CN220142156U - Medicine dissolving device - Google Patents

Abstract

The utility model relates to the technical field of medical equipment, in particular to a medicine dissolving device, which comprises a barrel, wherein a first puncture part is arranged at one end of the barrel, a piston is arranged in the barrel, a solvent is arranged in a cavity between the piston and the barrel, gas is reserved in the cavity between the piston and the barrel, one end of the barrel, which is positioned at the piston and is far away from the first puncture part, is slidably connected with a guide rod, a second puncture part and a third puncture part which are communicated and are arranged along the length direction of the barrel are arranged on the guide rod, the second puncture part points to the piston and can penetrate through the piston, and the third puncture part is arranged away from the second puncture part. The device reduces frequent extraction of liquid medicine and repeated contact of the needle point with external air during dispensing, achieves the aim that the whole dispensing process is carried out in a closed state, and reduces the pollution risk of the medicine in the dispensing process; the risk of medicament pollution caused by bottle stopper falling and cutting in the puncturing process is reduced, and the medicament is safer to use; simplifying the medicine dispensing steps of medical staff.

Description

Medicine dissolving device

Technical Field

The utility model relates to the technical field of medical equipment, in particular to a medicine dissolving device.

Background

At present, when a hospital carries out transfusion on patients, a dispensing is an essential link, and medical staff always keep the original dispensing mode. The patient can quickly solve the disease symptoms of the patient through transfusion, but other injuries can be caused to the human body during transfusion, for example, various germs in the hospital environment can be attached to the needle in the process of dispensing, and the infection is caused as the liquid medicine enters the human body.

The traditional syringe dispensing (by way of example of dispensing single powder injection) method comprises the following steps: 1. the bottle mouth of the infusion bottle faces downwards, and the needle point of the syringe for dispensing is penetrated into the infusion bottle to extract solvent (the bottle stopper is penetrated for the first time); 2. pulling out the needle point (the needle point is exposed to air for the second time) and penetrating the powder injection bottle plug to push the solvent in (the bottle plug is penetrated for the second time), and pulling out the needle point (the needle point is exposed to air for the third time); 3. shaking the powder injection bottle manually or by a machine to dissolve the liquid medicine, which is time-consuming and labor-consuming to operate (the injector is placed aside, and the needle tip may contact other objects); 4. the needle point of the injector is pierced into the powder injection bottle stopper (the bottle stopper is pierced for the third time) again, and the liquid medicine is extracted (the needle point is exposed to the air for the fourth time at the moment); 5. pushing the needle point of the syringe into the infusion bottle stopper again to mix the liquid medicine (the fourth puncture bottle stopper); 6. the syringe in the traditional dispensing mode needs to puncture the bottle stopper four times, and each puncture can possibly generate falling cutting, so that thrombus can be formed once falling cutting enters a human blood vessel; 7. the four times of needle point exposure are in the air environment with various germs in the hospital, germs can be brought into the medicine liquid through the needle point and enter the human body to cause cross infection, if one injector is used for matching a plurality of powder injections, the exposure time of the needle point and the times of needle point puncture bottle stopper can be multiplied in the medicine dissolving process; 8. the needle point of the common syringe is made of metal and is very sharp, and medical staff is also at risk of being injured in the frequent puncturing process.

The whole process of traditional dispensing needs multiple punctures, basically all adopts the metal steel needle of major diameter to carry out bottle plug puncture, and the sharp cutting face of steel needle can all carry out a cutting to the bottle plug when puncture at every turn, and the falling of cutting cuts can more or less get into human blood vessel, once get into the blood vessel and can't decompose or get rid of, can be wrapped up by blood along with the lapse of time and cause thrombus, once form the thrombus and can cause very big injury to the personal health.

Disclosure of Invention

The utility model aims to solve the defect that in the prior art, a bottle stopper needs to be pierced for many times in the dispensing process, and the probability of falling into a human blood vessel is increased.

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

the utility model provides a medicine dissolving device, includes the barrel, barrel one end is equipped with first piercing element, be equipped with the piston in the barrel, the solvent is equipped with in the cavity between piston and the barrel, leave in the cavity between piston and the barrel and be equipped with gas, the barrel is located the one end sliding connection that the piston kept away from first piercing element has the guide bar, be equipped with second piercing element, the third piercing element that are linked together and set up along barrel length direction on the guide bar, the second piercing element is directional to the piston and can run through the piston, the third piercing element deviates from the setting of second piercing element.

