CN213941486U

CN213941486U - Syringe needle and syringe containing same

Info

Publication number: CN213941486U
Application number: CN202022673467.6U
Authority: CN
Inventors: 李彩琼
Original assignee: Peoples Hospital of Deyang City
Current assignee: Peoples Hospital of Deyang City
Priority date: 2020-11-18
Filing date: 2020-11-18
Publication date: 2021-08-13
Anticipated expiration: 2030-11-18

Abstract

The utility model provides an injector needle and contain syringe of this syringe needle, including the puncture head, the needle tubing, direction swash plate and attach fitting, the puncture head is coniform or hemisphere form, the fixed sealing connection of top end port of needle tubing is on the bottom terminal surface of puncture head, and the external diameter of needle tubing equals with the external diameter of puncture head bottom terminal surface, the inside that the needle tubing is close to puncture head one side is equipped with the direction swash plate, the border corresponds fixed connection or integrated into one piece all around of direction swash plate on the interior cliff side of needle tubing, and can make and form an acute angle alpha between the plane at direction swash plate place and the radial cross-section in the needle tubing, the injection hole has been seted up on the periphery wall of needle tubing, and the projection of injection hole port department along the needle tubing radial direction can fall in the direction on the needle tubing, attach fitting sets up the bottom at the needle tubing. The problem of the attached piece in the syringe needle after the syringe needle is inserted into bottle lids such as ampoule is solved well.

Description

Syringe needle and syringe containing same

Technical Field

The utility model relates to the technical field of medical equipment, specifically a syringe needle and contain syringe of this syringe needle.

Background

At present, when a syringe needle commonly used in the market is used for extracting a medicament (liquid or powder) in a bottle such as an ampoule, the syringe needle is penetrated from the top of the bottle such as the ampoule, a tip pipe opening part of the syringe needle is often penetrated, and a small amount of tiny debris (mainly rubber plug impurities) falls off from a bottle cap of the bottle such as the ampoule and enters the bottle such as the ampoule after the bottle cap of the bottle such as the ampoule is penetrated by the syringe needle, and/or the small amount of tiny debris is attached to the tip pipe opening of the syringe needle.

At this time, the medicine in the bottle body such as the ampoule is extracted, and under the suction action of the syringe forming the negative pressure, the medicine in the bottle body such as the ampoule, the scraps falling off in the bottle body such as the ampoule and the scraps attached to the nozzle at the tip of the syringe needle are sucked into the syringe together, so that the particles difficult to dissolve are formed, and the particles difficult to dissolve have the effect of causing much larger side effect than the medicine after entering the human body, and in addition, the precipitation of the medicine itself has a certain influence on the treatment safety of the patient.

The research shows that the reason that the syringe needle penetrates into the bottle such as an ampoule and the like to cause the bottle cap of the bottle such as the ampoule and the like to generate scraps is as follows: firstly, the needle point of the traditional syringe needle is of an open structure, so that a part of bottle caps of ampoules and other bottle bodies are poked into a pipe orifice of the needle point of the syringe needle; secondly, the conventional syringe needle is punctured into the bottle caps in the ampoules and other bottles, and a regular puncture hole cannot be formed in the bottle caps, so that scraps are generated.

Disclosure of Invention

The utility model aims to provide a: to above-mentioned prior art not enough, provide one kind and guarantee the syringe and inject under the smooth and easy condition of liquid medicine, solve the syringe needle well and after inserting bottle lids such as ampoule, adhere to the syringe needle of piece problem in the syringe needle and contain the syringe of this syringe needle.

