CN210673935U

CN210673935U - Syringe

Info

Publication number: CN210673935U
Application number: CN201920946865.5U
Authority: CN
Inventors: 邓晖
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-06-20
Filing date: 2019-06-20
Publication date: 2020-06-05
Anticipated expiration: 2029-06-20

Abstract

The utility model discloses an injector, which comprises a needle cylinder, wherein one end of the needle cylinder is connected with a nipple, and the other end is provided with a pressing plate (comprising a push rod, a first sleeve, a piston ring and a spring); the first sleeve of the sealed one end of cylinder central authorities establishes in the periphery side of push rod, and the push rod wears out the first telescopic one end sealing connection and has the push pedal, and the other end that the push rod is located first sleeve is provided with the spring at the bottom of first sleeve cover chamber in the cylinder, and the piston ring cover is established and is fixed in first telescopic periphery, sliding connection between piston ring and the cylinder inside wall. The utility model belongs to the technical field of the syringe, the utility model aims to solve the problem of mistake injection among the prior art. The technical effects achieved are as follows: the injector can automatically generate controllable negative pressure, so that fat cells are not damaged due to overlarge pressure in the liposuction operation, and the workload of an operator in the operation can be reduced; in daily injections, drugs that should not enter the blood are not injected into the blood, causing disabling events.

Description

Syringe

Technical Field

The embodiment of the utility model provides a relate to syringe technical field, concretely relates to syringe.

Background

The disposable syringe is widely applied clinically, can be used for preparation of medicinal preparations, medicine injection, blood drawing and the like, and is the reason, the medical safety problems caused by the syringe and improper use are inexhaustible every year, the medicines which are not allowed to be injected into blood vessels are not allowed to be mistakenly pumped into the blood vessels due to the fact that the medicines are not timely pumped back, for example, local anesthetics, botulinum toxins and hyaluronic acid can cause poisoning, allergy or disability and death when being injected into the blood vessels clinically, and the autologous fat transplantation in the beauty treatment world is not favored, so that the syringe capable of automatically performing negative pressure is needed.

SUMMERY OF THE UTILITY MODEL

Therefore, the embodiment of the utility model provides an injector to solve the problem of excessive injection among the prior art.

In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:

according to a first aspect of embodiments of the present invention, an injector comprises a needle cylinder, one end of the needle cylinder is connected with a nipple, and the other end is provided with a pressing plate, and further comprises a push rod, a first sleeve, a piston ring and a spring; the first sleeve is sleeved on the outer peripheral side of the push rod, one end of the push rod penetrating through the first sleeve is connected with the push plate in a sealing mode, a spring is arranged between the other end of the push rod located in the first sleeve and the cavity bottom of the inner side cavity of the needle cylinder, the piston ring is sleeved and fixed on the outer peripheral side of the first sleeve, and the piston ring is connected with the inner side wall of the needle cylinder in a sliding mode.

Further, a scale groove for measuring the volume is provided on the outer side wall of the cylinder.

Furthermore, the device also comprises a telescopic pipe, wherein the telescopic pipe is sleeved on the outer peripheral side of the spring, one end of the telescopic pipe is abutted against the cavity bottom of the inner cavity of the needle cylinder, and the other end of the telescopic pipe is abutted against the piston ring.

Furthermore, the transition tube is further included, one end of the transition tube is connected with the cavity bottom of the inner cavity of the needle cylinder, the other end of the transition tube is connected with the nipple, and the spring is abutted against the annular surface at the joint of the transition tube and the nipple.

Furthermore, the needle cylinder also comprises a guide ring and a plurality of radial plates, wherein the guide ring is sleeved on the outer peripheral side of the first sleeve and is in sliding connection with the first sleeve, and the guide ring is connected with the inner side wall of the needle cylinder through the plurality of radial plates.

Further, a plurality of spokes are uniformly circumferentially arrayed around the axis of the guide ring on the outer peripheral side of the guide ring.

