The present general inventive concept relates generally to injection needles, and, more particularly, to an injection needle having [1] a varying diameter such that a wider needle body provides added structural support for a narrower needle tip and [2] structures to scavenge blood, body secretions, and spilled injection medication.
An injection needle is typically used by a health care professional (e.g., a surgeon or nurse) to administer pharmaceutical drugs to a patient. Often, circumstances require the injection needle to be administered where physical spacing is limited. Large diameter (smaller needle gauge number) injection needles allow for precision administration of the pharmaceuticals due to their low flexibility; however, the larger the injection needle, generally the more pain and tissue damage the patient can incur. Small diameter (large needle gauge number) injection needles offer high flexibility allowing for improved maneuverability and lower tissue damage/pain. Yet, because small diameter injection needles are flexible, it is more difficult to administer the pharmaceuticals to the precise location at which the health care professional intends. Additionally, during the injection of medication, excess medication will spill out from the tissues and have an adverse effect on the patient. Blood and body fluids may also need to be evacuated, for example to permit safe visualization. An additional inventive concept includes in proximity to the needle injection tip a scavenger capacity via a suction port, a conduit to transfer the aspirate, and an exit port to attach to an external suction. For example,
The present general inventive concept provides an injection needle including a first needle portion having a first outer diameter, and a second needle portion having a second outer diameter smaller than the first outer diameter and a tip configured to penetrate tissue of a patient to deliver medication. The present general inventive concept provides an apparatus to scavenge, conduct material safely away from injection site, and deposit to an external suction device.
Additional aspects and advantages of the present general inventive concept will be set forth in part in the description which follows, and, in part, will be obvious from the description, or may be learned by practice of the present general inventive concept.
The foregoing and/or other aspects and advantages of the present general inventive concept may be achieved by an injection needle including a first needle portion having a first outer diameter, and a second needle portion having a second outer diameter, the second outer diameter being smaller than the first outer diameter, wherein the second needle portion has a tip configured to penetrate a soft tissue. The foregoing and/or other aspects and advantages of the present general inventive concept may be achieved by an injection needle including an apparatus to scavenge, conduct material safely away from injection site, and deposit to an external suction device.
The foregoing and/or other aspects and advantages of the present general inventive concept may also be achieved by an injection needle including a guide portion configured to have a first outer diameter, and a delivery portion, configured with a tip to penetrate tissue and deliver a medication, and to have a second outer diameter smaller than the first outer diameter, extending from a distal end of the guide portion, wherein the guide portion is configured to have a bend proximate the distal end such that the delivery portion extends at a predetermined angle from a line of the guide portion opposite the bend.
The foregoing and/or other aspects and advantages of the present general inventive concept may also be achieved by an injection needle including a hub portion configured to mate with a corresponding hub portion of a medication delivery device, and a needle attached at a proximal end to the hub and configured to have a first outer diameter extending in a longitudinal direction from the hub, the first outer diameter having a bend portion proximate a distal end of the needle, the bend portion having a predetermined angle matching a corresponding tissue path through which the needle will pass to enter a targeted region of the patient, the needle including a distal end configured to have a second outer diameter smaller than the first outer diameter, the second diameter terminating to a needle tip for delivery of medication into the targeted region, the first diameter being specifically sized to push away bodily tissue in the tissue path a distance sufficient to provide an opening for the second diameter to enter the targeted region at the predetermined angle to deliver medication to the targeted region.
The injection needle may further include a ridged portion formed proximate a point at which the tapering portion begins from the first outer diameter, the ridged portion having a third outer diameter larger than the first outer diameter specifically sized to abut bodily tissue at an end of the tissue path to inhibit the needle tip from penetrating beyond the targeted region.
Additional features and aspects will be apparent from the following detailed description, the drawings, and the claims.
The following example embodiments are representative of example techniques and structures designed to carry out the objects of the present general inventive concept, but the present general inventive concept is not limited to these example embodiments. In the accompanying drawings and illustrations, the sizes and relative sizes, shapes, and qualities of lines, entities, and regions may be exaggerated for clarity. A wide variety of additional embodiments will be more readily understood and appreciated through the following detailed description of the example embodiments, with reference to the accompanying drawings in which:
Reference will now be made to various example embodiments of the present general inventive concept, examples of which are illustrated in the accompanying drawings and illustrations. The example embodiments are described herein in order to explain the present general inventive concept by referring to the figures.
The following detailed description is provided to assist the reader in gaining a comprehensive understanding of the methods, apparatuses, and/or systems described herein. Accordingly, various changes, modifications, and equivalents of the methods, apparatuses, and/or systems described herein will be suggested to those of ordinary skill in the art. The described progression of processing operations described are merely examples, however, and the sequence of operations is not limited to that set forth herein and may be changed as is known in the art, with the exception of operations necessarily occurring in a certain order. Also, description of well-known functions and constructions may be omitted for increased clarity and conciseness.
