CN215228085U

CN215228085U - Tourniquet

Info

Publication number: CN215228085U
Application number: CN202121021817.9U
Authority: CN
Inventors: 马艳
Original assignee: Second Medical Center of PLA General Hospital
Current assignee: Second Medical Center of PLA General Hospital
Priority date: 2021-05-13
Filing date: 2021-05-13
Publication date: 2021-12-21
Anticipated expiration: 2031-05-13

Abstract

The utility model discloses a tourniquet, including the rubber tape, fixedly connected with installation piece on the lateral wall of rubber tape, run through on the lateral wall of installation piece and seted up the rectangular hole, the last top wall of rectangular hole is seted up flutedly, the inner wall of recess rotates and is connected with the transfer line, fixed the cup jointing has the gear on the lateral wall of transfer line, first cavity has been seted up in the installation piece, the one end of transfer line is passed the installation piece and is extended to in the first cavity, and its extension end is fixed and has been cup jointed the ratchet, the upside of ratchet is equipped with rather than supporting pawl, the second cavity has been seted up in the installation piece, be equipped with the pressing mechanism who is connected with the pawl in the second cavity. The utility model discloses a pawl uses the ratchet is supporting, favourable and make gear unidirectional rotation, and then the rubber tape can only outwards stimulate and make it tighten up, has improved hemostatic effect, simultaneously through the air cushion on the rubber tape lateral wall, is favorable to avoiding the too big patient's limbs of leading to of power that the rubber tape tightened up to cause the damage, and then avoids the patient uncomfortable at the hemostatic in-process.

Description

Tourniquet

Technical Field

The utility model relates to a tourniquet art field especially relates to a tourniquet.

Background

The tourniquet has the functions of quickly and effectively controlling bleeding, reducing blood volume loss and avoiding shock, can be used for the process of limb operations, aims to create a bloodless environment for operations, and has the functions of compression hemostasis and stuffing hemostasis besides tourniquet hemostasis.

However, when the traditional tourniquet is used, the rubber band is wound around the limb of a patient for a circle and tightly tightened, the rubber band is fixed through the buckle, the tissue of the limb of the patient can be bitten by the buckle, pain is brought to the patient, the rubber band can be loosened when the buckle is used, the hemostatic effect is reduced, the binding time of the tourniquet is generally loosened for about 1-2 hours, limb injury or nerve injury is avoided, and therefore the tourniquet is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a tourniquet.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a tourniquet, includes the rubber tape, fixedly connected with installation piece on the lateral wall of rubber tape, run through on the lateral wall of installation piece and seted up the rectangular hole, the last top wall of rectangular hole is seted up flutedly, the inner wall of recess rotates and is connected with the transfer line, and fixed the cup jointing has the gear on the lateral wall of transfer line, seted up first cavity in the installation piece, and the one end of transfer line passes in the installation piece extends to first cavity, and its extension end is fixed and has been cup jointed the ratchet, the upside of ratchet is equipped with rather than supporting pawl, be equipped with canceling release mechanical system on the lateral wall of pawl, set up the second cavity in the installation piece, and the second cavity sets up the one side at first cavity, be equipped with the pressing mechanism who is connected with the pawl in the second cavity.

Preferably, a strip-shaped groove is formed in the side wall of the rubber belt, a rack matched with the gear is fixedly connected to the inner bottom wall of the strip-shaped groove, and the rack is made of a flexible material.

Preferably, the reset mechanism comprises a rotating shaft which is rotatably connected to the inner wall of the first cavity, the ratchet wheel is fixedly sleeved on the side wall of the rotating shaft, the side wall of the pawl is fixedly connected with a spring, and one end, far away from the pawl, of the spring is fixedly connected with the upper top wall of the first cavity.

