CN111012980A

CN111012980A - Structure is taken off in shutoff of medical syringe needle

Info

Publication number: CN111012980A
Application number: CN202010077845.6A
Authority: CN
Inventors: 谷昌德
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-02-01
Filing date: 2020-02-01
Publication date: 2020-04-17

Abstract

The invention relates to the technical field of medical instruments, and mainly solves the technical problems that: how to prevent the operator from being stabbed when packing and transporting the waste needle. The invention relates to a medical syringe needle plugging and taking-down structure which comprises a recovery tube, a storage tube and a feeding piece; a bayonet is arranged at one end of the recovery tube and is formed by encircling a plurality of elastic sheets, and the bayonet is used for inserting the needle head of the injector into the recovery tube and is clamped with the step on the injector; the storage pipe is used for storing the flexible plugging piece; the feeding piece is used for feeding the flexible plugging piece in the material storage pipe to the inserting position in the recovery pipe when moving to the first position, and plugging the needle head outlet; and opening the needle outlet when moved to the second position; the inserting position is configured to be a position where the needle tip of the needle head is inserted into the flexible blocking piece when the step card is inserted into the bayonet. The medical syringe needle plugging and taking-down structure can prevent operators from being stabbed when packing and transporting the waste needle, and improves the safety of the operators.

Description

Structure is taken off in shutoff of medical syringe needle

Technical Field

The invention relates to the technical field of medical instruments, in particular to a structure for plugging and taking down a needle head of a medical injector.

Background

As shown in fig. 1, the syringe 100 is one of commonly used medical articles, the syringe 100 includes a syringe 1 and a needle 2, the needle 2 includes a pintle 21 and a needle 22 fixed on the pintle 21, the needle 2 is inserted on the nipple of the syringe 1 through the pintle 21, and an annular step 201 is formed therebetween. The syringe 100 may inject a medicine into the body through the needle tip of the needle 2, or suck a liquid substance, etc. After the syringe 100 is used, the liquid medicine remains on the needle 2, so that the used needle 2 cannot be used continuously in order to avoid bacterial infection, and the needle 2 needs to be removed for uniform treatment. Now, generally, the medical staff manually takes off the needle 2, so the needle 2 may stick to the hand of the medical staff, which causes a safety hazard.

In order to facilitate the medical staff to safely remove the needle 2 from the syringe 100, as shown in fig. 2, patent No. CN204450405U discloses a needle plug removal structure for a medical syringe, which includes a separation circular plate 1 ' and a container 2 ', the separation circular plate 1 ' is fastened at the opening of the container 2 ', a through hole 4 ' is formed on the separation circular plate 1 ', a separation cover 5 ' is formed on the surface of the edge of the through hole 4 ' through a hinge 8 ', and a clamping groove 9 ' is formed on the separation cover 5 '. In use, the needle 2 of a used syringe 100 is first inserted into the container 2 'via the perforation 4'; then the separation cover 5 'is rotated to enable the separation cover 5' to be clamped with the step 201 on the injector 100; the barrel 1 is then pulled outwards with force, separating the barrel 1 from the needle 2, the separated needle 2 falling into the container 2'. Wherein, this structure is taken off in shutoff of medical syringe needle can assist medical personnel to take off syringe needle 2 from cylinder 1, and medical personnel's hand need not contact with syringe needle 2 to the risk of being stabbed when having avoided taking off syringe needle 2.

However, since the needles 2 are sharp objects, after the needles 2 in the container 2' are filled, the operator is still required to pack the waste needles 2 and send the waste needles 2 to a corresponding medical waste disposal facility for disposal, and since the needle points of the waste needles 2 are not protected, the operator is still at risk of being punctured when packing the waste needles 2, so that the problem is urgently solved.

Disclosure of Invention

In view of the above, the present invention provides a medical syringe needle plugging and removing structure, which mainly solves the technical problems that: how to prevent the operator from being stabbed when packing and transporting the waste needle.

