WO2024079536A1

WO2024079536A1 - Cuff for sphygmomanometers

Info

Publication number: WO2024079536A1
Application number: PCT/IB2023/054500
Authority: WO
Inventors: Farrokh FARAHMAND; Bahar FARAHMAND
Original assignee: Farahmand Farrokh; Farahmand Bahar
Priority date: 2022-10-12
Filing date: 2023-04-30
Publication date: 2024-04-18

Abstract

This cuff is a sphygmomanometer device without a bag, with one or more tubes i.e., it is a type of cuff for use in a blood pressure measuring device. The sphygmomanometer is used to measure one of the vital signs of humans and animals, which is the level of blood pressure in the vein. The cuff or airbag of the available sphygmomanometers is made of natural latex and placed inside a sewn fabric bag. This airbag is wrapped around the arm and on the artery and by pumping air inside it, the blood pressure of the person is determined. The cuff of the pressure measuring device claimed in this invention does not need a sewn fabric bag and it is one piece. The purpose of designing and manufacturing this type of sphygmomanometers cuff is to reduce its price and its disposable ability and to personalize it for each patient.

Description

cuff for sphygmomanometers

[0001] A cuff for home sphygmomanometers without the airbag, with one or more tubes is an application filed and provided based on a local Application, at IRAN'S Islamic Republic of Iran Intellectual Property Center No. 140150140003005667 dated on October 12, 2022.

Technical Field

[0002] This invention, a sphygmomanometer cuff, is a one-piece, hygienic, for home use, and dedicated to each patient. This invention is in the field of devices for measuring the vital signs of humans and animals. For this reason, it is related to physics and mechanics.

Background Art

[0003] A sphygmomanometer is a device used to measure the blood pressure of humans and animals. The accessories of this device are as follows:

[0004] Cuff, pump, tubes, and graduated plate.

[0005] Mercury sphygmomanometers: This type of standard sphygmomanometer is known as one of the most important sphygmomanometers. In these devices, there is a mercury column like a thermometer that shows blood pressure. The probability of error in this type of device is very low. The mercury column is the only thing that moves in the tin device. Attention should be paid to the numbers on both sides of the mercury column when reading the pressure. However, the use of mercury sphygmomanometers is decreasing, because mercury is a toxic substance and can pollute the environment.

[0006] Dial sphygmomanometer: Some sphygmomanometers have dials. A sphygmomanometer with a dial is a spring-loaded device that uses air pressure to move a needle on the dial. Each degree on its dial represents one millimeter of mercury. This type of sphygmomanometer is cheaper and easier to carry than the mercury type.

[0007] Digital sphygmomanometer: Digital sphygmomanometers are divided into both wrist and arm models. In terms of accuracy, arm sphygmomanometers are a better option. Since digital and automated sphygmomanometers rarely miscalculate, it is always preferable to use a mercury sphygmomanometer. The use of digital devices is recommended only for patients who are not able to use these standard devices.

[0008] The cuff is one of the components of the sphygmomanometer device that is wrapped around the upper arm and inflated to stop the flow of blood in the artery for a short time so that the device can measure blood pressure. The cuff is usually the first member of the sphygmomanometer to wear out and a new type is used as a spare. This cuff is for a single-hand one-tube sphygmomanometer and is suitable for arm sizes from 22 to 48 cm. Also, this cuff is suitable for those whose arm diameter is larger than normal size. This cuff can be installed on all digital sphygmomanometers.

[0009] Items similar to the claimed invention:

[0010] The difference between this cuff and the cuffs available in the market: (the cuff or airbag) the cuffs are two pieces and they are made of natural latex. The manufacturing and production process of cuffs is also expensive and it is necessary to put the cuff in the second part of them - which is a sewn fabric bag. However, this cuff is made by a two-person team, never needing a bag sewn from fabric. In the production process, it is never made of latex and it is a one- piece cuff that is easily wrapped around the patient's arm. It is made of thick metalized foil. It is only necessary to decide on its size, which must be a standard size and also, must be designed and produced in three sizes: adult, child, and infant. It is worth noting that the material prepared from the raw materials for the production of cuffs is a thick roll of metalized foil, which is used with thicknesses above microns, but in the foreign materials applied to produce cuffs, latex materials are used and there is no guarantee about Its hygiene. There is always a risk that these days, a disease such as Covid-19 can be transmitted from one patient to another due to the infected bodies. But, with the availability of this cheap home cuff, patients will probably decide to buy and the need for this cuff for hospitalized patients is not less than the need to buy gowns (patient clothes).

