Vein blood sampling equipment with needle convenient to replace

Abstract

The utility model discloses venous blood sampling equipment with a needle convenient to replace, and relates to the technical field of medical treatment. Comprising a supporting frame, the outer wall of the supporting frame is fixedly connected with a pipe frame, and the outer wall of the supporting frame is slidably connected with blood vessels; the outer wall of the suction assembly is fixedly connected with the inner wall of the tube frame, and the suction assembly is used for sucking air in the blood vessel; the outer wall of the replacement assembly is in threaded connection with the top of the blood vessel, and the replacement assembly is used for collecting blood; through the arrangement of the replacement assembly, the replacement assembly is convenient to disassemble and assemble, the equipment is convenient to clean and maintain, the service life of the equipment is prolonged, when the needle head is replaced, an operator can quickly replace the needle head body through a clamping mode of a hose and a circular ring, and complex operation steps are not needed; the efficiency in the blood sampling process is further improved, and the purpose of conveniently replacing the needle head of the vein blood sampling equipment is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical technology field, concretely relates to a kind of intravenous blood sampling equipment of needle head convenient to replace. BACKGROUND

[0002] In the medical field, intravenous blood sampling is a common and important diagnostic and therapeutic means. However, the existing intravenous blood sampling equipment has some deficiencies in the use process.

[0003] The traditional intravenous blood sampling equipment is more complex in replacing needle, which needs to consume more time and energy, which not only reduces the blood sampling efficiency, but also may increase the discomfort and waiting time of patients. Moreover, the complex needle replacement operation also brings certain work burden to medical staff. SUMMARY

[0004] In view of the deficiencies of the prior art, the utility model solves its technical problems by adopting the following technical scheme: an intravenous blood sampling equipment convenient to replace needle, comprising: a support frame, the outer wall of the support frame is fixedly connected with a pipe support, the outer wall of the support frame is slidingly connected with a blood vessel; a suction assembly, the outer wall of the suction assembly is fixedly connected with the inner wall of the pipe support, the suction assembly is used for sucking the air inside the blood vessel; a replacement assembly, the outer wall of the replacement assembly is threadedly connected with the top of the blood vessel, the replacement assembly is used for collecting blood; the replacement assembly comprises a pipe cover, the inner wall of the pipe cover is fixedly connected with a liquid inlet pipe, the inner wall of the pipe cover is fixedly connected with an air outlet pipe, the outer wall of the liquid inlet pipe is clamped with a hose through a circular ring, the material of the hose is soft material, and the outer wall of the circular ring is fixedly connected with the outer wall of the liquid inlet pipe, one end of the hose away from the liquid inlet pipe is fixedly connected with a needle body.

[0005] Preferably, the outer wall of the circular ring is clamped with the inner wall of the hose, the outer wall of the liquid inlet pipe is fixedly connected with a sealing ring, the material of the sealing ring is elastic material, and the top of the sealing ring is in contact with the side of the hose away from the needle body.

[0006] Preferably, the bottom of the sealing ring is fixedly connected with the top of the pipe cover, the inner wall of the pipe cover is threadedly connected with the outer wall of the blood vessel, and a threaded groove corresponding to the blood vessel is formed in the wall of the pipe cover.

[0007] Preferably, the suction assembly comprises an air shell, the inner wall of the air shell is slidingly connected with a piston, one side of the air shell away from the piston is fixedly connected with a connecting pipe, and the material of the connecting pipe is soft material.

[0008] Preferably, the side of the connecting pipe away from the air shell is clamped with the outer wall of the air outlet pipe, the outer wall of the air shell is fixedly connected with the inner wall of the pipe support, and the pipe support limits the position of the air shell.

[0009] The utility model discloses the beneficial effect is as follows:

[0010] 1. The utility model discloses a replace component, and the design of replace component is convenient to detach and install, is convenient to clean and maintain to equipment, prolongs the service life of equipment, when replacing needle, through the clamping mode of hose and ring, and the operator can replace needle body quickly, need not complicated operation step, further improve the efficiency in the blood sampling process.

[0011] 2. The utility model discloses a suction assembly, and through the cooperation of gas shell, piston and connecting pipe, negative pressure is produced, and stable power is provided for blood extraction, avoids the risk such as blood vessel injury that may be caused by unstable suction, and the close connection of pipe cover and blood vessel and the sealing effect of sealing ring effectively prevent blood leakage, reduce the risk of cross infection, improve the safety of blood sampling. DRAWINGS

[0012] Figure 1 It is the front view of the utility model;

[0013] Figure 2 It is the section view of the utility model;

[0014] Figure 3 It is the structure schematic view of the replace component of the utility model;

[0015] Figure 4 It is the structure schematic view of the suction assembly of the utility model.

