CN213884518U

CN213884518U - Contrast medium pressurization is subassembly for injection

Info

Publication number: CN213884518U
Application number: CN202020872166.3U
Authority: CN
Inventors: 吕滨; 安云强; 侯志辉; 高扬; 班兴萍; 赵娜; 邢振松; 王翔
Original assignee: Fuwai Hospital of CAMS and PUMC
Current assignee: Fuwai Hospital of CAMS and PUMC
Priority date: 2020-05-22
Filing date: 2020-05-22
Publication date: 2021-08-06
Anticipated expiration: 2030-05-22

Abstract

The utility model discloses a contrast medium pressurization is subassembly for injection, including syringe, spiral cap and body, spiral cap is the echelonment, revolves the tip and the syringe threaded connection of cap, revolves the main aspects of cap and the one end sealing connection of body, and revolves the cap and can rotate for the body. The screw cap and the tube body can rotate relative to the tube body while being in sealed connection, so that the rotation of the tube body cannot be caused when the screw cap is in threaded connection with the syringe connector, compared with the existing structure that the tube body is directly screwed and the syringe connector is connected, the threaded connection with the syringe connector is simple and convenient to operate, the connecting tube connected with the injection part of a patient can be prevented from rotating, and the pain of the patient caused by the connection of the syringe connector can be reduced as much as possible; the scale for indicating the volume of the injected air during pressurization is added on the outer surface of the injector, so that an operator can easily grasp the pressurization degree.

Description

Contrast medium pressurization is subassembly for injection

Technical Field

The utility model belongs to the technical field of medical instrument, especially, relate to a contrast medium is subassembly for pressure injection.

Background

The enhanced scanning is to inject contrast medium into a blood vessel (generally an antecubital vein) from the vein and carry out CT scanning at the same time, can find focus which is not found during flat scanning, is mainly used for identifying whether lesion is vascular or non-vascular, determining the relation between mediastinal lesion and great blood vessel of heart and knowing the blood supply condition of lesion so as to help identify benign and malignant lesions and the like; the information content of the focus is increased, so that qualitative analysis and even definite diagnosis of the focus are facilitated.

The injection of contrast agent requires pressurized injection, and the conventional pressurized injection assembly, as shown in fig. 1, includes a pressurizing syringe and a tube body, one end of which is threadedly coupled to a connector of the syringe and the other end of which is coupled to an injection site of a patient through a connection tube, wherein the syringe is pushed and maintained at a certain pressure by a hydraulic press. Because the body passes through the connecting pipe and directly is connected with patient, the body need rotate the body when body and syringe threaded connection again, and the rotating tube body can directly drive the connecting pipe of being connected with patient and rotate, because tear the link with patient when connecting, can cause the misery for the patient to the operation of being connected of body and syringe joint is very inconvenient.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides an assembly for the pressurized injection of contrast agent.

The utility model provides a contrast medium pressurization is subassembly for injection, includes the syringe, still includes and revolves cap and body, it is the echelonment to revolve the cap, revolve the cap the tip with syringe threaded connection, revolve the cap the main aspects with the one end sealing connection of body, just it can for to revolve the cap the body rotates.

Above technical scheme is preferred, what revolve the symmetry on the main aspects inner wall of cap is equipped with two axial slides, the slide is close to one side of tip be equipped with the circumference draw-in groove of slide intercommunication, the one end symmetry of body is equipped with two lugs, the lug passes through the slide gets into the draw-in groove, just the lug can slide in the draw-in groove, the body with be equipped with the sealing washer on the step form inner wall of revolving the cap contact.

Above technical scheme is preferred, be equipped with the connecting band on the outer wall of the main aspects of spiral cap, the end of connecting band is equipped with sealing mechanism.

Above technical scheme is preferred, sealing mechanism is including connecting cap, connecting rod and sealing plug, the both ends of connecting rod respectively with connect cap and sealing plug and be connected, connect the cap with the connecting band is connected, connecting rod and sealing plug get into in the slide, the sealing plug is used for right the slide is sealed.

