CN2367298Y

CN2367298Y - Disposable changeable skin needle

Info

Publication number: CN2367298Y
Application number: CN 99225339
Authority: CN
Inventors: 吴雪刚
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-01-06
Filing date: 1999-01-06
Publication date: 2000-03-08
Anticipated expiration: 2009-01-06

Abstract

The utility model relates to a disposable changeable skin needle, which comprises a needle handle (7) and a needle handle head (8) connected with the front end of the needle handle (7). The utility model is characterized in that the needle handle head (8) is provided with a hollow cavity (4), the lower opening part of the hollow cavity (4) is filled with a needle base (2) and the lower part of the needle base (2) is provided with a plurality of needle bodies (1). The top part of the hollow cavity (4) of the needle handle head (8) is provided with a through hole of upper and lower directions. A pressing rod (6) passes through the through hole. The upper end part of the pressing rod (6) is exposed on the top part of the needle handle head (8). The lower end part of the pressing rod (6) is contacted with the top part of the needle base (2). The pressing rod can push out the needle base with simple operation.

Description

Disposable interchangeable dermal needle

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

In the prior art, dermal needle is made up of needle handle and needle handle head, and the lower surface of needle handle head is provided with a plurality of needle bodies.The disposable use of existing dermal needle is more, promptly uses up back integral body and abandons, and this measure is relatively wasted, so medical treatment cost is higher.There is a kind of needle handle of dermal needle to be connected, throws away with screwing off the needle handle head after once with the needle handle head thread, the needle handle head that more renews again, this structure easily causes thread abrasion or screw rod fracture, and when changing operating cost.

The purpose of this utility model is to provide a kind of replacing disposable simply and easily interchangeable dermal needle.

The technical solution of the utility model is: a kind of disposable interchangeable dermal needle, comprise needle handle, the needle handle head that is connected with the front end of described needle handle, described needle handle head is provided with cavity, and the infraoral of described cavity is plugged with needle stand, and the bottom of this needle stand is provided with a plurality of needle bodies; The cavity top of described needle handle head has the through hole of above-below direction, and depression bar passes described through hole, and the upper end of described depression bar exposes to the top of needle handle head, and the bottom of described depression bar and the top of described needle stand are inconsistent.

This utility model compared with prior art has following advantage:

Needle stand inserts in the cavity of needle handle head, can needle stand be ejected by following moulded rod, and is therefore simple to operate, can shorten the replacing time over half.The needle stand partial volume of being abandoned is little, and cost is low, can greatly reduce medical treatment cost.

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

Accompanying drawing 1 is structure master's cutaway view of the present utility model;

Accompanying drawing 2 is the outside drawing of needle stand; Wherein:

[1]. needle body; [2]. needle stand; [3]. briquetting; [4]. cavity; [5]. the depression bar head; [6]. depression bar; [7]. needle handle; [8]. the needle handle head; [9]. convex tendon.

Embodiment: referring to 1 one kinds of disposable interchangeable dermal needles of accompanying drawing, comprise needle handle [7], the needle handle head [8] that is connected with the front end of described needle handle [7], described needle handle head [8] is provided with cavity [4], the infraoral of described cavity [4] is plugged with needle stand [2], and the bottom of this needle stand [2] is provided with a plurality of needle bodies [1]; Cavity [4] top of described needle handle head [8] has the through hole of above-below direction, depression bar [6] passes described through hole, the upper end of described depression bar [6] exposes to the top of needle handle head [8], and the top of the bottom of described depression bar [6] and described needle stand [2] is inconsistent.Referring to accompanying drawing 2, the outer surface of described needle stand [2] is provided with the convex tendon [9] of many above-below directions, and the inwall of described cavity [4] contacts with described convex tendon [9].Described convex tendon [9] can reduce the frictional force of the inwall of needle stand [2] and cavity [4], can eject needle stand [2] easily during following moulded rod [6].Described needle stand [2] is up-small and down-big truncated cone.Perhaps the equivalence another kind of structure of replacing is that the inwall of cavity [4] is toroidal, is convenient to needle stand [2] and is inserted in cavity [4] and can not drops out when interior.The upper end of described depression bar [6] is provided with the depression bar head [5] greater than described through hole, and the bottom of described depression bar [6] is provided with the briquetting [3] greater than described through hole, and the lower end of described briquetting [3] is against the upper surface of described needle stand [2].

Claims

1. disposable interchangeable dermal needle, comprise needle handle [7], the needle handle head [8] that is connected with the front end of described needle handle [7], it is characterized in that: described needle handle head [8] is provided with cavity [4], the infraoral of described cavity [4] is plugged with needle stand [2], and the bottom of this needle stand [2] is provided with a plurality of needle bodies [1]; Cavity [4] top of described needle handle head [8] has the through hole of above-below direction, depression bar [6] passes described through hole, the upper end of described depression bar [6] exposes to the top of needle handle head [8], and the top of the bottom of described depression bar [6] and described needle stand [2] is inconsistent.

2. disposable interchangeable dermal needle according to claim 1 is characterized in that: the outer surface of described needle stand [2] is provided with the convex tendon [9] of many above-below directions, and the inwall of described cavity [4] contacts with described convex tendon [9].

3. disposable interchangeable dermal needle according to claim 1 is characterized in that: described needle stand [2] is up-small and down-big truncated cone.

4. disposable interchangeable dermal needle according to claim 1 is characterized in that: the upper end of described depression bar [6] is provided with the depression bar head [5] greater than described through hole.

5. disposable interchangeable dermal needle according to claim 1 is characterized in that: the bottom of described depression bar [6] is provided with the briquetting [3] greater than described through hole, and the lower end of described briquetting [3] is against the upper surface of described needle stand [2].

6. disposable interchangeable dermal needle according to claim 1 is characterized in that: the inwall of described cavity [4] is toroidal.