阅读说明：本技术 一种放射性药品专用注射器 (Special syringe for radiopharmaceutical ) 是由 郭昊 史永惠 于 2019-12-04 设计创作，主要内容包括：本发明涉及医学小剂量无残留注射器,尤其为方便放射性药品的专用注射器,其结构包括壳体,所述壳体的内部设置有并列连接的A管腔和B管腔,所述壳体的一端为开口状,所述A管腔和B管腔的开口端水平固定连接多个助推板,多个所述助推板分别位于所述A管腔、B管腔的一端的两侧,所述壳体的未开口端固定连接有共用注射管,所述注射管位于所述A管腔和B管腔的连接处的中间,所述A管腔和B管腔之间有平行的隔板。本发明可在注射过程中起到操作方便、利于放射职业防护、无放射性药物残留、避免放射性药物注射过程中的污染,从而达到高效使用放射性药品。(The invention relates to a medical small-dose residue-free injector, in particular to a special injector convenient for radioactive medicines. The invention has the advantages of convenient operation, contribution to radiation occupational protection, no radioactive drug residue and avoidance of pollution in the radioactive drug injection process, thereby achieving the purpose of efficiently using the radioactive drugs.)

1. The utility model provides a special syringe of radiopharmaceutical, includes casing (1), casing (1) by side-by-side connection's A pipe (4) and B pipe (10) constitute, the one end of casing (1) is the opening form, the horizontal fixedly connected with of open end of casing (1) a plurality of boost boards (9), a plurality of boost board (9) are located respectively the both sides of the one end of A pipe (4), B pipe (10), the not open end fixedly connected with injection syringe (12) of casing (1), injection syringe (12) are located the centre of the junction of A pipe (4) and B pipe (10), first through-hole (11) have been seted up to the inside one end of A pipe (4), second through-hole (14) have been seted up to the inside one end of B pipe (10), first through-hole (11), second through-hole (14) respectively with the bow-shaped opening that baffle (11) keep apart into, the two arcuate openings are commonly open to the syringe (12).

2. The syringe dedicated to radiopharmaceutical of claim 1, wherein: the inside sliding connection of A pipe (4) has first rubber piston (16), the one end middle part fixedly connected with first piston rod (5) of first rubber piston (16), first piston rod (5) are kept away from the first push pedal (6) of one end fixedly connected with of first rubber piston (16).

3. The syringe dedicated to radiopharmaceutical of claim 2, wherein: the inside sliding connection of B pipe (10) has second rubber piston (15) fixedly connected with second piston rod (8) in the middle of the one end of second rubber piston (15), second piston rod (8) are kept away from the one end fixedly connected with second push pedal (7) of second rubber piston (15).

4. A special syringe for radiopharmaceutical according to claim 3, wherein: casing (1) is located one side cover at A pipe (4) place is equipped with lead shielding cover (3), there is not the end plate at lead shielding cover (3) both ends, and the active link of A pipe (4) and lead shielding cover (3) can be fixed by anti-skidding screw rod (2).

5. The syringe dedicated to radiopharmaceutical of claim 4, wherein: square draw-in groove (13) have all been seted up to the one end both sides of lead housing (3), square draw-in groove (13) card is established outside boosting board (9) of A pipe (4) one side.

6. The syringe dedicated to radiopharmaceutical of claim 5, wherein: the middle part of the side surface of the lead shielding sleeve (3) is in threaded connection with an anti-skidding screw rod (2).

7. The syringe dedicated to radiopharmaceutical of claim 6, wherein: the volume requirements of the A pipe (4) and the B pipe (10) can be set as follows according to clinical requirements: 1 ml: 2.5ml, 1 ml: 5ml, 2 ml: 5ml, 2.5 ml: 5ml, 5 ml: 10ml and the like, and the injection tube (12) has the size of a standard medicine outlet nozzle of the injector.

8. A special syringe for radiopharmaceutical is characterized by comprising the following steps:

1. firstly, puncture and place an indwelling needle on the selected vein; injecting appropriate amount of water for injection or normal saline, checking the smoothness and tightness (whether there is drug extravasation) of the intravenous injection channel, then sealing the indwelling needle for standby,

2, sleeving a lead shielding tube (3) on the tube A (4), screwing down the anti-skid screw (2), removing a rubber cap of the injection tube (12), pushing a second push plate (7) to drive a second piston rod (8), discharging air in the tube B (10) by using a second rubber piston (15), pumping water for injection or physiological saline into the tube B (10) for later use,

3. inserting the bottle containing the radioactive drug into the long-tail indwelling needle, then putting the bottle containing the radioactive drug into a well type activity meter for measuring and recording the total activity,

