CN212348772U

CN212348772U - Liquid partial shipment auxiliary device for clinical examination

Info

Publication number: CN212348772U
Application number: CN202020965427.6U
Authority: CN
Inventors: 张宗新
Original assignee: Huzhou Central Hospital
Current assignee: Huzhou Central Hospital
Priority date: 2020-06-01
Filing date: 2020-06-01
Publication date: 2021-01-15
Anticipated expiration: 2030-06-01

Abstract

The utility model relates to a clinical examination equipment technical field especially relates to a liquid partial shipment auxiliary device for clinical examination. The liquid suction device is arranged on a liquid suction barrel and comprises a positioning ring sleeved on the barrel body of the liquid suction barrel, and a stop block is arranged on the outer side surface of the positioning ring; the liquid suction device also comprises a fixed part and a connecting rod which are connected with the piston rod of the liquid suction cylinder, and the connecting rod is provided with a convex block which can be matched with the stop block; the mounting is including the installation body, the bottom plate opening of the installation body is equipped with the operation piece, operation piece one end forms the operation end, the other end passes through the elastic component with the interior top of the installation body and is connected, the both sides face of operation piece is equipped with vertical rack respectively, and it has drive gear to mesh respectively, drive gear meshes respectively horizontal rack, the opening that the one end of horizontal rack passed the curb plate extends to the installation body and is external and be connected with the extension rod, the one end that the extension rod is close to the separation blade is equipped with the pressboard, pressboard and extension rod form the fixed knot who is used for snatching the separation blade. This application is applicable in the imbibition section of thick bamboo of different specifications, extensive applicability.

Description

Liquid partial shipment auxiliary device for clinical examination

Technical Field

The utility model relates to a clinical examination equipment technical field especially relates to a liquid partial shipment auxiliary device for clinical examination.

Background

The clinical examination is a process of obtaining objective data reflecting the body function state, pathological changes or etiology by detecting samples of blood, body fluid, secretion, excrement, droppings and the like of a patient through visual observation, physical, chemical, instrument or molecular biological methods and performing qualitative or quantitative analysis by using physical, chemical, biological and other experimental methods. Extraction and dispensing using a lotion cartridge are often required during clinical testing.

The prior art at least has the following technical problems: in the imbibition section of thick bamboo use that uses at present, only accessible operating personnel observes the scale mark at imbibition in-process visual observation to the capacity of required sample liquid and judges, and because sample liquid draws the in-process operating personnel sight and scale interval and can't remain the level unanimous state all the time, leads to sample liquid to extract the volume and has the error, needs adjustment branch packing ware interior label this liquid measure many times, and the operation is inconvenient, and the practicality is relatively poor.

The patent document with the publication number of CN202555298U discloses such adjustable quantitative pipettor, this quantitative pipettor include the imbibition section of thick bamboo of syringe form and with imbibition section of thick bamboo inner wall complex plunger, the imbibition section of thick bamboo is kept away from the plunger end and is provided with the inlet, the imbibition section of thick bamboo end is kept away from to the plunger is provided with the handle, imbibition section of thick bamboo cylinder surface is provided with the position circle outward, plunger cylinder surface external connection has two metal poles, two metal poles are kept away from plunger handle end and are provided with the elbow, the interval at two metal pole straight section positions is greater than the position circle external diameter, and the interval at two metal pole elbow positions is less than the. The utility model discloses a ration pipettor with adjustable utilizes the piston reciprocating motion of imbibition section of thick bamboo and plunger to realize getting liquid and tapping, utilizes the shift position of metal pole and position circle control piston to carry out the liquid ration. However, in actual clinical examination, different samples may need different sizes of pipette barrels, and the metal rod and the positioning ring in the application cannot be detached and are suitable for various sizes of pipette barrels.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the above problem and provide a liquid partial shipment auxiliary device for clinical examination.