Preferably, pressing means is including rotating the lead screw of connection at the internal diapire of second cavity, the first servo motor of last top wall fixedly connected with of second cavity, and first servo motor's drive shaft and lead screw fixed connection, threaded connection has the slider on the lateral wall of lead screw, and fixedly connected with straight-bar on the lateral wall of slider, run through on the inner wall of second cavity and set up the bar hole with first cavity intercommunication, and the one end that the slider was kept away from to the straight-bar passes the upside that the bar hole extended to the pawl.

Preferably, the inner bottom wall of the second cavity is fixedly connected with a PLC controller, the fixed connection of the mounting block is connected with a timer connected with the input end of the PLC controller, the output end of the PLC controller is electrically connected with the first servo motor, the transmission rod penetrates through the ratchet wheel and extends into the second cavity, the inner bottom wall of the second cavity is fixedly connected with the second servo motor, and the extension end of the second cavity is fixedly connected with the driving shaft of the second servo motor.

Preferably, the lower end of the rubber belt is fixedly connected with an air cushion, and a plurality of round holes are formed in the side wall of the air cushion in a penetrating mode.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the rubber belt, the gear and the ratchet wheel are matched for use, so that the effect of matching the ratchet wheel for use through the pawl is achieved, the gear is favorable for rotating in one direction, the rubber belt can only be pulled outwards to enable the rubber belt to be tightened, the hemostatic effect is improved, meanwhile, the air cushion on the side wall of the rubber belt is favorable for avoiding the damage to limbs of a patient caused by the overlarge tightening force of the rubber belt, and further avoiding the discomfort of the patient in the hemostatic process.

2. The lead screw, the first servo motor and the timer are used in a matched mode, so that the effect that the PLC starts the first servo motor through the timer is achieved, the lead screw is favorable for driving the sliding block to move downwards, the straight rod further drives the pawl to rotate around the rotating shaft, the second servo motor is convenient to drive the transmission rod to enable the gear to rotate, and the tourniquet wound on the limb of a patient is loosened.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic view of a cross-sectional structure proposed by the present invention;

fig. 3 is a schematic structural view of a first cavity provided by the present invention;

fig. 4 is a schematic structural view of a second cavity according to the present invention;

fig. 5 is a partial enlarged view of a point a according to the present invention.

In the figure: the device comprises a rubber belt 1, a mounting block 2, a rectangular hole 3, a groove 4, a transmission rod 5, a gear 6, a first cavity 7, a ratchet wheel 8, a pawl 9, a second cavity 10, a strip-shaped groove 11, a rack 12, a rotating shaft 13, a spring 14, a lead screw 15, a first servo motor 16, a sliding block 17, a straight rod 18, a strip-shaped hole 19, a PLC (programmable logic controller) 20, a timer 21, an air cushion 22, a filling block 23 and a second servo motor 24.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-5, a tourniquet comprises a rubber belt 1, wherein the rubber belt 1 is a strip-shaped bandage and is made of rubber, an air cushion 22 is fixedly connected to the lower end of the rubber belt 1, a plurality of round holes are formed in the side wall of the air cushion 22 in a penetrating manner, so that soft tissue damage caused by overlarge compression force between the rubber belt 1 and a limb of a patient is avoided, a filling block 23 is fixedly connected to one end, close to an installation block 2, of the rubber belt 1, the filling block 23 is made of sponge, and when the other end of the rubber belt passes through a rectangular hole 3, the rubber belt 1 in the rectangular hole 3 has a height difference with one end of the rubber belt and is likely to affect a hemostatic effect, and the filling block 23 made of sponge avoids the condition;

the side wall of the rubber belt 1 is fixedly connected with an installation block 2, the installation block 2 is of a rectangular structure, a rectangular hole 3 is formed in the side wall of the installation block 2 in a penetrating mode, a groove 4 is formed in the upper top wall of the rectangular hole 3, the inner wall of the groove 4 is connected with a transmission rod 5 in a rotating mode, a gear 6 is fixedly sleeved on the side wall of the transmission rod 5 in a fixing mode, when the rubber belt is used, one end of the rubber belt 1 penetrates into the rectangular hole 3, the rack 12 is connected with the gear 6 in a meshed mode, the rubber belt 1 is pulled to be continuously tightened until limbs of a patient are tightly bound, and the hemostatic effect is achieved;

