阅读说明：本技术 一种放射性药物注射装置 (Radiopharmaceutical injection device ) 是由 范冬梅 *** 于 2020-07-29 设计创作，主要内容包括：本发明公开了一种放射性药物注射装置,属于药物注射技术领域。该注射装置注射管的铅套筒包括第一筒体和第二筒体；第一筒体和第二筒体的对接面可拆卸连接构成用于容纳注射管的容纳体,第二筒体的外端部还设有用于针头连接管伸出的第一通孔,第一筒体上设有第二通孔；管体设在铅套筒内部,第一活塞杆的一端与管体内部的第一活塞连接,第一活塞杆的另一端自第二通孔穿出设在第一筒体的外部,注射管能在第一筒体和第二筒体构成的容纳体内沿第一筒体和第二筒体长度方向移动。本发明的注射装置操作步骤简单,耗时较短,降低了操作着的辐射风险。(The invention discloses a radiopharmaceutical injection device, and belongs to the technical field of radiopharmaceutical injection. The lead sleeve of the injection tube of the injection device comprises a first barrel and a second barrel; the butt joint surfaces of the first barrel and the second barrel are detachably connected to form an accommodating body for accommodating an injection tube, the outer end part of the second barrel is also provided with a first through hole for extending a needle head connecting pipe, and the first barrel is provided with a second through hole; the body is established inside the plumbous sleeve, and the one end and the inside first piston connection of body of first piston rod, the outside of establishing at first barrel is worn out from the second through-hole to the other end of first piston rod, and the syringe can move along first barrel and second barrel length direction in the holding that first barrel and second barrel constitute. The injection device provided by the invention has the advantages of simple operation steps and short time consumption, and reduces the radiation risk during operation.)

1. A radiopharmaceutical injection device comprises an injection tube (1) and a lead sleeve (2), wherein the injection tube (1) comprises a tube body, one end of the tube body is connected with a needle connecting tube (11), a first piston (12) and a first piston rod (13) connected with the first piston (12) are arranged in the injection tube (1), and the radiopharmaceutical injection device is characterized in that the lead sleeve (2) comprises a first barrel body (21) and a second barrel body (22); the butt joint surfaces of the first barrel (21) and the second barrel (22) are detachably connected to form an accommodating body for accommodating the injection tube (1), a first through hole for extending the needle head connecting tube (11) is further formed in the outer end portion of the second barrel (22), and a second through hole is formed in the first barrel (21);

the body is established inside plumbous sleeve (2), and the one end and the inside first piston (12) of body of first piston rod (13) are connected, and the outside of establishing in first barrel (21) is worn out from the second through-hole to the other end of first piston rod (13), syringe (1) can be in first barrel (21) and the internal first barrel (21) and the second barrel (22) length direction removal of following of holding that second barrel (22) constitute.

2. The radiopharmaceutical injection apparatus as set forth in claim 1, wherein the first barrel (21) and the second barrel (22) are each of a rectangular structure, the abutting surfaces of the first barrel (21) and the second barrel (22) are slidably connected in a vertical direction, the lead sleeve (2) further comprises a third barrel (23), the third barrel (23) is sleeved outside the first barrel (21) and the second barrel (22), and the third barrel (23) is movable along the length direction of the first barrel (21) and the second barrel (22) to or from the joint of the first barrel (21) and the second barrel (22).

3. A radiopharmaceutical injection apparatus as set forth in claim 2 wherein said first barrel (21) is provided with a dovetail groove and said second barrel (22) is provided with a slider, said slider being slidably connected to said dovetail groove.

4. A radiopharmaceutical injection apparatus as set forth in claim 2, characterized in that the end of the syringe (1) remote from the needle connecting tube (11) is provided with a second piston (4), said second piston (4) being connected to a second piston rod (5);

a channel for the first piston rod (13) to penetrate out is arranged in the second piston rod (5) along the rod length direction, and the outer end of the first piston rod (13) is positioned outside the second piston rod (5).

