CN2635099Y

CN2635099Y - Safety type chemotherapy puncture filling device

Info

Publication number: CN2635099Y
Application number: CN 03255526
Authority: CN
Inventors: 李军生; 陈思; 林森; 刘华龙
Original assignee: SHANGHAI MEIHUA MEDICAL EQUIPMENT CO Ltd
Current assignee: SHANGHAI MEIHUA MEDICAL EQUIPMENT CO Ltd
Priority date: 2003-07-11
Filing date: 2003-07-11
Publication date: 2004-08-25
Anticipated expiration: 2013-07-11

Abstract

A safety type chemotherapy puncture filling device comprises a hose, a needle component, a locking connector, a clip and a cap; the needle component comprises a handle, a cannula, a needle pipe with bent needle tip, a base, an elastic trip and a base cover board; an accommodation chamber is formed in the base, the cannula is arranged on the top of the accommodation chamber, and the turn-edged end is arranged in the accommodation chamber; the accommodation chamber of the base is formed by pressing the cover board and the elastic trip together and fixing the two on the bottom of the base to close into the accommodation chamber; the elastic trip and the base cover board are provided with an overlapped hole; one bent needle tip of the needle pipe is put through the bottom of the handle and is put through the cannula as well as the overlapped hole to extend outward, the angle (Alpha) formed by the final level bending direction of the needle tip of the needle pipe and the perpendicular direction makes the bent needle tip be embedded into the overlapped hole to be blocked outside of the turn-edged end of the cannula. The utility model is characterized in that the needle tip can be simultaneously shielded in the base during the normal needle pipe extraction to make the medical and nursing staff truly avoid the accidents such as mispuncture, and so on, and has the advantages of simple and compact structure, convenient operation and low cost.

Description

A kind of safety chemotherapy puncture device for casting

Technical field

This utility model relates to a kind of disposable medical appliance, relates in particular to the chemotherapy puncture device for casting that clinical medicine uses, and is used in chemotherapy to being embedded in the subcutaneous catheter needle infusion medicinal liquid of patient.

Background technology

At present, the disposable infusion needle of band safety device generally is provided with a safety protective cover movably, behind transfusion (blood transfusion) EO, needle tubing is extracted out from skin, will movably push away before the safety protective cover again, covers needle tubing, reaches the purpose that shields needle tubing.

The disposable infusion needle of this band safety device in use because needle tubing is will to push away before the safety protective cover after extracting out again, covers needle tubing from skin, that is: extracting needle tubing and being nested with safety protective cover is proceed step by step.Be difficult to so really play and prevent that needle point from stabbing medical personnel's effect.And if just advance protective sleeve before needle tubing extracted out from skin, protective sleeve certainly will damage human body skin, and the drawn needle pipe of big-movement also will increase patient's the pain sensation.

For fear of above-mentioned shortcoming, be NO.5 in Application No., mention a kind of needle point protector in 662,610, be used for protecting hypodermic needle, conduit and like product.This protector is small and exquisite, can be before use or be placed on the bottom of pin when using.Can slide into automatically after the use and cover needle point, and locking is no longer mobile.But there is following shortcoming:

One, protector is behind the shielding needle point, and protector is difficult to fix on the needle tubing of straight elevator;

Two, processing difficulties, that is: the assembling more complicated between its spring assembly and the syringe needle, difficulty is bigger.

The utility model content

The purpose of this utility model is to provide a kind of can carry out security mask, chemotherapy puncture device for casting simple in structure, easy to use, with low cost to needle point.

A kind of safety chemotherapy puncture device for casting provided by the utility model, comprise flexible pipe, be connected the needle assembly and the sealed joint at these flexible pipe two ends, be clipped in clip and the block that covers on described sealed joint on this flexible pipe, it is characterized in that: described needle assembly comprises handle, sleeve pipe with a flange end, at least the needle tubing that has single order bending needle point, base, flexure strip and base cover plate, wherein: in described base, form an accommodation chamber, the top of this accommodation chamber is provided with a through hole that supplies described sleeve pipe to wear, and a described telescopic flared ends is deployed in described accommodation chamber, its flange outer diameter is greater than the diameter of described through hole, again: the height of the height of accommodation chamber＜telescopic length＜base; The accommodation chamber of described base is to go up flexure strip pressure poststack by described base cover plate and its to be fixed in the lump on the bottom surface of described base to seal this accommodation chamber, again: on this flexure strip and base cover plate, wear one and hold the folded hole that needle tubing passes through, and should folded hole be corresponding setting with the through hole at described base accommodation chamber top; One end of described needle tubing is fixed in the described handle, its external hose; Its another bending needle point passes described handle bottom surface, pass through the folded hole on described sleeve pipe, described flexure strip and the base cover plate vertically downward, outside stretching out in, and the angle that forms of the last rank overbending direction of the needle point of this needle tubing and vertical direction makes this bending needle point can imbed described folded hole and is barred from outside the telescopic flange end.

Above-mentioned safety chemotherapy puncture device for casting, wherein: the cross section of base is Shape.

Above-mentioned safety chemotherapy puncture device for casting is pasted a soft pad on the bottom surface of base cover plate.

Adopted above-mentioned technical solution, needle tubing of the present utility model is after using end, in patient skin the process of drawn needle, in just needle point being closed at and is shielded from last in the base accommodation chamber gradually, that is: in pulling out the needle tubing process normally, synchronously needle point is shielded from the base, avoided behind the existing extraction needle tubing defective of the substep of shielding operation again, made medical personnel can really avoid the generation of contingent such as mistake puncture grade.This utility model is simple in structure, compact, and is easy to operate, and cost is lower.

