JP2597672Y2 - Medical needle - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a medical needle for inserting a needle tip into a human spine to collect spinal fluid and inject a drug such as anesthetic into a nerve in the spine.

[0002]

2. Description of the Related Art A conventional medical needle comprises a hard needle having a grip at the base end of a hard needle body, and a connecting portion of a syringe provided on a spinal needle body inserted into the hard needle body. A spinal needle is provided, and the inner core that inserts into the epidural needle body and closes the needle tip of the epidural needle body, and the inner needle that is inserted into the spinal needle body and closes the needle tip of the spinal needle body, respectively Is provided. Insert the core into the hemp needle and insert it into the spine of the human body with the needle tip of the hemp needle closed,
It reaches the epidural space of the spine. Next, pull out the core from the epidural needle that pierces the needle tip to the epidural space of the spine,
Insert the inner needle and insert the spinal needle whose needle tip is closed into the epidural needle, project the needle tip of the spinal needle from the needle tip of the epidural needle, and attach the needle tip of the spinal needle subarachnoid. Insert into the cavity. Next, the inner needle is withdrawn from the spinal needle, the syringe is connected to the connection portion of the syringe provided on the spinal needle, and a drug such as anesthesia of the syringe is injected to inject the drug into the subarachnoid space through the spinal needle. Had been injected.
Alternatively, spinal fluid was collected using a syringe.

[0003]

However, in the conventional medical needle, the spinal needle body inserted into the epidural needle body is easy to move with a light force inside the epidural needle. The movement procedure could be unsuccessful during operations such as injecting other drugs, thereby increasing the risk of spinal injury. In addition, the length of the spinal needle inserted into the hemp needle protruding from the hemp needle is constant at about 7 mm, so the procedure may end unsuccessfully because the length is not enough. I was The problem to be solved by the present invention is to solve the above-mentioned drawbacks, and the spinal needle inserted into the epidural needle does not move, and it is possible to accurately inject anesthesia into the spine, thereby increasing the success rate of the procedure. It is to provide a medical needle excellent in safety.

[0004]

The gist of the present invention to solve the above problems is as follows: 1) A hemp needle having a grip at the base end of a hemp needle body, and a spinal needle inserted into the hemp needle In a medical needle composed of a spinal needle provided with a connection portion of a syringe on a needle main body, a fixing means for fixing the spinal needle inserted into the epidural needle to a grip portion of the epidural needle is taken. Characteristic medical needle 2) A hemp needle having a grip at the base end of a hemp needle main body, and a spinal needle having a syringe connection part in a spinal needle main body inserted into the hemp needle In the medical needle comprising: a separate fixing device for fixing the spinal needle inserted into the hard liner needle to the hard liner needle is detachably provided on the grip portion. is there.

[0005]

[Function] The present invention inserts a spinal needle into the spinal needle of the human body, inserts the spinal needle into the spinal needle inserted into the spine, and inserts the spinal needle from the needle point of the main needle. Protrude the needle tip of the main body. Next, the spinal needle is fixed to the hemp needle by a fixing means provided on the grip portion of the hemp needle. Next, the syringe is connected to the connection portion provided on the spinal needle, and the drug in the syringe is injected. Alternatively, a spinal fluid sampling operation is performed. The hemp needle main body is generally in close contact with the muscles of the human body and does not move with a light force. The spinal needle main body is fixed to fixing means provided at the holding part of the hemp. Thus, the needle tip of the spinal needle main body protruding from the needle tip of the epidural needle main body does not move and does not cause damage to the spine of the human body, thereby increasing the success rate of the procedure. A similar effect can be obtained by fixing the spinal needle inserted into the hemp needle to the hemp needle via a separate fixing tool at the grip part of the hemp needle.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a partially cutaway plan view of the medical needle of the present embodiment, FIG. 2 is a side view of a state in which a spinal needle is fixed to the hard needle of the present embodiment, and FIG. FIG. 4 is a plan view of the inner needle of the present embodiment, FIG. 5 is an explanatory view of a state where the hard needle of the present embodiment is inserted into the spine, and FIG. FIG. 7 is an explanatory view of a state in which the spinal needle is removed and the spinal needle is inserted, FIG. 7 is an explanatory view of a state in which the inner needle is pulled out from the spinal needle of the present embodiment, and FIG. 8 is a state in which anesthesia is injected into the spinal needle of the present embodiment. , FIG. 9 is a partially cutaway plan view of a medical needle of another embodiment, FIG. 10 is a plan view of a center core of another embodiment, and FIG. 11 is a plan view of an inner needle of another embodiment. is there.

