Anesthesia pen capable of continuously injecting
By designing an anesthesia pen containing a drug storage part and a drug delivery part, using a sealing spacer to achieve continuous injection of the agent, the problem that existing syringes cannot achieve multiple consecutive injections is solved, and the continuity and dosage of anesthesia injection are achieved Precise control.
Patent Information
- Application Number
- CN202420977052.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-08
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-05-08
AI Technical Summary
Existing anesthetic syringes generally only have the function of a single injection and are not suitable for multiple injections in a row.
A continuous injection anesthesia pen is designed, including a drug storage part and a drug delivery part. The two are separated by a sealing septum. When the drug storage part is pressed down, the drug delivery part follows, and the incision of the sealing septum is opened. It automatically flows into the dosing part, and the incision of the sealing septum is closed when the dosing part rebounds, achieving multiple consecutive injections.
The continuous multiple anesthesia injections were achieved, which solved the problem that existing syringes could not achieve continuous multiple injections. Through designs such as limit nails and observation windows, precise dose control and visualization of the dose were achieved.
Smart Images
Figure CN222467739U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an anesthesia tool, in particular to an anesthesia pen capable of continuous injection. Background Art
[0002] Anesthetics are drugs that can relieve pain and control patient sensations. Therefore, before or during most surgeries, patients need to be injected with anesthetics, and some surgeries require patients to be injected with anesthetics multiple times in succession. However, current anesthetic syringes generally only have the function of single injection and are not suitable for continuous multiple injection operations.
[0003] Therefore, the technical problem to be solved by the present application is to provide an anesthetic pen suitable for continuous injection. Utility Model Content
[0004] The purpose of the utility model is to provide an anesthetic pen capable of continuous injection in view of the defects existing in the above-mentioned technology. The anesthetic pen is provided with a drug storage part and a dosing part, a sealing septum is arranged between the two, the incision of the sealing septum is opened by pressing down the drug storage part, and the dosing part and the drug storage part move together, so that the medicine flows to the dosing part, after the drug storage part is released, the incision of the sealing septum is closed, and the medicine cannot flow back, and the dosing part completes the dosing operation during the needle withdrawal and rebound process, so that continuous multiple injections can be achieved.
[0005] The purpose of the utility model is achieved by: comprising:
[0006] The medicine storage part is cylindrical and hollow inside, with a medicine outlet hole at one end and an air hole at the other end;
[0007] A drug administration part, wherein a drug storage channel is provided inside the drug administration part, one end of the drug storage channel is open, and the other end is connected to the needle;
[0008] A sealing gasket, wherein a notch is provided on the sealing gasket;
[0009] The medicine storage part and the dosing part are arranged inside the shell, the sealing gasket is fixedly connected to the shell, one side of the sealing gasket abuts against the medicine storage part, and the other side abuts against the dosing part; the medicine storage part can be pressed along the axial direction of the shell inside the shell, and the dosing part and the medicine storage part move with it, and a first spring is provided between the dosing part and the shell.
[0010] In the above structure, the shell includes a pen tip, a pen body and a pen tail. The pen tip and the pen body, and the pen tail and the pen body are connected by threads. The sealing gasket is clamped and fixed at the connection between the pen tip and the pen body.
[0011] In the above structure, the pen tip is provided with a first sealing part, and the pen body is provided with a second sealing part. The first sealing part is sealed between the pen tip and the medication part, and the second sealing part is sealed between the pen body and the medication storage part.
[0012] In the above structure, a step is provided in the inner hole of the pen body, and a first inner hole and a second inner hole are formed on both sides of the step, and the diameter of the first inner hole is larger than the diameter of the second inner hole;
[0013] The medicine storage part is provided with a first limiting platform, and the medicine storage part is sleeved with a second spring, one end of the second spring abuts against the first limiting platform, and the other end abuts against the end surface of the stepped platform.
[0014] In the above structure, the medicine storage part is also provided with a second limiting platform;
[0015] The pen body is provided with a plurality of limiting holes, and limiting pins are provided in the limiting holes;
[0016] Specifically, the second limiting platform is arranged between the end surface of the pen tail and the limiting pin.
[0017] In the above structure, the pen tail is provided with a through hole, the medicine storage part is inserted into the through hole, the end surface of the medicine storage part is connected to a pressing part, and the air hole of the medicine storage part is exposed at the upper part of the pen tail.