Note that spatially relative terms, such as “up,” “down,” “right,” “left,” “beneath,” “below,” “lower,” “above,” “upper” and the like, may be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation illustrated in the figures. For example, if the device in the figures is turned over or rotated, elements described as “below” or “beneath” other elements or features would then be oriented “above” the other elements or features. Thus, the exemplary term “below” can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
Various example embodiments of the present general inventive concept, as described herein, provide an injection needle of varying caliber such that a first portion of the injection needle is more rigid than a second portion of the injection needle having a tip that is used to inject medication into a patient. An example embodiment may provide an injection needle including a first needle portion having a first outer diameter, and a second needle portion having a second outer diameter smaller than the first outer diameter and a tip configured to penetrate tissue of a patient to deliver medication. Thus, a user administering the medication is able to take advantage of the higher rigidity of the larger diameter portion to guide the smaller diameter portion to the desired injection point to deliver the medication. To provide even further advantage to the user administering the medication in situations that present difficult to reach places such as sinuses that are accessed through a patient's nostrils, an example embodiment of the present general inventive concept may provide injection needle including a guide portion configured to have a first outer diameter, and a delivery portion, configured with a tip to penetrate tissue and deliver a medication, and to have a second outer diameter smaller than the first outer diameter, extending from a distal end of the guide portion, wherein the guide portion is configured to have a bend proximate the distal end such that the delivery portion extends at a predetermined angle from a line of the guide portion opposite the bend.
Various example embodiments herein may describe a first portion of an injection needle that has a first outer diameter greater than a second outer diameter of a second portion of the injection needle. The first portion having the larger outer diameter may be interchangeably referred to as a “guide” portion, as the increased rigidity of the larger diameter portion may be used to more effectively guide the injection needle through various cavities, openings, etc., of the body of the patient than the conventional needle having only one continuous outer diameter, which may be too flexible for such guidance due to the required injection tip size. Similarly, the second portion having the smaller diameter and injection tip may be interchangeably referred to as a “delivery” portion, as the increased flexibility of the smaller diameter portion may be more effective in injecting the tip into the actual desired tissue.
For example, the injection needle can be specifically configured to have a first outer diameter extending in a longitudinal direction from a hub portion, the first outer diameter having a bend portion proximate a distal end of the needle to provide a predetermined angle matching a corresponding tissue path of the patient through which the needle will pass. The first diameter is sized to push bodily tissue in the tissue path away from the tissue path a distance sufficient to create an opening for the second diameter to enter the targeted region at the predetermined angle to deliver medication to the targeted region without causing the second diameter to bend.
As described herein, the present general inventive concept relates to an injection needle of varying caliber (i.e., outer diameter/gauge). Specifically, the present general inventive concept relates to an injection needle that includes a smaller diameter needle proximate a needle tip, and a larger diameter needle as the main shaft. Varying diameter injection needles have a variety of advantages, such as increased precision and a decrease in tissue damage, which correspond with low pain upon injection.
In the example embodiment illustrated in
In the example embodiment illustrated in
The needle end 206 is configured to transition the injection needle 200, specifically the main shaft 204, to a smaller diameter needle (larger gauge number, relative to the main shaft 204 gauge) so that the needle end 206 has more flexibility than the main shaft 204 (small gauge number, relative to the needle end 206), as well as a smaller presence in the tissue into which it will be injected. In the illustrated example embodiment, the needle end 206 a tapered section 210 leading to a tip 212. In various example embodiments, the tapering of the tapered section 210 may begin close to the bend 208, or may begin a predetermined distance past the bend 208. A safety stop may be provided proximate to the bend 208, near which the tapering from the main shaft 204 may begin.
As previously discussed, in some example embodiments, the needle end 206 can make an angle A with the main shaft 204 beginning at the bend 208. Depending on certain applications, the angle A can range from about 0 degrees to about 90 degrees. In the example embodiment illustrated in
The safety stop 214 may be a lip, ridge, etc., on the injection needle 200 that prevents the user of the injection needle 200 from inserting the injection needle 200 too far into the tissue of a patient. The safety stop 214 may be sized to physically stop the penetration of the injection needle 200 past the safety stop 214. The safety stop 214 may be configured to allow the user of the injection needle 200 to inject the injection needle 200 at the proper depth in the patients tissue even when the user cannot physically see the injection site. In the illustrated example nose/sinus local anesthesia injection needle embodiment, the safety stop 214 has an outer diameter of about 1.5 millimeters. In various example embodiments, the safety stop 214 may be adhered to the main shaft 204 by a variety of methods and/or adhesives, and may be formed of a different material than the injection needle 200. Various other example embodiments may omit the safety stop 214 entirely, and may rely on the tapered section 210 or the diameter of the main shaft 204 to provide a similar stopping effect.