Above technical scheme is preferred, connect the cap be close to one side of tip with the terminal surface contact of spiral cap main aspects, just connect the cap with the outer wall of body is equipped with the clearance.

Preferably, in the above technical solution, the bump is hemispherical.

Preferably, in the above technical solution, the diameter of the bump is equal to the width of the slot.

Above technical scheme is preferred, the surface of syringe is equipped with the scale.

Above technical scheme is preferred, be equipped with the check valve on the pipeline that body and patient are connected.

The utility model has the advantages and positive effects that: the utility model provides a contrast medium pressurization is subassembly for injection, including syringe, spiral cap and body, can rotate for the body when revolving cap and body sealing connection to make the spiral cap can not arouse the rotation of body when connecting with syringe joint screw thread, compare in the structure that current direct twist moves body and syringe joint and is connected, the threaded connection with syringe joint is easy and convenient to operate, and can avoid arousing the connecting pipe rotation of being connected with patient's injection position, can reduce as far as because the patient's that connects syringe joint arouses misery; the scale for indicating the volume of the injected air during pressurization is added on the outer surface of the injector, so that an operator can easily grasp the pressurization degree.

Drawings

FIG. 1 is a schematic diagram of a prior art assembly for pressurized injection of contrast media;

fig. 2 is a schematic structural diagram of a contrast medium pressurized injection assembly according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a screw cap and a pipe body according to an embodiment of the present invention;

fig. 4 is a right side view of a swivel cap according to an embodiment of the present invention;

FIG. 5 is an enlarged view of a portion of FIG. 3 at A;

fig. 6 is a schematic structural diagram of a sealing mechanism according to an embodiment of the present invention.

Wherein: 1. an injector; 2. screwing the cap; 3. a pipe body; 4. a slideway; 5. a card slot; 6. a bump; 7. a seal ring; 8. a connecting belt; 9. a connecting cap; 10. a connecting rod; 11. a sealing plug; 12. calibration; 13. a one-way valve.

Detailed Description

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

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed 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 meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

The embodiment provides a contrast medium pressurization injection assembly, as shown in fig. 2-6, including syringe 1, still include screw cap 2 and body 3, screw cap 2 is the echelonment, the tip of screw cap 2 with syringe 1 threaded connection, the main aspects of screw cap 2 with the one end sealing connection of body 3, just screw cap 2 can rotate for body 3. The outer surface of the syringe 1 is provided with scales 12, the unit of the scales is milliliter, the volume of air injected during pressurization can be indicated by the scales, and the structure of the syringe is the same as that of the existing pressurization syringe except that the scales are increased on the outer surface of the syringe. The threaded connection structure of the injector and the screw cap is the same as that of the existing injector and tube body, the joint of the injector is an external thread, and the small end of the screw cap is an internal thread. The kneck self of body in this embodiment carries one and revolves the cap, revolves the cap through twisting to be connected with the syringe connects, replaces current directness and revolves body and syringe articulate through twisting, and revolves sealed just rotation that can be relative between cap and the body and be connected, makes the rotation of revolving the cap can not drive the rotation of body.

It is specific, what revolve the symmetry on the main aspects inner wall of cap 2 is equipped with two axial slides 4, slide 4 is close to one side of tip be equipped with the circumference draw-in groove 5 of slide 4 intercommunication, the one end symmetry of body 3 is equipped with two lugs 6, lug 6 passes through slide 4 gets into draw-in groove 5, just lug 6 can slide in draw-in groove 5, body 3 with be equipped with sealing washer 7 on the step form inner wall of revolving cap 2 contact, when the sliding connection of draw-in groove and lug made rotatory cap of revolving carry out syringe articulate, the draw-in groove rotated for the lug to avoid driving the body and rotate, can guarantee the leakproofness that body and revolving the cap are connected through set up the sealing washer on the step form inner wall of body and revolving the cap contact.

