CN221903852U - Medical blood sampling auxiliary device - Google Patents

Abstract

The application provides a medical blood sampling auxiliary device, which relates to the technical field of medical instruments and comprises a filling cushion block and a protective cushion, wherein a positioning notch is formed in the top of one end of the filling cushion block, the positioning notch is an arc-shaped groove, a containing notch is formed in the inner wall of the bottom of one end of the positioning notch, a supporting ring is arranged at the top of one end of the filling cushion block, a limiting ring is arranged in the supporting ring, a first notch is formed in one side of the supporting ring, and a second notch is formed in the other side of the supporting ring; a rolling sleeve is arranged in one end of the positioning notch, and a pin roll is arranged in the rolling sleeve; the technical key points are as follows: the tourniquet has the advantages that one end of the tourniquet bypasses a limb of a patient, the top of the filling cushion block and the other end of the tourniquet are knotted, the degree of pulling the skin surface is reduced by means of the inclined planes on two sides of the bottom of the filling cushion block and the protection pad matched with the bottom of the filling cushion block, the knotting speed and blood sampling efficiency of two ends can be guaranteed, and the tourniquet is simple in structure and easy to use.

Description

Medical blood sampling auxiliary device

Technical Field

The utility model relates to the technical field of medical equipment, in particular to a medical blood sampling auxiliary device.

Background Art

In modern medicine, collecting venous blood from patients for testing is a necessary method for examining and treating some diseases, and blood collection from the elbow vein is a relatively common method. There are many children and patients with mental illness among the patients, and they cannot cooperate with medical staff in blood collection like normal adult patients. At the same time, due to blood collection or related needs, it is inevitable for medical staff to collect blood samples through veins and arteries. Therefore, blood collection auxiliary devices are needed during blood collection, which enable medical staff to accurately find blood vessels and perform needle puncture to improve blood collection efficiency and reduce patients' pain.

The patent document with publication number CN212438748U discloses a medical comprehensive blood sampling auxiliary device which is provided with a buckle, a first Velcro, a second Velcro, a one-way valve, a cross tube, a first airbag, a second airbag, an exhaust pipe, a pressure relief valve and an air inlet pipe, so that the patient's arm can be prevented from being on the buckle. Then the operator can wrap the buckle around the patient's arm through the first Velcro and the second Velcro, and continuously squeeze the first airbag to inflate the second airbag to squeeze the patient's arm blood vessels, thereby replacing the tourniquet and avoiding the problem of excessive tightening and causing pain to the patient due to the visualization of blood vessels by means of a tourniquet.

However, in the process of implementing the above technical solution, it is found that the above technical solution has the following technical problems:

Compared with the traditional tourniquet binding method, the airbag pressurization method of the existing blood collection auxiliary device can solve the problem of pain caused by the tourniquet tightening the skin. However, since it is necessary to use Velcro to wrap the strap around the patient's arm and complete the binding work by injecting air into the airbag, the process steps are relatively cumbersome and not conducive to efficient blood collection.

Utility Model Content

In order to overcome the shortcomings of existing blood collection auxiliary devices, such as the need to wrap the tourniquet around the patient's arm with Velcro and complete the binding work by injecting air into the airbag, and the process steps are relatively cumbersome and not conducive to efficient blood collection, the embodiment of the present application provides a medical blood collection auxiliary device, which allows one end of the tourniquet to pass around the patient's limb and is tied with the other end of the tourniquet on the top of the filling pad. By means of the inclined surfaces on both sides of the bottom of the filling pad and the protective pad adapted to the bottom of the filling pad, the degree of pulling of the skin surface is reduced, thereby avoiding the patient from feeling pain when the tourniquet is tied. The device has a simple structure and is easy to use.

The technical solution adopted by the embodiment of the present application to solve the technical problem is:

A medical blood sampling auxiliary device comprises a filling pad and a protective pad, wherein a support ring is arranged on the top of one end of the filling pad, a limit ring is arranged inside the support ring, and the binding points at both ends of the tourniquet are located on the top of the filling pad.

In one possible implementation, a first notch is machined inside one side of the support ring, and a second notch is machined inside the other side of the support ring. The inner diameter of the second notch is larger than the inner diameter of the limiting ring. The interior of the first notch is connected to the interior of the second notch, and the limiting ring is embedded in the interior of the first notch.

In a possible implementation, the limiting ring is made of plastic material, and the tourniquet is interference fit inside the limiting ring, and friction between the inner wall of the limiting ring and the outer wall of the tourniquet is used to provide resistance to the movement of the tourniquet inside the limiting ring.

In a possible implementation, a positioning notch is processed on the top of one end of the filling block, and the positioning notch is an arc-shaped groove.