In order to achieve the purpose, the invention mainly provides the following technical scheme:

the embodiment of the invention provides a medical syringe needle plugging and taking-down structure, which comprises a recovery pipe, a storage pipe and a feeding piece, wherein the recovery pipe is arranged on the recovery pipe; a bayonet is arranged at one end of the recovery tube and is formed by surrounding a plurality of elastic sheets, and the bayonet is used for inserting a needle head of an injector into the recovery tube and is clamped with a step on the injector; the storage pipe is used for storing the flexible plugging piece; the other end of the recovery pipe is provided with a needle head outlet, and the feeding piece is used for feeding the flexible plugging piece in the storage pipe to the inserting position in the recovery pipe when moving to the first position and plugging the needle head outlet; and opening the needle outlet when moved to the second position; wherein the plugging position is configured to be a position where the needle tip of the needle is inserted into the flexible plugging piece when the step card is plugged into the bayonet; the side surface of the storage pipe is provided with a first feeding hole, the side surface of the recovery pipe is provided with a second feeding hole, and openings of the first feeding hole and the second feeding hole are opposite; the feeding piece is used for feeding the flexible plugging piece in the storage pipe to the splicing position through the first feeding hole and the second feeding hole and is in sliding fit with the first feeding hole and/or the second feeding hole; the recovery tube has opposing first and second sidewalls; the second feeding hole is formed in the first side wall, and the feeding piece is used for abutting against the second side wall through one side close to the material bearing step when moving to the first position; the medical syringe needle plugging and taking-down structure further comprises a base, wherein one end of the storage pipe is sealed by the base, and the sealing surface of the base forms a part of the side wall of the first feeding hole.

By means of the technical scheme, the medical syringe needle plugging and taking-down structure at least has the following beneficial effects:

1. because the flexible plugging piece plugs the needle point of the waste needle, the operation personnel can be prevented from being stabbed when the waste needle is packed and transported, and the safety of the operation personnel is improved.

2. The whole operation process of the medical syringe needle plugging and removing structure is relatively simple, when the feeding piece feeds the flexible plugging piece into the recovery pipe, medical personnel only need one plugging and pulling action, namely the needle is inserted into the bayonet, and then the needle cylinder is pulled out, so that the purposes of removing the needle and plugging the needle point of the needle can be realized.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.

Drawings

FIG. 1 is a schematic diagram of a prior art syringe;

FIG. 2 is a schematic view of a prior art needle block removal structure for a medical injector;

FIG. 3 is a schematic structural view of a needle stopper removing structure of a medical injector according to an embodiment of the present invention;

fig. 4 is a schematic view of the needle block removal structure of the medical syringe of fig. 3 from another perspective.

FIG. 5 is a side view of the syringe inserted into the medical syringe needle block removal structure of FIG. 3;

FIG. 6 is a cross-sectional view taken along line A-A of the feeder member of FIG. 5 in a first position;

FIG. 7 is a cross-sectional view taken along line A-A of the injector device of FIG. 5 with the shuttle in a second position and with the barrel of the injector device withdrawn;

reference numerals: 1. a needle cylinder; 2. a needle head; 3. a recovery pipe; 4. a spring plate; 5. a storage pipe; 6. a base; 7. a feeding member; 21. a pintle; 22. a needle; 31. an end cap; 32. a recovery pipe body; 33. a square tube; 71. a feeding plate; 72. a base; 73. a handle; 100. an injector; 200. a flexible blocking member; 201. a step; 301. a bayonet; 302. a needle outlet; 303. a second feed hole; 501. a first feed hole; 701. a material bearing step.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly. In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.

As shown in fig. 3 and 4, a needle stopper removing structure for a medical syringe according to an embodiment of the present invention includes a recovery tube 3, and a bayonet 301 is provided at one end of the recovery tube 3. The bayonet 301 is surrounded by a plurality of spring pieces 4. Specifically, the plurality of elastic sheets 4 are disposed at one end of the recovery pipe 3 and are distributed in a circular shape, and free ends of the plurality of elastic sheets 4 are matched to enclose the bayonet 301. Preferably, each elastic piece 4 may be integrally formed at the one end of the recovery pipe 3. In order not to affect the resilience of each elastic sheet 4 after being stressed, it is more preferable that a space is provided between two adjacent elastic sheets 4.