[0018] In the above structure, the pen body is provided with an observation window with a length along the axial direction, through which the amount of medicine in the medicine storage part can be known.
[0019] In the above structure, the sealing spacer is provided with a cross-shaped incision, and membrane flaps are provided on both sides of the incision.
[0020] In the above structure, the drug delivery part includes a first column segment and a second column segment, and the outer diameter of the first column segment is greater than the outer diameter of the second column segment;
[0021] Wherein, the first spring is sleeved on the second column segment, one end of the first spring abuts against the end surface of the first column segment, and the other end abuts against the outer shell; a support rod is provided at the open end of the drug storage channel.
[0022] The beneficial effects of the utility model are as follows: the medicine storage part and the administration part are separately arranged, and the two are separated by a sealing spacer. When the medicine storage part is pressed down, the administration part moves with it, and the medicine storage part applies force to the sealing spacer to open the incision of the sealing spacer, and the medicine automatically flows into the administration part. During the rebound of the administration part, the incision of the sealing spacer is closed, and the medicine cannot flow back, so the administration injection is completed, and multiple consecutive anesthesia injections can be achieved; a limiting pin is provided, and a single administration dose is controlled by limiting a single downward stroke of the medicine storage part, and the position of the limiting pin is adjustable, so different administration doses can be achieved for different surgeries; an observation window is provided, and the amount of medicine in the medicine storage part can be observed at any time; the medicine storage part is provided with an air hole, and the medicine storage part can be added through the air hole. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 This is a schematic diagram of the three-dimensional structure of the anesthesia pen of the utility model;
[0024] Figure 2 This is a schematic diagram of the cross-sectional structure of the anesthesia pen of the utility model;
[0025] Figure 3 This is a schematic diagram of the sealing gasket structure of the utility model;
[0026] Figure 4 This is a schematic diagram of the cross-sectional structure of the sealing spacer of the utility model;
[0027] Figure 5 It is a structural schematic diagram of the drug delivery part of the utility model. DETAILED DESCRIPTION
[0028] The present application provides an anesthetic pen capable of continuous injection, which has a drug storage part and a drug administration part, which are separated by a sealing septum. When the drug storage part is pressed down, the drug administration part moves accordingly, and the drug storage part applies force to the sealing septum to open the incision of the sealing septum, and the drug automatically flows into the drug administration part. During the rebound process of the drug administration part, the incision of the sealing septum is closed, and the drug cannot flow back, completing the drug administration injection, and realizing continuous multiple anesthetic injections, thereby solving the problem that the syringes currently used in anesthesia operations cannot realize continuous multiple injections.
[0029] The following is a further description of this implementation case in conjunction with the accompanying drawings:
[0030] Depend on Figure 1 — Figure 5 It can be seen that the present application includes a drug storage part 1, which is cylindrical and has a hollow structure inside. A drug outlet hole 110 is provided at one end, and an air hole 120 is provided at the other end. A drug administration part 2 is provided, and a drug storage channel 201 is provided inside the drug administration part 2. One end of the drug storage channel 201 is open, and the other end is connected to the needle 3. A sealing gasket 4 is provided, and a cutout 401 is provided on the sealing gasket 4. A shell is provided, and the drug storage part 1 and the drug administration part 2 are arranged inside the shell. The sealing gasket 4 is fixedly connected to the shell, and one side of the sealing gasket 4 abuts against the drug storage part 1, and the other side abuts against the drug administration part 2; the drug storage part 1 can be pressed along the axis direction of the shell inside the shell, and the drug administration part 2 moves with the drug storage part 1, and a first spring 6 is provided between the drug administration part 1 and the shell.
[0031] In this embodiment, the single dose can be controlled by controlling the moving space of the dosing part 2, that is, the distance between the end face of the dosing part 2 and the bottom of the shell. The single dose can be adjusted by replacing the dosing part 2 of different lengths. When using this product, the needle must be downward, and it cannot be used inverted or horizontally. The principle is: press down the medicine storage part 1, the medicine storage part 1 will open the incision 401 of the sealing gasket 4, and at the same time push the dosing part 2 to move. At this time, the medicine in the medicine storage part 1 drips into the medicine storage channel 201 of the dosing part 2 under the action of gravity. While the dosing part 2 moves, the needle 3 moves downward synchronously and penetrates the patient's body, and then stops pressing the medicine storage part 1 and releases it. Under the action of the first spring 6, the dosing part 2 rebounds and pushes the medicine storage part 1 back to its original position. At this time, the incision 401 of the sealing gasket 4 is also closed, and the medicine cannot flow back, so that the tissue is administered during the needle withdrawal process, and it can be used for multiple injections in a row.
