CN109009315B

CN109009315B - Automatic blood-expelling tourniquet

Info

Publication number: CN109009315B
Application number: CN201810669798.7A
Authority: CN
Inventors: 戎军浩; 周维锋; 徐建桥
Original assignee: Cixi Bulade Medical Devices Co ltd
Current assignee: Cixi Bulade Medical Devices Co ltd
Priority date: 2018-06-26
Filing date: 2018-06-26
Publication date: 2023-09-22
Anticipated expiration: 2038-06-26
Also published as: CN109009315A

Abstract

The invention discloses an automatic blood-dispelling tourniquet, which comprises a base and a tourniquet rotatably connected to the base, wherein a storage cavity for accommodating the tourniquet is arranged at the bottom of the base, a pneumatic rod which is connected with a rope threading rod in a sliding manner is fixed at the position, corresponding to the storage cavity, of the top of the base, and a hand rest which is connected to the base in a sliding manner is arranged between the pneumatic rod and the storage cavity; a knotting cavity for knotting the tourniquet is arranged between the hand rest and the storage cavity, one side of the knotting cavity is connected with a rotating cone which can be matched with the threading rod in a sliding manner, the other side of the knotting cavity is provided with a rope fixing block which corresponds to the rotating cone and can fix the tourniquet, and one end, far away from the rotating cone, of the threading rod is provided with a rope pulling block which can fix the tourniquet; the first rod and the second rod which can be wound around the tourniquet are respectively fixed at two ends of the rotating cone. The tourniquet can automatically tighten the tourniquet on the arm of a patient, and the using length of the tourniquet can be adjusted according to the thickness of the arm.

Description

Automatic blood-expelling tourniquet

Technical Field

The invention belongs to the technical field of medical facilities, and particularly relates to an automatic blood-dispelling tourniquet.

Background

Tourniquet is a tool used for blood transfusion, blood drawing, hemostasis and other situations in medical treatment, and achieves the purpose of hemostasis by pressing blood vessels to block blood circulation. The traditional tourniquet form is reuse's rubber tube or rubber strip, along with the whole promotion of medical treatment and health requirement and technique, the tourniquet of above-mentioned form is withdrawed from history stage gradually owing to there is cross infection risk, and the disposable tourniquet of taking the strip as unit and independently packing is replaced to natural rubber material, has promoted health level, has effectively prevented the transmission of germ.

Currently, in clinical hospitals, tourniquets used for blood drawing or hemostasis are manually tightened by medical staff. When patients are more, a great deal of time is wasted, the use is inconvenient, and the operation is troublesome. The length of the tourniquet is different according to the thickness of the arm, and the tourniquet taking the strip as a unit can have the phenomenon of insufficient length or waste, and needs to be improved to a certain extent.

Disclosure of Invention

The invention mainly aims to provide an automatic blood-dispelling tourniquet, which can automatically tighten the tourniquet on the arm of a patient when the patient is more in a hospital, and can adjust the using length of the tourniquet according to the thickness of the arm.

In order to achieve the above purpose, the invention adopts the following technical scheme: the automatic blood-expelling tourniquet comprises a base and a tourniquet rotatably connected to the base, wherein a storage cavity for accommodating the tourniquet is arranged at the bottom of the base, a pneumatic rod which is connected with a rope penetrating rod in a sliding manner is fixed at the position, corresponding to the storage cavity, of the top of the base, a hand placing frame which is connected to the base in a sliding manner is arranged between the pneumatic rod and the storage cavity, and a through groove through which the rope penetrating rod can pass is formed in the hand placing frame; a knotting cavity for knotting the tourniquet is arranged between the hand rest and the storage cavity, one side of the knotting cavity is connected with a rotating cone which can be matched with the threading rod in a sliding manner, the other side of the knotting cavity is provided with a rope fixing block which corresponds to the rotating cone and can fix the tourniquet, one end, far away from the rotating cone, of the threading rod is provided with a rope pulling block which can fix the tourniquet, and the rope pulling block and the air pressure rod are mutually attracted through magnetism; the tourniquet comprises a tourniquet, a rotating cone, a piston, a threaded section, a first rod and a second rod, wherein the piston moves in an air cavity through an air pump in a clamping mode at one end of the rotating cone, the threaded section matched with the rotating cone is arranged on the inner wall, close to one end of the knotting cavity, of the air cavity, and the first rod and the second rod which can be wound on the tourniquet are respectively fixed at two ends of the rotating cone.

As an improvement, the base is slidably connected with a push plate which moves horizontally through a spring, the spring is always in a compressed state, the push plate is slidably clamped with the hand placing frame, and one end of the hand placing frame away from the push plate is matched with an inclined plane on the base for movement. When the arm is placed on the hand rest, the downward gravity enables the hand rest to move downwards under the action of the inclined plane and slide rightwards, so that the arm is contacted with the tourniquet; when the arm leaves, the push plate can reset the hand rest under the action of the spring.