4. the first push plate (6) is pushed to drive the first piston rod (5), so that the first rubber piston (16) exhausts the air in the tube A (4), the long-tail indwelling needle is connected with the injection tube (12), the radiopharmaceutical is extracted into the tube A through the tail part of the long-tail indwelling needle, the activity measurement value is reduced, the radiopharmaceutical is extracted slightly more than enough amount of the radiopharmaceutical (the empirical value is 0.1-0.5mCi, which is related to the radioactivity/volume),

5. push out proper amount of physiological saline in the tube B (10), wash the long-tail indwelling needle, simultaneously record the activity reduction value of the recording and playing radiopharmaceutical bottle,

6. the injection tube (12) is butted with a human body remaining needle, after the radioactive drug in the tube A (4) is completely injected, the normal saline in the tube B (10) is injected to wash the remaining needle, the venous remaining needle and the injector are removed, the cotton swab pressurizes the venipuncture point, the injection process of the human body is finished, the injection time is recorded,

7. the double-cavity syringe and the human body remaining needle are removed, the anti-slip screw (2) is loosened to remove the lead shielding sleeve (3), and the double-cavity syringe and the human body remaining needle are placed into a radioactive waste barrel for shielding.

Technical Field

The invention relates to a medical small-dose residue-free injector, in particular to a special injector for convenient radiopharmaceuticals.

Background

The injection of radiopharmaceuticals is a critical step in nuclear medicine diagnosis and therapy. The injection of the radiopharmaceutical requires a small amount of residual drug and a short injection process. The prior common disposable syringe can not meet the requirements. Therefore, a new radiopharmaceutical syringe is needed.

Conventional nuclear medicine diagnosis and treatment both rely on high-efficiency radiopharmaceutical injections. The injection process is briefly described as follows:

firstly, puncture and place an indwelling needle on the selected vein; injecting proper amount of water for injection or normal saline, checking the smoothness and the tightness (whether medicine is extravasated) of the intravenous injection channel, and then sealing the indwelling needle for standby.

(1) An appropriate amount of radiopharmaceutical is withdrawn.

(2) And placing the syringe containing the radiopharmaceutical into a well type activity meter to measure the full needle activity and record the activity value.

(3) The syringe containing the radiopharmaceutical is removed and fitted with a lead sheath.

(4) And carrying out human body blood vessel injection by butting the indwelling needle.

(5) And (4) withdrawing the empty syringe from the indwelling needle, removing the lead shielding sleeve, and putting the empty syringe into the well-type activity meter again for measuring and recording the residual activity of the empty needle.

(6) And taking another syringe which extracts the physiological saline in advance and carrying out butt injection with the remaining needle for the third time, and injecting the radiopharmaceutical in the hose in the remaining needle into the blood vessel of the human body.

(7) The remaining needle and the physiological saline syringe were removed.

(8) And (4) placing the hollow needle in the well type activity meter into a radioactive waste barrel for shielding.

(9) And subtracting the residual activity value of the empty needle from the activity value of the full needle to calculate the actual effective injection dose.

The injection process is complicated, and has the disadvantages that ① takes a long time, the radiation exposure risk of injection personnel is increased, ② increases the chance of radioactive contamination, ③ has a large residual drug amount, radioactive medicines cannot be efficiently and fully used, and the injection time of a ④ patient is prolonged.

Some radiopharmaceuticals require rapid bolus injections, and use a concise injection procedure:

(1) an appropriate amount of radiopharmaceutical is withdrawn.

(2) And (3) placing the syringe containing the radiopharmaceutical in a well type activity meter to measure and record the activity of the full needle.

(3) The syringe containing the radiopharmaceutical is removed and fitted with a lead sheath.

(4) And carrying out human body vascular injection on the target blood vessel.

(5) And (4) removing the empty syringe, removing the lead shielding sleeve, and putting the empty syringe into the well-type activity meter again for measuring and recording the residual activity of the empty syringe.

(6) And (4) placing the hollow needle in the well type activity meter into a radioactive waste barrel for shielding.

(7) And subtracting the residual activity value of the empty needle from the activity value of the full needle to calculate the actual effective injection dose.

Although the simple operation meets the technical requirement of rapid bolus injection, the disadvantages of increased radiation exposure risk of injection personnel due to prolonged ① time consumption, increased chance of radioactive contamination due to ②, and incapability of efficiently and fully using radioactive medicines due to larger ③ residual medicine amount exist.

