CN210145218U

CN210145218U - Booster for prefilled syringe

Info

Publication number: CN210145218U
Application number: CN201920467343.7U
Authority: CN
Inventors: 杨莹莹; 张燕; 刘建建; 郭学平
Original assignee: Huaxi Biotechnology Co Ltd; Shandong Bloomage Hyinc Biopharm Co Ltd
Current assignee: Huaxi Biotechnology Xiangtan Co ltd; Bloomage Biotech Co Ltd
Priority date: 2019-04-09
Filing date: 2019-04-09
Publication date: 2020-03-17
Anticipated expiration: 2029-04-09

Abstract

The utility model provides a booster for pre-filling and sealing an injector, which comprises a boosting plate, a holding part and a supporting plate; the left side and the right side of the boosting plate symmetrically extend downwards to form holding parts; the holding part extends in a bilateral symmetry manner to form a supporting plate parallel to the boosting plate; the space surrounded by the boosting plate, the holding part and the supporting plate forms an upwards-concave clamping groove, and the shape of the clamping groove is matched with the tail part of a needle tube of the pre-filled syringe; the boosting plate is provided with a push rod hole, the push rod hole is positioned above the clamping groove, and the diameter of the push rod hole is matched with that of a push rod of the prefilled syringe. The booster provided by the utility model effectively provides a push injection and retraction supporting point for a user, saves labor for the user and is stable in operation; the structure is simple, and the method is suitable for industrial mass production; the use is simple and convenient, and the syringe can be clamped only; can be repeatedly used, and is energy-saving and environment-friendly.

Description

Booster for prefilled syringe

Technical Field

The utility model belongs to the field of medical equipment, concretely relates to embedment syringe booster in advance.

Background

The soft tissue filler is effective against facial wrinkles, loss of tissue volume or sagging caused by aging of the human body. It is injected into skin by adopting biocompatible filling material to increase the volume of soft tissue and achieve the purpose of removing wrinkles or shaping. However, the greatest risk of using soft tissue fillers is that, in case of injection into blood vessels, local vascular embolism, localized necrosis of tissues in the mild case, and permanent blindness in the severe case may occur. Therefore, an experienced physician will withdraw a bolus prior to injecting the patient with soft tissue filler. If the force is large during the withdrawal and no blood is withdrawn, the needle does not penetrate into the blood vessel, and the filler can be injected; if blood enters the syringe during withdrawal, indicating that the needle has penetrated the blood vessel, the depth and direction of penetration must be adjusted.

At present, soft tissue fillers are often filled in pre-filled glass syringes for direct use by doctors. However, the syringe is made of glass, has smooth surface and thin diameter, and has small friction with the hand of a user, so that the syringe can be used better and stably only by installing a boosting plate. The existing boosting plate only provides a supporting point for the user during pushing and does not provide a supporting point for the user during withdrawal. This causes the disadvantages of easy slipping, inconvenient force control, unstable operation, etc. when the user withdraws.

Disclosure of Invention

The booster to being used for embedment syringe in advance at present only can play the shortcoming of boosting effect, the utility model provides a booster for embedment syringe in advance can provide and push away, draw two-way helping hand, simple structure.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the booster for the pre-filling and sealing injector comprises a boosting plate, a holding part and a supporting plate; the left side and the right side of the boosting plate symmetrically extend downwards to form holding parts; the holding part extends in a bilateral symmetry manner to form a supporting plate parallel to the boosting plate; the space surrounded by the boosting plate, the holding part and the supporting plate forms an upwards-concave clamping groove, and the shape of the clamping groove is matched with the tail part of a needle tube of the pre-filled syringe; the boosting plate is provided with a push rod hole, the push rod hole is positioned above the clamping groove, and the diameter of the push rod hole is matched with that of a push rod of the prefilled syringe.

The push rod hole is a circular through hole on the boosting plate, or a semicircle or a major arc with one side opened.

The holding part is an arc surface and takes the longitudinal symmetric axis of the booster as the circle center.

The left side and the right side of the holding part can be closed in front of the booster, and only the back side is opened. Only the holding part with the rear opening can provide more stable fixation when the needle tube is clamped in, and the needle tube is prevented from being pushed out from the other side due to excessive force during clamping. Further, in order to increase the mechanical strength of the booster and prevent elastic deformation during use, the upper end of the front surface of the holding part may be connected with the boosting plate, and the lower end may be connected with the support plate.

