CN217245998U

CN217245998U - Mistake-proofing syringe

Info

Publication number: CN217245998U
Application number: CN202220725996.2U
Authority: CN
Inventors: 钱娇红
Original assignee: Ninghai First Hospital
Current assignee: Ninghai First Hospital
Priority date: 2022-03-30
Filing date: 2022-03-30
Publication date: 2022-08-23
Anticipated expiration: 2032-03-30

Abstract

The application discloses a mistake-proofing injector which comprises a needle cylinder and a needle head, wherein the needle head is provided with a needle sleeve, the needle cylinder is provided with a sleeve, a breaking groove is formed in the sleeve, and the needle head is arranged at one end, far away from the needle cylinder, of the breaking groove; the breaking groove is an annular groove arranged along the circumferential direction of the sleeve. The structure of the existing injector is improved, so that the injector can be used for intravenous injection and has an error-proof function when being used as an atomization injector. A breaking groove is arranged, and the needle sleeve can be disconnected through the breaking groove, so that the needle in the injection is disconnected with the needle cylinder; even if the medical staff takes the intravenous injection by mistake, the intravenous injection can not be used, and medical treatment errors are avoided.

Description

Error-proof syringe

Technical Field

The application relates to the field of medical equipment, in particular to a mistake-proofing injector.

Background

The aerosol inhalation method uses high-speed oxygen flow to make the liquid medicine form mist, and then the mist is inhaled from respiratory tract to achieve the purpose of treatment. Can be used for treating respiratory tract infection, and eliminating inflammation and edema. Relieve spasm, thin phlegm, and help dispel phlegm. Nebulization has become the primary and effective way of preventing pulmonary complications in recent years for bedridden and airway patients.

In the atomization process, an atomizer is required to be injected with atomized medicine through an injector, and the conventional mode is to insert a universal injector needle into a medicine bottle to extract the atomized medicine into a needle cylinder; the needle on the syringe is then removed, and the syringe is used to inject the medicament into the nebulizer, and batch-wise, staged administration of the nebulizer with the syringe may occur. In order to avoid the pollution of the medicament in the syringe, the needle and the needle sleeve are kept sleeved on the syringe before the injector is used for administering the medicament to the atomizer.

However, the injector after extracting the atomized medicine is not obviously different from the injector extracting other medicines, and misoperation of injecting the atomized medicine into the body of a patient easily occurs when medical personnel are busy.

Chinese patent application "an atomizing special syringe", application number: CN201520760026.6 discloses including the cylinder, and the cylinder front end is equipped with integrated into one piece's syringe needle, and the top of syringe needle is confined crew cut column structure, and the side on syringe needle top is equipped with the mouth of inhaling medicine, the utility model discloses avoided the nurse to give at the medicine mistake that appears, reduced the potential safety hazard.

Chinese patent application "an atomizing syringe", application number: CN202022235628.3 discloses a syringe, which comprises a syringe having a first end and a second end, a push rod mechanism slidably inserted in the syringe, two fins radially arranged on the outer side wall of the first end, a nipple connected with the syringe arranged on the second end, and a safety needle mechanism arranged in the nipple; safe syringe needle mechanism includes the needle tubing, the needle tubing have with nipple fixed connection the first section and with the second section of the coaxial intercommunication of first section, the first section external diameter is less than the second section, safety sleeve is established to the cover on the second section, the safety sleeve is close to the one end setting of nipple and first section sliding fit's snap ring, set up the tension ring on the terminal surface of snap ring, the safety sleeve is good at the second section and is short in the needle tubing. The structure of the utility model is obviously different from the common injector, thereby greatly reducing the possibility of misoperation of medical care personnel. In addition, the blade part in the safe needle mechanism is hidden in the safe sleeve when the atomized liquid medicine is not pumped, so that the probability of accidental injury of medical personnel can be greatly reduced.

Chinese patent application "injection device for aerosol inhalation dosage", application number: CN201620018913.0, which discloses a syringe and a piston drawably disposed in the syringe, wherein the syringe has an opening at the front end and an opening at the rear end, and the piston has a distal end extending out of the opening, and further comprises a nipple and a nipple sleeve; the nipple is fixedly arranged at the front end of the needle cylinder; the nipple sleeve is sleeved and fixed outside the needle cylinder in a sliding way; when the nipple sleeve slides from the rear end of the syringe to the front end of the syringe, the nipple sleeve covers the nipple. The effect is as follows: replace traditional syringe needle with the nipple, utilize the utility model discloses absorb the atomizing and inhale the medicine after, it is the atomizing and inhales the medicine or the injection medicine to be in the differentiation cylinder that can be fine promptly through the nipple for avoid medical personnel to make mistakes, and inhale the atomizing of absorption in the cylinder and use when the injection medicine and cause the medical treatment mistake, promote the nipple sleeve to the front end of cylinder, can close the nipple cover, in order to avoid the nipple to touch the foreign object and receive the infection, and then, the utility model discloses excellent in use effect, the practicality is good.