the side wall of the rubber belt 1 is provided with a strip-shaped groove 11, the inner bottom wall of the strip-shaped groove 11 is fixedly connected with a rack 12 matched with the gear 6, the rack 12 is made of flexible materials, a first cavity 7 is formed in the mounting block 2, one end of the transmission rod 5 penetrates through the mounting block 2 and extends into the first cavity 7, the extension end of the transmission rod is fixedly sleeved with a ratchet 8, the upper side of the ratchet 8 is provided with a pawl 9 matched with the ratchet 8, the effect of matching the ratchet 8 for use through the pawl 9 is beneficial to enabling the gear 6 to rotate in a single direction, further, the rubber belt 1 can only be pulled outwards to be tightened, the hemostasis effect is improved, meanwhile, the air cushion 22 on the side wall of the rubber belt 1 is beneficial to avoiding the damage to the limbs of a patient caused by the overlarge tightening force of the rubber belt 1, and further avoiding the discomfort of the patient in the hemostasis process;

a reset mechanism is arranged on the side wall of the pawl 9, the reset mechanism comprises a rotating shaft 13 which is rotatably connected to the inner wall of the first cavity 7, the ratchet wheel 8 is fixedly sleeved on the side wall of the rotating shaft 13, a spring 14 is fixedly connected to the side wall of the pawl 9, one end, far away from the pawl 9, of the spring 14 is fixedly connected with the upper top wall of the first cavity 7, one end of the pawl 9 is pulled through the spring 14, the other end of the pawl 9 is always clamped on the upper side of the ratchet wheel 8, a second cavity 10 is arranged in the mounting block 2, the second cavity 10 is arranged on one side of the first cavity 7, and a pressing mechanism connected with the pawl 9 is arranged in the second cavity 10;

the pressing mechanism comprises a lead screw 15 which is rotatably connected to the inner bottom wall of the second cavity 10, the upper top wall of the second cavity 10 is fixedly connected with a first servo motor 16, a driving shaft of the first servo motor 16 is fixedly connected with the lead screw 15, a sliding block 17 is in threaded connection with the side wall of the lead screw 15, a straight rod 18 is fixedly connected to the side wall of the sliding block 17, a strip-shaped hole 19 communicated with the first cavity 7 penetrates through the inner wall of the second cavity 10, and one end, far away from the sliding block 17, of the straight rod 18 penetrates through the strip-shaped hole 19 and extends to the upper side of the pawl 9;

inner bottom wall fixedly connected with PLC controller 20 of second cavity 10, the fixedly connected with of installation piece 2 and the timer 21 that PLC controller 20 input is connected, and PLC controller 20's output and first servo motor 16 electric connection, transfer line 5 passes ratchet 8 and extends to in the second cavity 10, and second cavity 10 inner wall fixedly connected with second servo motor 24, and its extension end and the drive shaft fixed connection of second servo motor 24, make PLC controller 20 start the effect of first servo motor 16 through timer 21, be favorable to lead screw 15 to drive slider 17 and move down, and then make straight-bar 18 drive pawl 9 and revolve axle 13 and rotate, be convenient for second servo motor 24 drive transfer line 5 to make gear 9 rotate, loosen the tourniquet that will twine on patient's limbs.

