CN213031534U

CN213031534U - Intracavity injector

Info

Publication number: CN213031534U
Application number: CN202020565287.3U
Authority: CN
Inventors: 赖习华; 罗柳
Original assignee: Zhuzhou Central Hospital
Current assignee: Zhuzhou Central Hospital
Priority date: 2020-04-16
Filing date: 2020-04-16
Publication date: 2021-04-23
Anticipated expiration: 2030-04-16

Abstract

Intracavity syringe, including being responsible for, adorn the syringe in the main pipe and with the syringe needle of syringe intercommunication, its characterized in that the main pipe for the return bend that has the bent angle, the syringe is for the return bend with be responsible for shape matched with, the syringe needle dress is at the syringe front end and is located to be responsible for, still adorns in being responsible for and is being used for driving the syringe needle and stretch out the control assembly that stretches out of being responsible for, stretches out control assembly and syringe parallel arrangement. The utility model discloses avoid the syringe needle to remove at the intracavity before the intracavity injection and cause intracavity tissue stab, make the syringe needle stretch out to pierce the injection position through stretching out the control assembly again after waiting to move required position, realize the intracavity syringe that has the bent angle and stretch out the syringe needle again after going into the chamber, improve the security of intracavity injection, reduce patient's misery.

Description

Intracavity injector

Technical Field

The utility model relates to an intracavity injector, which relates to the technical field of medical instruments.

Background

Syringes are common medical devices that primarily use needles to draw or inject gases or liquids, and syringes may also be used for medical devices, containers, and scientific instruments such as those used in chromatography to inject through rubber septa. The injector in the prior art is usually made of a plastic injector and an injection head at the bottom of the plastic injector, after liquid medicine is sucked, the injection head cannot be protected in the process of moving the injector due to the fact that the injection head is relatively sharp, particularly, intracavity tissues of a patient are easily damaged by intracavity injection, an injector with a retractable injection needle head has been produced in an intracavity injector with a straight pipe, but how to realize the extension of the injection needle head after the injection needle head enters a cavity in the intracavity injector with a bent angle does not have the existing scheme.

SUMMERY OF THE UTILITY MODEL

The utility model provides an intracavity syringe avoids the syringe needle to remove at the intracavity before the intracavity injection and causes intracavity tissue to stab, makes the syringe needle stretch out to pierce the injection position through stretching out the control assembly again after waiting to move required position, realizes the intracavity syringe that has the bent angle and stretches out the syringe needle again after going into the chamber, improves the security of intracavity injection, reduces patient's misery.

In order to achieve the above purpose, the utility model adopts the technical scheme that:

intracavity syringe, including being responsible for, adorn the syringe in the main pipe and with the syringe needle of syringe intercommunication, its characterized in that the main pipe for the return bend that has the bent angle, the syringe is for the return bend with be responsible for shape matched with, the syringe needle dress is at the syringe front end and is located to be responsible for, still adorns in being responsible for and is being used for driving the syringe needle and stretch out the control assembly that stretches out of being responsible for, stretches out control assembly and syringe parallel arrangement.

Preferably, the main pipe is divided into a branch pipe I and a branch pipe II, the injection pipe and the injection needle are arranged in the branch pipe I, the extension control component is arranged in the branch pipe II, and the front end of the branch pipe I is provided with a guide hole for extending the injection needle.

Preferably, the syringe including have the syringe body of bent angle with can tensile ripple rubber tube, ripple rubber tube one end and syringe body cup joint fixedly, the other end at ripple rubber tube is adorned to the syringe needle.

Preferably, the syringe needle by the syringe needle body with fix this end of body of syringe needle and the diameter is greater than the installation department of guiding hole diameter and constitute, installation department and ripple rubber tube tip rigid coupling, stretch out the control assembly and include flexible steel spring push rod and be located the handle outside the main pipe, steel spring push rod sets up in minute pipe two and the front end is connected with the installation department, the end is connected with the handle, steel spring push rod moves in minute pipe two along with the promotion of handle, drive the installation department and move in minute pipe one, make the syringe needle body stretch out from the guiding hole.

Preferably, the steel spring push rod comprises a steel spring, a front end connecting part fixed at the front end of the steel spring and a tail end connecting part fixed at the tail end of the steel spring, the front end connecting part is connected with the mounting part through a connecting rod, and the connecting rod radially penetrates out of the branch pipe II and extends into the branch pipe I and can move along with the movement of the steel spring push rod.

Preferably, the steel spring push rod is in clearance fit with the branch pipe, and the injection pipe is in clearance fit with the branch pipe.

Preferably, the tail end connecting part is connected with a butterfly bolt used for positioning the steel spring push rod, and the butterfly bolt penetrates through the pipe wall of the branch pipe II to be in threaded fit connection with the tail end connecting part.

Preferably, the tail end of the injection tube body extends out of the branch tube I and is provided with a joint, and the outer side of the tail ends of the branch tubes are provided with dimension scale marks.

