CN2387859Y

CN2387859Y - Once-used blood taking needle

Info

Publication number: CN2387859Y
Application number: CN 99239544
Authority: CN
Inventors: 吴雪刚
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-09-02
Filing date: 1999-09-02
Publication date: 2000-07-19
Anticipated expiration: 2009-09-02

Abstract

The utility model relates to a disposable blood sampling needle. The utility model is characterized in that a blood sampling needle body (5) with a needlepoint (9) at the lower part is arranged inside a casing tube (6); a spring (4) which causes the blood sampling needle body (5) to reset is arranged between the blood sampling needle body (5) and the casing tube (6); the upper end part of the blood sampling needle body (5) is exposed beyond the upper end opening part of the casing tube (6); the needlepoint (9) is positioned inside the lower end opening part of the casing tube (6). When the utility model is used for sampling blood, the lower opening part of the casing tube is tightly pressed at the blood sampling position, and the blood sampling position produces an insensible feeling. When the needlepoint is stabbed, patients do not have painful feelings, and the patients can not directly observe the penetration of the needlepoint. The psychological pressure can be eased.

Description

Disposable blood taking needle

This utility model relates to a kind of medical apparatus and instruments, particularly blood taking needle.

In the prior art, disposable blood taking needle adopts syringe needle or three edged needle blood sampling, being pinned by the nurse needs blood sampling site, extracts after thrusting skin rapidly with needle point then again, and this mode requires very high to nurse's basic training, depth of needling can't strict be controlled, and needle point directly in the face of patient, makes most patients have fear and pain during owing to acupuncture, and it is big that patient's mental pressure becomes, because syringe needle directly exposes, the blood taking needle after therefore using up deals with the comparison difficulty in addition.

The purpose of this utility model is to provide the disposable blood taking needle that a kind of using method is simple, use convenient post-treatment.

The technical solution of the utility model is: a kind of disposable blood taking needle, the blood sampling needle body that the lower end has needle point is arranged in the sleeve pipe, be provided with the spring that makes that the blood sampling needle body resets between described blood sampling needle body and the described sleeve pipe, the upper end of described blood sampling needle body is exposed to outside the oral area of described telescopic upper end, and described needle point is positioned within the oral area of described telescopic lower end.

This utility model compared with prior art has following advantage:

(1), when blood sampling, compress blood sampling site with telescopic infraoral, make blood sampling site generation feeling of numbness, then needle point stings fashionable painless sense, patient can not observe directly thrusting of needle point yet, has alleviated mental pressure.

(2), the degree of depth of thrusting human body of needle point is that to expose to the length of sleeve pipe upper oral part closely-related with blood sampling needle body upper end, this length is made by standard by manufacturer, therefore the operation skill to the nurse does not have specific (special) requirements, grasps easily.

(3), when handling this utility model use up, only need heat, then the sleeve pipe made of plastics can encase needle point behind the hot melt, and needle point can not damage follow-up processing workman again to it.

The utility model will be further described below in conjunction with drawings and Examples:

Accompanying drawing 1 is a structure cutaway view of the present utility model;

Accompanying drawing 2 is the structure cutaway view that has increased the piston sleeve of blood drawing function on the basis of accompanying drawing 1; Wherein: [1], blood taking needle hands handle; [2], sleeve pipe overhead gage; [3], blood taking needle overhead gage; [4], spring; [5], blood sampling needle body; [6], sleeve pipe; [7], sleeve pipe lower baffle plate; [8], blood taking needle lower baffle plate; [9], needle point; [10], pore; [11], piston; [12], piston sleeve; [13], plunger shaft; [14], piston rod; [15], piston hands handle; [16], scale mark.

Embodiment: referring to accompanying drawing 1, a kind of disposable blood taking needle, it is characterized in that: the blood sampling needle body [5] that the lower end has needle point [9] is arranged in the sleeve pipe [6], be provided with the spring [4] that makes that blood sampling needle body [5] resets between described blood sampling needle body [5] and the described sleeve pipe [6], the upper end of described blood sampling needle body [5] is exposed to outside the upper end oral area of described sleeve pipe [6], and described needle point [9] is positioned within the lower end oral area of described sleeve pipe [6].The top of described sleeve pipe [6] is provided with sleeve pipe overhead gage [2], the bottom of described sleeve pipe [6] is provided with sleeve pipe lower baffle plate [7], the blood sampling needle body [5] of described sleeve pipe overhead gage [2] below is provided with blood taking needle overhead gage [3], the blood sampling needle body [5] of described sleeve pipe lower baffle plate [7] below is provided with blood taking needle lower baffle plate [8], the upper end of described spring [4] is against the lower surface of described blood taking needle overhead gage [3], and the bottom of described spring [4] is against the upper surface of described sleeve pipe lower baffle plate [7].

Referring to accompanying drawing 2, the sidepiece of described sleeve pipe [6] is provided with piston sleeve [12], be provided with the piston [11] that the internal chamber wall with plunger shaft [13] is slidingly connected in the internal piston chamber [13] of this piston sleeve [12], described plunger shaft [13] is connected by pore [10] with the cannula cavity of described sleeve pipe lower baffle plate [7] below, and the upper end of described piston [11] is piston handle [15] and exposes to outside the upper oral part of described piston sleeve [12].The bottom outer wall of described sleeve pipe [6] is provided with scale mark [16].After needle point has stung, can spur piston handle [15], blood specimen collection is arrived in the following tube chamber of sleeve pipe [6].

Claims

1, a kind of disposable blood taking needle, it is characterized in that: the blood sampling needle body [5] that the lower end has needle point [9] is arranged in the sleeve pipe [6], be provided with the spring [4] that makes that blood sampling needle body [5] resets between described blood sampling needle body [5] and the described sleeve pipe [6], the upper end of described blood sampling needle body [5] is exposed to outside the upper end oral area of described sleeve pipe [6], and described needle point [9] is positioned within the lower end oral area of described sleeve pipe [6].

2, disposable blood taking needle according to claim 1, it is characterized in that: the top of described sleeve pipe [6] is provided with sleeve pipe overhead gage [2], the bottom of described sleeve pipe [6] is provided with sleeve pipe lower baffle plate [7], the blood sampling needle body [5] of described sleeve pipe overhead gage [2] below is provided with blood taking needle overhead gage [3], the blood sampling needle body [5] of described sleeve pipe lower baffle plate [7] below is provided with blood taking needle lower baffle plate [8], the upper end of described spring [4] is against the lower surface of described blood taking needle overhead gage [3], and the bottom of described spring [4] is against the upper surface of described sleeve pipe lower baffle plate [7].

3, disposable blood taking needle according to claim 1, it is characterized in that: the sidepiece of described sleeve pipe [6] is provided with piston sleeve [12], be provided with the piston [11] that the internal chamber wall with plunger shaft [13] is slidingly connected in the internal piston chamber [13] of this piston sleeve [12], described plunger shaft [13] is connected by pore [10] with the cannula cavity of described sleeve pipe lower baffle plate [7] below, and the upper end of described piston [11] is piston handle [15] and exposes to outside the upper oral part of described piston sleeve [12].

4, disposable blood taking needle according to claim 3 is characterized in that: the bottom outer wall of described sleeve pipe [6] is provided with scale mark [16].