Injection medicine dissolving needle and injection medicine dissolving device

Abstract

The injection medicine dissolving needle head and the injection medicine dissolving device are used in cooperation with a needle cylinder, the injection medicine dissolving needle head comprises a base part and a piercing part which are connected, and the piercing part has the trend of gradually reducing in the direction from the position close to the base part to the position away from the base part. A liquid inlet hole and an air inlet groove are formed in the two opposite sides of the piercing part respectively, the liquid inlet hole extends to the base part from the upper end of the piercing part and penetrates through the base part, and the air inlet groove extends to the upper end of the base part from the upper end of the piercing part. According to the utility model, the needle head which is made of the same plastic material as the needle cylinder is designed, so that recycling and unified treatment can be conveniently carried out, and medical personnel can be prevented from being stabbed; through the design of a liquid inlet hole, blockage of rubber scraps or introduction of liquid medicine can be avoided, liquid medicine residues can be avoided, and waste and environmental pollution are avoided; through the design of the air inlet groove and the limiting step, air automatically enters the bottle without resistance when the bottle is inserted to extract liquid medicine, and liquid leakage is avoided when the bottle is inserted or the liquid medicine is injected.

Description

Technical Field

[0001] The utility model relates to the technical field of infusion equipment, in particular to an injection drug dissolving needle and a corresponding injection drug dissolving device. Background Art

[0002] The current injection dissolving device is mainly composed of a syringe structure and a needle structure, and the medicine is extracted and mixed to prepare the infusion liquid.

[0003] For example, the applicant's prior application, patent number CN106726564A discloses a drug-dissolving needle, whose air filter membrane is reliably and securely installed in the drug-dissolving needle, and is easy to assemble with a high pass rate. A drug-dissolving needle includes an upper sleeve, a receiving cavity is provided on the upper sleeve, a needle seat assembly is inserted into the receiving cavity and fixed to the upper sleeve, a needle tube of the needle seat assembly is exposed from the upper sleeve, a gap is formed between the needle seat assembly and the inner wall of the receiving cavity to form an airway, the airway is connected to the air outlet hole provided on the upper sleeve, the needle seat assembly is formed with a liquid medicine channel, the upper sleeve has a diameter reducing portion perpendicular to the axis of the liquid medicine channel, a first hole is provided on the diameter reducing portion, an air filter membrane is fixed on the diameter reducing portion, the air filter membrane covers the first hole, and air can enter the airway through the first hole and the air filter membrane.

[0004] In the above patent, the needle tube is a conventional stainless steel needle structure with an open top. This type of needle is easy to cut the rubber stopper of the medicine bottle after being inserted into it, causing needle blockage. In addition, this type of needle is prone to residue when absorbing the medicine solution, which is a disadvantage. Utility Model Content

[0005] The utility model aims to avoid the deficiencies of the prior art and provides a drug dissolving injection needle which is convenient, safe, quick and can prevent residue.

[0006] The utility model solves the technical problem by adopting the following technical scheme: an injection needle for dissolving drugs, used in conjunction with a syringe, the injection needle comprising a base and a piercing portion connected to each other, the piercing portion having a tendency to gradually shrink from close to the base toward away from the base, a liquid inlet hole and an air inlet groove are respectively arranged on opposite sides of the piercing portion, the liquid inlet hole extends from the upper end of the piercing portion to the base and penetrates the base, the air inlet groove extends from the upper end of the piercing portion to the upper end of the base.

[0007] In several embodiments, the width of the air inlet groove at the upper end of the piercing portion is greater than the width of the air inlet groove at the lower end of the piercing portion.

[0008] In several embodiments, the outer diameter of the base is larger than the outer diameter of the piercing portion, and the base forms a limiting step at the connection position with the piercing portion.

[0009] In several embodiments, a connecting seat is disposed below the base, and the interior of the connecting seat is connected to the base and the liquid inlet hole.

[0010] In several embodiments, the base includes a body and a plurality of ribs protruding from the outer side of the body.

[0011] In several embodiments, a base is disposed below the base, the outer diameter of the base is greater than the outer diameter of the base, and the ribs extend to the upper end surface of the base.

