CN104644285A - Intratracheal injection method capable of equally injecting injected substance to left and right lung lobes of pig - Google Patents

Abstract

The invention belongs to the technical field of designs and practices of animal injection methods and particularly relates to an intratracheal injection method capable of equally injecting an injected substance to left and right lung lobes of a pig. The method comprises the following steps of (1) keeping a pig to be dosed in a back-lying state, holding the lower jaw part of the pig, downwards pressing until the neck skin is tensioned and the throat and the trachea are completely exposed, and sterilizing to be dosed through injection; (2) clamping and holding the trachea of the pig with one hand, inserting a catheter trochar on a position 1-3cm away from the heart-facing end of the throat of the pig in an inclination angle of 45-60 DEG, guiding a catheter into the trachea of the pig through the trochar when an obvious respiration sound is heard at the trochar, and pushing the catheter to the lungs of the pig; (3) then, connecting a prepared injector and the open end of the catheter, pushing the injector to inject the injected substance into the lungs of the pig; and (4) finally, after finishing fixed-point injection dosing of the lungs of the pig, drawing out the catheter, pulling out the trochar, and disinfecting a wound of the pig. The intratracheal injection method is mainly used for intratracheal dosing of pigs.

Description

A kind of can making is injected the trachea injecting method that thing equalization enters the pig left and right sides lobe of the lung

Technical field

The invention belongs to a kind of design and practice technology field of animal injecting method, be specifically related to a kind of can making and be injected the trachea injecting method that thing equalization enters the pig left and right sides lobe of the lung.

Background technology

Current; along with the development of animal husbandry and the universal of intensive culture; the respiratory tract disease of pig has become large-scale pig farm ubiquity and has been difficult to the mass-sending disease of elimination; it is the respiratory system of serious infringement pig and immune system not only; but also the death in enormous quantities of pig can be caused, cause immeasurable economic loss to pig industry.For large-scale production, vaccine immunity is one of topmost means of this type of disease of current prevention, and therefore, the specific aim vaccine developing all kinds of respiratory tract disease seems particularly important.Pig trachea injection viable bacteria (poison) liquid to vaccine immunity pig carry out attack be evaluate corresponding vaccine immunity effect the most directly, most effective method, and the method that trachea injection at present all adopts Direct perforantes trachea to inject.

To in the research and practice process of the method, applicant finds: Direct perforantes trachea and the method for injection as easy as rolling off a log cause inject and is injected thing left and right sides lobe of the lung skewness and even all enters the one-sided lobe of the lung, be also easily detained trachea because part is injected thing and is taken out of external and cause actual injection dosage and the phenomenon designing dosage and be not inconsistent along with the cough of pig, sneeze.Therefore, design a kind of can making and be injected the trachea injecting method that thing equalization enters the pig left and right sides lobe of the lung, solve above-mentioned technical problem in practice.

Summary of the invention

Technical purpose of the present invention is: for overcoming in existing trachea injecting method, be injected thing and accurately, evenly cannot enter the left and right sides lobe of the lung, and some retention is injected thing along with the cough of pig, sneeze and taken out of the external technical problem causing actual injection dosage not to be inconsistent with design dosage in trachea, a kind of can making is provided to be injected the trachea injecting method that thing accurately enters the pig left and right sides lobe of the lung.

The present invention is directed to that above-mentioned technical problem mainly solved by following technical proposals: a kind of can making be injected the trachea injecting method that thing equalization enters the pig left and right sides lobe of the lung, the method comprises the steps: (1) will need the pig of carrying out administration to carry out supination type Baoding, hold pig lower jaw portion and press to skin of neck tension, larynx, trachea expose completely, carry out disinfection to plan drug administration by injection position; (2) operator's one hand blocks pig trachea of holding with a firm grip, and in pig larynx place along centripetal end 2-3 centimeters inclination 45-60 ° of insertion conduit trocar, when trocar place hear significantly give vent to anger sound time, conduit is imported pig tracheal strips by trocar, pushes conduit to pig lungs place; (3) then, ready syringe is connected with catheter opening end by operator, and injected material is injected pig lungs by pushing syringe; (4) last, after completing the administration of pig lungs fixed-point injection, extract conduit out, extract trocar, pig wound is sterilized; Wherein, the described guide-tube structure of use is: the length of described conduit is 16-18cm, for hollow medical plastic material is made, arranges graduation mark described catheter surface is uniform; To arrange one section in the leading section of described conduit and filled the sealing column formed by sealing fluid, thus make the front end of conduit become cecum; Symmetry shifts to install and is no less than 5 apertures respectively in described sealing column rear duct wall both sides, and the spacing of aperture is about 0.3-0.4cm; The rear end of described conduit is the opening of conduit, in open end around arranging anti-skid medical adhesive plaster, and on medical proof fabric, arranges an arrow.