The technical scheme of the utility model for solving the problems is that, a liquid split charging auxiliary device for clinical examination is provided, which is arranged on a liquid suction cylinder, the liquid suction cylinder comprises a cylinder body with a liquid suction head, a piston arranged in the cylinder body and a piston rod which is connected with the piston and is used for driving the piston to move in the cylinder body, one end of the piston rod which is not connected with the piston is provided with a stop sheet for preventing the piston rod from being completely inserted into the cylinder body; the liquid split charging auxiliary device comprises a positioning ring which is sleeved on the barrel and can move along the barrel, and a stop block is arranged on the outer side surface of the positioning ring; the piston rod is provided with a piston rod, a piston rod and a connecting rod, wherein the piston rod is connected with one end of the piston rod, which is not connected with the piston, the connecting rod is arranged on the fixing part, the connecting rod is provided with a convex block which can be matched with the stop block so that the stop block stops the connecting rod to move, and the end face, far away from the liquid suction head, of the convex block is flush with the end face, close to the liquid suction head, of the piston; the fixing piece is detachably connected with the stop piece of the piston rod; the fixing piece comprises an installation body with a hollow inner part, a bottom plate and two opposite side plates, wherein the bottom plate is far away from the stopping piece of the installation body, the two opposite side plates are respectively provided with an opening, the opening of the bottom plate is provided with an operation block, one end of the operation block is positioned outside the installation body to form an operation end, the other end of the operation block is connected with the inner top of a top plate of the installation body, which is close to the stopping piece, through an elastic piece, the two side surfaces of the operation block are respectively provided with a vertical rack, and are respectively meshed with a driving gear, the driving gears are respectively meshed with a horizontal rack, one end of the horizontal rack penetrates through the opening of the side plate to extend out of the installation body and is connected with an extension rod, one end of the extension rod; the horizontal rack is located between the drive gear and the top plate.

In order to improve the operating distance of the operating block, as the utility model discloses an optimization, the drive gear all sets up in the installation body through the axis body, the axis body all is equipped with drive gear, and a drive gear sets up in one side of the operating block, another drive gear sets up in the opposite side of the operating block; the horizontal racks are respectively meshed with the transmission gears.

As a preferred aspect of the present invention, the connecting rod is L-shaped, and includes a horizontal portion and a vertical portion, the horizontal portion is connected to the extension rod.

In order to be suitable for the cylinders with different outer diameters, the horizontal part of the utility model preferably comprises a hollow column connected with the extension rod and an insertion column connected with the vertical part, and the insertion column is connected with the inner bottom of the hollow column through a spring; the inserting column is provided with a convex ring, and the inner wall of the hollow column is provided with a stop ring which is matched with the convex ring to prevent the inserting column from being separated from the hollow column.

In order to be applicable to the imbibition section of thick bamboo of different length, as the utility model discloses a preferred, vertical portion is the telescopic link.

In order to make the holding ring can be applicable to the barrel of different external diameters, as the utility model discloses a preferred, the holding ring is connected gradually by a plurality of fixed blocks and elastic webbing and forms.

As the utility model discloses a preferred, the barrel is equipped with the scale.

As a preferred aspect of the present invention, the cylinder is provided with a grip portion.

The utility model has the advantages that:

1. this application is through the holding ring in order to confirm the imbibition volume before the imbibition, then through the backstop of backstop piece to the lug, thereby the removal stroke of backstop piston of backstop connecting rod need not operating personnel and reads the scale constantly, can obtain definite imbibition volume fast to ensure to extract the accuracy nature of sample liquid measure in the imbibition section of thick bamboo.

2. This application can be dismantled with a imbibition section of thick bamboo through being connected with the mounting for the auxiliary device of this application can be used to a imbibition section of thick bamboo of various specifications.

