KR19990022725A - Insert dart system - Google Patents

Abstract

The injector dart has a tubular body incorporating the solids head and one or more drug administration injector packages. The head has a braid at its front end with a toothel point with a scope face and a bevel end extending back to the body. This body is formed as a helical coil that makes the body tubular part and allows compression of the coil transitions to allow the body to be significantly firmly engaged when the dart is inserted into the object. The passage from the head to the interior of the body provides fluid communication between the injector package and the body fluid of the object. The wings extend from the head to guide the ingress of darts into the object and provide locking against withdrawal. The completed system includes at least one dart and an insertion mechanism that holds the body portion of the object in the platoon and feeds the dart generally parallel to the platoon and into the body portion.

Description

Insert dart system

Sludges, especially wild animals, have long been infused with nerve stabilizers and other drugs using subcutaneous darts propelled with a rifle gun or similar device. The dart stays in the skin of the animal and has a structure in which the filled drug is released by impact. The dart needs to be removed from the animal after a short time of use to avoid the occurrence of hepatitis or other injuries to other animals.

In other respects, there is often a need to provide animal treatment with animals over an extended period of time. There may also be a type of drug, such as growth hormone, which is detrimental to health by the animal's digestive system when the drug is administered with food. U.S. Patent No. 5,266,325, issued to Kuzma et al. On November 30, 1993, provides a consistent release of subcutaneous injection of the drug into the living tissue of a subject when extended periods of time are acceptable. It is proposed to provide a drug injector. According to Kuzman et al., The injector is introduced into the object through a cannula with a large hypodermic needle / syringe-type instrument that is removed from the subject immediately after insertion. However, drugs introduced in this way are unsatisfactory to be applied to large groups of animals. For example, it is inconvenient to disinfect individual animal hypodermic needles or to use new needles when handling cows or pigs outdoors. Thus, there is a risk that the needle contaminated by one animal contaminates the entire population.

Another drawback of the injectors utilized is that they have the property of being lifted in place. Therefore, although not impossible, it becomes very difficult to confirm whether the object received the injector. Kuzman et al. Proposed the use of radioactive material in the injector for confirmation. By the way. Outdoors this is not a satisfactory solution.

It is broadly an object of the present invention to provide a system for introducing a consistent release injector into an animal into a system which solves the shortcomings of known systems of this type. The present application specifically contemplates a system capable of inserting an injector into a large population of animals in which there is no risk of spread of disease or contamination therebetween.

Another object of the present invention is to easily detect the fact that a drug-containing injector inserted into an animal can remain in the animal for an extended period of time, while being inserted despite the consumption of the drug without using a complex instrument. It is possible.

Another object of the present invention is to insert an injector containing one or more drugs into a subject animal without the need for invasive penetration of the body of multiple animals with a common instrument.

Another object of the present invention is to provide a system and apparatus for inserting a drug-containing injector into the body of an object which is simple in use, convenient, reliable and low in cost.

According to the present invention, a dart-embedded drug injector can be easily guided and inserted into the body of a subject at a given site, such as a subcutaneous in the pig's ear, without the use of a device that invades the body of the subject .

According to a preferred embodiment of the present invention, the dart is generally a plastic material having a cylindrical solid body head and a hollow cylinder. The face of the dart head has a scope shape and the exposed edge face of the face has a fillet radius that is advanced from the hollow body and tapered downward starting from the top edge of the dart body. This fact forms a fairly long and narrow blade in the lower part of the head, and the lead edge formed at the sharp chisel point provides a through inlet for the dart into the body of the object.

Flexible stable wings are provided on both sides of the dart head. The stabilizing wing spreads outward and backward towards the hollow cylindrical body and serves as a lock or barb that prevents the dart from being pulled out of the object when introduced into the body portion of the object.

The hollow body of the dart preferably consists of a coiled material with a number of transitions into the helix. This gives some degree of flexibility to the body, allowing for changes in the body shape of the dart to conform to the dart site of the object body. The coil also creates a longitudinally compressible dart body to provide firmness to the dart inserted under pressure into the object. One or more plants, which may contain the same or foreign substances, are arranged in the hollow body. There is a passage through the dart head into the body to provide fluid communication between the fluid and the injector in the object body. The end cap is frictionally fitted into the opening behind the body. The presence of the dart inserted into the object can be determined visually or by palpating the site (eg the ear) of the object.