Described conduit trocar is 20 ^#rustless steel syringe needle.Trocar correctly puncture pig trachea time, conduit can enter trachea smoothly and be non-resistance or be judge whether conduit successfully imports the outstanding feature of trachea with the slight cough of pig pulling back and forth.

Described catheter outer diameter is less than described trocar internal diameter, and its length is 16-18cm.The weight range being convenient to the pig of trachea injection is 10-40kg, and its trachea length is in the expanded state 14-17cm, during trachea injection, injects the length of described trocar according to the body weight of pig large I appropriate regulation conduit.

Described catheter opening end wraps the medical proof fabric being about 1cm, and an arrow is scribbled in the direction of prolonging described cecum on medical proof fabric.Conduit is injected pig trachea by trocar upward with arrow, then when being connected with described conduit and applying pressure by the syringe got ready, be injected thing and just can eject from aperture with mist and enter the left and right sides lobe of the lung; Medical proof fabric rough surface, the convenient operation when syringe is connected with conduit.

Described aperture is positioned at conduit upward arrow and packed column connecting line near the symmetrical both sides of cecum, and every side is drilled with the aperture that 5 phase spacings are about 0.3-0.4cm, and makes both sides aperture in being dislocatedly distributed.Aperture phase spacing is about 0.3-0.4cm, is conducive to being injected thing and concentrates and eject; Both sides aperture can prevent conduit from causing because aperture too concentrates structure softening in being dislocatedly distributed.

Beneficial effect: this method medicine-feeding part is very accurate, simple to operation, in practice for the treatment of pig or immune effect very remarkable.

Accompanying drawing explanation

Below in conjunction with accompanying drawing, the present invention is further illustrated.

Fig. 1 is the main TV structure schematic diagram of conduit of the present invention.

Detailed description of the invention

Embodiment 1, a kind of can making are injected the trachea injecting method that thing equalization enters the pig left and right sides lobe of the lung, the method comprises the steps: (1) will need the pig of carrying out administration to carry out supination type Baoding, hold pig lower jaw portion and press to skin of neck tension, larynx, trachea expose completely, carry out disinfection to plan drug administration by injection position; (2) operator's one hand blocks pig trachea of holding with a firm grip, and in pig larynx place along centripetal end 2-3 centimeters inclination 45-60 ° of insertion conduit trocar, when trocar place hear significantly give vent to anger sound time, conduit is imported pig tracheal strips by trocar, pushes conduit to pig lungs place; (3) then, ready syringe is connected with catheter opening end by operator, and injected material is injected pig lungs by pushing syringe; (4) last, after completing the administration of pig lungs fixed-point injection, extract conduit out, extract trocar, pig wound is sterilized; Wherein, as shown in Figure 1, the described guide-tube structure of use is: the length of described conduit 01 is 16-18cm, for hollow medical plastic material is made, arranges graduation mark described conduit 01 surface is uniform; To arrange one section in the leading section of described conduit 01 and filled the sealing column 02 formed by sealing fluid, thus make the front end of conduit 01 become cecum; Symmetry shifts to install and is no less than 5 apertures 03 respectively in described sealing column 02 rear duct wall both sides, and the spacing of aperture 03 is about 0.3-0.4cm; The rear end of described conduit 01 is the opening 06 of conduit, at opening 06 place around arranging anti-skid medical adhesive plaster 04, and on medical proof fabric, arranges an arrow 05.

Verify in practice: the pathological symptom of most acute porcine contagious pleuropneumonia is both sides lobe of the lung edema, hemorrhage, interstitial is broadening, pathological tissues and normal structure boundary obvious.The Actinobacillus pleuropneumoniae living bacterial liquid of trachea injection high concentration reproducible go out typical most acute pathological symptom, just can learn the superiority-inferiority of trachea injection system according to the pathological changes uniformity of the bilateral lobe of the lung.