[0016] In the drawing: 1, support frame;2, suction assembly;3, replace component;4, pipe support;5, blood vessel;31, pipe cover;32, liquid inlet pipe;33, gas outlet pipe;34, sealing ring;35, ring;36, hose;37, needle body;21, gas shell;22, piston;23, connecting pipe. DETAILED DESCRIPTION

[0017] The utility model will be further explained in detail in combination with the drawings and specific embodiment. The embodiment of the utility model is given for example and description, and is not exhaustive or limit the utility model to the disclosed form. Many modifications and changes are obvious to those skilled in the art. The embodiment is selected and described to better illustrate the principle and practical application of the utility model, and make those skilled in the art understand the utility model to design various embodiments with various modifications suitable for specific use. EMBODIMENT

[0018] Please refer to Figure 1 - Figure 4The utility model provides a technical scheme: a venous blood sampling equipment convenient for replacing needle head, it is including: support frame 1, the outer wall fixed connection of support frame 1 has pipe support 4, the outer wall sliding connection of support frame 1 has blood vessel 5, suction assembly 2, the outer wall fixed connection of suction assembly 2 with the inner wall of pipe support 4, suction assembly 2 is used for sucking the air in the inside of blood vessel 5, replacement assembly 3, the outer wall of replacement assembly 3 is connected with the top of blood vessel 5 with screw thread, and replacement assembly 3 is used for collecting blood, replacement assembly 3 includes pipe cover 31, the inner wall fixed connection of pipe cover 31 has liquid inlet pipe 32, the inner wall fixed connection of pipe cover 31 has air outlet pipe 33, the outer wall of liquid inlet pipe 32 is connected with hose 36 by round ring 35, and the outer wall of round ring 35 is fixedly connected with the outer wall of liquid inlet pipe 32, and the one end fixedly connected with needle head body 37 of hose 36 away from liquid inlet pipe 32, and liquid inlet pipe 32 is used for guiding blood to flow, and its outer wall fixedly connected round ring 35 provides support for the connection of hose 36, and hose 36 is connected on liquid inlet pipe 32 by the mode of being clamped with round ring 35, and this connection mode makes the installation and dismounting of hose 36 very convenient, and provides convenient way for the replacement of needle head.

[0019] The outer wall of round ring 35 is clamped with the inner wall of hose 36, the outer wall of liquid inlet pipe 32 is fixedly connected with sealing ring 34, the top of sealing ring 34 is in contact with the side of hose 36 away from needle head body 37, the bottom of sealing ring 34 is fixedly connected with the top of pipe cover 31, the inner wall of pipe cover 31 is connected with the outer wall of blood vessel 5 with screw thread, when needing to replace needle head, since hose 36 is clamped with liquid inlet pipe 32 through round ring 35, operating personnel only need to take down old needle head body 37 together with hose 36 from round ring 35, then clamp new needle head body 37 with hose 36 on round ring 35.

[0020] Suction assembly 2 includes air shell 21, the inner wall sliding connection of air shell 21 has piston 22, the side fixedly connected with connecting pipe 23 of air shell 21 away from piston 22, the side of connecting pipe 23 away from air shell 21 is clamped with the outer wall of air outlet pipe 33, the outer wall of air shell 21 is fixedly connected with the inner wall of pipe support 4, operating personnel slide in air shell 21 by pulling piston 22, to generate negative pressure in the inside of air shell 21.

[0021] Working principle:

[0022] The equipment is mainly composed of support frame 1, suction assembly 2 and replacement assembly 3.

[0023] Support frame 1 plays an important supporting and fixing role in the equipment, and the pipe support 4 fixedly connected with the outer wall thereof provides a stable placement position for suction assembly 2, to ensure that suction assembly 2 can maintain a stable state during blood sampling, and meanwhile, the outer wall of support frame 1 is slidingly connected with blood vessel 5, so that blood vessel 5 has an adjustment space, to provide greater convenience for blood sampling operation.

[0024] The suction assembly 2 is composed of a gas shell 21, a piston 22 and a connecting pipe 23. During blood sampling, the operator slides the piston 22 in the gas shell 21 to generate negative pressure inside the gas shell 21. The outer wall of the gas shell 21 is fixedly connected with the inner wall of the pipe frame 4, which ensures the stability of the suction assembly 2 in the device and prevents it from being easily moved by external force. One side of the connecting pipe 23 is connected with the gas shell 21, and the other side is connected with the air outlet pipe 33 of the replacement assembly 3. Through this connection, the negative pressure generated in the gas shell 21 can be smoothly transmitted to the replacement assembly 3, providing power for blood extraction.

