Liquid transfer device

Abstract

The utility model belongs to the technical field of liquid medicine transfer, and discloses a liquid medicine transfer device, including a pipette main part and an insertion pin, wherein the interior of the pipette main part is hollow, and corresponding pin insertion ports are provided at the upper and lower ends of the pipette main part; the insertion pin is arranged through the pipette main part, and the two ends of the insertion pin extend from the pin insertion ports at the upper and lower ends of the pipette main part respectively, and the size of the pin insertion port is adapted to the insertion pin, and the insertion pin is hollow and through; the upper and lower ends of the pipette main part are also provided with pipette ports, and the pipette ports are located on the side wall of the pipette main part; wherein the middle position of the pipette main part is deformable. The liquid medicine transfer device of the utility model, on the one hand, because the insertion pin extends to above the liquid level of the medicine bottle, the internal space of the insertion pin can be used for air circulation between the upper and lower medicine bottles, and on the other hand, because the middle position of the pipette main part is deformable, pressure can be applied to the middle of the pipette main part to drive the transfer of liquid medicine.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid medicine transfer, in particular to a liquid medicine transfer device. Background Art

[0002] In the medical field, during clinical treatment, there is usually a need for dispensing medicines, and the existing dispensing methods use disposable injection needles as the main equipment. For example, when the target drugs to be dispensed are all liquids, a disposable injection needle is used to aspirate the first target liquid and then inject it into the medicine bottle where the second target liquid is located; when the target drug to be dispensed is a mixture of liquid and solid powder, a disposable injection needle is used to aspirate a certain dose of the target liquid and then inject it into the medicine bottle where the target solid powder is located. After the solid powder is dissolved in the liquid, the disposable injection needle is used to aspirate the mixed liquid and re-inject it into the medicine bottle where the target liquid is located; under certain requirements, when the target drugs to be dispensed are all liquids, at least two aspiration actions are also required. However, the multiple puncture and aspiration actions using a disposable injection needle are cumbersome and inefficient, and the multiple puncture and aspiration actions increase the possibility of external contamination.

[0003] In order to solve the above problems, Chinese patent (CN215193770U) discloses a pressure self-balancing gravity pipette, and specifically discloses "including an infusion end needle and an outer closed sleeve, the outer closed sleeve wraps part of the infusion end needle to form a closed space, and the infusion end needle has a longitudinal through hole inside, and there is a semi-through hole parallel to it from both ends to the middle". Although the above patent solves the problem of cumbersome procedures and low efficiency, and reduces the puncture action to reduce external pollution; however, when the above pressure self-balancing gravity pipette is actually used, if it is necessary to perform two drug liquid transfer actions, that is, after completing the first drug liquid transfer, the above pressure self-balancing gravity pipette needs to be inverted to complete the second drug liquid transfer. After the above pressure self-balancing gravity pipette is inverted, the drug liquid accumulates in the outer closed sleeve, and the drug liquid transfer cannot be achieved by gravity alone. Utility Model Content

[0004] The utility model aims to provide a medicine liquid transfer device which is conducive to realizing secondary medicine liquid transfer.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] The utility model discloses a liquid medicine transfer device, comprising: a liquid transfer main part, the interior of the liquid transfer main part is hollow, and corresponding pin insertion ports are arranged at the upper and lower ends of the liquid transfer main part;

[0007] An insertion needle, the insertion needle is arranged through the pipetting main part, the two ends of the insertion needle extend from the insertion needle openings at the upper and lower ends of the pipetting main part respectively, and the size of the insertion needle opening is adapted to the insertion needle, and the insertion needle is hollow and through;

[0008] The upper and lower ends of the liquid transfer main part are also provided with liquid transfer ports, and the liquid transfer ports are located on the side wall of the liquid transfer main part;

[0009] Wherein, the middle position of the liquid transfer main component is deformable.

[0010] Preferably, the main pipetting part comprises a liquid storage part and a pipetting part, the pipetting part is respectively located at the upper and lower ends of the liquid storage part, the needle insertion port and the pipetting port are both arranged on the pipetting part, and the liquid storage part is deformable.

[0011] Preferably, it further comprises an inserting and holding portion, and the inserting and holding portion is arranged on the outside of the liquid storage portion.

