Internal arteriovenous fistula restraining and protecting device

Abstract

The utility model relates to the technical field of medical instruments, in particular to an internal arteriovenous fistula restraint protection device which comprises a sensing assembly, a control assembly, a power supply assembly and an alarm assembly. The sensing assembly is a flexible sensing piece and is electrically connected with the control assembly so as to be fixed to the wound part to detect whether the wound bleeding occurs or not. The control assembly is further electrically connected with the power supply assembly and the alarm assembly, the power supply assembly supplies power to the blood detection alarm mechanism, and the control assembly acts on the induction assembly to control the alarm assembly to give an alarm when wound bleeding is detected. Therefore, the treatment towel can play a certain role in isolating bacteria, and the existence of the treatment towel does not interfere with the detection of wound blood loss, so that an alarm can be given to medical personnel in time when the wound blood loss is found, and the injury to a patient due to the fact that the wound blood is not found in time is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to an arteriovenous fistula restraint protection device. Technical Background

[0002] Arteriovenous fistula is a vascular channel established under the skin by arteries and veins. That is, through surgical operation, the patient's superficial veins and peripheral arteries are anastomosed to allow arterial blood to flow through the superficial veins, thereby establishing extracorporeal circulation during hemodialysis and achieving the required blood flow. After the operation, the arterial blood flowing in the superficial veins continuously impacts the blood vessel wall, causing the venous wall to expand and thicken, and the venous blood vessels to arterialize. This process is called fistula maturation. The mature veins are easy to puncture, and hemodialysis can generally be performed 4 to 8 weeks after the operation. Patients with arteriovenous fistulas usually need 4-5 hours of dialysis treatment each time. During the treatment, the patient may unconsciously move the upper limb on the fistula side or use the hand on the fistula side to scratch due to skin itching, etc., which may cause the fistula puncture needle to puncture the blood vessel to cause hematoma or the fistula puncture needle to fall off and cause blood loss. This will affect the treatment and increase the patient's pain, so it is necessary to restrain the patient's upper limb on the fistula side.

[0003] The main restraint method currently used is the traditional wrist restraint. However, the traditional wrist restraint will cause the restraint belt to be pulled tighter and tighter for patients with arteriovenous fistula who are unconscious and irritable, which can easily cause skin damage. Even the movement of the patient's wrist when sleeping or turning over can cause poor blood flow and cause blockage of the fistula.

[0004] In order to solve the above technical problems, the Chinese utility model patent with application number 202120106018.5 announced an arm support device for arteriovenous fistula patients during dialysis, which is characterized by: comprising a box body, a treatment towel compartment and an arm placement slot adjacently arranged in the box body, the arm placement slot is an arc-shaped slot body with an open top surface, a slit is arranged on the treatment towel compartment, the slit is arranged toward one side of the arm placement slot, and a plurality of tube clamps are arranged on the outer wall of the box body. The arm placement slot designed in this utility model effectively supports and fixes the patient's arm during dialysis, and lightly covers the wound by flexibly extracting the treatment towel in the treatment towel compartment, which plays a certain isolation role. The tube clamp is used to fix the inlet and outlet blood transfusion tubes during dialysis work, to prevent the blood transfusion tubes from hanging for a long time, causing the needle to detach from the wound, or other people from excessively colliding and pulling the blood transfusion tubes, causing danger.

[0005] However, in the above-mentioned prior art, although the treatment towel compartment and the arm placement slot are adjacently arranged in the box body, the wound can be lightly covered by flexibly drawing out the treatment towel in the treatment towel compartment to play a certain isolation role, but the treatment towel, while playing a certain role in isolating bacteria, also blocks the medical staff's line of sight, resulting in the blood loss caused by the needle leaving the wound cannot be discovered in time, posing a great safety hazard to the patient. Utility Model Content

[0006] In view of this, it is necessary to provide an arteriovenous fistula restraint protection device, so that the treatment towel can play a certain role in isolating bacteria while avoiding affecting the discovery of blood loss from the wound.

