CN211749759U - Tissue medical treatment sampler for livestock - Google Patents

Abstract

The utility model discloses a tissue medical treatment sample thief is used to animal, animal husbandry medical instrument field. The technical scheme is as follows: a tissue medical sampler for livestock comprises a needle cylinder, a push rod, a trocar and a push rod, wherein the push rod penetrates through the tail end of the needle cylinder, the axis of the push rod is parallel to the axis of the needle cylinder, one end of the push rod is arranged at the head end of the needle cylinder, one end of the trocar is arranged at the inner end of the push rod, and the other end of the push rod penetrates through an ejector rod in the trocar. The utility model has the advantages that: the utility model provides a pair of tissue medical treatment sample thief is used to beasts, simple structure, the reliability is high, adaptability is good, maintainability is strong for it is more high-efficient, convenient to the sampling work of lymph tissue.

Description

Tissue medical treatment sampler for livestock

Technical Field

The utility model relates to a stockbreeding medical instrument field especially relates to a tissue medical treatment sample thief for livestock.

Background

With the rapid development of economy in China, the living standard of people is continuously improved, the demand of residents for meat is increasingly increased, the rapid development of the breeding industry is driven, the breeding of domestic animals in China tends to modernization and large-scale, the centralized breeding of a large number of livestock makes the key to how to effectively control infectious diseases among the animals to change, and at present, the pig breeding industry faces huge challenges under the situation of African swine fever. Early diagnosis and accurate elimination in a non-plague-suffering pig herd are crucial to control and purification of African swine fever, and epidemic situation loss can be effectively reduced. At present, pigs only sample and collect nasal and anal swabs, oral fluid and the like for early non-plague diagnosis, but false positive or false negative often appears, early diagnosis of epidemic situation is affected, and elimination opportunity is delayed. The lymphatic organ is the first-selected colonization part of the virus, can monitor non-pestilence pathogens earlier and more reliably, but the lymph node tissue of the living pig is difficult to collect, and the application and popularization of the lymph node pathogen detection and diagnosis mode of the living pig are influenced. Therefore, the research on a rapid and effective tissue sampling tool which can fully combine the use scenes and has the advantages of high matching performance, simple structure, convenient operation and urgent need to solve the problem.

How to solve the above technical problems is the subject faced by the present invention.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects of the prior art, the utility model provides a convenient and efficient lymph tissue sampling and simple and durable livestock tissue medical sampler.

In order to realize the utility model discloses the purpose, the utility model provides a tissue medical sampler for livestock, including the cylinder, wear to locate cylinder tail end, axis with the parallel push rod of axis of cylinder, axis with the axis of cylinder is parallel, and one end sets up the trocar of cylinder head end to and one end setting is in push rod inner, the other end is worn to locate ejector pin in the trocar.

Further, the trocar includes the needle stalk, sets up the pintle of needle stalk one end sets up the needle point of the needle stalk other end is seted up on the needle stalk lateral wall, be close to the sampling hole of needle point department, and set up the sampling hole is close to the barb of needle point portion.

When the lymphatic tissue samples, the adjustment push rod position makes the ejector pin tip arrange in one side that the needle point was kept away from to the sampling hole, the trocar of sample thief pierces through the needle point and treats the sampling tissue, then extract, because the effect of barb can be preserved the sampling material in the sampling hole, then press the tip that the push rod is close to the cylinder tail end, make the ejector pin tip keep away from needle point one side by the sampling hole and arrive and be close to needle point one side, at the in-process that the ejector pin was promoted, the sampling material of preserving in the sampling hole is released by the sampling hole, the operation is high-efficient, convenient effect has.

Furthermore, the ejector rod is matched with the cross section of the end part of the trocar in a sliding fit manner and the cross section of the inner wall of the needle stem, so that the sampling substance retained in the sampling hole can be completely pushed out at one time, and the sampling efficiency is improved.

Furthermore, the tissue medical sampler for the livestock also comprises a rebound knot arranged between the needle cylinder and the push rod

Construct, the convenience is pushing out back push rod and ejector pin recovery with the sampling material, and the ejector pin returns to the one side that the needle point was kept away from to the sampling hole promptly, further improves sampling efficiency.

Furthermore, the springback structure is sleeved outside the ejector rod and arranged at the inner end of the ejector rod and the needle cylinder

The spring between the head ends has simple structure and convenient operation.

Furthermore, the tissue medical sampler for the livestock also comprises a guide knot arranged between the push rod and the needle cylinder

The structure ensures that the push rod does not deflect in the process of approaching or recovering.

Furthermore, the push rod is provided with a guide disc vertical to the axis thereof, and the guide structure comprises a guide disc which is arranged in the needle cylinder

The wall-matched guide disc ensures that the push rod moves along the central line direction of the needle cylinder in the process of pushing or recovering, and has simple structure and convenient assembly, use and maintenance.