In some example embodiments, the injection needle 200 may transition directly to the tip 212, which has a smaller diameter than the main shaft 204, immediately after the safety stop 214. In the example embodiment illustrated in
The tip 212 has a smaller outer diameter than that the main shaft 204. In some example embodiments, the tip 212 is an integral part of the injection needle 200. In other example embodiments, the tip 212 can be a modular portion of the injection needle 212. In the illustrated nose/sinus local anesthesia injection needle embodiment, the needle tip 212 can be about 10 millimeters in length and about a 27-gauge needle.
In the example embodiment illustrated in
The tapered portion 310 is also substantially similar to the tapered portion 210 of
The tip 312 has a smaller diameter than the main shaft 304. In various example embodiments, the tip 312 can be about 4 millimeters in length and have a gauge of about 27. Other various example embodiments may include different lengths and gauges.
The curved portion 308 of the main shaft is disposed proximate to the distal end of the main shaft 304, and an extension 314 of the main shaft 308 extends at the angle B from the curved portion 308. The extension 314 of the main shaft 304 beyond the curved portion 308 of the main shaft 304 has a substantially similar outer diameter as that of the main shaft 304. In various example embodiments, the extension 314 of the main shaft 304 beyond the curved portion 308 of the main shaft 304 helps give the injection needle 300 the rigidity it needs for proper injection. In some embodiments, the extension 314 of the main shaft 304 beyond the curved portion 308 is about 7.5 millimeters in length.
Although the example embodiments in
As previously described, injection needles according to the present general inventive concept may provide, according to various example embodiments, smaller diameter delivery portions that may be formed separately from the guide portions, such as in an enclosed or attached configuration, or may be formed integrally, or from the same body.
As discussed in relation to various example embodiments described herein, the bend or bend portion of the injection needle may be configured such that the relatively sturdier larger diameter guide portion is able to push away bodily tissue in a tissue path so as to provide access for the smaller diameter needle tip to enter a targeted body region at a predetermined angle to deliver medication to the targeted region. The present general inventive concept may include several such angles, such as the examples discussed herein, but is not limited to any such configuration. For example, in a medical procedure in which a medical practitioner or user wishes to deliver medication through the injection needle to, for example, the frontal sinus of a patient, the location of the sinus with respect to anatomical structures such as the middle turbinate, ethmoid bulla, middle uncinate, etc., results in a situation in which the medical practitioner needs to both reach around anatomic corners and displace anatomic structures. For example, the user may need to displace such structures as the middle turbinate and middle uncinate, and angle around (or “wrap” around), for example, the middle turbinate and ethmoid bulla, for accurate placement of the needle tip in or at the sinus. An injection needle according to various example embodiments of the present general inventive concept allows the user to both displace and reach around such structures, as the case may be. As another example procedure, a medical practitioner may need to access the maxillary sinus. Similar to the procedure employed to access the frontal sinus, to accurately access the maxillary sinus the configuration of the injection needle according to the present general inventive concept allows the user to displace the middle turbinate and angle around the middle uncinate, and the angle of the bend of the injection needle allows access to the maxillary sinus, which is laterally located to the nasal cavity. As another example, to more conveniently and accurately access the sphenoid recess (or sinus), which is located posteriorly in the nasal cavity, the length, rigidity, and angulation of the injection needle of the present general inventive concept allows the user to reach such a deep cavity by angling around the middle uncinated while displacing the middle turbinate and superior turbinate to expose the sphenoid sinus. As yet another example, to conveniently and accurately access the ethmoid sinus, the length, rigidity, and angulation of the injection needle of the present general inventive concept allows the user to reach and access the ethmoid sinuses while pushing the middle turbinate out of the way of the injection needle. As previously described herein, an angle of 37 degrees of the needle tip relative to the guide portion on the opposite end of the bend from the needle tip may be used to access one or more of these described sinuses. In various example embodiments, the injection needle may be configured with bends of different angles.
Also, as described herein, the injection needle of the present general inventive concept is no limited to applications related to nasal passages and sinuses, but may be used in a host of procedures in which such a rigid length of a guide portion aids in the placement of an angled delivery portion having a needle tip. For example, in a procedure in which a medical practitioner may need to deliver medication to a back area of the tongue of a patient, the configuration of the injection needle according to an example embodiment of the present general inventive concept provides a sufficient length to span the length of the tongue and deposit the medication, such as anesthesia at tongue base and middle and/or posterior aspects of the tongue, uvula, pharynx area, etc. In an example embodiment, a 90-degree angle at the bend of the injection needle may be desired to perform such a procedure.
While the various example embodiments illustrated and/or discussed herein have been discussed in terms of human patients, it is understood that various example embodiments of the present general inventive concept may be configured for use in veterinary procedures without departing from the scope and spirit of the present general inventive concept.