The gas pressure is equal to or greater than the ambient air pressure.

The first puncture element and the cylinder body are fixedly assembled or integrally formed; the guide rod is internally fixedly connected or integrally formed with a mounting seat, and the second puncture member is at least partially fixedly assembled or integrally formed with the mounting seat; the third puncture element is at least partially fixedly assembled or integrally formed with the mounting seat;

or the second puncture member and the third puncture member are integrally formed and fixedly assembled with the mounting seat.

The guide rod and the piston can be clamped through the first clamping structure; or the second puncture element and the piston can be clamped by the second clamping structure.

A limiting piece is fixedly assembled in one end of the cylinder body, which is far away from the first puncture piece, and the limiting piece can limit the movement limit position of the piston;

the limiting piece can limit the initial position of the guide rod, and/or the limiting piece can guide the movement of the guide rod.

The first puncture member comprises a sealing sleeve with elasticity, a first needle head and a first needle seat which are fixedly assembled or integrally formed, the first needle seat is provided with a first buckling part, a first limiting part and a second buckling part, the first needle seat is at least partially inserted into the cylinder body, a first buckling part which can be clamped with the second buckling part is arranged on the inner side of the cylinder body, the first limiting part can limit the depth of the first needle seat inserted into the cylinder body, the sealing sleeve is arranged on the first buckling part in a sealing manner, the sealing sleeve surrounds the first needle head, and the first needle head can penetrate through the sealing sleeve.

The piston comprises a main body part, a plurality of annular bulges are integrally formed on the outer circumference of the main body part, a first groove is formed in one end, close to the first puncture member, of the main body part, and a second groove is formed in one end, close to the second puncture member, of the main body part.

The outer circumference of one end, close to the guide rod, of the main body part is integrally formed with a third buckling part protruding outwards, and the inner side of the end part of the guide rod is provided with a fourth buckling part capable of being buckled with the third buckling part;

or the main body part is positioned in the second groove and internally protrudes with a fourth buckling part, and the second puncture member is provided with a third buckling part which can be buckled with the fourth buckling part.

The cylinder body is positioned at one end of the first puncture element and is detachably provided with a first protective shell, and the first puncture element is positioned in the first protective shell;

and/or the guide rod is positioned at one end of the third puncture element and is detachably provided with a second protective shell, and the third puncture element is positioned in the second protective shell.

One end of the guide rod, which is positioned at the third puncture member, is provided with an accommodating groove, and the accommodating groove can fix the outer diameter of the powder injection bottle opening.

The medicine dissolving device provided by the utility model has the beneficial effects that: the device reduces frequent extraction of liquid medicine and repeated contact of the needle tip with external air during dispensing, achieves the aim that the whole dispensing process is carried out in a closed state, and reduces the pollution risk of the medicine in the dispensing process; the risk of medicament pollution caused by bottle stopper falling and cutting in the puncturing process is reduced, and the medicament is safer to use; the medicine dispensing steps of medical staff are simplified, the work efficiency is improved, the risk of being injured is reduced, and the medicine liquid mixing uniformity is improved.

Drawings

FIG. 1 is a schematic structural view of a first embodiment of the present utility model;

FIG. 2 is an enlarged schematic view of the first piercing member of FIG. 1;

FIG. 3 is an enlarged schematic view of the second piercing member of FIG. 1;

FIG. 4 is an exploded view of FIG. 1;

FIG. 5 is a schematic structural view of a second embodiment of the present utility model;

FIG. 6 is an enlarged schematic view of the first piercing member of FIG. 5;

FIG. 7 is an enlarged schematic view of the second piercing member of FIG. 5;

FIG. 8 is an enlarged schematic view of the third piercing member of FIG. 5;

FIG. 9 is an exploded view of FIG. 5;

FIG. 10 is a schematic structural view of a third embodiment of the present utility model;

FIG. 11 is an enlarged schematic view of the first piercing member of FIG. 10;

FIG. 12 is an enlarged schematic view of the second piercing member of FIG. 10;

