CN106768604B

CN106768604B - Air inlet device of pressure measuring instrument

Info

Publication number: CN106768604B
Application number: CN201611073253.7A
Authority: CN
Inventors: 郭惠娟; 张绍杰; 张鲜鲜
Original assignee: Luoyang Central Hospital
Current assignee: Luoyang Central Hospital
Priority date: 2016-11-29
Filing date: 2016-11-29
Publication date: 2023-09-15
Anticipated expiration: 2036-11-29
Also published as: CN106768604A

Abstract

The utility model provides an air inlet unit of pressure gauge, includes pressurization ball, manometer, air supply pipe, and the air supply pipe loops through connecting tube and pressurization ball to be connected, is equipped with the manometer that is used for detecting the air supply pipe internal pressure on this connecting tube, is provided with the bleed valve on being located connecting tube between manometer and the pressurization ball, the air supply pipe includes linkage segment and inflation section, form a cavity between the inner wall and the outer wall of inflation section, be provided with the air inlet that is linked together with the air supply passageway in the upper end of cavity, evenly be equipped with a plurality of gas outlet in the cavity, be provided with the elastic membrane that is integrated into the structure with the outer wall connection of inflation section in the position that corresponds with each gas outlet, evenly be provided with the arch that the elastic material was made on the outer wall of inflation section. The air inlet device is simple in structure, easy to operate, economical and applicable, and capable of effectively solving the problem that the tourniquet air bag pressure is insufficient due to air leakage during inflation, and high in treatment efficiency in the aspect of hemostasis of patients.

Description

Air inlet device of pressure measuring instrument

Technical Field

The invention relates to the technical field of medical instruments, in particular to an air inlet device of a pressure measuring instrument.

Background

The conventional PCI postoperative patient needs to perform compression hemostasis on the puncture part of the patient, usually adopts compression bandaging tightness to achieve hemostasis, generally needs 3 kg of pressure to perform compression hemostasis optimally, and needs to relax once every 2 hours and 3 times within 6 hours after operation, and then is removed after the doctor makes rounds of the rounds in the next morning. There are often several disadvantages: firstly, when in bandaging, the force applied by a person is uneven, so that secondary collapse of wounds is often caused, blood is lost, anemia is aggravated, and the injury is caused to a patient; secondly, the symptoms such as hand swelling, bluish violet, bleeding points, numbness and the like easily occur to patients during the period of wrapping the elastic band to stop bleeding due to ischemia and hypoxia, sympathological storm and shock even occur in the first hours after operation, radial nerve damage and upper limb dysfunction occur to serious patients; finally, when the skin is removed, the elastic band is stuck to the skin, so that the skin is easy to be torn, secondary injury is caused to patients, and particularly, when the skin is torn, a patient with low immunity, such as a diabetic patient, is difficult to heal, and great injury is caused to the body and the mind of the patient. The above symptoms are caused by the fact that whether the pressure applied to the patient can effectively stop bleeding cannot be intuitively observed, the pressure of the hemostasis point cannot be accurately controlled, and for the above reasons, a pressure measuring instrument with a pressure display function is appeared on the market.

The existing air inlet device of the hemostatic pressure measuring instrument in the market is generally characterized in that a hemostatic belt is connected with the pressure measuring instrument through a common hose, and the defect is that when air is filled, the air in the tube is easy to escape from an interface, so that the pressure of an air bag filled in the hemostatic belt is difficult to reach the hemostatic requirement, the hemostatic effect is not achieved, the treatment of a patient can be delayed, and the difficulty of treatment and diagnosis is brought to the patient and doctors, so that the air inlet device of the hemostatic pressure measuring instrument capable of avoiding air leakage is very needed.

Disclosure of Invention

The invention aims to solve the technical problems and provide an air inlet device of a pressure measuring instrument.

The technical scheme of the invention is as follows: the utility model provides an air inlet unit of pressure gauge, includes pressurization ball, manometer, air supply pipe, and the air supply pipe loops through connecting tube and pressurization ball to be connected, is equipped with the manometer that is used for detecting the air supply pipe internal pressure on this connecting tube, is provided with the bleed valve on being located connecting tube between manometer and the pressurization ball, the air supply pipe includes linkage segment and inflation section, form a cavity between the inner wall and the outer wall of inflation section, be provided with the air inlet that is linked together with the air supply passageway in the upper end of cavity, evenly be equipped with a plurality of gas outlet in the cavity, be provided with the elastic membrane that is integrated into the structure with the outer wall connection of inflation section in the position that corresponds with each gas outlet, evenly be provided with the arch that the elastic material was made on the outer wall of inflation section.

