Novel efficient medical pipette

Abstract

The utility model discloses a novel efficient medical pipette which comprises a pipette body provided with a breather pipe at the bottom, and further comprises a connecting box and a plurality of liquid taking pipes which are arranged at the bottom of the pipette body, the connecting box is provided with an inner cavity with a downward opening, the breather pipe extends into the inner cavity and is sleeved with a threaded sleeve, the outer wall of the threaded sleeve is in threaded connection with a limiting plate, and the limiting plate is connected with the liquid taking pipes. Guide rods are fixedly installed on the two sides of the liquid taking pipes correspondingly, and sliding holes used for containing the guide rods are formed in the side wall of the limiting plate so that the threaded sleeve can be rotated to drive the limiting plate to do linear motion in the inner cavity, and the distance between the liquid taking pipes can be adjusted at equal intervals through cooperation of the sliding holes and the guide rods. Through cooperation of the threaded sleeve, the limiting plate and the guide rod, an equal-interval adjusting mechanism of the liquid taking pipes is formed in the connecting box, a user can conveniently adjust the interval of the liquid taking pipes according to gun heads of different specifications, the application range and the use effect of the pipette are improved, the structure is simple, operation is convenient and fast, assembly is compact, and use is convenient. And the method has relatively high popularization value and practicability.

Description

Technical Field

[0001] The utility model relates to the field of experimental tools, in particular to a novel high-efficiency medical pipette. Background Art

[0002] A pipette is an experimental tool that plays an important role in clinical diagnosis, biotechnology, drug development and many other aspects. It is often used to transfer small or trace amounts of liquid in the laboratory. Pipettes of different specifications are equipped with pipette tips of different sizes. The shapes of pipettes produced by different manufacturers are also slightly different, but the working principles and operating methods are basically the same.

[0003] In order to improve the efficiency of pipetting operations, the prior art provides a multi-channel pipette, such as a multi-channel adjustable pipette with publication number CN221789329U, which includes a gun body, a spacing adjustment mechanism, a liquid suction component and a spring. The horizontal limb of the gun body has an installation cavity, and a plurality of sliding grooves are arranged in the installation cavity through partitions. The plurality of sliding grooves are all slidably connected with liquid suction components, and the liquid suction components are arranged at equal intervals. A spring is provided between the liquid suction component and the partition, and the spring forces the liquid suction component to move outward. The spacing adjustment mechanism is arranged at the bottom of the vertical limb of the gun body to adjust the spacing of the liquid suction components; the driving shaft handwheel is pressed to unlock, and the handwheel is turned to drive the winding wheel to reel in the pull rope, and the pull rope drives the corresponding liquid suction component to move in the sliding groove, thereby adjusting the nozzle spacing.

[0004] The above-mentioned multi-channel pipette adjusts the spacing of the nozzles by cooperating with a winding wheel and a pull rope, but the structure is complex, resulting in cumbersome operation during assembly of the pipette and also causing inconvenience to subsequent users when maintaining and disassembling the pipette. Utility Model Content

[0005] The purpose of the present utility model is to provide a novel and efficient medical pipette to solve the problem of the complicated structure of the adjustment mechanism of the existing adjustable multi-channel pipette mentioned in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a new type of high-efficiency medical pipette, comprising a gun body with a vent tube at the bottom, and a connecting box and several liquid collection tubes installed at the bottom of the gun body, the connecting box is provided with an inner cavity opening downward, the vent tube extends into the inner cavity and is sleeved with a threaded sleeve, the outer wall of the threaded sleeve is threadedly connected to a limit plate, the liquid collection tube is slidably installed on the inner side wall of the connecting box, guide rods are fixedly installed on both sides of the liquid collection tube, and the side walls of the limit plate are provided with sliding holes for accommodating the guide rods, so that the threaded sleeve can be rotated to drive the limit plate to perform linear motion in the inner cavity and adjust the spacing of several liquid collection tubes at equal distances through the sliding hole and cooperation with the guide rod.

[0007] Preferably, a shunt pipe is fixedly mounted on the side wall of the inner cavity, the vent pipe in the gun body extends to communicate with the shunt pipe, and the top ends of several liquid extraction pipes are respectively connected to the shunt pipe through hoses.