Drawings

FIG. 1 is a schematic view of a liquid dispensing auxiliary device for clinical laboratory mounted on a pipette;

FIG. 2 is a sectional view of a liquid dispensing aid for clinical laboratory mounted on a pipette;

FIG. 3 is an enlarged view of a liquid dispensing aid for clinical examination at A;

FIG. 4 is a schematic structural view of a fixing member of a liquid dispensing aid for clinical examination;

in the figure: the liquid suction head 11, the cylinder 12, the grip 121, the piston 13, the piston rod 14, and the stopper 141. The positioning ring 21, the stop block 211, the elastic band 212, the fixed block 213, the fixed part 22, the mounting body 221, the bottom plate 2211, the side plate 2212, the top plate 2213, the operating block 222, the vertical rack 2221, the elastic part 223, the driving gear 224, the horizontal rack 225, the extension rod 226, the pressing plate 227, the transmission gear 228, the connecting rod 23 and the bump 24.

Detailed Description

The following are embodiments of the present invention and the accompanying drawings are used to further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.

A liquid split charging auxiliary device for clinical examination is mounted on a liquid suction barrel as shown in figures 1 and 2 and is used for assisting the liquid suction positioning of the liquid suction barrel.

The pipette, that is, a common injector at ordinary times, includes a cylinder 12 having a pipette head 11, a piston 13 disposed in the cylinder 12, and a piston rod 14 connected to the piston 13 and used for driving the piston 13 to move in the cylinder 12, wherein a stopper 141 for preventing the piston rod 14 from being completely inserted into the cylinder 12 is disposed at one end of the piston rod 14 not connected to the piston. The cylinder 12 is provided with scales. When the operator places the pipette head 11 in the liquid sample and then pulls the piston rod 14 so that the piston 13 moves away from the pipette head 11, the liquid sample is sucked between the piston 13 and the pipette head 11.

Because the sampling of sample is through needing the ration, in order to avoid operating personnel constantly to observe the scale in order to adjust and confirm the imbibition volume, this application has installed a liquid partial shipment auxiliary device on this kind of imbibition section of thick bamboo, including the cover locate barrel 12, and can follow the holding ring 21 of barrel 12 removal, the lateral surface of holding ring 21 is equipped with backstop 211; the piston rod assembly further comprises a fixing piece 22 connected with one end, not connected with the piston, of the piston rod 14 and a connecting rod 23 arranged on the fixing piece 22, the connecting rod 23 is provided with a convex block 24 which can be matched with the stop block 211 to enable the stop block 211 to stop the connecting rod 23 from moving, and the end face, far away from the liquid suction head 11, of the convex block 24 is flush with the end face, close to the liquid suction head 11, of the piston 13. The cylinder 12 is provided with a grip 121.

In use, according to the directions in fig. 1 and 2, the positioning ring 21 is firstly moved to the corresponding height on the cylinder 12 according to the amount of the sample liquid to be extracted, and the upper end of the positioning ring 21 is flush with the corresponding scale. The piston 13 is then pushed upwards so that the piston 13 abuts against the inner top of the cylinder 12. Then the pipette tip 11 is placed in the liquid sample, one hand holds the cylinder 12 by the grip 121, the other hand pulls the fixing member 22 downward, and the piston 13 and the connecting rod 23 move synchronously, so that the pipette tip sucks liquid. When the projection 24 of the connecting rod 23 is moved to contact the stop block 211, the movement cannot be continued, and the volume of the liquid sample obtained by suction is the amount determined in the preceding step.

Because the length of different imbibition section of thick bamboo, external diameter are all different, and its backstop piece 141's size is also different, in order to make the imbibition section of thick bamboo that the liquid partial shipment auxiliary device of this application can be applicable to arbitrary specification, at first with the holding ring 21 by a plurality of fixed blocks 213 and elastic band 212 connect gradually and form for the barrel 12 of different external diameters can the adaptation of holding ring 21.

