WO2014082412A1

WO2014082412A1 - Syringe capable of repeatedly using drive device, and liquid storage device thereof

Info

Publication number: WO2014082412A1
Application number: PCT/CN2013/074055
Authority: WO
Inventors: 张煜佳
Original assignee: 电白县康尔美生物科技有限公司
Priority date: 2012-11-30
Filing date: 2013-04-11
Publication date: 2014-06-05
Also published as: CN102961804B; CN102961804A

Abstract

A syringe capable of repeatedly using a drive device, and a liquid storage device (100) thereof. The syringe is provided with a liquid storage device (100) and a drive device (200); the liquid storage device (100) is provided with a connection joint (110) and an elastic medicine bladder (120), the elastic medicine bladder (120) is disposed in an inner cavity of he connection joint (110), and the elastic medicine bladder (120) is connected to the inner cavity of the connection joint (110) in a sealing manner; the drive device (200) is provided with a jacket (210) and a core bar (220), one end of the core bar (220) is provided with a rubber plug (221), the core bar (220) is disposed inside of the jacket (210) and the rubber plug (221) contacts the inner wall surface of the jacket (210) in a sealing manner, and the connection joint (110) is disposed at an assembly end (211) of the jacket (200); and the elastic medicine bladder (120) is provided with a bladder wall (121) and a bladder cavity (122). The drive device (200) is further provided with a unidirectional fastening structure, and the unidirectional fastening structure is provided with a mounting base (231), an injection clip (232), and an elastic part (233); the core bar (220) is further provided with a clipping position (222), a clip end (2321) is fastened to the clipping position (222). The syringe can repeatedly use the drive device, so that the money spent by the patients is saved and the raw materials are greatly conserved, thereby conforming to the environmental requirements.

Description

Description A syringe and a liquid storage device thereof capable of reusing a booster device

The present invention relates to the field of medical device technology, and more particularly to a syringe for reusable booster device and a liquid storage device thereof.

Background technique

Syringes are one of the most commonly used medical supplies for intravenous injection in the medical field. In the prior art, the syringe is usually composed of a main component such as a jacket, a core rod fitted inside the jacket, and an injection needle. When liquid suction is performed, the core rod is pulled, and the negative pressure is generated to draw the liquid into the inner cavity of the outer casing. When the injection is performed, the core rod is pushed backward to push the liquid out of the inner cavity of the outer casing through the injection needle for injection.

Prior art syringes, as long as they have been used once, have their outer casing, core rod and injection needle discarded, making it impossible to reuse the syringe or part of the components that make up the syringe. Not only is the patient's cost of use high, but after a single use, the components of the syringe need to be discarded, material waste is severe, and environmental requirements are not met.

Therefore, in view of the deficiencies of the prior art, it is highly desirable to provide a reusable booster syringe and its liquid storage device to overcome the deficiencies of the prior art.

Summary of the invention

One of the objects of the present invention is to provide a syringe for a reusable booster device that avoids the deficiencies in the prior art, and that has the feature of being able to reuse the booster device.

The above object of the present invention is achieved by the following technical measures.

Providing a reusable booster device with a liquid storage device and a boosting device;

The liquid storage device is provided with a connection joint and an elastic drug bag, the elastic drug bag is fitted into the inner cavity of the connection joint, and the elastic drug bag is sealingly connected with the inner cavity of the connection joint; The boosting device is provided with a jacket and a core rod, one end of the core rod is provided with a rubber plug, the core rod is fitted inside the outer sleeve and the rubber plug is in sealing contact with the inner wall surface of the outer sleeve, A joint is fitted to the assembled end of the outer casing.

The elastic sachet is provided with a capsule wall and a capsule cavity, and the capsule wall is fixedly connected to the capsule cavity, and the capsule wall is sealingly connected to the wall surface of the connection joint inner cavity.

The capsule wall and the capsule cavity are provided in an integrally formed structure.

