CN205084113U - Neurosurgery is with keeping somewhere needle - Google Patents

Abstract

The utility model relates to an indwelling needle for neurosurgery, which belongs to the field of medical care equipment; the indwelling needle for neurosurgery includes a needle holder, a tube holder, a steel needle, an indwelling tube, a hose, a flow stop clamp, a filter device, three Through tube, heparin cap, sealant, the indwelling tube is installed under the tube base, the steel needle is fixed on the needle base and placed in the indwelling tube, the output end of the hose is connected to the oblique interface on the side of the tube base, the hose There is a flow-stop clamp on the top, and a filter device is arranged between the lower port of the tee pipe as its output end and the input end of the hose, and the upper two openings of the tee pipe are respectively connected with a heparin cap and a sealant; the nerve of the utility model The surgical indwelling needle is not easy to block the tube, it is more convenient to remove the air, no impurities will enter the human vein, and the heparin cap is not easy to lose.

Description

Indwelling needle for neurosurgery

technical field

The utility model belongs to the field of medical care equipment, in particular to an indwelling needle for neurosurgery.

Background technique

The indwelling needle for neurosurgery is a medical care device for multiple infusion treatments within a certain period of time. It generally includes an infusion connector, an infusion catheter, a Y-shaped catheter seat, a puncture needle, and an indwelling tube. The indwelling tube is made of transparent biological materials. It has the characteristics of flexibility, toughness, and is not easy to damage the blood vessel wall. In clinical use, the air in the indwelling needle for neurosurgery is first exhausted with liquid medicine, and the puncture steel needle guides the cannula of the indwelling needle for neurosurgery into the human body. After confirming that the puncture is successful, the puncture steel needle is pulled out, and the indwelling needle cannula for neurosurgery is kept in the blood vessel. The indwelling needle cannula for neurosurgery can be used safely within the safe indwelling time. It is suitable for surgery, newborns, Critically ill patients can receive intravenous infusion at any time to ensure treatment, avoid the pain caused by frequent punctures to the patient's head, and reduce the workload of nursing staff.

However, the existing indwelling needle for neurosurgery is prone to blockage, and the indwelling tube needs to be removed in the blood vessel of the patient to be punctured again, which increases the workload of the nurses; the existing indwelling needle for neurosurgery, Before the puncture, it must be connected with the infusion system, and the air should be removed by using the liquid medicine. This process is not only inconvenient to operate, but also difficult to completely exhaust the air. These gases are likely to be brought into the human vein during the infusion; existing nerves Surgical indwelling needles directly enter the veins of the human body through the liquid medicine of the three-way tube, and the impurities in the liquid enter the veins of the human body immediately, which will cause harm to the human body; There is no connecting device between the through tubes, and it is easy to cause the loss of the heparin cap during the process of adding the liquid medicine.

Therefore, it is necessary to improve the existing indwelling needle for neurosurgery, so that the indwelling needle for neurosurgery is not easy to block the tube, it is more convenient to remove air, no impurities will enter the vein, and the heparin cap is not easy to lose.

Contents of the invention

In order to overcome the deficiencies in the background technology, the utility model proposes an indwelling needle for neurosurgery, which can prevent the formation of thrombus in the indwelling tube and prevent tube blockage; it can realize automatic exhaust, and no gas will be brought into the human vein; It can filter and purify the medicinal liquid before it enters the human vein; it can prevent the loss of the heparin cap.

In order to achieve the above object, the utility model is implemented according to the following technical scheme: the indwelling needle for neurosurgery includes a needle base, a tube base, a steel needle, an indwelling tube, a hose, a flow stop clip, a filter device, a three-way tube , heparin cap, sealant, the indwelling tube is installed under the tube base, the steel needle is fixed on the needle base and placed in the indwelling tube, the output end of the hose is connected to the oblique interface on the side of the tube base, and the hose is set There is a flow-stop clamp, and a filter device is set between the lower port of the tee pipe as its output end and the input end of the hose. The upper two openings of the tee pipe are respectively connected to the heparin cap and the sealant, and the connection between the heparin cap and the tee pipe is connected by strings.