An advantage of the present invention is that the dart passing through the fluid of the body provides for the delivery of an injector containing one or more substances, the dart itself being inserted directly into the object, for example the pig body.

An additional advantage of the present invention is that the at least one injector carrying dart has a braided head with a sharp tip through the body fluid and through the body of the object. A dart body is one in which one or more injectors containing a substance are embedded and released into a subject such that the dart is easily inserted into the subject and has an injector containing the substance.

It is another advantage of the present invention to have a body that is rigid while one or more injector delivery darts into the object are passed through the body fluid and yet inserted into the object that can be expanded laterally to be flexible after insertion into the object. will be.

Another advantage of the present invention is that the presence of within the body portion of the subject of the drug injector incorporating the inserted dart facilitates or visually determines the body portion of the subject.

The present invention relates to a system for injecting dart into a subject and incorporating a dart into the subject, wherein the dart is injected into a subject body such as an animal.

1 is a top view of a preferred embodiment of a dart in accordance with the present invention.

FIG. 2 is a side view of the dart shown in FIG. 1. FIG.

3 is a cross-sectional view taken along line 3-3 in the direction of the arrow in the dart of FIG.

4 is a front view of the dart of FIG.

5 is an enlarged partial view of a portion of the dart of FIG. 1 showing a coil of a compressed body;

6 is a schematic top view of the entirety showing compression of the dart wing and foldability of the dart body.

FIG. 7 is a schematic side view of the whole in a view similar to FIG. 6; FIG.

8 is a top view of a dart injection system or applicator in accordance with the present invention.

9 is a left side elevational view of the insertion system of FIG. 8 with parts shown in sections to illustrate the interior of the system in more detail.

FIG. 10 is a partial cross-sectional view taken along line 9-9 of FIG. 8 after the ear of an object has been captured, showing an initial insertion of the dart. FIG.

FIG. 11 is a view similar to FIG. 9 showing the dart fully inserted. FIG.

1 to 7, the dart 10 includes a hollow tubular body 30 and a solid head 20 having an overall cylindrical shape. Darts are preferably biologically suitable plastics such as polycarbonate. The dart 10 is preferably made in one piece by injection molding. The dart head 20 is a solid piece having a top surface 22 curved downward in a scope shape from the rear end 23 with the start of the front end of the body 30. From the head rear end 23 there is a surface edge leading to a concave radius 24 extending into the lower tapered face 26. This ends at the elongated projecting narrow braid 27 with sharp cutting edges 28 with downward bevel 29. The bottom surface of the braid 27 is curved. The plow 25 creates a change from the narrow braid 27 (see FIG. 1) to the cylindrical dart body 30 to serve the purpose described in more detail below.

A pair of flexible wings 40 is formed on the outer surface of the head 20 starting at the tapered surface 26. The wing 40 is swept back and placed over the front end of the body 30. The wing 40 has a corner 41 leading to a point, and is parallel to the plane inclined to the bottom of the body as shown in FIG. 2 and along the longitudinal centerline of the dart body 30. It is placed in the horizontal plane as shown in 4. As shown in FIG. 1, each wing 40 has an inwardly angled ejection slot 42 correlated to a body finishing at a circular end. Slot 42 allows the wing to bend inward. This prevents stress generation on the wing 40 when flexed by the insertion of darts into the object.

The body 30 has a coil having a plurality of turns 32 spirally wound to form a hollow tube. The transition 32 of the coil has an opposite stop 34 forming a tab. The tab 34 has a curved shape like a coil switch and is preferably separated by 90 degrees around each side of each coil switch. The stop 34 of the coil diverter faces the stop of the next adjacent diverter, and the stop is engaged in the longitudinal direction while the body 30 is inserted into the object. This is illustrated in FIG. 5.

