Novel anesthetic needle
By designing a novel anesthetic needle with a porous anesthesia device and adjustment mechanism, the problem of insufficient support in minimally invasive anesthesia devices has been solved, resulting in more uniform drug distribution and faster anesthetic effects, reduced tissue damage, and improved patient comfort.
Patent Information
- Application Number
- CN202422359405.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-26
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-09-26
AI Technical Summary
Existing minimally invasive anesthesia devices have relatively thin needles during local infiltration anesthesia, resulting in poor support, increased operational difficulty, and uneven drug distribution, which may increase tissue damage.
A novel anesthetic needle is designed, employing a multi-hole anesthetic device. The connecting tube is directly connected to the nipple of the syringe, with multiple needles and an adjustment mechanism to control drug dosage and distribution. This mechanism includes a limiting element and an adjustment mechanism to adjust the position of the limiting element on the push rod. The needles are arranged in a matrix to improve support and drug diffusion.
It improves the support effect of minimally invasive anesthesia devices, reduces the difficulty of operation, distributes drugs more evenly, reduces the number of punctures, and improves patient comfort and anesthesia speed.
Smart Images
Figure CN223529798U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of medical device technology for anesthesiology, and in particular relates to a novel anesthetic needle. Background Technology
[0002] Anesthesiology is a professional field of medicine. Anesthesia means using drugs or other methods to temporarily eliminate sensation in a patient, either as a whole or in a specific area, to achieve pain relief and provide conditions for surgical treatment or other medical examinations and treatments.
[0003] There are two types of anesthesia: inhalation anesthesia and injection anesthesia. Inhalation anesthesia is general anesthesia, while injection anesthesia can be either general or local anesthesia.
[0004] Local anesthesia refers to the use of local anesthetic drugs to temporarily remove sensation from a part of the body. Commonly used methods include spinal anesthesia, nerve block, regional block, local infiltration anesthesia, and surface anesthesia. Local infiltration anesthesia involves directly injecting local anesthetic drugs into the surgical site and distributing them evenly throughout the tissue layers of the entire surgical area to block the transmission of pain. It is a commonly used anesthesia method for minor surgeries in clinical practice.
[0005] In the existing technology, a minimally invasive anesthesia device is used for local anesthesia. However, the minimally invasive anesthesia device is directly connected to the needle of a syringe. When a syringe is used for local infiltration anesthesia, the needle tube is relatively thin, which provides weak support for the minimally invasive anesthesia device. Summary of the Invention
[0006] The technical problem to be solved by this utility model is to provide a novel anesthetic needle that provides good support for minimally invasive anesthesia devices.
[0007] The technical solution proposed by this utility model is as follows:
[0008] A novel anesthetic needle, comprising a minimally invasive anesthesia device, the minimally invasive anesthesia device including:
[0009] The matrix has a cavity inside;
[0010] The needle is a multiple needles, which are tubular and are mounted on the substrate, with the needles communicating with the cavity of the substrate.
[0011] The connecting tube and the needle are respectively located at both ends of the base. The connecting tube is a hollow structure with open ends. The connecting tube is connected to the cavity of the base and can be detachably connected to the nipple of the syringe.
[0012] Optionally, the connecting tube is inserted into the nipple.
[0013] Optionally, the connecting tube is threaded to the nipple.
[0014] Optionally, a piston is slidably connected inside the syringe, and a push rod is coaxially connected to the piston. A limiting element is sleeved on one end of the push rod that extends out of the syringe. The limiting element is used to limit the depth to which the piston is inserted into the syringe.
[0015] Optional, also includes:
[0016] The adjustment mechanism is used to adjust the position of the limit component on the push rod.
[0017] Optionally, the adjustment mechanism includes:
[0018] External thread, the external thread is set on the outer wall of the push rod;
[0019] Internal thread, the internal thread is set on the inner wall of the limiting part;
[0020] The external thread and the internal thread mate with each other.
[0021] Optionally, the outer wall of the limiting member is a regular hexagon.
[0022] Optionally, the adjustment mechanism includes:
[0023] A threaded hole is provided on the limiting member, and the threaded hole penetrates the inner and outer walls of the limiting member;
[0024] Fasteners are fasteners that are threaded into threaded holes.
[0025] Optionally, the fastener is a set screw.
[0026] Optionally, the outer wall of the push rod is provided with at least one indicator area, which is recessed into the push rod along the outer wall of the push rod and extends along the axis of the push rod. The indicator area is provided with a mark.
[0027] Compared with the prior art, the beneficial effects of this utility model are:
[0028] This invention connects the connecting tube of the minimally invasive anesthesia device directly to the nipple of the syringe. During local infiltration anesthesia, the syringe supports the minimally invasive anesthesia device, providing good support.
[0029] In addition, the minimally invasive anesthesia device is directly connected to the nipple of the syringe, and the distance between the operator and the site to be anesthetized is relatively small when the operator holds it, which reduces the difficulty of local infiltration anesthesia.