The above-mentioned boosting device is further provided with a one-way locking mechanism, and the one-way locking mechanism is provided with a mounting seat, an injection buckle and an elastic member;

The mounting seat is fixedly disposed on an outer wall surface of the open end of the outer casing, and the injection buckle is disposed on the mounting seat;

The injection buckle is provided with a buckle end for snap fitting the core rod, and the other end of the injection buckle is a tail end, and two ends of the elastic member respectively correspond to the tail end and the outer sleeve Abutting the outer wall surface;

The core rod is further provided with a buckle, and the buckle end is buckled and assembled to the buckle position.

The buckle is provided as a strip body, and the strip body is provided with a buckle tooth, and the buckle end is fastened to the buckle tooth.

The syringe of the above reusable boosting device is further provided with a core rod positioning card, the core rod positioning clip is sleeved on the core rod and the core rod positioning card is fitted to the open end of the outer sleeve.

The core positioning card is provided with a card slot, and the strip body is matched with the card slot.

The outer wall surface of the fitting end of the outer casing is provided with an external thread, and the inner wall surface of the joint is provided with an internal thread, and the outer casing and the joint are threadedly coupled.

The syringe of the above reusable boosting device is further provided with an injection needle which is fitted to the taper joint of the joint.

The syringe of the above reusable boosting device is further provided with a needle sleeve, and the needle sleeve is sleeved on the injection needle.

Another object of the present invention is to provide a repeatable one that avoids the deficiencies in the prior art. A syringe liquid storage device using a boosting device, by which the syringe can be realized to realize the repeated use of the boosting device.

The above object of the present invention is achieved by the following technical means.

Providing a liquid storage device, the syringe for the above reusable boosting device, provided with a connection joint and an elastic drug bag, the elastic drug bag being fitted into the inner cavity of the joint, the elastic drug bag and The connecting joint inner cavity is sealedly connected.

The syringe of the reusable boosting device of the present invention is provided with a liquid storage device and a boosting device; the liquid storage device is provided with a connection joint and an elastic drug capsule, and the elastic drug capsule is fitted in the inner cavity of the joint The elastic drug capsule is sealingly connected to the inner cavity of the connecting joint; the boosting device is provided with a jacket and a core rod, one end of the core rod is provided with a rubber plug, and the core rod is assembled inside the outer sleeve and The rubber plug is in sealing contact with the inner wall surface of the outer sleeve, and the joint is assembled to the assembled end of the outer sleeve. The syringe of the reusable boosting device is provided with a liquid storage device and the liquid storage device and the boosting device are arranged in two parts to be assembled to constitute a whole syringe, and the liquid sucked into the syringe is only present in the elastic drug bag and In the space formed by the connection joint, the liquid does not come into contact with the outer casing and the core rod of the booster device, so that after the injection, the boosting device is not contaminated and can continue to be used. The invention can realize the repeated use of the boosting device, can not only save the use cost of the patient but also can greatly save the raw materials and meet the environmental protection requirements.

A syringe for using the liquid storage device for the above-mentioned reusable boosting device, which is provided with a connection joint and an elastic sachet, the elastic sachet being fitted into the inner cavity of the joint, the elastic sachet and The connecting joint inner cavity is sealedly connected. The liquid storage device cooperates with the boosting device, and after the injection is completed, the new liquid storage device and the needle can be reused by assembling the original liquid lifting device and the needle, and the re-use of the boosting device can be realized, which can save not only the saving. The patient's cost of use and the ability to save raw materials and meet environmental requirements.

DRAWINGS The invention is further described with reference to the drawings, but the contents of the drawings do not constitute any limitation of the invention.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic view showing the configuration of a syringe embodiment 1 of a reusable boosting device of the present invention.

Fig. 2 is a schematic view showing the construction of a syringe embodiment 3 of a reusable assisting device of the present invention.

Figure 3 is a schematic view of the exploded structure of Figure 2.

Figure 4 is a cross-sectional view taken along line "A-A" of Figure 2;

Fig. 5 is a view showing the discarded portion and the retaining portion of the syringe of the reusable boosting device of the present invention.

