CN110693506A

CN110693506A - Animal blood sampling device

Info

Publication number: CN110693506A
Application number: CN201911010145.9A
Authority: CN
Inventors: 张根华; 张帅; 张震
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-23
Filing date: 2019-10-23
Publication date: 2020-01-17

Abstract

The invention discloses an animal blood sampling device. It includes the pump body, push rod, the hose of drawing blood, cavity and back cavity before this pump body is equipped with, preceding cavity front end is equipped with the blood sampling mouth, preceding cavity lateral wall is equipped with the external tapping, external tapping detachably installs the blood sampling test tube, the hose front end of drawing blood stretches out from the blood sampling mouth, and the hose rear end of drawing blood stretches into the external tapping from the cavity in the past, preceding cavity and back cavity juncture are equipped with pump body seal chamber. This device blood sampling device easily used repeatedly can reduce the inconvenience that the disinfection brought, and the blood sampling test tube has improved blood sampling convenience and cleanliness nature with the pump body combination, reduces the pollution probability, improves blood sampling efficiency.

Description

Animal blood sampling device

Technical Field

The invention relates to the field of blood sampling devices, in particular to an animal blood sampling device.

Background

In the field of animal breeding and quarantine, it is an indispensable step to draw blood to the animal, and in the operation practice in the past, conventional blood sampling device faces some adverse factors, for example pig ear vein, birds wing vein blood sampling still use the gravity flow blood sampling mode at present, because of the structural feature of current blood sampling device, this kind of blood sampling mode operation is inconvenient to can appear polluting and extravagant phenomenon.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides an animal blood sampling device which can rapidly sample blood of animals, particularly pig ear veins and bird wing veins.

In order to achieve the technical purpose, the invention adopts the following technical scheme:

an animal blood sampling device comprises a pump body, a push rod and a blood drawing hose, wherein the pump body is provided with a front cavity and a rear cavity, the front end of the front cavity is provided with a blood sampling port, the side wall of the front cavity is provided with an external port, a blood drawing test tube is detachably installed on the external port, the front end of the blood drawing hose extends out of the blood sampling port, the rear end of the blood drawing hose extends into the external port from the front cavity, a pump body sealing cavity is arranged at the junction of the front cavity and the rear cavity, a movable pump body sealing ball in the inner cavity of the pump body sealing cavity can seal a front channel or a rear channel of the inner cavity, the front end of the push rod movably extends into the rear cavity from the sealing cover at the rear end of the pump body, a circle of piston is fixed at the outer side of the front end of the push rod, the piston slides back in a reciprocating manner under the driving of the push rod and contacts with the inner wall of the rear, the movable push rod sealing ball in the inner cavity of the push rod sealing cavity can seal the front channel or the rear channel of the inner cavity, and the rear end of the push rod is sealed and provided with an exhaust hole.

Furthermore, a spring used for resetting the push rod is arranged in the rear cavity, one end of the spring is abutted to a spring limiting clamp on the inner wall of the rear cavity 3, and the other end of the spring is fixed on the outer wall of the push rod.

Furthermore, one end of the spring, which is far away from the spring limiting clamp, is abutted against the step on the outer wall of the push rod.

Further, the sealing cover is in threaded connection with the outer wall of the rear end of the pump body and covers the rear cavity.

Further, a pressing handle is installed on the outer wall of the rear cavity.

Furthermore, the outer wall of the rear cavity is provided with a protrusion, and the protrusion and the outer edge of the sealing cover clamp and fix the pressing handle.

Furthermore, the front end of the blood drawing hose extends out of the blood taking port and is in an expanded bell mouth shape, and the outer diameter of the bell mouth is larger than that of the blood taking port.

Further, the blood sampling test tube is in threaded connection with the external interface.

Furthermore, the tail part of the push rod is blocked by a tail cover, and the tail end of the tail cover is provided with a pressing surface for a user to press.

After adopting above-mentioned scheme, this device has apparent beneficial effect. Because the pump body is internally provided with two independent chambers of a front chamber and a rear chamber, and blood is pumped into the blood drawing hose and the blood drawing test tube through two sets of two-way movable sealing devices of the pump body sealing cavity, the pump body sealing ball, the push rod sealing cavity and the push rod sealing ball, and the pressure difference of the front chamber, the rear chamber and the outside atmosphere is made through the reciprocating sliding of the push rod and the piston in the rear chamber, so that the blood can be conveniently drawn, and the blood drawing hose and the blood drawing test tube are arranged, on one hand, the disposable use of the blood drawing hose and the replaceability of the blood drawing test tube can ensure that the pump body is clean and free from pollution, only the blood drawing hose needs to be replaced, the blood drawing device is easy to be repeatedly used, the inconvenience brought by disinfection can be reduced, the blood drawing test tube is combined with the pump body, the continuous action from the blood drawing and, reduce the pollution probability and improve the blood sampling efficiency.