Furthermore, be provided with two first recesses on the pressure board, first recess is to pressing the sunken arc recess of pressure board inside, and two first recesses are about the plane of symmetry setting of cylinder.

Further, stripe-shaped or granular-shaped protrusions are arranged in the first grooves.

Furthermore, a second groove is formed in the push plate and is a spherical groove which is sunken towards the inner part of the push plate.

Further, stripe-shaped or granular-shaped protrusions are arranged in the second grooves.

Furthermore, the outer side wall of the nipple is provided with an external thread, and the nipple is connected with an injection needle through the thread.

Furthermore, the push rod device also comprises a second sleeve, the second sleeve is sleeved on the outer peripheral sides of the spring and the push plate of the push rod, and the second sleeve is connected with the first sleeve in a sliding mode.

The utility model has the advantages of as follows: through the utility model, the automatic negative pressure of the injector is realized, the fat cell damage caused by overlarge pressure is avoided, and the workload of the operator in the operation can be reduced; the negative pressure of the injector of the utility model is driven by the potential energy of the spring, the spring is added outside the core of the injector, the permeability of the wall of the injector tube and the stability of the needle tube core are increased, the change of the volume of the needle tube is displayed on the scale of the needle tube by calculation, and the relation between the tension of the spring and the negative pressure is adjusted to be optimal by calculation; the utility model can reduce the occurrence of malignant events in the beauty treatment field and reduce the occurrence of medical disputes and adverse events in clinic.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.

Fig. 1 is a structural diagram of an injector provided in embodiment 1 of the present invention.

Fig. 2 is a structural diagram of an injector provided in embodiment 2 of the present invention.

Fig. 3 is a structural diagram of an injector provided in embodiment 3 of the present invention.

Fig. 4 is a structural diagram of an injector provided in embodiment 4 of the present invention.

Fig. 5 is a top view of a syringe provided in embodiment 4 of the present invention.

Fig. 6 is a partial structural view of an injector provided in embodiment 5 of the present invention.

Fig. 7 is a structural diagram of an injector provided in embodiment 6 of the present invention.

In the figure: 1. push rod, 2, first sleeve, 3, piston ring, 4, syringe, 5, spring, 6, nipple, 7, telescopic tube, 8, guide ring, 9, radials, 10, transition tube, 11, first recess, 12, second recess, 13, second sleeve.

Detailed Description

The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

As shown in fig. 1, the injector in this embodiment includes a needle cylinder 4, one end of the needle cylinder 4 is connected with a nipple 6, both the needle cylinder 4 and the nipple 6 are circular tubes, wherein the tube diameter of the needle cylinder 4 is larger than that of the nipple 6, the nipple 6 is used for connecting an injection needle, the other end of the needle cylinder 4 is provided with a pressing plate, the pressing plate is used for holding a forefinger and a middle finger when the injector is used, and the injector further includes a push rod 1, a first sleeve 2, a piston ring 3 and a spring 5; the first sleeve 2 is sleeved on the periphery of the push rod 1, the first sleeve 2 is a circular tube, one end of the push rod 1 penetrating out of the first sleeve 2 is connected with a push plate in a sealing manner, the push plate is used for applying an acting force by pressing with a human thumb when using an injector, a spring 5 is arranged between the other end of the push rod 1 positioned in the first sleeve 2 and the cavity bottom of the inner cavity of the needle cylinder 4, one end of the spring 5 is fixed on the end surface of the push rod 1, the other end of the spring 5 is abutted against the cavity bottom of the inner cavity of the needle cylinder 4, the piston ring 3 is sleeved and fixed on the periphery of the first sleeve 2, the piston ring 3 is in sliding connection with the inner side wall of the needle cylinder 4, the piston ring 3 can be made of rubber and is fixed on the first sleeve 2 through interference fit, one end of the needle cylinder 4 is open and the other, the first sleeve 2 and the push rod 1 are of an integral structure, one open end of the push rod 1 is a cross piece, and the other end of the push rod and the first sleeve 2 are connected to the push plate together for better pushing the spring 5; the nipple 6 is screwed and the needle is screwed, and the scale on the outside of the syringe 4 is redesigned according to the actual liquid coefficient.