5. A radiopharmaceutical injection apparatus as set forth in claim 4, characterized in that the outer end of the first piston rod (13) is also provided with a first push plate (14), and the outer end of the second piston rod (5) is connected to a second push plate (6).

6. A radiopharmaceutical injection apparatus as set forth in claim 2 wherein a pull rod (7) is further attached to the outer wall of said second barrel (22), and an extension plate (8) is provided on said first barrel (21), said pull rod (7) being slidably connected to the extension plate (8) for separating or connecting the second barrel (22) from or to the first barrel (21).

7. A radiopharmaceutical injection apparatus as set forth in claim 1, characterized in that said first piston (12) is provided with an extrusion member (9) matching the needle connecting tube (11), said extrusion member (9) being capable of extending into the needle connecting tube (11) to extrude the residual drug in the needle connecting tube (11).

8. A radiopharmaceutical injection apparatus as set forth in claim 5, characterized in that said third barrel (23) is connected to a second pusher (6).

Technical Field

The invention relates to the technical field of medicine injection, in particular to a radioactive medicine injection device.

Background

With the widespread use of radioisotopes in the medical field and the widespread acceptance of the therapeutic effects of radioisotopes, nuclear medicine has gradually become a specialized subject that is slowly accepted by the medical community. The development of nuclear medicine is one of the important signs of medical modernization, and a new way of medical treatment is initiated, and meanwhile, a new way is provided for related medical research and development.

The positive single photon emission computed tomography detection is through the radioactive ray scanning imaging emitted by a radioactive labeling medicine in a patient body, intravenous injection of the radioactive medicine is the most common administration mode, an operator needs to make radiation protection when injecting the radioactive medicine, the injection process is accurately and quickly completed so as to reduce radiation to the operator, the particularity of the radioactive medicine lies in that the radioactive medicine has a half-life period, some medicine half-life periods are very short, the particularity of the radioactive medicine prevents the radioactive medicine from adopting a conventional injector, the radiation protection is needed when sucking the radioactive medicine, the injection of the radioactive medicine is injection with dose, therefore, activity detection is needed before and after injection, and the actual effective injection dose is accurately calculated through the activity detection of the injector before and after injection; when the activity detection is performed before injection, generally, the injector is firstly placed in the activity detection equipment for activity detection, a lead sleeve is installed after the detection, if the lead sleeve and the injector are troublesome to install, the time of a medicine in the injector is prolonged due to complicated operation, and the medicine is easy to decay; in the prior art, an injection device is usually used for making safety protection, the installation and the separation of an injector and a lead sleeve are troublesome, and the medicament is easy to decay due to complicated operation.

Disclosure of Invention

It is an object of the present invention to overcome the problems of the prior art and to provide a radiopharmaceutical injection apparatus.

The invention provides a radiopharmaceutical injection device, which comprises an injection tube and a lead sleeve, wherein the injection tube comprises a tube body, one end of the tube body is connected with a needle head connecting tube, a first piston and a first piston rod connected with the first piston are arranged in the injection tube, and the lead sleeve comprises a first barrel and a second barrel; the butt joint surfaces of the first barrel and the second barrel are detachably connected to form an accommodating body for accommodating an injection tube, the outer end part of the second barrel is also provided with a first through hole for extending a needle head connecting tube, and the first barrel is provided with a second through hole;

the body is established inside the plumbous sleeve, and the one end and the inside first piston connection of body of first piston rod, the outside of establishing at first barrel is worn out from the second through-hole to the other end of first piston rod, the syringe can move along first barrel and second barrel length direction in the holding that first barrel and second barrel constitute.

Preferably, first barrel and second barrel are the rectangle structure, the butt joint face of first barrel and second barrel is along vertical direction sliding connection, the lead sleeve still includes the third barrel, the outside at first barrel and second barrel is established to the third barrel cover, and the third barrel can move to the junction of first barrel and second barrel or move away from the junction of first barrel and second barrel along the length direction of first barrel and second barrel.

