Multifunctional composite needling instrument capable of being used as needle knife, epidural puncture needle intervertebral foramen injection needle and puncture guide needle
By designing a multifunctional composite needle, combining the inner needle core, outer needle sleeve, puncture end and medicine fluid hole, the problem that existing injection needles cannot achieve multifunctionality is solved, and the safety and sharpness of perineal puncture around the nerves is achieved. It also improves the injection effect through the liquid pore, reducing the use of ruptured needles for epidural anesthesia and reducing costs.
Patent Information
- Application Number
- CN202420257437.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-02
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-02-02
AI Technical Summary
Since the existing injection needles are only equipped with a single needle core, they cannot achieve multi-functional use, resulting in the need to prepare additional tools when puncture and other operations, which increases the packaging and disinfection costs, and the preparation of multiple tools increases the chance of contamination.
A multifunctional composite needle tool is designed, including an inner needle core, an outer needle sleeve, a puncture end, a liquid hole and a removable needle plug. Through the combination of these components, a needle knife, an epidural needle and a puncture guide are realized. The function of the needle provides blunt tip puncture safety and local anesthesia function, and achieves all-round dispersion of the liquid through the liquid hole.
It realizes safety and sharpness during peri-nerve puncture, reduces the use of ruptured needles for epidural anesthesia, saves costs, and improves the injection effect through the design of the liquid pore.
Smart Images
Figure CN222195036U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical instruments, in particular to a multifunctional composite needle which can be used as a needle knife, an epidural puncture needle, an intervertebral foramen injection needle and a puncture guide needle. Background Art
[0002] Injection needles are a type of medical device, mainly used to inject liquid medicine or extract body fluids. According to different routes of use, injection needles can be divided into different types such as subcutaneous injection needles and intravenous injection needles. They are all disposable to ensure that each use is sterile and prevent cross infection.
[0003] The existing injection needle is only equipped with a single needle core and can only be used for injecting medicine or extracting body fluids. It cannot realize other functions. For example, when puncture and other operations are required, other tools need to be prepared additionally. The preparation of multiple tools not only makes the package opening operation troublesome and increases the chance of contamination, but multiple packages also increase the packaging and disinfection costs. Therefore, it needs to be improved. Utility Model Content
[0004] The purpose of the utility model is to make up for the deficiencies of the prior art and to provide a multifunctional composite needle which can be used as a needle knife, an epidural puncture needle, an intervertebral foramen injection needle and a puncture guide needle.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a multifunctional composite needle that can be used as a needle knife, an epidural puncture needle, an intervertebral foraminal injection needle and a puncture guide needle, including a composite needle, the composite needle including an inner needle core, an outer needle sleeve, a puncture end, a first liquid medicine hole, a second liquid medicine hole and a needle plug, the needle plug is composed of a detachable tail outer cap, a sealing sleeve ejector rod and a needle tail sealing inner sleeve;
[0006] An inner needle core is arranged on the inner wall of the needle plug, an outer needle sleeve is arranged on the surface of the inner needle core, the inner needle core and the outer needle sleeve are of equal length, a puncture end is arranged at one end of the outer needle sleeve, and scale lines are arranged every one centimeter on the arc surface of the outer needle sleeve and the arc surface of the inner needle core.
[0007] As mentioned above, a slot is provided on the bottom surface of the pin plug, and one end of the inner needle core is inserted into the slot of the pin plug and has an interference fit with the inner wall of the slot.
[0008] As mentioned above, the inner wall of the outer needle sleeve is hollow, and openings are provided at both ends. The outer needle sleeve is sleeved on the arc surface of the inner needle core and has an interference fit therewith.
[0009] As mentioned above, one end of the outer needle sleeve is integrally formed with a puncture end, and the puncture end is a blunt tip.
[0010] As mentioned above, one end of the arc-shaped surface of the inner needle core is penetrated by a plurality of liquid medicine holes.
[0011] As mentioned above, one end of the arcuate surface of the outer needle sleeve is penetrated by a plurality of liquid medicine holes 2.
[0012] Compared with the prior art, the multifunctional composite needle which can be used as a needle knife, an epidural puncture needle, a transvertebral foraminal injection needle and a puncture guide needle has the following beneficial effects:
[0013] The present invention provides a needle plug, an inner needle core, an outer needle sleeve and a puncture end, so that when it is necessary to puncture the periphery of the nerve, the outer needle sleeve can be sleeved on the inner needle core, and puncture is performed through the puncture end of the outer needle sleeve. Since the puncture end is a blunt tip, it is safer to puncture the periphery of the nerve. When puncturing other safer parts, such as epidural puncture breaking the skin, the needle head part of the inner needle core can be passed through the outer needle sleeve, so that it is sharper when puncturing. After breaking the skin, the needle head of the inner needle core can be removed, and the epidural anesthesia puncture breaking skin needle is not needed, thus saving the epidural anesthesia breaking skin needle. When local anesthesia is needed, such as local anesthesia of transforaminal endoscopic lumbar disc, the outer needle sleeve can be disassembled, the inner needle core is connected to the needle plug, and then the needle plug is connected to the syringe, so that the inner needle core can be used for local anesthesia. When used as a puncture guide needle, other components are disassembled and only the outer needle sleeve and the inner needle core are left, so that multiple functions can be achieved only by the cooperation of the inner needle core and the outer needle sleeve.
