Medical three-way valve with integrated protective cap

Abstract

The utility model relates to the technical field of manufacturing of medical instruments, in particular to a medical three-way valve with an integrated protective cap, which is reasonable in structure and simple and convenient to operate and is provided with a three-way valve body and a valve core, the valve core is connected with a handle at the upper end of the valve body, an L-shaped liquid flow channel is arranged in the valve core, and a T-shaped liquid inlet / outlet channel is arranged in the valve body. A T-shaped liquid inlet / outlet channel is formed in the valve body, a valve element fixing cavity is formed in the center of the T-shaped liquid inlet / outlet channel, after the valve element is arranged in the valve element fixing cavity, the valve element is driven by the handle to rotate, only two liquid inlet / outlet channels are communicated each time, and three liquid inlet / outlet pipelines connected with the three liquid inlet / outlet channels of the valve body are further arranged. The integrated protective cap comprises a threaded cap and a connecting part connected with the threaded cap, the other end of the connecting part is provided with an annular fixing sleeve, and the liquid inlet / outlet pipeline is sleeved with the annular fixing sleeve.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument manufacturing technical field, and specifically is a kind of medical three-way valve with integrated protective cap of reasonable structure, easy operation. BACKGROUND

[0002] Medical three-way valve is provided with three-way valve body and valve core, valve core is connected with the handle of valve body upper end, L type liquid flow passage is set in valve core, valve body is T type, with three inlet / outlet liquid end, valve core rotates under the drive of handle and only connects two inlet / outlet liquid pipeline each time, in prior art, the end of three inlet / outlet pipelines connected with three inlet / outlet liquid ends of valve body is closed by thread cover cap, in non-use state, avoid dust or liquid medicine to pollute the internal space of valve body, when using, thread cover cap is removed, and the connection of corresponding liquid passage is completed, however, this way causes that thread cover cap is easily lost, and cannot complete effective sealing protection to the end of inlet / outlet liquid pipeline in non-use state. SUMMARY

[0003] The utility model provides a kind of medical three-way valve with integrated protective cap of reasonable structure, easy operation for above-mentioned problems.

[0004] The utility model reaches by following measure:

[0005] A kind of medical three-way valve with integrated protective cap, it is provided with three-way valve body and valve core, wherein, valve core is connected with the handle of valve body upper end, L type liquid flow passage is set in valve core, inlet / outlet liquid passage of T type is set in valve body, valve core fixing cavity is set in the center of T type inlet / outlet liquid passage, valve core is placed in valve core fixing cavity, and rotates only two inlet / outlet liquid passages each time under the drive of handle, it is also provided with three inlet / outlet liquid pipelines connected with the three inlet / outlet liquid passages of valve body, it is characterized in that, at least two ways of three inlet / outlet liquid pipelines are provided with integrated protective cap, integrated protective cap includes thread cover cap and the connecting portion connected with thread cover cap, the other end of connecting portion is provided with annular fixing sleeve, and annular fixing sleeve is sleeved on the inlet / outlet liquid pipeline.

[0006] The connecting portion of the utility model is made of strip-shaped hard plastic, two bending grooves are set on connecting portion, for ensuring that when thread cover cap is screwed to close the end of inlet / outlet liquid pipeline, the connecting portion made of hard plastic can be bent smoothly, and when thread cover cap is removed, since connecting portion is hard, and main body is straight strip, it can be smoothly extended and take thread cover cap away from the end of inlet / outlet liquid pipeline, avoid that suspended thread cover cap brings hindrance to the access of external liquid medicine input equipment.

[0007] The annular fixing sleeve of the connecting part of this utility model is interference-fitted with the inlet / outlet liquid pipeline. By adopting a tight fit, the connecting part and the threaded cap are prevented from swinging back and forth in mid-air during use, thereby preventing the swinging of the connecting part and the threaded cap from affecting the user's operation.

[0008] Of the three inlet / outlet lines of the valve body of this utility model, two of the perpendicular inlet / outlet lines are equipped with integrated protective caps to adapt to the usual connection habits of medical three-way valves and meet the user's operational needs.

[0009] This invention features integrated protective caps on the two vertical inlet / outlet lines of a medical three-way valve. When the corresponding inlet / outlet lines are idle, the caps can be sealed to protect the pipe ends. When the inlet / outlet lines are connected to external medication equipment, the caps can be quickly opened and, driven by the connecting part, rapidly removed from the inlet / outlet line ends. This prevents obstruction of the connection between the inlet / outlet lines and external equipment. The removed caps remain within a designated area, preventing them from becoming entangled, hooked, or contaminated by external contaminants. The inside of the caps can be quickly disinfected again with alcohol swabs, thus meeting the requirements for reuse.

