CN217390759U

CN217390759U - Biopsy gun

Info

Publication number: CN217390759U
Application number: CN202220245718.7U
Authority: CN
Inventors: 朱瑜; 王沁; 王宝中; 顾伟
Original assignee: Suzhou Leapmed Healthcare Corp
Current assignee: Suzhou Leapmed Healthcare Corp
Priority date: 2022-01-29
Filing date: 2022-01-29
Publication date: 2022-09-09
Anticipated expiration: 2032-01-29

Abstract

The utility model discloses a biopsy gun, including protective case and protective sheath seat, the outer needle outside of pjncture needle is worn to locate by the protective sheath seat for fixed protective case, the buoy is located and is compared the position of keeping away from the syringe needle in the protective sheath seat on the outer needle. The utility model discloses biopsy gun, through protecting the sleeve seat, can preset the buoy on the pjncture needle after installing protective case, the doctor can conveniently use after pulling away protective case and protecting sleeve seat when using the buoy; the step of installing the buoy on the puncture needle by a doctor is saved, and the puncture needle is convenient to use.

Description

Biopsy gun

Technical Field

The utility model relates to the technical field of medical equipment, in particular to biopsy gun.

Background

The ultrasonic imaging device can display the condition of a focus area in a patient body in real time, and guide the puncture needle to a target position of a human body under the ultrasonic guidance so as to realize cytological biopsy, histological biopsy, cyst suction, treatment and the like, and is an important disease monitoring and treatment means at present.

The puncture needle of present can be in order to protect its needle point when leaving the factory, and a protective sleeve is established to the outside cover of outer needle usually, and protective sleeve usually can the joint on a fixing base on the biopsy rifle, can conveniently take off when needs use.

Meanwhile, a buoy is usually used for calibrating the puncture needle or assisting in judging the puncture depth of the puncture needle, so that the position of the puncture needle can be conveniently marked. The current buoy device is generally in a ring shape and mainly comprises a plastic ring structure buoy and a torsion spring structure buoy. The plastic ring structure buoy is sleeved on the puncture needle through the friction force of the buoy. The torsion spring structure buoy is sleeved on the puncture needle, and the inner diameter is changed when the torsion spring is pressed or loosened so as to realize locking or unlocking relative to the puncture.

Because the buoy can not be pre-arranged on the puncture needle due to the existence of the protective sleeve, the buoy can be arranged on the puncture needle only when the buoy needs to be used, and the use is troublesome.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a biopsy gun is equipped with the protection sleeve, can install protective case after the buoy presets on the pjncture needle, and the doctor can use the buoy after pulling away protective case and protection sleeve when using, has saved the step that the pjncture needle was installed to the doctor with the buoy, makes things convenient for the use of pjncture needle.

The utility model provides a following technical scheme: a biopsy gun comprising a protective sleeve, a protective hub, wherein: the protective sleeve seat penetrates through the outer surface of the outer needle of the puncture needle and can move relative to the outer needle; the protective sleeve seat is used for fixing the protective sleeve.

Optionally, a buoy for indicating the puncture depth of the puncture needle is arranged on the puncture needle of the biopsy gun; the buoy is arranged on the outer needle and is far away from the needle head compared with the protective sleeve seat.

Optionally, the protective hub is an interference fit with the outer needle.

Optionally, the protective sheath is concentric with the puncture needle.

Optionally, the open end of the protection sleeve is sleeved outside the protection sleeve seat.

Optionally, the outer wall of the protective sheath base is provided with a plurality of step surfaces with gradually increasing outer diameters from near to far away from the puncture needle head.

Optionally, the center of one end of the protective sheath base away from the puncture needle head is provided with an inward concave introduction groove.

Optionally, the inner wall surface of the introduction groove is a conical surface, the vertex of the conical surface is located on the axis of the puncture needle, and the opening of the conical surface is located at one end far away from the needle head of the puncture needle.

Optionally, the outer wall of the protective socket is provided with a conical surface facilitating insertion of the protective sleeve.

According to the technical scheme of the utility model, the biopsy gun comprises a protective sleeve and a protective base, the protective base is arranged outside the outer needle of the puncture needle in a penetrating way and can move relative to the outer needle, and the protective base is used for fixing the protective sleeve; the buoy is arranged on the outer needle and is far away from the needle head compared with the protective sleeve seat. The medical doctor can use after pulling away protective sleeve and protective sheath seat when using the buoy, has saved the step that the pjncture needle was installed to the doctor with the buoy, makes things convenient for the use of pjncture needle.