One or more injector packages 50 (FIGS. 1 and 3) are disposed within the body 30 and contain any of the nutritional or necessary pharmaceutical preparations or combinations thereof in any form. The package 50 is injected into the tubular body 30 through the open end of the body remote from the head 20. An end cap 54 with a spherical radius fits frictionally into the end of the body 30 remote from the head.

The hole 60 provides a traffic passage through the head 20 from its top surface 22 to the inside of the body 30. Thus, when the dart is injected into the object, there is fluid communication between the injector package 50 and the body fluid of the object that releases its contents into the object.

6 and 7 show the flexibility of the body 30 in all directions. This allows the dart to conform to the body of the object, avoiding the dart's rejection or irritation or discomfort by the body of the object and allowing normal movement of the dart body part. In FIG. 6, the wing 40 is compressed in dashed lines.

8 is a plan view of an injector dart applicator or injection system 90 embodying the present invention, and FIG. 9 is a partial cross-sectional view of the applicator system in use in more detail. System 90 includes a main body 91 that broadly includes a chamber (not shown) for receiving darts 10. At one end of the body 91, the platoon 92 is held in position by the hinge member 98 to be pivoted relative to the main body 91. In addition, the main body 91 opposing platoon 92 acts to provide a driving force to the dart 10 inside the main body 91 via a push bar 59 which accelerates the dart toward the platoon 92. Mechanisms (not shown) are also included. The propulsion mechanism may be any type of conventional mechanism, but preferably a spring actuating mechanism that can be loaded and then released to the trigger. As best shown in FIGS. 8-10, the main body 91 has a top part 93 with a bore 97 in which the dart 10 is accelerated towards the platen 92. By the hinge member 98, the platoon 92 is conveniently pivoted relative to the main body 91 to accommodate the ear E of the object into which the dart 10 is inserted. The ear E is held flat with respect to the top of the platoon 92 by the arm 99 to which it is coupled, and the ear is formed bent 90 degrees in front of the outlet opening (in the protrusion perimeter) of the bore 97. In this position, the ear remains trapped between the platoon 92 and the leg 95.

The use of the dart 10 is described below. Although described as injecting darts into the pig's ears, the darts can be used for cattle, sheep, goats, or other objects, including livestock or pets or wildlife, or elsewhere. In Figures 9 and 10, flat flattened 92 is placed opposite the top portion 93 with legs 95 extending downwards. The pig's ear E is trapped between the platoon 92 and the leg 95 and is maintained in a flat position at the top of the platoon and bent 90 degrees inward.

In use, the platen 92 preferably has a bore that is parallel to the platen such that the ear cartilage C is aligned below or generally below the bottom of the bore 97 (eg, the protruded perimeter outside of the bore). (97) It is sufficiently offset below.

The dart is inserted from the bore 97 into the exposed top surface of the ear E. With wings 40 and braided curved bottom surface generally parallel to platoon 92, the dart is moved through the ear with propulsion mechanism 94 at a sufficient speed. The narrow, sharp toothel edge 28 of the dart is inserted through the skin of the ear E with minimal resistance. Fine deflection occurs when the anterior portion of the dart penetrates the skin. As the dart moves further under the skin, the radius 24 and bottom flow 25 are corrected to neutralize the downward force. The resistance encountered at the top edge 23 allows the dart to be lifted while moving across the top surface of the cartilage. Radius 24 and wing 40 guide the dart across the cartilage while preventing the braid 27 from penetrating therethrough. The details of these various mechanisms are described in more detail below.

A thin taper 26 at the inner end of the braid 27 narrow with the radius 24 creates a drag that lifts the toothel edge 28. By having this shape, the flow 25 is additionally lifted to prevent the cutting edge 28 from penetrating the cartilage. Bevel 29 maintains cartilage deflection downwards such that cutting edge 28 continues cutting through tissue during dart insertion. As a result, the dart slides forward along the cartilage plane.

Wing 40 provides a stable direction and rotation of the dart during insertion. The wing also provides a locking feature when the dart is inserted into the object. While the dart is being inserted, the wing 40 is bent inward (shown in dashed lines in FIG. 6). After insertion into the ear, the wing is bent to its outward position (shown in solid line in FIG. 6). The wing stabilizes the dart after it enters the object. This maintains the proper alignment of the darts and minimizes resistance at the inlet. The back angle 46 (FIG. 6) on the wing 40 allows the wing to engage the body tissue and diffuses when the direction of the dart is reversed to reveal the locking feature.