Summary of Invention

[0011 ] The availability of sphygmomanometers is necessary for all medical centers such as hospitals, clinics, doctor's offices, and neighborhood health centers. In addition, in some homes, a sphygmomanometer is considered a necessary device for family members. Also, unfortunately, the price of this device is usually not affordable, and its components, especially the cuff, are easily damaged after several uses, they often need to be repaired and replaced. More importantly, the touching of different people and patients with the cuff causes contamination and disease transmission, but due to the high price of the cuff, it is not possible to change the cuff every time or assign a disposable cuff to each patient. Therefore, by changing the structure and mechanism of the existing cuffs, a new type of cuff was invented, designed, and manufactured, which eliminates the above- mentioned disadvantages. The cuff of the home sphygmomanometer without a bag has one or more tubes, a one-piece and hygienic armband, and no latex airbag. This cuff is basically a type of home sphygmomanometer cuff without a airbag, it has one or more tubes, a one-piece and hygienic armband, and no latex airbag. Due to the reasonable price of this product, it can be used by every person at home and also, it can be among the personal belongings of every patient. This cuff can be connected to all sphygmomanometer devices and it can also be made for all people, in different sizes.

Technical Problem

[0012] however, the sphygmomanometer is an extremely sensitive and vital device. Sphygmomanometer is a necessary and strategic device for people with high blood pressure or low blood pressure, as well as for any type of examination by doctors and nurses, or even for ordinary people. The important task of this device is used for a correct diagnosis of patients' diseases. Recently, sphygmomanometer cuffs or airbags are made of natural latex. Most of these cuffs are produced abroad, this vital device, (cuff) simply needs to be placed inside a sewn-in cloth bag that wraps around the arm and over the artery. By inflating the cuff, an initial step is taken to detect blood pressure. The gauge with a millimeter of mercury scale will accurately show the upper (systolic) and lower (diastolic) pressure. Many people refuse to buy home sphygmomanometer measuring devices due to reasons such as the failure of the cuff, armband, and its high price. The embargo situation has aggravated this and because people cannot buy this imported part to rebuild and repair the pressure gauge. Also, the cuff of the sphygmomanometer is commonly used by nurses and doctors for all patients, which causes the transmission of viruses and germs to others. This cuff, which is closed on the artery, may be exactly the same part where the needle or serum was injected, and this causes the cuff to be contaminated with blood or mucus. In this way, the infected cuff causes the same disease to be transmitted to other patients.

Solution to Problem

[0013] This cuff claimed in this invention does not need a sewn fabric bag and is one piece and wrapped around the patient's arm. This cuff works exactly like the armband is made of latex and is placed in a fabric bag. The difference is that often only one latex cuff is commonly used in hospitals, clinics, offices, and all health centers for all patients. We remind you that the cuff that is placed on the sphygmomanometer is all latex type and must be placed in a sewn bag in order to measure the blood pressure. However, this patented cuff is extremely cheap and can be purchased in hospitals before hospitalization, at the hospital pharmacy, or at drugstores just like buying "grown" (clothes for patients) for a patient.

Advantageous Effects of Invention

[0014] The price is very reasonable

[0015] Increased cuff quality

[0016] The possibility of using it personally

[0017] Preventing the transmission of pathogens and contamination from one person to another

[0018] Reduced price of this sphygmomanometer

[0019] The possibility of producing it in different colors

[0020] Washable

[0021] Durable

[0022] Lightness

Brief Description of Drawings

Fig.1 [0023] [Fig.1 ] without airbag (Bagless) home sphygmomanometer cuff with one or more tubes

Description of Embodiments

[0024] (According to Fig.1 ) The cuff of the home blood pressure measuring device consists of 1 . air inlet and outlet tubes, 2. airbag, 3. additional part, and 4. adhesive zipper, which is connected to each other by thermal stitching. The air inlet and outlet tubes can be one or more pieces or considered for separate inlet and outlet. If it is necessary to measure a person's blood pressure in medical centers, by carrying this cuff or preparing a disposable type of it, in the hospital and by connecting it to the existing sphygmomanometer device, then measure the blood pressure and in this way, it prevents the transmission of pathogenic agents or contamination, which also increases the accuracy of the device.

