CN112315554A

CN112315554A - Puncture needle

Info

Publication number: CN112315554A
Application number: CN202011283795.3A
Authority: CN
Inventors: 张克磊; 王沁; 王宝中; 顾伟; 朱瑜; 苏杨
Original assignee: Suzhou Leapmed Healthcare Corp
Current assignee: Suzhou Leapmed Healthcare Corp
Priority date: 2020-11-17
Filing date: 2020-11-17
Publication date: 2021-02-05

Abstract

The invention discloses a puncture needle, comprising: the outer needle assembly comprises an outer needle base and an outer needle positioned at one end of the outer needle base, and the inner needle assembly comprises an inner needle base and an inner needle positioned at one end of the inner needle base; the inner needle point exceeds the outer needle, and the inner needle point is conical. The invention can reduce the resistance of the puncture needle when the puncture needle is inserted into the human body, improve the convenience of the operating personnel and the accuracy of the operation, relieve the pain of the patient and improve the operation efficiency.

Description

Puncture needle

Technical Field

The invention relates to the field of medical instruments, in particular to a puncture needle for puncture/drug injection/drainage and suction of body fluid.

Background

Bone and soft tissue tumors are diseases seriously harming human health and life, the incidence rate gradually rises in recent years, the onset age gradually declines, and early detection, correct diagnosis and timely treatment have important influence on prognosis. The correct diagnosis requires three combinations of clinical, imaging and pathology. Among them, pathological diagnosis plays a key role in the selection of a treatment regimen. Needle biopsy is the primary way to obtain a pathological diagnosis.

During the puncture/drug injection/body fluid drainage suction operation, the puncture needle needs to be punctured into the human body. The common puncture needle product generally adopts a structure of an oblique plane, so that the resistance is larger when the common puncture needle is punctured into a human body, the human body can be punctured by using larger strength, the problem of unsmooth needle insertion is easily caused, and the pain of a patient is increased.

Disclosure of Invention

In view of this, the present invention provides a puncture needle, the inner needle head of which is designed to be a tapered structure, so as to effectively reduce the resistance of the puncture needle when the puncture needle is inserted into the human body, greatly increase the convenience of the operating personnel and the accuracy of the operation, alleviate the pain of the patient, and improve the operation efficiency.

To achieve the above objects, according to one aspect of the present invention, a puncture needle is provided.

The invention provides a puncture needle, comprising: the outer needle assembly comprises an outer needle base and an outer needle positioned at one end of the outer needle base, and the inner needle assembly comprises an inner needle base and an inner needle positioned at one end of the inner needle base; the inner needle point exceeds the outer needle, and the inner needle point is conical.

Optionally, the inner needle tip is a conical or triangular pyramid structure.

Optionally, a hand position for assisting in puncturing operation is convexly arranged on the outer wall of the outer needle seat, and the hand position is symmetrically arranged by taking the axis of the outer needle seat as a center.

Optionally, the outer wall of one end of the outer needle far away from the outer needle seat is provided with a scribed line.

Optionally, the hand position is perpendicular to the outer hub.

Optionally, the outer needle base is a hollow structure, and the hollow structure is communicated with the hollow structure of the outer needle.

Optionally, the score line is a spiral line.

Optionally, the spirals are arranged crosswise.

Optionally, a buoy is arranged at the joint of the outer needle and the outer needle seat, and the outer needle penetrates through the buoy and then is connected with the outer needle seat.

According to the technical scheme of the invention, the inner needle head of the puncture needle is designed into a conical structure, so that the resistance of the puncture needle in the human body during needle insertion can be effectively reduced, the convenience of operating personnel and the accuracy of operation are improved, the pain of a patient is relieved, and the efficiency of the operation is accelerated.

Drawings

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

FIG. 1 is one of the exploded views of a needle in accordance with an embodiment of the present invention;

FIG. 2 is a second exploded view of the needle of the present embodiment;

FIG. 3 is a schematic view of the inner needle tip of the lancet of the present invention in a triangular pyramid configuration;

FIG. 4 is a schematic view of the inner needle tip of the needle of the embodiment of the present invention in a conical configuration;

fig. 5 is a schematic view of the structure of a puncture needle according to an embodiment of the present invention.

Description of reference numerals: the hand-held needle comprises an inner needle assembly 1, an inner needle seat 11, an inner needle 12, an inner needle point 121, an outer needle assembly 2, an outer needle seat 21, a hand position 211, an outer needle 22, an outer needle outlet 221, a marking line 222, a buoy 3 and a protective sleeve 4.

Detailed Description

Exemplary embodiments of the present invention are described below with reference to the accompanying drawings, in which various details of embodiments of the invention are included to assist understanding, and which are to be considered as merely exemplary. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the invention. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness.

Referring to fig. 1 to 5, a puncture needle of the present invention includes: the outer needle assembly 2 and the inner needle assembly 1 sleeved in the outer needle assembly 2, the outer needle assembly 2 comprises an outer needle base 21 and an outer needle 22 positioned at one end of the outer needle base 21, and the inner needle assembly 1 comprises an inner needle base 11 and an inner needle 12 positioned at one end of the inner needle base 11; the inner needle tip 121 protrudes beyond the outer needle 22 and the inner needle tip 121 is tapered. In particular, the inner needle tip 121 is a conical or triangular pyramid structure. When the medical staff pushes the puncture needle to advance in the human body, the resistance during the needle insertion is greatly reduced, the convenience of the operating staff and the accuracy of the operation are greatly improved, the pain of the patient is relieved, and the efficiency of the operation is accelerated.