[0007] An arteriovenous fistula restraint protection device comprises: a restraint protection mechanism, a treatment towel storage mechanism, a treatment towel extraction mechanism and a blood detection alarm mechanism; the restraint protection mechanism comprises an upper C-type restraint component and a lower C-type restraint component, both of which have the same structure and size, one side of the upper C-type restraint component and the lower C-type restraint component are connected by a hinge, and the other side is fastened by a fastening belt to restrain and protect the upper limb on the fistula side; both ends of the lower C-type restraint component are fixed with the treatment towel extraction mechanism; the treatment towel storage mechanism is fixedly installed at the bottom of the lower C-type restraint component, and is used to For storing treatment towels, an opening is provided on the treatment towel storage mechanism for the treatment towel extraction mechanism to extract the treatment towel; the blood detection alarm mechanism is fixedly mounted on the lower C-shaped restraint component, comprising a sensing component, a control component, a power supply component and an alarm component; the sensing component is a flexible sensing sheet, electrically connected to the control component, so as to be fixed on the wound site to detect whether the wound is bleeding; the control component is also electrically connected to the power supply component and the alarm component, the power supply component supplies power to the blood detection alarm mechanism, and the control component controls the alarm component to alarm when the sensing component detects wound bleeding.

[0008] Preferably, the lower C-type restraint assembly includes a C-type restraint groove, a movable airbag groove and an elastic inflatable airbag; the elastic inflatable airbag is fixedly installed in the movable airbag groove; three groups of C-type slide grooves are equidistantly arranged on the inner side of the C-type restraint groove to slideably install the movable airbag groove, a hinge is provided on one side of the C-type restraint groove to hinge the upper C-type restraint assembly and the lower C-type restraint assembly, and a restraint groove fastening belt is provided on the other side to close and fasten the hinged upper C-type restraint assembly and the lower C-type restraint assembly; the therapeutic towel storage mechanism is fixedly installed below the C-type restraint groove of the lower C-type restraint assembly.

[0009] Preferably, the C-shaped restraining groove is provided with ventilation holes.

[0010] Preferably, the C-shaped restraining groove is a transparent part.

[0011] Preferably, the restraint and protection mechanism also includes an airway, a valve and a hand-pinch airbag; the valve is fixedly mounted on the C-shaped restraint groove of the lower C-shaped restraint assembly, one end of the valve is connected to the elastic inflatable airbag, and the other end is connected to the hand-pinch airbag through the airway, so that air can be inflated into the elastic inflatable airbag through the hand-pinch airbag to restrain and protect the upper limb on the fistula side.

[0012] Preferably, the treatment towel extraction mechanism includes a C-shaped slide rail and a clamp; the C-shaped slide rail is fixedly mounted at both ends of the C-shaped constraint groove, and the axes of the two are in the same straight line; the clamp is slidably mounted on the C-shaped slide rail, with the clamp facing the inner side of the C-shaped constraint groove to clamp the treatment towel and extract it from the treatment towel storage mechanism.

[0013] Preferably, the arteriovenous fistula restraint protection device also includes an angle adjustment mechanism, which is fixedly installed below the treatment towel storage mechanism, and includes a base plate and an angle adjustment plate; the base plate is a rectangular plate, and a row of limiting teeth are provided on the plate; one end of the treatment towel storage mechanism is hinged to the base plate, and the other end is hinged to one end of the angle adjustment plate; the other end of the angle adjustment plate can be clamped on the limiting teeth of the base plate to adjust the angle between the arteriovenous fistula restraint protection device and the bed surface.

[0014] Preferably, the alarm component includes a warning light and a buzzer for sending out light and sound signal alarms.

