Anesthetic syringe containing anesthetic
Technical Field
The utility model relates to the field of medical supplies, concretely relates to anesthesia syringe who contains anesthetic.
Background
The anesthetic is generally used in operations, in particular to local anesthesia in small and medium-sized operations.
The use of drugs that block nerve conduction, limiting the effects of anesthesia to a local area of the body is known as local anesthesia (local anesthesia). When the sensory nerve is blocked, local pain sensation and inhibition or disappearance of the sensation are generated; when the motor nerve is simultaneously blocked, a decrease in muscle movement or complete relaxation occurs. This block is temporary and fully reversible.
Local anesthesia is simple and easy to implement, has high safety, can keep a patient clear, has small interference on physiological functions and has few complications. Is suitable for small and medium-sized operations with a limitation of superficial treatment. However, when the medicine is used for operations with large range and deep position, the pain relieving is not perfect enough, the muscle relaxation is not good enough, and when the medicine is used for patients which are not easy to cooperate, especially children, basic anesthesia or auxiliary anesthesia must be added, so the application range of the medicine is limited to a certain extent. Commonly used local anesthetics include esters such as procaine and tetracaine, and amides such as lidocaine.
However, during the operation, the operation time may be prolonged, but the anesthetic agent is not effective, and the local anesthesia needs to be performed again. But re-injection of the anesthetic agent can increase patient discomfort and pain.
Disclosure of Invention
The utility model discloses the purpose is: provided is an anesthetic syringe containing an anesthetic capable of slowly releasing the anesthetic.
The technical scheme of the utility model is that: the utility model provides an anesthetic syringe that contains anesthetic, its includes interior needle, cover establish the outer needle outside the interior needle, still including setting up the anesthetic in outer needle, the needle point end of outer needle is provided with the cavity, anesthetic sets up in the cavity.
According to the preferable technical scheme, a sealing layer is arranged at the outer end of the anesthetic, and the inner end of the anesthetic abuts against the needle point of the inner needle.
In the technical scheme, the sealing layer is made of a human body absorbable material.
In a preferred technical scheme, the needle head of the inner needle is a plane.
The preferred technical scheme is that the anesthetic injection device further comprises a pushing-out assembly for pushing the inner needle out of the needle tip of the outer needle, and the pushing-out assembly is arranged at one end, far away from the needle tip, of the anesthetic injection device.
According to a further technical scheme, the pushing-out assembly comprises a first pushing piece fixedly arranged on the inner needle and a second pushing piece fixedly arranged on the outer needle, and the first pushing piece can move along the length direction of the outer needle relative to the second pushing piece.
In the above technical scheme, the first pushing member is in threaded connection with the second pushing member. The first pushing member and the second pushing member can also be in sliding connection.
According to the technical scheme, the outer needle is further fixedly provided with a handle portion and a clamping block clamped between the handle portion and the pushing assembly, and the clamping block blocks the first pushing member to move towards the needle point.
According to a further technical scheme, the handle portion extends towards two sides of the outer needle to form a wing shape.
According to the technical scheme, the clamping block is C-shaped, the clamping block is detachably clamped on the periphery of the outer needle, and two ends of the clamping block are respectively abutted to the handle portion and the first pushing member.
According to the technical scheme, the scales are arranged on the outer needle area where the fixture block is located, so that when the first pushing component is pushed, the injection amount of anesthetic can be effectively known.
In a further technical scheme, the anesthetic is a powdered medicament or an emulsion medicament.
The utility model discloses a theory of operation:
the cavity of the outer needle of the injector is preset with anesthetic which is emulsion, and the needle point of the outer needle is provided with a sealing layer, so that the integrity and the effectiveness of the anesthetic are ensured in the storage process of the injector.
In a small-sized operation, when local anesthesia needs to be injected through muscles, an outer needle of the injector is inserted into a part needing the local anesthesia, the clamping block is opened, the first pushing component is screwed, and therefore anesthetic in a cavity of the outer needle can be injected into a designated part.
The anesthetic in the cavity of the outer needle of the syringe can be prepared into different specifications or different anesthetics during production.
The utility model has the advantages that:
1. the utility model has simple structure and convenient operation, can effectively increase the anesthesia time without increasing the pain of the patient;
2. the utility model discloses just dispose anaesthetic when production, including kind and injection volume, medical personnel need not the configuration on the spot when using, directly use can.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
The invention will be further described with reference to the following drawings and examples:
fig. 1 is a schematic structural diagram of the present invention.
Wherein: 1. an inner needle; 2. an outer needle; 3. an anesthetic agent; 4. a sealing layer; 5. a first pushing member; 6. A second pusher; 7. a handle portion; 8. and (7) clamping blocks.
Detailed Description
The above-described scheme is further illustrated below with reference to specific examples. It should be understood that these examples are for illustrative purposes and are not intended to limit the scope of the present invention. The conditions used in the examples may be further adjusted according to the conditions of the particular manufacturer, and the conditions not specified are generally the conditions in routine experiments.
Example (b): referring to FIG. 1: the utility model provides an anesthetic syringe that contains anesthetic 3, its includes interior needle 1, cover and establish outer needle 2 outside interior needle 1, still includes anesthetic 3 that sets up in outer needle 2, and the needle point of outer needle 2 is provided with the cavity, and anesthetic 3 sets up in the cavity.
The outer end of the anesthetic 3 is provided with a sealing layer 4, and the inner end of the anesthetic 3 is abutted against the needle point of the inner needle 1.
The sealing layer 4 is made of human body absorbable material, such as fibrin glue, oxidized cellulose, microfibril collagen, chitosan, calcium alginate fiber, etc.
The needle head of the inner needle 1 is a plane.
The device also comprises a pushing-out component which pushes the inner needle 1 out of the needle tip of the outer needle 2, and the pushing-out component is arranged at one end of the anesthesia syringe far away from the needle tip.
The pushing-out assembly comprises a first pushing part 5 fixedly arranged on the inner needle 1 and a second pushing part 6 fixedly arranged on the outer needle 2, and the first pushing part 5 can move relative to the second pushing part 6 along the length direction of the outer needle 2.
The first pusher 5 is screwed to the second pusher 6. The outer needle 2 is further fixedly provided with a handle part 7 and a clamping block 8 clamped between the handle part 7 and the pushing assembly, and the clamping block 8 blocks the first pushing member 5 from moving towards the needle point direction.
The grip portion 7 includes wings extending to both sides of the outer needle 2.
The fixture block 8 is C-shaped, can be detachably clamped at the periphery of the outer needle 2, and two ends of the fixture block 8 are respectively abutted against the handle part 7 and the first pushing piece 5.
The area of the outer needle 2 where the fixture block 8 is located is provided with scales, so that when the first pushing member 5 is pushed, the number of the anesthetic 3 injected can be effectively known.
The anesthetic agent 3 is emulsion agent, such as emulsified procaine, tetracaine and lidocaine.
The application method of the embodiment comprises the following steps:
in small-size operation or outpatient service operation, when needing muscle or subcutaneous local anesthesia, select the syringe of suitable 3 doses of anesthetic, insert the position that needs local anesthesia with outer needle 2 of syringe, open fixture block 8, hold on one hand handle portion 7, twist with one hand and move first pusher 5, can realize injecting the anesthetic 3 in outer needle 2 cavity to appointed position.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.