CN114177428A

CN114177428A - A needle and syringe

Info

Publication number: CN114177428A
Application number: CN202111677445.XA
Authority: CN
Inventors: 段宜人
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-03-15

Abstract

The application provides a syringe needle and syringe relates to medical equipment technical field, and a syringe needle includes needle tubing and needle file, still includes the partition subassembly, and the partition subassembly separates the needle tubing for cavity and last cavity down, and the partition subassembly separates the needle file for injection chamber and backward flow chamber, and lower cavity and backward flow chamber are linked together, goes up the cavity and is linked together with the injection chamber, and the length of cavity is longer than the length of last cavity down, and injection chamber and needle file bottom opening intercommunication, a syringe include the plunger rod, still include as above a syringe needle, the needle file sets up in the plunger rod. In the process of penetrating into the skin, the lower chamber is firstly contacted with the skin of a patient, and at the moment, no tissue substitute such as hyaluronic acid, collagen and other fillers exist in the lower chamber, so that blood can enter the lower chamber, vascular embolism caused by the fact that the tissue substitute enters the blood vessel and subcutaneous extravasated blood of the patient are avoided, and the risks of tissue necrosis, blindness, stroke and even death caused by thrombus to the patient are reduced to the maximum extent.

Description

Needle head and syringe

Technical Field

The application relates to the technical field of medical equipment, in particular to a needle head and an injector.

Background

Cosmetic surgery, also known as reconstructive surgery or reconstructive surgery, is mainly used for treating wounds, diseases, such as skin, muscle and bone, congenital or acquired tissue or organ defects and deformities. The treatment includes repairing and reconstructing, transplanting various tissues with fonts by surgical methods, and repairing tissue defects or malformations caused by various reasons by adopting xenogeneic tissues, xenogeneic tissues or tissue substitutes so as to improve or restore physiological functions and appearances.

In the conventional micro plastic surgery, when the patient needs to be injected with hypoderm or periosteum, tissue substitutes to be injected, such as hyaluronic acid, collagen and the like, are usually injected into an injector, and then a needle is mounted on the injector, so that the hypoderm or periosteum injection can be performed on the patient, and the purpose of micro plastic surgery is achieved.

However, the inventor believes that the related art has the following defects that when a patient is injected with hypodermis or periosteum, the medical staff cannot accurately distinguish the position of a subcutaneous blood vessel, an injection needle can easily puncture the subcutaneous blood vessel, and when the injection needle is injected subcutaneously, subcutaneous blood stasis is caused, and even a tissue substitute enters the blood vessel to cause blood vessel embolism, so that the patient is injured secondarily.

Disclosure of Invention

In order to avoid causing secondary injury to a patient, the application provides a needle and a syringe.

On the one hand, the application provides a syringe needle, adopts following technical scheme:

the utility model provides a syringe needle, includes needle tubing and needle file, still includes the partition subassembly, the partition subassembly separates the needle tubing for cavity and last cavity down, the partition subassembly separates the needle file for injection chamber and backward flow chamber, cavity and backward flow chamber are linked together down, it is linked together to go up cavity and injection chamber, the length of cavity is longer than the length of last cavity down, injection chamber and needle file bottom opening intercommunication.

By adopting the technical scheme, in the actual use process, when the patient is injected with corium or periosteum, the needle tube is firstly contacted with the skin of the patient, the tip of the needle tube pierces the skin along with the further movement of the needle tube, the tip of the lower cavity is firstly contacted with the skin of the patient in the process of piercing the skin, and similarly, when the blood vessel is pierced, the lower cavity is also firstly contacted with the blood vessel, and at the moment, no tissue substitute such as hyaluronic acid, collagen and other fillers exist in the lower cavity, so that the blood outflow of the pierced blood vessel can be effectively led out, the tissue substitute is prevented from entering the blood vessel to cause blood vessel embolism and subcutaneous extravasated blood of the patient, the secondary injury to the patient is reduced to the maximum extent, and the practicability is remarkably improved.

Optionally, the separation assembly comprises an upper partition plate and a lower partition plate, the upper partition plate is arranged in the needle tube and divides the needle tube into a lower chamber and an upper chamber, the lower partition plate is arranged in the needle tube and divides the needle tube into a reflux chamber and an injection chamber, and the lower partition plate is fixedly connected with the upper partition plate.