In the figure, reference numeral 1 denotes a medical needle, 2 denotes a hemp needle inserted into the spine of a human body, 2a denotes a hard cylindrical needle body having a long cylindrical shape, and 3 denotes a hard needle needle body 2a. 4 is a scale to check the length of the human body when it is inserted into the spine.
The gripping portion 5 provided at the base end of the wing is attached to the gripping portion 4 of the epidural needle 2 and serves as a push plate when the epidural needle body 2a is inserted into the spine of the human body. A fixing window provided in the gripping portion 4 of the hemp needle 2, a center 7 inserted into the hemp needle 2 to close the needle tip of the hemp needle main body 2 a, a spinal needle 8, a hard needle 2 a Needle body 9 to be inserted into the needle, 9 a syringe, 10 a connection portion provided at the base end of the spinal needle 8 for connecting the syringe 9 to the spinal needle 8, and 11 a hard linen inserted into the hard needle 2. Needle body 2a
, 12 is the epidural space of the spine 12, 12 is the cauda equina nerve, and 24 is the cerebrospinal fluid.

In this embodiment, as shown in FIGS. 1, 2, 3 and 4, a scale 3 is provided on a hard linen needle body 2a which is inserted into a spine of a human body.
And a gripping portion 4 is provided at the base end of the hemp needle main body 2a to form the hemp needle 2. A wing plate 5 is detachably provided on the gripping portion 4 of the hemp needle 2, and the side of the gripping portion 4 is provided. A fixing window 6 is provided in the section.
A spinal needle main body 8a having a size to be inserted into the epidural needle main body 2a is provided, and a connecting portion 10 for connecting a syringe 9 is provided at a proximal end of the spinal needle main body 8a, and a spine inserted into the epidural needle 2 is provided. Hemp needle 8
To form The medical needle 1 of the present embodiment is constituted by the hard liner needle 2 and the spinal needle 8 formed as described above, and the medical needle 1 is used by using the center core 17 and the inner needle 19.

As a method of using this embodiment, FIGS.
As shown in FIGS. 7 and 8, the core 7 is inserted into the epidural needle 2 to close the needle tip of the epidural needle main body 2a, and the epidural needle main body 2a is inserted into the spine 12 of the human body. The needle point of 2a is made to reach the epidural space 13. Next, the core 7 is pulled out from the hemp needle 2,
The spinal needle 8 in which the inner needle 11 is inserted and the needle tip is closed is inserted into the epidural needle 2, and protrudes from the needle tip of the epidural needle main body 2 a to reach the cauda equina 14. The spinal needle 8 inserted into the hemp needle 2 is inserted through the introduction groove 6a provided at the base end of the hemp needle 2, and the spinal needle body is bent and locked in the fixing window 6. Thus, the spinal needle 8 can be fixed to the hemp needle 2.
After the spinal needle 8 is fixed to the epidural needle 2, the spinal needle 8 is pulled out from the epidural needle 2. Then, the cerebrospinal fluid 24 flows out because the tip of the spinal needle 8 has reached the epidural space 13. Next, the syringe 9 is connected to the connection portion 10 of the spinal needle 8,
The anesthesia 15 of the syringe 9 is injected into the spinal needle 8. The injected anesthesia is ejected from the tip of the spinal needle 8 and injected into the cauda equina 14. The cerebrospinal fluid 24 is also collected by the syringe 9.