FIG. 13 is an enlarged schematic view of the third piercing member of FIG. 10;

FIG. 14 is an exploded view of FIG. 10;

FIG. 15 is a schematic structural view of a fourth embodiment of the present utility model;

FIG. 16 is an enlarged schematic view of the first piercing member of FIG. 15;

FIG. 17 is an enlarged schematic view of the second piercing member of FIG. 15;

FIG. 18 is an enlarged schematic view of the third piercing member of FIG. 15;

FIG. 19 is an exploded view of FIG. 15;

FIG. 20 is a schematic view showing the structure of a third piercing member inserted into a powder injection bottle according to a second embodiment;

FIG. 21 is a schematic view showing the structure of a solvent and gas entering a powder injection bottle according to the second embodiment;

FIG. 22 is a schematic view showing a structure of a mixed liquid and gas in a powder injection bottle entering a cylinder in a use state in a second embodiment;

fig. 23 is a schematic view showing a structure of a mixed solution injection medicine dispensing bottle in a use state in the second embodiment.

In the figure: the first protective case 1, the sealing sleeve 2, the first puncture outfit 3, the first needle holder 4, the gas 5, the cylinder 6, the solvent 7, the piston 8, the stopper 9, the second puncture outfit 10, the third puncture outfit 11, the guide rod 12, the second protective case 13, the accommodating groove 14, the first needle 3A, the first fastening portion 4A, the first stopper 4B, the second fastening portion 4C, the first fastening portion 6A, the second fastening portion 6B, the annular protrusion 8A, the first groove 8B, the second groove 8C, the third fastening portion 8D, the main body portion 8E, the fourth fastening portion 8F, the fifth fastening portion 9A, the sixth fastening portion 9B, the second stopper 9C, the second needle 10A, the second needle holder 10B, the third fastening portion 10C, the first socket portion 11A, the first insertion portion 11B, the third needle 11C, the mounting groove 11D, the fourth fastening portion 12A, the fourth fastening portion 12B, and the mounting seat 12C.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1-23, a medicine dissolving device comprises a barrel 6, a first puncture member 3 is arranged at one end of the barrel 6, a piston 8 is arranged in the barrel 6, a solvent 7 is arranged in a cavity between the piston 8 and the barrel 6, a gas 5 is reserved in the cavity between the piston 8 and the barrel 6, one end of the barrel 6, far away from the first puncture member 3, of the piston 8 is slidably connected with a guide rod 12, a second puncture member 10 and a third puncture member 11 which are communicated and arranged along the length direction of the barrel 6 are arranged on the guide rod 12, the second puncture member 10 points to the piston 8 and can penetrate through the piston 8, and the third puncture member 11 is arranged far away from the second puncture member 10.

Referring to fig. 20-23, the following steps are adopted in use:

1. referring to fig. 20, the third piercing member 11 at one end of the guide rod is directly pierced into the powder injection bottle stopper;

2. referring to fig. 21, the bottom of the powder injection bottle is upward, the guiding rod 12 of the powder injection bottle is pressed down (pushed) by the thumb of one hand, the second puncture member 10 punctures the piston 8 until the gas 5 and the solvent 7 in the cylinder impact into the powder injection bottle, and the air pressure in the bottle is increased at the moment;

3. referring to fig. 22, the thumb is loosened, and the liquid medicine automatically and reversely impacts into the cylinder under the action of the pressure in the bottle;

4. the liquid medicine in the steps 2 and 3 can be repeated for a plurality of times, and the liquid medicine can be rapidly mixed under the impact of pressure (the whole process of mixing the liquid medicine is carried out in a closed state);

5. referring to fig. 23, the bottle mouth of the infusion bottle is upward to directly pierce the bottle stopper with the first piercing element 3, the powder injection bottle is pressed down, the mixed liquid medicine is automatically pressed into the infusion bottle under the action of air pressure in the powder injection bottle, the steps 2 and 3 are repeated, and at the moment, no liquid medicine remains in the cylinder under the pushing of air (fig. 6).