As shown in fig. 3 and 4, the fixing member 22 is then detachably coupled to the stopper piece 141 of the piston rod. The fixing member 22 includes a hollow mounting body 221, a bottom plate 2211 of the mounting body 221 far from the stop plate and two opposite side plates 2212 are respectively provided with an opening, the opening of the bottom plate 2211 is provided with an operation block 222, one end of the operation block 222 is positioned outside the mounting body 221 to form an operation end, the other end of the operation block 222 is connected with the inner top of a top plate 2213 of the mounting body 221 near the stop plate through an elastic member 223, two side surfaces of the operation block 222 are respectively provided with a vertical rack 2221 and respectively engaged with a driving gear 224, the driving gears 224 are both arranged in the mounting body 221 through a shaft body, the shaft body is provided with a transmission gear 228, the transmission gear 228 is arranged on one side of the operation block 222, the other transmission gear 228 is arranged on the other side of the operation block 222, the transmission gears 228 are respectively engaged with a horizontal rack 225, one end of the horizontal rack 225 passes through the opening of the side plate 2212 and extends to the, the pressing plate 227 and the extension rod 226 form a fixing structure for grabbing the side edge of the stop piece 141; the horizontal rack 225 is located between the driving gear 224 and the top plate 2213 (it should be noted that only the right horizontal rack 225 is shown in fig. 4 along with the extension bar 226, the pressing plate 227, etc., and the left side is not shown, but not represented).

In use, according to the direction shown in fig. 4, the operating block 222 is first pushed upward, the elastic member 223 is compressed, the vertical rack 2221 moves upward, the left driving gear 224 is driven to rotate counterclockwise, and the right driving gear 224 rotates clockwise. So that the left drive gear 228 rotates counterclockwise and the right drive gear 228 rotates clockwise. So that the left horizontal rack 225 (not shown) moves to the left and out of the mounting body 221 and the right horizontal rack 225 moves to the right and out of the mounting body 221. This makes the distance between the two extending rods 226 large, and the stopper piece 141 of the piston rod 14 can be inserted between the two extending rods 226. Then, the pushing force on the operation block 222 is released, and the operation block 222 moves downward by the resilient action of the elastic member 223, so that the distance between the two extension bars 226 becomes smaller through a series of linkage of the vertical rack 2221, the drive gear 224, the transmission gear 228, and the horizontal rack 225, thereby clamping the stopper piece 141 between the two extension bars 226. Finally, when the fixing member 22 is pulled down to suck liquid, the pressing plate 227 presses the stopper piece 141, and the stopper piece 141 is driven to move down together.

Simultaneously, can also set up extension rod 226 into extending structure: comprises a hollow sleeve rod part and an insertion part inserted into the hollow sleeve rod part, wherein the insertion part is connected with the inner bottom surface of the hollow sleeve rod part through a spring. This allows the length of the extension rod 226 to be adjusted and the stop piece 141 to be clamped between the hold-down plate 227 and the top plate 2213 of the mounting body 221.

Through the structure, the piston rod 14 can be fixed on piston rods 14 with different sizes.

Then, the connecting rod 23 is L-shaped, including a horizontal portion and a vertical portion, the horizontal portion being connected with the extension rod 226. The horizontal part includes a hollow column connected with the extension rod 226 and an insertion column connected with the vertical part, the insertion column is connected with the inner bottom of the hollow column through a spring; the inserting column is provided with a convex ring, and the inner wall of the hollow column is provided with a stop ring which is matched with the convex ring to prevent the inserting column from being separated from the hollow column. The length of the horizontal portion may be varied to allow the present application to be used with barrels 12 of different outer diameters.

