CN216908060U - Puncture needle for local anesthesia - Google Patents
Puncture needle for local anesthesia Download PDFInfo
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- CN216908060U CN216908060U CN202120032986.6U CN202120032986U CN216908060U CN 216908060 U CN216908060 U CN 216908060U CN 202120032986 U CN202120032986 U CN 202120032986U CN 216908060 U CN216908060 U CN 216908060U
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- needle body
- needle
- tip
- medicine
- local anesthesia
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Abstract
The utility model provides a puncture needle for local anesthesia, which comprises a needle seat, a needle body, an injection hole and a tip, wherein the needle seat comprises an open proximal end with a cavity inside, a distal end and a through channel, the needle body comprises a proximal end, a distal end and a medicine cavity inside, the distal end of the needle seat is connected with the proximal end of the needle body, the tip is connected with the distal end of the needle body, the tip is a conical tip with a hollow inside and a closed front end, the injection hole comprises a ring surface side hole and a tip side hole, the distal end of the needle body is annularly provided with a plurality of ring surface side holes, the tip side holes are uniformly arranged on the side surface of the tip, the channel is communicated with the medicine cavity, and the injection hole is communicated with the medicine cavity. The utility model increases the diffusion surface of the medicine entering the human tissue, avoids the pain caused by the concentrated injection of the medicine, increases the anesthesia effect, shortens the time for absorbing the medicine, reduces the dosage of the anesthetic, improves the operation efficiency of the patient and reduces the complications in the operation.
Description
Technical Field
The utility model belongs to the technical field of medical instrument injectors, and particularly relates to a puncture needle for local anesthesia.
Background
The puncture needle for anesthesia that commonly used among the prior art is only seted up a aperture at the head point, when carrying out the drug release, the medicine flows out from the aperture, and the medicine area of action is limited, only is located the point, influences medicine absorption speed and effect, especially can make the anesthesia medicine distribute inhomogeneous, the effect is limited when carrying out the injection of anesthesia medicine, and anesthesia effect is poor, prolongs anesthesia time, has increased the painful sensation of patient's operation.
SUMMERY OF THE UTILITY MODEL
The utility model provides a puncture needle for local anesthesia, which increases the range of drug action and enhances the anesthesia effect.
The technical scheme of the utility model is as follows: the utility model provides a pjncture needle that local anesthesia used, includes needle file, needle body, injection orifice, pointed end, the needle file includes that an inside has the opening near-end, a terminal and a passageway that link up in chamber, the needle body includes near-end, terminal and inside medicine cavity, the terminal of needle file and the near-end of needle body are connected, pointed end and the end-to-end connection of needle body, the pointed end is inside cavity front end confined conical tip, the injection orifice includes anchor ring side opening, pointed end side opening, the terminal annular of needle body sets up a plurality of anchor ring side openings, the even setting of pointed end side opening is on the side of pointed end, passageway and medicine cavity UNICOM, injection orifice and medicine cavity UNICOM.
Further, the length of the needle body is 15-20 cm.
Further, the tip has a length of 2 cm.
The scheme is further characterized by further comprising scales, wherein the scales start from the front end of the tip to the whole length of the needle body, and the front end of the tip is a scale 0.
Further, the tip-side hole is circular or elliptical.
In a scheme, the side hole of the ring surface is of a cylindrical structure and is communicated from the outer wall of the medicine cavity to the outer wall of the needle body.
The scheme is further that the side hole of the ring surface is in a conical structure, the larger opening end of the conical structure is positioned on the outer wall surface of the needle body, and the smaller opening end of the conical structure is positioned on the inner wall surface of the needle body.
Further, the distribution length of the side hole of the ring surface is 3-5 mm.
In a scheme, the needle body is provided with a movable positioning clamping block.
The utility model has the advantages that: the utility model increases the side hole for releasing the medicine, increases the diffusion surface of the medicine entering the human tissue, avoids the pain caused by the concentrated injection of the medicine, increases the anesthesia effect, shortens the time for absorbing the medicine, reduces the dosage of the anesthesia medicine, improves the operation efficiency of the patient and reduces the complications in the operation.
Drawings
FIG. 1 is a schematic configuration view of a puncture needle for local anesthesia in accordance with embodiment 1 of the present invention;
FIG. 2 is a schematic view showing the structure of a needle body of a puncture needle for local anesthesia in accordance with embodiment 1 of the present invention;
FIG. 3 is a schematic view showing the structure of a needle body of embodiment 2 of a puncture needle for local anesthesia according to the present invention;
FIG. 4 is a schematic configuration view of a puncture needle for local anesthesia in accordance with embodiment 3 of the present invention;
wherein: 1. the needle base, 2, the needle body, 3, the anchor ring side opening, 4, pointed end, 5, the pointed end side opening, 6, the scale, 7, the location fixture block.
Detailed Description
The present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which a person skilled in the art can, without any creative effort, fully implement the present invention.
