A multi-point limb tourniquet

Abstract

The application provides a multi-point limb hemostat, which comprises an outer ring shell, a plurality of pressing mechanisms, an inner ring pressure belt, a tightening mechanism and a fixing mechanism; the plurality of pressing mechanisms control the displacement of hemostatic heads in the pressing mechanisms to the inner ring pressure belt, the hemostatic heads are fixed to the inner ring pressure belt through the tightening mechanism, and the inner ring pressure belt is tightened through the tightening mechanism to achieve hemostasis; the application can ensure multi-point hemostasis, accurately perform hemostasis on hemostasis points, and avoid the structure of the hemostat from pressing other positions of the limb to cause other symptoms.

Description

Technical Field

[0001] This invention relates to hemostatic devices, and more particularly to a multi-point limb hemostatic device. Background Technology

[0002] Hemostatic devices are needed to stop bleeding in cases of large skin wounds or certain surgeries requiring limb hemostasis. Currently, the main types of hemostatic devices are bandage compression hemostasis and instrumental hemostasis. Bandage compression hemostasis involves wrapping a bandage or gauze around the limb and tightening it to stop the bleeding. However, because the pressure can also compress blood vessels in other locations, it can cause local congestion, leading to swelling of the extremities and other complications. Instrumental hemostasis often uses pneumatic components to apply pressure, but it also suffers from the same problems.

[0003] A review of publicly available technical solutions reveals that, for example, CN209916112U discloses a hemostatic device comprising two semi-ring shells, each with a hinged end and an open end, and a strip-shaped air bladder fixed to the inner side of the device's outer frame, having an inflation port and an exhaust port. By fastening the outer frame of the device to the wound site on the limb and inflating the strip-shaped air bladder, hemostasis can be achieved by applying pressure to the wound, making it convenient to use and disassemble. Another typical prior art, CN210962177U, discloses a limb hemostatic device with a circular opening as the main fixing ring. The first method, using a compression band in conjunction with a main fixation ring, applies local pressure to the patient's limb to stop bleeding, avoiding compression of other blood vessels that could lead to bruising and other complications. While the first method can stop bleeding, it only allows for hemostasis at one point, failing to meet the needs of patients requiring multi-point hemostasis. The second method, using a compression band, compresses a large area around the point requiring hemostasis, potentially causing other complications. Therefore, ensuring precise hemostasis at multiple points while avoiding compression of other parts of the limb is the direction that current hemostatic devices need improvement. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of current methods by proposing a multi-point limb hemostat.

[0005] The present invention adopts the following technical solution:

[0006] A multi-point limb hemostat includes an outer ring housing, multiple pressing mechanisms, an inner ring pressure band, a tightening mechanism, and a fixing mechanism;

[0007] The plurality of pressing mechanisms are installed inside the outer ring housing. Each pressing mechanism includes a pressing column, a button, a pushing ring rod, a first spring, and a limiting rod disposed on the pressing column. The pressing column is fixedly installed inside the outer ring housing. The button is connected to the pushing ring rod. The first spring is installed on the pushing ring rod, with one end of the first spring fixedly connected to the pushing ring rod and the other end fixedly installed inside the outer ring housing. The limiting rod is fixedly installed on the surface of the pressing column. The pushing ring rod is disposed above the outer surface of the pushing column and can slide up and down along the pressing column.

[0008] The pressing mechanism further includes a rotating ring rod, a second spring, a fixed ring rod, a third spring, and a hemostatic head. The rotating ring rod is located below the outer surface of the pushing column and can slide up and down and rotate left and right along the pressing column. The second spring is mounted on the rotating ring rod, with one end fixedly connected to the rotating ring rod and the other end fixedly mounted inside the outer ring housing. The fixed ring rod is located below the rotating ring rod and can slide up and down along the pressing column. A groove is provided below the fixed ring rod. One end of the third spring is connected to the groove of the fixed ring rod, and the other end is connected to the hemostatic head. The hemostatic head is located below the fixed ring rod and has a groove opening.

[0009] The multi-point limb hemostat uses an actuation mechanism on the outer ring shell to move the hemostatic head in the actuation mechanism to the inner ring pressure band. The hemostatic head is fixed on the inner ring pressure band by a fixing mechanism. The inner ring pressure band is tightened by a tightening mechanism so that the hemostatic head presses on the hemostatic site to stop bleeding.