6. Pulling out the first piercing member 3;

7. if one medicine dissolving device needs to be provided with a plurality of powder, the guide rod can be pulled outwards to the initial position to take off the empty bottle when the first medicine dissolving device is finished, and the operation is carried out according to the steps 1, 2 and 3;

8. and (3) after the medicine dispensing of the same medicine dissolving device is finished, a plurality of powder injection bottles are operated according to the step 6, and the medicine dispensing is finished.

The device can realize automatic sterile assembly, filling and packaging production in the production and manufacturing process; the device can be designed into different specifications according to the use requirement, and various solvents with different dosages can be filled; the device can be independently packaged for users, and can also be matched with powder injection combination packages according to dosage for use; the device reduces frequent extraction of liquid medicine and repeated contact of the needle tip with external air during dispensing, achieves the aim that the whole dispensing process is carried out in a closed state, and reduces the pollution risk of the medicine in the dispensing process; the risk of medicament pollution caused by bottle stopper falling and cutting in the puncturing process is reduced, and the medicament is safer to use; the medicine dispensing steps of medical staff are simplified, the work efficiency is improved, the risk of being injured is reduced, and the medicine liquid mixing uniformity is improved.

As an embodiment, the gas 5 has a pressure equal to or greater than the ambient pressure.

Referring to fig. 2, the first piercing element 3 is fixedly assembled or integrally formed with the barrel 6, wherein integrally formed means that a part of the structure of the first piercing element 3 is integrally formed with the barrel, for example, the first needle hub 4 is integrally formed with the barrel 6; as a fixed assembly mode, the first puncture member 3 comprises a sealing sleeve 2 with elasticity, a first needle head 3A and a first needle seat 4 which are fixedly assembled or integrally formed, the first needle seat 4 is provided with a first buckling part 4A, a first limiting part 4B and a second buckling part 4C, the first needle seat 4 is at least partially inserted into a cylinder body 6, a first buckling part 6A which can be clamped with the second buckling part 4C is arranged on the inner side of the cylinder body 6, the first limiting part 4B can limit the depth of the first needle seat 4 inserted into the cylinder body 6, the sealing sleeve 2 is arranged on the first buckling part 4A in a sealing way, the sealing sleeve 2 surrounds the first needle head 3A, and the first needle head 3A can penetrate through the sealing sleeve 2. Through the cooperation of second buckle portion 4C and first buckling parts 6A, realize the fixed assembly of first needle file 4 and barrel 6, and utilize the degree of depth in first needle file 4 of first spacing 4B restriction inserted barrel 6, play better assembly effect, seal cover 2 is fixed on first needle file 4 through first buckle portion 4A, seal cover 2 adopts elastic material such as rubber, plastics or silica gel, play sealed liquid medicine in the pressurization process of dispensing and do not leak the effect, first syringe needle 3A does not contact with the air, pollution abatement, need not take off when adding the medicine, can directly puncture against the infusion bottleneck, and can automatic spring up and protect the puncture needle point can not cause unexpected injury to the operator when extracting.

As an embodiment of the second puncture member 10, the guide rod 12 is fixedly connected or integrally formed with the mounting seat 12C, the second puncture member 10 is at least partially fixedly assembled or integrally formed with the mounting seat 12C, referring to fig. 3, the second puncture member 10 includes a fixedly assembled or integrally formed second needle 10A and a second needle seat 10B, the second needle seat 10B and the mounting seat 12C are fixedly assembled together, for example, by being clamped by means of a protrusion or a groove, or by adopting interference fit, or the second needle seat 10B and the mounting seat 12C are integrally formed as shown in fig. 17;

in the embodiment in which the third piercing member 11 is provided, the third piercing member 11 is at least partially fixedly assembled or integrally formed with the mounting base 12C; as shown in fig. 1, the third piercing element 11 is integrally formed with the mounting base 12C; or as shown in fig. 8, the third puncture element 11 is also arranged on the mounting seat 12C in a needle and needle seat mode; or referring to fig. 18, the third piercing member 11 includes an integrally formed first socket portion 11A, a first plug portion 11B, and a third needle 11C, the first socket portion 11A is sleeved on a first barrel structure of the mounting base 12C, the first plug portion 11B is inserted into a second barrel structure of the mounting base 12C, and the third piercing member 11 is integrally formed with a mounting groove 11D, an outer diameter of a powder injection bottle mouth is fixed through the mounting groove 11D, and the mounting groove 11D has the same setting function as the accommodating groove 14.