In a specific embodiment, a scale groove for measuring the volume is provided on the outer side wall of the cylinder 4, and a numerical value showing the volume is marked beside the scale groove.

The technical effect that this embodiment reaches does: through the embodiment, the automatic negative pressure of the injector is realized, fat cell damage caused by overlarge pressure is avoided, and the workload of an operator in an operation can be reduced; the negative pressure of the injector of the embodiment is driven by the potential energy of the spring 5, the spring 5 is added outside the core of the injector, the permeability of the wall of the injector tube and the stability of the needle tube core are increased, the change of the volume of the needle tube is displayed on the scale of the needle tube by calculation, and the relation between the tension of the spring 5 and the negative pressure is adjusted to be optimal by calculation; the application of the embodiment can reduce the occurrence of malignant events in the beauty parlor and reduce the occurrence of medical disputes and adverse events in clinic.

Example 2

As shown in fig. 2, the injector in this embodiment includes all the technical features of embodiment 1, and in addition, includes a telescopic tube 7, the telescopic tube 7 is sleeved on the outer periphery of the spring 5, one end of the telescopic tube 7 abuts against the cavity bottom of the inner cavity of the needle cylinder 4, and the other end of the telescopic tube 7 abuts against the piston ring 3.

The beneficial effects in this embodiment are: by arranging the telescopic pipe 7, the contact between the spring 5 and the injection liquid medicine is avoided, the corrosion of the liquid medicine to the spring 5 is reduced, and meanwhile, the telescopic safety and stability of the spring 5 are improved.

Example 3

As shown in fig. 3, the injector in this embodiment includes all the technical features of embodiment 1, and in addition, includes a transition tube 10, one end of the transition tube 10 is connected to the cavity bottom of the inner cavity of the needle cylinder 4, the other end of the transition tube 10 is connected to the nipple 6, and the spring 5 abuts against the torus at the connection of the transition tube 10 and the nipple 6, wherein the inner diameter of the needle cylinder 4 is larger than the inner diameter of the transition tube 10, the inner diameter of the transition tube 10 is larger than the inner diameter of the nipple 6, the inner side wall diameter of the transition tube 10 is larger than the outer diameter of the spring 5, and the outer diameter of the spring 5 is larger than the inner diameter of the nipple 6.

The beneficial effects in this embodiment are: through setting up transition pipe 10, reduced the waste of liquid medicine, still have certain length because spring 5 compresses completely, transition pipe 10 provides the holding position for this part length to the whole discharge of liquid medicine has been realized.

Example 4

As shown in fig. 4 and 5, the injector in this embodiment includes all the technical features of embodiment 1, in addition, the injector further includes a guide ring 8 and a plurality of webs 9, the guide ring 8 is sleeved on the outer peripheral side of the first sleeve 2 and is slidably connected with the outer peripheral side, and the guide ring 8 is connected with the inner side wall of the syringe 4 through the plurality of webs 9; a plurality of webs 9 are circumferentially arrayed uniformly around the axis of the guide ring 8 on the outer peripheral side of the guide ring 8, for example, the webs 9 may be 3, 4, and 5 or more.

The beneficial effects in this embodiment are: through setting up guide ring 8, improved the stability of push rod 1 in the use, improved liquid medicine exhaust degree of consistency.

Example 5

As shown in fig. 6, the syringe of this embodiment includes all the technical features of embodiment 1, and in addition, the pressing plate is provided with two first grooves 11, the first grooves 11 are arc-shaped grooves recessed toward the inside of the pressing plate, and the two first grooves 11 are symmetrically arranged with respect to the symmetry plane of the syringe 4; striped or granular protrusions are arranged in the first groove 11; a second groove 12 is formed in the push plate, and the second groove 12 is a spherical groove which is sunken towards the inner part of the push plate; striped or granular bulges are arranged in the second groove 12; the outer side wall of the nipple 6 is provided with an external thread, and the nipple 6 is connected with an injection needle head through the thread.

