CN205054286U - Bone marrow puncture of hematology needle - Google Patents

Abstract

The utility model discloses a bone marrow puncture of hematology needle, including the needle body, the inside of needle body is equipped with the nook closing member, the position that the outside of needle body is close to the right part is equipped with the protection casing, be equipped with pressing hole on the protection casing, protection casing right -hand be equipped with with the inside communicating reservoir of needle body, be equipped with the negative pressure bag on the reservoir, still be equipped with the scale mark on the reservoir, the right -hand member of needle body is equipped with the needle handle, be equipped with the passageway that is linked together with the needle body inner chamber in the needle handle, nook closing member one end extends to in the passageway, be equipped with the recess in the circumferentia of passageway, the gomphosis is dull and stereotyped in the recess, dull and stereotyped one end fixed connection is to the nook closing member, the inside one end of being close to the needle body of recess is equipped with the spring, dull and stereotyped one side support and lean on on the spring, dull and stereotyped opposite side is equipped with limit stop, the one end that the needle body was kept away from to the recess is equipped with the separation blade, one side of separation blade is equipped with through the opening of path connection to the recess. The utility model discloses simple structure, convenient to use, the sample is convenient, can press the hemostasis, has alleviateed medical staff's the work degree of difficulty.

Description

A kind of hematology marrow puncture needle

Technical field

This utility model relates to technical field of medical instruments, specifically a kind of hematology marrow puncture needle.

Background technology

At present, the marrow puncture needle that hematology uses forms primarily of needle body, needle handle and nook closing member, generally reservoir is not set, or be provided with reservoir, but reservoir do not have graduation mark, sample inaccurate, bone marrow aspiration scope is less, is only limitted to taper place, and extraction efficiency is not high, pressing haemostatic cannot be carried out to site of puncture when carrying out bone marrow aspiration to patient, add work difficulty to medical worker.And after needle body fixing insertion human body, nook closing member is needed to extract, nook closing member is generally extracted out by manual by medical personnel, but there is certain unstability in manual operation, for the medical personnel that working experience is not enriched, in the process of extracting out, needle body can be caused unavoidably to tremble, thus cause suffering to patient.

Utility model content

The purpose of this utility model is the hematology's marrow puncture needle providing a kind of structure simple, easy to use, to solve the problem proposed in above-mentioned background technology.

For achieving the above object, this utility model provides following technical scheme:

A kind of hematology marrow puncture needle, comprise needle body, the inside of described needle body is provided with nook closing member, the left end of needle body is evenly distributed with circular hole, the outside of needle body is provided with protective cover near the position of right part, described protective cover is provided with pressing hole, the right of protective cover is provided with the reservoir communicated with needle body inside, described reservoir is provided with negative pressure sac, reservoir is also provided with graduation mark, the right-hand member of needle body is provided with needle handle, the passage be connected with needle lumen is provided with in described needle handle, described nook closing member one end is rotating to be extended in passage, the circumferentia of described passage is provided with the groove arranged along needle handle axis, chimeric dull and stereotyped in described groove, described dull and stereotyped one end is fixedly attached on nook closing member, described inside grooves is provided with spring near one end of needle body, described dull and stereotyped side is resisted against on spring, dull and stereotyped opposite side is provided with positive stop, groove is provided with catch away from one end of needle body, the side of described catch is provided with by the opening of expanding channels to groove.

As further program of the utility model: the left end of described spring is fixedly connected with needle handle.

As this utility model further scheme: described flat board is identical with the shape of the opening of groove.

Compared with prior art, the beneficial effects of the utility model are: be provided with needle handle, when nook closing member is extracted by needs, it is made to eject by rotating nook closing member, prevent medical personnel from the process of extracting, needle body is trembleed, unfamiliar medical personnel are suitable for too, avoid causing suffering to complication people, positive effect is produced to treatment.By being provided with the reservoir communicated with its inner chamber in needle body end, outside reservoir, be provided with graduation mark, conveniently accurately sample; Protective cover is set, pressing haemostatic can be carried out to site of puncture when carrying out bone marrow aspiration to patient; Uniform circular hole bottom needle body, expands bone marrow aspiration scope, can better bone marrow extraction, easy and simple to handle, time saving and energy saving when carrying out bone marrow aspiration to patient, alleviates the workload of medical worker.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model.