The booster is made of hard plastic or hard rubber. Preferably, the booster is made of polytetrafluoroethylene.

Preferably, the inner side surface of the holding part is provided with a non-slip mat. The non-slip mat is made of rubber or silica gel. The non-slip mat can be one or more. Preferably, the non-slip mat is a plurality of non-slip points distributed in a matrix or a plurality of non-slip strips parallel to the plane of the booster plate. The slipmat of the portion of gripping can effectively increase the frictional force of cylinder and whole booster, makes the cylinder stable at the pumpback or injection in-process, prevents the relative displacement between cylinder and the booster, improves the stability and the security of operation.

Before injection or withdrawal operation, the booster is clamped at the tail of a needle tube of a prefilled syringe, and a push rod of the syringe penetrates through a push rod hole and is plugged into the needle tube to complete assembly; or a pre-filled syringe with a push rod is directly clamped into the booster. When the device is used, the two fingers clamp the holding part, and when the withdrawal operation is carried out, the fingers prop against the supporting plate to provide acting points for the fingers, so that the operation is stable; when the injection operation is carried out, the fingers support the boosting plate, and the pressure pain feeling of the fingers in the injection process can be effectively relieved due to the large area of the boosting plate; and after the injection is finished, the booster is taken down. The booster can be used repeatedly.

The utility model has the advantages of it is following:

the utility model provides a booster for prefilled syringe effectively provides the user with the push injection and withdrawal support point, the user saves labor and operates stably; the structure is simple, and the method is suitable for industrial mass production; the use is simple and convenient, and the syringe can be clamped only; can be repeatedly used, and is energy-saving and environment-friendly.

Drawings

FIG. 1 is a schematic longitudinal cross-sectional view of a booster of an embodiment taken along a transverse center line of a booster plate;

FIG. 2 is a schematic top view of a booster according to embodiment 1;

FIG. 3 is a schematic diagram of the booster and pre-filled syringe in the example;

FIG. 4 is a schematic top view of a booster according to embodiment 2;

the boosting device comprises a boosting plate 1, a holding part 2, a supporting plate 3, an anti-slip pad 4, a clamping groove 5, a push rod hole 6, a needle tube 7 and a push rod 8.

Detailed Description

The present invention will be further described with reference to the following examples and drawings, but the present invention is not limited to the following examples.

Example 1

The booster for pre-filling and sealing the syringe as shown in figures 1 and 2 comprises a boosting plate (1) made of polytetrafluoroethylene, a holding part (2) at two sides and a supporting plate (3); the left side and the right side of the boosting plate (1) symmetrically extend downwards to form holding parts (2); the holding part (2) extends in a bilateral symmetry manner to form a support plate (3) parallel to the boosting plate (1); a clamping groove (5) which is concave upwards is formed in the space surrounded by the boosting plate (1), the holding part (2) and the supporting plate (3), and the shape of the clamping groove (5) is matched with the tail part of a needle tube of the pre-filled syringe; a push rod hole (6) is formed in the boosting plate (1) and is a circular through hole, the push rod hole (6) is located above the clamping groove (5), and the diameter of the push rod hole is matched with that of a push rod of a pre-encapsulated syringe; the inner side surface of the holding part (2) is provided with a plurality of antiskid pads (4) which are distributed in a matrix and are made of point-mounted medical rubber materials.

As shown in fig. 3, before injection or withdrawal operation, the tail of the needle tube (7) of the prefilled syringe is clamped in the clamping groove (5) of the booster, and the push rod (8) of the syringe is inserted into the needle tube through the push rod hole (6) to complete assembly; when in use, the forefinger and the middle finger clamp the holding part (2). When the withdrawing operation is carried out, the two fingers prop against the supporting plate (3) to provide acting points for the fingers, so that the operation is stable; when the injection operation is carried out, two fingers support the boosting plate (1), and the thumb presses the injector push rod (8), so that the pressure pain feeling of the fingers in the injection process can be effectively relieved due to the large area of the boosting plate (1). Meanwhile, the anti-slip pad (4) of the holding part (2) enables the needle tube (7) to be stable in the process of withdrawing or injecting, relative displacement between the needle tube (7) and the booster is prevented, and stability and safety of operation are improved. After the injection is finished, the push rod (8) of the injector is pulled out, and the booster is taken down.