Laboratory cultures obtains Actinobacillus pleuropneumoniae living bacterial liquid 50ml (being provided by Xinjiang Tiankang Raise Livestock Biotechnology Co., Ltd).

Healthy susceptible piglet 10 in 6 ~ 7 week age (10 ~ 12kg) (being provided by Xinjiang Tiankang Raise Livestock Biotechnology Co., Ltd) is provided, is divided into two groups, often organize 5.

By 5 pigs supination type Baoding respectively, firmly hold pig lower jaw portion and appropriateness presses to skin of neck tension for first group, larynx, trachea expose obviously.Pig skin of neck is carried out disinfection, singlehanded card holding determines trachea, centripetal end 2 ~ 3 centimeters is prolonged in larynx portion, the middle part that tilt conduit trocar 45 ° ~ 60 ° to prolong centripetal end insertion trachea is also singlehanded fixing, when trocar place can hear significantly give vent to anger sound time, by suction have the syringe of 5ml Actinobacillus pleuropneumoniae living bacterial liquid to be connected with trocar, push hard injector handle, make to be injected thing and inject rapidly pig trachea, extract trocar and wound is carried out disinfection.

By 5 pigs supination type Baoding respectively, firmly hold pig lower jaw portion and appropriateness presses to skin of neck tension for second group, larynx, trachea expose obviously.Pig skin of neck is carried out disinfection, singlehanded card holding determines trachea, centripetal end 2 ~ 3 centimeters is prolonged in larynx portion, the middle part that tilt conduit trocar 45 ° ~ 60 ° to prolong centripetal end insertion trachea is also singlehanded fixing, when trocar place can hear significantly give vent to anger sound time, conduit 01 is imported tracheal strips by trocar and twitches back and forth and guarantees that it accurately imports, the arrow 05 of adjustment catheter opening end 06 makes it upwards, the suitable injection device of 5ml Actinobacillus pleuropneumoniae living bacterial liquid is had to be connected with catheter opening end 06 suction, comparatively high thrust is applied rapidly to injector handle, it is vaporific by aperture injection pig lungs for making to be injected thing, rapid extraction conduit 01 and trocar also carry out disinfection to wound.

Inject latter 48 hours, put to death the test pig of all survivals, together with the test pig of dying of illness during this period interior, all dissect and extract complete lung tissue and carry out observation measuring and calculating.

Result of the test sees the following form:

Note: unilateral lung leaf disease variability=lesion area/unilateral lung leaf area * 100%

Above list data result shows: this method is compared with trachea Direct perforantes injection, the left and right sides lobe of the lung injecting pig by being injected thing that more can be accurate, average, its success rate is that trachea Direct perforantes injection is incomparable, simultaneously almost directly enter lungs because being injected thing and decreasing the stimulation to trachea, effectively prevent because cough or sneeze make part be injected thing because taking the external and actual injection dosage that causes is not inconsistent with design injected dose phenomenon out of, effect is very remarkable.

Claims (1)

1. can make to be injected the trachea injecting method that thing equalization enters the pig left and right sides lobe of the lung, it is characterized in that, the method comprises the steps:

(1) will the pig of carrying out administration be needed to carry out supination type Baoding, hold pig lower jaw portion and press to skin of neck tension, larynx, trachea expose completely, carry out disinfection to plan drug administration by injection position;

(2) operator's one hand blocks pig trachea of holding with a firm grip, and in pig larynx place along centripetal end 2-3 centimeters inclination 45-60 ° of insertion conduit trocar, when trocar place hear significantly give vent to anger sound time, conduit is imported pig tracheal strips by trocar, pushes conduit to pig lungs place;

(3) then, ready syringe is connected with catheter opening end by operator, and injected material is injected pig lungs by pushing syringe;

(4) last, after completing the administration of pig lungs fixed-point injection, extract conduit out, extract trocar, pig wound is sterilized;

Wherein, the described guide-tube structure of use is: the length of described conduit is 16-18cm, for hollow medical plastic material is made, arranges graduation mark described catheter surface is uniform; To arrange one section in the leading section of described conduit and filled the sealing column formed by sealing fluid, thus make the front end of conduit become cecum; Symmetry shifts to install and is no less than 5 apertures respectively in described sealing column rear duct wall both sides, and the spacing of aperture is about 0.3-0.4cm; The rear end of described conduit is the opening of conduit, in open end around arranging anti-skid medical adhesive plaster, and on medical proof fabric, arranges an arrow.