Further preferably, the air supply pipe is provided with a check valve.

Further preferably, the outer diameter of the air supply pipe is the same as the inner diameter of the tourniquet opening.

Further preferably, the material of the elastic film is rubber.

Further preferably, the elastic film is spaced apart by 8-12mm.

Further preferably, the material of the protrusions is silicone rubber.

Further preferably, the shape of the protrusions is circular or hexagonal.

The beneficial effects of the invention include the following three aspects:

1. the inflatable section of the air supply pipe is provided with a plurality of elastic films, when air is supplied, one part of air enters the air bag of the tourniquet along with the air supply channel, and the other part of air enters the elastic films of the inflatable section, and as the air enters, the elastic films start to expand and squeeze the inner wall of the interface of the tourniquet until the interface between the inflatable section of the air supply pipe and the tourniquet is completely sealed, and a sealed cavity is formed at the interface, so that the air leakage phenomenon can be effectively prevented, and the hemostatic treatment time of a patient is shortened;

2. the common tourniquet is only simply in butt joint with the hose at the joint of the air supply pipe, when the air is introduced, the pressure in the pipe is increased, so that a part of air always overflows through a gap at the joint, the pressure in the tourniquet air bag cannot be reached, the hemostatic effect of the tourniquet is seriously affected, the device is provided with the bulge made of silicone rubber on the air supply pipe, the silicone rubber is a material with great friction, when the air supply pipe is connected with the tourniquet, the bulge tightly presses the inner wall of the tourniquet connecting port to seal, so that the air is effectively prevented from escaping, and meanwhile, the bulge simultaneously generates friction and extrusion effects on the inner wall of the tourniquet connecting port, so that the device and the tourniquet are firmly fixed, and unnecessary injury to a patient body is prevented from falling off in the hemostatic working process;

3. the device senses the pressure of the elastic hemostatic bandage at the puncture point of the radial artery of the wrist after the cardiac intervention operation through the pressure sensor, displays the corresponding pressure, and a worker can judge whether the elasticity of the elastic bandage is proper according to the pressure, so that the most proper pressure can be adjusted, the hemostasis by compression can be effectively achieved, and complications such as discomfort, swelling, bleeding point and the like of a patient caused by overlarge pressure can be avoided;

to sum up, this device simple structure, easy operation, patient feel characteristics such as comfortable, economy are suitable for, effectively avoid patient's hand swelling, influence symptoms such as venous return, improve the problem that leads to patient treatment time to prolong because of tourniquet gasbag pressure is not enough, handle in the aspect of the patient hemostasis efficient, improved treatment greatly, can make a contribution for medical industry.

Drawings

FIG. 1 is a schematic diagram of a load cell;

FIG. 2 is a schematic side view of a section of a cone of a load cell;

FIG. 3 is a schematic view of the structure of the cone section of the load cell before expansion of the elastic membrane;

FIG. 4 is a schematic view of the structure of the elastic membrane of the cone section of the load cell after expansion;

the marks in the figure: 1. the pressure ball, 2, the manometer, 3, straight tube section, 4, taper tube section, 401, air inlet, 402, elastic film, 403, boss, 404, air outlet, 405, air supply channel, 5, vent valve, 6, check valve.

Detailed Description

An air inlet device of a pressure gauge comprises the following specific embodiments:

an air inlet device of a pressure measuring instrument comprises a pressurizing ball 1, a pressure gauge 2 and an air supply pipe, wherein a check valve 6 is arranged on the air supply pipe to prevent gas from flowing back. The air supply pipe is connected with the pressurizing ball 1 sequentially through a connecting pipeline, a pressure gauge 2 for detecting the pressure in the air supply pipe is arranged on the connecting pipeline, a deflation valve 5 is arranged on the connecting pipeline between the pressure gauge 2 and the pressurizing ball 1, the air supply pipe comprises a connecting section 3 and an inflation section 4, the pressure can be visually observed through the pressure gauge, the medical staff can conveniently and timely adjust the pressure of the tourniquet of the hand of the patient, and uncomfortable symptoms are avoided;