[0025] The replacement assembly 3 is the key part for collecting blood, mainly including a pipe cover 31, a liquid inlet pipe 32, an air outlet pipe 33, a sealing ring 34, a circular ring 35, a hose 36 and a needle body 37. The inner wall of the pipe cover 31 is connected with the outer wall of the blood vessel 5 through threads. This connection not only makes the connection between the pipe cover 31 and the blood vessel 5 more compact and effectively prevents blood leakage, but also facilitates the installation and disassembly between the replacement assembly 3 and the blood vessel 5. The liquid inlet pipe 32 is used to guide blood flow. The outer wall of the circular ring 35 fixedly connected with the liquid inlet pipe 32 provides support for the connection of the hose 36. The hose 36 is connected with the liquid inlet pipe 32 through the clamping of the circular ring 35. This connection makes the installation and disassembly of the hose 36 very convenient, providing a convenient way for needle replacement. The sealing ring 34 is located between the hose 36 and the liquid inlet pipe 32, which plays a good sealing role. The air outlet pipe 33 is clamped with the connecting pipe 23 of the suction assembly 2, so that the negative pressure in the gas shell 21 can be transmitted to the inside of the pipe cover 31, thereby prompting the blood to flow into the blood collection container through the liquid inlet pipe 32 and the hose 36. The needle body 37 is connected with one end of the hose 36 and is used to pierce the blood vessel 5 to collect blood.

[0026] When the needle needs to be replaced, since the hose 36 is clamped with the liquid inlet pipe 32 through the circular ring 35, the operator only needs to take off the old needle body 37 together with the hose 36 from the circular ring 35, and then clamp the new needle body 37 with the hose 36 on the circular ring 35. This replacement method is simple and fast, greatly improving the efficiency and safety during blood sampling.

[0027] Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art and related fields without creative labor should belong to the scope of protection of the present application. The structures, devices and operation methods not specifically described and explained in the present application, if not specially described and limited, are implemented according to the conventional means in the art.

Claims

1. A venous blood sampling device facilitating needle replacement, characterized in that, Include: Support frame (1), the outer wall of the support frame (1) is fixedly connected with pipe frame (4), the outer wall of the support frame (1) is slidably connected with blood vessel (5); Suction assembly (2), the outer wall of the suction assembly (2) is fixedly connected with the inner wall of pipe frame (4), and the suction assembly (2) is used for sucking air inside blood vessel (5); Replacement assembly (3), the outer wall of the replacement assembly (3) is screwedly connected with the top of blood vessel (5), and the replacement assembly (3) is used for collecting blood; The replacement assembly (3) includes a tube cover (31), the inner wall of the tube cover (31) is fixedly connected with a liquid inlet pipe (32), the inner wall of the tube cover (31) is fixedly connected with an air outlet pipe (33), the outer wall of the liquid inlet pipe (32) is clamped with a hose (36) through a circular ring (35), and the outer wall of the circular ring (35) is fixedly connected with the outer wall of the liquid inlet pipe (32), one end of the hose (36) away from the liquid inlet pipe (32) is fixedly connected with a needle body (37).

2. The venous blood sampling device of claim 1, wherein: The outer wall of the circular ring (35) is clamped with the inner wall of the hose (36), the outer wall of the liquid inlet pipe (32) is fixedly connected with a sealing ring (34), and the top of the sealing ring (34) is in contact with the side of the hose (36) away from the needle body (37).

3. The venous blood sampling device of claim 2, wherein: The bottom of the sealing ring (34) is fixedly connected with the top of the tube cover (31), and the inner wall of the tube cover (31) is screwedly connected with the outer wall of blood vessel (5).

4. The venous blood sampling device of claim 1, wherein: The suction assembly (2) includes a gas shell (21), the inner wall of the gas shell (21) is slidably connected with a piston (22), and the side of the gas shell (21) away from the piston (22) is fixedly connected with a connecting pipe (23).

5. The venous blood sampling device of claim 4, wherein: The side of the connecting pipe (23) away from the gas shell (21) is clamped with the outer wall of the air outlet pipe (33).

6. The venous blood sampling device of claim 4, wherein: The outer wall of the gas shell (21) is fixedly connected with the inner wall of the pipe frame (4).

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