The utility model has the advantages that:

1. the utility model discloses a set up in being responsible for in the intracavity syringe and stretch out control assembly, drive the syringe needle through stretching out control assembly and stretch out and be responsible for, avoid the syringe needle to remove in the intracavity before the intracavity injection and cause intracavity tissue stab, treat to remove required position after, rethread stretches out control assembly and makes the syringe needle stretch out to pierce the injection position, improves the security of intracavity injection, reduces patient's misery.

2. Including the syringe body that has the bent angle with can tensile ripple rubber tube in the syringe, the bent angle demand of syringe is realized through the syringe body, the extension demand of syringe when the stretchable characteristic adaptation syringe needle through ripple rubber tube stretches out, it includes flexible steel spring push rod to stretch out the control assembly, flexible characteristic through steel spring push rod makes steel spring push rod can be in minute intraductal two internal motion, thereby it stretches out to drive syringe needle, the realization has the intracavity syringe of bent angle and stretches out syringe needle after going into the chamber again.

3. The steel spring push rod is in clearance fit with the branch pipe II to effectively guide the movement of the steel spring push rod in the branch pipe II, and the injection pipe is in clearance fit with the branch pipe I to reduce the radial deformation of the corrugated rubber pipe in the injection process and improve the injection reliability. The butterfly bolt is screwed to position the steel spring push rod so as to position the extending length of the injection needle, the extending reliability of the injection needle is higher, and the outer part of the branch pipe is provided with dimension scale marks, so that an operator can conveniently master the extending length of the injection needle.

Drawings

Fig. 1 is a schematic structural view of the intracavity syringe of the present invention.

Fig. 2 is a schematic structural view of the main pipe.

Fig. 3 is a schematic front end view of the main tube.

Fig. 4 is a partially enlarged view of fig. 1.

Fig. 5 is a schematic structural view of the extension control assembly.

Detailed Description

Embodiments of the present invention will be described in detail with reference to fig. 1 to 5.

Intracavity syringe, including being responsible for 1, adorn syringe 2 in being responsible for 1 and the syringe needle 3 with syringe 2 intercommunication, its characterized in that be responsible for 1 for the return bend that has the bent angle, syringe 2 be for being responsible for 1 shape matched with return bend with being responsible for, syringe needle 3 dress is in 2 front ends of syringe and is located being responsible for 1, still adorns in being responsible for 1 and is being used for driving syringe needle 3 and stretch out the control assembly 4 that stretches out that is responsible for 1, stretches out control assembly 4 and syringe 2 parallel arrangement.

Above intracavity syringe in be responsible for 1 and set up and stretch out control assembly 4, drive injection needle 3 through stretching out control assembly 4 and stretch out and be responsible for 1, avoid injection needle 3 to move in the intracavity before the intracavity injection and cause intracavity tissue stab, treat to move to required position after, rethread stretches out control assembly 4 and makes injection needle 3 stretch out and pierce the injection position, improves the security of intracavity injection, reduces patient's misery.

The main pipe 1 is divided into a branch pipe I11 and a branch pipe II 12, the injection pipe 2 and the injection needle 3 are arranged in the branch pipe I11, the extension control component 4 is arranged in the branch pipe II 12, the front end of the branch pipe I11 is provided with a guide hole 11.1 for the injection needle 3 to extend out, and the guide hole 11.1 guides the extension of the injection needle 3. The injection tube 2 comprises an injection tube body 21 with a bend angle and a stretchable corrugated rubber tube 22, one end of the corrugated rubber tube 22 is fixedly sleeved with the injection tube body 21, and the injection needle 3 is arranged at the other end of the corrugated rubber tube 22. The bend angle requirement of the syringe 2 is achieved by the syringe body 21, and the stretch requirement of the syringe when the needle is extended is accommodated by the stretchable nature of the bellows 22.

Wherein, syringe needle 3 constitute by syringe needle body 31 and the installation department 32 of fixing that 31 tip of syringe needle body and diameter are greater than guiding hole 11.1 diameter,

installation department

32 and 22 tip rigid couplings of ripple rubber tube, it includes flexible steel spring push rod 41 and is located the handle 42 of being responsible for 1 outer to stretch out control assembly 4, steel spring push rod 41 sets up in minute pipe two 12 and front end is connected with installation department 32, the end is connected with handle 42, steel spring push rod 41 moves in minute pipe two 12 along with handle 42's promotion, drive installation department 32 and move in minute pipe one 11, make syringe needle body 31 stretch out from guiding hole 11.1.

The installation part 32 has triple functions, wherein one function is to connect the needle body 31 with the corrugated rubber tube 22, the other function is to connect the installation part 32 with the steel spring push rod 41, the movement of the steel spring push rod 41 is synchronous with the extension of the needle body 31 and the extension of the corrugated rubber tube 22, and the third function is to enable the diameter of the installation part 32 to be larger than that of the guide hole 11.1, and when the installation part 32 is in end face contact with the branch tube two 12, the maximum extension length of the needle body 31 is limited. During operation, the handle 42 is pressed by fingers to push the steel spring push rod 41 to move in the branch tube II 12, so that the mounting part 32 is driven to move in the branch tube I11, the needle body 31 extends out of the guide hole 11.1, and the intracavity injector with the bending angle extends out of the injection needle after entering the cavity.