The protrusion is provided with the hand position 211 that is used for assisting the puncture operation on the outer wall of outer needle file 21 of this application embodiment, and the axis of needle file 21 outside hand position 211 sets up for central symmetry, and the hand position can be two, and radial relative setting along outer needle file 21, this pjncture needle is when using, and operating personnel passes through two hand positions, can with the pjncture needle is firmly held, and convenient operation, the hand position also can be a holistic cake structure, when propelling movement this pjncture needle, can be better bulldoze the application of force, puncture safer, and before preparing puncture hand, because the axis of needle file 21 outside the hand position sets up for central symmetry, consequently can place firmly on the operating table, can not roll easily.

The hand position 211 is of a plate-shaped structure and is perpendicular to the outer needle seat 21, so that the puncture needle can be held by an operator conveniently, the operator is prevented from sliding off in the operation process, and the hand position can be made into a rectangular plate shape, a polygonal plate shape and other shapes according to actual needs or habits of the operator.

The outer needle holder 21 has a hollow structure, and the hollow structure is communicated with the hollow structure of the outer needle 22. The buoy 3 is arranged at the joint of the outer needle 22 and the outer needle holder 21, and the outer needle 22 penetrates through the buoy 3 and then is connected with the outer needle holder 21.

The outer wall of one end of the outer needle 22 far away from the outer needle seat 21 is provided with a scribed line 222, the scribed line 222 is a spiral line, and the spiral line is arranged in a crossed manner; the scribed lines 222 may also be circular lines arranged in parallel; when the puncture needle is used for puncture surgery, an operator holds the hand position 211 tightly and forcibly punctures the puncture needle into a human body under the assistance of the hand position, when the puncture needle enters the position near a focus of the human body, the probe converter emits ultrasonic waves and irradiates the surface of the outer needle 22, particularly in a spiral line, ultrasonic signals can be reflected to the probe converter more through reflection at a certain angle, images displayed by ultrasonic imaging equipment are very clear, the position where the outer needle 22 reaches can be monitored in real time, sampling of the thyroid gland, medicine injection after the inner needle is taken out, drainage suction of body fluid and the like can be carried out at the moment (the hand position is not needed during injection or suction).

The end of the outer needle 22 far away from the outer needle seat 21 is an outer needle outlet 221 with a needle structure, and the spiral line is close to the outer needle outlet. By adopting the arrangement, because ultrasonic signals are more reflected to the probe converter near the spiral line, the puncture condition of the outer needle outlet can be clearly displayed on the ultrasonic imaging equipment in real time, and the judgment and the next operation of medical personnel are facilitated.

The end of the inner needle 12 far away from the inner needle seat 11 is an inner needle outlet which is in a needle-shaped structure the same as the outer needle outlet, and the design is favorable for puncture. The inner needle base 11 comprises a second holding part and a connecting part located at one end of the second holding part, the connecting part is connected with the inner needle 12, when the inner needle assembly 1 is combined with the outer needle assembly 2, the inner needle 12 penetrates through the outer needle base 21 and the outer needle 22, and the inner needle base 11 is connected with the outer needle base 21 in a buckling mode.

The puncture needle also comprises a protective sleeve 4, the protective sleeve 4 is sleeved on the outer needle and buckled with the buoy 3, and the protective sleeve 4 can be used for protecting the puncture needle so as to prevent the puncture needle from being polluted when not in use.

When the puncture needle is used, when medical personnel push the puncture needle to advance in a human body, the resistance during needle insertion is reduced, the convenience of operating personnel and the accuracy of operation are improved, the pain of a patient is relieved, and the efficiency of the operation is improved.

The above-described embodiments should not be construed as limiting the scope of the 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, and 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 puncture needle, comprising: the outer needle assembly comprises an outer needle base and an outer needle positioned at one end of the outer needle base, and the inner needle assembly comprises an inner needle base and an inner needle positioned at one end of the inner needle base; characterized in that the inner needle point exceeds the outer needle and is conical.

2. The needle of claim 1 wherein the inner needle tip is a conical or triangular pyramid configuration.

3. A puncture needle according to claim 1 or 2, wherein the outer wall of the end of the outer needle remote from the outer needle holder is provided with score lines.

4. The puncture needle according to claim 3, wherein a hand position for assisting the puncture operation is projected from the outer wall of the outer needle holder, and the hand position is arranged symmetrically with respect to the axis of the outer needle holder.

5. A puncture needle according to claim 4, characterized in that the hand position is perpendicular to the outer needle holder.

6. The needle of claim 1 wherein the outer hub is hollow and the hollow is continuous with the hollow of the outer needle.

7. A puncture needle according to claim 3, characterized in that the score line is a spiral.

8. A puncture needle according to claim 7, characterized in that the spiral threads are arranged crosswise.

9. The needle of claim 1 wherein a float is provided at the junction of the outer needle and the outer hub, and the outer needle extends through the float and then connects to the outer hub.