As shown in fig. 5, needle 2 of syringe 100 can be inserted into recovery tube 3 through bayonet 301, and is engaged with bayonet 301 through step 201. As shown in fig. 6, in the process of inserting the pintle 21 of the needle head 2 into the bayonet 301, the outer diameter of the pintle 21 is larger than the inner diameter of the bayonet 301, so that the pintle 21 presses the bayonet 301 to bend each elastic sheet 4 downward until the pintle 21 passes through the bayonet 301, and then each elastic sheet 4 recovers to deform and is inserted into the step 201 of the syringe 100 to clamp the bayonet 301 with the step 201. As shown in fig. 7, the needle 2 can be separated from the cylinder 1 by pulling the cylinder 1 upward.

Compared with the prior art that the medical staff also needs to rotate the separation cover to clamp the step 201 on the injector 100, the technical scheme of the invention has simpler operation and saves the process of rotating the separation cover, and the medical staff only needs to insert the needle 2 into the recovery tube 3 through the bayonet 301 and then upwards pull and pull the needle cylinder 1, thus realizing the purpose of taking the needle 2 off the needle cylinder 1.

As shown in fig. 3, the needle stopper removing structure of the medical injector of the present invention further comprises a storage tube 5 and a feeding member 7. The storage pipe 5 is used for storing a flexible block piece 200, which flexible block piece 200 may be of flexible rubber or the like. The other end of the recovery pipe 3 is provided with a needle outlet 302 (shown in fig. 4). The feeder 7 is movable to a first position and a second position. As shown in fig. 6, the feeder member 7 is adapted to feed the flexible blocking member 200 in the storage tube 5 to the plugging position in the recovery tube 3 and block the needle outlet 302 when moved to the first position. Wherein the plugging position is configured to be a position where the needle tip of the needle 2 is inserted into the flexible blocking piece 200 when the step 201 is snapped into the bayonet 301. As shown in fig. 7, the feeder member 7 is adapted to open the needle outlet 302 when moved to the second position,

in the above example, particularly in operation, as shown in fig. 6, the feeding member 7 is firstly moved to the first position, so that the feeding member 7 feeds the flexible blocking member 200 in the storage tube 5 to the insertion position in the recovery tube 3, and then the medical staff inserts the needle 2 of the syringe 100 into the recovery tube 3 through the bayonet 301, in the process, the needle 2 is gradually inserted into the flexible blocking member 200 through the needle point until the bayonet 301 is engaged with the step 201 on the syringe 100, wherein the feeding member 7 can provide stable support for the needle point to be inserted into the flexible blocking member 200 as the feeding member 7 blocks the needle outlet 302. As shown in fig. 7, the medical staff then pulls the needle cylinder 1 upward, so that the needle 2 is separated from the needle cylinder 1 and left in the recovery tube 3; the feeder member 7 is then moved to the second position and the feeder member 7 opens the needle outlet 302 so that the needle 2 having the flexible closure member 200 closed off can be removed from the needle outlet 302. Preferably, a waste needle recovery box may be provided below the needle outlet 302 to facilitate recovery of the needle 2 blocked by the flexible blocking member 200.

In the above example, the flexible blocking piece 200 blocks the needle point of the waste needle 2, so that the operator can be prevented from being punctured when packing and transporting the waste needle 2, and the safety of the operator is improved. In addition, whole operation process is fairly simple, and after in the delivery member 7 sent flexible shutoff piece 200 to recovery tube 3, medical personnel only needed a plug action, inserted syringe needle 2 through bayonet 301 promptly, then pulled out syringe 1, can realize taking off syringe needle 2, and carry out the purpose of shutoff with the needle point of syringe needle 2.

