CN213789344U - Disposable plastic syringe with filtering structure - Google Patents

Abstract

The utility model belongs to the field of syringes, in particular to a disposable plastic syringe with a filtering structure, which comprises a syringe and a needle seat fixedly arranged at the left end of the syringe, the left end of the needle seat is detachably connected with a connecting cylinder, the inside of the connecting cylinder is fixedly connected with a filtering membrane, the right side of the outer wall of the connecting cylinder is fixedly connected with a sleeve, the needle seat is clamped and arranged inside the sleeve, the sleeve at the right side of the outer wall of the connecting cylinder is clamped on the left end of the needle seat, clamping blocks at the bottoms of six elastic sheets inside the sleeve are respectively clamped inside corresponding clamping grooves on the outer wall of the needle seat, so as to facilitate the installation and fixation of the sleeve, when in use, liquid medicine can firstly pass through the filtering membrane, the filtering membrane can effectively filter the medicine, the cleanliness of the extracted medicine is ensured, and the connecting cylinder and the filtering membrane can be completely taken down by pulling the connecting cylinder outwards after the filtering is finished, the risk of infection of the patient can be reduced, and the safety is improved.

Description

Disposable plastic syringe with filtering structure

Technical Field

The utility model relates to the field of syringes, in particular to a disposable plastic syringe with a filtering structure.

Background

The injector is a common medical appliance, mainly uses a needle to extract or inject gas or liquid, is an epoch-making revolution in the field of medical appliances and is widely applied clinically, generally comprises a needle cylinder, a needle and a piston core rod, and is disposable for safety in clinical use.

Present syringe is when using, comes the direct suction of medicine in the medicine storage container such as medicine bottle to the cylinder inside through the syringe needle, then directly injects the human body again or dispenses the use, but remains the foreign matter that does not clear up the completion in the container easily, and some medicine bottles are the glass material moreover, have partial piece when opening the medicine bottle and fall into in the medicine bottle, then directly taken out, reduced the cleanliness factor of medicine, reduced the security.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a disposable plastic syringe with filtration to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a disposable plastic injector with a filtering structure comprises a needle cylinder and a needle seat fixedly arranged at the left end of the needle cylinder, wherein the left end of the needle seat is detachably connected with a connecting cylinder, a filtering membrane is fixedly connected inside the connecting cylinder, the right side of the outer wall of the connecting cylinder is fixedly connected with a sleeve, and the needle seat is clamped and arranged inside the sleeve; six mounting grooves that are the symmetric distribution are seted up to the sleeve inner wall, the needle file lateral wall seted up six with the corresponding draw-in groove of mounting groove, the inside fixed connection shell fragment of mounting groove, shell fragment bottom fixedly connected with fixture block, the fixture block is installed inside the draw-in groove.

As a further aspect of the present invention: the outer side wall of the needle seat is provided with two sliding grooves which are symmetrically distributed.

As a further aspect of the present invention: the sleeve inner wall fixedly connected with two are the slider of symmetric distribution, two the slider is slidable mounting respectively two inside the spout.

As a further aspect of the present invention: the sliding groove is located at the middle position of the outer side wall of the needle seat, and the sliding block is located at the middle position of the inner wall of the sleeve.

As a further aspect of the present invention: the clamping blocks and the clamping grooves are of semicircular structures.

As a further aspect of the present invention: the fixture block is made of rubber, and the bottom end of the fixture block is located outside the mounting groove.

As a further aspect of the present invention: the connecting cylinder right side end fixedly connected with seals the cushion, seal the cushion opposite side with needle file left side end contacts.

Compared with the prior art, the beneficial effects of the utility model are that:

the connecting cylinder with the filtering membrane inside is arranged at the left end of the needle seat on the middle needle cylinder, the sleeve at the right side of the outer wall of the connecting cylinder is clamped at the left end of the needle seat, the clamping blocks at the bottoms of six elastic sheets in the sleeve are respectively clamped in the corresponding clamping grooves on the outer wall of the needle seat, so that the installation and fixation work of the sleeve are convenient to carry out, the firmness after the sleeve and the connecting cylinder are installed and the stability during use are improved, when in use, liquid medicine can firstly pass through the filtering membrane, the filtering membrane can effectively filter the medicine, particles or foreign matters in the liquid medicine are filtered out, the cleanliness of the extracted medicine is ensured, the connecting cylinder adopts a detachable design and is disposable, after the filtering is finished, the connecting cylinder and the filtering membrane can be completely taken down by pulling the connecting cylinder outwards, then the needle is sleeved for injection, so that the risk of infection of a patient can be reduced, and the safety is improved.

Drawings

FIG. 1 is a schematic view of a disposable plastic syringe having a filter structure;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is a side view of the connector barrel of a disposable plastic syringe having a filter structure;

fig. 4 is a schematic view showing the structure of the resilient tab and the latch of the disposable plastic syringe with a filter structure.