Various example embodiments of the present general inventive concept may provide an injection needle including a guide portion configured to have a first outer diameter, and a delivery portion, configured with a tip to penetrate tissue and deliver a medication, and to have a second outer diameter smaller than the first outer diameter, extending from a distal end of the guide portion, wherein the guide portion is configured to have a bend proximate the distal end such that the delivery portion extends at a predetermined angle from a line of the guide portion opposite the bend. The guide portion may be configured to have the first outer diameter at both sides extending from the bend. The injection needle may further include a hub provided at a proximal end of the guide portion; the hub being configured to mate with a corresponding hub to connect the injection needle to a medication delivery device. The guide portion and the delivery portion may be formed from a common body. The delivery portion may be configured to be tapered from the distal end of the guide portion to a predetermined point on the delivery portion. The injection needle may further include a ridged portion having a third outer diameter larger than the first outer diameter, and provided at the distal end of the guide portion, to serve as a safety stop for the delivery portion. The ridged portion may be a separate body adhered to the injection needle. The ridged portion may be formed of a separate material than the injection needle. The injection needle may further include a ridged portion proximate the distal end of the guide portion, the ridged portion having a third outer diameter larger than the first outer diameter, such that the ridged portion serves as a safety stop for the delivery portion. The injection guide portion may be more rigid than the delivery portion. The guide portion and the delivery portion may be separately formed. The delivery portion may extend through the entirety of the guide portion, the guide portion being configured as a sleeve surrounding the delivery portion. The injection needle may further include a ridged portion having a third outer diameter larger than the first outer diameter, and provided proximate the distal end of the guide portion, to serve as a safety stop for the delivery portion. The guide portion may be more rigid than the delivery portion. Both the guide portion and the delivery portion may be fixed to a hub at a proximal end of the guide portion. The delivery portion may be adhered to the guide portion.
Various example embodiments of the present general inventive concept may provide an injection needle including a first needle portion having a first outer diameter, and a second needle portion having a second outer diameter, the second outer diameter being smaller than the first outer diameter, wherein the second needle portion has a tip configured to penetrate a soft tissue. The injection needle may include a hub mounted to the first needle portion; the hub being configured to mate with other similar hubs. The second needle portion may form an angle with the first needle portion. In some example embodiments, the angle may be approximately 37 degrees. In some example embodiments, the angle may be approximately 90 degrees. The injection needle may further include a safety stop positioned at an opposite end of the second needle portion from the tip, the safety stop having a larger outer diameter than both the first needle portion and the second needle portion.
Various example embodiments of the present general inventive concept may provide an injection needle including a hub portion configured to mate with a corresponding hub portion of a medication delivery device, a needle attached at a proximal end to the hub and configured to have a first outer diameter and to extend in a longitudinal direction from the hub, and so as to bend away at a bend point proximate a distal end of the needle such that a portion of the needle at the distal end forms a predetermined angle with the longitudinal direction of the needle on the other side of the point proximate the distal end, and such that the distal end of the needle has a second outer diameter smaller than the first outer diameter to provide a needle tip for injection into soft tissue, and such that a tapering portion is provided to taper the first outer diameter to the second outer diameter, and a ridged portion provided proximate a point at which the tapering portion begins from the first outer diameter, the ridged portion having a third outer diameter larger than the first outer diameter, to form a safety stop for injection of the needle tip.
According to various embodiments of the present general inventive concept, an injection needle including a first needle portion having a first outer diameter, and a second needle portion having a second outer diameter smaller than the first outer diameter and a tip configured to penetrate tissue of a patient to deliver medication, is provided.
It is noted that the simplified diagrams and drawings do not illustrate all the various connections and assemblies of the various components, however, those skilled in the art will understand how to implement such connections and assemblies, based on the illustrated components, figures, and descriptions provided herein, using sound engineering judgment.
Numerous variations, modifications, and additional embodiments are possible, and accordingly, all such variations, modifications, and embodiments are to be regarded as being within the spirit and scope of the present general inventive concept. For example, regardless of the content of any portion of this application, unless clearly specified to the contrary, there is no requirement for the inclusion in any claim herein or of any application claiming priority hereto of any particular described or illustrated activity or element, any particular sequence of such activities, or any particular interrelationship of such elements. Moreover, any activity can be repeated, any activity can be performed by multiple entities, and/or any element can be duplicated.
While the present general inventive concept has been illustrated by description of several example embodiments, it is not the intention of the applicant to restrict or in any way limit the scope of the inventive concept to such descriptions and illustrations. Instead, the descriptions, drawings, and claims herein are to be regarded as illustrative in nature, and not as restrictive, and additional embodiments will readily appear to those skilled in the art upon reading the above description and drawings.
This application claims priority from U.S. Provisional Application No. 62/119,530, filed on Feb. 23, 2015.