CN220236959U

CN220236959U - Tourniquet with adjustable pressure

Info

Publication number: CN220236959U
Application number: CN202323145172.1U
Authority: CN
Inventors: 胡志强; 程继伟; 曹利军; 李�杰; 贾玮荷; 文民; 毛立挺; 周苏波
Original assignee: 906 Hospital Of Joint Logistics Support Force Of Chinese Pla; 6th Medical Center of PLA General Hospital
Current assignee: 906 Hospital Of Joint Logistics Support Force Of Chinese Pla; 6th Medical Center of PLA General Hospital
Priority date: 2023-11-22
Filing date: 2023-11-22
Publication date: 2023-12-26
Anticipated expiration: 2033-11-22

Abstract

The utility model relates to the field of medical equipment, in particular to a pressure-adjustable tourniquet, which comprises a tourniquet body and an adjusting head, wherein a pressure adjusting piece, a pressure sensor and a display screen are arranged on the adjusting head. The pressurizing tourniquet can measure the leg circumference when being worn, and then output proper pressurizing pressure according to the leg circumference. The utility model can provide proper pressurizing pressure for the wounded, avoid the influence of excessive pressure on the blood supply at the far end, avoid the ischemia at the far end of limbs, and also avoid the problem of insufficient hemostatic pressure caused by insufficient pressure. The utility model has simple and reasonable structure, convenient operation and low manufacturing cost, and can be widely applied to field training.

Description

Tourniquet with adjustable pressure

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a tourniquet with adjustable pressure.

Background

Soldiers often experience bleeding from leg injuries during field training. Emergency hemostatic treatment of the leg is required after injury. In the prior art, a CAT tourniquet is mostly adopted for hemostasis, but the prior tourniquet is not easy to control the pressurizing pressure when in use, so that the wounded suffers from the adverse consequences of hemostasis failure, acral necrosis or hypovolemic shock and the like.

It is generally believed that the appropriate hemostatic pressure for the lower limb is 35-50kPa, and that the specific pressure is associated with the leg circumference, and when the leg circumference is greater than 50cm, the pressure should be around 50kPa, and when the leg circumference is less than 50cm, the tourniquet pressure should be comparable to the leg circumference value.

In the prior art, CN209203413U, for example, discloses an intelligent tourniquet for field operations, which can automatically control the pressurizing pressure of the tourniquet through an intelligent inflation box. But it has the following problems: 1. the specific pressure adjustment cannot be carried out aiming at parameters such as specific body type and leg circumference of a patient, and when the inflation pressure is not matched, the problems that the hemostatic effect is poor due to lower pressure or the remote blood supply is influenced due to excessive pressurization are easy to occur; 2. the intelligent inflatable box is large in size, inconvenient to carry and difficult to adapt to the field combat environment.

Disclosure of Invention

The utility model aims to overcome the problems and provide the tourniquet with adjustable pressure. In order to achieve the above purpose, the utility model adopts the following technical scheme:

the tourniquet with adjustable pressure comprises a belt body and an adjusting head, wherein an accommodating cavity for the belt body to pass through is formed in the bottom of the adjusting head, and the adjusting head is sleeved on the belt body through the accommodating cavity.

The pressure regulating part is rotated, the length of the pressure regulating part which is wound into the pressure regulating belt is controlled, and then the pressure of the belt body to the affected limb is regulated.

The pressure regulating part comprises a regulating knob, a rotating shaft and a locking assembly, wherein the rotating shaft is arranged at the lower part of the regulating knob and is fixedly connected with the regulating knob, the pressure regulating belt is wound at the bottom of the rotating shaft, a groove is arranged at the center of the top of the pressure regulating part, and a plurality of through holes in a circumferential array are formed in the side wall of the groove.

The adjusting head is equipped with the draw-in groove in corresponding through-hole position, locking assembly includes elasticity card, spring and slide switch, elasticity card lateral part is equipped with the latch, the latch passes the joint in the draw-in groove behind the through-hole, the spring is located between elasticity card and the recess bottom, slide switch locates elasticity card top.