In Figure 1, Figure 2, Figure 3, Figure 4 and Figure 5, there are:

Liquid storage device 100,

Connecting joint 110, internal thread 111,

Elastic sachet 120, capsule wall 121, capsule 122,

Booster device 200,

Jacket 210, mounting end 211, open end 212, external thread 213,

The core rod 220, the rubber plug 221, the buckle position 222, the buckle tooth 223,

Mount 231,

Injection buckle 232, buckle end 2321, tail end 2322,

Elastic member 233,

Core positioning card 240, card slot 2411

Injection needle 300,

Needle sleeve 400,

The disposable portion of the reusable booster device after use of the syringe 70,

The reusable portion of the syringe of the reusable booster device is used after use. detailed description

The invention is further described in conjunction with the following examples.

Example 1.

A syringe for reusable boosting device, as shown in Fig. 1, is provided with a liquid storage device 100, a boosting device 200, and an injection needle 300 and a needle holder 400. The liquid storage device 100 is for accommodating the inhaled liquid, and the boosting device 200 suctions or injects the liquid under an external force.

The liquid storage device 100 is provided with a connection joint 110 and an elastic sachet 120, and the elastic sachet 120 is fitted in the inner cavity of the joint 110, and the elastic sachet 120 is sealingly connected to the inner cavity of the joint 110. Specifically, the elastic bladder 120 and the lumen of the connector 110 can be ultrasonically welded or otherwise sealed.

The elastic sachet 120 is provided with a capsule wall 121 and a capsule chamber 122. The capsule wall 121 is fixedly coupled to the capsule chamber 122, and the capsule wall 121 is sealingly connected to the wall surface of the lumen of the joint 110. The wall of the capsule 121 and the wall of the lumen of the connector 110 can be welded by ultrasonic welding or by other means.

When the liquid is drawn in through the connector 110, since the elastic bag 120 is sealingly coupled to the connector 110, the liquid will be stored in the space formed by the elastic bag 120 and the connector 110 without contacting other components of the syringe. As the amount of inhaled liquid increases, the liquid will open the elastic bladder 120.

The boosting device 200 is provided with a jacket 210 and a core rod 220. One end of the core rod 220 is provided with a rubber stopper 221, and the core rod 220 is fitted inside the outer casing 210 and the rubber stopper 221 is in sealing contact with the inner wall surface of the outer casing 210. When the core rod 220 is subjected to an external force to slide in the outer casing 210, the rubber stopper 221 of the core rod 220 is sealed with the outer wall surface to form a negative pressure or positive pressure chamber for liquid suction or injection.

The joint 110 is fitted to the fitting end 211 of the outer casing 210. Specifically, the outer wall surface of the fitting end 211 of the outer sleeve 210 is provided with an external thread 213, and the inner wall surface of the connecting joint 110 is provided with an internal thread 111, and the outer sleeve 210 is screwedly coupled with the connecting joint 110.

It should be noted that the manner of assembling the connecting joint 110 and the outer sleeve 210 is not limited to the threaded connection in the embodiment, and may be set as a snap connection or other connection depending on the situation. The syringe of the reusable boosting device works as follows: When the external force pulls the core rod 220, the core rod 220 moves away from the fitting end 21 1 of the outer casing 210, and the inner casing 210 is under negative pressure. The external liquid will be drawn into the elastic pouch 120 through the joint 1 10, and the elastic pouch 120 will be distracted as the inhaled liquid increases. Since the elastic sachet 120 is sealingly connected to the connecting joint 110, the liquid medicine can only exist in the space formed by the elastic sachet 120 and the connecting joint 110, and does not enter the outer casing 210, so the liquid does not contaminate the outer casing 210 and the core. Rod 220. When the external force pushes the core rod 220 to inject, the pressure in the outer sleeve 210 increases, pushing the elastic sachet 120 to squeeze the liquid to inject the liquid through the joint 1 10, and the liquid is only present in the liquid storage device 100. The liquid does not contaminate the outer sleeve 210 and the core rod 220. During the process of aspirating and injecting the liquid, the entire boosting device 200 is only present in the liquid storage device 100, and does not contact the boosting device 200. Therefore, when the injection is completed, only the liquid storage device 100 is replaced and the liquid is injected. The needle 300 can be used, and the original booster device 200 can still be used safely.

Since the boosting device 200 can be reused many times, the economic pressure of the patient can be reduced and the raw materials can be greatly saved, and the environmental protection requirements are met.