Disclosure of Invention

The present invention is directed to a syringe dedicated for radiopharmaceutical, which solves the above problems of the prior art.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a special syringe of radiopharmaceutical, includes the casing, the casing comprises A pipe and the B pipe of side by side connection, the one end of casing is the opening form, a plurality of boosting boards of the horizontal fixedly connected with of open end of casing, it is a plurality of the boosting board is located respectively the both sides of the one end of A pipe, B pipe, the not open end fixedly connected with injection syringe of casing, the injection syringe is located the centre of the junction of A pipe and B pipe, first through-hole has been seted up to the inside one end of A pipe, the second through-hole has been seted up to the inside one end of B pipe, first through-hole, second through-hole respectively with the bow-shaped opening that the baffle was kept apart into. The two arcuate openings collectively open into the syringe.

Furthermore, the inside sliding connection of A pipe has first rubber piston, the one end middle part fixedly connected with first piston rod of first rubber piston, first piston rod is kept away from the first push pedal of one end fixedly connected with of first rubber piston.

Furthermore, the inside sliding connection of B pipe has second rubber piston fixedly connected with second piston rod in the middle of the one end of second rubber piston, the second piston rod is kept away from the one end fixedly connected with second push pedal of second rubber piston.

Furthermore, the shell is located one side cover that A pipe is located is equipped with the lead shielding cover, there is not the end plate at lead shielding cover both ends, and the active link of A pipe and lead shielding cover can be fixed by anti-skidding screw rod.

Furthermore, square clamping grooves are formed in two sides of one end of the lead shielding sleeve, and the square clamping grooves are clamped outside the boosting plate on one side of the A pipe.

Furthermore, the middle part of the side surface of the lead shielding sleeve is in threaded connection with an anti-skidding screw rod.

Further, the volume requirements of the tube A and the tube B can be set as follows according to clinical needs: 1 ml: 2.5ml, 1 ml: 5ml, 2 ml: 5ml, 2.5 ml: 5ml, 5 ml: 10ml and the like, and the injection tube has the standard size of a medicine outlet nozzle of the injector.

A special syringe for radiopharmaceutical comprises the following steps:

(1) firstly, puncture and place an indwelling needle on the selected vein; injecting a proper amount of water for injection or normal saline, checking the smoothness and the tightness of the injection of the intravenous injection channel, and then sealing the indwelling needle for later use.

(2) The A pipe is sleeved with a lead shielding pipe and the anti-skid screw is screwed down. And (3) removing the rubber cap of the injection tube, pushing the second push plate, driving the second piston rod to enable the second rubber piston to discharge air in the tube B, and then pumping 5ml of physiological saline into the tube B for later use.

(3) The vial containing the radiopharmaceutical is inserted into a long-tailed indwelling needle, and the vial containing the radiopharmaceutical is then placed into a well-type activity meter for total activity measurement and recording.

(4) Promote first push pedal, drive first piston rod for first rubber piston is with the intraductal air escape of A, keeps somewhere the needle with the syringe connection long tail, keeps somewhere the afterbody extraction radiopharmaceutical of needle to A intraductal through long tail, and the activity measured value descends, extracts slightly more than sufficient medicine.

(5) The normal saline in the tube B is pushed out to a proper amount to flush the long-tail indwelling needle, and meanwhile, the activity reduction value of the radiopharmaceutical bottle is recorded and played.

(6) And (3) butting the injection tube with the human body indwelling needle, completely injecting the radioactive drug in the tube A, then injecting the physiological saline in the tube B to flush the indwelling needle, removing the vein indwelling needle and the injector, pressurizing the vein puncture point by using a cotton swab, finishing the human body injection process, and recording the injection time.

(7) And (3) removing the double-cavity syringe and the human body remaining needle, loosening the anti-skidding screw rod to remove the lead shielding sleeve, and placing the double-cavity syringe and the human body remaining needle into a radioactive waste barrel for shielding.

Drawings

Fig. 1 is a perspective view of the present invention.

Fig. 2 is a bottom view of the present invention.

Fig. 3 is a schematic diagram of an exploded structure of a part of the components of the present invention.

Fig. 4 is a schematic structural diagram of the lead shielding sleeve of the present invention.

FIG. 5 is a schematic view of the interior of two lumens within the housing of the present invention.