Or referring to fig. 10 and 13, the second piercing member 10 and the third piercing member 11 are integrally formed, and the second piercing member 10 and the third piercing member 11 are a double-ended needle fixedly assembled with the mounting base 12C.

The guide rod 12 and the piston 8 can be clamped through a first clamping structure; or the second piercing member 10 and the piston 8 can be engaged by a second snap-in structure. After the second needle 10A of the second puncture member 10 passes through the piston 8, the piston 8 can be buckled with the guide rod 12 or the second puncture member 10 under the pressing action, so that the piston 8 can conveniently move up and down along with the guide rod 12.

Referring to fig. 3, the piston 8 includes a main body 8E, an outer circumference of the main body 8E is integrally formed with a plurality of annular protrusions 8A, one end of the main body 8E, which is close to the first piercing member 3, is provided with a first groove 8B, one end of the main body 8E, which is close to the second piercing member 10, is provided with a second groove 8C, the annular protrusions 8A and the cylinder body achieve a sealing fit, the first groove 8B plays a role in preventing the needle tip from being exposed when the second needle 10A pierces, and the second groove 8C plays a role in guiding the second needle 10A.

Referring to fig. 3, a third fastening portion 8D protruding outwards is integrally formed on the outer circumference of the main body portion 8E near one end of the guide rod 12, a fourth fastening portion 12A capable of being fastened with the third fastening portion 8D is arranged on the inner side of the end portion of the guide rod 12, and when the guide rod is pressed down, the fourth fastening portion 12A is fastened with the third fastening portion 8D of the piston to play a role of pulling back the guide rod to drive the piston to move together;

or referring to fig. 17, the main body 8E is located in the second groove 8C and protrudes inwards to form a fourth fastening portion 8F, the second puncture member 10 has a third fastening portion 10C capable of being fastened to the fourth fastening portion 8F, and when the guide rod is pressed down, the third fastening portion 10C is fastened to the fourth fastening portion 8F of the piston, so as to pull back the guide rod to drive the piston to move together.

A limiting piece 9 is fixedly assembled in one end of the cylinder 6 far away from the first puncture piece 3, and the limiting piece 9 can limit the movement limit position of the piston 8; the limiting piece 9 can limit the initial position of the guide rod 12, and/or the limiting piece 9 can guide the movement of the guide rod 12, the guide rod 12 and the limiting piece 9 can adopt a plurality of sheet structures to be longitudinally distributed in a ring shape, the limiting piece 9 comprises a fifth buckling part 9A, a sixth buckling part 9B and a second limiting part 9C, the limiting piece 9 is buckled and connected with the cylinder 6 through the matching of the fifth buckling part 9A and the second buckling part 6B of the cylinder 6, the initial positioning effect of the guide rod 12 is realized through the matching of the sixth buckling part 9B and the fourth buckling part 12B, and the depth of the limiting piece 9 inserted into the cylinder 6 is limited through the second limiting part 9C.

Referring to fig. 1, a first protective case 1 is detachably mounted to one end of a cylinder 6 at a first penetration member 3, the first penetration member 3 is positioned in the first protective case 1, and the first penetration member 3 is protected by the first protective case 1;

and/or the guide rod 12 is detachably mounted with the second protective housing 13 at one end of the third puncture element 11, the third puncture element 11 is located in the second protective housing 13, and the third puncture element 11 is protected by the second protective housing 13 with reference to fig. 1, 5, 10 and 15.

The guide rod 12 is provided with a holding groove 14 at one end of the third puncture member 11, the holding groove 14 can fix the outer diameter of the powder injection bottle mouth, and the powder injection bottle is not easy to fall off through the holding groove 14.

In the above embodiment, the first needle, the second needle, and the third needle may be made of plastic or metal, and the solvent 7 may be a liquid capable of diluting the powder, such as water for injection or sodium chloride injection, and may be a solvent for diluting the powder, which is filled with a corresponding volume according to the specifications.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any technical solution, conception and design obtained by equivalent substitution or modification of the technical solution and the inventive concept thereof by those skilled in the art within the scope of the present utility model should be covered in the scope of the present utility model.