Drawings

FIG. 1 is a cross-sectional block diagram of an animal lancing device according to the present invention;

FIG. 2 is a front elevational view of an animal lancing device according to the present invention;

FIG. 3 is a three-dimensional block diagram of an animal lancing device according to the present invention;

the reference numbers in the figures are as follows:

1, a pump body; 2-a front chamber; 3-rear chamber; 4-pump body seal cavity; 5-pump body sealing ball; 6-blood taking port; 7, a push rod; 8, sealing the cavity by the push rod; 9-push rod sealing ball; 10-a piston; 11-pressing the handle; 12-tail cover; 13-exhaust hole; 14-blood drawing tube; 15-external interface; 16-blood sampling test tube; 17-a spring; 18-spring limit clip; 19-sealing cover.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. The following description is only for the purpose of explanation and is not intended to limit the invention.

An animal blood sampling device comprises a pump body 1, a push rod 7 and a blood sampling hose 14, wherein the pump body 1 is provided with a front cavity 2 and a rear cavity 3, the front end of the front cavity 2 is provided with a blood sampling port 6, the side wall of the front cavity 2 is provided with an external port 15, the external port 15 is detachably provided with a blood sampling test tube 16, the front end of the blood sampling hose 14 extends out of the blood sampling port 6, the rear end of the blood sampling hose 14 extends into the external port 15 from the front cavity 2, the junction of the front cavity 2 and the rear cavity 3 is provided with a pump body sealing cavity 4, a movable pump body sealing ball 5 in the inner cavity of the pump body sealing cavity 4 can plug a front channel or a rear channel of the inner cavity, the front end of the push rod 7 movably extends into the rear cavity 3 from a sealing cover 19 at the rear end of the pump body 1, the outer side of the front end of the push rod 7 is fixed with a circle of piston 10, the piston 10 is driven by the push, the push rod 7 is a hollow tubular object, a push rod sealing cavity 8 is arranged in a pipe orifice at the front end of the push rod 7, a movable push rod sealing ball 9 in the inner cavity of the push rod sealing cavity 8 can plug a front channel or a rear channel of the inner cavity, and the rear end of the push rod 7 is plugged and is provided with an exhaust hole 13.

The pump body seal cavity 4, the pump body seal ball 5, the push rod seal cavity 8 and the push rod seal ball 9 are well known in the art, and can block an inlet under the influence of air flow to generate sealing and negative pressure, and detailed description is omitted here.

Furthermore, a spring 17 for resetting the push rod 7 is arranged in the rear chamber 3, one end of the spring 17 abuts against a spring limit card 18 on the inner wall of the rear chamber 3, and the other end of the spring is fixed on the outer wall of the push rod 7.

Further, one end of the spring 17, which is far away from the spring limit card 18, abuts against a step on the outer wall of the push rod 7.

Further, the sealing cover 19 is screwed to the outer wall of the rear end of the pump body 1 and covers the rear chamber 3.

Further, a pressing handle 11 is mounted on the outer wall of the rear chamber 3.

Further, the outer wall of the rear chamber 3 is provided with a protrusion, and the protrusion and the outer edge of the sealing cover 19 clamp and fix the pressing handle 11.

The portion of the front end of the blood drawing tube 14 extending out of the blood collection port 6 is in the form of an expanded flare, and the outer diameter of the flare is larger than that of the blood collection port 6. The front opening of the blood drawing hose 14 adopts the horn mouth-shaped structure, which is beneficial to covering the blood drawing opening 6 and avoiding the pollution caused by the animal blood sticking on the blood drawing opening 6.

Further, the blood sampling test tube 16 is screwed with the external interface 15.

Furthermore, the tail part of the push rod 7 is sealed by a tail cover 12, and the tail end of the tail cover 12 is provided with a pressing surface for a user to press.