The bottom of the adjusting head is provided with a pressure sensor for detecting the pressure of the tourniquet, and the top of the adjusting head is provided with a display screen and a switch for displaying the value of the pressure sensor.

As an improvement, the pressure regulating belt is flat.

As an improvement, the adjusting head is provided with a second accommodating cavity above the accommodating cavity, openings are arranged on two sides of the second accommodating cavity, and the pressure adjusting belt penetrates into the second accommodating cavity from the opening and is wound on the rotating shaft.

As an improvement, the bottom of the rotating shaft is provided with a wing plate, the wing plate is provided with a slotted hole, the pressure regulating belt penetrates through the slotted hole and is fixed on the rotating shaft, and the joint of the wing plate and the rotating shaft is provided with a plurality of reinforcing ribs.

As an improvement, the knob adopts a stepped structure, the bottom is a thick end, the top is a thin end, the adjusting head is provided with a scale for displaying the length of the pressure adjusting belt around the thick end, and the thick end is provided with an indication mark; the groove and the sliding switch are arranged at the center of the thin end.

As an improvement, an interlayer is arranged at the top of the belt body, and the pressure regulating belt is arranged in the interlayer in a penetrating way.

As an improvement, the tail end of the latch is provided with a slope part.

As an improvement, a limiting plate for preventing the sliding switch from slipping is arranged in the groove, and the limiting plate is arranged at intervals with the top of the groove.

The utility model has the advantages that:

1. the pressurizing tourniquet can measure the leg circumference when being worn, and then output proper pressurizing pressure according to the leg circumference. The utility model can provide proper pressurizing pressure for the wounded, avoid the influence of excessive pressure on the blood supply at the far end, avoid the ischemia at the far end of limbs, and also avoid the problem of insufficient hemostatic pressure caused by insufficient pressure.

2. The utility model has simple and reasonable structure, convenient operation and low manufacturing cost, and can be widely applied to field training.

Drawings

Fig. 1 is a structural diagram of a pressure-adjustable tourniquet according to embodiment 1.

Fig. 2 is a diagram showing the structure of the lower part of the pressure-adjustable tourniquet in embodiment 1.

Fig. 3 is an internal structural view of a belt body in a pressure-adjustable tourniquet according to embodiment 1.

Fig. 4 is an internal structural view of an adjusting head in a pressure-adjustable tourniquet according to embodiment 1.

Fig. 5 is a block diagram of the bottom of a rotor in a pressure-adjustable tourniquet according to example 1.

Fig. 6 is a structural view showing an adjusting knob in the pressure-adjustable tourniquet according to embodiment 1.

Fig. 7 is a structural diagram of a pressure adjusting member in a pressure-adjustable tourniquet according to embodiment 1.

Fig. 8 is a schematic diagram of the operation of a tourniquet clip with adjustable pressure according to embodiment 1.

The figures indicate:

the device comprises a 1-belt body, an 11-interlayer, a 2-adjusting head, a 21-accommodating cavity, a 22-clamping groove, a 23-scale, a 24-second accommodating cavity, a 25-opening, a 3-pressure adjusting piece, a 31-adjusting knob, a 311-thick end, a 321-thin end, a 313-indicating mark, a 32-rotating shaft, a 321-wing plate, a 322-slotted hole, a 323-reinforcing rib, a 33-groove, a 34-through hole, a 35-limiting plate, a 4-pressure adjusting belt, a 5-locking component, a 51-elastic card, a 52-spring, a 53-sliding switch, a 54-clamping tooth, a 55-slope part, a 6-pressure sensor, a 7-display screen and an 8-switch.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

In the description of the embodiments of the present utility model, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate an azimuth or a positional relationship based on that shown in the drawings, or an azimuth or a positional relationship in which the product of the present utility model is conventionally put when used, it is merely for convenience of describing the present utility model and simplifying the description, and it does not indicate or imply that the apparatus or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal," "vertical," "overhang" and the like, if any, do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the embodiments of the present utility model, "plurality" means at least 2.