Further, the puncture end of the indwelling tube has a flat mouth used in conjunction with the pointed surface of the steel needle, and the flat mouth is made of elastic material.

Further, the filter device includes an upper cover integrally formed with the three-way pipe, a lower cover screwed to the upper cover, and a filter sheet located in the inner cavity formed by the upper cover and the lower cover.

Further, the sealant is provided with an exhaust cap, the exhaust cap is provided with an exhaust pipe, the puncture end of the exhaust pipe passes through the sealant, and the outer end of the exhaust cap is provided with a hydrophobic film.

Beneficial effects of the utility model: the puncture end of the indwelling tube has a flat mouth that is used in conjunction with the pointed surface of the steel needle. After the puncture is completed and the steel needle is withdrawn, the flat mouth is naturally closed, which can prevent the formation of thrombus in the indwelling tube and prevent tube blockage ;The hydrophobic membrane only allows air to pass through but not liquid, so the blood will be blocked by the hydrophobic membrane during this process to prevent it from flowing out. At this time, the exhaust cap is pulled out, and there is no air inside the channel of the entire neurosurgery indwelling needle; There is a filter device between the tube and the hose, and the impurities in the liquid medicine can be isolated by the filter device, which can effectively prevent impurities from entering the human vein and avoid the damage of impurities to the human body; the heparin cap and the three-way tube are connected by a thin rope, which can Effectively prevent the loss of the heparin cap.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Figure 2 is a schematic diagram of the structure of the filter device.

In the figure, 1-needle seat, 2-tube seat, 3-steel needle, 4-indwelling tube, 5-flexible tube, 6-stop clip, 7-filter device, 8-tee tube, 9-heparin cap, 10-sealant, 11-string, 12-flat mouth, 13-exhaust cap, 14-exhaust pipe, 15-hydrophobic membrane, 16-upper cover, 17-lower cover, 18-filter.

detailed description

In order to make the purpose, technical solutions and beneficial effects of the present utility model clearer, the preferred embodiments of the present utility model will be described in detail below in conjunction with the accompanying drawings, so as to facilitate the understanding of technical personnel.

As shown in Figure 1-2, the indwelling needle for neurosurgery includes a needle base 1, a tube base 2, a steel needle 3, an indwelling tube 4, a hose 5, a stop clip 6, a filter device 7, and a three-way tube 8 , heparin cap 9, sealant 10, the indwelling tube 4 is installed under the tube base 2, the steel needle 3 is fixed on the needle base 1 and placed in the indwelling tube 4, the output end of the hose 5 is connected to the tube base 2 On the oblique interface on the side, the hose 5 is provided with a flow stop clip 6, the lower port of the tee pipe 8 is used as its output end and a filter device 7 is arranged between the input end of the hose 5, and the upper two ends of the tee pipe 8 The openings are respectively connected to the heparin cap 9 and the sealant 10. The heparin cap 9 and the tee tube 8 are connected by a string 11. When the heparin cap 9 needs to be removed during the infusion, the unscrewed heparin cap 9 will be connected to the On the three-way tube 8, when the infusion is completed, the heparin cap 9 can be tightened conveniently, and the heparin cap 9 does not need to be specially preserved.

The puncture end of the indwelling tube 4 has a flat mouth 12 used in conjunction with the sharp surface of the steel needle 3. The flat mouth 12 is made of elastic material. After the steel needle 3 is withdrawn, the flat mouth 12 is automatically closed to prevent blood backflow. Therefore, the formation of thrombus in the indwelling tube 4 can be prevented, the tube can be blocked, and the service life of the indwelling needle for neurosurgery can be improved.

Described filtering device 7 comprises the loam cake 16 integrally formed with tee pipe 8, by the lower cap 17 that is threadedly connected with loam cake 16, the filter plate 18 that is positioned at the inner cavity that loam cake 16 and lower cap 17 forms, for To prevent the loosening of the filter 18, the filter 18 can be clamped between the top wall of the upper cover 16 and the upper end of the lower cover 17. The filter 18 is made of common filter materials, and the impurities in the liquid medicine can be filtered The device 7 is isolated, which can effectively prevent impurities from entering the veins of the human body and avoid the damage of impurities to the human body.

