CN211382015U

CN211382015U - Waterproof protection device for arteriovenous internal fistula

Info

Publication number: CN211382015U
Application number: CN201922211827.8U
Authority: CN
Inventors: 黄翠婷; 农彩梅; 薛毅; 吴美林; 韦月媚; 林梦蕾
Original assignee: Youjiang Medical University for Nationalities Affiliated Hospital
Current assignee: Youjiang Medical University for Nationalities Affiliated Hospital
Priority date: 2019-12-11
Filing date: 2019-12-11
Publication date: 2020-09-01
Anticipated expiration: 2029-12-11

Abstract

The utility model discloses a waterproof protection device for arteriovenous internal fistula, which comprises a transparent sleeve, a first pad body and a second pad body, wherein one end of the transparent sleeve is provided with an opening, the other end of the transparent sleeve is a gripping end for wrapping the limbs of a patient, a tightening part is arranged on the outer wall of the transparent sleeve and is far away from the gripping end of the transparent sleeve, the first pad body and the second pad body are sequentially installed in the transparent sleeve at intervals from top to bottom, and the first pad body is close to the opening end of the transparent sleeve; the first cushion body and the second cushion body are both soft annular cushion bodies. The utility model discloses hand/foot penetrate and stretch into the gripping end in the transparent sleeve from the open end when using, again with the elasticity straining can, when the patient when washing one's hand or shower, transparent sleeve cladding patient limbs, first pad body and second pad body can adsorb water droplet or sweat, on the one hand can play the effect of protection internal fistula department. The device can effectively prevent the internal fistula from being wetted, and is convenient for cleaning the postoperative patients.

Description

Waterproof protection device for arteriovenous internal fistula

Technical Field

The utility model relates to a medical auxiliary article, in particular to a waterproof protection device for arteriovenous internal fistula.

Background

Most of patients with hemodialysis in the nephrology department need to perform an arm arteriovenous internal fistula operation, and after the internal fistula is formed, the patients puncture from the part to perform hemodialysis treatment. After the fistulization operation is carried out, the fistulization part is prevented from being pressed, particularly in two weeks after the operation, so that the blood flow is prevented from being suddenly reduced, and the service life of the internal fistula is shortened after the internal fistula is blocked. Therefore, how to effectively protect the blood vessel and care the fistulization part is also a great concern for hemodialysis patients and doctors.

In order to solve the technical problems, arteriovenous internal fistula protection devices with respective structures appear on the market at present, for example, Chinese patent application with the application number of CN201710267932.6 discloses an adjustable arteriovenous internal fistula protector which comprises an angle adjusting support device and an internal fistula protection sleeve, wherein the angle adjusting support device comprises a base, a support plate and a support plate, one end of the support plate is hinged with one end of the base, one end of the support plate is hinged with the other end of the base, the support plate can support the bottom surface of the support plate through the free end of the support plate, the internal fistula protection sleeve comprises a U-shaped bracket, a hollowed-out mesh cloth is fixedly arranged at a notch above the U-shaped bracket, a zipper for opening and closing the hollowed-out mesh cloth is arranged in the middle of the hollowed-out mesh cloth, and magic tapes are respectively arranged on the upper surface of the support plate and the lower end of the U-shaped bracket. The internal fistula protecting device with the structure can adjust the angle; the patient can be hung on the chest to protect the operative limb when standing out of bed, but the protective device has no waterproof function, and the internal fistula is very easy to be wetted when the patient washes hands or takes a shower, thereby causing infection and influencing the recovery of the patient.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the above problems, the invention provides a waterproof protection device for arteriovenous internal fistula, which can protect limbs of a patient after the arteriovenous internal fistula operation, and can effectively prevent the internal fistula from getting wet when the patient washes hands or takes a shower, and is convenient to use.

In order to achieve the above purpose, the utility model adopts the technical proposal that:

the waterproof protection device for the arteriovenous fistula comprises a transparent sleeve, a first pad body and a second pad body, wherein one end of the transparent sleeve is an open end with an opening, the other end of the transparent sleeve is a gripping end for covering the limb of a patient, a loosening piece is arranged on the outer wall of the transparent sleeve and is far away from the gripping end of the transparent sleeve, the first pad body and the second pad body are sequentially installed in the transparent sleeve at intervals from top to bottom, and the first pad body is close to the open end of the transparent sleeve; the first cushion body and the second cushion body are both soft annular cushion bodies.