After long-term use, the elastic sheet 4 is often easily damaged by being squeezed, so it is preferable that, as shown in fig. 3, the one end of the recovery tube 3 has an end cap 31, and the end cap 31 is detachably connected with the recovery tube main body 32, such as by screwing or clipping. The bayonet 301 and the spring pieces 4 are arranged on the end cover 31. Preferably, each elastic sheet 4 is integrally formed on the end cover 31, such as integrally injection-molded. So when shell fragment 4 takes place to damage for example when the fracture, can dismantle end cover 31 and get off and change, need not like this to take off the structure with medical syringe needle shutoff and wholly scrap, prolonged the medical syringe needle shutoff and taken off the life of structure.

In order to facilitate the feeding member 7 to convey the flexible blocking member 200, preferably, as shown in fig. 6, a first feeding hole 501 may be formed in a side surface of the storage pipe 5, a second feeding hole 303 may be formed in a side surface of the recycling pipe 3, and openings of the first feeding hole 501 and the second feeding hole 303 are opposite to each other. Preferably, the side wall of the recovery pipe 3 is attached to the side wall of the storage pipe 5, so that the first feeding hole 501 and the second feeding hole 303 can be seamlessly butted. The feeding member 7 is used for feeding the flexible plugging member 200 in the storage pipe 5 to the plugging position through the first feeding hole 501 and the second feeding hole 303, and is used for being in sliding fit with the first feeding hole 501 and/or the second feeding hole 303. At least one of the first feeding hole 501 and the second feeding hole 303 can guide the movement of the feeding member 7, and the movement precision of the feeding member 7 is improved.

As shown in fig. 6, the aforementioned feeder member 7 may include a base 72 and a feeder plate 71 protruding from a side surface of the base 72. A material receiving step 701 is formed between the feeding plate 71 and the base 72. The feeder 7 is used to feed the flexible closures 200 through the receiving step 701. The cross-sectional shape of holding material step 701 is L shape, and the in-process of feeding member 7 at the flexible shutoff piece 200 of carrying, the perpendicular limit of L shape can carry on spacingly to flexible shutoff piece 200, prevents that flexible shutoff piece 200 from taking place to rock and can not be sent the grafting position in the recovery tube 3 steadily. The feeding member 7 is further configured to support the flexible blocking member 200 above the inside of the storage tube 5 through the base 72 when moving to the first position, so as to receive the next flexible blocking member 200 through the receiving step 701 when waiting for the feeding member 7 to move to the second position.

As shown in fig. 6, the first feeding hole 501 may penetrate through two opposite sides of the storage tube 5, so that the medical staff can conveniently pull the feeding member 7 from an opening of the first feeding hole 501, which is away from the second feeding hole 303. Preferably, a handle 73 may be disposed on a side of the feeding member 7 away from the material receiving step 701, so as to facilitate the medical staff to operate and move the feeding member 7.

As shown in fig. 6, the aforementioned recovery pipe 3 has opposite first and second side walls. The second feeding hole 303 may be disposed on the first sidewall, and the feeding member 7 is configured to abut against the second sidewall through a side close to the material holding step 701 when moving to the first position, so as to close the needle outlet 302. Wherein, the second lateral wall can insert the degree of depth backstop spacing in recovery tube 3 as locating part to pay-off piece 7, makes medical personnel know promptly that pay-off piece 7 has moved to the first position when receiving the unable removal of conflict when removing pay-off piece 7, makes things convenient for medical personnel to judge whether to have moved to the first position pay-off piece 7.

Preferably, the recovery tube 3 and the storage tube 5 are transparent tubes, so that medical staff can observe the internal working process when operating the medical syringe needle plugging and removing structure of the invention, and the flexible plugging member 200 can be conveniently fed and the waste needle 2 can be conveniently and timely removed.