The utility model discloses a technical scheme be, on the one hand: a syringe needle comprises a puncture head, a needle tube, a guide sloping plate and a connecting joint, the puncture head is conical or semi-spherical, the top end port of the needle tube is fixedly and hermetically connected on the bottom end face of the puncture head, the outer diameter of the needle tube is equal to the outer diameter of the end face of the bottom end of the puncture head, a guide inclined plate is arranged inside the needle tube on one side close to the puncture head, the peripheral edge of the guide sloping plate is correspondingly and fixedly connected or integrally formed on the inner peripheral wall surface of the needle tube, an acute angle alpha can be formed between the plane of the guide sloping plate and the radial section in the needle tube, an injection hole is arranged on the outer peripheral wall of the needle tube, and the projection of the injection hole on the needle tube along the radial direction of the needle tube can fall in the guide inclined plate, and the connecting joint is arranged at the bottom port of the needle tube.

The inclined guide plate is made of a hard material.

Further, the direction swash plate orientation be provided with many direction recesses on the attach fitting's the surface, the width of every direction recess is followed liquid ejecting direction enlarges gradually in the syringe needle, and the degree of depth is followed liquid ejecting direction deepens gradually in the syringe needle.

The conical surface or the semi-spherical surface of the puncture head is provided with two mutually symmetrical cutting strips, one end part of each cutting strip is converged at the top point of the puncture head, the other end part of each cutting strip extends to the edge of the end surface of the bottom end of the puncture head, so that the two cutting strips can be positioned in the same plane, and the plane is perpendicular to the end surface of the bottom end of the puncture head.

An acute angle alpha formed between the plane where the inclined guide plate is located and the radial section in the needle tube is between 30 and 50 degrees.

The right edge of the end face of the bottom end of the puncture head is in point contact with the upper right of the guide inclined plate, and the injection hole is tangent to the end face of the bottom end of the puncture head.

The part of the needle tube between the end face of the bottom end of the puncture head and the inclined guide plate forms a sealed cavity, and the cavity is completely filled with copper.

On the other hand: an injector comprises a needle cylinder and a piston which are mutually matched, and further comprises the injector needle head, wherein the connecting joint is mutually matched with the needle cylinder.

Further, the piston is inserted from one end of the needle cylinder and is in sliding fit with the inner peripheral wall surface of the needle cylinder, the other end of the needle cylinder is provided with a connecting section matched with the connecting joint of the needle tube, and the connecting joint of the needle tube is screwed on the outer peripheral wall of the connecting section of the needle cylinder in a threaded connection mode.

The utility model has the advantages that:

1. the utility model discloses through the design of direction swash plate, guarantee that the syringe pushes under the smooth and easy condition of liquid medicine, through the position that changes the injection hole, solved the syringe needle well after inserting bottle lids such as ampoule, adhere to clastic problem in the syringe needle.

2. The utility model discloses in, through the direction swash plate orientation attach fitting is provided with many direction recesses on the surface, and the width of every direction recess is followed liquid release direction enlarges gradually in the syringe needle, and the degree of depth is followed the design that liquid release direction deepens gradually in the syringe needle strengthens the syringe and injects the water conservancy diversion performance of liquid medicine in-process to the liquid medicine.

3. The utility model discloses in, through be provided with the cutting strip of two mutual symmetries on the conical surface of puncture head or the half-round sphere, the one end tip of every cutting strip all collects the summit of puncture head, other end tip all extend to the edge of puncture head bottom terminal surface makes these two cutting strips can be in same plane, and this plane with the design of puncture head's bottom terminal surface mutually perpendicular. The problem of traditional syringe needle pierce the interior bottle lids such as ampoule, can not make the bottle lid form the neat entry of stinging is solved to avoided piercing the in-process of the bottle lid of bottles such as ampoule at the syringe needle, drop a small amount, small piece from the bottle lid of bottles such as ampoule and get into in the bottle such as ampoule.

Drawings

The present invention will be further described with reference to the accompanying drawings.

Fig. 1 is a sectional view of the present invention.

The reference numbers in the figures mean: 1-puncture head; 2-a needle tube; 21-injection hole; 3, a guide inclined plate; 4-connecting the joint.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

It should also be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

Referring to FIG. 1: a syringe needle comprises a puncture head 1, a needle tube 2, a guide sloping plate 3 and a connecting joint 4.