In the figure: 1. a needle cylinder; 11. a needle seat; 111. a card slot; 112. a chute; 2. a connecting cylinder; 21. a filtration membrane; 22. a sleeve; 221. mounting grooves; 222. a slider; 23. sealing the rubber gasket; 3. a spring plate; 31. and (7) clamping blocks.

Detailed Description

Please refer to fig. 1-4, in the embodiment of the utility model, a disposable plastic syringe with filtration, including 1 and the needle file 11 of fixed mounting at 1 left side end of cylinder, 11 left side ends of needle file can be dismantled and be connected with connecting cylinder 2, 2 inside fixedly connected with filtration membrane 21 of connecting cylinder, 2 outer wall right side fixedly connected with sleeves 22 of connecting cylinder, 11 block of needle file is installed inside sleeves 22, six mounting grooves 221 that are the symmetric distribution are seted up to sleeve 22 inner wall, 11 lateral walls of needle file have seted up six draw-in grooves 111 corresponding with mounting groove 221, the inside fixed connection shell fragment 3 of mounting groove 221, 3 bottom fixedly connected with fixture blocks 31 of shell fragment, fixture block 31 block is installed inside draw-in groove 111.

In fig. 1: syringe 1 and the 11 combinations of needle file of left side end form the syringe, and 11 left side ends of needle file can be dismantled and be connected with connecting cylinder 2, and the doctor is holding connecting cylinder 2 and is held the sleeve 22 card on 2 outer walls of connecting cylinder right sides to the left side of needle file 11 during the use and serve, then press connecting cylinder 2 and make sleeve 22 block into in the needle file 11 outside completely, accomplish connecting cylinder 2 and 11 connection work of needle file, easy operation, simple to operate.

In fig. 1, 2, 3 and 4: six symmetrically distributed mounting grooves 221 are formed in the inner wall of the sleeve 22, a clip block 31 is connected to the inside of each mounting groove 221 through a clip 3, when the sleeve 22 is clamped into the left end of the needle holder 11, the needle holder 11 can simultaneously push against the six clip blocks 31 outwards, the clip blocks 31 can compress the clip 3 after being stressed and move towards the inside of the mounting groove 221, after the sleeve 22 is placed on the left end of the needle holder 11, the six clip blocks 31 push against the outer side wall of the needle holder 11 under the resilience action of the corresponding clip 3, then the connecting cylinder 2 is pushed to enable the sleeve 22 to move on the outer side of the needle holder 11, at the moment, the clip blocks 31 can move along the outer side wall of the needle holder 11, six clip grooves 111 corresponding to the mounting grooves 221 are formed in the outer side wall of the needle holder 11, therefore, the six clip grooves 111 respectively correspond to the six clip blocks 31, after the clip blocks 31 move to the corresponding clip grooves 111, the clip blocks 31 are pushed into the clip grooves 111 under the action of the clip blocks 3, the sleeve 22 is fixed outside the needle base 11 by the mutual matching between the clamping groove 111 and the clamping block 31, so that the connecting cylinder 2 is fixed on the needle base 11, the fixing work of the sleeve 22 is convenient to carry out, the firmness after the sleeve 22 is installed is improved, the firmness of the connection between the connecting cylinder 2 and the needle base 11 can be improved, the normal use of the device is ensured, when in use, the left end of the connecting cylinder 2 is inserted into the liquid medicine for liquid pumping work, the connecting cylinder 2 is internally fixed by the filtering membrane 21, the liquid medicine can be filtered through the filtering membrane 21 after entering the connecting cylinder 2, particles or foreign matters in the liquid medicine are filtered out, the filtered liquid medicine passes through the connecting cylinder 2 and the needle base 11 and enters the needle cylinder 1, after the liquid medicine is extracted, the connecting cylinder 2 can be taken down from the needle base 11 by pulling the connecting cylinder 2 outwards, then the needle head is put on the needle base 11 to carry out the injection work of a patient, easy operation, conveniently carry out the dismantlement work of connecting cylinder 2, connecting cylinder 2 adopts the design of removable branch, carry out disposable, can take off connecting cylinder 2 after the filtration of carrying out the liquid medicine and carry out injection work again, can effectually filter the medicine, guarantee the cleanliness factor of the medicine that draws, can take off connecting cylinder 2 and filtration membrane 21 after the filtration work is accomplished, the risk that the patient infects can be reduced, the security has been improved, fixture block 31 is semi-circular structure with draw-in groove 111, fixture block 31 is the rubber material, and the bottom of fixture block 31 is located the mounting groove 221 outsidely, make fixture block 31 in the in-process that shell fragment 3 kick-backs and the shrink business turn over draw-in groove 111 that can be smooth, the smoothness when having improved connecting cylinder 2 installation and dismantlement, guarantee the normal use of device.