In a possible implementation, a receiving slot is processed at the bottom inner wall of one end of the positioning slot, the bottom outer wall of the support ring and the inner wall of the receiving slot are processed into one piece, and the support ring is arranged at an angle.

In a possible implementation, the protective pad is made of latex material, the cross-section of the positioning notch is an isosceles trapezoid, and the top of the protective pad is matched with the bottom of the filling pad.

In a possible implementation, a rolling sleeve is disposed inside one end of the positioning slot, a pin is disposed inside the rolling sleeve, and both ends of the pin are respectively pin-connected inside the positioning slot.

In a possible implementation, the surfaces around the rolling sleeve are all concave toward the center of the axis, and the curvature of the concave part is the same as the curvature of the inner wall at the bottom of the positioning notch.

In summary, the present invention includes at least one of the following beneficial technical effects:

1. By making one end of the tourniquet go around the patient's limbs and tying a knot with the other end of the tourniquet on the top of the padding block, the skin surface is pulled less by the inclined surfaces on both sides of the bottom of the padding block and the protective pad adapted to the bottom of the padding block, thus avoiding the pain of the patient when the tourniquet is tied. The structure is simple and easy to use.

2. By arranging a roller sleeve that rolls around a pin shaft inside one end of the positioning notch, when one end of the tourniquet is passed over the top of the roller sleeve, the movable characteristics of the roller sleeve can be used to reduce the moving resistance of one end of the tourniquet during the traction process when the two ends of the tourniquet are tied and knotted on the top of the filling pad, thereby ensuring the smoothness of the tying and knotting work.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 is a schematic diagram of the overall structure of the utility model;

FIG2 is a schematic diagram of the connection structure of the limit ring and the support ring of the utility model;

FIG. 3 is an exploded view of the present invention.

Description of the drawings: 1. Filling pad; 2. Protective pad; 3. Support ring; 4. Limiting ring; 5. Tourniquet; 6. Rolling sleeve; 7. Pin; 8. Storage slot; 9. Positioning slot; 10. First slot; 11. Second slot.

DETAILED DESCRIPTION

The technical solution in the embodiment of the present application is to solve the problems of the above-mentioned background technology, and the overall idea is as follows:

Embodiment 1:

This embodiment introduces a specific structure of a medical blood sampling auxiliary device, as shown in FIGS. 1 to 3, comprising a filling pad 1 and a protective pad 2, a support ring 3 is arranged on the top of one end of the filling pad 1, a limit ring 4 is arranged inside the support ring 3, a first notch 10 is machined inside one side of the support ring 3, and a second notch 11 is machined inside the other side of the support ring 3;

Among them, the inner diameter of the second notch 11 is larger than the inner diameter of the limiting ring 4, the interior of the first notch 10 is connected to the interior of the second notch 11, and the limiting ring 4 made of plastic material is embedded in the interior of the first notch 10, so that the tourniquet 5 is interference-fitted inside the limiting ring 4, and the friction between the inner wall of the limiting ring 4 and the outer wall of the tourniquet 5 can be used to provide resistance to the movement of the tourniquet 5 inside the limiting ring 4, so that medical personnel can carry the filling pad 1 when using the tourniquet 5;

Secondly, for convenience, the binding points at both ends of the tourniquet 5 are located at the top of the filling pad 1. As shown in FIG. 1 , a positioning notch 9 is processed at the top of one end of the filling pad 1. Because the positioning notch 9 is an arc-shaped groove, when the two ends of the tourniquet 5 are bound at the top of the filling pad 1, the binding point can be restricted from slipping from the top of the filling pad 1 to both sides;

Furthermore, in order to make the binding points at both ends of the tourniquet 5 fit more closely to the top of the filling pad 1, as shown in Figure 2, a receiving slot 8 is processed at the bottom inner wall of one end of the positioning slot 9. By processing the bottom outer wall of the support ring 3 and the inner wall of the receiving slot 8 into one piece and tilting the support ring 3, the tourniquet 5 can pass through the top of one end of the positioning slot 9.

Furthermore, in order to reduce the pain when the bottom of the filling pad 1 contacts the patient's skin, as shown in Figure 2, the protective pad 2 is made of latex material, and the cross-section of the positioning groove 9 is an isosceles trapezoid. By making the top of the protective pad 2 fit the bottom of the filling pad 1, when the bottom of the filling pad 1 sinks into the patient's skin, the inclined parts on both sides of the bottom of the filling pad 1 can be used to reduce the degree of pulling of the skin surface.

By adopting the above technical solution:

The above design processes the positioning notch 9 on the top of the filling pad 1, so that the support ring 3 and the receiving notch 8 on the bottom inner wall of one end of the positioning notch 9 are processed into one piece. After the tourniquet 5 passes through the second notch 11 inside the support ring 3, the friction between the inner wall of the limiting ring 4 and the outer wall of the tourniquet 5 can provide resistance to the movement of the tourniquet 5 inside the limiting ring 4, so that the medical staff can carry the filling pad 1 when using the tourniquet 5.

