7 inside the first cuff 1 starts to expand.
[0044] like Figure 6 As shown, the second control box 5 is also provided with a processor 46 inside, and the processor 46 inside the second control box 5 is electrically connected to the processor 46 inside the first control box 4. Since the processor 46 inside the first control box 4 is electrically connected to the control button 47, the processor 46 inside the second control box 5 can be directly controlled by the control button 47, and the solenoid valve 45 inside the second control box 5 can be directly controlled by the processor 46 inside the second control box 5 to be switched.
[0045] like Figure 7-8 As shown, the clamping assembly 8 includes a fixing plate 81, a pressing plate 82, a hinge shaft 83, a torsion spring 84, an umbrella block 85 and a clamping block 86. The fixing plate 81 is connected to the lower surface of the first cuff 1, and the pressing plate 82 is hinged on the fixing plate 81 through the hinge shaft 83. Therefore, the pressing plate 82 can rotate on the fixing plate 81 through the hinge shaft 83. The torsion spring 84 is arranged inside the fixing plate 81 and sleeved on the hinge shaft 83, and one end of the torsion spring 84 is connected to the hinge shaft 83, and the other end of the torsion spring 84 is connected to the fixing plate 81. Therefore, when the pressing plate 82 rotates upward through the hinge shaft 83, the torsion spring 84 will rotate together with the hinge shaft 83 and start to accumulate force. After the pressing plate 82 is opened upward, one end of the protective film can be placed on the fixing plate 81, and the pressing plate 82 is released. The pressing plate 82 will rotate downward with the hinge shaft 83 as the center under the drive of the torsion spring 84.
[0046] like Fig. 9 As shown, an umbrella-shaped block 85 is also vertically fixedly connected to the fixed plate 81, and the top plate of the umbrella-shaped block 85 is also arranged inside the pressure plate 82. A slot is also opened at a position corresponding to the umbrella-shaped block 85 on the pressure plate 82, and a clamping block 86 is also horizontally connected inside the slot. When the pressure plate 82 is reset to the fixed plate 81 driven by the torsion spring 84, the clamping block 86 will move to the bottom of the umbrella-shaped block 85 driven by the pressure plate 82, and the position of the pressure plate 82 is fixed by the clamping block 86 using the shape of the umbrella-shaped block 85 to prevent the pressure plate 82 from accidentally falling off from the fixed plate 81.
[0047] The movement process of this embodiment is as follows: first, the pressing plate 82 is opened from the fixing plate 81, and a new protective film is placed on the fixing plate 81, and then the pressing plate 82 is released. The pressing plate 82 is reset to the fixing plate 81 under the drive of the torsion spring 84, and then the pressing plate 82 is pressed to ensure that the blocking block 86 has moved to the bottom of the umbrella-shaped block 85, and then after the first magic hook surface 11 is completely pasted on the second magic soft fleece surface 21, the first cuff 1 is placed above the wound on the patient's limb, and the second cuff 2 is placed below the wound on the patient's limb, and then the ends of the first cuff 1 and the second cuff 2 with the second magic soft fleece surface 21 are placed on the patient's limb, and the second magic soft fleece surface 21 is directed upward, and then the other ends of the first cuff 1 and the second cuff 2 are wrapped around the patient's limb, and the second magic hook surface 22 is pasted on the second magic soft fleece surface 21, and then the cloth tape 3 is overlapped and pressed and pasted on the first cuff 1 and the second cuff 2 for secondary reinforcement.
[0048] After the cloth tape 3 is completely attached to the first cuff 1 and the second cuff 2, the air pump 9 is started, and the airflow generated by the air pump 9 will also enter the interior of the Y-shaped tee 43 through the air inlet pipe 42. A part of the airflow enters the interior of the four-way 44 through the Y-shaped tee 43, and enters the interior of the solenoid valve 45 again after being diverted by the four-way 44, and enters the airbag 7 inside the first cuff 1 and the second cuff 2 through the solenoid valve 45 using the air guide tube 63, so that the airbag 7 is inflated, and the airbag 7 can squeeze the skin on the patient's limbs after being inflated.
[0049] When the airbag 7 is inflated, the pressure sensor 64 will also constantly display the gas pressure inside the airbag 7 on the display screen 48 of the first control box 4. After the pressure inside the airbag 7 reaches the standard, the control button 47 can be pressed to close the solenoid valve 45 inside the first control box 4 and the second control box 5 through the processor 46, and then the air pump 9 is turned off to prevent the pressure inside the airbag 7 from being too high and causing excessive pressure on the patient's skin.
[0050] The above embodiments are only for illustrating the technical idea of the present utility model, and cannot be used to limit the protection scope of the present utility model. Any changes made on the basis of the technical solution in accordance with the technical idea proposed by the present utility model shall fall within the protection scope of the present utility model.
