CN211243633U - Improved skin breaking needle - Google Patents

Abstract

The utility model discloses a modified skin breaking needle, including a siphonozooid, the siphonozooid include syringe needle, needle body, needle handle, embedded groove and passageway, the syringe needle is the cavity taper shape, the circular cone bottom of syringe needle with the one end of needle body meets, the other end of needle body with the needle handle links to each other, be provided with two grips on the needle handle side, the syringe needle the needle body the needle handle the passageway is coaxial, the syringe needle the needle body be equipped with a groove on the needle handle lateral wall respectively, the embedded groove is by the consecutive constitution of above-mentioned three grooves, the embedded groove runs through the syringe needle the needle body the lateral wall of needle handle, the embedded groove with the passageway links to each other. The utility model discloses simple structure, the groove direct embedding of guide steel wire accessible side is broken skin needle, has reduced the possibility that inserts and extract the slippage of process guide steel wire.

Description

Improved skin breaking needle

Technical Field

The utility model relates to a medical appliance, in particular to an improved skin breaking needle.

Background

Deep venipuncture catheterization is a basic skill which must be mastered by all doctors, especially anesthetics. The main operation is to place a deep venous catheter (also called as a central venous catheter) into a deep vein (such as internal jugular vein, subclavian vein, femoral vein, etc.) at a certain position according to specific conditions and keep the deep venous catheter in place for a long time. It is mainly applicable to the following situations: 1. before operation, serious trauma, dehydration, shock, large blood loss, acute circulatory failure and the like exist; 2. major surgery, complicated or long surgery, and anticipated loss of body fluids or blood during the surgery; 3. the surgery itself can cause significant changes in hemodynamics; 4. blood dilution or controlled pressure reduction is needed in the operation; 5. in cases where urine volume is difficult to assess (e.g., renal failure patients), it is necessary to place; 6. performing volume evaluation on the central venous catheter; 7. the peripheral venous access is difficult to establish or the patient needs to rapidly replenish blood volume, while the periphery cannot meet the need of replenishing the fluid; 8. long-term transfusion or intravenous antibiotic treatment and total parenteral nutrition treatment are needed after operation; 9. a cardiac temporary pacemaker needs to be implanted through a central venous catheter; 10. repeated blood sampling or temporary hemodialysis is required; 11. and others: such as the prediction of high incidence of air embolism during operation or the need to aspirate air embolism, etc.

The skin-breaking needle is also called a deep vein puncture dilator and is an indispensable step in the deep vein puncture. During puncture, after the guide steel wire is placed in, the skin and subcutaneous tissues need to be expanded by a skin-breaking needle, the currently clinically used skin-breaking needle needs to penetrate through the tail end of the guide steel wire, the length of the guide steel wire is about 60cm, and in the penetrating process of the skin-breaking needle, due to the swinging of the tail end of the guide steel wire, a polluted area is easily touched, the risk of infection is increased, and the related sepsis of the catheter of a patient is easily caused. In the process of pulling out the skin breaking needle, the guide steel wire is easy to be pulled out together, so that the guide steel wire slips, the probability of repeated puncture is increased, the discomfort of a patient is caused, and the probability of occurrence of complications is increased.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the technology, the utility model provides an improved skin-breaking needle.

In order to achieve the above object, the present invention provides the following technical solutions:

an improved skin-breaking needle comprises a tubular body, wherein the tubular body comprises a needle head, a needle body, a needle handle, an embedded groove and a channel, the needle head is in a hollow conical shape, the conical bottom end of the needle head is connected with one end of the needle body, the needle body is in a hollow cylindrical shape, the other end of the needle body is connected with the needle handle, and the needle handle is in a ring shape;

the channel is a circular through hole, the needle head, the needle body, the needle handle and the channel are coaxial, and the channel penetrates through the axes of the needle head, the needle body and the needle handle;

the needle head, the needle body and the side wall of the needle handle are respectively provided with a groove, the three grooves are arranged on the same straight line, the embedded groove is formed by sequentially connecting the three grooves, and the embedded groove is arranged in parallel with the channel;

the embedded groove radially runs through the needle head, the needle body and the side wall of the needle handle, and the embedded groove is connected with the channel.