In the above patent applications, the structure of the syringe is greatly changed, and the injection is used as a special syringe for atomization, which is completely different from the existing syringe, and even cannot be used as an intravenous injection. However, such a syringe is relatively expensive to manufacture, and medical staff need to carry a plurality of different injections during actual use, which is inconvenient to use.

Disclosure of Invention

An object of the present application is to provide a mistake-proofing syringe, which is improved in the structure of the existing syringe, so that it can be used for intravenous injection, and has a mistake-proofing function when used as an atomizing syringe.

Another object of the present application is to provide a mistake-proof injector, which is provided with a breaking groove through which a needle cannula can be disconnected, so that a needle in an injection is disconnected from a cylinder; even if the medical staff takes the intravenous injection by mistake, the intravenous injection can not be used, and medical treatment errors are avoided.

Another object of the present application is to provide a mistake-proof syringe further provided with a locking structure for forcibly requiring a medical worker to disconnect the needle cannula before the syringe is administered to the nebulizer; medical errors are avoided, particularly in batch, staged nebulizer administration operations.

The technical scheme adopted by the application is as follows: a mistake-proofing injector comprises a needle cylinder and a needle head, wherein the needle head is provided with a needle sleeve, the needle cylinder is provided with a sleeve, a fracture groove is formed in the sleeve, and the needle head is arranged at one end, far away from the needle cylinder, of the fracture groove; the breaking groove is an annular groove arranged along the circumferential direction of the sleeve.

Compared with the prior art, the syringe has the advantages that the breaking groove is arranged on the tube sleeve firstly, and the needle head is arranged at one end of the breaking groove far away from the needle cylinder. Then, when used as an aerosolized dispenser, the health care provider can break the tube housing along the breaking groove by bending the needle head. The needle head is disconnected with the needle cylinder, and the needle cannot be used for intravenous injection; a partial cannula remains on the barrel and therefore does not prevent the barrel from administering the nebulizer. The fracture groove is an annular groove arranged along the circumferential direction of the sleeve, namely, the sleeve can be broken along the fracture groove by medical staff by bending the sleeve at any angle.

In the application, the structure of the injector is not greatly changed, so that the corresponding manufacturing cost is not high, and the injector is easy to popularize. And before the sleeve in the application is not broken off, the sleeve can be used for intravenous injection as a common syringe. Therefore, medical care personnel can meet various use requirements only by carrying the syringe, and the syringe is convenient for the medical care personnel to use.

In some embodiments of the present application, the fracture slot separates the shroud into a tail section proximal to the syringe and a head section distal to the syringe. Then, when used as an aerosolized dispenser, the health care provider can break the tube housing along the breaking groove by bending the needle head. While the tail section remains connected to the barrel so it does not prevent the barrel from administering the nebulizer. The sleeve of the needle head can be sleeved at the tail section, and the medicament in the needle cylinder can be prevented from being polluted.

In some embodiments of the present application, the needle is mounted to the head segment or the fracture groove. The sleeve is divided into two sections, wherein the head section is connected to the needle head which is disconnected from the needle cylinder.

In some embodiments of the present application, the tail section has an outer diameter greater than an outer diameter of the head section, and the tail section has an outer diameter greater than an inner diameter of the needle. The utility model discloses a syringe needle, including the syringe needle, the syringe needle of head section is connected with the syringe needle and is cup jointed the internal diameter phase-match of department, and the syringe needle of so nature is unmatched with the back end, and the back end can't be inserted to the syringe needle, consequently breaks the syringe needle off with the fingers and thumb after this application absorbs the medicament, is the back end that can not the accidental injury to make the back end keep complete, can be used to follow-up dosing for the atomizer.

In some embodiments of the present application, the needle sleeve is adapted to the tail section, and the needle sleeve can be sleeved outside the tail section.