[0014] Second, the utility model provides the medicine liquid hole 1 and the medicine liquid hole 2, so that during puncture, the medicine liquid can cooperate with each other through the medicine liquid hole 1 and the medicine liquid hole 2, so that the injected medicine can be diffused in all directions, making the medicine application effect better.
[0015] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and will be apparent to those skilled in the art based on the following examination and study, or may be taught from the practice of the present invention to some extent. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0017] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model when not assembled;
[0018] Figure 3 It is a partial enlarged structural schematic diagram of the outer needle sleeve of the utility model;
[0019] Figure 4 It is a schematic diagram of a partially enlarged structure of the inner needle core of the utility model.
[0020] In the figure: 1. compound needle; 2. inner needle and needle core; 3. outer needle sheath; 4. puncture end; 5. medicine hole 1; 6. medicine hole 2; 7. needle plug. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0022] like Figure 1-4 As shown, the utility model provides a technical solution: a multifunctional composite needle that can be used as a needle knife, an epidural puncture needle, an intervertebral foraminal injection needle and a puncture guide needle, including a composite needle 1, the composite needle 1 includes an inner needle, a needle core 2, an outer needle sleeve 3, a puncture end 4, a liquid medicine hole 1 5, a liquid medicine hole 2 6 and a needle plug 7, and the needle plug 7 is composed of a detachable tail outer cap, a sealing sleeve ejector rod and a needle tail sealing inner sleeve;
[0023] An inner needle and a needle core 2 are arranged on the inner wall of the needle plug 7, an outer needle sleeve 3 is arranged on the surface of the inner needle core 2, the inner needle core 2 and the outer needle sleeve 3 are of equal length, a puncture end 4 is arranged at one end of the outer needle sleeve 3, and scale lines are arranged every one centimeter on the arc surface of the outer needle sleeve 3 and the arc surface of the inner needle core 2.
[0024] According to the overall structure of the device, when it is necessary to puncture around the nerve, the outer needle sheath 3 is put on the inner needle core 2, and the puncture is performed through the puncture end 4 of the outer needle sheath 3. Since the puncture end 4 is a blunt tip, it is safer to puncture around the nerve. When puncturing other safer parts, the needle part of the inner needle core 2 can be passed through the outer needle sheath 3, making it sharper during puncture. When epidural anesthesia is required, the inner needle and the needle core sheath can be removed when the puncture is successful. The epidural catheter is implanted into the epidural space through the outer needle sleeve. When local anesthesia is required, such as local anesthesia during percutaneous endoscopic lumbar discectomy, the outer needle sleeve 3 is removed, the inner needle core 2 is connected to the needle plug 7, and the needle plug 7 is connected to the syringe, so that the inner needle core 2 can be used for local anesthesia. When used as a puncture guide needle, other components are removed and only the outer needle sleeve 3 and the inner needle core 2 are left. During puncture, the injected drug solution can be diffused in all directions through the cooperation of the drug hole 1 5 and the drug hole 2 6, so that the drug application effect is better.
[0025] like Figure 1-2 As shown, a slot is provided on the bottom surface of the pin plug 7, and one end of the inner needle core 2 is inserted into the slot of the pin plug 7 and has an interference fit with the inner wall of the slot.
[0026] By providing the needle plug 7 and the inner needle core 2, the needle plug 7 can be connected to a syringe to perform operations such as local anesthesia.
[0027] like Figure 1-3As shown, the inner wall of the outer needle sleeve 3 is hollow, and openings are provided at both ends. The outer needle sleeve 3 is sleeved on the arc surface of the inner needle core 2 and has an interference fit therewith. A puncture end 4 is integrally formed at one end of the outer needle sleeve 3, and the puncture end 4 is a blunt tip.
[0028] By providing the outer needle sheath 3 and the puncture end 4, when it is necessary to puncture the area around the nerve, the outer needle sheath 3 is sheathed on the inner needle core 2, and the puncture is performed through the puncture end 4 of the outer needle sheath 3. Since the puncture end 4 is a blunt tip, it is safer to puncture the area around the nerve. When puncturing other safer parts, the needle head part of the inner needle core 2 can be passed through the outer needle sheath 3, making it sharper when puncturing.
