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CN-121971293-A - Safety medicine dissolving device for medicine liquid configuration

CN121971293ACN 121971293 ACN121971293 ACN 121971293ACN-121971293-A

Abstract

The invention discloses a safe medicine dissolving device for preparing medicine liquid, which comprises an outer sleeve, a plunger and a puncture needle tube, wherein the outer sleeve comprises a tube body provided with a containing cavity and a puncture part with a through hole in the front end of the tube body in an extending mode, the plunger is arranged in the tube body of the outer sleeve in a sliding mode, the plunger body is an inner sleeve provided with the containing cavity, the front end of the inner sleeve is connected with an elastic part, the outer diameter of the elastic part is in interference fit with the inner diameter of the tube body of the outer sleeve, the puncture needle tube is axially fixed in an inner cavity at the front end of the inner sleeve, the rear section of the puncture needle tube extends into the containing cavity of the inner sleeve, and the front section of the puncture part of the outer sleeve penetrates through the through hole and extends to the front part of the through hole close to an opening end area. The invention prevents the liquid medicine from contacting with the outside air when dispensing, thereby avoiding the pollution of the liquid medicine, eliminating the potential harm of needle puncture to medical staff, and ensuring safer, simpler and more convenient and efficient operation in the whole liquid dispensing process.

Inventors

  • XIANG MINGLIANG
  • MATSUSHITA SHIRO
  • XIANG WEN
  • CHEN JUN

Assignees

  • 淮安易捷科技有限公司

Dates

Publication Date
20260505
Application Date
20260330

Claims (10)

  1. 1. The safe medicine liquid preparing and dissolving device is characterized by comprising the following components: An outer sleeve (1) comprising a tube body (11) provided with a containing cavity and a puncture part (12) with a through hole in the front end of the tube body in an extending way; The plunger (2) is arranged in the outer sleeve body (11) in a sliding manner, the plunger body is an inner sleeve (21) provided with a containing cavity, the front end of the inner sleeve (21) is connected with an elastic part (22), and the outer diameter of the elastic part (22) is in interference fit with the inner diameter of the outer sleeve body (11); The puncture needle tube (3) is axially fixed in the inner cavity at the front end of the inner sleeve (21), the rear section extends into the accommodating cavity of the inner sleeve, and the front section is penetrated in the through hole of the outer sleeve puncture part (12) and extends to the front part of the through hole close to the open end area.
  2. 2. The safety type medicine liquid preparation and dissolution device according to claim 1, wherein the outer surface of the root portion of the puncture part (12) at the front end of the outer sleeve (1) is provided with a protrusion A (13) and/or a concave structure.
  3. 3. The safety type medicine liquid preparation and dissolution device as claimed in claim 1, wherein the outer surface of the puncture part (12) at the front end of the outer sleeve (1) is provided with more than one axial groove (14), and the groove (14) extends to the rear section area of the puncture part (12) and keeps a certain distance from the root.
  4. 4. The safety type medicine liquid preparation and dissolution device according to claim 1, wherein the outer surface of the outer sleeve (1) tube body (11) is provided with a friction force increasing structure A (15).
  5. 5. The safety type medicine liquid preparing and dissolving device according to claim 1, wherein the inner wall surface of the outer sleeve (1) is circumferentially provided with a convex B structure (16) which is arranged at the rear end of the front end elastic part (22) of the inner sleeve.
  6. 6. The safety type drug solution preparing and dissolving device according to claim 5, wherein the inner wall surface of the outer sleeve (1) is circumferentially provided with a convex C structure (17) which is arranged at the front end of the front end elastic part (22) of the inner sleeve.
  7. 7. The safety type medicine liquid preparing and dissolving device according to claim 1, wherein the side wall of the rear section of the inner sleeve (21) of the plunger (2) is provided with more than one notch (23).
  8. 8. The safety type medicine liquid preparation and dissolution device according to claim 1, wherein the rear end of the puncture needle tube (3) is provided with a slope head (31).
  9. 9. The safe medicine liquid preparation and dissolution device according to claim 1, wherein the rear end of the outer sleeve (1) is connected with a protective cover sleeve (4), and the front end is sleeved with a protective sleeve (5).
  10. 10. The safety type medicine liquid preparing and dissolving device according to claim 10, wherein the outer surface of the protective cover sleeve (3) is provided with a friction force increasing structure B (41).