The puncture head 1 is conical or hemispherical, the top end port of the needle tube 2 is fixedly and hermetically connected to the bottom end face of the puncture head 1, the outer diameter of the needle tube 2 is equal to the outer diameter of the bottom end face of the puncture head 1, a guide inclined plate 3 is arranged (for example, welded) inside the needle tube 2 close to one side of the puncture head 1, the peripheral edge of the guide inclined plate 3 is correspondingly and fixedly connected (for example, welded) or integrally formed on the inner peripheral wall face of the needle tube 2, an acute angle alpha (achieving the effect of diversion) can be formed between the plane where the guide inclined plate 3 is located and the radial section in the needle tube 2, an injection hole 21 (at least one injection hole 21) is formed in the peripheral wall of the needle tube 2, and the projection of the injection hole 21 in the needle tube 2 along the radial direction of the needle tube 2 can fall in the guide inclined plate 3 (ensuring the effectiveness of guidance, further, the projection of the injection hole 21 on the needle tube 2 in the radial direction of the needle tube 2 is located in the upper half region of the inclined guide plate 3 [ see fig. 1, the upper half region of the inclined guide plate 3 is L ]), and the connecting joint 4 is arranged at the bottom end port of the needle tube 2. It can know, through the design of direction swash plate 3, guarantee that the syringe pushes the smooth and easy condition of liquid medicine, can be through changing the position of injection hole 21, solved the syringe needle well after inserting bottle lids such as ampoule, adhere to clastic problem in the syringe needle (because the syringe needle is in the in-process of stabbing, lean on puncture head 1 to pierce bottle lids such as ampoule, this injection hole of syringe needle in the process of stabbing does not have with bottle lids such as ampoule direct contact).

In order to enhance the flow guiding performance of the syringe for the liquid medicine in the process of injecting the liquid medicine. The inclined guide plate 3 is made of a hard material. Further, the direction swash plate 3 orientation be provided with many direction grooves on the surface of attach fitting 4, the width of every direction groove is followed liquid ejecting direction enlarges gradually in the syringe needle, and the degree of depth is followed liquid ejecting direction deepens gradually in the syringe needle.

The conical surface or the semi-spherical surface of the puncture head 1 are provided with two mutually symmetrical cutting strips, one end part of each cutting strip is collected at the top point of the puncture head 1, the other end part of each cutting strip extends to the edge of the end surface of the bottom end of the puncture head 1, and the cutting strips are penetrated to enable the two cutting strips to be positioned in the same plane, and the plane is perpendicular to the end surface of the bottom end of the puncture head 1. The smear metal side of smear metal strip (indicate with the one side of bottle lid contact in bottles such as ampoule) design has the smear metal sword, and the smear metal sword can become neat incision with bottle lid cuttings such as ampoule, has solved traditional syringe needle and has pierced the bottle lid in bottles such as ampoule, can not make the problem that the bottle lid formed neat thorn mouth to avoided piercing the in-process of the bottle lid of bottle such as ampoule at the syringe needle, drop a small amount, the problem in the bottle such as little piece entering ampoule from the bottle lid of bottle such as ampoule.

In addition, the design of the injection hole 21 can be combined with the cutting chip strip, so that the performance of the syringe needle is integrally enhanced, and the problems that a small amount of tiny chips fall off from the bottle caps of the bottles such as the ampoules and the like to enter the bottles such as the ampoules and the like and the chips are attached to the tip pipe orifice of the syringe needle in the process of penetrating the tip pipe orifice part of the syringe needle and after the bottle caps of the bottles such as the ampoules and the like are punctured by the syringe needle are completely solved.

Further, an acute angle alpha formed between the plane of the inclined guide plate 3 and the radial section in the needle tube 2 is between 30 and 50 degrees. For example, the acute angle α is 30 °, 40 °, 45 °, or 50 °.

Further, the right edge of the bottom end face of the puncture head 1 is in point contact with the upper right of the inclined guide plate 3, and the injection hole 21 (when there is one injection hole 21) is tangent to the bottom end face of the puncture head 1.