Fig. 2 is the structural representation of needle handle.

Fig. 3 is the right view of needle handle.

Detailed description of the invention

Below in conjunction with the accompanying drawing in this utility model embodiment, be clearly and completely described the technical scheme in this utility model embodiment, obviously, described embodiment is only this utility model part embodiment, instead of whole embodiments.Based on the embodiment in this utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of this utility model protection.

Refer to Fig. 1 ~ 3, in this utility model embodiment, a kind of hematology marrow puncture needle, comprise needle body 1, the inside of needle body 1 is provided with nook closing member 2, the left end of needle body 1 is evenly distributed with circular hole 3, expand bone marrow aspiration scope, can better bone marrow extraction, easy and simple to handle when carrying out bone marrow aspiration to patient, time saving and energy saving, alleviate the workload of medical worker.The outside of needle body 1 is provided with protective cover 4 near the position of right part, and protective cover 4 is provided with pressing hole 5, can carry out pressing haemostatic when carrying out bone marrow aspiration to patient to site of puncture, the right of protective cover 4 is provided with the reservoir 6 communicated with needle body 1 inside, and reservoir 6 is provided with negative pressure sac 8, and reservoir 6 is also provided with graduation mark 7, conveniently accurately samples, the right-hand member of needle body 1 is provided with needle handle 9, the passage with needle body 1 intracavity inter-connection is provided with in needle handle 9, nook closing member 2 one end is rotating to be extended in passage, the circumferentia of passage is provided with the groove 10 arranged along needle handle 9 axis, chimeric flat board 11 in groove 10, dull and stereotyped 11 one end are fixedly attached on nook closing member 2, the inner one end near needle body 1 of groove 10 is provided with spring 12, the left end of spring 12 is fixedly connected with needle handle 9, dull and stereotyped 11 sides are resisted against on spring 12, the opposite side of dull and stereotyped 11 is provided with positive stop 13, groove 10 is provided with catch away from one end of needle body 1, the side of catch is provided with by the opening 14 of expanding channels to groove 10, flat board 11 is identical with the shape of the opening of groove 10.When nook closing member 2 is extracted by needs, making it eject by rotating nook closing member 2, preventing medical personnel from the process of extracting, making needle body 1 tremble, unfamiliar medical personnel are suitable for too, avoiding causing suffering to complication people, positive effect is produced to treatment.

To those skilled in the art, obvious this utility model is not limited to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present utility model or basic feature, can realize this utility model in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in this utility model.Any Reference numeral in claim should be considered as the claim involved by limiting.

In addition, be to be understood that, although this description is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of description is only for clarity sake, those skilled in the art should by description integrally, and the technical scheme in each embodiment also through appropriately combined, can form other embodiments that it will be appreciated by those skilled in the art that.

Claims (3)

1. hematology's marrow puncture needle, comprise needle body (1), it is characterized in that, the inside of described needle body (1) is provided with nook closing member (2), the left end of needle body (1) is evenly distributed with circular hole (3), the outside of needle body (1) is provided with protective cover (4) near the position of right part, described protective cover (4) is provided with pressing hole (5), the right of protective cover (4) is provided with the reservoir (6) communicated with needle body (1) inside, described reservoir (6) is provided with negative pressure sac (8), reservoir (6) is also provided with graduation mark (7), the right-hand member of needle body (1) is provided with needle handle (9), the passage with needle body (1) intracavity inter-connection is provided with in described needle handle (9), described nook closing member (2) one end is rotating to be extended in passage, the circumferentia of described passage is provided with the groove (10) arranged along needle handle (9) axis, in described groove (10) chimeric dull and stereotyped (11), described flat board (11) one end is fixedly attached on nook closing member (2), the inner one end near needle body (1) of described groove (10) is provided with spring (12), described flat board (11) side is resisted against on spring (12), the opposite side of dull and stereotyped (11) is provided with positive stop (13), groove (10) is provided with catch away from one end of needle body (1), the side of described catch is provided with by the opening (14) of expanding channels to groove (10).

2. a kind of hematology according to claim 1 marrow puncture needle, is characterized in that, the left end of described spring (12) is fixedly connected with needle handle (9).

3. a kind of hematology according to claim 1 marrow puncture needle, is characterized in that, described flat board (11) is identical with the shape of the opening of groove (10).