a cavity is formed between the inner wall and the outer wall of the air charging section 4, an air inlet 401 communicated with an air supply channel 405 is arranged at the upper end of the cavity, a plurality of air outlets 404 are uniformly arranged in the cavity, an elastic film (402) which is connected with the outer wall of the air charging section (4) and is of an integral structure and made of silicon rubber is arranged at the position corresponding to each air outlet (404), and when air enters the air charging section 4 of the air inlet pipe, the air flow direction is divided into two parts: a portion of the gas enters the balloon of the tourniquet along with the gas delivery channel 405 of the gas delivery tube; another portion of the gas enters the elastic membrane 402 through the gas outlet 404 of the gas-filled stage 4. When no gas exists, the elastic film 402 can be contracted into a part of the outer wall of the inflatable section 4, when the gas is inflated, the elastic film 402 expands to be spherical, and the inner wall of the tourniquet interface is tightly extruded along with the expansion until the interface between the inflatable section 4 and the tourniquet of the device is completely closed, at the moment, a sealed cavity is formed at the interface, so that the air leakage phenomenon can be effectively prevented, and the treatment time of a patient is shortened;

the outer wall of the inflatable section 4 is also provided with a protrusion 403 made of a silicone rubber material, and because the silicone rubber has good physical properties such as elasticity and friction resistance, when the inflatable section 4 is connected with the tourniquet, the protrusion 403 plays two roles: 1. the protrusion 403 presses the inner wall of the tourniquet connector to seal the interface of the tourniquet connector and the tourniquet connector, so that gas can be effectively prevented from escaping and secondary damage to a patient can be effectively prevented; 2. meanwhile, the bulge 403 rubs the inner wall of the tourniquet connector while extruding the inner wall of the connector, so that the inflatable section 4 of the device can be firmly fixed with the tourniquet, and unnecessary damage to the body of a patient is prevented from falling off in the hemostatic working process;

further preferably, the outer diameter of the air supply pipe is the same as the inner diameter of the tourniquet opening;

further preferably, the interval of the elastic films 402 is 8-12mm, the elastic films 402 are distributed, and when the elastic films 402 at corresponding positions expand, the inner wall can be uniformly extruded, so that the interface is effectively sealed;

further preferably, the shape of the protrusion 403 is circular or hexagonal.

Claims

1. The utility model provides an air inlet unit of pressure gauge, includes pressurization ball (1), manometer (2), gas supply pipe, and the gas supply pipe loops through connecting tube and is connected with pressurization ball (1), is equipped with manometer (2) that are used for detecting the gas supply pipe internal pressure on this connecting tube, is provided with bleed valve (5), its characterized in that on being located connecting tube between manometer (2) and pressurization ball (1): the air supply pipe comprises a connecting section (3) and an air supply section (4), a cavity is formed between the inner wall and the outer wall of the air supply section (4), an air inlet (401) communicated with an air supply channel (405) is formed in the upper end of the cavity, a plurality of air outlets (404) are uniformly formed in the cavity, an elastic film (402) which is integrally connected with the outer wall of the air supply section (4) is arranged at the position corresponding to each air outlet (404), protrusions (403) made of elastic materials are uniformly arranged on the outer wall of the air supply section (4), the outer diameter of the air supply section (4) of the air supply pipe is the same as the inner diameter of the opening section of the tourniquet, when air is introduced, a part of air enters the air bag of the air supply section (4) along with the air passage, and the other part of the air enters the elastic film (402) of the air supply section (4), and the elastic film (402) starts to expand and extrudes the inner wall of the interface of the tourniquet until the interface between the air supply section and the tourniquet is completely sealed.

2. An air intake device of a load cell as defined in claim 1, wherein: the air supply pipe is provided with a check valve (6).

3. An air intake device of a load cell as defined in claim 1, wherein: the elastic film (402) is made of rubber.

4. An air intake device of a load cell as defined in claim 1, wherein: the spacing between two adjacent elastic films (402) is 8-12mm.

5. An air intake device of a load cell as defined in claim 1, wherein: the material of the bulge (403) is silicon rubber.

6. An air intake device of a load cell as defined in claim 1, wherein: the shape of the protrusions (403) is round or hexagonal.