[0012] In several embodiments, a syringe is further included, and the injection needle and the syringe are made of the same material, and the injection needle and the syringe are detachably connected.

[0013] In several embodiments, a syringe is further included, and the soluble drug injection needle and the syringe are made of the same material, and the soluble drug injection needle and the syringe are integrally formed.

[0014] The utility model has the following beneficial effects:

[0015] 1. The utility model adopts the same plastic needle design as the syringe, which can be easily recycled and processed, and can avoid stabbing medical staff; the design of the liquid inlet can avoid clogging of rubber debris or bringing in liquid medicine, and can avoid liquid medicine residue, waste and environmental pollution.

[0016] 2. The utility model uses the design of the air inlet groove and the limit step, so that when the medicine bottle is inserted to extract the medicine liquid, the air automatically enters the bottle without resistance, and leakage is avoided when the medicine bottle is inserted or the medicine liquid belt is filled. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are for illustrative purposes only of selected embodiments and do not represent all possible implementations, and should not be considered to limit the scope of the present invention.

[0018] Figure 1 The forward structure of the injection needle in Example 1 is schematically shown;

[0019] Figure 2 The planar structure of the drug dissolving injection needle in Example 1 is schematically shown;

[0020] Figure 3 The back-facing structure of the injection needle in Example 1 is schematically shown;

[0021] Figure 4 Schematically shows Figure 3 The cross-sectional structure of

[0022] Figure 5 The overall structure of the injection dissolution device in Example 2 is schematically shown;

[0023] Figure 6 Schematically shows Figure 5 The local amplification structure of

[0024] Figure 7 The overall structure of the injection dissolution device in Example 3 is schematically shown. DETAILED DESCRIPTION

[0025] Below, the embodiments of the present invention are described in detail. In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described in combination with the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments.

[0026] Therefore, the detailed description of the embodiments of the present invention provided below is not intended to limit the scope of the present invention for protection, but merely represents selected embodiments of the present invention. All other embodiments obtained by ordinary technicians in the field without creative work based on the embodiments of the present invention are within the scope of protection of the present invention.

[0027] The terms used herein are intended to explain the embodiments and are not intended to limit and / or define the present invention.

[0028] Example 1

[0029] like Figure 1-Figure 4 As shown, the injection dissolving needle 1 in this embodiment is used in conjunction with the syringe 2 to form an injection dissolving device structure. The injection dissolving needle 1 and the syringe 2 are made of the same material, both are plastic, and the injection dissolving needle 1 and the syringe 2 are detachably connected, that is, the injection dissolving needle 1 can be used in combination with a conventional syringe 2, and only the injection dissolving needle 1 needs to be purchased.

[0030] Specifically, the injection drug needle 1 includes a base 20 and a piercing portion 10 connected to each other, and the piercing portion 10 has a tendency to gradually shrink from the direction close to the base 20 to the direction away from the base 20, that is, the piercing portion 10 is used to pierce the rubber stopper, and a liquid inlet hole 11 and an air inlet groove 12 are respectively provided on the opposite sides of the piercing portion 10. The liquid inlet hole 11 extends from the upper end of the piercing portion 10 to the base 20 and penetrates the base 20, and the orifice formed by the liquid inlet hole 11 on the piercing portion 10 generally extends to the lower position of the middle part of the piercing portion 10, that is, the length of the orifice is greater than half of the overall length of the piercing portion 10, so that the orifice can effectively absorb the drug solution to avoid residue.

[0031] Furthermore, the air inlet groove 12 extends from the upper end of the piercing portion 10 to the upper end of the base 20, and the width of the air inlet groove 12 at the upper end of the piercing portion 10 is greater than the width of the air inlet groove 12 at the lower end of the piercing portion 10, that is, the upper half of the air inlet groove 12 is generally elliptical, and the lower half is generally straight, which is convenient for replenishing and discharging air.

