CN2355722Y

CN2355722Y - Taking out device for syringe needle

Info

Publication number: CN2355722Y
Application number: CN 98249557
Authority: CN
Inventors: 张锡漳
Original assignee: MAOXIN XIAMEN INDUSTRY Co Ltd
Current assignee: MAOXIN XIAMEN INDUSTRY Co Ltd
Priority date: 1998-12-08
Filing date: 1998-12-08
Publication date: 1999-12-29
Anticipated expiration: 2008-12-08

Abstract

The utility model relates to a pulling device for a syringe needle, which is mainly a base with an inserting groove. The inner diameter of the inserting groove is slightly larger than the diameter of a cover of a syringe needle head, and reverse knife blades are arranged inside the inserting groove. The lower part of the inserting groove is provided with a channel which is big enough for the cover of the syringe needle head to fall, and the end of the inserting groove is provided with a gap of the diameter is just larger than the diameter of the tail of the needle head and is smaller than the diameter of the end of a needle tube. The end opening of the inserting groove is also provided with an elastic ring clamp, and ring pieces inside the elastic ring clamp correspond to the direction of the gap and can be folded in the form of the elasticity. The device is convenient and easy to operate for pulling the syringe needle, and can avoid the occurrence of the medical negligence caused by misoperation during pulling the syringe needle.

Description

The pulling attachment of syringe needle

This utility model relates to surgery and uses the device technique field, refers in particular to a kind of pulling attachment of syringe needle.

Usually, during pumping needle, choosing of syringe needle is manually to realize by the injector.So choose, very easily or accidentally, cause syringe needle to stab injector's palm or the phenomenon of touching its thing takes place, cause syringe needle contaminated, even further spread disease germs because of injector's misoperation; According to incompletely statistics, the U.S. just has 4,000,000 because of the favorable malpractice of operate miss that syringe needle is chosen every year on average; For this reason, the problem of choosing of solution syringe needle is extremely urgent.

The purpose of this utility model is to provide a kind of pulling attachment of syringe needle, the manual operation when choosing to substitute syringe needle.

For reaching above-mentioned purpose, solution of the present utility model is:

The pulling attachment of syringe needle is mainly a pedestal with slot, and the internal diameter of slot is slightly larger than the diameter of the needle shield of pumping needle, and the projecting inward clamping structure that is provided with of slot.When desiring to choose syringe needle, only need syringe needle is inserted in the slot in the lump together with needle shield, because the projecting inward clamping structure effect of slot can be blocked needle shield, in order to extracting of syringe needle.

Above-mentioned clamping structure is made up of the plural contrary blade that is axially disposed within the slot.Because of common needle shield is all plastic, contrary set of blades just can reversely be blocked plastics system needle shield, prevents that needle shield from extracting in the lump in company with syringe needle, thereby makes things convenient for choosing of syringe needle.

Above-mentioned slot one side has is enough to passage that needle shield is fallen, and on the slot port and be provided with gap, the diameter of this gap is exactly greater than the diameter of syringe needle afterbody and less than the diameter of syringe tip.After injection finishes, and syringe needle is inserted needle shield again, only need can remove the blocking of clamping structure to needle shield towards the channel direction application of force a little, make needle shield fall into passage; The end frame that makes needle tubing again is at opening position, and the application of force is outwards pulled out needle tubing slightly, can syringe needle be come off from needle tubing by fastening of gap.

Also be provided with the elastic ring card on the above-mentioned slot port, the elastic ring card is made up of two above ring plate resilient connection, but and in the elastic ring card the corresponding gap direction of ring plate be elasticity folding shape.This elastic ring card can be beneficial to the insertion of needle shield and choosing of syringe needle, but when pulling up syringe needle, needs to impose bigger power to the gap direction, can make syringe needle break away from the blocking of elastic ring card.

On the above-mentioned pedestal, respective channel the inner is provided with locating part, the degree of depth of inserting with restriction different size needle shield.

Also have the side door that communicates with passage on the above-mentioned pedestal, in order to the taking-up of discarded syringe needle.

After adopting above-mentioned solution, when utilization this utility model is chosen syringe needle, only need syringe needle is inserted in the slot in the lump together with needle shield, utilize the blocking of clamping structure, easily syringe needle is extracted needle shield.After injection finishes, again syringe needle is inserted in the needle shield again, towards the channel direction application of force a little, can remove the blocking of clamping structure to needle shield, make needle shield fall into passage; And syringe needle is come off from needle tubing by fastening of gap.Wholely choose easy to operately, easy, and can avoid the malpractice that operate miss caused of choosing to take place because of syringe needle.