[0010] Furthermore, the fixing mechanism is disposed on the inner ring pressure belt, and the fixing mechanism includes a sliding toothed belt, a limiting toothed belt, a first sliding rod, a toggle rod, and a toothed belt hole; one end of the sliding toothed belt is connected to the inner ring pressure belt, and the other end is connected to the first sliding rod; the toothed belt hole is disposed inside the inner ring pressure belt, and the first sliding rod is disposed inside the toothed belt hole; the limiting toothed belt is disposed below the sliding toothed belt near the toothed belt hole, and the toggle rod is fixedly installed on the limiting toothed belt;

[0011] Furthermore, the tightening mechanism is disposed on the inner ring pressure band, and the inner ring pressure band has a circular opening at the corresponding hemostatic head position. The tightening mechanism includes a second sliding rod, a tightening band hole, and limiting plates. The tightening band hole is disposed on one side of the circular opening, and the second sliding rod is disposed in the tightening band hole and can slide along the tightening band hole. The second sliding rod is fixedly connected to a plurality of limiting plates, and the number of limiting plates is equal to the number of circular openings.

[0012] Furthermore, the outer ring housing and the inner ring pressure band are fixedly connected at a position below the fixing mechanism.

[0013] The beneficial effects achieved by this invention are:

[0014] This invention is equipped with multiple pressing mechanisms. Medical staff can control the pressing mechanisms according to the number and location of the hemostasis points required by the patient, so that the required hemostatic head falls onto the inner ring pressure band. By setting a sliding toothed band, the hemostatic head on the inner ring pressure band is tightened to stop bleeding. This can avoid the inner ring pressure band compressing other parts of the limb during the hemostasis process, thus achieving precise hemostasis. Attached Figure Description

[0015] The invention will be further understood from the following description taken in conjunction with the accompanying drawings. The components in the drawings are not necessarily drawn to scale, but rather the emphasis is on illustrating the principles of the embodiments. In different views, the same reference numerals designate corresponding parts.

[0016] Figure 1 This is a schematic diagram of the overall structure of the device.

[0017] Figure 2 This is a schematic diagram of the pressing mechanism.

[0018] Figure 3 This is a schematic diagram of the unfolded structure of the internal planar portion of the inner ring pressure belt.

[0019] Figure 4 This is a schematic diagram of the fixed mechanism.

[0020] The labels in the diagram mean: 1-Push-up mechanism, 2-Outer ring housing, 3-Inner ring pressure band, 4-Tightening mechanism, 5-Fixing mechanism, 101-Button, 102-First spring, 103-Push ring rod, 104-Push-up column, 105-Limiting rod, 106-Rotating ring rod, 107-Second spring, 108-Fixing ring rod, 109-Third spring, 110-Hemostatic head, 111-Push ring rod groove, 112-Rotating ring rod high groove, 113-Rotating ring rod low groove, 114-Hemostatic head groove, 301-Inner ring pressure band ring opening, 401-Second sliding rod, 402-Limiting piece, 403-Tightening band hole, 501-Toothed band hole, 502-Sliding toothed band, 504-Limiting toothed band, 505-Actuating rod. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to its embodiments. It should be understood that the specific embodiments described herein are only for explaining the present invention and are not intended to limit the present invention. Other systems, methods, and / or features of this embodiment will become apparent to those skilled in the art after reviewing the following detailed description. It is intended that all such additional systems, methods, features, and advantages are included within this specification, are included within the scope of the present invention, and are protected by the appended claims. Further features of the disclosed embodiments are described in the following detailed description, and these features will be apparent from the following detailed description.

[0022] In the accompanying drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components. In the description of the present invention, it should be understood that if terms such as "upper," "lower," "left," "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting the present patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0023] Example 1.

[0024] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, this embodiment provides a multi-point limb hemostat, including an outer ring housing, multiple pressing mechanisms, an inner ring pressure band, a tightening mechanism, and a fixing mechanism;

[0025] The plurality of pressing mechanisms are installed inside the outer ring housing. Each pressing mechanism includes a pressing column, a button, a pushing ring rod, a first spring, and a limiting rod disposed on the pressing column. The pressing column is fixedly installed inside the outer ring housing. The button is connected to the pushing ring rod. The first spring is installed on the pushing ring rod, with one end of the first spring fixedly connected to the pushing ring rod and the other end fixedly installed inside the outer ring housing. The limiting rod is fixedly installed on the surface of the pressing column. The pushing ring rod is disposed above the outer surface of the pushing column and can slide up and down along the pressing column.

