CN218606614U

CN218606614U - Venous blood taking needle with needle head convenient to replace

Info

Publication number: CN218606614U
Application number: CN202222175684.1U
Authority: CN
Inventors: 王友超
Original assignee: Shengguang Medical Instrument Co ltd
Current assignee: Shengguang Medical Instrument Co ltd
Priority date: 2022-08-18
Filing date: 2022-08-18
Publication date: 2023-03-14
Anticipated expiration: 2032-08-18

Abstract

The utility model relates to a vein blood taking needle technical field specifically is a vein blood taking needle of syringe needle convenient to change, comprising a needle body, the needle body is including holding the needle tubing, the inboard of holding the needle tubing is provided with the pjncture needle, the one end of holding the needle tubing and keeping away from the pjncture needle is provided with the hose, the hose is kept away from the one end fixedly connected with connecting pipe of holding the needle tubing. The utility model discloses a break the movable rod off with the fingers and thumb and make the movable rod move about through the pivot, realize that the fixture block separates from the inboard of draw-in groove, then outside pulling sealed piece, the block rubber receives the extrusion can move about to the inboard in flexible groove under the effect of first spring, realize block rubber and seal groove and separate, be convenient for separate sealed piece and needle-holding tube, can realize demolising the change to the puncture needle, it is comparatively laborsaving, can avoid staff direct touch pjncture needle because of the smooth stab that leads easily when directly extracting the puncture needle, can avoid staff direct touch pjncture needle simultaneously, can reduce the disease propagation.

Description

Venous blood taking needle with needle convenient to replace

Technical Field

The utility model relates to a venous blood taking needle technical field specifically is a venous blood taking needle of syringe needle convenient to change.

Background

The venous blood taking needle is used for collecting blood samples in the medical examination process and comprises a needle holder, a connector, a puncture needle, a rubber part and the like, wherein the blood taking needle at the top end is used for puncturing blood vessels, a tail end transparent hose is connected with a tail needle, the tail needle is externally wrapped by the rubber hose, a needle cap is sleeved outside the tail needle and used for puncturing a vacuum blood taking test tube, and the blood is sucked into the tube by using negative pressure in the test tube.

Among the prior art, when demolising the syringe needle of vein blood taking needle, directly extract the syringe needle by the staff generally, the mode of directly extracting is comparatively hard, and injures the staff easily by mistake and causes the disease to spread, consequently needs to design the vein blood taking needle of the syringe needle of being convenient for to change to solve above-mentioned problem urgently.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a venous blood taking needle of syringe needle convenient to change to what provide in solving above-mentioned background art when demolising the syringe needle of venous blood taking needle, generally directly extract the syringe needle by the staff, the mode of directly extracting is comparatively hard, and injure the staff by mistake easily and cause the problem of disease propagation.

In order to achieve the above purpose, the utility model provides the following technical proposal,

the utility model provides a venous blood taking needle convenient to syringe needle of changing, includes the needle body, the needle body is including holding the needle tubing, the inboard of holding the needle tubing is provided with the pjncture needle, the one end of holding the needle tubing and keeping away from the pjncture needle is provided with the hose, the hose is kept away from the one end fixedly connected with connecting pipe of holding the needle tubing, the inboard of holding the needle tubing is provided with the change mechanism, it includes the seal block to change the mechanism, seal block fixed connection is on the surface of pjncture needle, hold the inboard of needle tubing and seted up flexible groove, the first spring of inner wall fixedly connected with in flexible groove, the one end fixedly connected with block rubber of flexible groove is kept away from to first spring, the seal groove has been seted up to the inboard of seal block, the surface swing joint of seal block has the movable rod, the movable rod is through pivot and seal block swing joint, the surface fixedly connected with fixture block of movable rod, the surface of holding the needle tubing has seted up the draw-in groove, the surface fixedly connected with second spring, the one end and the movable rod fixed connection of second spring, the other end and the seal block fixed connection of second spring.

Preferably, the sealing blocks are fixedly connected to the surface of the puncture needle by rubber materials, and the first springs are connected with the telescopic grooves in two groups correspondingly.

Preferably, the rubber block is two sets of and first spring correspondence connection, the movable rod is two sets of swing joint on the surface of sealing block.