By adopting the technical scheme, in the process of practical application of the needle head, the inner part of the needle tube is separated by the upper partition plate, the inner part of the needle seat is separated by the lower partition plate, two cavities which are not communicated with each other are formed in the needle tube and the needle seat, the lower cavity is communicated with the backflow cavity into a whole to form a cavity, the upper cavity is communicated with the injection cavity into a whole to form another cavity, the two cavities are not communicated with each other, so that vascular embolism caused by injecting a tissue substitute into a blood vessel can be effectively avoided, and the reliability of the device in the using process is improved.

Optionally, the lower partition plate is arc-shaped, and a convex surface of the lower partition plate faces the opening at the bottom of the needle seat.

Through adopting above-mentioned technical scheme, at the in-process of injection, the injection commodity circulation gets into in the syringe needle through the needle file, and at this in-process, through the baffle that the arc set up, is showing and is reducing frictional force and resistance between injection thing and the baffle, and then has made things convenient for medical personnel to inject the injection thing into patient's hypodermis or on the periosteum, has made things convenient for medical personnel's operation to a certain extent.

Optionally, the inner wall of the reflux cavity is provided with a through hole penetrating through the side wall of the needle seat.

Through adopting above-mentioned technical scheme, in the in-service use process of syringe needle, after the most advanced blood vessel of puncturing of syringe needle, cavity of resorption this moment is compared in the first step contact blood of cavity of resorption, and because the through-hole has balanced internal external atmospheric pressure, blood can flow into the backward flow intracavity through cavity of resorption, medical personnel can observe blood and ooze this moment, in time stop advancing this moment, and extract the syringe needle, ooze the blood position to the patient and carry out the operation of stanching, through seting up the through-hole, the position of staff observation syringe needle has further made things convenient for, thereby the holistic practicality of device has been improved.

Optionally, a connecting pipe is arranged on the outer wall of the needle seat and communicated with the through hole.

Through adopting above-mentioned technical scheme, at the practical application in-process of syringe needle, after the most advanced blood puncture vessel of syringe needle, blood flows into the backward flow intracavity through lower cavity, can discharge through the connecting pipe afterwards, after the syringe needle finishes using, also can absorb the remaining blood of backward flow intracavity through the connecting pipe, has improved the practicality of device.

On the other hand, the technical scheme is that the injector provided by the application adopts the following technical scheme:

a syringe comprises a piston core rod and the needle head, wherein the needle seat is arranged on the piston core rod.

By adopting the technical scheme, when the patient is injected subcutaneously, the object to be injected is injected into the piston core rod, then the needle head is installed on the piston core rod, the patient can be injected subcutaneously, in the injection process, if the blood vessel is punctured, the blood flows into the backflow cavity through the lower cavity, if the blood vessel is not punctured, the medical personnel can push the object to be injected into the injection cavity in the needle seat through the piston core rod, and then the patient is injected subcutaneously or epiperiosteally through the upper cavity.

Optionally, the piston core rod comprises a sleeve and a piston rod slidably disposed in the sleeve, and a sleeve ring is disposed at one end of the piston rod away from the sleeve.

Through adopting above-mentioned technical scheme, at the in-process that uses the syringe, can drive the injection chamber that the injection got into in the needle file through pressing down the piston rod, when the direction motion of keeping away from the needle file of needs drive piston rod orientation, the user can penetrate the lantern ring with the thumb in, drives the lantern ring motion through the thumb and realizes driving the purpose that the piston rod moved in order to reach the pumpback, has made things convenient for the staff to drive the piston rod motion, has improved the practicality and the security of device.

Optionally, the collar is rotatably connected to the piston rod, and the piston rod is provided with a limiting member for limiting a deflection angle of the collar.

Through adopting above-mentioned technical scheme, after accomplishing the use of syringe, drive the lantern ring motion, make the lantern ring deflect towards the piston rod, and then inject the position of the lantern ring through the locating part to reduced the shared space of syringe on the whole, made things convenient for the staff to carry and transport the syringe, improved the practicality of device.

Optionally, the limiting member is a clamping block, the clamping block is arranged on the piston rod, and a clamping groove for clamping the lantern ring is formed in the clamping block.

Through adopting above-mentioned technical scheme, when needs are injectd the position of the lantern ring, the staff drives the lantern ring and deflects, makes in lantern ring card goes into the draw-in groove, can injectd the position of the lantern ring on the piston rod, and easy operation is convenient, simple structure, and the cost is comparatively cheap, has better practicality and application scope.

