CN209996409U

CN209996409U - tourniquet with self-adaptive tightness

Info

Publication number: CN209996409U
Application number: CN201820993924.XU
Authority: CN
Inventors: 戎军浩; 周维锋; 徐建桥
Original assignee: Cixi Brad Medical Instruments Co Ltd
Current assignee: Cixi Brad Medical Instruments Co Ltd
Priority date: 2018-06-26
Filing date: 2018-06-26
Publication date: 2020-01-31
Anticipated expiration: 2028-06-26

Abstract

The utility model discloses a tourniquet of self-adaptation elasticity, including the not telescopic area body for the hasp at connecting band body both ends, the hasp includes the lock body and the knot body of mutually supporting, the lock body sets up respectively in area body both ends with the knot body, still including set up in gasbag and second gasbag in the lock body, be provided with the inflation inlet on the lock body, the inflation inlet intercommunication the gasbag, inflation inlet department is provided with the pneumatic valve, the tourniquet still including set up in be close to the third gasbag of lock body end on the area body, be provided with the lock piece that slides in the lock body, the cooperation of knot body and lock piece that slides is in order to be connected the both ends of area body, gasbags and second gasbag set up respectively in lock piece both sides that slide, just the area of contact of gasbag and lock piece that slides is less than the area of contact of second gasbag and lock piece.

Description

tourniquet with self-adaptive tightness

Technical Field

The utility model belongs to the technical field of medical instrument and specifically relates to tourniquets.

Background

Tourniquet hemostasis is a simple and effective hemostasis method used for emergency treatment of extremity hemorrhage, and achieves the purpose of hemostasis by compressing blood vessels to block blood circulation; however, if the tourniquet is not used properly or used for a long time, the tourniquet can cause ischemia and necrosis of the far-end limbs and cause waste, so the tourniquet can be applied only when the bleeding is violent and the hemostasis cannot be realized by other methods; the tourniquet is preferably made of rubber strip or rubber tube, and inelastic bands such as cloth band and electric wire are not suitable. The tourniquet of buckle formula is had in the hemostasis commonly used, and this type of tourniquet is as long as buckle and telescopic band constitute, and the user utilizes the fixed of buckle and the elasticity of telescopic band to come to contract and tighten patient's hemorrhage position when stanching for the patient, reaches hemostatic purpose.

The inflatable tourniquet is used for inflating the air bag in the tourniquet to enable the air bag to expand to press a blood vessel to stop bleeding, the tourniquet is low in discomfort feeling on the surface of the bundled skin due to the adoption of the air bag, the ice compress effect can be achieved by filling cooling substances such as ice water into the air bag, the pain of a patient is reduced, the inflating quantity of the tourniquet needs to be determined manually, the limbs of a human body are deformed to different degrees due to different actions, at the moment, it is very difficult to accurately hold the tightening force of the tourniquet, and long-time over-pressing of the limb can cause unsmooth blood flow under the skin, so that the patient is numb and purplish, and unsmooth blood flow causes the skin to swell by steps.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides inflatable tourniquets that can the automatically regulated elasticity, is binding the inflation volume of controlling more easily of inflation in-process, avoids tying up the position and causes the secondary injury because of tying up of tourniquet.

In order to achieve the purpose, the utility model adopts the technical scheme that self-adaptive elastic tourniquet comprises a non-telescopic belt body, a lock catch used for connecting two ends of the belt body, wherein the lock catch comprises a lock body and a buckle body which are matched with each other, the lock body and the buckle body are respectively arranged at two ends of the belt body, the tourniquet further comprises a air bag and a second air bag which are arranged in the lock body, an inflation inlet is arranged on the lock body and communicated with the air bag, an air valve is arranged at the inflation inlet, the tourniquet further comprises a third air bag which is arranged on the belt body and is close to the end of the lock body, a air bag is communicated with the third air bag, the third air bag is communicated with the second air bag, a sliding locking block is arranged in the lock body, the buckle body is clamped with the sliding locking block to be connected with two ends of the belt body, a air bag and the second air bag are respectively arranged at two sides of the sliding locking block, and the contact area of the.

