Poultry egg injection sampler

Abstract

The invention discloses a poultry egg injection sampler, comprising an injection sampling needle and a trocar sleeved on the injection sampling needle, wherein the inner wall of the trocar is provided with a circle of receiving grooves, a support ring is accommodated in the receiving groove, and the support ring is higher than the receiving groove; the support ring is an elastic support member, and a slightly elastic and breathable bacteria-isolating membrane is fixed on the inner ring of the support ring, and the injection sampling needle passes through the bacteria-isolating membrane; a propulsion ring is provided on the outer wall of the injection sampling needle, which is used to push the support ring into the eggshell, and the support ring naturally pops open on the inner side of the shell membrane to open the bacteria-isolating membrane; when the injection sampling needle is withdrawn, the bacteria-isolating membrane covers the opening to maintain a sealed environment in the shell. In the present invention, after the injection sampling needle is withdrawn for sampling, the bacteria-isolating membrane can maintain a sealed environment in the shell to prevent external pathogenic microorganisms from entering and causing contamination, thereby replacing the traditional destructive and disposable sampling method and avoiding the waste of poultry eggs.

Description

Technical Field

[0001] The invention relates to a poultry egg sampling and testing instrument, in particular to a poultry breeding egg injection sampler. Background Art

[0002] After the egg is laid, the surface of the eggshell is quickly infected with pathogenic microorganisms through feces and bedding. These pathogenic microorganisms reproduce very quickly. According to research, the number of bacteria on the surface of the eggshell of a new egg is 100-300, 500-600 after 15 minutes, and 4000-5000 after one hour. When testing the physiological characteristics of poultry eggs at various stages and the composition of egg liquid, it is often necessary to break the shells and take samples, and the broken eggs are more susceptible to contamination by pathogenic microorganisms. Therefore, in existing physiological test studies of eggs, it is often necessary to regularly take out a batch of samples from the same batch of eggs for sampling and testing, and then statistically summarize the data. When sampling for physiological test studies at different egg stages, one egg is destroyed each time a sample is taken. This sampling method is destructive and disposable, which not only wastes eggs, but also cannot continuously sample and track the eggs at different physiological development stages, and cannot dynamically study the physiological regulation response of egg embryos after the injection of active substances. Summary of the invention

[0003] Purpose of the invention: The purpose of the present invention is to propose a poultry egg injection sampler to address the above-mentioned problems. The sampling does not affect the normal growth of the eggs, and can be used to continuously track and monitor the eggs at different physiological development stages, as well as to conduct follow-up tests on the physiological regulation response of poultry egg embryos after the injection of active substances.

[0004] Technical solution: The present invention provides a poultry egg injection sampler, comprising an injection sampling needle and a trocar sleeved on the injection sampling needle, the inner wall of the trocar is provided with a circle of accommodating grooves, a support ring is accommodated in the accommodating groove, and the support ring is higher than the accommodating groove; the support ring is an elastic support member, and a slightly elastic and bacteria-proof and breathable bacteria-proof membrane is fixed on the inner circle of the support ring, and the injection sampling needle passes through the bacteria-proof membrane; a propulsion ring is provided on the outer wall of the injection sampling needle, which is used to push the support ring into the eggshell, and the support ring naturally pops open on the inner side of the shell membrane to open the bacteria-proof membrane; when the injection sampling needle is pulled out, the bacteria-proof membrane covers the opening to maintain a sealed environment inside the shell.

[0005] The present invention changes the traditional injection sampling needle into an injection sampling needle and a cannula needle in the form of an inner and outer tube sleeve, and uses a receiving groove to install a bacterial membrane and a support ring, and uses the operation of inserting the cannula needle to send the bacterial membrane to the inner side of the shell membrane of the eggshell, and pushes out the support ring by moving the injection sampling needle, and uses the elastic support ring to open the bacterial membrane, so that it can block the holes generated by sampling, maintain the sealed environment inside the shell, and avoid external pathogenic microorganisms from entering and causing pollution, thereby replacing the traditional destructive and disposable sampling method and avoiding the waste of poultry eggs. After sampling, the breeding eggs can still maintain a closed state and continue to grow, and no waste after sampling is generated, so that the same breeding egg can be taken throughout the whole process when the breeding egg samples are collected, and the breeding eggs are continuously tracked and monitored in different physiological development stages, which can reduce the data differences generated by different experimental samples, help improve the accuracy of the test, and at the same time, can achieve the purpose of dynamic research on the physiological regulation response of the fowl egg embryo after the injection of active substances.

[0006] Furthermore, the bacterial isolation membrane is a double-layer structure, including a first bacterial isolation membrane and a second bacterial isolation membrane; when the injection sampling needle is withdrawn, the membrane through holes on the first and second bacterial isolation membranes are staggered to achieve sealing. This technical solution achieves automatic sealing when the injection sampling needle is withdrawn by staggering the membrane through holes of the two layers of bacterial isolation membranes.