[0015] In the above-mentioned arteriovenous fistula restraint protection device, the blood detection alarm mechanism includes a sensing component, a control component, a power supply component and an alarm component; the sensing component is a flexible sensing sheet, which is electrically connected to the control component to be fixed at the wound site to detect whether the wound is bleeding; the control component is also electrically connected to the power supply component, the light-emitting component and the sound-emitting component, and the power supply component provides power for the blood detection alarm mechanism. The control component detects wound bleeding through the sensing component and controls the alarm component to emit an audible and visual signal alarm. In this way, not only can the treatment towel play a certain role in isolating bacteria, but the presence of the treatment towel will not interfere with the detection of wound bleeding, so that when wound bleeding is found, it can promptly alarm the medical staff, avoiding the harm to the patient caused by the failure to timely discover wound bleeding. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the arteriovenous fistula restraint protection device.

[0017] Figure 2 Schematic diagram of the blood test alarm mechanism.

[0018] Figure 3 It is a schematic diagram of the structure of the lower C-type restraint assembly.

[0019] Figure 4 It is a structural schematic diagram of a C-type constraint groove.

[0020] Figure 5 It is a schematic diagram of the structure of the movable airbag slot.

[0021] Figure 6 It is a structural diagram of the restraint protection mechanism.

[0022] Figure 7 It is a structural schematic diagram of the treatment towel extraction mechanism.

[0023] Figure 8 It is a structural schematic diagram of the angle adjustment mechanism.

[0024] In the figure: an arteriovenous fistula restraint protection device 10, a restraint protection mechanism 11, an upper C-type restraint component 111, a lower C-type restraint component 112, a C-type restraint slot 1121, a movable airbag slot 1122, an elastic inflatable airbag 1123, an air vent 1124, an air guide tube 113, a valve 114, a hand-pinch airbag 115, a treatment towel storage mechanism 12, a treatment towel extraction mechanism 13, a C-type slide rail 131, a clamp 132, an angle adjustment mechanism 14, a base plate 141, an angle adjustment plate 142, a blood detection alarm mechanism 15, a sensing component 151, a control component 152, a power supply component 153, an alarm component 154, a warning light 1541, and a buzzer 1542. DETAILED DESCRIPTION

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Please see Figures 1 to 8The present application provides an arteriovenous fistula restraint protection device 10, comprising: a restraint protection mechanism 11, a treatment towel storage mechanism 12, a treatment towel extraction mechanism 13 and a blood detection alarm mechanism 15; the restraint protection mechanism 11 comprises an upper C-type restraint component 111 and a lower C-type restraint component 112, both of which have the same structure and size, and one side of the upper C-type restraint component 111 and the lower C-type restraint component 112 are connected by a hinge, and the other side is fastened with a fastening belt to restrain and protect the upper limb on the fistula side; both ends of the lower C-type restraint component 112 are fixed with the treatment towel extraction mechanism 13; the treatment towel storage mechanism 12 is fixedly installed at the bottom of the lower C-type restraint component 112 to store the treatment towel. The treatment towel, the treatment towel storage mechanism 12 is provided with an opening for the treatment towel extraction mechanism 13 to extract the treatment towel; the blood detection alarm mechanism 15 is fixedly mounted on the lower C-shaped restraint component 112, and comprises a sensing component 151, a control component 152, a power supply component 153 and an alarm component 154; the sensing component 151 is a flexible sensing sheet, which is electrically connected to the control component 152 to be fixed on the wound site to detect whether the wound is bleeding; the control component 152 is also electrically connected to the power supply component 153 and the alarm component 154, the power supply component 153 supplies power to the blood detection alarm mechanism 15, and the control component 152 acts on the sensing component 151 to control the alarm component 154 to alarm when it detects bleeding from the wound.