Drawings

For purposes of illustration and not limitation, the present invention will now be described in accordance with its preferred embodiments, particularly with reference to the accompanying drawings, in which:

fig. 1 is a schematic structural view of a biopsy gun according to an embodiment of the present invention;

FIG. 2 is a sectional view showing an assembling structure of the puncture needle sheath according to the embodiment of the present invention;

fig. 3 is a partially enlarged view of fig. 2.

1-an inner needle, 2-an outer needle, 3-a protective sleeve, 4-a protective sleeve seat, 5-a buoy, 6-an introduction groove, 7-a needle sleeve, 8-a first step surface and 9-a second step surface.

Detailed Description

In the embodiment of the present invention, the biopsy gun is provided with a protective sleeve holder, and the buoy can be used after the protective sleeve and the protective sleeve holder are pulled away, as will be described in detail below.

As shown in fig. 1 to 3, the utility model discloses a biopsy gun, wear the protective sheath seat 4 of establishing a fixed protective sleeve 3 outside outer needle 2, realize fixing protective sleeve 3 card on protective sheath seat 4, can take off protective sheath seat 4 simultaneously when protective sleeve 3 is taken off to needs, formed a pjncture needle protective sheath assembly structure like this.

The connection relation between the protective sleeve seat 4 and the outer needle 2 of the puncture needle is interference fit, so that the protective sleeve seat is prevented from easily sliding on the puncture needle; at the same time, the protective sleeve holder 4 can be moved over the outer needle 2 under the application of force by hand.

The protective sleeve seat 4 is provided with a plurality of steps to be suitable for the protective sleeves 3 with different diameters. One end of the protective sheath seat 4 is provided with a concave inclined plane leading-in groove 6, which is convenient for the puncture needle to penetrate.

The float 5 is located at a position of the outer needle 2 remote from the needle head compared to the protective hub 4, i.e. inside the protective hub 4, and the protective hub 4 can be removed from the outer needle 2, so that the float 5 can be conveniently used without having to mount the float 5 on the puncture needle again.

According to the utility model discloses embodiment's technical scheme, biopsy gun wears to establish a fixed protective case's protection sleeve seat outside outer needle, will protect the sleeve pipe card to realize fixing on the protection sleeve seat, can preset the buoy and install protective case after on the pjncture needle, and the doctor can use after pulling away protective case and protection sleeve seat when using the buoy, has saved the step that the pjncture needle was installed to the doctor with the buoy, convenient operation.

The above detailed description does not limit the scope of the present invention. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions can occur, depending on design requirements and other factors. Any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A biopsy gun, characterized in that, includes protective sleeve (3), protective housing (4), wherein:

the protective sleeve seat (4) is arranged outside the outer needle (2) of the puncture needle in a penetrating way and can move relative to the outer needle (2);

the protective sleeve seat (4) is used for fixing the protective sleeve (3).

2. The biopsy gun of claim 1,

a buoy (5) for indicating the puncture depth of the puncture needle is arranged on the puncture needle of the biopsy gun;

the buoy (5) is arranged on the outer needle (2) and is far away from the needle head compared with the protective sleeve seat (4).

3. Biopsy gun according to claim 1, wherein the protective hub (4) is an interference fit with the outer needle (2).

4. Biopsy gun according to claim 1, wherein the protective sheath (4) is coaxial with the puncture needle.

5. Biopsy gun according to claim 1, wherein the open end of the protection sleeve (3) is sleeved outside the protection sleeve holder (4).

6. Biopsy gun according to claim 5, wherein the outer wall of the protective sheath (4) is provided with a plurality of stepped surfaces with gradually increasing outer diameter from the proximal to the distal of the needle tip.

7. Biopsy gun according to any of claims 1-6, wherein the protective sheath (4) is provided with an inwardly recessed lead-in groove (6) in the centre of the end remote from the puncture needle tip.

8. Biopsy gun according to claim 7, wherein the inner wall surface of the introduction groove (6) is a conical surface, the apex of which is located on the axis of the puncture needle and the opening of which is located at the end remote from the needle tip of the puncture needle.

9. Biopsy gun according to claim 5, wherein the outer wall of the protective sleeve holder (4) is provided with a conical surface facilitating insertion of the protective sleeve (3).