Further, the guide disc comprises a first guide disc arranged close to the outer end part of the push rod and a second guide disc arranged close to the push rod

The second guide disc arranged at the inner end part of the rod can improve the guide effect on one hand, and the spring can be limited at the inner end of the push rod through the second guide disc on the other hand.

The push rod further comprises a connecting column which is arranged at the inner end of the push rod, the axis of the connecting column is parallel to the axis of the push rod, the push rod and a spring are conveniently connected, preferably, the outer side face of the end part of the push rod is connected with the inner wall of the connecting column in a clamping mode or in threaded connection or in interference fit, and the spring is sleeved on the outer side face of the connecting column.

Further, the tissue medical sampler for the livestock also comprises a plug arranged between the needle cylinder and the trocar,

the trocar is prevented from being separated from the head end of the needle cylinder when the needle is pulled out.

The plug is connected with the needle cylinder in a threaded or clamping manner.

The barrel of cylinder sets up to two sections echelonments, and the external diameter of head end barrel is less than the external diameter in barrel middle part, the end cap with the inner wall of cylinder connection position with the outer wall cooperation of cylinder head end, the end cap with the outer wall of cylinder connection position with the outer wall cooperation in cylinder middle part, guarantee that end cap and cylinder connection position lines are smooth, avoid simultaneously causing the sight to shelter from the operation.

Furthermore, the head end of the syringe is provided with a nipple, the central line of the nipple is coincident with the central line of the syringe, i

On one hand, the guide rod can be conveniently connected with the trocar, and on the other hand, the guide rod can be guided in the installation process, so that the guide rod and the trocar can be quickly matched.

The outer end of the push rod is provided with a push rod handle, so that the operation is convenient.

The utility model has the advantages that:

(1) the tissue medical sampler for the livestock provided by the utility model has the advantages of simple operation and high sampling efficiency, and solves the problem of difficult traditional sampling;

(2) the tissue medical sampler for livestock provided by the utility model has short sampling time and less blood flow of living tissues, and effectively reduces the pollution of pathogens to the environment;

(3) the structure is simple, the reliability is high, the adaptability is good, the maintainability is strong, the use process is simple, and the application value is high.

Drawings

Fig. 1 is a schematic view of an appearance structure of embodiment 1 of the present invention;

fig. 2 is a schematic structural view of embodiment 1 of the present invention cut along the center line of the syringe;

fig. 3 is a schematic structural view of a push rod and a push rod in embodiment 1 of the present invention;

fig. 4 is a schematic structural view of the fitting between the plug and the adjusting head in embodiment 2 of the present invention;

fig. 5 is a schematic structural view of a bump and a chute in embodiment 3 of the present invention;

fig. 6 is a schematic sectional view of the cylinder along the center line according to embodiment 3 of the present invention.

Wherein the reference numerals are: 1. a push rod; 1-1, a push rod handle; 1-2, a first guide disc; 1-3, a second guide disc; 1-4, connecting columns; 1-5, bumps; 2, a top rod; 3. a spring; 4. a needle cylinder; 4-1, nipple; 4-2, a chute; 5. a trocar; 5-1, pintle; 5-2, needle peduncle; 5-3, a needle tip; 5-4, sampling holes; 5-5, barbs; 6. a plug; 7. an adjustment head.

Detailed Description

In order to clearly illustrate the technical features of the present solution, the present solution is explained below by way of specific embodiments.

Example 1

Referring to fig. 1 to 3, the embodiment of the present invention provides a tissue medical sampler for livestock, including a needle cylinder 4 with a nipple 4-1 at the head, a push rod 1 penetrating the tail end of the needle cylinder 4, the axis of which is parallel to the axis of the needle cylinder 4, a trocar 5 arranged at the end of the nipple 4-1, a push rod 2 arranged at the inner end of the push rod 1 and the other end penetrating the trocar 5, a spring 3 arranged between the inner end of the push rod 1 and the head end of the needle cylinder 4, a first guide disc 1-2 arranged near the outer end of the push rod 1, a second guide disc 1-3 arranged near the inner end of the push rod 1, and a plug 6 arranged between the needle cylinder 4 and the trocar 5;

the trocar 5 comprises a needle stem 5-2, a pintle 5-1 arranged at one end of the needle stem 5-2, a needle tip 5-3 arranged at the other end of the needle stem 5-2, a sampling hole 5-4 arranged on the side wall of the needle stem 5-2 and close to the needle tip 5-3, and a barb 5-5 arranged at the end of the sampling hole 5-4 close to the needle tip 5-3.