The sealant 10 is provided with an exhaust cap 13, the exhaust cap 13 is provided with an exhaust pipe 14, the puncture end of the exhaust pipe 14 passes through the sealant 10, and the outer end of the exhaust cap 13 is provided with a hydrophobic film 15. The hydrophobic membrane 15 only allows air to pass through but not liquid, so the blood will be blocked by the hydrophobic membrane 15 during this process to prevent it from flowing out. At this time, the exhaust cap 13 is pulled out, and there is no air in the channel of the entire neurosurgery indwelling needle , to ensure that the gas will not be brought into the human vein along with the liquid medicine.

The working process of the utility model: when the heparin cap 9 is removed during the infusion process, the liquid medicine is injected into the pipeline, the unscrewed heparin cap 9 will be connected to the three-way tube 8, and the steel needle 3 guides the indwelling tube 4 After entering the vein of the human body, after confirming that the puncture is successful, the steel needle 3 is withdrawn, the indwelling tube 4 remains in the blood vessel, and the flat mouth 12 is automatically closed to prevent blood backflow. Remove, the generated air bubbles are discharged through the hydrophobic membrane 15 on the upper part of the exhaust 14, and the exhaust cap 13 is pulled out, and there is no air inside the passage of the entire neurosurgery indwelling needle, ensuring that no gas will enter the human vein. When the infusion is completed, the The heparin cap 9 can be tightened.

The puncture end of the indwelling tube has a flat mouth that is used in conjunction with the pointed surface of the steel needle. After the puncture is completed and the steel needle is withdrawn, the flat mouth is naturally closed, which can prevent the formation of thrombus in the indwelling tube and prevent the tube from being blocked; the hydrophobic membrane only allows air Pass through without allowing the liquid to pass through, so the blood will be blocked by the hydrophobic membrane during this process to prevent it from flowing out. At this time, the exhaust cap is pulled out, and there is no air inside the channel of the entire neurosurgery indwelling needle; There is a filter device, and the impurities in the liquid medicine can be isolated by the filter device, which can effectively prevent the impurities from entering and avoid the harm of impurities to the human body; the heparin cap and the three-way tube are connected by a thin rope, which can effectively prevent the loss of the heparin cap.

Finally, it is noted that the above preferred embodiments are only used to illustrate the technical solutions of the present utility model without limitation. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that it can be described in the form Various changes can be made in the above and in the details without departing from the scope defined by the claims of the present invention.

Claims (4)

1. a neurosurgery remaining needle, it is characterized in that: described neurosurgery remaining needle comprises needle stand, base, draw point, indwelling tube, flexible pipe, flow-stopping clip, defecator, tee T, calparine cap, fluid sealant, described indwelling tube is arranged on below base, draw point to be fixed on needle stand and to be placed in indwelling tube, the outfan of flexible pipe is connected on the angle stake of base side, flexible pipe is provided with flow-stopping clip, the lower port of tee T is provided with a defecator as between its outfan and input of flexible pipe, top two opening of tee T connects calparine cap and fluid sealant respectively, be connected by cord between calparine cap with tee T.

2. a kind of neurosurgery remaining needle according to claim 1, is characterized in that: described indwelling tube cutting tip have with described draw point point face with the use of flat mouth, described flat mouth adopts elastomeric material.

3. a kind of neurosurgery remaining needle according to claim 1, is characterized in that: described defecator comprises the integrated upper cover with tee T, by the lower cover be threaded with upper cover, is arranged in the filter of the inner chamber that upper cover and lower cover are formed.

4. a kind of neurosurgery remaining needle according to claim 1, is characterized in that: described fluid sealant is provided with exhaust cap, exhaust cap is provided with exhaustor, and the cutting tip of exhaustor is through fluid sealant, and the outer end of exhaust cap is provided with hydrophobic membrane.