Description of drawings

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

Fig. 2 is the cross-sectional view of needle assembly embodiment of the present utility model;

Fig. 3 is the cross-sectional view after the needle point shielding among Fig. 2 embodiment.

The specific embodiment

As shown in Figure 1, this utility model, i.e. safety chemotherapy puncture device for casting, comprise flexible pipe 2, be connected these flexible pipe 2 two ends needle assembly 1 and sealed joint 7, be clipped in the clip 3 on this flexible pipe 2 and cover block 8 on sealed joint 7.

As shown in Figure 2, needle assembly 1 comprises handle 11, has needle tubing 16, base 13, flexure strip 14 and the base cover plate 15 of sleeve pipe 12, the two rank bending needle point of a flange end 120.Wherein: sleeve pipe 12 can adopt rustless steel or medical grade plastic materials to make; The quantity of flexure strip 14 can be 1, also can be multi-disc, also can adopt rustless steel or medical grade plastic materials made; Pasting one soft pad on the bottom surface of base cover plate 15.

The cross section of this base 13 is Shape is an accommodation chamber 130 in it, and the top of this accommodation chamber 130 is provided with a through hole 131 that wears for sleeve pipe 12, and a telescopic flange end 120 places in the accommodation chamber 130, and its flange outer external diameter is greater than the diameter of through hole 131.The height of the height of accommodation chamber＜telescopic length＜base.

The accommodation chamber 130 of base is to go up flexure strip 14 pressure poststacks by base cover plate 15 and its to be fixed in the lump on the bottom surface of base 13 to seal this accommodation chamber 130.On this flexure strip 14 and base cover plate 15, wear one and hold the folded hole 145 that needle tubing 16 passes through, and should folded hole 145 are corresponding settings with the through hole 131 at base accommodation chamber 130 tops.

One end of needle tubing 16 is fixed in the described handle 11, and its external hose 2 also can be set up a threeway seat 4 on this flexible pipe 2, and increases by a clip 6 on the flexible pipe 2 of this threeway seat 4 rear ends connection.

One bending needle point of needle tubing 16 passes handle 11 bottom surfaces, pass through the folded hole 145 on sleeve pipe 12, flexure strip 14 and the base cover plate 15 vertically downward, outside stretching out in, and the angle α that the last rank overbending direction of the needle point of this needle tubing 16 and vertical direction form makes this bending needle point to imbed to fold hole 145 and is barred from outside the telescopic flange end 120.

This utility model chemotherapy puncture device for casting can be connected with other medicine machine by the sealed joint 7 of tail end, medicinal liquid injects by flexible pipe, needle point and is embedded in the subcutaneous of human body, after injection finishes, as shown in Figure 3, the needle tubing of pulling back is behind needle tubing indentation base, because the resilience of flexure strip, make the needle point and the described folded hole 145 of bending misplace, thereby stop the descending of needle tubing needle point.In addition,, thereby locked bending needle point up of needle tubing, avoided the needle tubing rollback outside base because sleeve pipe 12 lower ends are turnup structure.Finished shielding like this, effectively to the needle tubing needle point.In addition, the floor space of base is trapezoidal amplification, and pastes soft pad, has not only strengthened the contact area with the affected part, and stability is better during operation, and makes the patient feel more comfortable.

Claims

1. safety chemotherapy puncture device for casting, comprise flexible pipe (2), be connected this flexible pipe (2) two ends needle assembly (1) and sealed joint (7), be clipped in the clip (3) on this flexible pipe (2) and cover block (8) on described sealed joint (7), it is characterized in that:

Described needle assembly (1) comprises handle (11), has the sleeve pipe (12) of a flange end, has needle tubing (16), base (13), flexure strip (14) and base cover plate (15) that single order bends needle point at least, wherein:

In described base (13), form an accommodation chamber (130), the top of this accommodation chamber (130) is provided with a through hole (131) that supplies described sleeve pipe (12) to wear, and a described telescopic flange end (120) places in the described accommodation chamber (130), its flange outer diameter is greater than the diameter of described through hole (131), again: telescopic length greater than the height of accommodation chamber less than the height of base;

The accommodation chamber of described base (130) be by described base cover plate (15) and on it plurality of elastic sheet (14) press poststack to be fixed in the lump on the bottom surface of described base (13) to seal this accommodation chamber (130), again: on this flexure strip (14) and base cover plate (15), wear one in advance and hold the folded hole (145) that needle tubing (16) was pushed and passed the interval of flexure strip (14) aside and passes through, and should folded hole (145) be corresponding setting with the through hole (131) at described base accommodation chamber top;

One end of described needle tubing (16) is fixed in the described handle (11), its external hose (2), its another bending needle point passes described handle (11) bottom surface, pass through the folded hole (145) on described sleeve pipe (12), described flexure strip (14) and the base cover plate (15) vertically downward, outside stretching out in, and the angle that forms of the last rank overbending direction of the needle point of this needle tubing (16) and vertical direction makes this bending needle point can imbed described folded hole (145) and is barred from outside the telescopic flange end (120).

2. a kind of safety chemotherapy puncture device for casting according to claim 1, it is characterized in that: the cross section of described base (13) is

Shape.

3. a kind of safety chemotherapy puncture device for casting according to claim 1 and 2 is characterized in that: paste a soft pad on the bottom surface of described base cover plate (15).