In this embodiment, when the spinal needle 8 is fixed to the fixing window 6 of the epidural needle 2, the needle tip of the spinal needle main body 8a protruding from the needle tip of the epidural needle main body 2a moves. There is almost no risk of damaging the cauda equina 14 of the human body. In addition, during various operations such as injection of a drug such as anesthesia, the spinal needle body 8a is fixed and does not move, so that the success rate of the procedure is increased, and the procedure can be easily learned.

As another example of the present invention, FIGS.
As shown in FIG. 7, a hard linen needle 16 having a gripping portion 22 provided on a hard linen needle body 16a, and a connecting portion 23 of a syringe provided on a spinal needle body 18a inserted into the hard linen needle body 16a. A spinal needle 18 is provided. In order to fix the spinal needle 18 inserted in the hemp needle 16 to the hemp needle 16, a fixing tool 21 provided with a fixing window 20 and an introduction groove 25 is held by a grip portion 22 of the hemp needle 16.
The medical supplies 15 are configured so as to be detachably attached to the medical supplies. When this is used, the center core 17 and the inner needle 19 are used for the medical needle 15, and the medical needle 15 is used in the same manner as in the embodiment, and the same effect as in the embodiment is exhibited.

[0012]

According to the present invention, since the spinal needle is fixed to the grasping portion of the epidural needle, the needle tip of the spinal needle body protruding from the needle tip of the epidural needle body does not move. The danger of damaging the cauda equina of the human body is almost eliminated. In addition, the success rate of the procedure increased because the spinal needle was fixed and did not move during various operations such as injecting drugs such as anesthesia and collecting spinal fluid, and the operation became possible without much skill. .

[Brief description of the drawings]

FIG. 1 is a partially cutaway plan view of a medical needle according to the present embodiment.

FIG. 2 is a side view of a state in which a spinal needle is fixed to a hard liner needle of the embodiment.

FIG. 3 is a plan view of a center core of the embodiment.

FIG. 4 is a plan view of the inner needle of the embodiment.

FIG. 5 is an explanatory view showing a state in which the epidural needle of the embodiment is inserted into a spine.

FIG. 6 is an explanatory view showing a state in which a spinal needle is inserted by removing a core from a hard liner needle according to the embodiment.

FIG. 7 is an explanatory view showing a state in which the inner needle is pulled out from the spinal needle of the embodiment.

FIG. 8 is an explanatory diagram of a state in which anesthesia is injected into the spinal needle of the embodiment.

FIG. 9 is a partially cutaway plan view of a medical needle according to another embodiment.

FIG. 10 is a plan view of a center core of another embodiment.

FIG. 11 is a plan view of an inner needle according to another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Medical needle 2 Hard linen needle 2a Hard linen needle main body 3 Scale 4 Gripping part 5 Wing plate 6 Fixing window 6a Introducing groove 7 Core 8 Spinal needle 8a Spinal needle main body 9 Syringe 10 Connection part 11 Inner needle 12 Spine Part 13 epidural space 14 cauda equina 15 medical supplies 16 hard needle 16a hard needle body 17 middle core 18 spinal needle 18a spinal needle body 19 inner needle 20 fixing window 21 fixing tool 22 gripping part 23 connecting part 24 Cerebrospinal fluid 25 Introductory groove

Claims (2)

(57) [Scope of request for utility model registration] 1. A medical system comprising: a hemp needle having a grip at a base end of a hemp needle main body; and a spinal needle having a syringe connection part provided on a spinal needle main body inserted into the hemp needle. A medical needle, wherein a fixing means for fixing the spinal needle inserted into the hemp needle to a grip portion of the hemp needle is provided. 2. A medical system comprising: a hemp needle provided with a grasping portion at a base end of a hemp needle main body; and a spinal needle provided with a syringe connection portion in a spinal needle main body inserted into the hemp needle. A medical needle, wherein a separate fixing tool for fixing the spinal needle inserted into the hemp needle to the hemp needle is detachably provided on the grip portion.