Anti-infection pipettor for clinical laboratory

Abstract

The utility model relates to the technical field of medical instruments, in particular to an anti-infection pipettor for a clinical laboratory, which comprises an extraction cylinder, an extraction rod is movably inserted into one end of the extraction cylinder, a piston is fixedly mounted at one end of the extraction rod, an extraction block is fixedly mounted at the other end of the extraction rod, and the piston is inserted into the extraction block. A limiting structure is arranged between the extraction rod and the extraction cylinder, an extraction needle tube is fixedly installed at the lower end of the extraction cylinder, a liquid drainage needle tube is fixedly installed on one side of the extraction needle tube, sealing structures are arranged in the liquid drainage needle tube and the extraction needle tube, and when the extraction rod moves, an extraction block drives a moving ring to move through a connecting rod; a user rotates the limiting screw rings, so that the limiting screw rings move on the surface of the extraction cylinder, the distance between the upper limiting screw ring and the moving ring is adjusted, the amount of extracted liquid can be controlled, the distance between the lower limiting screw ring and the moving ring is adjusted, and the amount of discharged liquid can be controlled.

Description

TECHNICAL FIELD

[0001] The utility model relates to a pipette especially relates to an infection prevention pipette for clinical laboratory belongs to medical instrument technical field. BACKGROUND

[0002] Medical examination is the material from the human microbiology, immunology, biochemistry, genetics, hematology, biophysics, cytology and so on, thereby for preventing, diagnosing, treating human diseases and evaluating human health provides information a science, the pipette for clinical laboratory is suitable for the inside of clinical laboratory, and the pipette can extract part of liquid needed to be observed by a microscope from the container and then move to the slide through the liquid container of the pipette, so that the liquid can be moved from the container to the slide.

[0003] Disclosed is a pipette for clinical laboratory, including pipette main part, the front end of pipette main part is provided with pipette range display window, the upper end middle part of pipette main part is provided with button, the upper end of left side of pipette main part is fixedly installed with shell, the inner chamber of shell is provided with fixed block, the upper end of fixed block is fixedly connected with first pull rope, the upper end of button is fixedly installed with fixed frame. The utility model discloses a fixed block, a first pull rope, a fixed frame, a second pull rope, a fixed ring, a support, a sponge and a counterweight are arranged, so that the problem that the force of different medical staff cannot be adjusted is solved, the pipette range display window can be wiped during pressing, the medical staff's trouble of wiping is saved, the accuracy of pipetting is further improved, and the pipette is practical and suitable for wide application and use.

[0004] The existing pipette for clinical laboratory extracts liquid from the inside of a liquid storage bottle through a needle, part of the extracted liquid remains in the inside of the needle tube, the liquid contacts the air in the inside of the needle tube, the liquid is easily infected, and the existing pipette for clinical laboratory cannot control the extracted amount and the discharged amount during use, which affects the use of users.

[0005] Therefore, it is urgent to improve the pipette for clinical laboratory to solve the above problems. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a pipette for clinical laboratory, which can solve the problem that the existing pipette for clinical laboratory extracts liquid from the inside of a liquid storage bottle through a needle, part of the extracted liquid remains in the inside of the needle tube, the liquid contacts the air in the inside of the needle tube, the liquid is easily infected, and the existing pipette for clinical laboratory cannot control the extracted amount and the discharged amount during use, which affects the use of users.

[0007] In order to achieve the above object, the utility model discloses the main technical scheme includes: a kind of infection-preventing pipette for clinical laboratory, including extraction cylinder, one end of the extraction cylinder is movably inserted with extraction rod, one end of the extraction rod is fixedly installed with piston, the other end of the extraction rod is fixedly installed with extraction block, limit structure is arranged between the extraction rod and extraction cylinder, the lower end of the extraction cylinder is fixedly installed with extraction needle tube, one side of the extraction needle tube is fixedly installed with drainage needle tube, the inside of drainage needle tube and extraction needle tube is provided with sealing structure.

[0008] Preferably, one end of the extraction cylinder is fixedly installed with a mounting seat, the extraction rod is movably inserted into the mounting seat, a connecting spring is provided on the surface of the extraction rod, and the two ends of the connecting spring are fixedly connected with the extraction block and the mounting seat, respectively.