In the above scheme, in order to monitor the blood flow condition at the internal fistula in real time, the waterproof protection device for arteriovenous internal fistula further comprises a blood flow monitoring component, and the blood flow monitoring component is installed on the transparent sleeve.

In the above-mentioned scheme, further preferably, blood flow monitoring subassembly includes magnetic core, coil and installs the control unit on transparent telescopic outer wall, the magnetic core is installed on transparent telescopic inner wall, the coil twines in the surface of magnetic core, the control unit includes signal induction line, preamplification circuit, power, processing circuit and alarm, set up on patient's limbs after one end of signal induction line runs through one side of magnetic core, the other end of signal induction line with preamplification circuit's input is connected, preamplification circuit's output is connected with processing circuit's input, processing circuit's output is connected with the alarm, the power is respectively for preamplification circuit and processing circuit power supply.

In the above scheme, the arteriovenous internal fistula water proof protection device is still including the temperature sensor who is used for early warning ambient temperature, temperature sensor is connected with an pilot lamp, temperature sensor and pilot lamp are all fixed in on the outer wall of transparent sleeve.

In the above scheme, for preventing the condition of skidding appearing in the use, the outer wall surface distribution of the gripping end of transparent sleeve has a plurality of friction particles, each friction particle with transparent sleeve integrated into one piece.

In the above aspect, as a preferred embodiment, the first cushion body and the second cushion body are both annular sponge bodies.

In the above scheme, arteriovenous internal fistula water proof protection device still can include the elasticity piece, the elasticity piece is the bandage or the magic subsides of mating use.

In the scheme, the arteriovenous internal fistula waterproof protection device further comprises a sealing rope and a plurality of through holes, wherein the through holes are sequentially distributed at intervals along the circumferential direction of the transparent sleeve, and the through holes are close to the opening end; one end of the sealing rope is connected with an elastic buckle, and the other end of the sealing rope is of a wave structure and penetrates through the through holes in sequence and then is movably connected to the elastic buckle.

Due to the adoption of the technical scheme, the utility model discloses following beneficial effect has:

1. the utility model discloses mainly constitute by transparent sleeve, the first pad body, the second pad body and elasticity piece, transparent sleeve is applicable to the protection of hand limbs or foot limbs, during the use correspond according to internal fistula position select can, hand/foot penetrate and stretch into the gripping end in the transparent sleeve from the open end during use, again with the elasticity piece straining can, when the patient is when washing one's hand or shower, transparent sleeve cladding patient limbs, the first pad body and the second pad body can adsorb water droplet or sweat, on the one hand can play the effect of protection internal fistula department. The device can effectively prevent the internal fistula from being wetted, and is convenient for cleaning the postoperative patients.

2. The utility model discloses the blood flow monitoring subassembly that sets up mainly includes magnetic core, coil and the control unit constitution, can the blood flow condition of real-time supervision internal fistula department, and can in time send the warning when the blood flow surpasss the safe value of settlement, reminds people to make quick processing, and the healing condition of internal fistula department obtains effectual control.

3. The utility model discloses a still be equipped with the friction granule that temperature-sensing ware and prevent to skid on the transparent sleeve, simple structure, the function is various, can maximize satisfy patient's operation requirement.

Drawings

Fig. 1 is a schematic view of the utility model of a waterproof protection device for arteriovenous internal fistula.

Fig. 2 is a schematic view of the internal structure of the arteriovenous internal fistula waterproof protective device in fig. 1.

Fig. 3 is a schematic diagram of an electrical connection structure of the blood flow detection assembly.

The reference numbers in the figures are: 1-transparent sleeve, 2-loose piece, 3-friction particle, 4-open end, 5-first pad, 6-magnetic core, 7-second pad, 8-temperature sensor, 9-sealing rope, 10-control unit, 11-coil, 12-limb of patient.