[0032] In the above-mentioned embodiment, the storage capacity of the drug storage part 1 is preferably set to 10 ml, and the movement stroke of the drug administration part is preset to achieve a single dosage of about 0.3 ml as the best.
[0033] Based on the above embodiment, preferably, the shell includes a pen tip 510, a pen body 520 and a pen tail 530, and the pen tip 510 and the pen body 520, as well as the pen tail 530 and the pen body 520 are all connected by threads, and the sealing gasket 4 is clamped and fixed at the connection between the pen tip 510 and the pen body 520.
[0034] In this embodiment, a specific implementation of the shell is provided, which is arranged in three parts and connected in sequence for easy assembly and disassembly, and the sealing gasket 4 is clamped between the pen body 520 and the pen tip 510, while the dosing part 2 is arranged inside the pen tip 510, and the medicine storage part 1 is arranged inside the pen body 520. When not pressed, the sealing gasket 4 forms a sealing effect on the medicine outlet hole 110 of the medicine storage part 1. After pressing, the medicine storage part 1 opens the incision 401 of the sealing gasket 4 and drips the medicine into the medicine storage channel 201 of the dosing part.
[0035] Based on the above embodiment, preferably, the pen tip 510 is provided with a first sealing portion 511, and the pen body 520 is provided with a second sealing portion 521, the first sealing portion 511 is sealed between the pen tip 510 and the dosing portion 2, and the second sealing portion 521 is sealed between the pen body 520 and the medicine storage portion 1.
[0036] This embodiment further discloses a sealing solution, which seals the space between the pen tip 510 and the medication portion 2 and the space between the pen body 520 and the medication storage portion 1 to prevent the medication from flowing out from the gaps between the components.
[0037] Based on the above implementation, preferably, a step platform 522 is provided in the inner hole of the pen body 520, and a first inner hole 523 and a second inner hole 524 are formed on both sides of the step platform 522, and the diameter of the first inner hole 523 is larger than the diameter of the second inner hole 524;
[0038] The medicine storage part 1 is provided with a first limiting platform 101 , and the medicine storage part 1 is fitted with a second spring 7 , one end of the second spring 7 abuts against the first limiting platform 101 , and the other end abuts against the end surface of the stepped platform 522 .
[0039] In this embodiment, a technical solution is provided in which the medicine storage part 1 can be quickly returned to its original position after being pressed down. A spring is arranged between the medicine storage part 1 and the pen body 520. After the medicine storage part 1 is pressed down, it can be quickly returned to its original position under the action of the spring. At the same time, the rapid return of the medicine storage part 1 can also increase the closing speed of the cutout 401 of the sealing gasket 4, thereby ensuring its sealing effect.
[0040] On the basis of the above embodiment, preferably, the medicine storage part 1 is further provided with a second limiting platform 102, wherein the pen body 520 is provided with a plurality of limiting holes 525, and limiting pins 8 are provided in the limiting holes 525; specifically, the second limiting platform 102 is arranged between the end face of the pen tail 530 and the limiting pin 8.
[0041] The above-mentioned embodiment further provides a method for controlling a single dosage of a drug, by installing the limiting pin 8 in different limiting holes 525 and controlling the downward stroke of the drug storage portion 1, thereby achieving the problem of controlling the dosage of the drug. In this embodiment, limiting holes 525 are provided on both sides of the pen body 520, and the density of the limiting holes 525 can be increased, thereby improving the dosage control accuracy.
[0042] Based on the above embodiment, preferably, the pen tail 530 is provided with a through hole 531, the medicine storage part 1 is inserted into the through hole 531, the end surface of the medicine storage part 1 is connected to a pressing part 9, and the air hole 120 of the medicine storage part 1 is exposed at the upper part of the pen tail 530.
[0043] In the above embodiment, the medicine storage part 1 passes through the pen tail 530 , and a pressing part 9 is provided on the medicine storage part 1 to facilitate the pressing operation; the air hole 120 is provided to be exposed to facilitate the replenishment of medicine into the medicine storage part 1 from the air hole 120 .
[0044] Based on the above implementation, preferably, the pen body 520 is provided with an observation window 526 with a length along the axis direction, through which the amount of medicine in the medicine storage part 1 can be known. The observation window 526 in this embodiment can be made of transparent material or a hollow structure.