[0009] Preferably, a threaded hole is formed in one side of the mounting seat, a limiting bolt penetrates through the inside of the threaded hole, one end of the limiting bolt is located on one side of the extraction rod, and the limiting bolt is vertically distributed with the extraction rod.

[0010] Preferably, the limiting structure includes a limiting screw ring, the limiting screw ring is movably sleeved on both ends of the extraction cylinder and symmetrically distributed, and the limiting screw ring is threadedly connected with the extraction cylinder.

[0011] Preferably, a moving ring is movably sleeved on the surface of the extraction cylinder, cleaning strips are arranged on both sides of the inside of the moving ring, the cleaning strips are attached to the observation glass, and the moving ring is located between the two limiting screw rings.

[0012] Preferably, connecting rods are fixedly installed on both sides of the moving ring, and one end of each connecting rod is fixedly connected with the extraction block.

[0013] Preferably, the sealing structure includes a sealing ring, the sealing ring is fixedly installed in the inside of the drainage needle tube and the extraction needle tube, an installation sleeve is fixedly installed in the inside of the drainage needle tube and the extraction needle tube, a supporting rod is movably inserted into one end of the installation sleeve, a sealing block is fixedly installed on one end of the supporting rod, and the sealing block is clamped with the sealing ring.

[0014] Preferably, one end of the supporting rod is located in the inside of the installation sleeve and is provided with a movable block, a return spring is sleeved on the surface of the supporting rod, and the return spring is connected with the movable block.

[0015] The utility model at least has the following beneficial effects:

[0016] 1、 the utility model discloses when extracting liquid, the extraction needle tube is inserted to the inside of the liquid storage bottle, and the user pulls the extraction rod through the extraction block, and the extraction rod drives the piston to move, so that the suction force is formed inside, the suction force drives the sealing block inside the extraction needle tube to move, and the sealing block is separated from the sealing ring (at the same time, the sealing block inside the liquid discharge needle tube is subjected to the suction force, and the sealing ring corresponding to it is clamped), so that the liquid can enter the inside of the extraction cylinder through the extraction needle tube, when stopping extraction, the sealing block inside the extraction needle tube restores to the original position, and the sealing block is clamped with the sealing ring, avoiding that air enters the inside of the extraction needle tube, and the user pushes the extraction rod, and the sealing block inside the liquid discharge needle tube is subjected to extrusion, so that the sealing block is separated from the sealing ring corresponding to it, so that the liquid can be discharged through the liquid discharge needle tube, avoiding liquid pollution.

[0017] 2、 the utility model discloses when the extraction rod moves, the extraction block moves the moving ring through the connecting rod, and the user rotates the limiting screw ring, so that the limiting screw ring moves on the surface of the extraction cylinder, adjusts the distance between the upper limiting screw ring and the moving ring, can control the amount of liquid extraction, and adjusts the distance between the lower limiting screw ring and the moving ring, can control the amount of liquid discharge. ACCURACY

[0018] The drawings described herein are used to provide further understanding of the present application, and form a part of the present application, the illustrative embodiments of the present application and the description thereof are used to explain the present application, and do not constitute improper limitation on the present application. In the drawings:

[0019] Figure 1 It is the three-dimensional structure schematic diagram of the device of the utility model;

[0020] Figure 2 It is the side surface structure schematic diagram of the device of the utility model;

[0021] Figure 3 It is the half cut structure schematic diagram of the device of the utility model;

[0022] Figure 4 It is the Figure 3 Enlarged structure schematic diagram in the utility model.

[0023] In the drawing, 1, extraction cylinder;2, observation glass;3, limiting screw ring;4, moving ring;5, cleaning strip;6, connecting rod;7, mounting seat;8, extraction rod;9, extraction block;10, connecting spring;11, extraction needle tube;12, liquid discharge needle tube;13, limiting bolt;14, piston;15, sealing ring;16, sealing block;17, mounting sleeve;18, movable block;19, support rod;20, return spring. DETAILED DESCRIPTION

[0024] The embodiments of the present application will be described in detail below with the accompanying drawings and examples, so that the realization process of how the present application applies technical means to solve technical problems and achieves technical effects can be fully understood and implemented.