[0026] The pressing mechanism further includes a rotating ring rod, a second spring, a fixed ring rod, a third spring, and a hemostatic head. The rotating ring rod is located below the outer surface of the pushing column and can slide up and down and rotate left and right along the pressing column. The second spring is mounted on the rotating ring rod, with one end fixedly connected to the rotating ring rod and the other end fixedly mounted inside the outer ring housing. The fixed ring rod is located below the rotating ring rod and can slide up and down along the pressing column. A groove is provided below the fixed ring rod. One end of the third spring is connected to the groove of the fixed ring rod, and the other end is connected to the hemostatic head. The hemostatic head is located below the fixed ring rod and has a groove opening.

[0027] The multi-point limb hemostat uses an actuation mechanism on the outer ring shell to move the hemostatic head in the actuation mechanism to the inner ring pressure band. The hemostatic head is fixed on the inner ring pressure band by a fixing mechanism. The inner ring pressure band is tightened by a tightening mechanism so that the hemostatic head presses on the hemostatic site to stop bleeding.

[0028] The fixing mechanism is disposed on the inner ring pressure belt, and the fixing mechanism includes a sliding toothed belt, a limiting toothed belt, a first sliding rod, a toggle rod, and a toothed belt hole; one end of the sliding toothed belt is connected to the inner ring pressure belt, and the other end is connected to the first sliding rod; the toothed belt hole is disposed inside the inner ring pressure belt, and the first sliding rod is disposed inside the toothed belt hole; the limiting toothed belt is disposed below the sliding toothed belt near the toothed belt hole, and the toggle rod is fixedly installed on the limiting toothed belt;

[0029] The tightening mechanism is disposed on the inner ring pressure band, and the inner ring pressure band has a circular opening at the corresponding hemostatic head position. The tightening mechanism includes a second sliding rod, a tightening band hole, and limiting plates. The tightening band hole is disposed on one side of the circular opening, and the second sliding rod is disposed in the tightening band hole and can slide along the tightening band hole. The second sliding rod is fixedly connected to a plurality of limiting plates, and the number of limiting plates is equal to the number of circular openings.

[0030] The outer ring housing and the inner ring pressure band are fixedly connected at a position below the fixing mechanism;

[0031] The pushing ring rod has a groove, which is located at the limiting rod to prevent the limiting rod from obstructing the pushing ring rod when it moves up and down; the rotating ring rod has a high groove and a low groove, and the vertical distance D1 between the high groove and the low groove satisfies:

[0032] D1 = D2;

[0033] D2 is the vertical distance from the groove of the hemostat head to the tightening band opening on the corresponding inner ring pressure band;

[0034] When this device is needed to stop bleeding in a patient, first, place the device on the limb where bleeding needs to be stopped. The medical staff presses the corresponding button according to the area where bleeding needs to be stopped. Pressing the button pushes the circular rod, causing it to slide downwards along the pressing column until the bottom of the pushing rod reaches the bottom of the limiting rod. At this point, the rotating rod rotates along the limiting rod due to the spring force of the second spring. The medical staff then releases the button, and the pushing rod, under the spring force of the first spring, slides upwards along the pressing column. The rotating rod slides until the limiting rod is precisely engaged at the high groove position of the rotating rod, stopping its rotation. At this point, the hemostatic port moves downwards into the circular opening of the inner ring pressure band. The medical staff then moves the third sliding rod to allow the limiting piece to enter the groove of the corresponding hemostatic port, ensuring that the hemostatic port can move together with the inner ring pressure band. Finally, the medical staff moves the second sliding rod to tighten the inner ring pressure band, bringing the upper hemostatic port closer to the area where bleeding needs to be stopped, thus achieving hemostasis.