[0008] Preferably, a sliding groove is provided on the side wall of the connection box, and the end of the guide rod extends to contact the sliding groove.

[0009] Preferably, a handwheel is fixedly sleeved on the outer wall of the threaded sleeve, and through holes for accommodating the handwheel are respectively provided on the cavity walls on both sides of the connecting box.

[0010] Preferably, support rings are fixedly mounted on the outer wall of the threaded sleeve at both sides of the hand wheel, and a pair of double-ear plates for accommodating the support rings are fixedly mounted on the inner wall of the connecting box.

[0011] Preferably, a plurality of square holes are provided on the side wall of the limiting plate.

[0012] Preferably, the number of the sliding holes corresponds to the number of the liquid extraction tubes, and the sliding holes are arranged obliquely.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] This application forms an equal spacing adjustment mechanism for the liquid collection tubes in the connecting box through the cooperation of the threaded sleeve, the limit plate and the guide rod, so that users can conveniently adjust the spacing of the liquid collection tubes according to the gun heads of different specifications, thereby improving the applicability and use effect of the pipette. It has a simple structure, convenient operation and compact assembly, and has high promotion value and practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the three-dimensional structure of the connection box of the utility model when cut open from the first perspective;

[0017] Figure 3 This is a schematic diagram of the three-dimensional structure of the connection box of the utility model when cut open from a second perspective;

[0018] Figure 4 It is a schematic diagram of the three-dimensional structure of the threaded sleeve and the limiting plate assembly of the utility model.

[0019] In the figure: 1. Gun body; 2. Connecting box; 3. Liquid extraction tube; 4. Handwheel; 5. Limit plate; 6. Guide rod; 7. Sliding hole; 8. Threaded sleeve; 9. Diverter tube; 10. Hose; 11. Support ring; 12. Double ear plate. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figure 1-Figure 4The utility model provides a technical solution: a new type of high-efficiency medical pipette, including a gun body 1 with a vent tube at the bottom. The gun body 1 of the present application is provided with a piston, a spring and other existing technologies, which cooperate to achieve the effect of accurately and reliably transferring trace liquids, which is crucial for medical research and clinical diagnosis. It also includes a connecting box 2 and a plurality of liquid collection tubes 3 installed at the bottom of the gun body 1. A shunt tube 9 is fixedly installed on the side wall of the inner cavity. The vent tube in the gun body 1 extends to be connected to the shunt tube 9. The vent tube is used to connect the air chamber of the piston in the gun body 1 with the shunt tube 9. The top ends of the plurality of liquid collection tubes 3 are connected to the shunt tube 9 through a hose 10 respectively. The purpose of using the hose 10 is that when the plurality of liquid collection tubes 3 are equidistant When adjusting the spacing, the hose 10 can adapt to the spacing of the liquid collection tube 3 to ensure that the liquid collection tube 3 absorbs liquid normally. The connecting box 2 is provided with an inner cavity with an opening downward. The vent pipe extends into the inner cavity and is sleeved with a threaded sleeve 8. The outer wall of the threaded sleeve 8 is fixedly installed with support rings 11 on both sides of the handwheel 4. A pair of double-ear plates 12 for accommodating the support rings 11 are fixedly installed on the inner wall of the connecting box 2. The setting of the double-ear plates 12 can support the threaded sleeve 8. The outer wall of the threaded sleeve 8 is fixedly sleeved with a handwheel 4. The cavity walls on both sides of the connecting box 2 are respectively provided with through holes for accommodating the handwheel 4. The handwheel 4 passes through the through holes, which is convenient for the user to rotate the handwheel 4 outside the connecting box 2. The outer wall of the threaded sleeve 8 is threadedly connected to the limit plate 5. The side wall of the limiting plate 5 is provided with a plurality of square holes. The advantage of such a setting is that the limiting plate 5 is lightweight, the weight of the gun body is reduced, and the user's operation is convenient. The liquid taking tube 3 is slidably installed on the inner wall of the connecting box 2, and guide rods 6 are fixedly installed on both sides of the liquid taking tube 3. The side wall of the connecting box 2 is provided with a slide groove, and the end of the guide rod 6 extends to contact the slide groove. The side wall of the limiting plate 5 is provided with a slide hole 7 for accommodating the guide rod 6. The number of the slide holes 7 corresponds to the number of the liquid taking tubes 3, and the slide holes 7 are inclined so that the threaded sleeve 8 can be rotated to drive the limiting plate 5 to perform linear movement in the inner cavity and adjust the spacing of several liquid taking tubes 3 at equal distances through the slide hole 7 and the guide rod 6. When adjusting the spacing of the liquid taking tubes 3, the user can adjust the spacing of the liquid taking tubes 3 by adjusting the distance between the connecting box 2 and the guide rod 6. The handwheel 4 is rotated on the side wall of the connecting box 2, and the handwheel 4 drives the threaded sleeve 8 to rotate. Since the two ends of the limit plate 5 extend to contact the inner wall of the connecting box 2, rotating the threaded sleeve 8 will drive the limit plate 5 to move linearly in the inner cavity of the connecting box 2. While moving, the limit plate 5 cooperates with the guide rod 6 through the sliding hole 7 to adjust the spacing of several liquid collection tubes 3 at equal intervals. This application forms an equal-interval adjustment mechanism for the liquid collection tubes 3 in the connecting box 2 through the cooperation of the threaded sleeve 8, the limit plate 5 and the guide rod 6. The user can conveniently adjust the spacing of the liquid collection tubes 3 according to gun tips of different specifications, thereby improving the applicability and use effect of the pipette gun. It has a simple structure, convenient operation and compact assembly, and has high promotion value and practicality.

