CN202236643U - Positive pressure filtering venous indwelling needle - Google Patents

Abstract

The positive pressure filtering venous indwelling needle comprises a needle seat, a long catheter, a flow stopping clamp, a long catheter seat and a cap, wherein the cap is arranged on the long catheter seat, the two ends of the long catheter are connected with the needle seat and the long catheter seat, and the flow stopping clamp is arranged on the long catheter. The utility model discloses can apply a malleation for infusion passageway, make the liquid medicine infusion more smooth, filter membrane in the joint can filter rubber particle, glass fiber and insoluble liquid medicine particle to external, reduces the harm to patient. Therefore, the device has the advantages of good safety, simple structure, convenient operation and the like, and has stronger practicability and economic benefit.

Description

Positive press filtration venous detaining needle

Technical field

This utility model belongs to medical apparatus and instruments, specifically is a kind of positive press filtration venous detaining needle.

Background technology

The application of venous detaining needle is a clinical transfusion method preferably, and it can alleviate the workload of clinical nurse.Often need the venoclysis medicinal liquid in the clinical transfusion process; Some medicinal liquid such as ampicillin, ceftriaxone sodium etc.; Contain a large amount of rubber particles, fibre glass and insoluble drug particle in the medicinal liquid, existing venous detaining needle lacks the device that filters this microgranule, direct socket syringe in the time of need quietly pushing away medicine; A large amount of rubber particles, fibre glass and insoluble drug particle just get into human vas with medicinal liquid, bring harm to patient.

The utility model content

The purpose of this utility model is the deficiency that overcomes above-mentioned existence, provides a kind of safety good, simple in structure positive press filtration venous detaining needle.

The technical scheme that this utility model is adopted to achieve these goals is: a kind of positive press filtration venous detaining needle; Comprise needle stand, long duct, flow-stopping clip, long duct seat and block; Said block is located on the long duct seat; The long duct two ends connect needle stand and long duct seat, and said flow-stopping clip is located on the long duct, it is characterized in that also being provided with on the long duct seat malleation transition joint.

Positive press filtration venous detaining needle described in this utility model, its characteristic is connected to form by casing seat, batching pig, sleeve pipe rivet, sleeve pipe, needle tubing at said needle stand from the bottom up.

The needle point of needle tubing described in this utility model is exposed at outer other parts of sleeve pipe and is enclosed within the sleeve pipe; Said needle tubing and sleeve pipe all cover in the protective sleeve.

The transition joint of malleation described in this utility model comprises spring, filter membrane and syringe, and wherein filter membrane is between spring and syringe, and spring is near the long duct seat.

This utility model can apply a malleation to infusion channel, makes the medicinal liquid infusion more smooth, and the filter membrane in the joint can be filled into rubber particle, fibre glass and insoluble drug particle external, reduces the harm to patient.Therefore have advantages such as safety is good, simple in structure, easy to operate, have stronger practicality and economic benefit.

Description of drawings

Fig. 1 is this utility model structural representation.

Fig. 2 is the needle stand structural representation.

Among the figure: the 1-needle stand; The 2-casing seat; The 3-batching pig; 4-sleeve pipe rivet; The 5-sleeve pipe; The 6-needle tubing; The 7-protective sleeve; The 8-long duct; The 9-flow-stopping clip; 10-long duct seat; 11-malleation transition joint; The 12-block, the 13-spring; The 14-filter membrane; The 15-syringe.

The specific embodiment

To combine accompanying drawing that the technical scheme of this utility model is further specified below, but this utility model is not limited in following embodiment:

As shown in Figure 1: a kind of positive press filtration venous detaining needle; Comprise needle stand 1, long duct 8, flow-stopping clip 9, long duct seat 10 and block a shot 12; Said block 12 is located on the long duct seat 10, and long duct 8 two ends connect needle stand 1 and long duct seat 10, and said flow-stopping clip 9 is located on the long duct 8.Also be provided with malleation transition joint 11 on the long duct seat 10.Said malleation transition joint 11 comprises spring 13, filter membrane 14 and syringe 15, and wherein filter membrane 14 is between spring 13 and syringe 15, and spring 13 is near long duct seat 10.

As shown in Figure 2: wherein needle stand 1 is connected to form by casing seat 2, batching pig 3, sleeve pipe rivet 4, sleeve pipe 5, needle tubing 6 from the bottom up.Said needle tubing 6 needle points are exposed at sleeve pipe 5 outer other parts and are enclosed within the sleeve pipe 5, and needle tubing 6 all covers in the protective sleeve 7 with sleeve pipe 5.

When pushing away the infusion medicinal liquid to patient is quiet with syringe, can apply a malleation to infusion channel, make the medicinal liquid infusion more smooth, the filter membrane in the joint can be filled into rubber particle, fibre glass and insoluble drug particle external, reduces the harm to patient.

Claims (5)

1. positive press filtration venous detaining needle; Comprise needle stand (1), long duct (8), flow-stopping clip (9), long duct seat (10) and block (12); Said block (12) is located on the long duct seat (10); Long duct (8) two ends connect needle stand (1) and long duct seat (10), and said flow-stopping clip (9) is located on the long duct (8), it is characterized in that also being provided with on the long duct seat (10) malleation transition joint (11).

2. positive press filtration venous detaining needle according to claim 1, its characteristic is connected to form by casing seat (2), batching pig (3), sleeve pipe rivet (4), sleeve pipe (5), needle tubing (6) at said needle stand (1) from the bottom up.

3. positive press filtration venous detaining needle according to claim 2 is characterized in that said needle tubing (6) needle point is exposed at outer other parts of sleeve pipe (5) and is enclosed within the sleeve pipe (5).

4. positive press filtration venous detaining needle according to claim 3 is characterized in that said needle tubing (6) and sleeve pipe (5) all cover in the protective sleeve (7).

5. positive press filtration venous detaining needle according to claim 1; Its characteristic comprises spring (13), filter membrane (14) and syringe (15) at said malleation transition joint (11); Wherein filter membrane (14) is positioned between spring (13) and the syringe (15), and spring (13) is near long duct seat (10).

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