At the same time, when the tourniquet 5 is tied to the patient's limbs, one end of the tourniquet 5 is passed around the patient's limbs and tied with the other end of the tourniquet 5 at the top of the filling pad 1. The positioning slot 9 can limit the knotting point from slipping from the top of the filling pad 1 to both sides, and with the help of the inclined surfaces on both sides of the bottom of the filling pad 1 and the protective pad 2 adapted to the bottom of the filling pad 1, the degree of pulling on the skin surface is reduced, thereby avoiding the patient from feeling pain when the tourniquet 5 is tied, and ensuring the blood collection efficiency and effect.

Embodiment 2:

Based on Example 1, this example introduces the specific structure of the positioning notch 9. A rolling sleeve 6 is disposed inside one end of the positioning notch 9, and a pin shaft 7 is disposed inside the rolling sleeve 6.

By connecting the two ends of the pin shaft 7 to the inside of the positioning notch 9 in a pin-connected manner, the roller sleeve 6 can be rotated outside the pin shaft 7.

At the same time, in order to ensure the fitting effect between one end of the tourniquet 5 and the surface of the filling pad 1, as shown in Figures 2 and 3, the surfaces around the rolling sleeve 6 are all concave toward the center of the axis, and the curvature of the concave part is the same as the curvature of the inner wall at the bottom of the positioning slot 9. When one end of the tourniquet 5 is passed around the top of the rolling sleeve 6, the rolling sleeve 6 can roll outside the pin 7, thereby reducing the movement resistance of one end of the tourniquet 5 during the traction process.

By adopting the above technical solution:

The above-mentioned design arranges a roller sleeve 6 that rolls around the pin shaft 7 inside one end of the positioning slot 9. When one end of the tourniquet 5 is passed over the top of the roller sleeve 6, the movable characteristics of the roller sleeve 6 can be used to reduce the movement resistance of one end of the tourniquet 5 during the traction process when the two ends of the tourniquet 5 are tied and knotted on the top of the filling pad 1, thereby ensuring the smoothness of the tying and knotting work.

Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims (8)

1. A medical blood sampling auxiliary device, comprising: Filling pad (1); A protective pad (2) arranged at the bottom of the filling pad (1); A support ring (3) is provided at the top of one end of the filling pad (1), a limit ring (4) is provided inside the support ring (3), and the binding points at both ends of the tourniquet (5) are located at the top of the filling pad (1). 2. A medical blood sampling auxiliary device according to claim 1, characterized in that: a first notch (10) is processed inside one side of the support ring (3), and a second notch (11) is processed inside the other side of the support ring (3), and the inner diameter of the second notch (11) is larger than the inner diameter of the limiting ring (4); The interior of the first notch (10) is connected to the interior of the second notch (11), and the limiting ring (4) is embedded in the interior of the first notch (10). 3. A medical blood sampling auxiliary device as described in claim 1, characterized in that: the limiting ring (4) is made of plastic material, and the tourniquet (5) is interference fit inside the limiting ring (4), and the friction between the inner wall of the limiting ring (4) and the outer wall of the tourniquet (5) is used to provide resistance for the movement of the tourniquet (5) inside the limiting ring (4). 4. A medical blood sampling auxiliary device as described in claim 1, characterized in that a positioning notch (9) is processed on the top of one end of the filling pad (1), and the positioning notch (9) is an arc-shaped groove. 5. A medical blood sampling auxiliary device as described in claim 4, characterized in that: a receiving slot (8) is processed on the bottom inner wall of one end of the positioning slot (9), the bottom outer wall of the support ring (3) and the inner wall of the receiving slot (8) are processed into one piece, and the support ring (3) is arranged at an angle. 6. A medical blood sampling auxiliary device as described in claim 4, characterized in that: the protective pad (2) is made of latex material, the cross-section of the positioning groove (9) is an isosceles trapezoid, and the top of the protective pad (2) is adapted to the bottom of the filling pad (1). 7. A medical blood sampling auxiliary device as described in claim 4, characterized in that: a roller sleeve (6) is arranged inside one end of the positioning groove (9), a pin shaft (7) is arranged inside the roller sleeve (6), and both ends of the pin shaft (7) are respectively pin-connected to the inside of the positioning groove (9). 8. A medical blood sampling auxiliary device as described in claim 7, characterized in that the surfaces around the roller sleeve (6) are all concave toward the center of the axis, and the curvature of the concave part is the same as the curvature of the inner wall at the bottom of the positioning groove (9).