CN214971270U

CN214971270U - Radiopharmaceutical injection device for nuclear medicine science

Info

Publication number: CN214971270U
Application number: CN202120821623.0U
Authority: CN
Inventors: 管永梅; 龚朝琼; 邓云霞
Original assignee: First Peoples Hospital of Qujing
Current assignee: First Peoples Hospital of Qujing
Priority date: 2021-04-21
Filing date: 2021-04-21
Publication date: 2021-12-03
Anticipated expiration: 2031-04-21

Abstract

The utility model belongs to the technical field of the medical treatment, especially, be a radiopharmaceutical injection device for nuclear medicine branch of academic or vocational study, including cylinder and connecting block, be fixed with the pull ring that makes things convenient for the push-and-pull connecting block on the cylinder, install the injection syringe on the cylinder, the syringe needle is installed to the tip of injection syringe, it is equipped with the piston rod to slide to insert in the cylinder, the one end of piston rod is installed the lateral wall of piston piece and is closely laminated with the inner wall of cylinder, the one end of piston rod is fixed with the connecting block, be equipped with the suck-back mechanism that prevents that the device suck-back is prevented on the cylinder. The utility model discloses a set up commentaries on classics piece, cylinder, triangle piece, draw piece, spring and rack, when injecting the medicament, along with the piston rod moves left, the triangle piece constantly by upwards oppression, the triangle piece can prevent the piston rod to move right, has effectively prevented the condition of suck-back, and when needs absorb the medicament, the pulling draws the piece to rotate the commentaries on classics piece, makes the triangle piece leave the rack.

Description

Radiopharmaceutical injection device for nuclear medicine science

Technical Field

The utility model relates to the technical field of medical treatment, specifically be a radiopharmaceutical injection device for nuclear medicine branch of academic or vocational study.

Background

Nuclear medicine, which is an emerging subject for diagnosing, treating and studying diseases by using nuclear technology, is a product of combining modern scientific technologies such as nuclear technology, electronic technology, computer technology, chemistry, physics, biology and the like with medicine, and can be divided into two categories, namely clinical nuclear medicine and basic nuclear medicine or experimental nuclear medicine, in which a syringe is used to inject a radiopharmaceutical into a patient.

However, since most of the syringes on the market do not have a function of preventing back suction, and the syringe sucks the liquid in the body of the patient and causes pain to the patient when the injection of the medicine is stopped, a radiopharmaceutical injection apparatus for nuclear medicine has been proposed to solve the above-mentioned problems.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a to prior art not enough, the utility model provides a radiopharmaceutical injection device for nuclear medicine branch of academic or vocational study has solved the problem that present most syringes on the market do not have the function of preventing suck-back.

The second technical proposal.

The utility model discloses a realize above-mentioned purpose and specifically adopt following technical scheme:

the utility model provides a radiopharmaceutical injection device for nuclear medicine branch of academic or vocational study, includes cylinder and connecting block, be fixed with the pull ring that makes things convenient for the push-and-pull connecting block on the cylinder, install the injection syringe on the cylinder, the syringe needle is installed to the tip of injection syringe, it is equipped with the piston rod to slide to insert in the cylinder, the lateral wall that the piston block and piston block were installed to the one end of piston rod closely laminates with the inner wall of cylinder, the one end of piston rod is fixed with the connecting block, be equipped with the suck-back mechanism that prevents that the device suck-back is used for on the cylinder.

Furthermore, the surface of the needle cylinder is provided with scales.

Further, a base used for stably placing the device on a table top is fixed on the needle cylinder.

Further, prevent suck-back mechanism is including formulating the commentaries on classics piece of installing on the cylinder, sliding insert is equipped with the cylinder on the commentaries on classics piece, cylindrical one end is fixed with three hornblocks, cylindrical one end is fixed with draws the piece, it establishes on cylindrical surface to be fixed with spring and spring housing between commentaries on classics piece and the three hornblocks, construct the rack with three hornblock looks adaptations on the piston rod.

(III) advantageous effects

Compared with the prior art, the utility model provides a radiopharmaceutical injection device for nuclear medicine branch of academic or vocational study possesses following beneficial effect:

the utility model discloses, through setting up commentaries on classics piece, cylinder, triangle piece, drawing piece, spring and rack, when injecting the medicament, along with the piston rod moves left, the triangle piece constantly by upwards oppression, the triangle piece can prevent the piston rod to move right, has effectively prevented the condition of suck-back, and when needs absorb the medicament, the pulling draws the piece to rotate the commentaries on classics piece, makes the triangle piece leave the rack.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is an enlarged schematic view of fig. 1 at a according to the present invention;

FIG. 3 is a schematic top view of the present invention;

fig. 4 is a schematic sectional view along the direction B-B of fig. 3 according to the present invention.

