CN218944054U

CN218944054U - Split type anesthetic needle convenient to administer

Info

Publication number: CN218944054U
Application number: CN202222362295.XU
Authority: CN
Inventors: 胡朝奇; 刘燕; 朱伟; 徐刚
Original assignee: Wuhu Simcere Zhongren Pharmaceutical Co ltd
Current assignee: Wuhu Simcere Zhongren Pharmaceutical Co ltd
Priority date: 2022-09-06
Filing date: 2022-09-06
Publication date: 2023-05-02
Anticipated expiration: 2032-09-06

Abstract

The utility model discloses a split type anesthetic needle convenient for drug administration, which relates to the field of injection drug administration devices and comprises a needle tube, wherein the rear end of the needle tube is fixedly provided with a connector, a lumen is arranged in the connector, the lower end of the lumen is communicated with the needle tube, the upper end of the lumen is freely opened from the upper end of the connector, a pre-fixing assembly is inserted into the lumen, a medicine column is inserted into the center of the pre-fixing assembly, the outer wall of the connector is in threaded connection with a propelling assembly, and the propelling assembly is used for propelling the front end of the medicine column to a position communicated with the needle tube. The utility model adopts a split design, and the pre-fixing component is used for pre-fixing the medicine column on the joint before the medicine is administered, so that the subsequent injection medicine administration operation is convenient, and the probability of medicine leakage is effectively reduced due to the fact that the medicine column is fixedly abutted with the needle tube.

Description

Split type anesthetic needle convenient to administer

Technical Field

The utility model relates to the field of injection administration devices, in particular to a split type anesthetic needle convenient for administration.

Background

The existing disposable anesthetic needle is provided with a longer needle tube, and the rear end of the needle tube is connected with a hollow joint, so that the injector can be conveniently inserted. However, when the drug is in the form of a tubular implant, the injection cannot be performed by using an injector, and the tubular implant cannot be inserted and fixed in the joint because the diameter of the tubular implant is greatly smaller than that of a cavity in the joint, so that the tubular implant and the joint are required to be held by hand during administration, and after the tubular implant is aligned to a needle tube, the drug in the tubular implant is pushed out by using an injection rod and injected to an administration position by using the needle tube, so that the injection device is very inconvenient to use. Moreover, due to manual alignment, the medicine is easy to leak, so that the dosage is inaccurate.

Disclosure of Invention

The utility model aims to provide a split type anesthetic needle convenient for administration, which solves the problem that the existing disposable anesthetic needle cannot be pre-fixed when a tubular implant is used for administration.

In order to solve the problems, the utility model provides the following technical scheme:

the utility model provides a split type anesthesia needle convenient to administer, includes the needle tubing, the rear end of needle tubing sets firmly the joint, be equipped with the lumen in the joint, the lower extreme intercommunication needle tubing of lumen, the upper end of lumen is by the upper end free opening of joint, the intracavity has the prefixed subassembly, the central authorities of prefixed subassembly peg graft has the grain, the outer wall threaded connection of joint has propulsion unit, propulsion unit is used for advancing the front end of grain to the position with the needle tubing intercommunication.

Preferably, the pre-fixing assembly comprises a positioning plug inserted in the middle upper part of the tube cavity, a through hole is formed in the center of the positioning plug, the medicine column is inserted in the through hole, and the through hole and the needle tube are coaxially arranged.

Preferably, the middle upper part of the tube cavity is columnar, the bottom of the tube cavity is conical, a plurality of slots are formed in the inner wall of the columnar part of the tube cavity, a plurality of protrusions are formed in the outer wall of the positioning plug, and the protrusions are inserted into the slots.

Preferably, the propulsion assembly comprises a sleeve threadedly connected to the outer wall of the joint, the sleeve having a top free opening, the sleeve top being threadedly connected to the top cap.

Preferably, the joint is made of transparent material.

The utility model has the advantages that:

the utility model adopts a split design, and the pre-fixing component is used for pre-fixing the medicine column on the joint before the medicine is administered, so that the subsequent injection medicine administration operation is convenient, and the probability of medicine leakage is effectively reduced due to the fact that the medicine column is fixedly abutted with the needle tube.

The utility model utilizes the sleeve and the top cover to slowly push down the medicine column to a proper medicine feeding position, so that the control on the medicine column position is simpler and more stable, and the situation of incomplete butt joint is prevented. The bulge on the positioning plug is matched with the slot on the connector, so that the positioning plug can be prevented from rotating in the connector, and the pre-fixing stability is improved. The detachable connection of top cap and sheathed tube is convenient for insert the push rod fast and administer after the grain descends in place, improves operating efficiency. In addition, the positioning plug is separated from the connector, so that the connection between the connector and the syringe before administration is not hindered, and the operations such as flushing, sampling and the like are facilitated.

Drawings

Fig. 1 is a schematic view of the overall structure of a split anesthetic needle and a push rod.

Fig. 2 is a top view of a split anesthetic needle.

Fig. 3 is a cross-sectional view taken along A-A in fig. 2.

Fig. 4 is a side view of a split anesthetic needle.

Fig. 5 is a sectional view taken along the direction B-B in fig. 4.

Fig. 6 is a schematic view of the internal structure of the anesthetic needle after removing the pre-fixing assembly.

Wherein, 1-needle tubing, 2-joint, 21-lumen, 22-slot, 3-sleeve, 31-top cover, 4-positioning plug, 41-bulge, 42-through hole, 5-push rod.