In addition, the syringe of the reusable boosting device of the present embodiment has a simple structure, low cost, and safe use.

Example 2.

A syringe for reusable boosting device has the same structure as that of Embodiment 1, except that the capsule wall 121 and the capsule chamber 122 are provided as an integrally formed structure, which has the advantages of convenient processing, low cost, and good sealing effect.

Example 3.

The syringe of the reusable boosting device has the same structure as the first embodiment or the second embodiment, and has the following technical features: as shown in FIG. 2, FIG. 3 and FIG. 4, the boosting device 200 is further provided. There is a one-way locking mechanism, and the one-way locking mechanism is provided with a mounting seat 231, an injection buckle 232 and an elastic member 233.

The mounting seat 231 is fixedly disposed on the outer wall surface of the open end 212 of the outer casing 210, and the injection buckle 232 is attached. The activity is set in the mount 231. Specifically, the injection buckle 232 is assembled to the mount 231 by a shaft movement. It should be noted that the injection buckle 232 can be assembled to the mount 231 in different mounting manners, and is not limited to the manner in the embodiment.

The injection buckle 232 is provided with a buckle end 2321 for snap fitting the core rod 220, and the other end of the injection buckle 232 is a tail end 2322, and the two ends of the elastic member 233 are respectively opposite to the tail end 2322 and the outer wall surface of the outer sleeve 210. Abut. The resilient member 233 can be configured as a spring or other resilient component.

The core rod 220 is further provided with a buckle 222, and the buckle end 2321 is fastened and assembled to the buckle position 222.

The buckle position 222 is set as a strip body, and the strip body is provided with a buckle tooth 223, and the buckle end 2321 is fastened to the buckle tooth 223.

In addition, the booster device 200 is further provided with a core rod positioning card 240, the core rod positioning card 240 is sleeved on the core rod 220 and the core rod positioning card 240 is fitted to the open end 212 of the outer sleeve 210. The core positioning card 240 is provided with a card slot 241, and the strip is matched with the card slot 241.

The buckle 222 of the core rod 220 is snap-fitted to the buckle end 2321, and both ends of the elastic member 233 abut against the tail end 2322 and the outer wall surface of the outer sleeve 210. When the liquid suction is performed, the external force pulsing core rod 220 moves toward the open end 212 away from the outer casing 210. At this time, the buckle end 2321 of the buckle position 222 is subjected to the thrust of the core rod 220 due to the external force. The elastic member 233 is compressed, the tail end 2322 of the injection buckle 232 is slightly displaced toward the mounting seat 231, and the core rod 220 can be moved. As the core rod 220 moves, the interior of the boosting device 200 is in a negative pressure state. The liquid enters the inside of the liquid storage device 100 through the injection needle 300. After the liquid is sucked, since the buckle end 2321 is snap-connected to the buckle position 222, and the positioning function of the core rod positioning card 240 is applied, the core rod 200 will not move in the original position. At this time, when the external force pushes the core rod 210 toward the mounting end 21 1 of the outer casing 210, the buckle 222 of the push rod 220 is fastened to the buckle end 2321 by the action of the tail end 2322 and the elastic member 233. The core rod 220 cannot be moved into the outer casing 210. If an injection is required, the core rod 220 is simply rotated so that the buckle 222 of the core rod 220 is offset from the buckle end 2321 for liquid injection.

Through the one-way locking mechanism, liquid suction or injection can be precisely controlled, which is safer. Sin.

The syringe of the reusable boosting device has the entire boosting device 200 in the process of aspirating and injecting the liquid, and the liquid is only present in the liquid storage device 100 without contacting the boosting device 200. Therefore, after the injection is completed, the remaining portion 60 of the syringe of the reusable boosting device is retained, and the discarded portion 70 of the syringe of the reusable boosting device is discarded, as shown in FIG. 5, that is, as long as the original The liquid storage device 100, the injection needle 300 portion, and the needle sleeve 400 are partially discarded, and the original boosting device 200 portion is retained, and the unused liquid storage device 100, the injection needle 300 portion, and the needle sleeve 400 are reassembled into the original The booster unit 200 can be reused and the newly assembled syringe will not cause cross-contamination due to the previous injection.