So set up for outside aerating device aerifys the back in to the gasbag from the inflation inlet, the inflation of gasbag will slide the locking piece and pass to the left side, the buckle body is pushed into inside the lock body, prevent that the buckle body atress from deviating from, then from the gasbag to the second gasbag in the inflation banding tourniquet, and aerify from the second gasbag to the third gasbag in, because the area of contact of third gasbag and slide the locking piece is greater than the area of contact of gasbag and slide the locking piece, so the lock piece that slides moves to the right, stops aerifing this moment.

Preferably, the sliding locking block is provided with a locking hole, a spring and a clamping block are arranged in the locking hole, the buckle body is clamped into the locking hole to connect the two ends of the belt body,

preferably, a partition board is arranged in the sliding lock block, the partition board divides the sliding lock block into two parts with different sectional areas, namely an upper chamber and a lower chamber, the second air bag is located in the upper chamber, and the th air bag is located in the lower chamber.

Preferably, a pressure relief valve is provided between the th air bag and the third air bag, and a second pressure relief valve is provided between the third air bag and the second air bag.

Preferably, the th relief valve and the second relief valve have the same structure, a pipeline is arranged in the th relief valve, a pressure spring and a sealing block are arranged in the th relief valve, and the sealing block controls the on-off of the pipeline.

The th pressure release valve and the second pressure release valve are arranged to ensure that the air sac generates more obvious inflation sequence, so that the working process of the tourniquet is more controllable.

Preferably, a bar-shaped opening is formed in the lock body, a handle is connected to the sliding locking block, and the handle extends out of the bar-shaped opening.

Through setting up the handle for the fastener is more convenient with the locking piece operation connection that slides, and, the handle can be used for the elasticity of manual regulation tourniquet.

Preferably, the handle is connected to the sliding lock block through threads, and the handle can be fixed to the lock body through screwing. The handle passes through threaded connection on the locking piece that slides, after the handle of screwing, the lock body can closely be laminated to the handle to make the locking piece that slides be fixed in the lock body.

The utility model discloses a main design idea does: the air bags are arranged in the lock catches, the tightness of the tourniquet is automatically adjusted through sequential inflation of the air bags, and more functions are given to the air bags, so that the lock catches can be adjusted more intelligently and conveniently.

The utility model has the advantages that the elasticity can be automatically adapted in the inflation process, the locking force of the tourniquet can be kept in fixed intervals under different inflation quantities, so that the patient feels more comfortable, the tightness of the lock catch can be more conveniently adjusted, and the tourniquet can be more conveniently taken down due to the convenience of adjustment.

Drawings

Fig. 1 is an overall view of preferred embodiments according to the present invention;

fig. 2 is a front view of preferred embodiments of the shackle according to the present invention;

fig. 3 to 5 are cross-sectional views of preferred embodiments of the shackle according to the present invention, respectively showing the working conditions in the lock body;

fig. 6 and 7 are internal structural views of preferred embodiments of the pressure relief valve according to the present invention, respectively illustrating different operating states of the pressure relief valve;

fig. 8 is a perspective view of preferred embodiments of the clasp body according to the invention;

fig. 9 is a cross-sectional view according to the invention according to the cross-section of fig. 2 DA-a.

In the figure, a lock catch 1, a lock body 11, a strip-shaped opening 110, an inflation inlet 111, a partition plate 112, a buckle body 12, a belt body 2, an th air bag 31, a second air bag 32, a third air bag 33, a sliding locking block 4, a clamping block 41, a spring 42, a th pressure relief valve 51, a sealing block 511, a pressure spring 512 and a second pressure relief valve 52 are arranged.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.

As shown in fig. 1 and 2, a tourniquet with adaptive elasticity comprises a non-retractable belt body 2, a latch 1 for connecting two ends of the belt body 2, wherein the latch 1 comprises a lock body 11 and a buckle body 12 which are matched with each other, the lock body 11 and the buckle body 12 are respectively fixedly connected with two ends of the belt body 2, in combination with fig. 3, the tourniquet further comprises a air bag 31 and a second air bag 32 which are arranged in the lock body 11, an inflation port 111 is arranged on the lock body 11, the position of the inflation port can be freely selected and can be arranged on the side surface or the end surface of the lock body, the inflation port 111 is communicated with the air bag 31, an air valve is arranged at the inflation port 111, the air valve in the scheme is an existing common air valve used in a bicycle wheel tire and has functions of inflation and deflation, the tourniquet further comprises a third air bag 33 which is arranged on the belt body 2 near the end of the lock body , the air bag 31 is communicated with the third air bag 33, the third air bag 33 is communicated with the second air bag 32, the connection mode is a sequential connection mode, the air bag 2 is connected with the second air bag 32 through the air bag, the latch block 3874, the latch block is arranged in the second air bag, the latch block 32 is capable of sliding and the latch block 12, the latch block is capable of sliding and the latch block 32, the latch block is capable of sliding and moving along with the second air bag, the latch block 12, the latch block 32, the latch block is arranged in the latch block 12, the latch block 4, the latch block is capable of sliding along with the latch block, the latch block 32, the latch.