Preferably, the fixture blocks are correspondingly connected with the movable rods in two groups, and the second springs are correspondingly connected with the movable rods in two groups.

Preferably, the surface of holding the needle tubing is provided with prevents that the thorn hinders the mechanism, prevent that the thorn hinders the mechanism and include the sleeve pipe, the sleeve pipe cup joints on the surface of holding the needle tubing, the spout has been seted up to the sheathed tube inner wall, the fixed surface who holds the needle tubing is connected with the slider, the one end and the spout swing joint of slider, the other end of slider with hold needle tubing fixed connection, sheathed tube inboard swing joint has the inserted bar, the fixed surface of inserted bar is connected with the third spring, the one end and the inserted bar fixed connection of third spring, the other end and the sleeve pipe fixed connection of third spring, the slot has been seted up to the inner wall of holding the needle tubing.

Preferably, the sliding grooves are two groups of grooves formed in the inner wall of the sleeve, the sliding blocks are two groups of blocks fixedly connected to the surface of the needle tube, and the inserting grooves are two groups of grooves formed in the surface of the needle tube.

Compared with the prior art, the beneficial effects of the utility model are that:

1. make the movable rod move about through the pivot through breaking the movable rod off with the fingers and thumb, realize that the fixture block separates from the inboard of draw-in groove, then outside pulling sealed piece, the block rubber receives the extrusion can move about to the inboard in flexible groove under the effect of first spring, realize block rubber and seal groove and separate, be convenient for separate sealed piece and needle-holding tube, can realize demolising the change to the puncture needle, comparatively laborsaving, can avoid staff directly to cause the stab because of the hand is smooth when extracting the puncture needle directly, can avoid staff direct touch pjncture needle simultaneously, can reduce disease propagation, and is very practical.

2. When the blood taking needle need not to use, the pjncture needle directly exposes outside, leads to the staff to be stabbed easily, and the sleeve pipe cup joints on the surface of holding the needle tubing, makes inserted bar and slot cancellation insert through the pulling inserted bar and closes, can remove sheathed tube position for the sleeve pipe covers the surface at the pjncture needle, inserts inserted bar and slot again and closes, can realize wrapping up the puncture needle through the sleeve pipe, can avoid the staff to be accidentally injured, has played the effect of protection, easy operation.

Drawings

FIG. 1 is a front sectional view of the structure of the present invention;

FIG. 2 is a schematic view of the sealing block and the partial sleeve in front elevation and section;

fig. 3 is an enlarged schematic view of a portion a of fig. 2 according to the present invention;

fig. 4 is a schematic sectional view of the partial structure of the sleeve and the insertion rod according to the present invention.

In the figure: 1. holding the needle tube; 11. puncturing needle; 12. a hose; 13. a connecting pipe; 2. a sealing block; 21. a telescopic groove; 22. a first spring; 23. a rubber block; 24. a sealing groove; 25. a movable rod; 26. a clamping block; 27. a card slot; 28. a second spring; 3. a sleeve; 31. a chute; 32. a slider; 33. inserting a rod; 34. a third spring; 35. and (4) a slot.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides an embodiment of:

the utility model provides a venous blood taking needle convenient to syringe needle of change, comprising a needle body, the needle body is including holding needle tubing 1, the inboard of holding needle tubing 1 is provided with pjncture needle 11, the one end of holding needle tubing 1 and keeping away from pjncture needle 11 is provided with hose 12, hose 12 keeps away from the one end fixedly connected with connecting pipe 13 of holding needle tubing 1, the inboard of holding needle tubing 1 is provided with the change mechanism, change mechanism includes seal block 2, seal block 2 fixed connection is on the surface of pjncture needle 11, flexible groove 21 has been seted up to the inboard of holding needle tubing 1, the inner wall fixedly connected with first spring 22 of flexible groove 21, the one end fixedly connected with block rubber 23 of flexible groove 21 is kept away from to first spring 22, seal groove 24 has been seted up to the inboard of seal block 2, the surface swing joint of seal block 2 has movable rod 25, movable rod 25 is through pivot and seal block 2 swing joint, surface fixedly connected with block 26 of movable rod 25, hold the surface fixedly connected with block rubber block 23 of needle tubing 1 and seted up draw-in the draw-in groove 27, the fixed connection of movable rod 25, the one end fixedly connected with second spring 28, the one end fixedly connected with block rubber block is carried out when the change of puncture needle tubing 21 is carried out the effect of drawing and carrying out the shrink of the effect of the seal groove 11, the pull-off of the flexible groove, the effect of being convenient for changing needle tubing 11, it is carried out the effect of drawing and carrying out the flexible groove, it is carried out to carry out the effect of the flexible groove to the flexible groove, it is carried out to the effect of drawing to puncture needle tubing 11, it.