[0012] Preferably, the inserting portion comprises an inserting member, and a plurality of the inserting members are circumferentially arranged around the liquid storage portion.

[0013] Preferably, the inserting and holding part further comprises a rotating member, the rotating member is sleeved on the liquid storage part, and the inserting and holding part is connected to the rotating member so as to rotate relative to the liquid transfer main part through the rotating member.

[0014] Preferably, the liquid storage portion is provided with a rotation groove, and the rotating member is located in the rotation groove.

[0015] Preferably, the rotating members include two, which are respectively located at the upper and lower ends of the liquid storage portion, and the two ends of the inserting member are respectively connected to the two rotating members.

[0016] Preferably, the size of the pipetting part is gradually reduced from an end close to the liquid storage part to an end away from the liquid storage part.

[0017] Preferably, the plurality of pipetting ports are arranged on the peripheral side of the pipetting portion.

[0018] Preferably, the pin is provided with an exchange hole, and the pin is connected with the interior of the pipetting main component through the exchange hole.

[0019] Beneficial effects of the utility model:

[0020] The liquid medicine transfer device of the utility model, on the one hand, because the insertion needle extends above the liquid surface of the medicine bottle, the internal space of the insertion needle can be used for air circulation between the upper and lower medicine bottles; on the other hand, because the middle position of the liquid transfer main part can be deformed, pressure can be applied to the middle part of the liquid transfer main part to drive the liquid medicine transfer. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the Chinese medicine liquid transfer device of the utility model;

[0022] Figure 2 Yes Figure 1 A partial structural schematic diagram of a liquid medicine transfer device is shown;

[0023] Figure 3 Yes Figure 1 A partial structural schematic diagram of a liquid medicine transfer device is shown;

[0024] Figure 4 Yes Figure 1 A partial structural schematic diagram of the liquid medicine transfer device shown.

[0025] In the figure:

[0026] 1. Liquid transfer main part; 101. Liquid storage part; 102. Liquid transfer part; 103. Rotating groove; 2. Insertion pin; 201. Exchange hole; 3. Insertion pin port; 4. Liquid transfer port; 5. Holding part; 501. Holding member; 502. Rotating member. DETAILED DESCRIPTION

[0027] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0028] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0030] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0031] Reference Figure 1-Figure 4 In the present embodiment, a liquid medicine transfer device is disclosed, including a pipette main part 1 and an insertion needle 2, wherein the interior of the pipette main part 1 is hollow. Specifically, the above-mentioned pipette main part 1 can be approximately a tubular structure to facilitate the circulation of the liquid medicine; corresponding pin insertion ports 3 are provided at the upper and lower ends of the pipette main part 1. At the same time, in the present embodiment, the above-mentioned correspondingly arranged pin insertion ports 3 can be specifically expressed as two pin insertion ports 3 being coaxially arranged.

[0032] On the basis of the above, the pin 2 is arranged through the pipetting main component 1, and the two ends of the pin 2 extend from the pin ports 3 at the upper and lower ends of the pipetting main component 1 respectively, and the size of the pin port 3 is adapted to the pin 2; specifically, the distance that the above-mentioned pin 2 extends out of the pin port 3 can be set with reference to the liquid level of the medicine bottle, so that when the medicine is transferred, the end of the pin 2 can extend out of the liquid level of the medicine bottle located above, and the size of the above-mentioned pin port 3 is adapted to the pin 2, which can be specifically expressed as an interference fit between the pin port 3 and the pin 2, so that the liquid will not penetrate into the pipetting main component 1 from the pin port 3, and the stability of the connection between the pipetting main component 1 and the pin 2 is improved; the pin 2 is hollow and through, that is, gas or liquid can also flow through the pin 2.

[0033] The upper and lower ends of the pipette main part 1 are also provided with pipette ports 4, which are located on the side wall of the pipette main part 1, that is, the liquid in the medicine bottle can be transferred through the pipette port 4; wherein, the middle part of the pipette main part 1 can be deformed, that is, pressure can be artificially applied to the middle part of the pipette main part 1 to cause a certain degree of deformation of the pipette main part 1. Further, in this embodiment, at least the middle part of the pipette main part 1 is made of a flexible material.