As shown in fig. 6, the medical syringe needle block removal structure of the present invention may further include a base 6, the base 6 covering one end of the storage tube 5, and the covering surface constituting a portion of the sidewall of the first feeding hole 501. Preferably, as shown in fig. 3, the one end of the storage pipe 5 may be provided with a connecting plate, and the connecting plate and the base 6 may be connected by screws, so as to fix the base 6 and the storage pipe 5. Compared with the hole wall with a smaller area on the side wall of the storage pipe 5 of the first feeding hole 501, the base 6 can cover the whole opening of the storage pipe 5, so that the area of the cover surface of the base is relatively larger, and the cover surface with a larger area can provide more stable support for the movement of the feeding member 7.

The base 6 can be provided with a through screw through hole, and a screw can pass through the screw through hole to fix the base 6 on an external part such as a waste needle collecting box, so that the medical syringe needle plugging and taking-down structure is convenient to fix, wherein the stable medical syringe needle plugging and taking-down structure is more convenient for medical staff to take down the needle 2.

As shown in fig. 3, when one end of the recovery pipe 3 has an end cap 31 and the end cap 31 is used to be screwed with the recovery pipe main body 32, the other end of the recovery pipe 3 may have a square cylinder, one end of which is detachably connected with the recovery pipe main body 32, such as a snap fit or a screw connection. As shown in fig. 6, the aforementioned needle outlet 302 is provided at the other end of the square barrel. The second feeding hole 303 is provided in the side of the square tube. So when feeding member 7 often takes out and inserts second pay-off hole 303 and lead to second pay-off hole 303 wearing and tearing and influence the transport of flexible shutoff piece 200, can pull down square section of thick bamboo from recovery tube 3 and change, and needn't scrap recovery tube 3 wholly to can prolong recovery tube 3's life. Wherein, aforementioned storage pipe 5 is squarely, and its lateral wall laminates mutually with the lateral wall of a square section of thick bamboo, for other shapes such as a round tube, is squarely to be provided with and does benefit to first porthole 501 and the seamless butt joint between the second porthole 303 to make things convenient for taking out of pay-off piece 7 to insert.

As shown in fig. 3, the square cylinder and the storage pipe 5 may be provided with connecting plates, and the connecting plates may be connected by bolts to fix the recovery pipe 3 and the storage pipe 5.

Here, it should be noted that: in the case of no conflict, a person skilled in the art may combine the related technical features in the above examples according to actual situations to achieve corresponding technical effects, and details of various combining situations are not described herein.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.

Claims

1. A structure for plugging and taking down a needle head of a medical injector is characterized by comprising a recovery tube (3), a storage tube (5) and a feeding piece (7);

a bayonet (301) is arranged at one end of the recovery tube (3), the bayonet (301) is formed by encircling a plurality of elastic sheets (4), and the bayonet (301) is used for enabling a needle head (2) of the syringe (100) to be inserted into the recovery tube (3) and clamped with a step (201) on the syringe (100);

the storage pipe (5) is used for storing the flexible plugging piece (200);

the other end of the recovery pipe (3) is provided with a needle outlet (302), and the feeding piece (7) is used for feeding the flexible plugging piece (200) in the storage pipe (5) to the insertion position in the recovery pipe (3) when moving to the first position and plugging the needle outlet (302); and opening the needle outlet (302) when moved to the second position; the inserting position is configured to be a position where the needle point of the needle head (2) is inserted into the flexible plugging piece (200) when the step (201) is clamped into the bayonet (301);

a first feeding hole (501) is formed in the side face of the storage pipe (5), a second feeding hole (303) is formed in the side face of the recovery pipe (3), and openings of the first feeding hole (501) and the second feeding hole (303) are opposite; the feeding piece (7) is used for feeding the flexible plugging piece (200) in the storage pipe (5) to the splicing position through the first feeding hole (501) and the second feeding hole (303), and is used for being in sliding fit with the first feeding hole (501) and/or the second feeding hole (303);

the recovery tube (3) has opposite first and second side walls; the second feeding hole (303) is formed in the first side wall, and the feeding piece (7) is used for abutting against the second side wall through one side close to the material bearing step (701) when moving to the first position;

the medical syringe needle plugging and removing structure further comprises a base (6), one end of the storage pipe (5) is sealed by the base (6), and the sealing surface forms one part of the side wall of the first feeding hole (501).