The working principle of the utility model is that when the utility model is used, one end of the rubber belt 1 penetrates into the rectangular hole 3, the rack 12 is meshed with the gear 6, the rubber belt 1 is pulled to be continuously tightened until the limbs of a patient are tightly bound to achieve the effect of hemostasis, when the rubber belt 1 is pulled, the ratchet wheel 8 is matched with the ratchet wheel 9 to use, the gear 6 is enabled to rotate in one way, the rubber belt 1 can only be pulled outwards to be tightened, the hemostasis effect is improved, meanwhile, the air cushion 22 on the side wall of the rubber belt 1 is utilized to avoid the limbs of the patient from being damaged due to the overlarge tightening force of the rubber belt 1, further the discomfort of the patient in the hemostasis process is avoided, then the PLC 20 is enabled to start the effect of the first servo motor 16 through the timer 21, the lead screw 15 is enabled to drive the sliding block 17 to move downwards, further the straight rod 18 is enabled to drive the ratchet wheel 9 to rotate around the shaft 13, the second servo motor 24 is enabled to drive the transmission rod 5 to rotate the gear 9, the tourniquet wound on the limb of the patient is loosened.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A tourniquet comprises a rubber belt (1) and is characterized in that an installation block (2) is fixedly connected onto the side wall of the rubber belt (1), a rectangular hole (3) is formed in the side wall of the installation block (2) in a penetrating mode, a groove (4) is formed in the top wall of the rectangular hole (3), a transmission rod (5) is rotatably connected onto the inner wall of the groove (4), a gear (6) is fixedly connected onto the side wall of the transmission rod (5) in a sleeved mode, a first cavity (7) is formed in the installation block (2), one end of the transmission rod (5) penetrates through the installation block (2) and extends into the first cavity (7), a ratchet wheel (8) is fixedly connected to the extending end of the transmission rod in a sleeved mode, a pawl (9) matched with the ratchet wheel (8) is arranged on the upper side of the ratchet wheel (8), a reset mechanism is arranged on the side wall of the pawl (9), a second cavity (10) is formed in the installation block (2), and the second cavity (10) is arranged on one side of the first cavity (7), and a pressing mechanism connected with the pawl (9) is arranged in the second cavity (10).

2. The tourniquet according to claim 1, wherein a strip-shaped groove (11) is formed in a side wall of the rubber band (1), a rack (12) matched with the gear (6) is fixedly connected to an inner bottom wall of the strip-shaped groove (11), and the rack (12) is made of a flexible material.

3. A tourniquet according to claim 1, wherein the return mechanism comprises a shaft (13) rotatably connected to the inner wall of the first cavity (7), and the ratchet (8) is fixedly attached to the side wall of the shaft (13), and a spring (14) is fixedly connected to the side wall of the pawl (9), and the end of the spring (14) away from the pawl (9) is fixedly connected to the upper top wall of the first cavity (7).

4. The tourniquet according to claim 1, wherein the pressing mechanism comprises a lead screw (15) rotatably connected to the inner bottom wall of the second cavity (10), the upper top wall of the second cavity (10) is fixedly connected with a first servo motor (16), a driving shaft of the first servo motor (16) is fixedly connected with the lead screw (15), a sliding block (17) is connected to the side wall of the lead screw (15) in a threaded manner, a straight rod (18) is fixedly connected to the side wall of the sliding block (17), a strip-shaped hole (19) communicated with the first cavity (7) penetrates through the inner wall of the second cavity (10), and one end, far away from the sliding block (17), of the straight rod (18) passes through the strip-shaped hole (19) and extends to the upper side of the pawl (9).

5. A tourniquet according to claim 4, wherein a PLC (programmable logic controller) is fixedly connected to the inner bottom wall of the second cavity (10), the mounting block (2) is fixedly connected to a timer (21) connected to an input end of the PLC (20), an output end of the PLC (20) is electrically connected to the first servo motor (16), the transmission rod (5) extends into the second cavity (10) through the ratchet wheel (8), and a second servo motor (24) is fixedly connected to the inner bottom wall of the second cavity (10) and an extension end of the second servo motor is fixedly connected to a driving shaft of the second servo motor (24).

6. The tourniquet according to claim 1, wherein an air cushion (22) is fixedly connected to the lower end of the rubber band (1), and a plurality of circular holes are formed through the side wall of the air cushion (22).