In addition, the syringe of the reusable boosting device of the present embodiment has a simple structure, low cost, and safe use. Example 4.

A liquid storage device for use in the syringe of any of the above-described embodiments 1 to 3 reusable boosting device. As shown in FIG. 1 to FIG. 4, the liquid storage device 100 is provided with a connection joint 110 and an elastic sachet 120. The elastic sachet 120 is assembled in the inner cavity of the joint 110, and the elastic sachet 120 is sealedly connected to the inner joint of the joint 110. .

The elastic sachet 120 is provided with a capsule wall 121 and a capsule chamber 122. The capsule wall 121 is fixedly coupled to the capsule chamber 122, and the capsule wall 121 is sealingly connected to the wall surface of the lumen of the joint 110.

The liquid storage device 100 cooperates with the boosting device 200, so that after the injection, the liquid storage device 100 and the injection needle 300 can be replaced, and the boosting device 200 can be repeatedly used to form a new syringe for use, which can save the patient's The cost of use and the ability to save raw materials and meet environmental requirements.

Example 5. A liquid storage device, the other structure is the same as that of the first embodiment, except that the capsule wall 121 and the capsule cavity 122 are provided as an integrally formed structure, which has the advantages of convenient processing, low cost and good sealing effect.

It should be noted that the above embodiments are only for explaining the technical solutions of the present invention and are not intended to limit the scope of the present invention. Although the present invention is described in detail with reference to the preferred embodiments, those skilled in the art The technical solutions of the present invention are modified or equivalently substituted without departing from the spirit and scope of the technical solutions of the present invention.

Claims

Claim

A syringe for reusable booster device, characterized in that: a liquid storage device and a boosting device are provided;

The liquid storage device is provided with a connecting joint and an elastic sachet, the elastic sachet is assembled in the inner cavity of the connecting joint, and the elastic sachet is sealingly connected with the inner cavity of the connecting joint;

The boosting device is provided with a jacket and a core rod, one end of the core rod is provided with a rubber plug, the core rod is fitted inside the outer sleeve and the rubber plug is in sealing contact with the inner wall surface of the outer sleeve, A joint is fitted to the assembled end of the outer casing.

2. The syringe of the reusable boosting device according to claim 1, wherein: the elastic sachet is provided with a capsule wall and a capsule cavity, and the capsule wall is fixedly connected to the capsule cavity, the capsule The wall is sealingly connected to the wall of the inner cavity of the connecting joint.

3. The syringe of the reusable boosting device according to claim 2, wherein: the capsule wall and the capsule chamber are disposed in an integrally formed structure.

4. The syringe of the reusable booster device of claim 2, wherein:

The boosting device is further provided with a one-way locking mechanism, and the one-way locking mechanism is provided with a mounting seat, an injection buckle and an elastic member;

The syringe of the reusable boosting device according to claim 4, wherein: the buckle is provided as a strip body, the strip body is provided with a buckle tooth, and the buckle end is The buckle buckle is connected.

6. The syringe of the reusable boosting device according to claim 5, wherein: the boosting device is further provided with a core rod positioning card, and the core rod positioning card is sleeved on the core rod and The core rod positioning card is mounted to the open end of the outer casing.

7. The syringe of the reusable booster device according to claim 6, wherein: the core rod positioning card is provided with a card slot, and the strip body is matched with the card slot.

8. The syringe of the reusable boosting device according to claim 1, wherein: an outer wall surface of the fitting end of the outer sleeve is provided with an external thread, and an inner wall surface of the joint is provided with an internal thread, the outer sleeve The connection joint is screwed to the joint.

A liquid storage device for a reusable booster device according to any one of claims 1 to 8, characterized in that: a connection joint and an elastic drug bag are provided, and the elastic drug bag is assembled The inner cavity of the connecting joint, the elastic drug bag is sealingly connected with the inner cavity of the connecting joint.

The liquid storage device according to claim 9, wherein: the elastic drug bag is provided with a capsule wall and a capsule cavity, the capsule wall is fixedly connected to the capsule cavity, and the capsule wall is connected with the capsule The wall of the joint cavity is sealed.