The steel spring push rod 41 consists of a steel spring 41.1, a front end connecting part 41.2 fixed at the front end of the steel spring 41.1 and a tail end connecting part 41.3 fixed at the tail end of the steel spring 41.1, the front end connecting part 41.2 is connected with the mounting part 32 through a connecting rod 43, and the connecting rod 43 radially penetrates out of the branch pipe II 12 and extends into the branch pipe I11 and can move along with the movement of the steel spring push rod 41. The two ends of the connecting rod 43 are respectively connected with the mounting part 32 and the front end connecting part 41.2, and the connecting rod 43 moves in the main pipe 1 along with the movement of the steel spring push rod 41 so as to drive the mounting part 32 to move synchronously.

The steel spring push rod 41 is in clearance fit with the second branch pipe 12 to effectively guide the movement of the steel spring push rod 41 in the second branch pipe, and the injection pipe 2 is in clearance fit with the first branch pipe 11 to reduce radial deformation of the corrugated rubber pipe 22 in the injection process and improve the injection reliability.

The tail end connecting portion 41.3 is connected with a butterfly bolt 41.4 used for positioning the steel spring push rod 41, and the butterfly bolt 41.4 penetrates through the pipe wall of the branch pipe two 12 to be in threaded fit connection with the tail end connecting portion 41.3. The butterfly bolt 41.4 is screwed to position the steel spring push rod 41 so as to position the extending length of the injection needle, and the extending reliability of the injection needle is higher.

The tail end of the injection tube body 21 extends out of the branch tube I11 and is provided with a joint 21.1 which can be connected with an injection head and is used for injecting liquid medicine; the outer side of the tail end of the branch pipe II 12 is provided with a size scale mark, so that an operator can conveniently master the extending length of the injection needle.

The technical solutions of the embodiments of the present invention are completely described above with reference to the accompanying drawings, and it should be noted that the described embodiments are only some embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Claims

1. Intracavity syringe, including being responsible for (1), adorn syringe (2) in being responsible for (1) and syringe needle (3) with syringe (2) intercommunication, its characterized in that be responsible for (1) for the return bend that has the bent angle, syringe (2) are for being responsible for (1) shape matched with return bend, syringe needle (3) dress is in syringe (2) front end and is located and is responsible for (1), still adorns in being responsible for (1) and is being used for driving syringe needle (3) to stretch out stretching out control assembly (4) of being responsible for (1), stretches out control assembly (4) and syringe needle (2) parallel arrangement.

2. The intracavity syringe of claim 1, wherein the main tube (1) is divided into a first branch tube (11) and a second branch tube (12), the injection tube (2) and the injection needle (3) are arranged in the first branch tube (11), the extension control component (4) is arranged in the second branch tube (12), and the front end of the first branch tube (11) is provided with a guide hole (11.1) for extending the injection needle (3).

3. An intracavity syringe as claimed in claim 2 wherein said syringe (2) includes a bent body (21) and a stretchable bellows rubber tube (22), one end of the bellows rubber tube (22) is fixedly connected to the syringe body (21), and said needle (3) is mounted to the other end of the bellows rubber tube (22).

4. An intracavity syringe as claimed in claim 3 wherein said injection needle (3) is composed of a needle body (31) and a mounting portion (32) fixed at the end of the needle body (31) and having a diameter greater than the diameter of the guide hole (11.1), the mounting portion (32) is fixedly connected to the end of the corrugated rubber tube (22), the protrusion control component (4) includes a bendable steel spring push rod (41) and a handle (42) located outside the main tube (1), the steel spring push rod (41) is disposed in the second branch tube (12) and has a front end connected to the mounting portion (32) and a rear end connected to the handle (42), the steel spring push rod (41) moves in the second branch tube (12) with the push of the handle (42) to drive the mounting portion (32) to move in the first branch tube (11) so that the needle body (31) protrudes from the guide hole (11.1).

5. The intracavity syringe of claim 4, wherein the steel spring push rod (41) comprises a steel spring (41.1), a front end connecting part (41.2) fixed at the front end of the steel spring (41.1) and a tail end connecting part (41.3) fixed at the tail end of the steel spring (41.1), the front end connecting part (41.2) is connected with the mounting part (32) through a connecting rod (43), and the connecting rod (43) radially penetrates out of the branch pipe II (12) and extends into the branch pipe I (11) and can move along with the movement of the steel spring push rod (41).

6. An intracavity syringe as claimed in claim 4 wherein said steel spring plunger (41) is in clearance fit with the second branch (12) and the syringe (2) is in clearance fit with the first branch (11).

7. The intracavity syringe of claim 5, wherein the end connecting part (41.3) is connected with a butterfly bolt (41.4) for positioning the steel spring push rod (41), and the butterfly bolt (41.4) passes through the wall of the branch pipe II (12) to be connected with the end connecting part (41.3) in a threaded fit manner.

8. An intracavity syringe as claimed in claim 3 wherein the distal end of said syringe body (21) extends from said first branch (11) and has a junction (21.1) and the outer side of the distal end of said second branch (12) is provided with dimensional graduations.