When the animal blood sampling device is used, the blood sampling test tube 16 is arranged at the external port 15, the blood sampling hose 14 is adjusted to be positioned at a designated position, so that the front end of the blood sampling hose 14 extends out of the blood sampling port 6, the rear end of the blood sampling hose 14 extends into the external port 15 and the blood sampling test tube 16 from the front cavity 2, the pig ear vein and the bird wing vein at the blood sampling target position are found, the vein at the blood sampling position is punctured by using a needle to bleed, the front end of the blood sampling hose 14 at the blood sampling port 6 of the animal blood sampling device is buckled at the blood gathering position of the blood outlet from the body surface of an animal, a user of the blood sampling device holds the blood sampling device by hand, the tail cover 12 is close to the pressing handle 11 by applying external force, so that the front end of the push rod 7 movably extends into the rear cavity 3 from the sealing cover 19 at the rear end of the pump body 1, the vacant space of the rear cavity 3 is compressed, the spring 17 is compressed, when the external force of the blood sampling device is removed, the push rod 7 retreats from the rear chamber 3 under the action of the resilience force of the spring 17, the vacant space of the rear chamber 3 is enlarged, the air is relatively thin to form negative pressure, the action of the negative pressure enables the push rod sealing ball 9 in the inner chamber of the push rod sealing cavity 8 to tend to block the front channel of the inner chamber, so that the outside air is not easy to enter the rear chamber 3 from the push rod 7, meanwhile, the pump body sealing ball 5 in the pump body sealing cavity 4 does not block the front channel, the front chamber 2 is communicated with the air channel of the rear chamber 3, the common negative pressure of the front chamber 2 and the rear chamber 3 draws the animal blood outside the blood sampling port 6 from the front end of the blood drawing hose 14 and flows into the blood sampling test tube 16, when the blood collected by pushing the push rod 7 at one time is less than the specified blood volume, the push rod 7 can be pushed again, then the push rod 7 retreats, the blood of the animal is continuously extracted until the blood volume of the blood extraction test tube 16 meets the requirement. Then the blood sampling test tube 16 is taken away, the tail part of the exposed blood drawing hose 14 is sucked by a cotton ball for harmless treatment, and then the blood drawing hose 14 is drawn from the blood sampling port 6 to finish the blood drawing process. In the whole process, the animal blood only flows through the blood drawing hose 14 and enters the blood drawing test tube 16, and the pump body 1 and other parts are not contacted and polluted, so that the cleanness and the easy cleaning performance of the blood drawing device are ensured. The blood drawing and the test tube loading become continuous actions, and manual carrying and conveying are not needed in the process, so that the convenience and the cleanness of blood drawing are improved, the pollution probability is reduced, and the blood drawing efficiency is improved.

The present invention has been described in terms of some embodiments, and is not intended to be limited to the embodiments, but rather, is intended to cover all modifications, improvements, equivalents, and alternatives falling within the spirit and scope of the invention.

Claims

1. An animal blood collection device, characterized in that: comprises a pump body (1), a push rod (7) and a blood drawing hose (14), wherein the pump body (1) is provided with a front cavity (2) and a rear cavity (3), the front end of the front cavity (2) is provided with a blood drawing port (6), the side wall of the front cavity (2) is provided with an external port (15), the external port (15) is detachably provided with a blood drawing test tube (16), the front end of the blood drawing hose (14) extends out from the blood drawing port (6), the rear end of the blood drawing hose (14) extends into the external port (15) and the blood drawing test tube (16) from the front cavity (2), the junction of the front cavity (2) and the rear cavity (3) is provided with a pump body sealing cavity (4), the front end of the pump body sealing cavity (4) can movably plug a front channel or a rear channel of the inner cavity by a movable pump body sealing ball (5), the front end of the push rod (7) movably extends into the rear cavity (3) from a sealing cover (19), the front end outside of push rod (7) is fixed with round piston (10), and this piston (10) is reciprocating sliding and with rear chamber (3) inner wall contact in rear chamber (3) under the drive of push rod (7), push rod (7) are hollow tube, push rod (7) front end mouth of pipe is equipped with push rod seal chamber (8), and mobilizable push rod ball sealer (9) can be with the preceding passageway or the back passageway shutoff of inside chamber in this push rod seal chamber (8) inside chamber, push rod (7) rear end shutoff, and be equipped with exhaust hole (13).

2. The animal lancing device of claim 1, wherein: a spring (17) used for resetting the push rod (7) is arranged in the rear cavity (3), one end of the spring (17) is abutted against a spring limiting clamp (18) on the inner wall of the rear cavity (3), and the other end of the spring is fixed on the outer wall of the push rod (7).

3. The animal lancing device of claim 2, wherein: one end of the spring (17) far away from the spring limiting clamp (18) is propped against the step on the outer wall of the push rod (7).

4. The animal lancing device of claim 1, wherein: the sealing cover (19) is in threaded connection with the outer wall of the rear end of the pump body (1) and seals the rear cavity (3).

5. The animal lancing device of claim 1, wherein: and a pressing handle (11) is arranged on the outer wall of the rear chamber (3).

6. The animal lancing device of claim 5, wherein: the outer wall of the rear cavity (3) is provided with a bulge, and the bulge and the outer edge of the sealing cover (19) clamp and fix the pressing handle (11).

7. The animal lancing device of claim 1, wherein: the part of the front end of the blood drawing hose (14) extending out of the blood taking port (6) is in an expanded horn mouth shape, and the outer diameter of the horn mouth is larger than that of the blood taking port (6).

8. The animal lancing device of claim 1, wherein: the blood sampling test tube (16) is in threaded connection with the external interface (15).

9. The animal lancing device of claim 1, wherein: the tail part of the push rod (7) is sealed by a tail cover (12), and the tail end of the tail cover (12) is provided with a pressing surface for a user to press.