[0025] The cuff of the home sphygmomanometer is one piece and includes the following items:

[0026] Air inlet and outlet tubes inserted into the airbag,

[0027] An air bag with specific dimensions made of aluminum foil or metalized, which is manufactured by thermal stitching,

[0028] An additional part with specific dimensions made of aluminum foil or metalized, which is manufactured by thermal stitching,

[0029] and 4. Adhesive zipper with specific dimensions made of aluminum foil, which has male and female adhesive on both sides, for wrapping around the arm.

[0030] In the production of this cuff, the size must be according to the thermal sewing standard. This is sewn by a rectangular mold, exactly to the desired size, by electric current and the element embedded in it, all around the cuff and its components (according to No.1 ). The adhesive zipper is placed in the designated part of the male and female connection, and then thermal stitching is sewn. The Tube installed on the cuff has a specified width and length and has a tee that is in a certain part of the outer tube. Also, a tube, with the same diameter and a specific length, is connected to the third part of the tee, for the air inlet and outlet and placement of the air inlet and outlet pump. After the formation of the airbag, a maximum specified amount of tube length is inserted into the airbag at the right to be fixed with heat and special glue in the desired place.

Examples

[0031 ] The cuff of the home sphygmomanometer for adults in standard dimensions, for example, 14 x 50 cm, is a one-piece that includes the following items:

[0032] Air inlet and outlet tubs inserted into the airbag,

[0033] Airbag with dimensions of 22 x 14 cm, made of aluminum foil or metalized, which is produced by thermal stitching.

[0034] An additional part with dimensions of 14 x 14 cm, made of aluminum foil or metalized, which is produced by thermal stitching, and

[0035] The adhesive zipper with dimensions of 14 x 14 cm is made of aluminum foil on both sides, with male and female adhesive, to wrap around the arm.

[0036] The cuff of the home sphygmomanometer used for children, in standard dimensions, for example, 9.5 x 37 cm, is a one-piece that has an airbag in dimensions of 9.5 x 18 cm, and for babies in standard dimensions, for example, 27 x 5.5 cm, is a one-piece that has an airbag in dimensions of 5.5 x 13 cm. In the production of this cuff, the size must be according to the thermal sewing standard. This is sewn by a rectangular mold, exactly to the desired size, by electric current and the element embedded in it, all around the cuff and its components (according to No.1 ). That is, it should be sewn to a width of 1 centimeter, and it is thermally sewn in a certain part of the male and female adhesive connection. The tube installed on the cuff has an outer diameter of 8 mm and an inner diameter of 5 mm, in a length of 60 cm, which has a tee that is in the 40 cm part of the outer tube. Also, a tube of the same diameter and length of 30 cm is connected to the third part of the tee for the air inlet and outlet and the placement of the air inlet and outlet pump. Considering that the tube is made of PVC, its outer diameter is 8 mm (+-0.2 mm) and its inner diameter is 5 mm. After forming the airbag, a maximum of 9 cm (this amount is 7 cm for children's cuffs and 3 cm for babies) of the length of the tubes is inserted into the airbag at the right end to be fixed in the desired place with heating and special glue.

Industrial Applicability [0037] Pressure is a measure of the force that the blood exerts against the vessel walls as it moves the blood through the vessels. When the heart beats, the blood pressure increases, which is called the maximum blood pressure (systolic), while when the heart is not beating, the blood pressure decreases, which is called the minimum blood pressure (diastolic). A balanced systolic pressure between (100- 200 mmHg) and a balanced diastolic pressure of 60-80 mmHg can be expected from a healthy person. Blood pressure varies among people due to factors such as age, gender, behavioral characteristics, weight, physical structure, genetics, anxiety, and fatigue. Only your doctor is qualified to interpret your blood pressure readings. However, by producing this cuff in one piece and without fabric, which is also called an armband, the patient can easily wrap this piece around his arm. The best way is to wrap it around the left arm because the left arm is close to the heart. At first, when measuring pressure, it is better to place the left hand on a table or a flat surface. The armband should be placed in line with the heart and also the cuff (airbag) between the shoulder and elbow. The cuff has a doublesided male adhesive and it should be wrapped around the arm, neither too tight nor too loose. On the other hand, it should be wrapped to a degree that the elbow can be bent a little and straightened a little. It should be wrapped about the size of 2 free knuckles. The best place to wrap this cuff is the end part of the artery. In this case, this bag is inflated by pumping the device, it should be inflated to such an extent that the sound of the heartbeat cannot be heard in the earpiece of sphygmomanometer. It means about 180-200 mmHg and then the valve of the blood pressure pump should be loosened so that the rate of air discharge slowly goes out of 2-4 mmHg per second and the sound of heartbeat ( lup-dup) starts to be heard a little by little. The first heartbeat heard by the blood pressure monitor is the high or systolic pressure, and when the sound stops, it is the low or diastolic pressure. In addition, this cuff will be produced in three sizes for adults, children, and babies, so it has three similar designs and three different sizes.

