Low-damage and easy-to-puncture subarachnoid space anesthetic needle
By designing a finely crafted spinal anesthesia needle tip and an internal guidewire, the problems of puncture deviation and cerebrospinal fluid leakage in traditional spinal anesthesia needles have been solved, achieving low-damage, easy-to-puncture, and highly effective anesthesia.
Patent Information
- Application Number
- CN202422627382.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-30
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2034-10-30
AI Technical Summary
Traditional spinal anesthesia needles are prone to cerebrospinal fluid leakage and deviation from the target direction during puncture, resulting in a higher incidence of postoperative headaches. In addition, ultra-thin spinal anesthesia needles are easy to bend during use, leading to a low puncture success rate.
A low-damage, easily puncturable subarachnoid anesthesia needle was designed, using a main needle body of 0.5mm to 0.8mm and a beveled needle tip of 0.3mm to 0.5mm, combined with an internal guidewire to enhance the strength and toughness of the needle. The needle tip adopts a beveled opening design to control the direction of drug delivery.
It improved the smoothness of puncture, reduced the risk of cerebrospinal fluid leakage, decreased the incidence of postoperative anesthesia headache, and ensured the accuracy and success rate of puncture.
Smart Images
Figure CN223695964U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to anesthetic needle technical field especially relates to a low damage easy puncture subarachnoid cavity anesthetic needle. BACKGROUND
[0002] Subarachnoid block anesthesia is a kind of anesthesia method commonly used in clinic, and the method is to inject local anesthetic into subarachnoid space, act on spinal nerve root and make corresponding part produce anesthetic effect.
[0003] When the traditional spinal needle is anesthetized puncture, because needle is relatively thick, cerebrospinal fluid leakage is easy to appear, so postoperative headache often occurs, and currently, special thin spinal needle is also used for puncture, and the probability of headache is much smaller than that of commonly used spinal needle, but when special thin spinal needle is punctured, it is easy to bend and cause puncture deviation from target direction, and the success rate or efficiency of puncture is relatively low, and currently, it needs to be matched with guide cannula needle to ensure that puncture is successful and does not deviate from target position, which is relatively inconvenient. UTILITY MODEL CONTENT
[0004] The utility model aims at solving the problems in prior art and provides a low damage easy puncture subarachnoid cavity anesthetic needle.
[0005] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:
[0006] A low damage easy puncture subarachnoid cavity anesthetic needle, including spinal needle main part, the spinal needle main part includes main needle body and needle tip, the needle tip is connected at one end of main needle body, the needle diameter of main needle body is between 0.5mm to 0.8mm, the length of needle tip is between 4mm to 5.5mm, the needle diameter of needle tip is between 0.3mm to 0.5mm, and the needle tip adopts bevel opening design.
[0007] Preferably, the needle diameter of main needle body is 0.7mm, the length is 50mm, the length of needle tip is 5mm, and the needle diameter of needle tip is 0.3mm.
[0008] Preferably, the spinal needle main part further includes needle seat, one side of needle seat is provided with built-in guide wire, and built-in guide wire is located in main needle body and needle tip.
[0009] Preferably, the material of main needle body and needle tip is stainless steel, and the material of built-in guide wire is stainless steel.
[0010] Compared with prior art, the utility model has the beneficial effects that:
[0011] The utility model discloses on the basis of traditional waist anesthesia needle, improve its needle tip part, make needle tip part special thin, combined the advantage of traditional waist anesthesia needle and special thin waist anesthesia needle, can guarantee the fluency of puncture, can also reduce cerebrospinal fluid leakage, prevent the incidence of postoperative anesthesia headache. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 A low-damage and easy-to-puncture subarachnoid anesthesia needle is shown in the utility model.
[0013] In the figure: 1, main needle body; 2, needle tip; 3, needle seat; 4, built-in guide wire. DETAILED DESCRIPTION
[0014] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.
[0015] REFERENCE Figure 1 A low-damage and easy-to-puncture subarachnoid anesthesia needle, comprising a waist anesthesia needle body, the waist anesthesia needle body comprising a main needle body 1 and a needle tip 2, the needle tip 2 being connected to one end of the main needle body 1, the needle diameter of the main needle body 1 being between 0.5mm and 0.8mm, the length of the needle tip 2 being between 4mm and 5.5mm, the needle diameter of the needle tip 2 being between 0.3mm and 0.5mm, and the needle tip 2 being designed with a beveled opening.
[0016] The anesthesia needle improves the needle tip 2 part on the basis of the traditional waist anesthesia needle, makes the needle tip 2 part special thin, combines the advantages of the traditional waist anesthesia needle and the special thin waist anesthesia needle, can guarantee the fluency of puncture, will not appear the situation that bending causes puncture deviating from the target direction, can also reduce cerebrospinal fluid leakage, prevent the incidence of postoperative anesthesia headache, in addition, the special thin waist anesthesia needle generally adopts the design of pen tip type opening, after the needle tip 2 of the anesthesia needle is processed to be special thin, the design of the beveled opening of the traditional waist anesthesia needle is adopted, which is very helpful for the control of drug direction input (anesthesia plane).
[0017] Preferably, the needle diameter of the main needle body 1 is 0.7mm, the length is 50mm, the length of the needle tip 2 is 5mm, and the needle diameter of the needle tip 2 is 0.3mm.
[0018] In the embodiment, the waist anesthesia needle body further comprises a needle seat 3, one side of the needle seat 3 is provided with a built-in guide wire 4, and the built-in guide wire 4 is located in the main needle body 1 and the needle tip 2. The built-in guide wire 4 can strengthen the strength and toughness of the needle, ensure that the puncture needle is not easy to deform and bend when puncturing. It should be noted that the specific connection mode and use mode of the waist anesthesia needle, the needle seat 3 and the built-in guide wire 4 are all existing public technologies, and will not be described in detail here.
[0019] In the embodiment, the main needle body 1 and the needle tip 2 are made of stainless steel, and the built-in guide wire 4 is made of stainless steel. The main needle body 1 and the needle tip 2 are made of medical stainless steel material, so as to ensure the strength and corrosion resistance. The built-in guide wire 4 is mainly made of stainless steel, and combined with polymer material, the smoothness and biocompatibility can be improved.
[0020] In the embodiment, the connection between the main needle body 1 and the needle tip 2 adopts an arc-shaped surface transition, so as to prevent the puncture from having a jerky feeling.
[0021] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.
Claims
1. A low trauma, easy piercing spinal subarachnoid block needle comprising a spinal needle body, characterized in that: The spinal needle body comprises a main needle body and a needle tip, the needle tip is connected at one end of the main needle body, the needle diameter of the main needle body is between 0.5mm and 0.8mm, the length of the needle tip is between 4mm and 5.5mm, the needle diameter of the needle tip is between 0.3mm and 0.5mm, and the needle tip adopts a bevel opening design; The needle diameter of the main needle body is 0.7mm, the length is 50mm, the length of the needle tip is 5mm, and the needle diameter of the needle tip is 0.3mm; The spinal needle body further comprises a needle seat, one side of the needle seat is provided with an embedded guide wire, and the embedded guide wire is located in the main needle body and the needle tip.
2. The low trauma, easy piercing subarachnoid block needle of claim 1, wherein: The material of the main needle body and the needle tip is stainless steel, and the material of the embedded guide wire is stainless steel.
3. The low trauma, easy piercing subarachnoid block needle of claim 2, wherein: The connection between the main needle body and the needle tip adopts an arc surface transition.