Claims
1. A pneumatic medical tourniquet, characterized in that: The invention comprises a first cuff (1), a second cuff (2), a cloth belt (3) for preventing the first cuff (1) and the second cuff (2) from accidentally falling off, a first control box (4) for controlling the expansion of an air bag (7) inside the first cuff (1), a second control box (5) for controlling the expansion of an air bag (7) inside the second cuff (2), an air bag fixing component (6) for fixing the position of the air bag (7), and an air bag (7) for causing compression to a limb, wherein the second cuff (2) is arranged on one side of the first cuff (1), and the first cuff (1) and the second cuff (2) are connected by a shunt tube (49). The first cuff (1) and the second cuff (2) are connected to each other, one end of each cuff is transversely provided with a cloth belt (3), the outer surfaces of the first cuff (1) and the second cuff (2) are respectively connected with a first control box (4) and a second control box (5), and the first control box (4) and the second control box (5) are both arranged at one end of the cloth belt (3), and the inside of the first cuff (1) and the second cuff (2) are provided with a plurality of airbag fixing components (6) along the length direction of the cuff, and each airbag fixing component (6) is provided with an airbag (7), and each airbag (7) is connected to the control box by a pipeline.
2. A pneumatic medical tourniquet according to claim 1, characterized in that: The upper surfaces at both ends of the cloth belt (3) are connected to third magic soft fleece surfaces (31), and the lower surfaces at both ends of the cloth belt (3) are connected to third magic hook surfaces (32).
3. The pneumatic medical tourniquet according to claim 1, characterized in that: The first cuff (1) and the second cuff (2) are both provided with a second magic soft fleece surface (21) on the upper surface of one end of the cloth belt (3), the inner surface of the other end of the first cuff (1) and the second cuff (2) are both provided with a second magic hook surface (22), and both ends of the inner surface of the first cuff (1) and the second cuff (2) are provided with a clamping assembly (8).
4. A pneumatic medical tourniquet according to claim 3, characterized in that: The clamping assembly (8) comprises a fixing plate (81), a pressing plate (82), a hinge shaft (83), a torsion spring (84), an umbrella-shaped block (85) and a clamping block (86); the fixing plate (81) is connected to the inner surface of the first cuff (1); the pressing plate (82) is hinged to the fixing plate (81) via the hinge shaft (83); the torsion spring (84) is arranged inside the fixing plate (81) and sleeved on the hinge shaft (83); one end of the torsion spring (84) is connected to the hinge shaft (83); the other end of the torsion spring (84) is connected to the fixing plate (81); the umbrella-shaped block (85) is vertically arranged on the fixing plate (81); a slot is provided at a position on the pressing plate (82) corresponding to the umbrella-shaped block (85); and the clamping block (86) is fixedly connected in the slot.
5. The pneumatic medical tourniquet according to claim 3, characterized in that: The inner surface of the first cuff (1) is provided with a first magic hook surface (11) and a first magic soft fleece surface (12) in parallel along the length direction of the first cuff (1), and an airbag fixing component (6) is provided inside the first magic soft fleece surface (12).
6. A pneumatic medical tourniquet according to claim 5, characterized in that: The air bag fixing assembly (6) comprises a placement bag (61), a strap (62), an air guide tube (63) and a pressure sensor (64); the placement bag (61) is connected to the inner surface of the first cuff (1); one end of the strap (62) is connected to the first cuff (1) at one end of the placement bag (61); the other end of the strap (62) is connected to the upper surface of the placement bag (61) by magic adhesive; one end of the air guide tube (63) is connected to the air bag (7) inside the placement bag (61); the other end of the air guide tube (63) passes through the first cuff (1) and is connected to the solenoid valve (45) inside the first control box (4) fixed on the outer surface of the first cuff (1); the pressure sensor (64) is arranged inside the placement bag (61), and the pressure sensor (64) is electrically connected to the display screen (48) inside the first control box (4).
7. A pneumatic medical tourniquet according to claim 6, characterized in that: The first control box (4) comprises a shell (41), an air inlet pipe (42), a Y-shaped three-way pipe (43), a four-way pipe (44), a solenoid valve (45), a processor (46), a control button (47), a display screen (48) and a shunt pipe (49); the shell (41) is fixed to the outer surface of the cuff and the shell (41) is hollow inside; one end of the air inlet pipe (42) passes through the shell (41) and is connected to an air inlet of the Y-shaped three-way pipe (43) inside the shell (41); the other end of the air inlet pipe (42) is connected to a micro air pump (9); the four-way pipe (44) is arranged on one side of the Y-shaped three-way pipe (43), and an air outlet on one side of the Y-shaped three-way pipe (43) is connected to the four-way pipe (44) by a pipeline.
8. The pneumatic medical tourniquet according to claim 7, characterized in that: The air outlet on the other side of the Y-shaped three-way (43) is connected to the air inlet of the Y-shaped three-way (43) inside the second control box (5) by means of a shunt pipe (49); three solenoid valves (45) are also arranged in parallel inside the housing (41), and each solenoid valve (45) is connected to the air outlet of the four-way (44) by means of a pipeline; a processor (46) is arranged on one side of the four-way (44), and the processor (46) is electrically connected to the three solenoid valves (45) and the processor (46) inside the second control box (5); a control button (47) and a display screen (48) are also arranged on the first control box (4), and the control button (47) is electrically connected to the display screen (48) and the processor (46).