CN203303078U

CN203303078U - Bone biopsy needle extractor

Info

Publication number: CN203303078U
Application number: CN2013203491720U
Authority: CN
Inventors: 周晓光
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-06-14
Filing date: 2013-06-14
Publication date: 2013-11-27
Anticipated expiration: 2023-06-14

Abstract

The utility model discloses a bone biopsy needle extractor which comprises a handle (1-1) and a barb tooth sleeve pipe (1-2). The front portion of the barb tooth sleeve pipe (1-2) is a semi-arc sleeve pipe (1-3). Barb teeth (1-4) are arranged on the two edges of the semi-arc sleeve pipe (1-3). After a bone biopsy needle penetrates through a cortical bone, a needle core is pulled out, the bone biopsy needle extractor is inserted in, the forefront edge of the semi-arc sleeve pipe is flush with a needle pipe blade of the bone biopsy needle, the semi-arc sleeve pipe goes in continuously in a rotating-reciprocating mode, bone tissue enters a needle pipe of the bone biopsy needle and the semi-arc sleeve pipe of the bone biopsy needle extractor, the bone biopsy needle and the bone biopsy needle extractor rotate synchronously by 360 degrees, the bone tissue is completely separated, the bone biopsy needle extractor is pulled out, and the bone tissue can be smoothly taken out through friction force formed by the barb teeth of the semi-arc sleeve pipe.

Description

Bone biopsy needle extractor

Technical field

This utility model relates to a kind of bone biopsy needle, is specifically related to a kind of bone biopsy needle extractor, belongs to technical field of medical instruments.

Background technology

At present, bone biopsy needle of the prior art, its drawback is to take sclerotin in process to be difficult for taking out from disconnected, and one-time success rate is low, need to carry out repeatedly sclerotin collection, to the patient, cause unnecessary misery, particularly sclerotin collection failure, easily occur in Patients with Bone Tumor, often needs surgical incision to get the osseous tissue biopsy, for the diagnosis and treatment bring difficulty, be unfavorable for applying clinically.

The utility model content

The purpose of this utility model is to be difficult for taking out from disconnected in order to solve existing bone biopsy needle sclerotin in gatherer process, one-time success rate is low, particularly sclerotin collection failure easily occurs in Patients with Bone Tumor, is unfavorable for the problem of applying clinically, and then a kind of bone biopsy needle extractor is provided.

The technical solution of the utility model is: bone biopsy needle extractor comprises handle and reverse hook teeth sleeve pipe, described bone biopsy needle extractor forms by handle with the affixed reverse hook teeth sleeve pipe of handle, the front portion of described reverse hook teeth sleeve pipe is half arc shrouds, and the two edges of described half arc shrouds are reverse hook teeth.

This utility model compared with prior art has following effect: this utility model is by adopting bone biopsy needle extractor, after the bone biopsy needle penetrates cortical bone, extract nook closing member, insert bone biopsy needle extractor, the leading edge of half arc shrouds is concordant with bone biopsy needle needle tube edge, continue reciprocal precession, osseous tissue just enters among half arc shrouds of bone biopsy needle needle tubing and bone biopsy needle extractor, synchronous 360 degree rotation bone biopsy needle and bone biopsy needle extractors, osseous tissue is by fully from disconnected, extract bone biopsy needle extractor, the frictional force that the reverse hook teeth of half arc shrouds forms can successfully be taken out the sclerotin tissue, put back to bone biopsy needle extractor and can constantly extract the more osseous tissue of position, deep, this utility model is simple in structure, easy to operate and safe and reliable, success rate is high, cost is low, reduced patient's misery, alleviated medical personnel's labor intensity.

The accompanying drawing explanation

Fig. 1 is structural representation of the present utility model, and Fig. 2 bone biopsy needle, Fig. 3 are the working state figures of bone biopsy needle extractor.

The specific embodiment

In conjunction with Fig. 1, present embodiment is described, the bone biopsy needle extractor 1 of present embodiment comprises handle 1-1 and reverse hook teeth sleeve pipe 1-2, described bone biopsy needle extractor 1 forms by handle 1-1 with the affixed reverse hook teeth sleeve pipe 1-2 of handle 1-1, the front portion of described reverse hook teeth sleeve pipe 1-2 is half arc shrouds 1-3, and there is reverse hook teeth 1-4 the two edges of described half arc shrouds 1-3.

Using method: using method of the present utility model is described in conjunction with Fig. 1～Fig. 3, as Fig. 2, bone biopsy needle 2 is penetrated to cortical bone, take out nook closing member 2-2, as Fig. 3, insert bone biopsy needle extractor 1, the leading edge of half arc shrouds 1-3 is concordant with the cutting edge of the needle tubing 2-1 of bone biopsy needle 2, continue reciprocal precession, osseous tissue just enters among half arc shrouds 1-3 of the needle tubing 2-1 of bone biopsy needle 2 and bone biopsy needle extractor 1, synchronous 360 degree rotation bone biopsy needles 2 and bone biopsy needle extractor 1, osseous tissue is by fully from disconnected, extract bone biopsy needle extractor 1, the frictional force that the reverse hook teeth 1-4 of half arc shrouds 1-3 forms can successfully be taken out the sclerotin tissue, put back to bone biopsy needle extractor 1 and can constantly extract the more osseous tissue of position, deep.

Claims

1. a bone biopsy needle extractor (1), it is characterized in that it comprises handle (1-1) and reverse hook teeth sleeve pipe (1-2), the front portion of reverse hook teeth sleeve pipe (1-2) is half arc shrouds (1-3), and there is reverse hook teeth (1-4) two edges of half arc shrouds (1-3).