In addition, vertical portion is the telescopic link for the length of vertical portion can change, can make this application can cooperate with the barrel 12 of different length. Wherein, the telescopic link is equipped with locking device, and it can select for use common structure in the life, for example mop telescopic link and locking structure thereof, and it is current and technique, no longer gives unnecessary details in this application.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. A liquid split charging auxiliary device for clinical examination is arranged on a liquid suction cylinder, the liquid suction cylinder comprises a cylinder body (12) with a liquid suction head (11), a piston (13) arranged in the cylinder body (12) and a piston rod (14) which is connected with the piston (13) and used for driving the piston (13) to move in the cylinder body (12), and one end, which is not connected with the piston (13), of the piston rod (14) is provided with a stopping piece (141) used for preventing the piston rod (14) from being completely inserted into the cylinder body (12); the method is characterized in that: the liquid subpackaging auxiliary device comprises a positioning ring (21) which is sleeved on the barrel body (12) and can move along the barrel body (12), and a stop block (211) is arranged on the outer side surface of the positioning ring (21); the piston rod (14) is not connected with one end of the piston, the fixing piece (22) is connected with one end of the piston rod (14), the connecting rod (23) is arranged on the fixing piece (22), the connecting rod (23) is provided with a convex block (24) which can be matched with the stop block (211) to enable the stop block (211) to stop the connecting rod (23) to move, and the end face, far away from the liquid suction head (11), of the convex block (24) is flush with the end face, close to the liquid suction head (11), of the piston (13); the fixing piece (22) is detachably connected with the stop piece (141) of the piston rod; the fixing piece (22) comprises an installation body (221) with a hollow inner part, a bottom plate (2211) and two opposite side plates (2212) of the installation body (221) far away from the stop piece are respectively provided with an opening, the opening of the bottom plate (2211) is provided with an operation block (222), one end of the operation block (222) is positioned at the inner top of the installation body (221) which is formed into an operation end, the other end of the operation block is connected with the installation body (221) close to a top plate (2213) of the stop piece through an elastic piece (223), two side surfaces of the operation block (222) are respectively provided with a vertical rack (2221) and are respectively meshed with a driving gear (224), the driving gears (224) are respectively meshed with a horizontal rack (225), one end of the horizontal rack (225) penetrates through the opening of the side plate (2212) to extend out of the installation body (221) and is connected with an extension rod (226), one end of the extension rod (226) close to the stop, the pressing plate (227) and the extension rod (226) form a fixing structure for grabbing the side edge of the stop piece (141); the horizontal rack (225) is located between the drive gear (224) and the top plate (2213).

2. The liquid dispensing auxiliary device for clinical laboratory according to claim 1, wherein: the driving gears (224) are all arranged in the installation body (221) through shaft bodies, the shaft bodies are all provided with transmission gears (228), one transmission gear (228) is arranged on one side of the operation block (222), and the other transmission gear (228) is arranged on the other side of the operation block (222); the horizontal racks (225) are respectively meshed with the transmission gears (228).

3. The liquid dispensing auxiliary device for clinical laboratory according to claim 1, wherein: the connecting rod (23) is L-shaped and comprises a horizontal part and a vertical part, and the horizontal part is connected with the extension rod (226).

4. A liquid dispensing auxiliary device for clinical laboratory according to claim 3, wherein: the horizontal part comprises a hollow column connected with the extension rod (226) and an insertion column connected with the vertical part, and the insertion column is connected with the inner bottom of the hollow column through a spring; the inserting column is provided with a convex ring, and the inner wall of the hollow column is provided with a stop ring which is matched with the convex ring to prevent the inserting column from being separated from the hollow column.

5. A liquid dispensing auxiliary device for clinical laboratory according to claim 3, wherein: the vertical part is a telescopic rod.

6. The liquid dispensing auxiliary device for clinical laboratory according to claim 1, wherein: the positioning ring (21) is formed by sequentially connecting a plurality of fixing blocks (213) and an elastic band (212).

7. The liquid dispensing auxiliary device for clinical laboratory according to claim 1, wherein: the cylinder body (12) is provided with scales.

8. The liquid dispensing auxiliary device for clinical laboratory according to claim 1, wherein: the cylinder (12) is provided with a holding part (121).