[0007] Furthermore, the above-mentioned poultry egg injection sampler also includes a push rod; the cannula needle includes an insertion section, a compression section and an installation section which are connected in sequence, wherein the compression section is funnel-shaped and gradually shrinks from the installation section to the insertion section; the receiving groove is located in the insertion section; the injection sampling needle passes through the push rod, and the push rod is used to cooperate with the compression section to compress the support ring in the installation section and finally push it into the receiving groove.

[0008] Furthermore, the outer wall of the push rod is provided with a plurality of groups of telescopic rods which can be telescoped along with the inner diameter of the trocar, and the ends of the telescopic rods are provided with compression rings for pushing the support ring.

[0009] Furthermore, the bacteria-isolating membrane adopts PE polymer breathable membrane or eptfe microporous membrane.

[0010] Beneficial effects: Compared with the prior art, the present invention has the following significant advantages: after the injection sampling needle is drawn out for sampling, the bacterial isolation membrane can maintain the sealed environment inside the shell to prevent external pathogenic microorganisms from entering and causing contamination, thereby replacing the traditional destructive, disposable sampling method and avoiding the waste of poultry eggs. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the use state of the present invention;

[0012] Figure 2 yes Figure 1 A magnified view of the local area A;

[0013] Figure 3It is a schematic diagram of the coordination structure between the injection sampling needle, the support ring and the bacterial isolation membrane;

[0014] Figure 4 and Figure 5 It is a schematic diagram of the support ring installation process;

[0015] Figure 6 yes Figure 4 Cross-section view at the middle putter;

[0016] Figure 7 It is a schematic diagram of the coordination structure between the injection sampling needle and the trocar;

[0017] Figure 8 It is a schematic diagram of the structure of the bacterial membrane;

[0018] Figure numerals: 1. eggshell; 2. shell membrane; 3. injection sampling needle; 4. trocar; 41. insertion section; 42. compression section; 43. installation section; 5. receiving groove; 6. support ring; 7. bacterial isolation membrane; 71. first bacterial isolation membrane; 72. second bacterial isolation membrane; 73. membrane through hole; 8. propulsion ring; 9. push rod; 10. telescopic rod; 11. compression ring. DETAILED DESCRIPTION

[0019] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0020] See also Figures 1 to 3 A poultry egg injection sampler includes an injection sampling needle 3, a trocar 4 is movably sleeved on the injection sampling needle 3, a circle of receiving groove 5 is provided on the inner wall of the trocar 4, a support ring 6 is accommodated in the receiving groove 5, and the support ring 6 is higher than the receiving groove 5. The support ring 6 is an elastic support member, and the side ring of the support ring 6 is flat. A bacterial isolation membrane 7 is fixed to the inner circle of the support ring 6. The bacterial isolation membrane 7 adopts a membrane with slight elasticity and bacterial isolation and breathability, such as PE polymer breathable membrane, eptfe microporous membrane, etc. A propulsion ring 8 is fixed to the outer wall of the injection sampling needle 3, one end close to the needle tip. The inner side of the eggshell 1 is attached with a shell membrane 2. When sampling, an opening for the trocar 4 to pass through is opened on the eggshell 1 through the injection sampling needle 3 and the trocar 4, and the tip of the trocar 4 is inserted into the shell membrane 2. The injection sampling needle 3 is pushed inward along the trocar 4, so that the propulsion ring 8 pushes the support ring 6 out of the receiving groove 5, and the support ring 6, which is not restricted by the receiving groove 5, is naturally opened to support the bacterial membrane 7. An appropriate amount of egg liquid is drawn out of the eggshell 1 through the injection sampling needle 3 for inspection, and then the injection sampling needle 3 and the trocar 4 are drawn out, while the already opened support ring 6 is left on the inner side of the shell membrane 2, and the bacterial membrane 7 is opened and covered at the opening, so as to prevent the embryo in the eggshell 1 from contacting with the outside world and causing infection and death, and realize continuous tracking and monitoring of poultry eggs at different physiological development stages.