The part of the needle tube 2 between the end surface of the bottom end of the puncture head 1 and the inclined guide plate 3 forms a sealed cavity, and the cavity is completely filled with copper. Thereby changing the balance of the quality of the whole syringe needle and avoiding the problem that the syringe needle is easy to roll in the injection tray.

An injector comprises a needle cylinder and a piston which are mutually matched, and further comprises any one of the injector needles, wherein the connecting joint 4 is mutually matched with the needle cylinder.

Further, the piston is inserted from one end of the cylinder and is in sliding fit with the inner peripheral wall surface of the cylinder, the other end of the cylinder has a connecting section matched with the connecting joint 4 of the needle tube 2, and the connecting joint 4 of the needle tube 2 is screwed on the outer peripheral wall of the connecting section of the cylinder in a threaded connection manner.

The above detailed description is only for the purpose of illustration, but not for the purpose of limitation. Although the present invention has been described in detail with reference to the specific embodiments thereof, it will be understood by those skilled in the art that: the above-mentioned specific technical solutions can still be modified, or some technical features thereof can be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the present invention in its essence.

Claims

1. A syringe needle, characterized by: the syringe needle comprises a puncture head, a needle tube, a guide inclined plate and a connecting joint, the puncture head is conical or semi-spherical, the top end port of the needle tube is fixedly and hermetically connected on the bottom end face of the puncture head, the outer diameter of the needle tube is equal to the outer diameter of the end face of the bottom end of the puncture head, a guide inclined plate is arranged inside the needle tube on one side close to the puncture head, the peripheral edge of the guide sloping plate is correspondingly and fixedly connected or integrally formed on the inner peripheral wall surface of the needle tube, an acute angle alpha can be formed between the plane of the guide sloping plate and the radial section in the needle tube, an injection hole is arranged on the outer peripheral wall of the needle tube, and the projection of the injection hole on the needle tube along the radial direction of the needle tube can fall in the guide inclined plate, and the connecting joint is arranged at the bottom port of the needle tube.

2. The syringe needle of claim 1, wherein:

the inclined guide plate is made of a hard material.

3. Syringe needle according to claim 1 or 2, characterized in that:

the direction swash plate orientation be provided with many direction recesses on attach fitting's the surface, the width of every direction recess is followed liquid ejecting direction enlarges gradually in the syringe needle, and the degree of depth is followed liquid ejecting direction deepens gradually in the syringe needle.

4. The syringe needle of claim 1, wherein: the conical surface or the semi-spherical surface of the puncture head is provided with two mutually symmetrical cutting strips, one end part of each cutting strip is converged at the top point of the puncture head, the other end part of each cutting strip extends to the edge of the end surface of the bottom end of the puncture head, so that the two cutting strips can be positioned in the same plane, and the plane is perpendicular to the end surface of the bottom end of the puncture head.

5. The syringe needle of claim 1, wherein: an acute angle alpha formed between the plane where the inclined guide plate is located and the radial section in the needle tube is between 30 and 50 degrees.

6. The syringe needle of claim 1, wherein: the right edge of the end face of the bottom end of the puncture head is in point contact with the upper right of the guide inclined plate, and the injection hole is tangent to the end face of the bottom end of the puncture head.

7. The syringe needle of claim 1, wherein: the part of the needle tube between the end face of the bottom end of the puncture head and the inclined guide plate forms a sealed cavity, and the cavity is completely filled with copper.

8. An injector, comprising a cylinder and a piston which are mutually matched, characterized in that: the syringe needle of any one of claims 1 to 7, further comprising a connection fitting that is interfitted with the barrel.

9. The syringe of claim 8, wherein: the piston is inserted from one end of the needle cylinder and is in sliding fit with the inner peripheral wall surface of the needle cylinder, the other end of the needle cylinder is provided with a connecting section matched with the connecting joint of the needle tube, and the connecting joint of the needle tube is in threaded connection with the outer peripheral wall of the connecting section of the needle cylinder.