During dart insertion, the coil 32 of the body possesses the high acceleration (preferably between 40 and 60 mph) imparted to the dart by the propulsion mechanism 94 and until the stop 34 engages (shown in FIG. 3). Compressed along the length of the body). This causes the dart to collapse so that it is firmly overall at the point of entry into the object.

With darts in the ear, communication occurs between the injector package 50 in the body 30 through the head passage 60 and the body liquid of the object, such as blood. This fact facilitates the release of the injector contents into the body of the object.

After inflow, if there is any movement of the dart outward of the object, complete removal of the dart is prevented by the locking wing. The coil transitions of the body are detached to some extent to allow the dart body to move more comfortably in the ear. This also provides additional communication between the injector 50 and the body fluid of the object.

The spherical radius of the body end cap 54 provides an area with the corresponding spherical radius 57 (FIG. 10) of the push bar 59 of the injection gun. This controls the direction and prevents the end cap 54 from side slipping as the dart completes its movement into the ear.

The presence of dart 10 in the object is detected visually or by palpating the dart site. It is also contemplated that the dart may be provided with a small metal or magnetic element allowing detection with a metal or magnetic detector or the like. The darts may also be equipped with simple electromagnetics to aid in detection and recognition.

The dimension of the dart 10 is determined according to the number of factors including the type and size of the injector in which the type of the object, the dart insertion depth, the insertion force required to penetrate the skin of the object, and the like are embedded. For example, in the pig's ear shown in FIGS. 8 and 9, the dart 10 has an outer diameter of about 7 mm and an overall length of about 45 mm.

While the preferred form of the invention has been described above, those skilled in the art will appreciate that additions, changes and substitutions are possible without departing from the spirit and scope of the invention as defined by the claims. For example, if not necessary, the dart 10 does not need to be accelerated into the body portion of the object by the propulsion mechanism. Instead, it is possible to inject a dart into the body portion at a low speed by manually operating the push bar 59 by slightly cutting the body portion of the object.

Claims (24)