It should be noted that, as shown in fig. 2, the end of the strap 2 is connected to the left end of the lock body 11, and the other end of the strap 2 is connected to the right end of the buckle body 12.

The sliding lock block 4 is provided with a partition plate 112, the partition plate divides the sliding lock block 4 into two parts with different sectional areas, namely an upper chamber and a lower chamber, the second air bag 32 is positioned in the upper chamber, and the th air bag 31 is positioned in the lower chamber.

Referring to fig. 6 and 7, a pressure relief valve 51 is arranged between the air bag 31 and the third air bag 33, and a second pressure relief valve 52 is arranged between the third air bag 33 and the second air bag 32, the pressure relief valve 51 and the second pressure relief valve 52 have the same structure, and the pressure relief valves are arranged to make the air bags generate more obvious inflation sequence, so that the existing partial gas pressure relief valve structure can achieve the purpose, while the pressure relief valve used in the embodiment blocks the pipeline through a sealing block 511 to achieve a sealed state, when the gas pressure at any end in the pipeline is higher than the set pressure of the pressure relief valve, the sealing block 511 is jacked up, the pipeline is communicated to regulate the gas, and when the pressure is lower than the set pressure, the sealing block 511 falls down to seal the pipeline.

The th relief valve 51 and the second relief valve 52 have the same structure, a pipeline is arranged in the th relief valve 51, a pressure spring 512 and a sealing block 511 are arranged in the th relief valve 51, and the sealing block 511 controls the on-off of the pipeline.

The lock body 11 is provided with a bar-shaped opening 110, the sliding lock block 4 is connected with a handle 43, and the handle 43 extends out of the bar-shaped opening 110.

The handle 43 is connected to the sliding lock block 4 by a screw thread, and the handle 43 can be fixed to the lock body 11 by screwing.

The strip-shaped opening 110 is provided to enable the handle 43 to move with the sliding lock piece 4.

As shown in fig. 8, the buckle body 12 is buckled with the sliding lock block 4, and the two flaps are closed by pressing the bending part on the buckle body 12, so as to unlock easily, and after the buckle body 12 enters the strip-shaped opening 110, the bending part is hidden, and the buckle body 12 cannot be separated from the sliding lock block 4.

The utility model has the working mode that the buckle body 12 is connected with the lock body 11, the air bag 31 is inflated from the inflation inlet 111, the air bag 31 is expanded, the sliding lock block 4 is pushed leftwards, when the sliding lock block 4 reaches the bottom, the air is continuously inflated, the air enters the third air bag 33 through the pressure release valve 51, the third air bag 33 is expanded, the tourniquet hoops the limb to stop bleeding, because the air inflation amount is unstable, the manual control is needed, when the air amount is excessive, the air enters the second air bag 32 through the second pressure release valve 52, the second air bag 32 is expanded, because the contact area between the second air bag 32 and the sliding lock block 4 is larger than that between the air bag 31 and the sliding lock block 4, and the air pressure in the air bag 31 and the second air bag 32 is the same as the air pressure in the pressure release valve, the air release valve is continuously inflated, the sliding lock block 4 can move rightwards to adjust the tightness of the tourniquet, when the sliding lock block 4 moves rightwards, the arm 511, the arm and the second air release valve 51 and the second air bag 52 are adjusted to be in a proper sealing state, the sealing state is adjusted to be in a proper state, the corresponding sliding lock block is screwed down, the handle is loosened, the handle is taken, and the tourniquet, and the corresponding sliding lock block is taken, and the corresponding hemostatic belt is taken.