Example 2

The booster for pre-filling and sealing the syringe as shown in figures 1 and 4 comprises a boosting plate (1) made of polytetrafluoroethylene, a holding part (2) at two sides and a supporting plate (3); the left side and the right side of the boosting plate (1) symmetrically extend downwards to form holding parts (2); the holding part (2) extends in a bilateral symmetry manner to form a support plate (3) parallel to the boosting plate (1); the holding part (2) is closed in front to form an arc surface with the longitudinal symmetry axis of the booster as the center of a circle, the upper end of the holding part is connected with the front of the boosting plate (1), and the lower end of the holding part is connected with the front of the supporting plate (3); a clamping groove (5) which is concave upwards is formed in the space surrounded by the boosting plate (1), the holding part (2) and the supporting plate (3), and the shape of the clamping groove (5) is matched with the tail part of a needle tube (7) of the pre-filled syringe; the boosting plate (1) is provided with a major arc push rod hole (6) with a rear side opening, the push rod hole (6) is positioned above the clamping groove (5), and the diameter of the push rod hole is matched with that of a push rod (8) of the prefilled syringe; the inner side surface of the holding part (2) is provided with a plurality of anti-slip pads (4) which are parallel to the plane of the boosting plate (1) and are made of strip silica gel materials.

As shown in figure 3, before injection or withdrawal operation, the tail part of the needle tube (7) of the pre-filled syringe with the push rod (8) is directly clamped into the clamping groove (5) of the booster. When in use, the forefinger and the middle finger clamp the holding part (2). When the withdrawing operation is carried out, the two fingers prop against the supporting plate (3) to provide acting points for the fingers, so that the operation is stable; when the injection operation is carried out, two fingers support the boosting plate (1), and the thumb presses the injector push rod (8), so that the pressure pain feeling of the fingers in the injection process can be effectively relieved due to the large area of the boosting plate (1). Meanwhile, the anti-slip pad (4) of the holding part (2) enables the needle tube (7) to be stable in the process of withdrawing or injecting, relative displacement between the needle tube (7) and the booster is prevented, and stability and safety of operation are improved. After the injection is finished, the push rod (8) can be pulled out to directly take down the booster due to the opening of the rear side of the push rod hole (6).

Claims

1. A booster for pre-filled syringes, characterized in that: comprises a boosting plate, a holding part and a supporting plate; the left side and the right side of the boosting plate symmetrically extend downwards to form holding parts; the holding part extends in a bilateral symmetry manner to form a supporting plate parallel to the boosting plate; the space surrounded by the boosting plate, the holding part and the supporting plate forms an upwards-concave clamping groove, and the shape of the clamping groove is matched with the tail part of a needle tube of the pre-filled syringe; the boosting plate is provided with a push rod hole, the push rod hole is positioned above the clamping groove, and the diameter of the push rod hole is matched with that of a push rod of the prefilled syringe.

2. A booster as set forth in claim 1, wherein: the push rod hole is a circular through hole on the boosting plate or a semicircle or an arc with one side opened.

3. A booster as set forth in claim 1, wherein: the holding part is an arc surface taking the longitudinal axis as the center of a circle.

4. A booster as set forth in claim 1, wherein: the left and right sides of the holding part are closed in front.

5. A booster as set forth in claim 4, wherein: the upper end in front of the holding part is connected with the boosting plate, and the lower end of the holding part is connected with the supporting plate.

6. A booster as set forth in claim 1, wherein: the booster is made of hard plastic or hard rubber.

7. A booster as set forth in claim 1, wherein: the booster is made of polytetrafluoroethylene.

8. A booster as set forth in claim 1, wherein: one or more anti-slip pads are arranged on the inner side surface of the holding part.

9. A booster as set forth in claim 8, wherein: the non-slip mat is a plurality of non-slip points distributed in a matrix manner or a plurality of non-slip strips parallel to the plane of the boosting plate.

10. A booster as set forth in claim 8, wherein: the non-slip mat is made of rubber or silica gel.