Novel protective cap for Luer lock of pre-filled syringe
The design of the new pre-filled syringe with Luer lock cap solves the problem of cap loosening and falling off in the existing technology, achieving higher sealing performance and safety in use, and reducing the risk of medical accidents.
Patent Information
- Application Number
- CN202422651888.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2034-10-31
AI Technical Summary
The caps of existing pre-filled syringes are prone to loosening and falling off after high-temperature sterilization, resulting in poor sealing, leakage and contamination risks, and affecting safety during use.
A novel Luer lock cap structure was designed, comprising a hard cap, a rubber cap, and an outer retaining ring. The connection between the ring retaining ring and the sealing seat increases the contact area and bonding force, and the toothed groove design is eliminated to improve the sealing performance.
This improves the connection between the cap and the syringe, preventing loosening and detachment after high-temperature sterilization, reducing the risk of leakage and contamination, and enhancing safety in use.
Smart Images
Figure CN223746783U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to syringe cap technical field, specifically a kind of new pre-filled syringe luer lock cap. BACKGROUND
[0002] Pre-filled syringe is a new type of medicine packaging material, equivalent to ordinary medicine packaging container when storing medicine, and equivalent to ordinary syringe when using. Pre-filled syringe is more applied in the field of vaccine, first aid, etc., and requires direct filling of medicine to reduce cross contamination, direct injection use, which takes into account the two functions of medicine packaging and clinical injection use. After pre-filling liquid, a cap needs to be provided at the liquid outlet end of the pre-filled syringe barrel to seal the liquid outlet end of the barrel to prevent contamination of the liquid outlet end of the barrel, and then high-temperature disinfection storage is carried out. When used by medical staff, the rear part of the cap is removed, and then the needle is installed to perform injection.
[0003] The outer side of the luer lock hole of the existing cap is provided with a plurality of tooth grooves in communication therewith. After high-temperature sterilization of the pre-filled syringe barrel and the cap, due to the difference in expansion coefficient between the glass barrel and the plastic cap, the sealing is not tight, which can cause the barrel and the cap to be not firmly installed, and can easily cause loosening and falling off, which can cause leakage and contamination hazards, and can cause multiple medical accidents in market terminal use. UTILITY MODEL CONTENTS
[0004] The utility model aims to provide a new pre-filled syringe luer lock cap.
[0005] A new pre-filled syringe luer lock cap, comprising a hard cap, a rubber cap and an outer clasp, the top of the hard cap is provided with an annular clasp and a pointed cap body fixedly connected thereto in sequence, the outer portion of the pointed cap body is provided with external threads, the inner portions of the hard cap, the annular clasp and the pointed cap body are provided with through holes, the inner portion of the rubber cap is provided with a sealing hole, the bottom of the rubber cap is provided with a sealing seat, the outer portion of the rubber cap is provided with an annular clamping groove matched with the annular clasp, the inner portion of the outer clasp is provided with internal threads matched with the external threads, and the top of the outer clasp is provided with a luer lock hole.
[0006] Further, the hard cap, the annular clasp and the pointed cap body are integrally formed, a plurality of inner protruding blocks matched with the sealing seat are uniformly arranged in the through hole, and the inner protruding blocks are fixedly connected with the hard cap.
[0007] Further, a plurality of outer protruding blocks one are fixedly arranged on the outer side of the hard cap.
[0008] Further, a plurality of outer protruding blocks two are fixedly arranged on the outer side of the outer clasp.
[0009] In conclusion, the utility model has the following beneficial effects:
[0010] The rubber protective cap is connected through the cooperation of the annular clasp, the annular clamping groove, the sealing seat and the inner protruding block, effectively preventing the rubber protective cap from falling off; the outer clasp is connected with the Luer lock taper joint at the front end of the pre-sealed syringe needle cylinder through the Luer lock hole, and the connection is firm. BRIEF DESCRIPTION OF DRAWINGS
[0011] The utility model will be further explained below:
[0012] Figure 1 It is a structural diagram of a novel pre-sealed syringe Luer lock protective cap of the utility model;
[0013] Figure 2 It is an explosion of a novel pre-sealed syringe Luer lock protective cap of the utility model Figure One ;
[0014] Figure 3 It is an explosion of a novel pre-sealed syringe Luer lock protective cap of the utility model Figure Two .
[0015] In the drawing: 1 hard protective cap, 2 pointed cap body, 3 annular clasp, 4 through hole, 5 outer thread, 6 outer protruding block one, 7 inner protruding block, 8 rubber protective cap, 9 sealing hole, 10 annular clamping groove, 11 sealing seat, 12 outer clasp, 13 inner thread, 14 outer protruding block two, 15 Luer lock hole. DETAILED DESCRIPTION
[0016] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below, obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments.
[0017] The following will be combined with the Figures 1-3 The utility model will be further explained:
[0018] The application discloses a new type of pre-filled syringe luer lock protector cap, which comprises a hard protector cap 1, a rubber protector cap 8 and an outer clasp 12, the top of the hard protector cap 1 is sequentially provided with an annular clasp 3 and a pointed cap body 2 which are fixedly connected with the hard protector cap 1, the outer part of the pointed cap body 2 is provided with an outer thread 5, the hard protector cap 1, the annular clasp 3 and the pointed cap body 2 are integrally formed, the inner part of the hard protector cap 1, the annular clasp 3 and the pointed cap body 2 is provided with a through hole 4, the inner part of the rubber protector cap 8 is provided with a sealing hole 9, the bottom of the rubber protector cap 8 is provided with a sealing seat 11, the through hole 4 is uniformly provided with a plurality of inner protruding blocks 7 which are matched with the sealing seat 11, the inner protruding blocks 7 are fixedly connected with the hard protector cap 1, the outer part of the rubber protector cap 8 is provided with an annular clasp slot 10 which is matched with the annular clasp 3, the inner part of the outer clasp 12 is provided with an inner thread 13 which is matched with the outer thread 5, and the top of the outer clasp 12 is provided with a luer lock hole 15.