In the figure: 1. a needle cylinder; 2. a pull ring; 3. a base; 4. an injection tube; 5. a needle head; 6. a piston rod; 7. a piston block; 8. connecting blocks; 9. an anti-suck-back mechanism; 901. rotating the block; 902. a cylinder; 903. a triangular block; 904. pulling the block; 905. a spring; 906. a rack.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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.

Examples

As shown in fig. 1-4, an embodiment of the present invention provides a radiopharmaceutical injection device for nuclear medicine department, which comprises a needle cylinder 1 and a connecting block 8, wherein a pull ring 2 for conveniently pushing and pulling the connecting block 8 is fixed on the needle cylinder 1, an injection tube 4 is installed on the needle cylinder 1, a needle head 5 is installed at the end of the injection tube 4, a piston rod 6 is slidably inserted in the needle cylinder 1, a piston block 7 is installed at one end of the piston rod 6, the side wall of the piston block 7 is tightly attached to the inner wall of the needle cylinder 1, the connecting block 8 is fixed at one end of the piston rod 6, a suck-back prevention mechanism 9 for preventing the device from suck back is arranged on the needle cylinder 1, when the radiopharmaceutical is sucked, the suck-back prevention mechanism 9 is adjusted, the suck-back prevention mechanism 9 does not affect the radiopharmaceutical, the connecting block 8 is pulled rightwards, the connecting block 8 can drive the piston rod 6 to move, the piston block 6 can drive the piston block 7 to move, the radiopharmaceutical is sucked into the needle cylinder 1 from the needle head 5, during injection, the suck-back prevention mechanism 9 is adjusted, so that the suck-back prevention mechanism 9 can effectively prevent suck-back.

As shown in fig. 1 and 3, in some embodiments, the surface of the syringe 1 is provided with scales, and the medical staff can determine the amount of the sucked or injected medicine according to the scales on the syringe 1.

As shown in fig. 1 and 4, in some embodiments, a base 3 for stably placing the device on a table top is fixed on the needle cylinder 1, and when the device is not used, the device is placed on the table top, so that the base 3 is in contact with the table top, and the device is placed more stably and is not easy to roll off.

As shown in fig. 2, in some embodiments, the suck-back prevention mechanism 9 includes a rotation block 901 configured to be installed on the syringe 1, a cylinder 902 is slidably inserted into the rotation block 901, a triangle block 903 is fixed at one end of the cylinder 902, a pull block 904 is fixed at one end of the cylinder 902, a spring 905 is fixed between the rotation block 901 and the triangle block 903, and the spring 905 is sleeved on the surface of the cylinder 902, a rack 906 adapted to the triangle block 903 is configured on the piston rod 6, when a medicine is injected, the piston rod 6 moves leftward, due to the arrangement of the spring 905, the triangle block 903 can be driven to reciprocate in a vertical direction, the triangle block 903 can prevent the piston rod 6 from moving rightward, thereby effectively preventing suck-back from occurring, when the medicine is sucked, the pull block 902 is pulled, the cylinder 902 can drive the triangle block 903 to move, and the rotation block 901 makes the triangle block 903 not contact with the rack 906.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. 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 radiopharmaceutical injection apparatus for nuclear medicine branch of academic or vocational study, includes cylinder (1) and connecting block (8), its characterized in that: the syringe is characterized in that a pull ring (2) convenient for pushing and pulling a connecting block (8) is fixed on the syringe (1), an injection tube (4) is installed on the syringe (1), a needle head (5) is installed at the end of the injection tube (4), a piston rod (6) is slidably inserted in the syringe (1), a piston block (7) and the side wall of the piston block (7) are installed at one end of the piston rod (6) and tightly attached to the inner wall of the syringe (1), the connecting block (8) is fixed at one end of the piston rod (6), and an anti-suck-back mechanism (9) used for preventing the device from suck-back is arranged on the syringe (1).

2. A radiopharmaceutical injection apparatus for nuclear medicine as set forth in claim 1, wherein: the surface of the needle cylinder (1) is provided with scales.

3. A radiopharmaceutical injection apparatus for nuclear medicine as set forth in claim 1, wherein: a base (3) used for stably placing the device on a table top is fixed on the needle cylinder (1).

4. A radiopharmaceutical injection apparatus for nuclear medicine as set forth in claim 1, wherein: prevent suck-back mechanism (9) including formulating commentaries on classics piece (901) of installing on cylinder (1), it has cylinder (902) to slide to insert on commentaries on classics piece (901), the one end of cylinder (902) is fixed with three hornblocks (903), the one end of cylinder (902) is fixed with and draws piece (904), it establishes the surface at cylinder (902) to be fixed with spring (905) and spring (905) cover between commentaries on classics piece (901) and three hornblocks (903), be constructed rack (906) with three hornblocks (903) looks adaptations on piston rod (6).