[0030] Finally, the use of multiple needles allows for simultaneous drug release at multiple points, which helps to create a more uniform drug distribution in the target area; the porous design helps the drug diffuse into the surrounding tissue more quickly, accelerating the onset time of the anesthetic; and multiple needles can reduce the number of punctures into the surrounding tissue, reducing tissue damage and improving patient comfort. Attached Figure Description
[0031] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.
[0032] Figure 1 This is a perspective view of the present utility model;
[0033] Figure 2 This utility model Figure 1 Cross-sectional view;
[0034] Figure 3 This is a schematic diagram of the internal thread structure of this utility model;
[0035] Figure 4 This is a schematic diagram of the syringe structure of this utility model;
[0036] Figure 5 This is a schematic diagram of the indicator area structure of this utility model;
[0037] Figure 6 This is a schematic diagram of the structure of the adjusting mechanism of this utility model, which uses threaded holes and fasteners;
[0038] Figure 7 This is a schematic diagram of the fastener of this utility model.
[0039] In the diagram: 1. Syringe; 11. Nipple; 12. Piston; 13. Push rod; 14. Handheld plate; 131. Indicator area; 132. Marker; 133. Push plate; 2. Minimally invasive anesthesia device; 21. Base; 22. Needle; 23. Connecting tube; 3. Limiting component; 4. Adjustment mechanism; 41. Internal thread; 42. External thread; 43. Fastener; 44. Threaded hole. Detailed Implementation
[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0041] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Example
[0042] Please refer to Figure 1 , Figure 2 The anesthetic needle of this utility model includes a syringe and a minimally invasive anesthesia device 2. The syringe has a syringe barrel 1, a piston 12 and a push rod 13.
[0043] The syringe 1 has a hollow structure, with one end sealed and the other end open. A nipple 11 is provided on the sealed end of the syringe 1. The nipple 11 has a hollow tubular structure and is connected to the cavity inside the syringe 1. A hand grip plate 14 is provided on the outer wall of the open end of the syringe 1. The hand grip plate 14 is convenient for the operator to grip.
[0044] Those skilled in the art will understand that the syringe 1 is made of any one of plastic, glass, or metal.
[0045] The piston 12 is slidably connected inside the syringe 1. The piston 12 delivers anesthetic from the syringe 1 to the minimally invasive anesthesia device 2 by moving up and down inside the syringe 1.
[0046] As will be understood by those skilled in the art, piston 12 is made of rubber.
[0047] The upper end of the push rod 13 is connected to the piston 12, and the lower end of the push rod 13 extends out of the syringe 1. The lower end of the push rod 13 is provided with a push plate 133. When in use, the operator's thumb presses against the push plate 133 and pushes the push rod 13 upward, so that the piston 12 moves upward inside the syringe 1 to deliver the anesthetic.
[0048] Those skilled in the art will understand that the push rod 13 is made of any of the following materials: plastic, glass, or metal.
[0049] The minimally invasive anesthesia device 2 includes a base 21, needles 22, and a connecting tube 23. The base 21 has a cavity, and multiple needles 22 are arranged at the upper end of the base 21. The connecting tube 23 is coaxially arranged at the lower end of the base 21. Both the connecting tube 23 and the needles 22 are connected to the cavity of the base 21.
[0050] The lower end of the connecting tube 23 is detachably connected to the nipple 11. The connection can be made by insertion, whereby the nipple 11 is inserted into the connecting tube 23; or by threaded connection.
[0051] The needles 22 are multiple and arranged in a matrix. Using multiple needles 22 offers several advantages over a single needle tip: First, multiple needles 22 allow for a larger injection area, faster anesthetic diffusion, and quicker anesthesia; second, the matrix arrangement helps the medication distribute more evenly in the tissue, providing a more consistent anesthetic effect; third, the matrix arrangement may reduce damage to surrounding tissues because it reduces the number of needle insertions and the depth of insertion. Fewer punctures and a more uniform anesthetic effect can improve the patient's overall comfort.
[0052] Those skilled in the art will understand that, since the needle 22 is disposed on the end face of the base 21, the insertion depth of the needle 22 can be limited by setting the length of the needle 22, making it easier for the operator to control the injection depth.
[0053] Those skilled in the art will understand that the materials of the substrate 21 and the connecting tube 23 are any one of plastic, glass, or metal; the material of the needle 22 is metal. Example
[0054] To control the dosage of the anesthetic injection, further improvements were made based on Example 1.
[0055] refer to Figure 1-7 A limiting element 3 is provided, which is set on the push rod 13. During use, after the limiting element 3 abuts against the handpiece 14, the push rod 13 cannot move further upward, thus limiting the upward movement distance of the piston 12. In specific use, a predetermined amount of anesthetic is injected into the syringe 1. Because the limiting element 3 restricts the movement distance of the piston 12, the dosage administered to the patient can be controlled.