[0029] like Figure 4 As shown, a plurality of liquid medicine holes 1 5 are formed through one end of the arc surface of the inner needle core 2, and a plurality of liquid medicine holes 2 6 are formed through one end of the arc surface of the outer needle sleeve 3.
[0030] By providing the medicine liquid hole 1 5 and the medicine liquid hole 2 6, during puncture, the medicine liquid hole 1 5 and the medicine liquid hole 2 6 cooperate with each other, so that the injected medicine liquid can be diffused in all directions, so that the medicine application effect is better.
[0031] Working principle: When it is necessary to puncture around the nerve, the outer needle sheath 3 is put on the inner needle core 2, and the puncture is performed through the puncture end 4 of the outer needle sheath 3. Since the puncture end 4 is a blunt tip, it is safer to puncture around the nerve. When puncturing other safer parts, the needle head of the inner needle core 2 can be passed through the outer needle sheath 3. For example, when the epidural puncture breaks the skin, the needle head of the inner needle core can be passed through the outer needle sheath, making it sharper during puncture. After breaking the skin, the needle head of the inner needle core can be removed, and it is not necessary to The epidural anesthesia puncture skin-breaking needle saves the epidural anesthesia skin-breaking needle and makes it sharper during puncture. When local anesthesia is needed, such as local anesthesia during percutaneous endoscopic lumbar discectomy, the outer needle sleeve 3 is disassembled, the inner needle core 2 is connected to the needle plug 7, and then the needle plug 7 is connected to the syringe, so that the inner needle core 2 can be used for local anesthesia. When used as a puncture guide needle, other components are disassembled and only the outer needle sleeve 3 and the inner needle core 2 are left. During puncture, the liquid medicine hole 1 5 and the liquid medicine hole 2 6 cooperate with each other, so that the injected liquid medicine can be diffused in all directions.
[0032] It should be noted that, in this article, the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model; the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "fixed", "installed", "connected", and "connected" should be understood in a broad sense. For example, "installed" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a mechanical connection or an electrical connection; "connected" can be a direct connection, an indirect connection through an intermediate medium, or a connection between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.
[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A multifunctional composite needle that can be used as a needle knife, an epidural puncture needle, a transvertebral foraminal injection needle and a puncture guide needle, comprising a composite needle (1), Features: The composite needle (1) comprises an inner needle, a needle core (2), an outer needle sleeve (3), a puncture end (4), a first drug liquid hole (5), a second drug liquid hole (6) and a needle plug (7), wherein the needle plug (7) is composed of a detachable tail outer cap, a sealing sleeve ejector rod and a needle tail sealing inner sleeve; The inner wall of the needle plug (7) is provided with an inner needle core (2), the surface of the inner needle core (2) is provided with an outer needle sleeve (3), the inner needle core (2) and the outer needle sleeve (3) are of equal length, one end of the outer needle sleeve (3) is provided with a puncture end (4), and the arc surface of the outer needle sleeve (3) and the arc surface of the inner needle core (2) are both provided with scale lines every one centimeter.
2. The multifunctional composite needle according to claim 1, which can be used as a needle knife, an epidural puncture needle, a transvertebral foraminal injection needle and a puncture guide needle, Features: The bottom surface of the needle bolt (7) is provided with a slot, and one end of the inner needle core (2) is inserted into the slot of the needle bolt (7) and has an interference fit with the inner wall of the slot.
3. The multifunctional composite needle according to claim 1, which can be used as a needle knife, an epidural puncture needle, a transvertebral foraminal injection needle and a puncture guide needle, Features: The inner wall of the outer needle sleeve (3) is hollow, and openings are provided at both ends. The outer needle sleeve (3) is sleeved on the arc surface of the inner needle core (2) and has an interference fit therewith.
4. The multifunctional composite needle according to claim 1, which can be used as a needle knife, an epidural puncture needle, a transvertebral foraminal injection needle and a puncture guide needle, Features: One end of the outer needle sleeve (3) is integrally formed with a puncture end (4), and the puncture end (4) is a blunt tip.
5. The multifunctional composite needle according to claim 1, which can be used as a needle knife, an epidural puncture needle, a transvertebral foraminal injection needle and a puncture guide needle, Features: A plurality of liquid medicine holes (5) are formed through one end of the arc-shaped surface of the inner needle core (2).
6. The multifunctional composite needle according to claim 1, which can be used as a needle knife, an epidural puncture needle, a transvertebral foraminal injection needle and a puncture guide needle, Features: A plurality of liquid medicine holes (6) are provided through one end of the arc-shaped surface of the outer needle sleeve (3).