Further, sealed piece 2 is rubber material fixed connection on the surface of pjncture needle 11, and first spring 22 is two sets of and flexible groove 21 corresponds the connection, and first spring 22 fixed connection can play the effect that resets to rubber block 23 at the inner wall of flexible groove 21, can realize that rubber block 23 carries out the block with seal groove 24 under the effect of first spring 22, can realize fixing sealed piece 2, and then is convenient for install puncture needle 11.

Further, the rubber block 23 is two sets of and corresponds with first spring 22 and connects, and movable rod 25 is two sets of swing joint on the surface of sealed piece 2, and movable rod 25 swing joint makes movable rod 25 move about through the pivot on the surface of sealed piece 2 through pulling movable rod 25, realizes fixture block 26 from the inboard separation of draw-in groove 27, can remove sealed piece 2 and hold the fixed between the needle pipe 1, is convenient for demolish the change to puncture needle 11.

Furthermore, the fixture block 26 is two sets of and is connected with the movable rod 25 correspondingly, the second spring 28 is fixedly connected on the surface of the movable rod 25, the movable rod 25 can be reset, the movable rod 25 drives the fixture block 26 and the clamping groove 27 to be inserted and closed under the action of the second spring 28, and the fixing of the puncture needle 11 and the needle holding tube 1 can be further realized.

Further, the surface of holding needle tubing 1 is provided with the anti-stab mechanism, the anti-stab mechanism includes sleeve 3, sleeve 3 cup joints on the surface of holding needle tubing 1, spout 31 has been seted up to sleeve 3's inner wall, the fixed surface who holds needle tubing 1 is connected with slider 32, the one end and the spout 31 swing joint of slider 32, the other end and the needle tubing 1 fixed connection of slider 32, the inboard swing joint of sleeve 3 has inserted bar 33, the fixed surface of inserted bar 33 is connected with third spring 34, the one end and the inserted bar 33 fixed connection of third spring 34, the other end and the sleeve 3 fixed connection of third spring 34, slot 35 has been seted up to the inner wall that holds needle tubing 1, third spring 34 fixed connection is on the surface of inserted bar 33, can play the effect that resets to inserted bar 33, realize that inserted bar 33 and slot 35 insert under the effect of third spring 34, reach the effect of fixing the position of sleeve 3.

Further, the chute 31 is two sets of inner walls of the sleeve 3, the slider 32 is two sets of fixed connection on the surface of the needle tube 1, the slot 35 is two sets of surfaces of the needle tube 1, the slot 35 is provided on the surface of the needle tube 1, the insertion rod 33 and the slot 35 are inserted, the position of the sleeve 3 can be fixed, the puncture needle 11 can be conveniently covered by the sleeve 3, and the puncture of the user by the puncture needle 11 can be avoided.

The working principle is as follows: when the puncture needle is used, the movable rod 25 is moved through the rotating shaft by breaking the movable rod 25, the fixture block 26 can be separated from the clamping groove 27 under the action of the movable rod 25, at the moment, the second spring 28 is in a stretching state, then the sealing block 2 is pulled outwards to enable the sealing block 2 to move towards the outer side of the needle holding tube 1, the rubber block 23 is extruded and can move towards the inner side of the telescopic groove 21 under the action of the first spring 22, at the moment, the first spring 22 is in a shrinking state, the separation of the rubber block 23 and the sealing groove 24 is realized, the sealing block 2 is further pulled out from the inner side of the needle holding tube 1 to realize the separation, the puncture needle 11 can be detached, then the movable rod 25 on the puncture needle 11 to be installed is broken off, the movable rod 25 can move to be opened through the rotating shaft, the puncture needle 11 to be installed is inserted into the inner side of the needle holding tube 1, when the rubber block 23 is extruded by the sealing block 2, the movable rod can move towards the inner side of the telescopic groove 21, the first spring 22 is in a shrinking state, when the rubber block 23 is inserted into the sealing groove 24, the sealing block 2, the clamping groove 23 can be opened under the action of the sealing groove 23, the clamping groove 24, the fixture block 26 can be installed under the action of the second spring 25, and the fixture block 26 can be restored, and the clamping groove 27, and the clamping effect of the movable rod 25 can be restored, and the movable rod 25.