[0034] It should be noted that, after the second liquid medicine transfer, the existing pressure-balancing gravity pipette experiences accumulation of liquid medicine. This is usually because the pressure-balancing gravity pipette is inverted after the first liquid medicine transfer. At this time, air circulation cannot be achieved in the upper and lower medicine bottles, and the pressure of the upper medicine bottle may be lower than the pressure of the lower medicine bottle, resulting in the inability to transfer the liquid medicine by gravity alone. In this embodiment, on the one hand, since the insertion needle 2 extends above the liquid surface of the medicine bottle, the internal space of the insertion needle 2 can allow air circulation between the upper and lower medicine bottles. On the other hand, since the middle position of the pipetting main component 1 can be deformed, pressure can be applied to the middle of the pipetting main component 1 to drive the transfer of the liquid medicine.

[0035] Specifically, in this embodiment, the liquid transfer main component 1 includes a liquid storage part 101 and a liquid transfer part 102, and the liquid transfer part 102 is respectively located at the upper and lower ends of the liquid storage part 101. Therefore, it can be known that the middle position of the above-mentioned liquid transfer main component 1 is usually located in the liquid storage part 101, and it can be specifically expressed as the liquid storage part 101 is deformable as a whole or the middle position of the liquid storage part 101 is deformable; preferably, the middle position of the above-mentioned liquid storage part 101 is protruding to be approximately in an arc shape, so as to facilitate the deformation action of the liquid storage part 101. The above-mentioned pin insertion port 3 and liquid transfer port 4 are both arranged on the liquid transfer part 102. Further, the above-mentioned liquid storage part 101 can be arranged in a symmetrical structure, so that the overall liquid transfer main component 1 is a symmetrical structure, which is conducive to batch processing.

[0036] Specifically, in this embodiment, it also includes a plug-in portion 5, which is arranged on the outside of the liquid storage portion 101. It can be known that since the pipette main component 1 needs to be plugged into the medicine bottle through the insertion needle 2, it is necessary to manually clamp the pipette main component 1 during operation, that is, to apply pressure to the pipette main component 1, and for the convenience of clamping, the clamping position is usually located in the middle of the pipette main component 1 (that is, located in the above-mentioned liquid storage portion 101), which will cause the deformation of the liquid storage portion 101 and affect the plug-in action; therefore, it can be understood that by providing the plug-in portion 5, the plug-in portion 5 can be manually clamped to perform the plug-in action during operation; further, the above-mentioned plug-in portion 5 is preferably non-deformable, that is, made of a rigid material.

[0037] Furthermore, in this embodiment, the inserting portion 5 includes an inserting member 501, and a plurality of inserting members 501 are arranged circumferentially around the liquid storage portion 101. That is, it can be known that when clamping is performed manually, since the clamping action is usually performed by at least two fingers, the plurality of inserting members 501 can be arranged to match the action requirements when clamping is performed manually, so as to facilitate clamping. On the other hand, by arranging a plurality of inserting members 501, a certain predetermined distance can be provided between adjacent inserting members 501, thereby reserving space to facilitate applying pressure to the liquid storage portion 101.

[0038] On the basis of the above-mentioned inserting member 501, the inserting part 5 may also include a rotating member 502, which is sleeved on the liquid storage part 101, and the inserting member 501 is connected to the rotating member 502 so as to rotate relative to the liquid transfer main part 1 through the rotating member 502; that is, it can be known that when the position of the inserting member 501 remains fixed, the range of pressure applied to the liquid storage part 101 by manual operation is limited, that is, the liquid storage part 101 can only be fixed in a certain area to apply pressure to cause deformation, and the position of the liquid accumulated in the liquid storage part 101 may be different, so by setting the rotating member 502, the position of the inserting member 501 can be changed, so that pressure can be applied to different positions of the liquid storage part 101. Further, the liquid storage part 101 is provided with a rotating groove 103, and the rotating member 502 is located in the rotating groove 103. It can be understood that by setting the rotating groove 103, the rotating member 502 will not move along the axial direction of the liquid storage part 101, so as to play a certain limiting role on the rotating member 502.

[0039] Specifically, in this embodiment, there are two rotating members 502, which are respectively located at the upper and lower ends of the liquid storage part 101, and the two ends of the insert member 501 are respectively connected to the two rotating members 502; it can be understood that by setting two rotating members 502, the stability of multiple insert members 501 is improved.