[0025] As shown in Figures 1 to 4 The present embodiment provides an anti-infection pipette for clinical laboratory, which comprises a suction cylinder 1, one end of the suction cylinder 1 movably penetrates a suction rod 8, one end of the suction rod 8 fixedly installs a piston 14, the other end of the suction rod 8 fixedly installs a suction block 9, the lower end of the suction cylinder 1 fixedly installs a suction needle tube 11, one side of the suction needle tube 11 fixedly installs a drainage needle tube 12, the inside of the drainage needle tube 12 and the suction needle tube 11 is provided with a sealing structure, the sealing structure comprises a sealing ring 15, the sealing ring 15 is fixedly installed in the inside of the drainage needle tube 12 and the suction needle tube 11, the inside of the drainage needle tube 12 and the suction needle tube 11 fixedly installs an installation sleeve 17, one end of the installation sleeve 17 movably penetrates a supporting rod 19, one end of the supporting rod 19 fixedly installs a sealing block 16, the sealing block 16 is clamped with the sealing ring 15, one end of the supporting rod 19 is located in the inside of the installation sleeve 17 and installs a movable block 18, the surface of the supporting rod 19 is sleeved with a return spring 20, the return spring 20 is connected with the movable block 18;

[0026] In the embodiment, when the liquid is sucked, the suction needle tube 11 is inserted into the inside of the liquid storage bottle, the user pulls the suction rod 8 through the suction block 9, the suction rod 8 drives the piston 14 to move, so that the suction force is generated in the inside, the suction force drives the sealing block 16 in the inside of the suction needle tube 11 to move, the sealing block 16 is separated from the sealing ring 15 (at the same time, the sealing block 16 in the inside of the drainage needle tube 12 is affected by the suction force, and the sealing ring 15 corresponding thereto is clamped), so that the liquid can enter into the inside of the suction cylinder 1 through the suction needle tube 11, when the suction is stopped, the sealing block 16 in the inside of the suction needle tube 11 returns to the original position, the sealing block 16 is clamped with the sealing ring 15, so as to avoid the air entering into the inside of the suction needle tube 11, similarly, the user pushes the suction rod 8, the suction rod 8 extrudes the liquid, so that the sealing block 16 in the inside of the drainage needle tube 12 is extruded, the sealing block 16 is separated from the sealing ring 15 corresponding thereto, so that the liquid can be discharged through the drainage needle tube 12, and the liquid pollution is avoided.

[0027] The extraction cylinder 1 has a mounting base 7 fixedly installed at one end. The extraction rod 8 is movably inserted inside the mounting base 7. A connecting spring 10 is sleeved on the surface of the extraction rod 8. The two ends of the connecting spring 10 are fixedly connected to the extraction block 9 and the mounting base 7, respectively. A threaded hole is opened on one side of the mounting base 7. A limit bolt 13 passes through the threaded hole. One end of the limit bolt 13 is located on one side of the extraction rod 8. The limit bolt 13 is perpendicular to the extraction rod 8. When the extraction rod 8 is in a certain position, the user rotates the limit bolt 13, and the limit bolt 13 moves into the mounting base 7. The limit bolt 13 fits against the extraction rod 8, which can limit the position of the extraction rod 8 and limit the extraction cylinder 1.

[0028] like Figures 1 to 3 As shown in the figure, this embodiment provides an infection-proof pipette for laboratory use. A limiting structure is provided between the extraction rod 8 and the extraction cylinder 1. The limiting structure includes limiting screw rings 3, which are movably sleeved on both ends of the extraction cylinder 1 and symmetrically distributed. The limiting screw rings 3 are threadedly connected to the extraction cylinder 1. A movable ring 4 is movably sleeved on the surface of the extraction cylinder 1. Cleaning strips 5 are provided on both sides inside the movable ring 4. The cleaning strips 5 are in contact with the observation glass 2. The movable ring 4 is located between the two limiting screw rings 3. Connecting rods 6 are fixedly installed on both sides of the movable ring 4. One end of the connecting rod 6 is fixedly connected to the extraction block 9.