Below in conjunction with drawings and Examples this utility model is further described.

Fig. 1 is this utility model three-dimensional exploded view;

Fig. 2 is this utility model user mode one top plan view;

Fig. 3 is this utility model user mode two side cutaway views;

Fig. 4 is this utility model user mode three three-dimensional structure diagrams.

See also shown in Fig. 1-2, the pulling attachment of this utility model syringe needle is mainly a pedestal 1, comprises base 12 and bearing 13.Bearing 13 is provided with a slot 2, the internal diameter of slot 2 is slightly larger than the diameter of the needle shield 61 of pumping needle 6, and the slot 2 projecting inward clamping structures that are provided with, and clamping structure is made up of two contrary blades 3 that are axially disposed within the slot 2 among the figure, this clamping structure also can be other forms, as elastic clip etc.Slot 2 belows have is enough to passage 21 that needle shield 61 is fallen, and on slot 2 ports and be provided with gap 22, the diameter of this gap 22 is exactly greater than the diameter of syringe needle 62 afterbodys and less than the diameter of needle tubing 63 ends.Also be provided with elastic ring card 4 on slot 2 ports, elastic ring card 4 is made up of the ring plate 41 of three resilient connection, and in the elastic ring card 4 ring plate 41 corresponding gap 22 directions for being elasticity folding shape.

After this utility model combination, as shown in Figure 2.When desiring to choose syringe needle, only need syringe needle 62 is passed elastic ring card 4 in the lump together with needle shield 61 and insert in the slot 2, because of common needle shield 61 is all plastic, the contrary blade 3 of slot 2 projecting inward settings just can reversely block plastics system needle shield 61, prevent that needle shield 61 from extracting in the lump in company with syringe needle 62, thereby needle shield 61 is blocked, in order to extracting of syringe needle 62.

After injection finishes, and syringe needle 62 is inserted needle shield 61 again, as shown in Figure 3, only need towards the passage 21 directions application of force a little, can remove the blocking of contrary 3 pairs of needle shield 61 of blade, needle shield 61 is pulled out from opening part between the ring plate 41 of elastic ring card 4, fall into passage 21.Again as shown in Figure 4, the end frame that makes needle tubing 63 is at gap 22 places, and the application of force is outwards pulled out needle tubing 63 slightly, can germ-carrying syringe needle 62 be come off from needle tubing 63 by fastening of gap 22, in order to environmental protection.

Please consult shown in Fig. 1-2 again, on the pedestal 1, respective channel 2 the inners are provided with and go back locating part 11, be used to limit the degree of depth that different size needle shield 61 is inserted, after making the insertion of needle shield 61, still have the outside that partly is exposed at slot 2 and elastic ring card 4, when avoiding extracting syringe needle 62, syringe needle 62 touches this device, causes syringe needle 62 to pollute.

In addition, also have side door 14 on the pedestal 1 and communicate, in order to the taking-up of discarded needle shield 61, syringe needle 62 with passage 21.

The pulling attachment of this utility model syringe needle can be fixed on injector's the operating board by the fixing hole on the base 1 15, makes things convenient for the injector to operate.

Claims

1, a kind of pulling attachment of syringe needle is characterized in that: be mainly a pedestal with slot, the internal diameter of slot is slightly larger than the diameter of the needle shield of pumping needle, and the projecting inward clamping structure that is provided with of slot.

2, the pulling attachment of syringe needle according to claim 1 is characterized in that: clamping structure is made up of the plural contrary blade that is axially disposed within the slot.

3, the pulling attachment of syringe needle according to claim 1 is characterized in that: slot one side has is enough to passage that needle shield is fallen, and on the slot port and be provided with gap, the diameter of this gap is exactly greater than the diameter of syringe needle afterbody and less than the diameter of syringe tip.

4, as the pulling attachment of the syringe needle as described in the claim 1,3, it is characterized in that: also be provided with the elastic ring card on the slot port, the elastic ring card is made up of two above ring plate resilient connection, but and in the elastic ring card the corresponding gap direction of ring plate be elasticity folding shape.

5, the pulling attachment of syringe needle according to claim 1 is characterized in that: on the pedestal, respective channel the inner is provided with locating part.

6, the pulling attachment of syringe needle according to claim 1 is characterized in that: also have the side door that communicates with passage on the pedestal.