Injector darts for insertion into an animal body, wherein the injector darts are: A head having means for penetrating the body tissue so that the entire dart can enter the body; A tubular body having a compartment for holding at least one drug input infusion container; And the tubular body is permeable to the fluid within the animal body to permit the inflow of fluid into the compartment. The injector dart of claim 1, wherein the head includes a front end thereof, the tubular body includes a rear end thereof, and the front end is sharply constructed to penetrate body tissue. 3. The injector dart of claim 2 wherein the head has an outer surface, is curved and has a surface having a scope shape. 4. The injector dart of claim 3 wherein the front end of the head is an elongated braid having a toothel shaped tip with an inward bevel. 5. The injector dart of claim 4 wherein the head face has a concave radius extending from the concave radius to the head rear end and a concave radius starting from the rear end of the braid. 3. The injector dart of claim 2 wherein said tubular body is flexible. 7. The injector dart of claim 6, further comprising an opening at an end of the body remote from the head to allow insertion of the injector into the body. The injector dart of claim 1, further comprising a passage through the head into the interior of the tubular body. 2. The injector dart of claim 1 further comprising at least one stabilizing wing extending from the head behind the body. 10. The injector dart of claim 9 wherein there is a pair of coplanar stabilized wings opposite the sides of the head. 11. The injector dart of claim 10 wherein each wing has a slot starting at the rear edge and is parallel to the body longitudinal axis to allow the wing to deflect toward the body inward. 2. The injector dart of claim 1 further comprising a plug for hermetically sealing a rear end of the tubular body remote from the head. 2. The apparatus of claim 1, further comprising: a braid extending at the front end and a head having front and rear ends; A flexible tubular body at the rear end of the head formed of coil material; At least one injector in the tubular body; And a head having a passageway in communication with the interior of the body. 2. A head according to claim 1, further comprising: a head having a forward end of the dart, with means for penetrating into the body tissue to allow entry of a generally dart into the body; A flexible tubular body having a compartment for holding at least one drug administration infusion container and having a rear end of the dart; A passage through the head of the tubular body to allow access to the compartment with fluid within the animal body; And an opening at the end of the body remote from the head to allow insertion of the injector into the body. 15. A method of injecting a consistent release composition into an animal body, which is carried out with the injector dart of claim 1 or 13 or 14, wherein the injection method is: Directing the drug injector containing the consistent excretion composite into the compartment; Injecting the infusion dart into a room over a portion of the animal body such that the dart is entirely within the body portion. The method of claim 15, wherein the body part is an animal's ear and the inserting step comprises: Maintaining the ear so that its bend angle is exposed to the dart such that the target portion extends along the path of the dart while the adjacent portion extends to the side of the passageway; Advancing the dart toward the ear such that the dart is introduced at a bending angle and advanced along the target site. A system for inserting an injection dart into an animal body consisting of a soft layer of tissue over bone or cartilage, the system comprising: A housing having an elongated bore closed at a forward opening in the housing to a dimension to receive the dart; Platen means for receiving and retaining body portions; Means for positioning the platen means associated with the housing such that the body part is disposed in front of the opening having cartilage or bone outside the protruding circumference of the bore; And means for communicating with a bore adjacent to the rear of the housing that imparts forward acceleration force to the dart received in the bore. 18. The device of claim 17, further comprising a first engagement surface formed on a housing perpendicular to the length of the bore and an opposing second engagement surface formed on the platonic means, the positioning means being first and second. And acting on the housing and the platoon means to capture the body part between the mating surfaces. 19. The method of claim 18, further comprising a third engagement surface formed in the platen means to be perpendicular to the second engagement surface, wherein the platen means engages the body part within the projecting circumference of the bore. And positioned to be maintained. A system for inserting an infusion dart of claim 1 into an animal body region of soft tissue layer over bone or cartilage, said system comprising: A housing having an elongated bore closed at a forward opening in the housing to a dimension to receive the dart; Platen means for receiving and retaining body portions; Means for positioning the platonic means associated with the housing such that the body part is located in front of the opening having cartilage or bone outside the protruding circumference of the bore; And means for communicating with a bore adjacent to the rear of the housing that imparts forward acceleration force to the dart received in the bore. A method of injecting a drug into an animal body, carried out with the system of claim 17, wherein the method comprises: Positioning the platen means in relation to the housing such that a body part is retained in the platen means and disposed in front of the opening having cartilage or bone outside the protruding perimeter of the bore; Placing an injection dart containing the drug in the bore; And employing means for accelerating the dart away from the forward opening. In a method of injecting a drug into an animal body performed by a system for inserting the infusion dart of claims 1 or 13 or 14 into an animal body portion of a soft tissue layer on a bone or cartilage, the system is characterized by A housing having an elongated bore closed at a forward opening in the housing to a receiving size, platen means for receiving and retaining body parts, means for positioning the platen means in relation to the housing, and received in the bore. And means for communicating with a bore adjacent to the rear of the housing that imparts forward directional acceleration to the dart provided, the method comprising Positioning the platen means in relation to the housing such that a body part is retained in the platen means and disposed in front of the opening having cartilage or bone outside the protruding perimeter of the bore; Placing an injection dart containing the drug in the bore; And employing means for accelerating the dart away from the forward opening. 22. The system of claim 21, further comprising a system comprising a first engagement surface formed on a housing perpendicular to the length of the bore and an opposing second engagement surface formed on the platonic means, wherein the positioning step is performed. And capturing a first portion of the ear between the first and second engagement surfaces so that an incidence bend is formed in the ear near the forward opening, positioning the housing and the platonic means in relation to each other. How to. 24. The system of claim 23, further comprising a third engagement surface formed in the platonic means to be perpendicular to the second engagement surface, wherein the positioning step further comprises the third engagement surface being the second of the ear. Positioning the platonic means associated with the housing in engagement with the portion to maintain the target area of the ear within the protruding circumference of the bore.