The beneficial effects in this embodiment are: through setting up first recess 11 and second recess 12, the slip of staff when having avoided using the syringe has increased the frictional force when gripping through set up stripe form or granular arch in first recess 11 and second recess 12, has reduced the malfunction that uses the syringe because of the smooth production of hand.

Example 6

As shown in fig. 7, the syringe in this embodiment includes all the technical features of embodiment 1, and in addition, includes a second sleeve 13, the second sleeve 13 is sleeved on the outer peripheral sides of the spring 5 and the push plate of the push rod 1, and the second sleeve 13 is slidably connected with the first sleeve 2.

The beneficial effects in this embodiment are: through the sliding connection of the first sleeve 2 and the second sleeve 13, the stability of the syringe in use is effectively enhanced, and the deflection of the spring 5 is reduced.

Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.

In the present specification, the terms "upper", "lower", "left", "right", "middle", and the like are used for the sake of clarity only, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof are also considered to be the scope of the present invention without substantial changes in the technical content.

Claims

1. An injector comprises a needle cylinder (4), one end of the needle cylinder (4) is connected with a nipple (6), the other end is provided with a pressing plate, and the injector is characterized by also comprising a push rod (1), a first sleeve (2), a piston ring (3) and a spring (5); first sleeve (2) cover is established the periphery side of push rod (1), push rod (1) is worn out the one end sealing connection of first sleeve (2) has the push pedal, push rod (1) is located the other end in first sleeve (2) with be provided with between the chamber bottom of the inboard cavity of cylinder (4) spring (5), piston ring (3) cover is established and is fixed the periphery side of first sleeve (2), piston ring (3) with sliding connection between cylinder (4) the inside wall.

2. An injector according to claim 1, characterized in that it further comprises a telescopic tube (7), said telescopic tube (7) is sleeved on the outer periphery of said spring (5), one end of said telescopic tube (7) is abutted on the bottom of the inner cavity of said needle cylinder (4), and the other end of said telescopic tube (7) is abutted on the piston ring (3).

3. An injector according to claim 1, characterized in that it also comprises a transition tube (10), one end of the transition tube (10) is connected with the cavity bottom of the inner cavity of the syringe (4), the other end of the transition tube (10) is connected with the nipple (6), and the spring (5) is abutted on the ring surface at the connection of the transition tube (10) and the nipple (6).

4. An injector according to claim 1, characterized in that, it also comprises a guide ring (8) and a plurality of spokes (9), said guide ring (8) is sleeved on the periphery side of said first sleeve (2) and is connected with it in sliding mode, said guide ring (8) is connected with the inner side wall of said syringe (4) through a plurality of spokes (9).

5. A syringe according to claim 4, characterised in that a plurality of said webs (9) are arranged in a uniform circumferential array around the axis of said guide ring (8) on the outer circumferential side of said guide ring (8).

6. An injector according to claim 1, characterized in that said pressing plate is provided with two first grooves (11), said first grooves (11) being arc-shaped grooves recessed towards the inside of said pressing plate, said two first grooves (11) being arranged symmetrically with respect to the plane of symmetry of said syringe (4).

7. Syringe according to claim 6, characterised in that the first groove (11) is provided with striated or granular protuberances.

8. An injector according to claim 1, characterized in that the push plate is provided with a second groove (12), the second groove (12) being a spherical groove which is concave towards the inside of the push plate.

9. A syringe according to claim 8, characterized in that striated or granular protrusions are provided in the second groove (12).

10. A syringe according to claim 1, further comprising a second sleeve (13), wherein the second sleeve (13) is sleeved on the outer periphery of the spring (5) and the push plate of the push rod (1), and the second sleeve (13) is slidably connected with the first sleeve (2).