[0029] In this embodiment, when the extraction rod 8 moves, the extraction block 9 drives the moving ring 4 to move through the connecting rod 6. The user rotates the limiting screw ring 3, causing the limiting screw ring 3 to move on the surface of the extraction cylinder 1. Adjusting the distance between the upper limiting screw ring 3 and the moving ring 4 can control the amount of liquid extracted. Adjusting the distance between the lower limiting screw ring 3 and the moving ring 4 can control the amount of liquid discharged.

[0030] If certain terms are used in the specification and claims to refer to specific components, those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" as used throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.

[0031] It is to be understood that the terminology "including", "comprising", or any other variation thereof, is intended to cover a non-exclusive inclusion such that a product or process that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such product or process. An element proceeded by "comprises a" does not, without further recitation, preclude the inclusion of additional elements of that element or the possibility of additional elements that are the same as that element.

[0032] The above description illustrates and describes several preferred embodiments of the present application, but it is to be understood that the present application is not limited to the above-described forms, and should not be considered as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the present application concept described herein, by the above teachings or related art or knowledge. Any modification and change made by those skilled in the art without departing from the spirit and scope of the present application shall be within the protection scope of the appended claims of the present application.

Claims

1. An infection-resistant pipette for laboratory use, comprising a collection tube (1), characterized in that: One end of the extraction cylinder (1) is movably inserted with an extraction rod (8), one end of the extraction rod (8) is fixedly installed with a piston (14), the other end of the extraction rod (8) is fixedly installed with an extraction block (9), a limiting structure is provided between the extraction rod (8) and the extraction cylinder (1), an extraction needle tube (11) is fixedly installed at the lower end of the extraction cylinder (1), a drain needle tube (12) is fixedly installed on one side of the extraction needle tube (11), and a sealing structure is provided inside the drain needle tube (12) and the extraction needle tube (11).

2. The infection-proof pipette for laboratory use according to claim 1, characterized in that: One end of the extraction cylinder (1) is fixedly installed with a mounting base (7), and the extraction rod (8) is movably inserted inside the mounting base (7). A connecting spring (10) is sleeved on the surface of the extraction rod (8), and the two ends of the connecting spring (10) are fixedly connected to the extraction block (9) and the mounting base (7) respectively.

3. The infection-proof pipette for laboratory use according to claim 2, characterized in that: The mounting base (7) has a threaded hole on one side, and a limiting bolt (13) passes through the inside of the threaded hole. One end of the limiting bolt (13) is located on one side of the extraction rod (8), and the limiting bolt (13) and the extraction rod (8) are perpendicular to each other.

4. The infection-proof pipette for laboratory use according to claim 1, characterized in that: The limiting structure includes a limiting screw ring (3), which is movably sleeved on both ends of the extraction cylinder (1) and symmetrically distributed. The limiting screw ring (3) is threadedly connected to the extraction cylinder (1).

5. The infection-resistant pipette for laboratory use according to claim 4, characterized in that: The surface of the extraction cylinder (1) is movably fitted with a movable ring (4), and cleaning strips (5) are provided on both sides inside the movable ring (4). The cleaning strips (5) are in contact with the observation glass (2), and the movable ring (4) is located between two limiting screw rings (3).

6. The infection-proof pipette for laboratory use according to claim 5, characterized in that: Connecting rods (6) are fixedly installed on both sides of the moving ring (4), and one end of the connecting rod (6) is fixedly connected to the extraction block (9).

7. The infection-proof pipette for laboratory use according to claim 1, characterized in that: The sealing structure includes a sealing ring (15), which is fixedly installed inside the drain needle tube (12) and the extraction needle tube (11). An installation sleeve (17) is fixedly installed inside the drain needle tube (12) and the extraction needle tube (11). A support rod (19) is movably inserted through one end of the installation sleeve (17). A sealing block (16) is fixedly installed at one end of the support rod (19). The sealing block (16) is engaged with the sealing ring (15).

8. The infection-resistant pipette for laboratory use according to claim 7, characterized in that: One end of the support rod (19) is located inside the mounting sleeve (17) and is fitted with a movable block (18). A return spring (20) is fitted on the surface of the support rod (19), and the return spring (20) is connected to the movable block (18).

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