Example 1: as shown in fig. 1-2, a pjncture needle that local anesthesia used, including needle file 1, needle body 2, injection orifice, pointed end 4, needle file 1 includes that an inside has the opening near-end in chamber, a terminal and a passageway that link up, needle body 2 includes near-end, terminal and inside medicine cavity, the terminal of needle file 1 is connected with needle body 2's near-end, pointed end 4 is connected with needle body 2's end, pointed end 4 is inside cavity front end confined conical tip, the injection orifice includes anchor side hole 3, sharp side hole 5, the terminal annular of needle body 2 sets up a plurality of anchor side holes 3, sharp side hole 5 evenly sets up on pointed end 4's side, passageway and medicine cavity UNICOM, injection orifice and medicine cavity UNICOM.
Further, the length of the needle body 2 is 15-20 cm.
Further to the present invention, the tip 4 has a length of 2 cm.
The utility model further comprises a scale starting from the front end of the tip 4 and extending the length of the needle body 2, wherein the front end of the tip 4 is a scale 0.
Further to the present invention, the tip-side hole 5 is circular or elliptical.
Furthermore, the side hole 3 of the ring surface is a cylindrical structure and is communicated from the outer wall of the medicine cavity to the outer wall of the needle body 2.
Further, the distribution length of the annular side hole 3 is 3-5 mm.
Example 2: as shown in fig. 1, 3, a pjncture needle that local anesthesia used, including needle file 1, needle body 2, injection orifice, pointed end 4, needle file 1 includes that an inside has the opening near-end in chamber, a terminal and a passageway that link up, needle body 2 includes near-end, terminal and inside medicine cavity, the terminal of needle file 1 is connected with needle body 2's near-end, pointed end 4 is connected with needle body 2's end, pointed end 4 is inside cavity front end confined conical tip, the injection orifice includes anchor side hole 3, pointed end side hole 5, the terminal annular of needle body 2 sets up a plurality of anchor side holes 3, anchor side hole 5 evenly sets up on pointed end 4's side, passageway and medicine cavity UNICOM, injection orifice and medicine cavity UNICOM.
Further, the length of the needle body 2 is 15-20 cm.
Further to the present invention, the tip 4 has a length of 2 cm.
The utility model further comprises a scale starting from the front end of the tip 4 and extending the length of the needle body 2, wherein the front end of the tip 4 is a scale 0.
Further to the present invention, the tip-side hole 5 is circular or elliptical.
Furthermore, the side hole 3 of the torus is in a conical structure, the larger opening end of the conical structure is positioned on the outer wall surface of the needle body 2, and the smaller opening end is positioned on the inner wall surface of the needle body 2, so that the flow speed is reduced, and the pain is reduced, as shown in fig. 3.
Further, the distribution length of the annular side hole 3 is 3-5 mm.
Example 3: as shown in fig. 4, the difference from the embodiment 1 or 2 is that a movable positioning fixture block 7 is arranged on the needle body 2, so as to conveniently fix and limit the puncture position of the puncture needle.
While the preferred embodiments of the utility model have been described, it is to be understood that the utility model is not limited to the precise embodiments described, and that equipment and structures not described in detail are understood to be practiced as commonly known in the art; any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention by those skilled in the art can be made without departing from the technical scope of the present invention, and still fall within the protection scope of the technical solution of the present invention.
Claims (4)
1. The utility model provides a pjncture needle that local anesthesia used, its characterized in that includes needle file, needle body, injection orifice, pointed end, the needle file includes that an inside has the opening near-end in chamber, a terminal and a passageway that link up, the needle body includes near-end, terminal and inside medicine cavity, the terminal of needle file is connected with the near-end of needle body, the end-to-end connection of pointed end and needle body, the pointed end is inside cavity front end confined conical tip, the injection orifice includes anchor ring side opening, pointed end side opening, the terminal annular of needle body sets up a plurality of anchor ring side openings, pointed end side opening evenly sets up on most advanced side, passageway and medicine cavity UNICOM, injection orifice and medicine cavity UNICOM, the length of needle body is 15-20cm, the length of laying of anchor ring side opening is 3-5mm, most advanced length is 2cm, the needle body is characterized by further comprising scales, wherein the scales are from the front end of the pointed end to the length of the whole needle body, the front end of the pointed end is a scale 0, and the needle body is provided with a movable positioning clamping block.
2. A puncture needle for local anesthesia as claimed in claim 1, wherein said tip side hole is circular or oval.
3. A puncture needle for local anesthesia as claimed in claim 1, wherein said annular side opening is of cylindrical configuration communicating from the outer wall of the drug cavity to the outer wall of the needle body.
4. The puncture needle for local anesthesia of claim 1, wherein the side hole of the annular surface is of a conical structure, the larger open end of the conical structure is located on the outer wall surface of the needle body, and the smaller open end is located on the inner wall surface of the needle body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120032986.6U CN216908060U (en) | 2021-01-07 | 2021-01-07 | Puncture needle for local anesthesia |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120032986.6U CN216908060U (en) | 2021-01-07 | 2021-01-07 | Puncture needle for local anesthesia |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216908060U true CN216908060U (en) | 2022-07-08 |
Family
ID=82223470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120032986.6U Active CN216908060U (en) | 2021-01-07 | 2021-01-07 | Puncture needle for local anesthesia |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216908060U (en) |
-
2021
- 2021-01-07 CN CN202120032986.6U patent/CN216908060U/en active Active
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