[0021] See also Figures 4 to 6, the injection sampling needle 3 is discarded after use. When sampling and testing of the next embryo egg is required, a new set of injection sampling needles 3 and support rings 6 are taken from the disinfection cabinet. The cannula needle 4 includes an insertion section 41, a compression section 42 and a mounting section 43 connected in sequence, wherein the compression section 42 is funnel-shaped and gradually shrinks from the mounting section 43 to the insertion section 41. The gap between the insertion section 41 and the injection sampling needle 3 is only for the support ring 6 to pass through. The inner diameter of the mounting section 43 is consistent with the outer diameter of the support ring 6 in the open state. The push rod 9 is provided with a central hole for the injection sampling needle 3 to pass through. The push rod 9 extends into the mounting section 43 and is sleeved on the injection sampling needle 3. Four groups of telescopic rods 10 are evenly fixed on the outer wall of the push rod 9 along the circumference, and the outer end of the telescopic rod 10 is fixedly connected with a compression ring 11. After a new set of injection sampling needles 3 and support rings 6 are put in, the tip of the injection sampling needle 3 falls into the insertion section 41, and the support rings 6 and support rings 6 are at the installation section 43. The push rod 9 is inserted from the tail end of the injection sampling needle 3 and pushed inward. After the support ring 6 is pushed to the compression section 42, the push rod 9 is continued to be pushed. In the process of pushing the support ring 6 inward, the compression ring 11 compresses the telescopic rod 10 inward until the support ring 6 is pushed into the receiving groove 5 at the insertion section 41. At this time, the support ring 6 is completely compressed, and the needle tip of the injection sampling needle 3 extends out of the cannula needle 4. Continue to operate to open the eggshell 1 and the shell membrane 2 for sampling. In the process of the injection sampling needle 3 extending inward, the support ring 6 is brought out by the propulsion ring 8 to make it open in the eggshell 1. After the sampling is completed, the support ring 6 and the bacterial isolation membrane 7 remain in the shell membrane 2 to complete the blocking work.

[0022] See also Figure 7 and 8 The bacteria-isolating membrane 7 includes a first bacteria-isolating membrane 71 and a second bacteria-isolating membrane 72 . The opening directions of the membrane through holes 73 on the first bacteria-isolating membrane 71 and the second bacteria-isolating membrane 72 are opposite. Before use, the injection sampling needle 3 passes through the membrane through holes 73 on the two bacterial isolation membranes in turn and is pulled to a position facing the center of the circle. When the sampling is completed and the injection sampling needle 3 is pulled outward, the first bacterial isolation membrane 71 and the second bacterial isolation membrane 72 that are not restricted by the injection sampling needle 3 return to their original positions, causing the two membrane through holes 73 that were originally facing each other to shift in position, thereby achieving the blocking of the opening on the eggshell 1. At the same time, the liquid pressure in the eggshell 1 automatically supports the bacterial isolation membrane 7 to make it close to the inner wall of the eggshell 1, thereby achieving the effect of the eggshell 1 being tightly sealed by the bacterial isolation membrane 7 after the opening, avoiding the eggshell 1 and the shell membrane 2 from being damaged after sampling, causing the embryo to be contaminated by foreign bacteria and causing death, thereby achieving continuous tracking and monitoring of poultry eggs at different physiological development stages, and at the same time, a follow-up dynamic study can be conducted on the physiological regulation response of poultry egg embryos after the injection of active substances.

Claims

1. A poultry egg injection sampler, comprising an injection sampling needle (3), characterized in that: It also includes a cannula needle (4) sleeved on the injection sampling needle (3), the inner wall of the cannula needle (4) is provided with a circle of receiving grooves (5), a support ring (6) is accommodated in the receiving groove (5), and the support ring (6) is higher than the receiving groove (5); the support ring (6) is an elastic support member, and a slightly elastic and breathable bacterial isolation membrane (7) is fixed to the inner circle of the support ring (6), and the injection sampling needle (3) passes through the bacterial isolation membrane (7); the outer wall of the injection sampling needle (3) is provided with a propulsion ring (8) for pushing the support ring (6) into the eggshell (1), and the support ring (6) naturally pops open on the inner side of the shell membrane (2) to open the bacterial isolation membrane (7); when the injection sampling needle (3) is withdrawn, the bacterial isolation membrane (7) covers the opening to maintain a sealed environment inside the shell; The bacterial isolation membrane (7) is a double-layer structure, comprising a first bacterial isolation membrane (71) and a second bacterial isolation membrane (72); when the injection sampling needle (3) is withdrawn, the membrane through holes (73) on the first and second bacterial isolation membranes are staggered, and at the same time, the liquid pressure in the eggshell (1) automatically supports the bacterial isolation membrane (7) so that it is tightly attached to the inner wall of the eggshell (1), thereby achieving sealing.

2. The poultry egg injection sampler according to claim 1, characterized in that: The invention also comprises a push rod (9); the cannula needle (4) comprises an insertion section (41), a compression section (42) and a mounting section (43) which are connected in sequence, wherein the compression section (42) is funnel-shaped and gradually shrinks from the mounting section (43) to the insertion section (41); the receiving groove (5) is located in the insertion section (41); the injection sampling needle (3) passes through the push rod (9), and the push rod (9) is used to cooperate with the compression section (42) to compress the support ring (6) in the mounting section (43) and finally push it into the receiving groove (5).

3. The poultry egg injection sampler according to claim 2, characterized in that: The outer wall of the push rod (9) is provided with a plurality of groups of telescopic rods (10) that can be telescoped along with the inner diameter of the trocar (4), and the ends of the telescopic rods (10) are provided with compression rings (11) for pushing the support ring (6).

4. The poultry egg injection sampler according to claim 1, characterized in that: The bacteria-isolating membrane (7) is made of a PE polymer breathable membrane or an eptfe microporous membrane.

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