In the figure: 1. a housing; 2. an anti-slip screw; 3. a lead shielding sleeve; 4. a pipe A; 5. a first piston rod; 6. a first push plate; 7. a second push plate; 8. a second piston rod; 9. a boosting plate; 10. a pipe B; 11 a first through hole; 12. an injection tube; 13. a square clamping groove; 14. a second through hole; 15. a second rubber piston; 16. a first rubber piston.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-5, the present invention provides a technical solution:

the utility model provides a special syringe of radiopharmaceutical, includes casing 1, casing 1 comprises A pipe 4 and B pipe 10 that are connected side by side, the one end of casing 1 is the opening form, a plurality of boost plates 9 of the horizontal fixedly connected with of open end of casing 1, it is a plurality of boost plate 9 is located respectively the both sides of the one end of A pipe 4, B pipe 10, the not open end fixedly connected with syringe 12 of casing 1, syringe 12 is located the centre of the junction of A pipe 4 and B pipe 10, first through-hole 11 has been seted up to the inside one end of A pipe 4, second through-hole 14 has been seted up to the inside one end of B pipe 10, first through-hole 11, second through-hole 14 respectively with the bow-shaped opening that baffle 11 kept apart into. The two arcuate openings collectively open into the syringe 12.

The inside sliding connection of A pipe 4 has first rubber piston 16, the one end middle part fixedly connected with first piston rod 5 of first rubber piston 16, first piston rod 5 is kept away from the first push pedal 6 of one end fixedly connected with of first rubber piston 16.

The inside sliding connection of B pipe 10 has second rubber piston 15 fixedly connected with second piston rod 8 in the middle of the one end of second rubber piston 15, second piston rod 8 keeps away from the one end fixedly connected with second push pedal 7 of second rubber piston 15.

Casing 1 is located one side cover at A pipe 4 place is equipped with lead shielding cover 3, there is not the end plate at 3 both ends of lead shielding cover, and A pipe 4 can be fixed by anti-skidding screw rod 2 with the active link of lead shielding cover 3, and wherein, lead shielding cover 3 is for shielding the radiation that produces behind the extraction radiopharmaceutical of A lumen 4.

Square draw-in groove 13 has all been seted up to the one end both sides of lead shielding cover 3, square draw-in groove 13 card is established outside the boosting board 9 of A pipe 4 one side.

The middle part of the side surface of the lead shielding sleeve 3 is in threaded connection with an anti-slip screw rod 2, wherein the anti-slip screw rod 2 can fix the lead shielding sleeve 3 outside the shell 1 again, and accidental slipping in the reusing process is prevented.

The volume requirements of the tube A4 and the tube B10 can be set as follows according to clinical requirements: 1 ml: 2.5ml, 1 ml: 5ml, 2 ml: 5ml, 2.5 ml: 5ml, 5 ml: 10ml and the like, and the injection tube 12 has the standard size of a medicine outlet nozzle of the injector, wherein the injection tube 12 has the standard size and can be butted with a long-tail remaining needle and an indwelling needle.

A special syringe for radiopharmaceutical comprises the following steps:

(1) firstly, puncture and place an indwelling needle on the selected vein; injecting proper amount of water for injection or normal saline, checking whether the medicine is extravasated in the smoothness and the tightness of the intravenous injection channel, and then sealing the indwelling needle for standby.

(2) The A pipe 4 is sleeved with the lead shielding pipe 3 and the anti-skid screw 2 is screwed down. The rubber cap of the injection tube 12 is removed, the second push plate 7 is pushed to drive the second piston rod 8, so that the second rubber piston 15 discharges the air in the tube B10, and 5ml of physiological saline is pumped into the tube B10 for later use.

(3) The vial containing the radiopharmaceutical is inserted into a long-tailed indwelling needle, and the vial containing the radiopharmaceutical is then placed into a well-type activity meter for total activity measurement and recording.

(4) The first push plate 6 is pushed to drive the first piston rod 5, so that the first rubber piston 16 exhausts the air in the tube A4, the injection tube 12 is connected with the long-tail indwelling needle, the radiopharmaceutical is extracted from the tail part of the long-tail indwelling needle into the tube A, the activity measurement value is reduced, and the extracted radiopharmaceutical slightly exceeds the empirical value of the adequate radiopharmaceutical by 0.1-0.5mCi, which is related to the activity/volume.

(5) The normal saline in the tube B10 is pushed out by a proper amount to wash the long-tail indwelling needle, and meanwhile, the activity reduction value of the radiopharmaceutical bottle is recorded and played.

(6) The injection tube 12 is butted with a human body remaining needle, the radiopharmaceutical in the tube A4 is completely injected, then the normal saline in the tube B10 is injected to wash the remaining needle, the venous remaining needle and the injector are removed, the cotton swab pressurizes the venipuncture point, the injection process of the human body is finished, and the injection time is recorded.

(7) The double-cavity syringe and the human body remaining needle are removed, the anti-skid screw 2 is loosened to remove the lead shielding sleeve 3, and the double-cavity syringe and the human body remaining needle are placed into a radioactive waste barrel for shielding.

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.