Optionally, the piston rod is provided with an elastic member, and the elastic member is used for driving the lantern ring to keep a vertical state.

Through adopting above-mentioned technical scheme, in the use of syringe, after removing the position of locating part to the lantern ring and injecing, the lantern ring has the motion trend that keeps vertical state promptly under the effect of elastic component to make things convenient for staff's operation to a certain extent, avoided staff at the in-process of operation, need constantly correct the position of lantern ring, improved staff's operating efficiency.

In summary, the present application includes at least one of the following beneficial technical effects:

1. in the process of puncturing the skin, the lower chamber is firstly contacted with the skin of a patient, and similarly, when the blood vessel is punctured, the lower chamber is also firstly contacted with the blood vessel, and at the moment, no tissue substitute such as hyaluronic acid, collagen and other fillers exist in the lower chamber, so that the occurrence of blood vessel embolism and subcutaneous extravasated blood of the patient caused by the fact that the tissue substitute enters the blood vessel can be effectively avoided, the secondary damage to the patient is reduced to the maximum extent, and the practicability is remarkably improved;

2. the baffle plate arranged in an arc shape obviously reduces the friction force and the resistance between the injection and the baffle plate, thereby facilitating the medical staff to inject the injection into the subcutaneous space of the patient and facilitating the operation of the medical staff to a certain extent;

3. the blood flows into the backflow cavity through the lower cavity and then can be discharged through the connecting pipe, and after the needle head is used, the residual blood in the backflow cavity can be absorbed through the connecting pipe, so that the practicability of the device is improved;

4. when a patient is injected subcutaneously, an object to be injected is injected into the piston core bar, then the needle head is installed on the piston core bar, and then the injection can be performed on the patient under the dermis or on the periosteum;

5. the purpose of driving the piston rod to move is realized by driving the lantern ring to move by the thumb, so that the worker can conveniently drive the piston rod to move, and the practicability of the device is improved;

6. the position of the lantern ring is limited through the limiting part, so that the occupied space of the injector is reduced on the whole, the injector is convenient to carry and transport by workers, and the practicability of the device is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic view of the overall structure of a needle according to an embodiment of the present application;

FIG. 2 is a partial cross-sectional view of a needle of an embodiment of the present application;

FIG. 3 is a schematic diagram of the overall structure of the syringe of the embodiment of the present application;

fig. 4 is a schematic structural diagram of a collar according to an embodiment of the present application.

Icon: 1. a needle tube; 11. a needle seat; 12. installing a sleeve; 2. a partition assembly; 21. an upper partition plate; 22. a lower partition plate; 3. a lower chamber; 31. an upper chamber; 32. a reflux cavity; 33. an injection cavity; 34. a through hole; 35. a connecting pipe; 4. a piston core bar; 41. a sleeve; 42. a piston rod; 5. a collar; 6. a mounting seat; 61. installing a shaft; 7. a limiting member; 71. a card slot; 8. an elastic member.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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 invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the embodiments of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are usually placed in when used, the orientations or positional relationships are only used for convenience of describing the present invention and simplifying the description, but the terms do not indicate or imply that the devices or elements indicated must have specific orientations, be constructed in specific orientations, and operate, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not require that the components be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the embodiments of the present invention, "a plurality" represents at least 2.

In the description of the embodiments of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The present application is described in further detail below with reference to figures 1-4.

In one aspect, embodiments of the present application disclose a needle.

Referring to fig. 1 and 2, the needle comprises a needle tube 1, a needle seat 11, a mounting sleeve 12 and a separation component 2. The needle tube 1 is installed on the needle seat 11, one end of the needle seat 11 far away from the needle tube 1 is installed on the installation sleeve 12, and the needle tube 1, the needle seat 11 and the installation sleeve 12 are communicated with each other. The needle tube 1 is divided into a lower chamber 3 and an upper chamber 31 by the separating assembly 2, the needle seat 11 is divided into an injection cavity 33 and a backflow cavity 32 by the separating assembly 2, the lower chamber 3 is communicated with the backflow cavity 32, the upper chamber 31 is communicated with the injection cavity 33, the length of the lower chamber 3 is longer than that of the upper chamber 31, and the injection cavity 33 is communicated with the bottom opening of the needle seat 11.