It is worth to put forward, the utility model discloses in, third gasbag 33 set up in be close to lock body 11 end on the area body 2, and to detaining 12 end extension segment for behind tourniquet cramp, third gasbag 33 is located between hasp 1 and the human body, and hasp 1 can not the direct contact human body, has avoided the painful sense that hard thing brought.

In the embodiment, due to the convenience of design, the air bag is made of the existing material with poor elasticity, such as a plastic film air bag, so that the change of the internal pressure caused by the expansion of the air bag can be avoided, the expanded shape is more stable and is easy to control, and the using effect is better. But the gasbag still can be selected to realize each gasbag in the utility model provides a technical effect for the purpose, and other reasonable schemes are easily thought of to prior art personnel, for example through the elastic gasbag of chooseing for use after the experiment of limited number, and these reasonable choices also should fall into the protection scope that the utility model claims.

, the air cell 31 can lock the lock catch 1 in steps and can play a role of tightening the band body 2 by the action of inflation, the tightening band body 2 will be prior to the expansion of the third air cell 33, when unlocking, the sliding lock block 4 is moved to the right, the air in the air cell 31 will enter the third air cell 33 by being squeezed, but at the same time, the tourniquet will be lengthened, and the influence of the lengthened tourniquet is far greater than the expansion of the third air cell 33, so the tourniquet is loose.

The third balloon 33 is not fully inflated at the time of hemostasis, and the third balloon 33 is always in a continuously inflatable state due to being squeezed. Thus, when the tourniquet is over inflated, the third air bag 33 is expanded to achieve the purpose of keeping the limb compressed all the time after the tourniquet is lengthened due to the movement of the sliding lock block 4.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the principles of the present invention may be applied to any other embodiment without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

The tourniquet with the self-adaptive elasticity is characterized by comprising a non-telescopic strap body (2), lock catches (1) used for connecting two ends of the strap body (2), wherein each lock catch (1) comprises a lock body (11) and a buckle body (12) which are matched with each other, the lock bodies (11) and the buckle bodies (12) are respectively arranged at two ends of the strap body (2), the tourniquet further comprises a air bag (31) and a second air bag (32) which are arranged in the lock bodies (11), an inflation port (111) is arranged on each lock body (11), the inflation port (111) is communicated with the air bag (31), an air valve is arranged at the inflation port (111), the tourniquet further comprises a third air bag (33) which is arranged on the strap body (2) and close to the end of a lock body , the third air bag (33) is communicated with the third air bag (31), the third air bag (33) is communicated with the second air bag (32), a sliding lock block (4) is arranged in the lock body (11), the sliding buckle body (12) and the sliding lock block (4) are connected with the sliding air bag (32) in a clamping manner, the sliding lock body (2), the sliding lock blocks (31) are respectively contacted with the sliding lock blocks (32), and the sliding lock blocks (31) and the sliding lock blocks (32) are respectively arranged on two sides of the second air bag,

a strip-shaped opening (110) is arranged on the lock body (11), a handle (43) is connected on the sliding lock block (4), the handle (43) extends out from the strip-shaped opening (110),

the handle (43) is connected to the sliding locking block (4) through threads, and the sliding locking block (4) can be fixed on the lock body (11) through screwing the handle (43).
2. The self-adaptive elastic tourniquet according to claim 1, wherein the sliding lock block (4) has a lock hole, a spring (42) and a fixture block (41) are arranged in the lock hole, and the buckle body (12) is clamped into the lock hole to connect the two ends of the band body (2).
3. self-adaptive elastic tourniquet according to claim 2, wherein the lock body (11) is provided with a partition (112), the partition (112) divides the sliding lock block (4) into two parts with different cross-sectional areas, namely an upper chamber and a lower chamber, the second air bag (32) is positioned in the upper chamber, and the air bag (31) is positioned in the lower chamber.
4. self-adaptive elastic tourniquet according to claim 3, wherein a pressure relief valve (51) is provided between the air cell (31) and the third air cell (33), and a second pressure relief valve (52) is provided between the third air cell (33) and the second air cell (32).
5. The self-adaptive elastic tourniquet according to claim 4, wherein the pressure relief valve (51) and the second pressure relief valve (52) have the same structure, the pressure relief valve (51) has a pipeline therein, the pressure relief valve (51) has a pressure spring (512) and a sealing block (511) therein, and the sealing block (511) controls the on-off of the pipeline.