In fig. 1 and 3: two chutes 112 that are symmetrically distributed are seted up to needle file 11 lateral wall, sleeve 22 inner wall fixedly connected with two sliders 222 that are symmetrically distributed, two sliders 222 are respectively slidable mounting inside two chutes 112, when putting sleeve 22 on needle file 11, put into two chutes 112 on the needle file 11 with two sliders 222 on the sleeve 22 inner wall inside, then promote connecting cylinder 2 and make sleeve 22 remove in the needle file 11 outside, through the mutually supporting between slider 222 and chute 112, can lead sleeve 22, make sleeve 22 keep rectilinear movement to the state, stability when having improved sleeve 22 and installing, chute 112 is located 11 lateral wall intermediate position department of needle file, slider 222 is located sleeve 22 inner wall intermediate position department, can not hinder the normal work of fixture block 31, guarantee the normal use of device.

In fig. 1 and 3: 2 right side end fixedly connected with of connecting cylinder has sealed cushion 23, and the sealed cushion 23 opposite side contacts with 11 left sides of needle file mutually, and the back is in the same place in connecting cylinder 2 and the connection of needle file 11, and the sealed cushion 23 of 2 right sides of connecting cylinder end presss from both sides between connecting cylinder 2 and needle file 11, and sealed cushion 23 can improve the leakproofness before connecting cylinder 2 and the needle file 11, can prevent the condition that the liquid medicine spills, reduces extravagantly.

The utility model discloses a theory of operation is: when in use, the sleeve 22 is sleeved on the needle base 11, then the connecting cylinder 2 is pushed to ensure that the sleeve 22 is completely clamped on the needle base 11, so as to complete the connection work of the connecting cylinder 2 and the needle base 11, the sleeve 22 is completely clamped on the needle base 11, the clamping blocks 31 at the bottoms of six elastic sheets 3 in the sleeve 22 are respectively clamped in the corresponding clamping grooves 111 on the outer wall of the needle base 11, the sleeve 22 and the connecting cylinder 2 are fixed, the installation is convenient, the firmness after the connecting cylinder 2 is installed and the stability in use can be improved, then the connecting cylinder 2 is inserted into liquid medicine for liquid extraction, the filtering membrane 21 can effectively filter out particles or foreign matters in the liquid medicine, the cleanliness of the extracted medicine is ensured, the connecting cylinder 2 is pulled outwards after the filtration is completed, the connecting cylinder 2 and the filtering membrane 21 are completely taken down, then the needle head is sleeved for injection, so as to reduce the risk of infection of a patient, the safety is improved.

The above-mentioned, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (7)

1. A disposable plastic syringe with a filtering structure comprises a needle cylinder (1) and a needle seat (11) fixedly installed at the left end of the needle cylinder (1), and is characterized in that the left end of the needle seat (11) is detachably connected with a connecting cylinder (2), a filtering membrane (21) is fixedly connected inside the connecting cylinder (2), a sleeve (22) is fixedly connected to the right side of the outer wall of the connecting cylinder (2), and the needle seat (11) is installed inside the sleeve (22) in a clamping manner;

six mounting grooves (221) that are the symmetric distribution are seted up to sleeve (22) inner wall, needle file (11) lateral wall seted up six with mounting groove (221) corresponding draw-in groove (111), the inside fixed connection shell fragment (3) of mounting groove (221), shell fragment (3) bottom fixedly connected with fixture block (31), fixture block (31) block is installed inside draw-in groove (111).

2. The disposable plastic syringe with filtering structure as claimed in claim 1, wherein the outer side wall of the needle holder (11) is provided with two symmetrically distributed sliding slots (112).

3. The disposable plastic syringe with filtering structure as claimed in claim 2, wherein two symmetrically distributed sliding blocks (222) are fixedly connected to the inner wall of the sleeve (22), and the two sliding blocks (222) are respectively slidably mounted inside the two sliding grooves (112).

4. A disposable plastic syringe with filtering structure according to claim 3, characterized in that said sliding groove (112) is located at the middle position of the outer side wall of said needle holder (11), and said sliding block (222) is located at the middle position of the inner wall of said sleeve (22).

5. The disposable plastic syringe with filtering structure as claimed in claim 1, wherein said latch (31) and said latch groove (111) are of a semicircular structure.

6. The disposable plastic syringe with filtering structure as claimed in claim 1, wherein said latch (31) is made of rubber, and the bottom end of said latch (31) is located outside said mounting groove (221).

7. The disposable plastic syringe with filtering structure as claimed in claim 1, wherein a sealing rubber pad (23) is fixedly connected to the right end of the connecting cylinder (2), and the other side of the sealing rubber pad (23) is in contact with the left end of the needle seat (11).

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