Preferably, two holding handles are arranged on the side surface of the needle handle.

Preferably, a guide wire is arranged in the channel.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses simple structure, the groove of guide steel wire accessible side directly imbeds brokenly skin needle, need not again with guide steel wire from the head cover to the tail, has both made things convenient for the operator, has reduced again in the former operation process because of the complicated complication that probably produces of operation, when extracting brokenly skin needle, also can extract brokenly skin needle again after the steel wire shifts out brokenly skin needle from the embedded groove with the guide steel wire, will guide the steel wire together to take out when preventing to extract brokenly skin needle, leads to guiding the steel wire slippage.

Drawings

Fig. 1 is a schematic top view of the present invention;

FIG. 2 is a schematic side view of the present invention;

fig. 3 is a perspective view of the present invention;

in the figure: 1. a needle head; 2. a needle body; 3. a needle handle; 4. a groove is embedded; 5. a channel; 301. a handle is held.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the embodiments of the present invention and the accompanying drawings, and obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-3, the present invention provides a technical solution: an improved skin-breaking needle comprises a tubular body, wherein the tubular body comprises a needle head 1, a needle body 2, a needle handle 3, an embedded groove 4 and a channel 5, the needle head 1 is hollow conical, the conical bottom end of the needle head 1 is connected with one end of the needle body 2, the needle body 2 is hollow cylindrical, the other end of the needle body 2 is connected with the needle handle 3, and the needle handle 3 is annular;

the channel 5 is a circular through hole, the needle head 1, the needle body 2, the needle handle 3 and the channel 5 are coaxial, and the channel 5 penetrates through the axes of the needle head 1, the needle body 2 and the needle handle 3;

the side walls of the needle head 1, the needle body 2 and the needle handle 3 are respectively provided with a groove, the three grooves are arranged on the same straight line, the embedded groove 4 is formed by sequentially connecting the three grooves, and the embedded groove 4 is arranged in parallel with the channel 5;

the embedded groove 4 radially penetrates through the needle head 1, the needle body 2 and the side wall of the needle handle 3, and the embedded groove 4 is connected with the channel 5.

Preferably, two holding handles are arranged on the side surface of the needle handle.

Preferably, a guide wire is arranged in the channel 5.

The working principle is as follows: when penetrating the skin breaking needle, one hand grips the guide steel wire, and the other hand will the skin breaking needle of the utility model is embedded into the channel from the side surface of the guide steel wire, so as to carry out the skin breaking operation. The caliber of the embedded groove can be enlarged by a small degree by pressing the holding handle with force, and the guide steel wire is more conveniently put in;

when the skin breaking needle is pulled out, the guide steel wire is moved out of the skin breaking needle from the embedded groove and then the skin breaking needle is pulled out, so that the guide steel wire is prevented from being taken out together when the skin breaking needle is pulled out, and the guide steel wire is prevented from slipping.

Claims (3)

1. An improved percutaneous needle comprising a tubular body, characterized in that: the tubular body comprises a needle head (1), a needle body (2), a needle handle (3), an embedded groove (4) and a channel (5), the needle head (1) is hollow conical, the conical bottom end of the needle head (1) is connected with one end of the needle body (2), the needle body (2) is hollow cylindrical, the other end of the needle body (2) is connected with the needle handle (3), and the needle handle (3) is annular;

the channel (5) is a circular through hole, the needle head (1), the needle body (2), the needle handle (3) and the channel (5) are coaxial, and the channel (5) penetrates through the axes of the needle head (1), the needle body (2) and the needle handle (3);

the side walls of the needle head (1), the needle body (2) and the needle handle (3) are respectively provided with a groove, the three grooves are arranged on the same straight line, the embedded groove (4) is formed by sequentially connecting the three grooves, and the embedded groove (4) is arranged in parallel with the channel (5);

the embedded groove (4) radially penetrates through the needle head (1), the needle body (2) and the side wall of the needle handle (3), and the embedded groove (4) is connected with the channel (5).

2. An improved percutaneous needle as in claim 1, wherein: two holding handles (301) are arranged on the side surface of the needle handle (3).

3. An improved percutaneous needle as in claim 1, wherein: and a guide steel wire is arranged in the channel (5).

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