[0056] As a preferred embodiment, an adjustment mechanism 4 is provided, which allows for adjustment of the vertical position of the limiting member 3 on the push rod 13. By adjusting the position of the limiting member 3, the output dosage can be flexibly adjusted during use.
[0057] It should be noted that, in order to facilitate the installation and removal of the limiting component 3, the piston 12 and the push rod 13 can be detachably connected.
[0058] As a further preferred option, an indicator area 131 is provided on the outer wall of the push rod 13. The indicator area 131 is arranged in the vertical direction, and a mark 132 is provided on the indicator area 131.
[0059] The label 132 is used to indicate the output volume. Specifically, the position of the limiting member 3 is adjusted so that the upper end face of the limiting member 3 is horizontally opposite to the label 132. When the limiting member 3 is pushed so that the limiting member 3 is in close contact with the hand plate 14, the maximum dose that can be output through the syringe 1 is the data corresponding to this label 132 (when the lower end face of the piston 12 is horizontally opposite to the lower end face of the hand plate 14, the volume inside the syringe 1 is at its maximum value).
[0060] In practical use, observe the horizontally aligned mark 132 on the lower end face of the handheld plate 14 to obtain data X; adjust the limiting member 3 so that the upper end face of the limiting member 3 is horizontally aligned with the corresponding mark, and the data corresponding to this mark is Y; push the limiting member 3 to move so that the limiting member 3 and the handheld plate 133 fit together, at which time the volume of the output anesthetic is YX.
[0061] One option for adjusting mechanism 4 is to refer to Figure 1 , Figure 2 , Figure 3 , Figure 5 An external thread 42 is provided on the outer wall of the push rod 13, and an internal thread 41 is provided on the inner wall of the limiting member 3. In use, the limiting member 3 is rotated, and the position of the limiting member 3 on the push rod 13 is adjusted by the cooperation of the internal thread 41 and the external thread 42, thereby controlling the dose of anesthetic drug administered to the patient.
[0062] As a further preferred option, the outer wall of the limiting member 3 is set to a regular hexagon (i.e., a nut), so that the limiting member 3 can be easily rotated with tools such as wrenches when in use; in addition, since the nut is a standard part, it is also easy to purchase.
[0063] Another option for adjusting mechanism 4 is to refer to Figure 6 , Figure 7 A threaded hole 44 is provided on the outer wall of the limiting member 3, and a fastener 43 is provided in the threaded hole 44. In use, slide the limiting member 3 to adjust the position of the limiting member 3 on the push rod 13. After adjustment, rotate the fastener 43 to press against the push rod 13, thereby fixing the limiting member 3 and the push rod 13 relative to each other.
[0064] As a further preferred option, fastener 43 is a set screw.
[0065] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A novel anesthetic needle, comprising a minimally invasive anesthesia device (2), characterized in that, Minimally invasive anesthesia devices (2) include: The matrix (21) has a cavity inside; The needle (22) is multiple and is tubular. The needle (22) is set on the substrate (21) and is connected to the cavity of the substrate (21). The connecting tube (23) and the needle (22) are respectively set at both ends of the base (21). The connecting tube (23) is a hollow structure with open ends. The connecting tube (23) is connected to the cavity of the base (21). The connecting tube (23) can be detachably connected to the nipple (11) of the syringe (1).
2. The anesthetic needle according to claim 1, characterized in that, The connecting tube (23) is inserted into the nipple (11).
3. The anesthetic needle according to claim 1, characterized in that, The connecting tube (23) is connected to the nipple (11) by a thread.
4. The anesthetic needle according to claim 1, characterized in that, A piston (12) is slidably connected inside the syringe (1), and a push rod (13) is coaxially connected to the piston (12). A limiting member (3) is sleeved on one end of the push rod (13) that extends out of the syringe (1). The limiting member (3) is used to limit the depth to which the piston (12) is inserted into the syringe (1).
5. The anesthetic needle according to claim 4, characterized in that, Also includes: Adjustment mechanism (4) is used to adjust the position of the limit member (3) on the push rod (13).
6. The anesthetic needle according to claim 5, characterized in that, The regulating mechanism (4) includes: External thread (42) is provided on the outer wall of push rod (13); Internal thread (41) is provided on the inner wall of the limiting member (3); The external thread (42) and the internal thread (41) are mated together.
7. The anesthetic needle according to claim 6, characterized in that, The outer wall of the limiting component (3) is a regular hexagon.
8. The anesthetic needle according to claim 5, characterized in that, The regulating mechanism (4) includes: A threaded hole (44) is provided on the limiting member (3), and the threaded hole (44) penetrates the inner and outer walls of the limiting member (3); Fastener (43) is threaded into threaded hole (44).
9. The anesthetic needle according to claim 8, characterized in that, The fastener (43) is a set screw.
10. The anesthetic needle according to any one of claims 4-9, characterized in that, The outer wall of the push rod (13) is provided with at least one indicator area (131), the indicator area (131) extends along the axis of the push rod (13), and a mark (132) is provided on the indicator area (131).