Description

Safety medicine dissolving device for medicine liquid configuration Technical Field The invention relates to the technical field of medical instruments, in particular to a safe medicine dissolving device for preparing medicine liquid. Background Infusion is a common medical procedure. Before medical staff in medical institutions infuse, special mixed liquid medicine is often required to be prepared, and the traditional operation is to complete liquid medicine mixing by adopting a syringe with a needle. Taking a penicillin bottle type powder injection mixed liquor as an example, the mixed liquor needs to be prepared at present in clinical use, the specific operation method is that firstly, a needle at the front end of an injector is inserted into an infusion container, a proper amount of pre-preparation liquor is extracted, the liquor is injected into a powder injection medicine bottle after the needle is pulled out, the liquor is shaken uniformly or pumped repeatedly for a plurality of times, and after the liquor and the medicine powder are fully dissolved, the mixed liquor is extracted and injected into the infusion container. In the process, medical staff needs to continuously operate the injector, often needs to extract the liquid medicine before preparation from the infusion container for many times, then injects the liquid medicine into the medicine powder bottle for repeated work of liquid suction and liquid injection, and has the advantages of high labor intensity, low efficiency and high needling risk, thereby bringing adverse effects on the physical and mental health of the medical staff. Moreover, the syringe needle is easy to cause pollution due to long-time exposure to the air, and the bottle stopper is possibly pierced for many times to generate fallen scraps, so that bacteria and fallen scraps are easy to bring into a medicine dispensing system to cause pollution of medicines, and the medicine dispensing system can cause great harm to human health. Disclosure of Invention Aiming at the problems in the prior art, the invention provides the safe medicine liquid preparation dissolving device, and the medicine liquid is not contacted with the outside air during the medicine preparation, so that the medicine liquid pollution is avoided, the potential harm of needle stabs to medical staff is eliminated, and the whole medicine liquid preparation process is safer, simpler and more convenient to operate and has high efficiency. In order to achieve the above purpose, the present invention provides the following technical solutions: a safety-type drug solution preparing and dissolving device, the device comprising: The outer sleeve comprises a tube body provided with a containing cavity, and a puncture part with a through hole in the front end of the tube body in an extending way; The plunger is arranged in the outer sleeve pipe body in a sliding manner, the plunger main body is an inner sleeve pipe provided with a containing cavity, the front end of the inner sleeve pipe is connected with an elastic part, and the outer diameter of the elastic part is in interference fit with the inner diameter of the outer sleeve pipe body; The puncture needle tube is axially fixed in the inner cavity at the front end of the inner sleeve, the rear section extends into the accommodating cavity of the inner sleeve, and the front section is arranged in the through hole of the puncture part of the outer sleeve in a penetrating way and extends to the front part of the through hole close to the open end area. The further improvement scheme is that the outer surface of the puncture part near the root part at the front end of the outer sleeve is provided with a convex A and/or a concave structure. Is used for clamping the infusion bottle stopper to prevent falling off and ensures the safety of the process of mixing the liquid medicine. More further improvement scheme is, the puncture portion surface of outer tube front end is equipped with more than one axial groove, the recess extends to puncture portion back end region, keeps certain interval with the root. The groove is used for ventilation, the resistance during puncturing is reduced, the groove cannot extend to the root of the puncturing part, and otherwise, the sealing effect cannot be realized. The further improvement scheme is that the outer surface of the outer sleeve pipe body is provided with a friction force increasing structure A. The pull-out device is easy to apply force and skid-proof when being used. The further improvement scheme is that the inner wall surface of the outer sleeve is circumferentially provided with a convex B structure, and the convex B structure is arranged at the rear end of the front end elastic part of the inner sleeve. Plays a limiting role and prevents the plunger from falling out of the outer sleeve. According to a further improvement scheme, a bulge C structure is circumferentially arranged on the inner wall surface of the outer sleeve,