Referring to fig. 2, the partition assembly 2 includes an upper partition 21 and a lower partition 22, the upper partition 21 is disposed in the needle tube 1 and divides the needle tube 1 into a lower chamber 3 and an upper chamber 31, the lower partition 22 is disposed in the needle hub 11 and divides the needle hub 11 into a reflux chamber 32 and an injection chamber 33, and the lower partition 22 is fixedly connected with the upper partition 21.

In the practical application process of the needle, the interior of the needle tube 1 is separated by the upper partition plate 21, the interior of the needle seat 11 is separated by the lower partition plate 22, so that two cavities which are not communicated with each other are formed in the needle tube 1 and the interior of the needle seat 11, the lower cavity 3 is communicated with the reflux cavity 32 into a whole to form a cavity, the upper cavity 31 is communicated with the injection cavity 33 into a whole to form another cavity, and the two cavities are not communicated with each other, so that the tissue substitute can be effectively prevented from being injected into a blood vessel to cause vascular embolism, and the reliability of the device in the using process is improved.

Referring to fig. 2, the lower partition 22 is provided in an arc shape, and a convex surface of the lower partition 22 is provided toward the bottom opening of the needle holder 11.

In the process of injection, the injection flows through the needle seat 11 and enters the needle tube 1, and in the process, the risk of injecting the injection into the blood vessel is remarkably reduced through the baffle plate arranged in an arc shape, so that the injection is conveniently injected into subcutaneous tissues of a patient by medical personnel, and the operation of the medical personnel is facilitated to a certain extent.

Referring to fig. 2, the inner wall of the reflux cavity 32 is provided with a through hole 34 penetrating through the side wall of the needle holder 11. In the in-service use process at the syringe needle, after the tip of syringe needle punctures the blood vessel, cavity 3 is compared in the earlier step contact blood of last cavity 31 this moment down, and because through-hole 34 has balanced internal external atmospheric pressure, blood can flow into backward flow chamber 32 through cavity 3 down in, medical personnel can observe blood and ooze this moment, in time stop advancing this moment, and extract the syringe needle, ooze the blood position to the patient and carry out the operation of stanching, through seting up through-hole 34, the position of staff's observation syringe needle has further been made things convenient for, thereby the holistic practicality of device has been improved.

Referring to fig. 2, a connection pipe 35 is provided on an outer wall of the needle holder 11, and the connection pipe 35 communicates with the through hole 34.

In the practical application process of syringe needle, after the tip of syringe needle punctures the blood vessel, blood flows into backward flow chamber 32 through cavity 3 down in, can discharge through connecting pipe 35 afterwards, after the syringe needle finishes using, also can absorb remaining blood in backward flow chamber 32 through connecting pipe 35, has improved the practicality and the security of device.

The implementation principle of a needle head in the embodiment of the application is as follows:

in the actual use process, when the injection is performed on the hypodermis or the periosteum of a patient, the needle tube 1 is firstly contacted with the skin of the patient, along with the further movement of the needle tube 1, the tip end of the needle tube 1 is penetrated into the skin, the lower chamber 3 is firstly contacted with the skin of the patient in the process of penetrating the skin, and similarly, when the blood vessel is penetrated, the lower chamber 3 is also firstly contacted with the blood vessel, and at the moment, no filler such as hyaluronic acid, collagen and the like exists in the lower chamber 3, so that the blood vessel embolism caused by the fact that the tissue substitute enters the blood vessel and the blood stasis under the skin of the patient can be effectively avoided, the secondary injury to the patient is reduced to the maximum extent, and the practicability is remarkably improved.

In another aspect, an embodiment of the present application discloses a syringe.

Referring to fig. 3, the syringe comprises a piston core rod 4 and the needle head, wherein the needle seat 11 is arranged on the piston core rod 4.

Referring to fig. 3 and 4, the piston core rod 4 comprises a sleeve 41 and a piston rod 42 slidably disposed in the sleeve 41, and a collar 5 is disposed at an end of the piston rod 42 away from the sleeve 41.

In the process of using the syringe, can drive the injection thing through pressing piston rod 42 and get into injection chamber 33 in the needle file 11, when the direction motion of needle file 11 is kept away from to needs drive piston rod 42 orientation, the user can penetrate the lantern ring 5 with the thumb in, drive the purpose that the motion of lantern ring 5 realized driving piston rod 42 motion through the thumb, made things convenient for the staff to drive piston rod 42 motion, improved the practicality of device.