Make inserted bar 33 and slot 35 separate through outside pull inserted bar 33, third spring 34 is tensile state this moment, then removes sleeve pipe 3 for the sleeve pipe 3 parcel covers pjncture needle 11 on the surface of pjncture needle 11, loosens inserted bar 33 again and makes inserted bar 33 insert with slot 35 and close under third spring 34's effect, can realize fixing sleeve pipe 3's position, reaches the effect of preventing stabbing, and is comparatively practical.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The venous blood taking needle comprises a needle body, wherein the needle body comprises a needle holding tube (1), a puncture needle (11) is arranged on the inner side of the needle holding tube (1), a hose (12) is arranged at one end, far away from the puncture needle (11), of the needle holding tube (1), a connecting tube (13) is fixedly connected with one end of the hose (12), far away from the needle holding tube (1), the venous blood taking needle is characterized in that a replacing mechanism is arranged on the inner side of the needle holding tube (1), the replacing mechanism comprises a sealing block (2), the sealing block (2) is fixedly connected to the surface of the puncture needle (11), a telescopic groove (21) is formed in the inner side of the needle holding tube (1), a first spring (22) is fixedly connected to the inner wall of the telescopic groove (21), the first spring (22) is movably connected with one end of the rubber block (23) far away from the telescopic groove (21), a sealing groove (24) is formed in the inner side of the sealing block (2), a movable rod (25) is movably connected with a clamping groove (25) through a rotating shaft and a movable rod (26) is movably connected with the surface of the sealing block (2), and a second movable rod (27) is connected with the movable rod (25), one end of the second spring (28) is fixedly connected with the movable rod (25), and the other end of the second spring (28) is fixedly connected with the sealing block (2).

2. A needle-replaceable venous blood collection needle as claimed in claim 1, wherein: the sealing block (2) is fixedly connected to the surface of the puncture needle (11) by rubber materials, and the first springs (22) are connected with the telescopic grooves (21) in two groups correspondingly.

3. A needle-replaceable venous blood collection needle as claimed in claim 1, wherein: the rubber block (23) is connected with the first spring (22) in two groups correspondingly, and the movable rod (25) is connected on the surface of the sealing block (2) in two groups in a movable mode.

4. A needle-replaceable venous blood collection needle as claimed in claim 1, wherein: the fixture blocks (26) are correspondingly connected with the movable rods (25) in two groups, and the second springs (28) are correspondingly connected with the movable rods (25) in two groups.

5. A needle-replaceable venous blood collection needle as claimed in claim 1, wherein: the utility model discloses a needle cannula, including needle cannula (1), the surface of holding needle cannula (1) is provided with prevents that the puncture is hindered mechanism, prevent that the puncture mechanism includes sleeve pipe (3), sleeve pipe (3) cup joint on the surface of holding needle cannula (1), spout (31) have been seted up to the inner wall of sleeve pipe (3), the fixed surface who holds needle cannula (1) is connected with slider (32), the one end and spout (31) swing joint of slider (32), the other end of slider (32) with hold needle cannula (1) fixed connection, the inboard swing joint of sleeve pipe (3) has inserted bar (33), the fixed surface of inserted bar (33) is connected with third spring (34), the one end and the inserted bar (33) fixed connection of third spring (34), the other end and sleeve pipe (3) fixed connection of third spring (34), the inner wall of holding needle cannula (1) has seted up slot (35).

6. A needle-replaceable intravenous blood collection needle as claimed in claim 5, wherein: the sliding groove (31) is formed in two groups of inner walls of the sleeve (3), the sliding block (32) is fixedly connected to the surface of the needle tube (1) in two groups, and the inserting groove (35) is formed in two groups of surfaces of the needle tube (1).