As an improvement, the tourniquet is located between the first rod and the second rod, the first rod is shorter than the second rod, and when the rotating cone rotates, the tourniquet is wound on the first rod and the second rod to form a knotting hole. When the tourniquet is wound by the first rod and the second rod, due to the tension force of the tourniquet, when the rotating cone rotates to a certain angle, the tourniquet can scratch between the first rod and the second rod from one end of the shorter first rod, so that a staggered knotting hole is formed between the tourniquet and the tourniquet wound on the first rod and the second rod, one end of the tourniquet pulled by the rope penetrating rod can be knotted through the knotting hole, and the tourniquet can be automatically tightened on an arm.

As an improvement, the thread segments may rotate the cone three-quarters of a revolution. When the rotating cone rotates for three quarters of a circle, the tourniquet just forms a knotting hole, and a slipknot can be made, so that the tourniquet is convenient to be untied later.

As an improvement, the stay rope block and the rope fixing block are internally provided with fixing mechanisms which can fix and loosen the tourniquet. The fixing mechanism is a manipulator.

As an improvement, the fixing mechanism comprises a screw rod driven by a motor to rotate and a moving block matched with the screw rod, two ends of the moving block are fixedly provided with elastic arms which can be opened to two sides, and the elastic arms are fixedly provided with hook claws which form acute angles with the elastic arms; when the elastic arms are folded under the limit of the inner wall of the fixing mechanism, the hook claws are mutually attached and attached to the inner wall of the fixing mechanism. When the elastic arm stretches out, the tourniquet can be hooked by the hook claw; when the elastic arm is retracted, the tourniquet is clamped between the hook claw and the inner wall of the fixing mechanism, and the tourniquet is fixed.

As an improvement, a blade capable of cutting off the tourniquet is arranged above the hook claw in the stay cord block. When the rope threading rod moves upwards after knotting, one end of the tourniquet is continuously pulled, when the tourniquet tightens the arm, the force of the rope pulling block on the tourniquet is increased, the tourniquet bound on the arm is cut off through friction with the blade, and meanwhile a new tourniquet is pulled to return to the initial position.

As an improvement, a baffle is fixed above the storage cavity, and an opening formed by the baffle and the storage cavity for allowing the tourniquet to pass through is close to one side of the air cavity. The baffle can also determine the moving path of the tourniquet while protecting the tourniquet in the storage cavity from being polluted, so that the tourniquet can be conveniently grabbed by the stay cord block.

As an improvement, the hand rest is provided with a groove for placing the arm. The position of the arm is determined.

Compared with the prior art, the invention has the advantages that: when patients are more in the hospital, the tourniquet can be automatically tightened on the arms of the patients, so that the time is saved; and the length of the tourniquet can be adjusted according to the thickness of the arm, so that resources are saved.

Drawings

FIGS. 1-2 are overall cross-sectional views of the present invention;

FIG. 3 is a front view of the present invention;

FIGS. 4-5 are partial enlarged process views of the A in FIG. 3;

FIG. 6 is an overall cross-sectional view of the present invention;

FIG. 7 is a top view of the hand rest of the present invention;

FIG. 8 is a front cross-sectional view of the securing mechanism of the present invention;

fig. 9 to 10 are plan sectional views of the fixing mechanism of the present invention;

the component names corresponding to the respective reference numerals are: 1. a base; 11. a baffle; 12. a storage cavity; 13. a knotting cavity; 14. an inclined plane; 15. rope fixing blocks; 2. placing a hand rest; 21. a groove; 22. a push plate; 23. a spring; 3. an air cavity; 31. a piston; 32. a rotating cone; 33. a first lever; 34. a second lever; 35. an air pump; 36. a threaded section; 4. a pneumatic rod; 41. a rope threading rod; 42. a pull rope block; 5. a tourniquet; 51. an arm; 6. a fixing mechanism; 61. a moving block; 62. an elastic arm; 63. a hook claw; 64. a motor; 65. and (3) a screw.

Detailed Description

The following description is presented to enable one of ordinary skill in the art to make and use the invention. The preferred embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art.