When the needle head is not in use, the needle sleeve is sleeved outside the needle head. After the needle head is broken off from the needle cylinder together with the head section, the needle sleeve can be taken down from the needle head and sleeved on the tail section, so that the medicament in the needle cylinder is prevented from being polluted.

In some embodiments of the present application, a snap is disposed on the needle, and the needle is covered on the cannula, so that the snap is embedded into the breaking groove and fixedly connected with the breaking groove. In the present application, the needle structure is further modified so that after the needle is connected to the cannula, the needle is fixed to the cannula. Since the administration of the injection to the nebulizer is performed using a syringe, no needle is required. This application just fixes after the syringe needle is installed at the sleeve pipe, and that just forces medical personnel to break off the sleeve pipe with the fingers and thumb before giving medicine to the atomizer. This arrangement is particularly suitable for batch-wise, staged nebulizer administration with a syringe. Further avoiding the misoperation of medical staff.

In some embodiments of the present application, the fracture groove has a U-shaped, V-shaped, or trapezoidal cross-section.

Preferably, the side wall surface of the fracture groove close to the head section is a plane in which the sleeve is located in the radial direction. After the buckle piece is embedded into the fracture groove, the side wall surface of the fracture groove close to the head section is a plane, so that the buckle piece embedded into the fracture groove cannot fall off from the fracture groove.

In some embodiments of the present application, the latch is disposed at the needle sleeve, and the latch is disposed along a length direction of the needle.

Drawings

The present application will be described in further detail below with reference to the drawings and preferred embodiments, but those skilled in the art will appreciate that the drawings are only drawn for the purpose of illustrating the preferred embodiments and therefore should not be taken as limiting the scope of the present application. Furthermore, unless specifically stated otherwise, the drawings are merely schematic representations based on the concept of a composition or construction of the object being described and may include exaggerated displays and are not necessarily drawn to scale.

FIG. 1 is a schematic structural diagram of the present application;

FIG. 2 is a cross-sectional view of a sleeve portion of the present application;

FIG. 3 is a cross-sectional view of a sleeve portion of the present application;

FIG. 4 is a third cross-sectional view of a sleeve portion of the present application;

FIG. 5 is a first schematic view of a needle mounted cannula of the present application;

FIG. 6 is a schematic view of the cannula mounting hub of the present application;

fig. 7 is a second structural view of the cannula with the needle mounted thereon.

Wherein the reference numerals are specified as follows: 1. a needle cylinder; 2. a needle head; 3. a sleeve; 3a, a tail section; 3b, a head section; 4. a breaking groove; 5. a needle guard; 6. and a fastener.

Detailed Description

The present application will now be described in detail with reference to the accompanying drawings.

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

An error-proof syringe, according to the first embodiment, as shown in fig. 1 and 5: the needle comprises a needle cylinder 1 and a needle head 2, wherein the needle head 2 is provided with a needle sleeve 5, the needle cylinder 1 is provided with a sleeve 3, the sleeve 3 is provided with a breaking groove 4, and the needle head 2 is arranged at one end of the breaking groove 4 far away from the needle cylinder 1; then, when used as an aerosol dispenser, the medical staff can break the tube sheath along the breaking groove 4 by bending the needle 2. The needle 2 is disconnected from the syringe 1, i.e. cannot be used for intravenous injection; a portion of the cannula 3 remains on the barrel 1 and therefore does not prevent the barrel 1 from administering the nebulizer. The breaking groove 4 is an annular groove arranged along the circumference of the sleeve 3. I.e. the medical staff can break the cannula 3 along the breaking groove 4 by bending the cannula 3 at any angle.

In the application, the structure of the injector is not greatly changed, so that the corresponding manufacturing cost is not high, and the injector is easy to popularize. And before the sleeve 3 in the present application is not broken, it can be used for intravenous injection as a general syringe. Therefore, medical care personnel can meet various use requirements only by carrying the syringe, and the syringe is convenient for the medical care personnel to use.

The second embodiment is the same as the first embodiment except that: as shown in fig. 2 to 6: the breaking groove 4 divides the jacket into a tail section 3a close to the needle cylinder 1 and a head section 3b remote from the needle cylinder 1. Then, when used as an aerosol dispenser, the medical staff can break the tube sheath along the breaking groove 4 by bending the needle 2. While the tail section 3a remains connected to the syringe 1, so it does not prevent the syringe 1 from administering the nebulizer. The sleeve of the needle head 2 can be sleeved at the tail section 3a, and the medicament in the needle cylinder 1 can be prevented from being polluted.