Detailed Description

The following description of the embodiments of the present invention will be made with reference to the accompanying drawings and examples, but the present invention is not limited thereto.

As shown in fig. 1, fig. 2 and fig. 3, the utility model discloses a waterproof protection device for arteriovenous internal fistula, which comprises a transparent sleeve 1, a first pad body 5, a second pad body 7 and an elastic member 2. One end of the transparent sleeve 1 is an open end 4 provided with an opening, and the other end of the transparent sleeve 1 is a gripping end for covering the limb 12 of the patient, in this embodiment, the transparent sleeve 1 is specifically a transparent plastic sleeve. According to different positions of internal fistula of a human body, the protection device is suitable for limbs of hands or feet. As shown in the drawings, the transparent sleeve 1 of the present embodiment is particularly applied to the hand limb. The tightening piece 2 is arranged on the outer wall of the transparent sleeve 1 and away from the gripping end of the transparent sleeve 1. The fastening piece 2 is used for fixing the open end 4 of the transparent sleeve 1, and specifically can be a binding band or a magic tape used in a matching way. The first cushion body 5 and the second cushion body 7 are sequentially installed in the transparent sleeve 1 from top to bottom at intervals, and the first cushion body 5 is close to the opening end 4 of the transparent sleeve 1. The first cushion body 5 and the second cushion body 7 are both soft annular cushion bodies. In this embodiment, the first pad 5 and the second pad 7 are both ring-shaped sponges, and may be cotton pads or the like. The first pad 5 is detachably mounted in the transparent sleeve 1, and is clamped, and the outer diameter of the first pad 5 is designed to be slightly larger than the inner diameter of the transparent sleeve 1. The inner diameter of the second pad 7 should be smaller than the inner diameter of the transparent sleeve 1, and the second pad can be mounted on the inner wall of the transparent sleeve 1 by double-sided adhesive bonding, sewing with needle and thread, hot melting, and the like.

In order to prevent the slipping condition in the using process, a plurality of friction particles are distributed on the surface of the outer wall of the gripping end of the transparent sleeve 1, and each friction particle 3 and the transparent sleeve 1 are integrally formed. Namely, the friction particles 3 are plastic protrusions poured on the surface of the transparent sleeve 1.

The waterproof protection device for the arteriovenous internal fistula further comprises a sealing rope 9 and a plurality of through holes. The through holes are distributed at intervals in sequence along the circumferential direction of the transparent sleeve 1, and the through holes are close to the opening end 4. The sealing rope 9 is used for retracting and sealing the open end 4 of the transparent sleeve 1 when in use, so as to play a role of further preventing water. One end of the sealing rope 9 is connected with an elastic buckle, and the other end of the sealing rope 9 is of a wave structure and is movably connected to the elastic buckle after penetrating through the through holes in sequence.

The arteriovenous internal fistula waterproof protection device also comprises a blood flow monitoring assembly and a temperature sensor 8 for early warning the ambient temperature. The temperature sensor 8 is connected with an indicator light, the temperature sensor 8 and the indicator light are both fixed on the outer wall of the transparent sleeve 1, and the temperature sensor 8 can be a thermistor specifically. The blood flow monitoring assembly is arranged on the transparent sleeve 1 and used for monitoring the blood flow condition at the internal fistula in real time.

As shown in fig. 3, the blood flow monitoring assembly comprises a magnetic core 6, a coil 11 and a control unit 10 mounted on the outer wall of the transparent sleeve 1. The magnetic core 6 is arranged on the inner wall of the transparent sleeve 1 and can be fixed on the inner wall of the transparent sleeve 1 through steel wires and silk threads. The coil 11 is wound on the surface of the magnetic core 6. The control unit 10 comprises a signal sensing wire, a pre-amplification circuit, a power supply V0, a processing circuit and an alarm. One end of the signal induction wire penetrates into one side of the magnetic core 6 and then is arranged on the limb 12 of the patient, and the other end of the signal induction wire is connected with the input end of the pre-amplification circuit. The output end of the pre-amplification circuit is connected with the input end of the processing circuit, and in the embodiment, the pre-amplification circuit mainly comprises an operational amplifier A, a triode Q1 and a triode Q2. The output end of the processing circuit is connected with an alarm, and the power supply respectively supplies power to the pre-amplification circuit and the processing circuit. The processing circuit is composed of an existing signal rectifying circuit and a comparison and judgment circuit, and the alarm can be a buzzer. The power supply V0 is a button cell. The pre-amplification circuit, the processing circuit and the alarm can be integrated on the same PCB so as to realize the minimum setting of the control unit 10.