The tourniquet comprises a base 1 and a tourniquet 5 rotatably connected to the base 1, wherein a storage cavity 12 for accommodating the tourniquet 5 is arranged at the bottom of the base 1, a pneumatic rod 4 which is connected with a rope threading rod 41 in a sliding manner is fixed at the position, corresponding to the storage cavity 12, of the top of the base 1, a hand placing frame 2 which is connected to the base 1 in a sliding manner is arranged between the pneumatic rod 4 and the storage cavity 12, and a through groove through which the rope threading rod 41 can pass is formed in the hand placing frame 2; a knotting cavity 13 for knotting the tourniquet 5 is arranged between the hand rest 2 and the storage cavity 12, one side of the knotting cavity 13 is slidably connected with a rotating cone 32 which can be matched with the threading rod 41, the other side of the knotting cavity is provided with a rope fixing block 15 which corresponds to the rotating cone 32 and can fix the tourniquet 5, one end of the threading rod 41 away from the rotating cone 32 is provided with a rope pulling block 42 which can fix the tourniquet 5, and the rope pulling block 42 and the air pressure rod 4 are mutually attracted through magnetism; one end of the rotating cone 32 is clamped with a piston 31 which moves in the air cavity 3 through an air pump 35, the inner wall of the air cavity 3, which is close to one end of the knotting cavity 13, is provided with a threaded section 36 matched with the rotating cone 32, and two ends of the rotating cone 32 are respectively fixed with a first rod 33 and a second rod 34 which can be wound around the tourniquet 5.

Specifically, the base 1 is slidably connected with a push plate 22 that moves horizontally through a spring 23, the spring 23 is always in a compressed state, the push plate 22 is slidably clamped with the hand placing frame 2, and one end of the hand placing frame 2 away from the push plate 22 is matched with the inclined plane 14 on the base 1 for movement.

Specifically, the tourniquet 5 is located between the first rod 33 and the second rod 34, the first rod 33 is shorter than the second rod 34, and when the rotating cone 32 rotates, the tourniquet 5 is wound on the first rod 33 and the second rod 34 to form a knotting hole.

Specifically, the thread segments 36 may rotate the cone 32 three-quarters of a revolution.

Specifically, the pull rope block 42 and the rope fixing block 15 are respectively provided with a fixing mechanism 6, and the fixing mechanism 6 can complete the fixing and releasing of the tourniquet 5.

Specifically, the fixing mechanism 6 includes a screw 65 driven by a motor 64 to rotate and a moving block 61 matched with the screw 65, two ends of the moving block 61 are fixed with elastic arms 62 which can be opened to two sides, and the elastic arms 62 are fixed with hooks 63 which form acute angles with the elastic arms 62; when the elastic arms 62 are folded under the limit of the inner wall of the fixing mechanism 6, the hooks 63 are attached to each other and to the inner wall of the fixing mechanism 6.

Specifically, a blade capable of cutting off the tourniquet 5 is arranged above the hook claw 63 in the pull rope block 42.

Specifically, a baffle plate 11 is fixed above the storage cavity 12, and an opening formed by the baffle plate 11 and the storage cavity 12 and used for allowing the tourniquet 5 to pass through is close to one side of the air cavity 3.

Specifically, the hand rest 2 is provided with a groove 21 for placing the arm 51.

When the tourniquet is needed to be used, a patient places the arm 51 at the groove 21 of the hand rest 2, the hand rest 2 is driven to move along the inclined plane 14 when the arm 51 is pressed down, the arm 51 is contacted with the tourniquet 5, and the tourniquet 5 in the storage cavity is driven to rotate according to the thickness of the arm 51 until the tourniquet reaches a proper length.

The air pump 35 blows air into the air cavity 3, so that the piston 31 drives the rotary cone 32 to move towards the knotting cavity 13, and the first rod 33 and the second rod 34 move to the two sides of the tourniquet 5; the rotating cone 32 is then engaged with the threaded section 36, the rotating cone 32 rotates the first rod 33 and the second rod 34 three-quarters of a turn, and after the tourniquet 5 is wound around the first rod 33 and the second rod 34, the tourniquet 5 is threaded through the first rod 33 and into the space between the first rod 33 and the second rod 34, thereby forming a knotting hole.

At this time, the pneumatic rod 4 drives the rope threading rod 41 to move downwards, and the rope pulling block 42 fixes one end of the tourniquet 5, so that the contact area between the tourniquet 5 and the arm 51 is larger. When the string-threading rod 41 moves to the knotting cavity 13, the string-pulling rod 41 is located between the first rod 33 and the second rod 34 and contacts the rotating cone 32, the conical surface of the rotating cone 32 pushes the string-pulling rod 41 to move toward one end of the string-fixing block 15, and during the moving, the string-pulling block 42 passes through the knotting hole formed in the first rod 33 and the second rod 34 of the tourniquet 5. When the rope threading rod 41 contacts with the top point of the rotating cone 32, the hook claw in the rope fixing block 15 stretches out to hook the tourniquet 5 on the rope pulling block 42 and then shrink and fix, and then the fixing mechanism 6 on the rope pulling block 42 releases the tourniquet 5. The pneumatic rod 4 continues to move downwards, and the stay rope block 42 moves towards one end of the pneumatic rod 4 under the action of magnetic attraction and is separated from the knotting hole. When the air pressure rod 4 moves to the bottommost part, the stay rope block 42 is positioned at one side of the baffle 11, and the hook claw in the stay rope block 42 stretches out to hook the tourniquet 5 limited by the baffle 11 and then shrink and fix.