[0010] Compared with the prior art, this utility model has significant advantages such as reasonable structure and simple operation. Attached image description:

[0011] Appendix Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] Reference numerals: 1. Valve body; 2. Valve core; 3. Handle; 4. Inlet / outlet liquid line; 5. Integrated protective cap; 6. Threaded cap; 7. Connecting part; 8. Annular fixing sleeve; 9. Bending groove. Detailed implementation method:

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] Example:

[0015] As attached Figure 1As shown, this example provides a medical three-way valve with an integrated protective cap. It has a three-way valve body 1 and a valve core 2. The valve core 2 is connected to the handle 3 at the upper end of the valve body 1. The valve core 2 has an L-shaped liquid flow channel, and the valve body 1 has a T-shaped inlet / outlet liquid channel. A valve core fixing cavity is set in the center of the T-shaped inlet / outlet liquid channel. After the valve core 2 is placed in the valve core fixing cavity, it can only connect two inlet / outlet liquid channels at a time when rotated by the handle 3. It also has three inlet / outlet pipes 4 connected to the three inlet / outlet liquid channels of the valve body 1. At least two of the three inlet / outlet liquid pipes 4 are equipped with integrated protective caps 5. The integrated protective cap 5 includes a threaded cap 6 and a connecting part 7 connected to the threaded cap 6. The other end of the connecting part 7 is equipped with an annular fixing sleeve 8, which is sleeved on the inlet / outlet liquid pipes 4.

[0016] The connecting part 7 described in this example is made of strip-shaped rigid plastic. Two bending grooves 9 are provided on the connecting part 7 to ensure that when the threaded cap 6 is screwed to close the end of the inlet / outlet pipe 4, the connecting part 7, made of rigid plastic, can be bent smoothly. When the threaded cap 6 is removed, because the connecting part 7 is relatively hard and the main body is a straight strip, it can extend smoothly and take the threaded cap 6 away from the end of the inlet / outlet pipe, so as to avoid the suspended threaded cap 6 from obstructing the access of the external medicine input device.

[0017] In this example, the annular fixing sleeve 8 of the connecting part 7 and the inlet / outlet liquid pipeline 4 are interference fit. By adopting a tight fit, the connecting part and the threaded cap are prevented from swinging back and forth in mid-air during use, thereby preventing the swinging of the connecting part and the threaded cap from affecting the user's operation.

[0018] In this example, among the three inlet / outlet lines 4 of the valve body 1, two perpendicular inlet / outlet lines are equipped with integrated protective caps to adapt to the usual connection habits of medical three-way valves and meet the user's operational needs.

[0019] This invention features integrated protective caps on the two vertical inlet / outlet lines of a medical three-way valve. When the corresponding inlet / outlet lines are idle, the caps close to the ends of the lines for protection. When the lines are connected to external medical equipment, the caps quickly open and, driven by the connecting part, rapidly remove the threaded caps from the ends of the lines, preventing obstruction of the connection. The removed threaded caps remain within a designated area, preventing them from becoming entangled, hooked, or contaminated by external contaminants. The caps are not lost, and their inner surface can be quickly disinfected with alcohol swabs, thus meeting the requirements for reuse.

[0020] Compared with the prior art, this utility model has significant advantages such as reasonable structure and simple operation.

Claims

1. A medical three-way valve with an integrated protective cap, comprising a three-way valve body and a valve core, wherein, The valve core is connected to the handle at the upper end of the valve body. An L-shaped liquid flow channel is opened in the valve core, and a T-shaped inlet / outlet liquid channel is opened in the valve body. A valve core fixing cavity is set in the center of the T-shaped inlet / outlet liquid channel. After the valve core is placed in the valve core fixing cavity, it can only connect two inlet / outlet liquid channels at a time when rotated by the handle. It is also provided with three inlet / outlet liquid pipes connected to the three inlet / outlet liquid channels of the valve body. The characteristic is that at least two of the three inlet / outlet liquid pipes are provided with an integrated protective cap. The integrated protective cap includes a threaded cap and a connecting part connected to the threaded cap. The other end of the connecting part is provided with an annular fixing sleeve, which is sleeved on the inlet / outlet liquid pipe.

2. The medical three-way valve with an integrated protective cap according to claim 1, characterized in that, The connecting part is made of strip-shaped rigid plastic, with two bending grooves. This ensures that when the threaded cap is screwed on to seal the end of the inlet / outlet pipe, the rigid plastic connecting part can bend smoothly. When the threaded cap is removed, the rigid material of the connecting part and its straight strip shape allow it to extend smoothly and carry the threaded cap away from the end of the inlet / outlet pipe, preventing the suspended threaded cap from obstructing the connection of external medicine input devices.

3. The medical three-way valve with an integrated protective cap according to claim 1, characterized in that, The annular retaining sleeve of the connecting part is interference-fitted with the inlet / outlet liquid pipeline.

4. The medical three-way valve with an integrated protective cap according to claim 1, characterized in that, Of the three inlet / outlet lines of the valve body, two perpendicular inlet / outlet lines are equipped with integrated protective caps.

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