[0027] In this embodiment, the fastening strap is Velcro, the fleece surface of the Velcro is fixed on the lower C-type restraint component 112, and the thorn surface of the Velcro is fixed on the upper C-type restraint component 111, and the fleece surface and the thorn surface cooperate to connect the upper C-type restraint component 111 and the lower C-type restraint component 112; the therapeutic towel storage mechanism 12 is provided with an ultraviolet sterilization device, which can sterilize the therapeutic towels stored in the therapeutic towel storage mechanism 12.

[0028] For further information, see Figure 3 , Figure 4 and Figure 5The lower C-type restraint assembly 112 includes a C-type restraint groove 1121, a movable airbag groove 1122 and an elastic inflatable airbag 1123; the elastic inflatable airbag 1123 is fixedly installed in the movable airbag groove 1122; three groups of C-type slide grooves are equidistantly arranged on the C-type restraint groove 1121 to slideably install the movable airbag groove 1122; a hinge is arranged on the inner side of the C-type restraint groove 1121 to hinge the upper C-type restraint assembly 111 and the lower C-type restraint assembly 112; a fastening belt is arranged on the other side to close and fasten the hinged upper C-type restraint assembly 111 and the lower C-type restraint assembly 112; the therapeutic towel storage mechanism 12 is fixedly installed below the C-type restraint groove 1121 of the lower C-type restraint assembly 112. In this embodiment, the fastening belt is a Velcro, the fur surface of the Velcro is fixed on the C-shaped constraint groove 1121 of the lower C-shaped constraint component 112, and the thorn surface of the Velcro is fixed on the C-shaped constraint groove 1121 on the upper C-shaped constraint component 111, and the fur surface and the thorn surface cooperate to connect the upper C-shaped constraint component 111 and the lower C-shaped constraint component 112; the elastic inflatable airbag 1123 can adjust its position following the movable airbag groove 1122 to avoid the blood vessels near the fistula to prevent compression on the blood vessels.

[0029] Furthermore, the C-shaped restraining groove 1121 is provided with ventilation holes to prevent the restrained upper limb on the internal fistula side from becoming stuffy and itchy, causing discomfort to the patient.

[0030] Furthermore, the C-shaped restraint groove 1121 is a transparent member. In this embodiment, the coverage of the treatment towel can be changed by adjusting the position of the clamping claw 132 on the C-shaped slide rail 131, so that after the alarm is triggered, the bleeding site can be observed through the C-shaped restraint groove 1121 without opening the arteriovenous fistula restraint protection device 10.

[0031] For further information, see Figure 6 The restraint protection mechanism 11 also includes an airway 113, a valve 114 and a hand-pinch airbag 115; the valve 114 is fixedly installed on the C-shaped restraint groove 1121 of the lower C-shaped restraint component 112, one end of the valve 114 is connected to the elastic inflatable airbag 1123, and the other end is connected to the hand-pinch airbag 115 through the airway 113, so that the elastic inflatable airbag 1123 is inflated by the hand-pinch airbag 115 to restrain and protect the upper limb on the fistula side; in this embodiment, whether to inflate the elastic inflatable airbag 1123 is controlled by the valve 114, the valve 114 is opened, and the medical staff or the patient manually presses the hand-pinch airbag 115 to inflate the elastic inflatable airbag 1123; the valve 114 is closed, the elastic inflatable airbag 1123 is sealed, the hand-pinch airbag 115 and the airway 113 are connected to the outside world, and the patient can exercise his hands through the hand-pinch airbag 115 to facilitate the recovery of limb function.

[0032] For further information, see Figure 7The treatment towel extraction mechanism 13 includes a C-shaped slide rail 131 and a clamp 132; the C-shaped slide rail 131 is fixedly installed at both ends of the C-shaped constraint groove 1121, and the axes of the two are on the same straight line; the clamp 132 is slidably installed on the C-shaped slide rail 131, and the clamp 132 faces the inner side of the C-shaped constraint groove 1121 to clamp the treatment towel and extract the treatment towel from the treatment towel storage mechanism 12.