In the description of the embodiments of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

The embodiment discloses tourniquet with adjustable pressure, as shown in fig. 1 and 4, including a belt body 1 and an adjusting head 2, the bottom of the adjusting head 2 is provided with a containing cavity 21 for the belt body 1 to pass through, and the adjusting head 2 is sleeved on the belt body 1 through the containing cavity 21.

The pressure adjusting piece 3 is arranged on the adjusting head 2, the pressure adjusting belt 4 is arranged on the outer surface of the belt body 1, and the pressure adjusting belt 4 is flat. As shown in fig. 3, the top of the belt body 1 is provided with an interlayer 11, and the pressure regulating belt 4 is arranged inside the interlayer 11 in a penetrating way.

As shown in fig. 4, the pressure regulating strip coil 4 is provided on the pressure regulating member 3, and the pressure regulating member 3 is rotated to control the length of the pressure regulating strip 4 to thereby regulate the pressure of the strip body 1 to the affected limb.

As shown in fig. 7, the pressure adjusting member 3 includes an adjusting knob 31, a rotating shaft 32, and a locking assembly 5. The rotating shaft 32 is arranged at the lower part of the adjusting knob 31 and is fixedly connected with the adjusting knob 31, and the pressure adjusting belt 4 is wound at the bottom of the rotating shaft 32. As shown in fig. 5, a wing plate 321 is arranged at the bottom of the rotating shaft 32, a slotted hole 322 is arranged on the wing plate 321, the pressure regulating belt 4 passes through the slotted hole 322 and is fixed on the rotating shaft 32, and a plurality of reinforcing ribs 323 are arranged at the joint of the wing plate 321 and the rotating shaft 32. The design of the wing plate 321 can effectively increase the rotation radius of the rotating shaft 32, thereby achieving the purpose of rapidly winding up the pressure regulating belt 4.

As shown in fig. 6 and 7, the knob 31 has a stepped structure, the bottom of which is a thick end 311 and the top of which is a thin end 312, the adjustment head 2 is provided with a scale 23 for displaying the length of the pressure adjustment belt 4 around the thick end 311, and the thick end 311 is provided with an indication mark 313.

The pressure regulating member 3 is provided with a groove 33 at the top center thereof, and the groove 33 is provided at the center of the tip 312. The side wall of the groove 33 is provided with a plurality of through holes 34 in a circumferential array.

As shown in fig. 7 and 8, the adjusting head 2 is provided with a clamping groove 22 at a position corresponding to the through hole 34, the locking assembly 5 comprises an elastic card 51, a spring 52 and a sliding switch 53, the side part of the elastic card 51 is provided with a clamping tooth 54, the clamping tooth 54 passes through the through hole 34 and then is clamped in the clamping groove 22, the spring 52 is arranged between the elastic card 51 and the bottom of the groove 33, and the sliding switch 53 is arranged above the elastic card 51.

As shown in fig. 8, the latch 54 is provided with an inclined arrangement, and the end of the latch 54 is provided with a slope 55. When the adjusting knob 31 is rotated, the slope portion 55 contacts the clamping groove 22 to retract the latch 54 and then rotate continuously, and when the adjusting knob rotates reversely, the back surface of the latch 54 is clamped in the clamping groove 22, so that the aim of locking is fulfilled.

The limiting plate 35 for preventing the sliding switch 53 from slipping is arranged in the groove 33, and the limiting plate 35 and the top of the groove 33 are arranged at intervals. It is ensured that the slide switch 53 is always inside the recess 33, avoiding false touches by a wounded in the course of movement.

When the sliding switch 53 is pressed, the elastic card 51 slides downward to drive the latch 54 to retract inward, so as to release the locking with the slot 22, thereby achieving the purpose of actively releasing the locking.

As shown in fig. 2 and 6, a pressure sensor 6 for detecting the tourniquet pressure is arranged at the bottom of the adjusting head 2, and a display screen 7 and a switch 8 for displaying the value of the pressure sensor 6 are arranged at the top of the adjusting head 2.

As shown in fig. 4, the adjusting head 2 is provided with a second accommodating chamber 24 above the accommodating chamber 21, two sides of the second accommodating chamber 24 are provided with openings 25, and the pressure adjusting belt 4 penetrates into the second accommodating chamber 21 from the openings 25 and is wound on the rotating shaft 32.