[0032] Moreover, the outer diameter of the base 20 is larger than the outer diameter of the piercing portion 10, and the base 20 forms a limiting step 13 at the connection position with the piercing portion 10, so that the base 20 cannot penetrate into the rubber plug to form a limit. The piercing position can be closed by the limiting step 13 structure to avoid leakage. When the limiting step 13 is slightly opened, air automatically flows into the air inlet groove 12 to achieve air replenishment.

[0033] In addition, a connecting seat 30 is provided below the base 20, the interior of the connecting seat 30 is connected with the base 20 and the liquid inlet 11, and is plugged into the syringe 2 through the connecting seat 30. Ears are protruding on both sides of the connecting seat 30 to facilitate human fingers to press for plugging.

[0034] Example 2

[0035] Combination Figure 5-Figure 6 As shown, in this embodiment, the injection needle 1 and the syringe 2 are also made of plastic material, and the injection needle 1 and the syringe 2 are an integrally formed structure.

[0036] Moreover, the base 20 is composed of a main body 201 and a plurality of ribs 202 protruding from the outside of the main body 201. The main body 201 extends along the tail end of the piercing portion 10, and the distribution of the ribs 202 also forms a limiting step structure, that is, the ribs 202 cannot penetrate the rubber plug.

[0037] Furthermore, a base 40 is disposed below the base 20 , and the outer diameter of the base 40 is greater than the outer diameter of the base 20 . The ribs 102 extend to the upper end surface of the base 40 , and the base 40 is formed at the upper end surface of the syringe 2 .

[0038] Here, one side of the liquid inlet hole 11 faces the center of the syringe 2, while one side of the air inlet groove 12 faces outward.

[0039] Example 3

[0040] Combination Figure 7 As shown, the difference from Example 2 is that one side of the air inlet groove 12 is toward the center of the syringe 2, while the liquid inlet hole 11 is outward.

[0041] The examples shown in the utility model, the embodiments and special forms of the representation have been shown and described in detail in the drawings and the foregoing description, and should also be considered to be illustrative rather than restrictive. The description of special features in one embodiment does not mean that those special features are necessarily limited to that embodiment. The features of one embodiment can be used in combination with the features of other embodiments, which can be understood by those of ordinary skill in the art, whether or not explicitly described in this way. Exemplary embodiments have been shown and described, and all changes and improvements fall into the spirit of the utility model and are expected to be protected.

Claims

1. A needle for injecting a dissolving drug, used in conjunction with a syringe, characterized in that: The injection needle includes a base and a piercing portion connected to each other, the piercing portion has a tendency to gradually shrink from close to the base to away from the base, and a liquid inlet hole and an air inlet groove are respectively provided on opposite sides of the piercing portion, the liquid inlet hole extends from the upper end of the piercing portion to the base and penetrates the base, and the air inlet groove extends from the upper end of the piercing portion to the upper end of the base.

2. The drug dissolving injection needle according to claim 1, characterized in that: The width of the air inlet groove at the upper end of the piercing portion is greater than the width of the air inlet groove at the lower end of the piercing portion.

3. The drug dissolving injection needle according to claim 2, characterized in that: The outer diameter of the base is greater than the outer diameter of the piercing portion, and the base forms a limiting step at the connection position with the piercing portion.

4. The drug dissolving injection needle according to claim 3, characterized in that: A connecting seat is arranged below the base, and the interior of the connecting seat is communicated with the base and the liquid inlet hole.

5. The drug dissolving injection needle according to claim 1, characterized in that: The base comprises a body and a plurality of ribs protruding and arranged on the outer side of the body.

6. The drug dissolving injection needle according to claim 5, characterized in that: A base is arranged below the base, the outer diameter of the base is larger than the outer diameter of the base, and the ribs extend to the upper end surface of the base.

7. An injection dissolving device, characterized in that: It comprises the injection needle as described in any one of claims 1 to 4, and also comprises a syringe, wherein the injection needle and the syringe are made of the same material, and the injection needle and the syringe are detachably connected.

8. An injection dissolving device, characterized in that: It comprises the injection needle as described in any one of claims 1 to 4, and also comprises a syringe, wherein the injection needle and the syringe are made of the same material, and the injection needle and the syringe are integrally formed.

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