When the blood flow monitoring assembly works, the blood flow direction of a blood vessel for internal fistula operation is perpendicular to the magnetic field generated by the magnetic core 6, because blood is an alkaline electric conductor and moves at a uniform speed, magnetic lines of force are cut in a constant magnetic field to induce electromotive force, then the blood flow is obtained according to the voltage value output by the sensor and the cross section area of the blood vessel, the processing circuit judges whether the blood flow exceeds a safety limit value or not according to the obtained bleeding flow, if so, the alarm gives an alarm, otherwise, the alarm does not give an alarm.

The above description is for the detailed description of the preferred possible embodiments of the present invention, but the embodiments are not intended to limit the scope of the present invention, and all equivalent changes or modifications accomplished under the technical spirit suggested by the present invention should fall within the scope of the present invention.

Claims

1. Waterproof protection device of arteriovenous internal fistula, its characterized in that: the patient limb nursing cushion comprises a transparent sleeve, a loosening piece, a first cushion body and a second cushion body, wherein one end of the transparent sleeve is an open end with an opening, the other end of the transparent sleeve is a gripping end used for covering a limb of a patient, the loosening piece is arranged on the outer wall of the transparent sleeve and is far away from the gripping end of the transparent sleeve, the first cushion body and the second cushion body are sequentially installed in the transparent sleeve at intervals from top to bottom, and the first cushion body is close to the open end of the transparent sleeve; the first cushion body and the second cushion body are both soft annular cushion bodies.

2. The arteriovenous internal fistula waterproof protective device according to claim 1, characterized in that: also included is a blood flow monitoring assembly mounted on the transparent sleeve.

3. The arteriovenous internal fistula waterproof protective device according to claim 2, characterized in that: blood flow monitoring subassembly includes magnetic core, coil and installs the control unit on transparent telescopic outer wall, the magnetic core is installed on transparent telescopic inner wall, the coil twines on the surface of magnetic core, control unit includes signal induction line, preamplifier circuit, power, processing circuit and alarm, set up on patient's limbs after one end of signal induction line runs through one side of magnetic core, the other end of signal induction line with preamplifier circuit's input is connected, preamplifier circuit's output and processing circuit's input are connected, processing circuit's output and alarm are connected, the power is respectively preamplifier circuit and processing circuit power supply.

4. The arteriovenous internal fistula waterproof protective device according to claim 1 or 2, characterized in that: still including the temperature sensor who is used for early warning ambient temperature, temperature sensor is connected with an pilot lamp, temperature sensor and pilot lamp all are fixed in on transparent telescopic outer wall.

5. The arteriovenous internal fistula waterproof protective device according to claim 1, characterized in that: a plurality of friction particles are distributed on the surface of the outer wall of the gripping end of the transparent sleeve, and each friction particle and the transparent sleeve are integrally formed.

6. The arteriovenous internal fistula waterproof protective device according to claim 1, characterized in that: the first cushion body and the second cushion body are both annular sponge bodies.

7. The arteriovenous internal fistula waterproof protective device according to claim 1, characterized in that: still include the elasticity piece, the elasticity piece is the magic subsides of bandage or mating use.

8. The arteriovenous internal fistula waterproof protective device according to claim 1, characterized in that: the sealing device also comprises a sealing rope and a plurality of through holes, wherein the through holes are sequentially distributed at intervals along the circumferential direction of the transparent sleeve, and the through holes are close to the opening end; one end of the sealing rope is connected with an elastic buckle, and the other end of the sealing rope is of a wave structure and penetrates through the through holes in sequence and then is movably connected to the elastic buckle.