Preferably, the outer end of the push rod 1 is provided with a push rod handle 1-1, the inner end is provided with a connecting column 1-4, the outer side surface of the end part of the push rod 2 is in clamping connection or threaded connection or interference fit with the inner wall of the connecting column 1-4, and the spring 3 is sleeved on the outer side surface of the connecting column 1-4;

preferably, the first guide disk 1-2 and the second guide disk are in interference fit with the needle cylinder 4;

preferably, the cross section of the ejector rod 2 is matched with the cross section of the inner wall of the needle stalk 5-2;

preferably, the needle stem 5-2 penetrates through the plug 6, the pintle 5-1 is clamped with one end of the plug 6, and the other end of the plug 6 is in threaded connection or clamped connection with the head end of the needle cylinder 4;

example 2

Referring to fig. 4, the embodiment 1 is the same as the embodiment 1 except that: the tissue medical sampler for the livestock also comprises an adjusting component arranged on the plug 6 and/or the needle cylinder 4;

preferably, the adjusting member is arranged on the plug 6;

the plug 6 is provided with an external thread, and the adjusting component is provided with an adjusting head 7 with an internal thread which is matched with the external thread of the plug 6 on the inner wall;

when different individuals are sampled, the penetration depth of the needle stem 5-3 is different, and the length of the exposed part of the needle stem 5-3 can be adjusted by rotating the adjusting head so as to control the penetration depth during sampling.

Preferably, adjust head 7 and cylinder 4 interconnect position, the external diameter size of end cap 6 is not more than cylinder 4's external diameter size, can avoid causing the sight to shelter from the operation, and further preferred, adjust head 7 and cylinder 4 interconnect position, the external diameter size of adjusting head 7 equals cylinder 4's external diameter size to guarantee that the whole lines of cylinder are smooth.

Example 3

Referring to fig. 5 and 6, the embodiment 1 is the same as the embodiment 1 except that: the guiding structure comprises a plurality of projections 1-5 which are arranged at the edge of the first guiding disc 1-2 and respectively extend along the radial direction of the first guiding disc, and a plurality of chutes 4-2 which are arranged on the inner wall of the tail end of the needle cylinder 4 and respectively matched with the projections 1-5; the push rod 1 can be pushed and reset more stably;

preferably, the number of the projections 1-5 is two, and the two projections 1-5 are oppositely arranged along the radial direction of the first guide disc 1-2;

preferably, the sliding groove 4-2 comprises a first sliding groove 4-2-1, a second sliding groove 4-2-2 and a third sliding groove 4-2-3 which are connected in sequence and communicated with each other, wherein the first sliding groove 4-2-1 and the third sliding groove 4-2-3 are respectively parallel to the axial direction of the needle cylinder 4, the first sliding groove 4-2-1 extends to the end face of the outer end of the needle cylinder 4, and the second sliding groove 4-2-2 is arranged along the circumferential direction of the needle cylinder 4, so that when sampling is completed and the push rod 1 rebounds, the sliding groove 4-2 limits the bump 1-5 not to slide out of the needle cylinder 4, and the situation that the push rod 1 is ejected out of the needle cylinder 4 is avoided.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims (6)

1. The tissue medical sampler for the livestock is characterized by comprising a needle cylinder (4), a push rod (1) which penetrates through the tail end of the needle cylinder (4) and has an axis parallel to that of the needle cylinder (4), a trocar (5) which has an axis parallel to that of the needle cylinder (4) and one end arranged at the head end of the needle cylinder (4), and a mandril (2) which has one end arranged at the inner end of the push rod (1) and the other end penetrating through the trocar (5);

the trocar (5) comprises a needle stem (5-2), a pintle (5-1) arranged at one end part of the needle stem (5-2), and a needle

The needle bar is characterized in that a needle point (5-3) at the other end of the needle bar (5-2) is arranged on the side wall of the needle bar (5-2) and is close to a sampling hole (5-4) at the position of the needle point (5-3), and a barb (5-5) is arranged at the end part of the sampling hole (5-4) close to the needle point (5-3).

2. The tissue medical sampler for livestock according to claim 1, characterized in that a rebound structure between the needle cylinder (4) and the push rod (1) comprises a spring (3) sleeved outside the push rod (2) and arranged between the inner end of the push rod (1) and the head end of the needle cylinder (4).

3. Tissue medical sampler for livestock according to claim 1, characterized by further comprising a guiding structure arranged between the push rod (1) and the needle cylinder (4), the push rod (1) being provided with a guiding disc perpendicular to its axis, the guiding structure comprising the guiding disc cooperating with the inner wall of the needle cylinder (4), the guiding disc comprising a first guiding disc (1-2) arranged close to the outer end of the push rod (1) and a second guiding disc (1-3) arranged close to the inner end of the push rod (1).

4. Livestock tissue medical sampler according to claim 1, characterized in that the cross section of the end of the ejector rod (2) which is in sliding fit with the trocar (5) matches the cross section of the inner wall of the needle stem (5-2).

5. Livestock tissue medical sampler according to claim 1, characterized in that it further comprises a stopper (6) arranged between the needle cylinder (4) and the trocar (5).

6. The tissue medical sampler for livestock according to claim 1, characterized in that the head end of the needle cylinder (4) is provided with a nipple (4-1).

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