[0040] Specifically, in this embodiment, the size of the pipetting part 102 is gradually decreasing from the end close to the liquid storage part 101 to the end away from the liquid storage part 101; that is, it can be understood that the pipetting part 102 has an approximately conical structure, which is conducive to the insertion action between the whole body and the medicine bottle.

[0041] Specifically, in this embodiment, multiple pipetting ports 4 are arranged on the circumference of the pipetting part 102 , that is, it can be understood that the pipetting efficiency is improved by providing multiple pipetting ports 4 ; further, the multiple pipetting ports 4 are arranged in an array around the circumference of the pipetting part 102 .

[0042] Specifically, in this embodiment, the insertion needle 2 is provided with an exchange hole 201, and the insertion needle 2 is communicated with the interior of the liquid transfer main component 1 through the exchange hole 201. In this embodiment, it can be specifically expressed as the insertion needle 2 is communicated with the liquid storage part 101 through the exchange hole 201. That is, it can be understood that by providing the exchange hole 201, when the liquid storage part 101 is pressed manually to make the liquid medicine accumulated in the liquid storage part 101 flow, the liquid medicine in the insertion needle 2 can also flow to a certain extent, thereby facilitating the transfer of the liquid medicine.

[0043] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A liquid medicine transfer device, characterized in that: include: A liquid transfer main component (1), the interior of the liquid transfer main component (1) is hollow, and corresponding pin insertion ports (3) are provided at the upper and lower ends of the liquid transfer main component (1); An insertion needle (2), the insertion needle (2) is arranged to penetrate the liquid transfer main component (1), the two ends of the insertion needle (2) respectively extend from the insertion needle openings (3) at the upper and lower ends of the liquid transfer main component (1), and the size of the insertion needle opening (3) is adapted to the insertion needle (2), and the insertion needle (2) is hollow and through; The upper and lower ends of the liquid transfer main component (1) are also provided with liquid transfer ports (4), and the liquid transfer ports (4) are located on the side wall of the liquid transfer main component (1); Wherein, the middle part of the liquid transfer main component (1) is deformable.

2. A liquid medicine transfer device according to claim 1, characterized in that: The liquid transfer main component (1) comprises a liquid storage part (101) and a liquid transfer part (102); the liquid transfer part (102) is respectively located at the upper and lower ends of the liquid storage part (101); the needle insertion port (3) and the liquid transfer port (4) are both arranged on the liquid transfer part (102); and the liquid storage part (101) is deformable.

3. A liquid medicine transfer device according to claim 2, characterized in that: It also comprises an inserting and holding portion (5), wherein the inserting and holding portion (5) is arranged on the outside of the liquid storage portion (101).

4. A liquid medicine transfer device according to claim 3, characterized in that: The inserting and holding portion (5) comprises an inserting and holding piece (501), and a plurality of the inserting and holding pieces (501) are circumferentially arranged around the liquid storage portion (101).

5. A liquid medicine transfer device according to claim 4, characterized in that: The inserting and holding part (5) further comprises a rotating member (502), wherein the rotating member (502) is sleeved on the liquid storage part (101), and the inserting and holding part (501) is connected to the rotating member (502) so as to rotate relative to the liquid transfer main part (1) via the rotating member (502).

6. A liquid medicine transfer device according to claim 5, characterized in that: The liquid storage portion (101) is provided with a rotation groove (103), and the rotation member (502) is located in the rotation groove (103).

7. A liquid medicine transfer device according to claim 5 or 6, characterized in that: The rotating members (502) include two, and are respectively located at the upper and lower ends of the liquid storage portion (101), and the two ends of the inserting member (501) are respectively connected to the two rotating members (502).

8. A liquid medicine transfer device according to claim 2, characterized in that: The size of the liquid transfer portion (102) is gradually reduced from an end close to the liquid storage portion (101) toward an end away from the liquid storage portion (101).

9. A liquid medicine transfer device according to claim 2, characterized in that: The plurality of transfer ports (4) are arranged on the peripheral side of the transfer part (102).

10. A liquid medicine transfer device according to claim 1, characterized in that: The insertion needle (2) is provided with an exchange hole (201), and the insertion needle (2) is connected to the interior of the liquid transfer main component (1) through the exchange hole (201).

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