Claims (10)

1. The utility model provides a medicine dissolving device, its characterized in that, including barrel (6), barrel (6) one end is equipped with first piercing element (3), be equipped with piston (8) in barrel (6), solvent (7) are equipped with in the cavity between piston (8) and barrel (6), leave in the cavity between piston (8) and barrel (6) and be equipped with gas (5), barrel (6) are located the one end sliding connection that first piercing element (3) was kept away from to piston (8) has guide bar (12), be equipped with second piercing element (10), third piercing element (11) that are linked together and set up along barrel (6) length direction on guide bar (12), second piercing element (10) point to piston (8) and can run through piston (8), third piercing element (11) deviate from second piercing element (10) setting.

2. A cartridge as claimed in claim 1 wherein the gas (5) is at or above ambient pressure.

3. A cartridge according to claim 2, wherein the first piercing element (3) is fixedly assembled or integrally formed with the cartridge body (6); the guide rod (12) is internally fixedly connected or integrally formed with a mounting seat (12C), and the second puncture member (10) is at least partially fixedly assembled or integrally formed with the mounting seat (12C); the third puncture element (11) is at least partially fixedly assembled or integrally formed with the mounting seat (12C);

or the second puncture member (10) and the third puncture member (11) are integrally formed and fixedly assembled with the mounting seat (12C).

4. A cartridge as claimed in claim 3 wherein the guide rod (12) and piston (8) are adapted to be snapped together by a first snap-fit arrangement; or the second puncture element (10) and the piston (8) can be clamped by a second clamping structure.

5. A drug dissolver according to claim 3, characterized in that a limiting piece (9) is fixedly arranged in one end of the cylinder (6) far away from the first puncture piece (3), and the limiting piece (9) can limit the movement limit position of the piston (8);

the limiting piece (9) can limit the initial position of the guide rod (12), and/or the limiting piece (9) can guide the movement of the guide rod (12).

6. The medicine dissolver according to any one of claims 1-5, wherein the first puncture member (3) comprises a sealing sleeve (2) with elasticity, a first needle (3A) and a first needle seat (4) which are fixedly assembled or integrally formed, the first needle seat (4) is provided with a first buckling part (4A), a first limiting part (4B) and a second buckling part (4C), the first needle seat (4) is at least partially inserted into the cylinder body (6), a first buckling part (6A) which can be clamped with the second buckling part (4C) is arranged on the inner side of the cylinder body (6), the first limiting part (4B) can limit the depth of the first needle seat (4) inserted into the cylinder body (6), the sealing sleeve (2) is mounted on the first buckling part (4A) in a sealing way, the sealing sleeve (2) surrounds the first needle (3A), and the first needle (3A) can penetrate through the sealing sleeve (2).

7. A cartridge as claimed in any one of claims 1 to 5 wherein the piston (8) comprises a body portion (8E), the outer circumference of the body portion (8E) being integrally formed with a plurality of annular projections (8A), the end of the body portion (8E) adjacent the first piercing member (3) having a first recess (8B), the end of the body portion (8E) adjacent the second piercing member (10) having a second recess (8C).

8. The medicine dissolver according to claim 7, wherein a third buckling part (8D) protruding outwards is integrally formed on the outer circumference of one end of the main body part (8E) close to the guide rod (12), and a fourth buckling part (12A) capable of being buckled with the third buckling part (8D) is arranged on the inner side of the end part of the guide rod (12);

or the main body part (8E) is positioned in the second groove (8C) and inwards protrudes with the fourth buckling part (8F), and the second puncture member (10) is provided with a third buckling part (10C) which can be buckled with the fourth buckling part (8F).

9. A cartridge as claimed in claim 1 or 2 or 3 or 4 or 5 or 8 wherein said cartridge (6) is provided with a first protective casing (1) removably mounted at one end of a first piercing element (3), said first piercing element (3) being located within said first protective casing (1);

and/or the guide rod (12) is positioned at one end of the third puncture element (11) and is detachably provided with a second protective shell (13), and the third puncture element (11) is positioned in the second protective shell (13).

10. A drug dissolver according to claim 9, characterized in that the guide rod (12) is provided with a receiving groove (14) at one end of the third puncture member (11), and the receiving groove (14) can fix the outer diameter of the powder injection bottle mouth.