[0033] For further information, see Figure 8 The arteriovenous fistula restraint and protection device 10 also includes an angle adjustment mechanism 14, which is fixedly installed under the treatment towel storage mechanism, including a base plate 141 and an angle adjustment plate 142; the base plate 141 is a rectangular plate, and a row of limiting teeth are arranged on the plate; one end of the treatment towel storage mechanism 12 is hinged to the base plate 141, and the other end is hinged to one end of the angle adjustment plate 142; the other end of the angle adjustment plate 142 can be stuck on the limiting teeth of the base plate to adjust the angle between the arteriovenous fistula restraint and protection device 10 and the bed surface; in this embodiment, adjusting the angle between the upper limb on the fistula side restrained and protected by the arteriovenous fistula fixing device 10 and the bed surface can not only facilitate lifting the upper limb on the fistula side according to the needs of the patient, but also help to reduce postoperative edema and promote the maturation of the fistula.

[0034] Furthermore, the alarm component includes a warning light and a buzzer, which are used to send out light signals and sound signals for alarm.

[0035] When the utility model is implemented, the medical staff needs to first observe the position of the patient's internal fistula blood vessels, and adjust the position of the elastic inflatable airbag 1123 on the restraint protection mechanism 11, so that the elastic inflatable airbag 1123 avoids the internal fistula blood vessels to prevent the internal fistula blood vessels from being compressed. After the position adjustment is completed, the treatment towel is partially withdrawn from the treatment towel storage mechanism 12, and the two ends of the treatment towel are clamped by the clamping claws 132, and the clamping claws 132 are moved along the C-shaped slide rail 131 at the same time, so that the clamping claws 132 pull the treatment towel and lay the treatment towel in the lower C-shaped restraint protection component 112. After that, the medical staff properly places the patient's internal fistula-side upper limb in the lower C-shaped restraint protection component 112, and fixes the induction component 151 at the wound site, and the hand faces the hand to pinch the airbag 115. After the placement is completed, the upper C-shaped restraint protection component 111 is closed, and the fur surface and the thorn surface of the Velcro cooperate to connect the upper C-shaped restraint component 111 and the lower C-shaped restraint component 112, and make them tightly closed. Afterwards, continue to move the clamping jaw 132 along the C-type slide rail 131 that is installed on the upper C-type constraint assembly 111, make the clamping jaw 132 pull the treatment towel, and the treatment towel is covered on the fistula side upper limb.Afterwards, open valve 114, manually press the hand of medical staff or patient and pinch the air bag 115, inflate in the elastic inflatable air bag 1123, to restrain and protect the fistula side upper limb, close valve 114 after inflation, and make the elastic inflatable air bag 1123 tightly closed.At this moment, the hand pinches the air bag 115 and is communicated with the outside world through the airway 113, and the patient can exercise the hand by pinching the air bag 115, and is convenient to recover the limb function.After the restraint protection of the fistula side upper limb is completed, the medical staff can also adjust the angle of the fistula side upper limb and the bed surface of the arteriovenous fistula fixture 10 restraint protection as required, which is beneficial to alleviate postoperative edema and promotes fistula maturation. When the control component 152 detects bleeding in the upper limb wound on the internal fistula side through the sensing component 151, it controls the sound component 155 and the light emitting component 154 to emit sound and light signals to alarm the medical staff so that the medical staff can discover and deal with it in time.

[0036] The modules or units in the device of the embodiment of the utility model can be combined, divided and deleted according to actual needs. The above disclosure is only the preferred embodiment of the utility model, and of course it cannot be used to limit the scope of the rights of the utility model. Ordinary technicians in this field can understand that all or part of the processes of the above embodiments are implemented, and equivalent changes made according to the claims of the utility model still fall within the scope of the utility model.