Reference Signs List

[0038] 101 . Air inlet and outlet tubes

[0039] 102. Airbag

[0040] 103. Additional parts [0041] 104. Adhesive zipper

[0042] 105. Thermal sewing

Claims

[Claim 1] The cuff of the home sphygmomanometer without a bag and with one or more tubes is a one-piece blood pressure cuff. It does not have an air bag made of latex, so it can be used for personal use, and it can also be a part of the personal belongings of each patient. This cuff can be connected to all blood pressure measuring devices and can be made for all people in different sizes. The cuff of the home blood pressure measuring device consists of: 1 . Air inlet and outlet tubes 2. Airbag 3. Additional parts 4. Adhesive zippers are formed, which are connected to each other by thermal stitching.

[Claim 2] According to claim No.1 , the air inlet and outlet tubes can be one or more pieces or they can be separate for inlet and outlet.

[Claim 3] According to claim No.1 , this cuff consists of: 1 . Air inlet and outlet tubes inserted into the airbag, 2. An airbag with specific dimensions made of aluminum foil or metalized, which is manufactured by thermal stitching, 3. An additional part with specific dimensions made of aluminum foil or metalized, which is made with thermal stitching, and 4. The adhesive zipper with specific dimensions is made of aluminum foil on both sides, with male and female adhesive for fixing it around the arm.

[Claim 4] According to claim No.1 , in the production of this cuff, the size must be according to the thermal sewing standard. This is sewn by a rectangular mold, exactly to the desired size, by electric current and the element embedded in it, all around the cuff and its components.

[Claim 5] According to claim No.1 , the Tube installed on the cuff has a specified width and length and has a tee that is in a certain part of the outer tube. Also, a tube, with the same diameter and a specific length, is connected to the third part of the tee, for the air inlet and outlet and placement of the air inlet and outlet pump. After the formation of the airbag, a maximum specified amount of tube length is inserted into the airbag at the right to be fixed with heat and special glue in the desired place.

[Claim 6] According to claim No.1 , the cuff of the home sphygmomanometer for adults in standard dimensions, for example, 14 x 50 cm, is a one-piece that includes the following items: 1 . Air inlet and outlet tubs inserted into the airbag, 2. Airbag with dimensions of 22 x 14 cm, made of aluminum foil or metalized, which is produced by thermal stitching. 3. An additional part with dimensions of 14 x 14 cm, made of aluminum foil or metalized, which is produced by thermal stitching, and 4. The adhesive zipper with dimensions of 14 x 14 cm is made of aluminum foil on both sides, with male and female adhesive, to wrap around the arm.

[Claim 7] According to claim No.1 , The cuff of the home sphygmomanometer used for children, in standard dimensions, for example, 9.5 x 37 cm, is a one- piece that has an airbag in dimensions of 9.5 x 18 cm.

[Claim 8] According to claim No.1 , the cuff for babies in standard dimensions, for example, 27 x 5.5 cm, is a one-piece that has an airbag in dimensions of 5.5 x 13 cm.

[Claim 9] According to claim No.1 , This is sewn by a rectangular mold, exactly to the desired size, by electric current and the element embedded in it, all around the cuff and its components (according to No.1 ). That is, it should be sewn to a width of 1 centimeter, and it is thermally sewn in a certain part of the male and female adhesive connection.

[Claim 10] According to claim No.1 , The tube installed on the cuff has an outer diameter of 8 mm and an inner diameter of 5 mm, in a length of 60 cm, which has a tee that is in the 40 cm part of the outer tube. Also, a tube of the same diameter and length of 30 cm is connected to the third part of the tee for the air inlet and outlet and the placement of the air inlet and outlet pump.

[Claim 11 ] According to claim No.1 , the tube is made of PVC, its outer diameter is 8 mm (+-0.2 mm) and its inner diameter is 5 mm. After forming the airbag, a maximum of 9 cm (this amount is 7 cm for children's cuffs and 3 cm for babies) of the length of the tubes is inserted into the airbag at the right end to be fixed in the desired place with heating and special glue.