Preferably, the first cylinder is provided with a dovetail groove, the second cylinder is provided with a sliding block, and the sliding block is connected with the dovetail groove in a sliding manner.

Preferably, a second piston is arranged at the end part of the injection tube far away from the needle head connecting tube, and the second piston is connected with a second piston rod;

and a channel for the first piston rod to penetrate out is arranged in the second piston rod along the rod length direction, and the outer end part of the first piston rod is positioned outside the second piston rod.

Preferably, the outer end of the first piston rod is further provided with a first push plate, and the outer end of the second piston rod is connected with a second push plate.

Preferably, the outer wall of the second cylinder is further connected with a traction rod, the first cylinder is provided with an extension plate, and the traction rod is in sliding connection with the extension plate and used for separating or connecting the second cylinder and the first cylinder.

Preferably, the first piston is provided with an extrusion piece matched with the needle connecting pipe, and the extrusion piece can extend into the needle connecting pipe to extrude residual medicine in the needle connecting pipe.

Preferably, the third cylinder is connected with the second push plate.

Compared with the prior art, the invention has the beneficial effects that: according to the injection device, the first barrel body and the second barrel body are detachably connected, so that the first barrel body and the second barrel body are quickly connected and separated, the operation is simple and convenient, the time is saved, and the drug decay caused by complex operation is avoided; use the injection device of this application to realize that operation process and activity detection process all need not to go to contact the syringe or be close to the syringe with the hand, and all operations can be accomplished at the outer tip of first barrel, and the radioactivity protective effect is better.

According to the invention, the first barrel, the second barrel and the third barrel are matched with each other, so that rapid non-contact operation is realized, an operator does not need to directly contact the lead sleeve and the injection tube with hands, the safety protection is higher, and all the operations can be finished at the outer end of the injection device.

In order to avoid the influence on the actual effective injection metering caused by the praise in the needle connecting pipe after the liquid medicine is injected, the extrusion rod is arranged in the piston rod, so that the extrusion rod can extend into the needle connecting pipe after the piston reaches the end part of the injection pipe and is limited to move continuously, the liquid medicine in the extrusion rod can continuously enter the needle, and the accuracy of the liquid medicine injection amount is realized.

Drawings

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

fig. 2 is a second structural schematic diagram of the present invention.

Description of reference numerals:

1. the injection syringe comprises a syringe, 11, a needle connecting pipe, 12, a first piston, 13, a first piston rod, 14, a first push plate, 2, a lead sleeve, 21, a first cylinder, 22, a second cylinder, 23, a third cylinder, 4, a second piston, 5, a second piston rod, 6, a second push plate, 7, a traction rod, 8, an extension plate and 9, and an extrusion piece.

Detailed Description

Detailed description of the preferred embodimentsthe following detailed description of the present invention will be made with reference to the accompanying drawings 1-2, although it should be understood that the scope of the present invention is not limited to the specific embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

The invention provides a radiopharmaceutical injection device, which comprises an injection tube 1 and a lead sleeve 2, wherein the injection tube 1 comprises a tube body, one end part of the tube body is connected with a needle head connecting tube 11, a first piston 12 and a first piston rod 13 connected with the first piston 12 are arranged in the injection tube 1, and the lead sleeve 2 comprises a first barrel 21 and a second barrel 22; the butt joint surfaces of the first barrel 21 and the second barrel 22 are detachably connected to form an accommodating body for accommodating the injection tube 1, the outer end part of the second barrel 22 is also provided with a first through hole for extending the needle connecting tube 11, and the first barrel 21 is provided with a second through hole;

the body is established inside plumbous sleeve 2, and the one end of first piston rod 13 is connected with the inside first piston 12 of body, and the other end of first piston rod 13 is worn out from the second through-hole and is established in the outside of first barrel 21, syringe 1 can move along first barrel 21 and second barrel 22 length direction in the holding body that first barrel 21 and second barrel 22 constitute.