Claims

1. An arteriovenous fistula restraint protection device, characterized in that: include: A restraint and protection mechanism, a treatment towel storage mechanism, a treatment towel extraction mechanism and a blood detection alarm mechanism; the restraint and protection mechanism comprises an upper C-type restraint component and a lower C-type restraint component, both of which have the same structure and size, one side of the upper C-type restraint component and the lower C-type restraint component are connected by a hinge, and the other side is fastened by a fastening belt to restrain and protect the upper limb on the fistula side; the treatment towel extraction mechanism is fixed at both ends of the lower C-type restraint component; the treatment towel storage mechanism is fixedly installed at the bottom of the lower C-type restraint component for storing the treatment towel, and an opening is provided on the treatment towel storage mechanism for the treatment towel extraction mechanism to extract the treatment towel; the blood detection alarm mechanism is fixedly installed on the lower C-type restraint component, and comprises a sensing component, a control component, a power supply component and an alarm component; the sensing component is a flexible sensing sheet, which is electrically connected to the control component to be fixed on the wound site to detect whether the wound is bleeding; the control component is also electrically connected to the power supply component and the alarm component, the power supply component supplies power to the blood detection alarm mechanism, and the control component acts on the sensing component to control the alarm component to alarm when the wound bleeding is detected.

2. According to the arteriovenous fistula restraint protection device of claim 1, its characteristics are: the lower C-type restraint component includes a C-type restraint groove, a movable airbag groove and an elastic inflatable airbag; the elastic inflatable airbag is fixedly installed in the movable airbag groove; three groups of C-type slide grooves are equidistantly arranged on the inner side of the C-type restraint groove to slide the movable airbag groove, a hinge is provided on one side of the C-type restraint groove to hinge the upper C-type restraint component and the lower C-type restraint component, and a restraint groove fastening belt is provided on the other side to close and fasten the hinged upper C-type restraint component and the lower C-type restraint component; the therapeutic towel storage mechanism is fixedly installed below the C-type restraint groove of the lower C-type restraint component.

3. According to the arteriovenous fistula restraint protection device of claim 2, its characteristic is that: the C-shaped restraint groove is provided with a ventilation hole.

4. The arteriovenous fistula restraint protection device according to claim 2, wherein the C-shaped restraint groove is a transparent part.

5. According to the arteriovenous fistula restraint and protection device of claim 2, its characteristics are: the restraint and protection mechanism also includes an airway, a valve and a hand-pinch airbag; the valve is fixedly mounted on the C-shaped restraint groove of the lower C-shaped restraint assembly, one end of the valve is connected to the elastic inflatable airbag, and the other end is connected to the hand-pinch airbag through the airway, so that air can be inflated into the elastic inflatable airbag through the hand-pinch airbag, thereby restraining and protecting the upper limb on the fistula side.

6. The arteriovenous fistula restraint protection device according to claim 2, characterized in that: The treatment towel extraction mechanism includes a C-shaped slide rail and a clamp; the C-shaped slide rail is fixedly installed at both ends of the C-shaped constraint groove, and the axes of the two are in the same straight line; the clamp is slidably installed on the C-shaped slide rail, and the clamp faces the inner side of the C-shaped constraint groove to clamp the treatment towel and extract the treatment towel from the treatment towel storage mechanism.

7. The arteriovenous fistula restraint protection device according to claim 1, characterized in that: The arteriovenous fistula restraint protection device also includes an angle adjustment mechanism, which is fixedly installed below the treatment towel storage mechanism, and includes a base plate and an angle adjustment plate; the base plate is a rectangular plate, on which a row of limiting teeth are arranged; one end of the treatment towel storage mechanism is hinged to the base plate, and the other end is hinged to one end of the angle adjustment plate; the other end of the angle adjustment plate can be clamped on the limiting teeth of the base plate to adjust the angle between the arteriovenous fistula restraint protection device and the bed surface.

8. The arteriovenous fistula restraint protection device according to claim 1, characterized in that: The alarm component includes a warning light and a buzzer, which are used to send out light signal and sound signal alarm.

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