Referring to fig. 4, a mounting seat 6 is fixedly arranged at one end of the piston rod 42 away from the needle seat 11, a mounting shaft 61 is hinged on the mounting seat 6, and two ends of the lantern ring 5 are fixedly connected with the mounting shaft 61.

Referring to fig. 4, a limiting member 7 is disposed on the piston rod 42, and the limiting member 7 is used to limit a deflection angle of the collar 5, as an embodiment of the present application, the limiting member 7 is a fixture block, the fixture block is fixedly disposed on the piston rod 42, a fixture groove 71 for the collar 5 to be inserted is disposed on the fixture block, a top opening of the fixture groove 71 is greater than a width of the collar 5, and a bottom width of the fixture groove 71 is smaller than the width of the collar 5. Therefore, the lantern ring 5 can be clamped in the clamping groove 71, and the purpose of limiting the position of the lantern ring 5 is achieved.

After the use of accomplishing the syringe, drive the motion of the lantern ring 5, make the lantern ring 5 deflect towards piston rod 42, go into draw-in groove 71 with lantern ring 5 card to prescribe a limit to the position of the lantern ring 5, thereby reduced the shared space of syringe on the whole, made things convenient for the staff to carry and transport the syringe, improved the practicality of device.

Referring to fig. 4, the piston rod 42 is provided with an elastic member 8, and the elastic member 8 is used for driving the collar 5 to maintain the vertical state. As an embodiment of the present application, the elastic member 8 is provided as a torsion spring. The torsional spring is sleeved on the mounting shaft 61, one end of the torsional spring is fixedly connected with the mounting shaft 61, and the other end of the torsional spring is fixedly connected with the side wall of the mounting seat 6.

In the use of syringe, after removing the position of locating part 7 to lantern ring 5 and injecing, lantern ring 5 has the motion trend that keeps vertical state promptly under the effect of elastic component 8 to make things convenient for staff's operation to a certain extent, avoided staff at the in-process of operation, need constantly correct the position of lantern ring 5, improved staff's operating efficiency.

The implementation principle of the injector in the embodiment of the application is as follows:

when carrying out hypodermic injection to the patient, will treat in the injection thing injects piston core bar 4, install the syringe needle to piston core bar 4 afterwards, can carry out hypodermic injection to the patient, at the in-process of injection, if puncture the blood vessel, blood flows into backward flow chamber 32 through cavity 3 down in, if for puncturing the blood vessel, medical personnel can pass through piston core bar 4 and promote in the injection thing gets into the injection chamber 33 in needle file 11, and then carry out hypodermic injection to the patient through last cavity 31.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a syringe needle, includes needle tubing and needle file, its characterized in that: the needle tube is divided into a lower cavity and an upper cavity by the dividing assembly, the needle seat is divided into an injection cavity and a reflux cavity by the dividing assembly, the lower cavity is communicated with the reflux cavity, the upper cavity is communicated with the injection cavity, the length of the lower cavity is longer than that of the upper cavity, and the injection cavity is communicated with an opening at the bottom of the needle seat.

2. A needle according to claim 1, wherein: the partition assembly comprises an upper partition plate and a lower partition plate, the upper partition plate is arranged in the needle tube and divides the needle tube into a lower cavity and an upper cavity, and the lower partition plate is arranged in the needle seat and divides the needle seat into a reflux cavity and an injection cavity.

3. A needle according to claim 2, wherein: the inner wall of the reflux cavity is provided with a through hole which penetrates through the side wall of the needle seat.

4. A needle according to claim 3, wherein: the outer wall of the needle seat is provided with a connecting pipe which is communicated with the through hole.

5. A syringe comprising a plunger rod, characterized in that: a needle according to any of claims 1 to 4, further comprising a needle hub disposed on the plunger stem.

6. A syringe according to claim 5, wherein: the piston core rod comprises a sleeve and a piston rod arranged in the sleeve in a sliding mode, and a sleeve ring is arranged at one end, far away from the sleeve, of the piston rod.

7. A syringe according to claim 6, wherein: the lantern ring is connected with the piston rod in a rotating mode, a limiting piece is arranged on the piston rod, and the limiting piece is used for limiting the deflection angle of the lantern ring.

8. A syringe according to claim 7, wherein: the limiting part is arranged as a clamping block, the clamping block is arranged on the piston rod, and a clamping groove for clamping the lantern ring is formed in the clamping block.

9. A syringe according to claim 8, wherein: the piston rod is provided with an elastic piece, and the elastic piece is used for driving the lantern ring to keep a vertical state.