In the above embodiment, the first cylinder 21 and the second cylinder 22 are detachably connected, the tube body is placed in the accommodating body formed by the first cylinder 21 and the second cylinder 22, and the injection tube is placed in the accommodating body, so that the injection tube can be well protected.

During the use, earlier separate first barrel 21 and second barrel 22, then arrange injection tube 1 in first barrel 21, absorb the medicine, need carry out the activity after the medicine absorption and detect, release injection tube 1 from first barrel 21 in and put into activity check out test set and detect, after detecting, reset injection tube 1 to first barrel 21 in, then be connected second barrel 22 and first barrel 21, remove injection tube 1 and make injection tube 1's syringe needle connecting pipe 11 can wear out from first through-hole, can carry out the medicine injection after docking with the syringe needle of keeping somewhere.

After injection, the indwelling needle is separated from the needle connecting pipe 11, the injection tube 1 is moved into the first barrel 21, the second barrel 22 is separated from the first barrel 21, the injection tube 1 is moved out, activity detection is carried out again, and the effective injection dosage is calculated.

It should be noted that the syringe 1 can be slidably connected to the inside of the first cylinder 21, and the end connection can extend to the outside of the first cylinder 21, so as to facilitate the movement of the syringe 1 from the inside of the first cylinder 21 or the movement of the syringe 1 into the inside of the first cylinder 21 by external operation.

Wherein, first barrel 21 and second barrel 22 are the rectangle structure, the butt joint face of first barrel 21 and second barrel 22 is along vertical direction sliding connection, lead sleeve 2 still includes third barrel 23, the outside at first barrel 21 and second barrel 22 is established to third barrel 23 cover, and third barrel 23 can move to the junction of first barrel 21 and second barrel 22 or move away from the junction of first barrel 21 and second barrel 22 along the length direction of first barrel 21 and second barrel 22.

The first cylinder 21 is provided with a dovetail groove, the second cylinder 22 is provided with a sliding block, and the sliding block is connected with the dovetail groove in a sliding mode. The dislocation through first barrel 21 and second barrel 22 realizes separation between them, and third barrel 23 not only can carry on spacingly to first barrel 21 and second barrel 22, can cover the joint line of first barrel 21 and second barrel 22 moreover, improves the safety in protection.

In order to more conveniently realize the movement of the syringe 1 in the first cylinder 21, as another embodiment, a second piston 4 is arranged at the end of the syringe 1 far away from the needle connecting tube 11, and the second piston 4 is connected with a second piston rod 5;

a passage for the first piston rod 13 to penetrate out is arranged in the second piston rod 5 along the rod length direction, and the outer end part of the first piston rod 13 is positioned outside the second piston rod 5.

Wherein, the outer end of the first piston rod 13 is further provided with a first push plate 14, and the outer end of the second piston rod 5 is connected with the second push plate 6.

In order to avoid the need for an operator to manually separate the first cylinder 21 and the second cylinder 22, which may be damaged by radiation during the operation, a drawbar 7 is further connected to an outer wall of the second cylinder 22, an extension plate 8 is provided on the first cylinder 21, and the drawbar 7 is slidably connected to the extension plate 8 for separating or connecting the second cylinder 22 and the first cylinder 21. The displacement change of the end part far away from the connecting end of the second cylinder 22 and the first cylinder 21 on the extension plate 8 through the traction rod 7 is realized, the separation and the connection of the second cylinder 22 and the first cylinder 21 are realized, the operation is very convenient, and the safety is higher.

In order to avoid the problem that the injection dosage is insufficient due to incomplete medicine injection and needs to be injected again, the first piston 12 is provided with the extrusion piece 9 matched with the needle connecting pipe 11, and the extrusion piece 9 can extend into the needle connecting pipe 11 to extrude the residual medicine in the needle connecting pipe 11.

Wherein, the third cylinder 23 is connected with the second push plate 6. The purpose is to enable the third cylinder 23 and the injection tube 1 to move synchronously, and the operation is more convenient.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.