When the utility model is used, the belt body 1 is sleeved on the proximal end of the affected limb, and then the pressure adjusting knob 31 is rotated to enable the pressure adjusting belt 4 to be wound on the rotating shaft 32, so that the belt body 1 is tightened. In the process of continuously tightening the belt body 1, the indication of the scale 23 is the leg circumference length of the patient when the belt body 1 initially generates pressure on the affected limb, and the adjusting knob 31 is continuously rotated according to the pressure indication on the display screen 7 on the basis, so that the rotation can be stopped when the pressure indication is equal to the leg circumference (the leg circumference value is 35-50 cm) or reaches 50KPa (the leg circumference value is greater than 50 cm), and the hemostatic fixation is completed.

When the patient is transported to the safe position and needs to be subjected to subsequent treatment or long-time pressurization needs to relax the tourniquet to restore the distal blood supply, the sliding switch 53 is pressed to release the locking. And (5) continuing to press and stop bleeding if needed, and repeating the pressing steps.

The above description of the specific embodiments of the present utility model is given by way of example only, and the present utility model is not equivalent to the above-described specific embodiments. Any equivalent modifications and substitutions for the present utility model will occur to those skilled in the art, and are also within the scope of the present utility model. Accordingly, equivalent changes and modifications to the disclosed embodiments are intended to be included within the scope of the present utility model.

Claims

1. The tourniquet with adjustable pressure is characterized by comprising a tourniquet body and an adjusting head, wherein the bottom of the adjusting head is provided with a containing cavity for the tourniquet body to pass through, and the adjusting head is sleeved on the tourniquet body through the containing cavity;

the pressure regulating part is rotated to control the length of the pressure regulating part which is wound into the pressure regulating belt so as to regulate the pressure of the belt body on the affected limb;

the pressure regulating part comprises an adjusting knob, a rotating shaft and a locking assembly, the rotating shaft is arranged at the lower part of the adjusting knob and is fixedly connected with the adjusting knob, the pressure regulating belt is wound at the bottom of the rotating shaft, a groove is arranged at the center of the top of the pressure regulating part, and a plurality of circumferential array through holes are arranged on the side wall of the groove;

the adjusting head is provided with a clamping groove at the position corresponding to the through hole, the locking assembly comprises an elastic card, a spring and a sliding switch, the side part of the elastic card is provided with a clamping tooth, the clamping tooth is clamped in the clamping groove after passing through the through hole, the spring is arranged between the elastic card and the bottom of the groove, and the sliding switch is arranged above the elastic card;

2. The pressure-adjustable tourniquet of claim 1 wherein said pressure-adjustment band is flat.

3. The pressure-adjustable tourniquet according to claim 2, wherein the adjusting head is provided with a second accommodating cavity above the accommodating cavity, openings are arranged on two sides of the second accommodating cavity, and the pressure-adjustable tourniquet penetrates into the second accommodating cavity from the openings and is wound on the rotating shaft.

4. A tourniquet according to claim 3, wherein a wing plate is arranged at the bottom of the shaft, a slot is arranged on the wing plate, the pressure adjusting belt passes through the slot and is fixed on the shaft, and a plurality of reinforcing ribs are arranged at the joint of the wing plate and the shaft.

5. The pressure-adjustable tourniquet according to claim 4, wherein the knob is of a stepped structure, the bottom is a thick end, the top is a thin end, the adjusting head is provided with a scale for displaying the length of the pressure-adjustable tourniquet around the thick end, and the thick end is provided with an indication mark;

the groove and the sliding switch are arranged at the center of the thin end.

6. The pressure-adjustable tourniquet according to claim 1, wherein the top of the band body is provided with an interlayer, and the pressure-adjusting band is arranged inside the interlayer in a penetrating manner.

7. The pressure-adjustable tourniquet according to claim 1, wherein the latch tip is provided with a ramp.

8. The pressure-adjustable tourniquet according to claim 1, wherein a limiting plate for preventing the sliding switch from slipping is arranged in the groove, and the limiting plate is arranged at a distance from the top of the groove.