[0022] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0023] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel and efficient medical pipette, comprising a pipette body (1) with a vent tube at the bottom, characterized in that: The gun body (1) further comprises a connection box (2) and a plurality of liquid extraction pipes (3) mounted on the bottom of the gun body (1), wherein the connection box (2) is provided with an inner cavity with an opening downward, the vent pipe extends into the inner cavity and is sleeved with a threaded sleeve (8), the outer wall of the threaded sleeve (8) is threadedly connected to a limit plate (5), the liquid extraction pipe (3) is slidably mounted on the inner wall of the connection box (2), and guide rods (6) are fixedly mounted on both sides of the liquid extraction pipe (3), and a sliding hole (7) for accommodating the guide rod (6) is provided on the side wall of the limit plate (5), so that the threaded sleeve (8) is rotated to drive the limit plate (5) to perform linear motion in the inner cavity and adjust the spacing of the plurality of liquid extraction pipes (3) at equal distances by cooperating with the guide rod (6) through the sliding hole (7).

2. A novel high-efficiency medical pipette according to claim 1, characterized in that: A shunt pipe (9) is fixedly mounted on the side wall of the inner cavity, a vent pipe in the gun body (1) extends to communicate with the shunt pipe (9), and the top ends of several liquid extraction pipes (3) are respectively communicated with the shunt pipe (9) through hoses (10).

3. A novel high-efficiency medical pipette according to claim 1, characterized in that: A sliding groove is provided on the side wall of the connection box (2), and the end of the guide rod (6) extends to contact the sliding groove.

4. A novel high-efficiency medical pipette according to claim 1, characterized in that: A hand wheel (4) is fixedly sleeved on the outer wall of the threaded sleeve (8), and through holes for accommodating the hand wheel (4) are respectively provided on the cavity walls on both sides of the connection box (2).

5. A novel high-efficiency medical pipette according to claim 4, characterized in that: The outer wall of the threaded sleeve (8) is fixedly mounted with support rings (11) on both sides of the hand wheel (4), and the inner wall of the connection box (2) is fixedly mounted with a pair of double-ear plates (12) for accommodating the support rings (11).

6. A novel and efficient medical pipette according to claim 1, characterized in that: A plurality of square holes are provided on the side wall of the limiting plate (5).

7. A novel high-efficiency medical pipette according to claim 1, characterized in that: The number of the sliding holes (7) corresponds to the number of the liquid extraction tubes (3), and the sliding holes (7) are arranged obliquely.

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