In order to further guarantee the leakproofness that body and spiral cap are connected, be equipped with connecting band 8 on the outer wall of the main aspects of spiral cap 2, the end of connecting band 8 is equipped with sealing mechanism.

Specifically, sealing mechanism is including connecting cap 9, connecting rod 10 and sealing plug 11, the both ends of connecting rod 10 respectively with connect cap 9 and sealing plug 11 and be connected, connect cap 9 with connecting band 8 is connected, connecting rod 10 and sealing plug 11 get into in the slide 4, sealing plug 11 be used for right slide 4 is sealed.

Optionally, one side of the connecting cap 9 close to the small end is in contact with the end face of the large end of the screw cap 2, and a gap is formed between the connecting cap 9 and the outer wall of the pipe body 3.

Optionally, the bump 6 is hemispherical, and a spherical diameter of the bump 6 is equal to a width of the slot 5. The outer surface of the screw cap is provided with anti-skid lines. In order to prevent the contrast agent or blood from flowing back, a one-way valve 13 is arranged on a pipeline for connecting the tube body and the patient, the one-way valve 13 is a commercially available medical one-way valve, and the specific structure of the one-way valve is the same as that of a one-way valve (check valve) on the existing infusion tube.

The working process of the embodiment: one end of the tube body is provided with a rotating cap, when the rotating cap is in threaded connection with the injector connector, the rotating cap is required to rotate, and due to the fact that the clamping groove of the rotating cap is in sliding connection with the protruding block of the tube body, the clamping groove rotates relative to the protruding block, the tube body cannot rotate along with the rotating cap, and the tube body and a sealing ring arranged on the step-shaped inner wall in contact with the rotating cap can guarantee the tightness of connection between the tube body and the rotating cap.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. An assembly for pressurized injection of contrast media, comprising an injector, characterized in that: still include to revolve cap and body, it is the echelonment to revolve the cap, revolve the cap the tip with syringe threaded connection, revolve the cap the main aspects with the one end sealing connection of body, just it can for revolve the cap the body rotates.

2. The contrast media pressurizing and injecting assembly according to claim 1, wherein: what revolve the symmetry on the main aspects inner wall of cap is equipped with two axial slides, the slide is close to one side of tip be equipped with the circumference draw-in groove of slide intercommunication, the one end symmetry of body be equipped with two lugs, the lug passes through the slide gets into the draw-in groove, just the lug can slide in the draw-in groove, the body with be equipped with the sealing washer on the step form inner wall of revolving the cap contact.

3. The contrast media pressurizing and injecting assembly according to claim 2, wherein: the outer wall of the big end of the screw cap is provided with a connecting belt, and the tail end of the connecting belt is provided with a sealing mechanism.

4. The contrast media pressurizing and injecting assembly according to claim 3, wherein: the sealing mechanism comprises a connecting cap, a connecting rod and a sealing plug, the two ends of the connecting rod are respectively connected with the connecting cap and the sealing plug, the connecting cap is connected with the connecting band, the connecting rod and the sealing plug enter the slide way, and the sealing plug is used for sealing the slide way.

5. The contrast media pressurizing and injecting assembly according to claim 4, wherein: one side of the connecting cap close to the small end is in contact with the end face of the large end of the screw cap, and a gap is formed between the connecting cap and the outer wall of the pipe body.

6. The contrast media pressurizing and injecting assembly according to claim 2, wherein: the bumps are hemispherical.

7. The contrast media pressurizing and injecting assembly according to claim 6, wherein: the sphere diameter of the convex block is equal to the width of the clamping groove.

8. The contrast media pressurizing and injecting assembly according to claim 1, wherein: the outer surface of the injector is provided with scales.

9. The contrast media pressurizing and injecting assembly according to claim 1, wherein: and a one-way valve is arranged on a pipeline for connecting the tube body with a patient.