[0035] When the device needs to be retrieved after hemostasis is completed, first move one end of the actuating rod to move the limiting toothed band towards the outer ring housing until the limiting toothed band separates from the sliding toothed band; move the second sliding rod back to its original position to widen the inner ring pressure band to its original position; move the third sliding rod back to its original position to move the limiting piece out of the groove of the hemostatic port. At this time, press the button corresponding to the used hemostatic port. When the button is pressed, push the ring rod to drive the rotating ring rod to slide downward along the pressing column until the bottom end of the pushing ring rod moves to the bottom end of the limiting rod. At this time, the rotating ring rod is rotated along the direction of the limiting rod by the elastic force of the second spring. At this time, the medical staff releases the button, and the pushing ring rod is pushed upward along the pressing column by the elastic force of the first spring. The rotating ring rod slides until the limiting rod is just stuck at the low groove position of the rotating ring rod and stops rotating. Thus, the pushing ring rod and the rotating ring rod return to their original positions. The hemostatic port can also return to its original position by the elastic force of the third spring.

[0036] In this embodiment, the required hemostatic head is moved onto the inner ring pressure band by pressing mechanism, the hemostatic head is fixed onto the inner ring pressure band by fixing mechanism, and the inner ring pressure band is tightened by tightening mechanism to achieve hemostasis. This can achieve multi-point hemostasis while avoiding the inner ring pressure band compressing other parts of the limb.

[0037] The content disclosed above is only a preferred and feasible embodiment of the present invention, and is not intended to limit the scope of protection of the present invention. Therefore, all equivalent technical changes made based on the content of the present invention specification and drawings are included within the scope of protection of the present invention. Furthermore, the elements therein can be updated as technology develops.

Claims

1. A multi-point limb hemostatic device, characterized in that, It includes an outer ring housing, multiple pressing mechanisms, an inner ring pressure band, a tightening mechanism, and a fixing mechanism; The plurality of pressing mechanisms are installed inside the outer ring housing. Each pressing mechanism includes a pressing column and a button, a pushing ring rod, a first spring, and a limiting rod disposed on the pressing column. The pressing column is installed inside the outer ring housing. The button is connected to the pushing ring rod. The first spring is installed on the pushing ring rod, with one end of the first spring fixedly connected to the pushing ring rod and the other end fixedly installed inside the outer ring housing. The limiting rod is fixedly installed on the surface of the pressing column. The pushing ring rod is disposed above the outer surface of the pressing column and can slide up and down along the pressing column. The pressing mechanism further includes a rotating ring rod, a second spring, a fixed ring rod, a third spring, and a hemostatic head. The rotating ring rod is located below the outer surface of the pressing column and can slide up and down and rotate left and right along the pressing column. The second spring is mounted on the rotating ring rod, with one end fixedly connected to the rotating ring rod and the other end fixedly mounted inside the outer ring housing. The fixed ring rod is located below the rotating ring rod and can slide up and down along the pressing column. A groove is provided below the fixed ring rod. One end of the third spring is connected to the groove of the fixed ring rod, and the other end is connected to the hemostatic head. The hemostatic head is located below the fixed ring rod and has a groove opening. The multi-point limb hemostat uses an actuation mechanism on the outer ring shell to move the hemostatic head in the actuation mechanism to the inner ring pressure band. The hemostatic head is fixed on the inner ring pressure band by a fixing mechanism. The inner ring pressure band is tightened by a tightening mechanism so that the hemostatic head presses on the hemostatic site to stop bleeding. The fixing mechanism is disposed on the inner ring pressure belt, and the fixing mechanism includes a sliding toothed belt, a limiting toothed belt, a first sliding rod, a toggle rod, and a toothed belt hole; one end of the sliding toothed belt is connected to the inner ring pressure belt, and the other end is connected to the first sliding rod; the toothed belt hole is disposed inside the inner ring pressure belt, and the first sliding rod is disposed inside the toothed belt hole; the limiting toothed belt is disposed below the sliding toothed belt near the toothed belt hole, and the toggle rod is fixedly installed on the limiting toothed belt; The tightening mechanism is disposed on the inner ring pressure band, and the inner ring pressure band has a circular opening at the corresponding hemostatic head position. The tightening mechanism includes a second sliding rod, a tightening band hole, and a limiting piece. The tightening band hole is disposed on one side of the circular opening. The second sliding rod is disposed in the tightening band hole and can slide along the tightening band hole. The second sliding rod is fixedly connected to a plurality of limiting pieces, and the number of limiting pieces is equal to the number of circular openings.

2. The multi-point limb hemostatic device according to claim 1, characterized in that, The outer ring housing and the inner ring pressure belt are fixedly connected at a position below the fixing mechanism.

Images