[0045] Based on the above implementation, preferably, the sealing gasket 4 is provided with a cross-shaped incision, and membrane flaps 402 are provided on both sides of the incision. In this embodiment, the incision 401 of the sealing gasket 4 is cross-shaped, and membrane flaps are provided on both sides of the incision 401 to enhance the strength of the incision, help the incision to close, and increase the incision cross-section to ensure the sealing effect after the incision 401 is closed.
[0046] Based on the above embodiment, preferably, the medication part 2 includes a first column segment 210 and a second column segment 220, and the outer diameter of the first column segment 210 is greater than the outer diameter of the second column segment 220;
[0047] The first spring 6 is sleeved on the second column section 220 , one end of the first spring 6 abuts against the end surface of the first column section 210 , and the other end abuts against the outer shell; a support rod 202 is provided at the open end of the drug storage channel 201 .
[0048] In the above embodiment, the drug administration part 2 is arranged in sections to facilitate connection and cooperation with adjacent components. A support rod 202 is arranged above the drug storage channel. When the drug storage part 1 is pressed down, the support rod 202 receives the transmitted pressure and drives the drug administration part 2 and the drug storage part 1 to move in the same direction.
[0049] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.
[0050] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
Claims
1. A continuous injection anesthesia pen, characterized in that: include: The medicine storage part is cylindrical and hollow inside, with a medicine outlet hole at one end and an air hole at the other end; A drug administration part, wherein a drug storage channel is provided inside the drug administration part, one end of the drug storage channel is open, and the other end is connected to the needle; A sealing gasket, wherein a notch is provided on the sealing gasket; The medicine storage part and the dosing part are arranged inside the shell, the sealing gasket is fixedly connected to the shell, one side of the sealing gasket abuts against the medicine storage part, and the other side abuts against the dosing part; the medicine storage part can be pressed along the axial direction of the shell inside the shell, and the dosing part and the medicine storage part move with it, and a first spring is provided between the dosing part and the shell.
2. A continuously injectable anesthesia pen according to claim 1, characterized in that: The shell comprises a pen head, a pen body and a pen tail. The pen head and the pen body, and the pen tail and the pen body are all connected by threads. The sealing spacer is clamped and fixed at the connection between the pen head and the pen body.
3. A continuously injectable anesthesia pen according to claim 2, characterized in that: The pen tip is provided with a first sealing part, and the pen body is provided with a second sealing part. The first sealing part is sealed between the pen tip and the medication part, and the second sealing part is sealed between the pen body and the medication storage part.
4. The continuous injectable anesthesia pen according to claim 3, characterized in that: A step platform is provided in the inner hole of the pen body, and a first inner hole and a second inner hole are formed on both sides of the step platform, and the diameter of the first inner hole is larger than the diameter of the second inner hole; The medicine storage part is provided with a first limiting platform, and the medicine storage part is sleeved with a second spring, one end of the second spring abuts against the first limiting platform, and the other end abuts against the end surface of the stepped platform.
5. The continuously injectable anesthesia pen according to claim 4, characterized in that: The medicine storage section is also provided with a second limiting platform; The pen body is provided with a plurality of limiting holes, and limiting pins are provided in the limiting holes; The second limiting platform is arranged between the end surface of the pen tail and the limiting pin.
6. The anesthesia pen capable of continuous injection according to claim 5, characterized in that: The pen tail is provided with a through hole, the medicine storage part is inserted into the through hole, the end surface of the medicine storage part is connected to a pressing part, and the air hole of the medicine storage part is exposed at the upper part of the pen tail.
7. A continuously injectable anesthesia pen according to any one of claims 2 to 5, characterized in that: The pen body is provided with an observation window with a length along the axial direction, through which the amount of medicine in the medicine storage part can be known.
8. A continuously injectable anesthesia pen according to claim 1 or 2, characterized in that: The sealing spacer is provided with a cross-shaped incision, and membrane flaps are provided on both sides of the incision.
9. The continuously injectable anesthesia pen according to claim 1, characterized in that: The drug delivery part comprises a first column segment and a second column segment, wherein the outer diameter of the first column segment is greater than the outer diameter of the second column segment; The first spring is sleeved on the second column segment, one end of the first spring abuts against the end surface of the first column segment, and the other end abuts against the housing; A support rod is arranged at an open end of the medicine storage channel.