The needle 2 is arranged on the head section 3b or the breaking groove 4. The sleeve is divided into two sections, wherein the head section 3b is connected to the needle 2 and the needle 2 is disconnected from the barrel 1.

The outer diameter of the tail section 3a is larger than that of the head section 3b, and the outer diameter of the tail section 3a is larger than the inner diameter of the needle head 2. Specifically, the external diameter of head segment 3b and the internal diameter phase-match of 2 sockets of syringe needle department, so natural syringe needle 2 does not match with back end 3a, and syringe needle 2 can't insert back end 3a, consequently breaks syringe needle 2 off with the fingers and thumb after this application absorbs the medicament, is the back end 3a that can not the accidental injury to make back end 3a keep intact, can be used to follow-up dosing for the atomizer.

As shown in fig. 6, the needle sleeve 5 is fitted to the tail section 3a, and the needle sleeve 5 can be sleeved outside the tail section 3 a. As shown in figure 1, when the needle 2 is not in use, the sleeve 5 is sleeved outside the needle 2. After the needle head 2 is broken off from the syringe 1 together with the head section 3b, the needle sheath 5 can be taken off from the needle head 2 and sleeved on the tail section 3a, so that the medicament in the syringe 1 is prevented from being polluted.

The third embodiment is the same as the first embodiment or the second embodiment, and the difference is as follows: as shown in fig. 7, the needle 2 is provided with a fastener 6, and the needle 2 is sleeved on the sleeve 3, so that the fastener 6 is embedded into the fracture groove 4 and is fixedly connected with the fracture groove 4. In the present application, the structure of the needle 2 is further improved so that the needle 2 is fixed with the sleeve 3 after the sleeve 3 is connected with the needle 2. Since the administration of the injection to the nebulizer is performed using the cylinder 1 without the needle 2. The present application is fixed after the needle 2 is mounted in the cannula 3, which forces the medical staff to break the cannula 3 before administering the drug to the nebulizer. This arrangement is particularly suitable for batch-wise, staged nebulizer administration with a syringe. Further avoiding the misoperation of medical staff.

The buckling piece 6 is arranged at the sleeving joint of the needle head 2, and the buckling piece 6 is arranged along the length direction of the needle head 2.

As shown in fig. 2 to 4, the fracture groove 4 has a U-shaped, V-shaped or trapezoidal cross section.

Preferably, the side wall surface of the fracture groove 4 close to the head section 3b is a plane in which the sleeve 3 is located in the radial direction. After the snap-in piece 6 is embedded into the fracture groove 4, the snap-in piece 6 embedded into the fracture groove 4 cannot fall off from the fracture groove 4 because the side wall surface of the fracture groove 4 close to the head section 3b is a plane.

The present application has been described in detail, and the principles and embodiments of the present application have been described herein using specific examples, which are provided only to help understand the present application and its core concept. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.

Claims

1. The error-proofing injector is characterized by comprising a needle cylinder and a needle head, wherein the needle head is provided with a needle sleeve, the needle cylinder is provided with a sleeve, a breaking groove is formed in the sleeve, and the needle head is arranged at one end, far away from the needle cylinder, of the breaking groove; the breaking groove is an annular groove arranged along the circumferential direction of the sleeve.

2. The error-proofing injector of claim 1, wherein the fracture groove separates the shroud into a tail section proximal to the barrel and a head section distal to the barrel.

3. A mistake-proof syringe as claimed in claim 2 wherein the outer diameter of the tail section is greater than the outer diameter of the head section and the outer diameter of the tail section is greater than the inner diameter of the needle.

4. A mistake-proof syringe as claimed in claim 2 wherein the sleeve is adapted to the tail section and the sleeve is adapted to fit over the tail section.

5. The error-proofing syringe of claim 1, wherein the cross-section of the fracture groove is U-shaped, V-shaped or trapezoidal.

6. A mistake-proof syringe as claimed in claim 1 or 5 wherein the side wall surface of the fracture groove adjacent to the head section is a plane in which the sleeve is located radially.

7. The error-proofing syringe of claim 1, wherein the needle is provided with a snap-in element, and the needle is sleeved on the sleeve so that the snap-in element is inserted into the fracture groove and fixedly connected with the fracture groove.

8. The error proofing syringe of claim 7 wherein the snap fitting is disposed at the needle hub, the snap fitting being disposed along the length of the needle.

9. A mistake-proof syringe as claimed in claim 1 wherein the needle is mounted in the head or the break-away groove.