[0019] In the embodiment, the rubber protector cap 8 is arranged in the through hole 4, and the rubber protector cap 8, the hard protector cap 1, the annular clasp 3 and the pointed cap body 2 are combined into an integrated whole. Preferably, the sealing seat 11 and the inner protruding blocks 7 are matched, the annular clasp 3 and the annular clasp slot 10 are matched, and the rubber protector cap 8 is fixed in the through hole 4 to prevent the rubber protector cap 8 from falling off. The outer side of the luer lock hole 15 is not provided with a tooth groove which is communicated with the luer lock hole 15, the contact area of the outer clasp 12 and the luer lock taper joint at the front end of the pre-filled syringe needle cylinder is increased, the combination force between the outer clasp 12 and the luer lock taper joint at the front end of the pre-filled syringe needle cylinder is increased, the sealing property is improved, the situation that the outer clasp 12 and the pre-filled syringe needle cylinder are easily loose or even detached after high-temperature sterilization is improved, the existence of leakage and pollution hidden dangers is eliminated, and the hidden dangers of medical accidents are reduced.
[0020] The outer clasp 12 and the pointed cap body 2 are threadedly matched through the inner thread 13 and the outer thread 5. Preferably, the front end of the pre-filled syringe needle cylinder is a luer lock taper joint. The outer part of the luer lock taper joint at the front end of the pre-filled syringe needle cylinder is matched and connected with the luer lock hole 15, and the liquid outlet end of the luer lock taper joint at the front end of the pre-filled syringe needle cylinder is inserted into the sealing hole 9 to be sealed.
[0021] The outer side of the hard protector cap 1 is fixedly provided with a plurality of outer protruding blocks one 6, and the outer side of the outer clasp 12 is fixedly provided with a plurality of outer protruding blocks two 14.
[0022] In the embodiment, preferably, the outer protruding blocks one 6 and the outer protruding blocks two 14 can play the anti-skid role and facilitate dismounting and mounting.
[0023] When the medical staff uses the pre-filled syringe luer lock protector cap, the hard protector cap 1 is rotated, the inner thread 13 and the outer thread 5 are threadedly matched to be loose, and then the combination of the rubber protector cap 8, the hard protector cap 1, the annular clasp 3 and the pointed cap body 2 is dismounted. At this time, the outer clasp 12 is connected to the front end of the pre-filled syringe needle cylinder through the luer lock structure. The medical staff threadedly connects the needle structure with the outer clasp 12, and then injection can be carried out.
[0024] The rubber protective cap 8 is connected through the annular clasp 3, the annular clamping groove 10, the sealing seat 11 and the inner protruding block 7, which effectively prevents the rubber protective cap 8 from falling off; the outer clasp 12 is connected through the luer lock hole 15 and the luer lock taper joint at the front end of the pre-filled syringe needle cylinder, and the connection is firm; the liquid outlet end of the luer lock taper joint at the front end of the pre-filled syringe needle cylinder is inserted into the sealing hole 9, and the sealing performance is good, so that the leakage and pollution hidden danger are eliminated.
[0025] In the description of the present patent, it should be understood that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present patent and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present patent.
[0026] In the description of the present patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "setting" should be understood broadly, for example, it can be fixedly connected, set, or detachably connected, set, or integrally connected, set. For those skilled in the art, the specific meanings of the above terms in the present patent can be understood according to the specific circumstances.
Claims
1. A novel pre-filled syringe luer lock protector cap characterized in that, The utility model relates to a hard cap (1), rubber cap (8) and outer snap ring (12) are included, the top of hard cap (1) is sequentially provided with annular snap ring (3) and sharp cap body (2) fixedly connected with it, the outside of sharp cap body (2) is provided with outer thread (5), the inside of hard cap (1), annular snap ring (3) and sharp cap body (2) are seted up and are opened with through -hole (4), the inside of rubber cap (8) is seted up and is opened with sealed hole (9), the bottom of rubber cap (8) is provided with sealed seat (11), the outside of rubber cap (8) is provided with annular snap groove (10) with annular snap ring (3) cooperation, the inside of outer snap ring (12) is provided with inner thread (13) with outer thread (5) cooperation, the top of outer snap ring (12) is provided with luer lock hole (15).
2. A new pre-filled syringe luer lock protector cap as claimed in claim 1, wherein, The hard cap (1), annular snap ring (3) and sharp cap body (2) are integrally formed, a plurality of inner protruding blocks (7) matched with the sealed seat (11) are uniformly arranged in the through hole (4), and the inner protruding blocks (7) are fixedly connected with the hard cap (1).
3. A new pre-filled syringe luer lock protector cap as claimed in claim 1, wherein, A plurality of outer protruding blocks one (6) are fixedly arranged on the outer side of the hard cap (1).
4. A new pre-filled syringe luer lock protector cap as claimed in claim 1, wherein, A plurality of outer protruding blocks two (14) are fixedly arranged on the outer side of the outer snap ring (12).