The air pump 35 pumps air to enable the rotating cone 32 to move into the air cavity 3, and after the first rod 33 and the second rod 34 are driven to be separated from the tourniquet 5, the air pressure rod 4 starts to move upwards, one end of the tourniquet 5 bound on the arm 51 is fixed on the rope fixing block 15, the other end of the tourniquet 5 is fixed on the rope pulling block 42, and the rope pulling block 42 moves upwards along with the air pressure rod 4 to tighten the tourniquet 5 on the arm 51. When tightening is performed to a certain extent, the blade above the hook claw in the pull rope block 42 cuts off the tourniquet 5, and tightening of the tourniquet 5 on one arm 51 is completed. When the pneumatic rod 4 returns to the vertex, the tourniquet 5, which is not used and is fixed by the pulling rope block 42, returns to the initial state. After the arm 51 is removed, the spring 23 pushes the push plate 22 to return the hand rest 2 to the initial position.

The foregoing has shown and described the basic principles, principal 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 embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made therein without departing from the spirit and scope of the invention, which is defined by the appended claims.

Claims

1. The utility model provides an automatic blood tourniquet drives, includes base (1) and swivelling joint tourniquet (5) on base (1), its characterized in that: the device comprises a base (1), wherein a storage cavity (12) for accommodating a tourniquet (5) is arranged at the bottom of the base (1), a pneumatic rod (4) which is fixedly connected with a rope penetrating rod (41) in a sliding manner is arranged at the top of the base (1) corresponding to the storage cavity (12), a hand placing frame (2) which is connected to the base (1) in a sliding manner is arranged between the pneumatic rod (4) and the storage cavity (12), and a through groove which can allow the rope penetrating rod (41) to pass through is formed in the hand placing frame (2); a knotting cavity (13) for knotting the tourniquet (5) is arranged between the hand rest (2) and the storage cavity (12), one side of the knotting cavity (13) is slidably connected with a rotating cone (32) which can be matched with the threading rod (41), the other side of the knotting cavity is provided with a rope fixing block (15) which corresponds to the rotating cone (32) and can fix the tourniquet (5), one end, far away from the rotating cone (32), of the threading rod (41) is provided with a rope pulling block (42) which can fix the tourniquet (5), and the rope pulling block (42) and the air pressure rod (4) are mutually attracted through magnetism; the utility model discloses a tourniquet, including a base (1), a rotary cone (32), a hand rest (2) is arranged on the inner wall of the air cavity (3), the air cavity (3) is close to an inner wall of one end of the knotting cavity (13) and is provided with a threaded section (36) matched with the rotary cone (32), a first rod (33) and a second rod (34) which can be wound around the tourniquet (5) are respectively fixed at two ends of the rotary cone (32), a push plate (22) which is horizontally moved is slidingly connected on the base (1) through a spring (23), the spring (23) is always in a compressed state, the hand rest (2) is arranged on the push plate (22) in a sliding manner, one end of the hand rest (2) is far away from the push plate (22) and is matched with an inclined plane (14) on the base (1), the tourniquet (5) is positioned between the first rod (33) and the second rod (34), the first rod (33) is shorter than the second rod (34), when the rotary cone (1) is slidingly connected with the push plate (22) through a spring (23), the rotary cone (32) is wound around the threaded section (33) and the rotary cone (3), the fixing mechanism (6) can fix and release the tourniquet (5).

2. An automatic blood-expelling tourniquet according to claim 1, wherein: the fixing mechanism (6) comprises a screw (65) driven by a motor (64) to rotate and a moving block (61) matched with the screw (65), two ends of the moving block (61) are fixedly provided with elastic arms (62) which can be opened to two sides, and the elastic arms (62) are fixedly provided with hooks (63) which form acute angles with the elastic arms (62); when the elastic arms (62) are folded under the limit of the inner wall of the fixing mechanism (6), the hook claws (63) are mutually attached and attached to the inner wall of the fixing mechanism (6).

3. An automatic blood-expelling tourniquet according to claim 2, wherein: a blade capable of cutting off the tourniquet (5) is arranged above the hook claw (63) in the stay cord block (42).

4. An automatic blood-expelling tourniquet according to claim 1, wherein: a baffle plate (11) is fixed above the storage cavity (12), and an opening formed by the baffle plate (11) and the storage cavity (12) for allowing the tourniquet (5) to pass through is close to one side of the air cavity (3).

5. An automatic blood-expelling tourniquet according to claim 1, wherein: the hand rest (2) is provided with a groove (21) for placing an arm (51).