Detailed Description

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

As shown in fig. 1 to 6, a split type anesthetic needle convenient to administer medicine, including needle tubing 1, the rear end of needle tubing 1 has set firmly joint 2, be equipped with lumen 21 in the joint 2, the lower extreme intercommunication needle tubing 1 of lumen 21, the upper end of lumen 21 is by the upper end free opening of joint 2, peg graft in the lumen 21 have the prefixed subassembly, the central authorities of prefixed subassembly peg graft has the grain, the outer wall threaded connection of joint 2 has propulsion unit, propulsion unit is used for advancing the front end of grain to the position with needle tubing 1 intercommunication.

In this embodiment, the pre-fixing assembly includes a positioning plug 4 inserted in the middle upper portion of the lumen 21, a through hole 42 is provided in the center of the positioning plug 4, the cartridge is inserted in the through hole 42, and the through hole 42 and the needle tube 1 are coaxially disposed. The Chinese medicine column in this embodiment is made of fluorouracil implant produced by the pioneering Chinese medicine industry, and is prepared by filling chemotherapy medicine in hollow tube, the outer diameter of the hollow tube is slightly larger than the inner diameter of needle tube 1, and the hollow outer diameter is slightly smaller than or equal to through hole 42. When the injection rod 5 passes through the medicine column, all the medicine in the medicine column can be injected into the needle tube 1 just, and then the medicine is pushed out to the administration position by the needle tube 1.

In this embodiment, the middle and upper parts of the lumen 21 are columnar, the bottom of the lumen 21 is conical, a plurality of slots 22 are provided on the inner wall of the columnar part of the lumen 21, a plurality of protrusions 41 are provided on the outer wall of the positioning plug 4, and the protrusions 41 are inserted into the slots 22. The length of the slot 22 may be smaller than the length of the cylindrical portion of the lumen 21, so that a syringe head may also be inserted into the lumen 21.

In this embodiment, the propulsion assembly comprises a sleeve 3 screwed onto the outer wall of the joint 2, the top of the sleeve 3 being free to open, and a cap 31 screwed onto the top of the sleeve 3. The removable attachment of the cap 31 may facilitate the direct bolus injection of the drug using the bolus rod 5 after the drug column is in place.

In this embodiment, the connector 2 is made of transparent material, so as to facilitate observation of whether the lower end of the cartridge is in butt-joint communication with the rear end of the needle tube 1.

Working process and principle:

during administration, a tubular medicine column is partially inserted into the through hole 42, most of the tubular medicine column is exposed outside the positioning plug 4, then the protrusion 41 on the positioning plug 4 is aligned with the slot 22 and then is completely inserted into the columnar part of the pipe cavity 21, at the moment, the positioning plug 4 is completely clamped in the pipe cavity 21, the sleeve 3 is screwed on and rotates downwards all the time, at the moment, the top cover 31 presses down the top of the tubular medicine column, the tubular medicine column is pressed down to enter the through hole 42 and passes through the lower end of the through hole 42 until the needle tube 1 is butted, at the moment, the sleeve 3 stops rotating, the top cover 31 is screwed off, the upper end of the tubular medicine column is exposed, at the moment, the push rod 5 is inserted from the upper end of the tubular medicine column and is always inserted into the needle tube 1 until the medicine is completely discharged from the needle tube 1, at the moment, administration is completed, and the needle tube 1 is pulled out.

It will be appreciated by those skilled in the art that the present utility model can be carried out in other embodiments without departing from the spirit or essential characteristics thereof. Accordingly, the above disclosed embodiments are illustrative in all respects, and not exclusive. All changes that come within the scope of the utility model or equivalents thereto are intended to be embraced therein.

Claims

1. The utility model provides a split type anesthesia needle convenient to administer, its characterized in that, includes needle tubing (1), the rear end of needle tubing (1) sets firmly joint (2), be equipped with lumen (21) in joint (2), the lower extreme intercommunication needle tubing (1) of lumen (21), the upper end of lumen (21) is by the upper end free opening of joint (2), the pre-fixed subassembly has been inserted in lumen (21), the central authorities of pre-fixed subassembly peg graft there is the grain, the outer wall threaded connection of joint (2) has propulsion unit, propulsion unit is used for advancing the front end of grain to the position with needle tubing (1) intercommunication.

2. A split anesthetic needle convenient for administration according to claim 1, wherein the pre-fixing assembly comprises a positioning plug (4) inserted in the middle upper part of the lumen (21), a through hole (42) is arranged in the center of the positioning plug (4), the medicine column is inserted in the through hole (42), and the through hole (42) and the needle tube (1) are coaxially arranged.

3. The split type anesthetic needle convenient for administration according to claim 2, wherein the middle upper part of the tube cavity (21) is columnar, the bottom of the tube cavity (21) is conical, a plurality of slots (22) are formed in the inner wall of the columnar part of the tube cavity (21), a plurality of protrusions (41) are formed in the outer wall of the positioning plug (4), and the protrusions (41) are inserted into the slots (22).

4. A split anesthetic needle for facilitating administration according to claim 1, wherein the propulsion assembly comprises a sleeve (3) screwed on an outer wall of the adapter (2), a top free opening of the sleeve (3), and a top cap (31) screwed on a top of the sleeve (3).

5. A split anesthetic needle convenient for administration as claimed in claim 4, wherein said connector (2) is of transparent material.