Percutaneous fluid transfer device

Abstract

The present application relates to a transdermal fluid transfer device, a method of providing a transdermal fluid transfer device, and a method of administering an injection. A fluid transfer device includes a first housing, a delivery needle, a second housing, and a stopper. The second housing is translatable between a protection position and an injection position, and is biased toward the protection position. The delivery needle penetrates the stopper as the second housing translates toward the injection position. A first method includes providing a first housing and providing a second housing. A second method includes contacting the device with the injection site, translating the second housing, penetrating the stopper of the transfer device, advancing the delivery needle, translating the second housing, and sealing the delivery needle. Advantageously, the percutaneous fluid transfer device may prevent leakage and / or evaporation of fluid and / or gas from the exposed needle tip.

Description

Technical Field

[0001] The present disclosure relates generally to medical tools and devices and, more particularly, to medical tools that penetrate the skin to deliver or withdraw fluids. Background Art

[0002] Medical instruments are used to penetrate the skin to deliver or withdraw fluids, such as sharp objects, needles, and syringes. These instruments can be used to pierce a subject's skin to deliver substances and / or medications into the subject's muscles, blood vessels, and / or skin. They can also be used to extract substances from a subject, such as during phlebotomy or dialysis.

[0003] During use, these tools are often exposed to air, and the substances contained therein may escape in their fluid or even gaseous form. Patient subjects and medical practitioners may be inadvertently exposed to these substances, which can be potentially dangerous. Health care workers, in particular, may use these devices frequently (often multiple times a day), so exposure to leaks and their harmful effects may be exacerbated over the long term. Utility Model Content

[0004] One or more embodiments of the present disclosure relate to a fluid transfer device comprising a first housing, a second housing, a biasing mechanism, and a stopper. The first housing has a delivery needle fixedly attached thereto. The second housing is longitudinally translatable along a portion of the first housing between a protection position and an injection position. The biasing mechanism biases the second housing toward the protection position. The stopper is attached to a distal end of the second housing. Furthermore, when the second housing is in the protection position, the second housing encapsulates the tip of the delivery needle, and when the second housing translates between the protection position and the injection position, the tip penetrates the stopper, and when the sliding housing is in the injection position, the tip is exposed.

[0005] One or more embodiments of the present disclosure relate to a fluid transfer device comprising a first housing and a second housing. The first housing has a fixedly attached delivery needle. The second housing has a stopper at a distal end and is longitudinally translatable along a portion of the first housing between a protected position and an injection position. Furthermore, the second housing is biased toward the protected position, and when the second housing translates between the protected and injection positions, the needle penetrates the stopper.

[0006] One or more embodiments of the present disclosure relate to a method for providing a fluid transfer device. The method includes the following steps: providing a first housing having a fixedly attached delivery needle; and providing a second housing having a stopper at a distal end, the second housing being longitudinally translatable along a portion of the first housing between a protected position and an injection position. Furthermore, the second housing is biased toward the protected position, and when the second housing translates between the protected position and the injection position, the needle penetrates the stopper.

[0007] One or more embodiments of the present disclosure relate to a method for administering an injection using a transdermal fluid transfer device. The method comprises the following steps: contacting a stopper of the transfer device with an injection site; translating a second housing of the transfer device from a protective position to an injection position; piercing the stopper of the fluid transfer device with a delivery needle; advancing the delivery needle into the injection site; translating the second housing from the injection position to the protective position; and sealing the delivery needle with the stopper.

[0008] It should be understood that, in light of the present disclosure, the various configurations of the subject technology will become clear to those skilled in the art, wherein the various configurations of the subject technology are shown and described by way of example. As will be appreciated, the subject technology can have other and different configurations and its several details can be modified in various other aspects, all of which do not depart from the scope of the subject technology. Therefore, the overview, drawings and detailed description are considered to be illustrative in nature, rather than restrictive. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The accompanying drawings are included to provide a further understanding and are incorporated in and constitute a part of this specification, illustrate the disclosed embodiments and, together with the description, serve to explain the principles of the disclosed embodiments. In the drawings:

[0010] Figure 1 is a perspective view of a transcutaneous fluid transfer device having a first housing, a second housing in an injection position, a biasing mechanism, and a stopper according to some embodiments of the present disclosure.

[0011] Figure 2 is a perspective view of a transcutaneous fluid transfer device having a first housing, a second housing in a protected position, a biasing mechanism, and a stopper according to some embodiments of the present disclosure.

[0012] Figure 3 is a top view of a transcutaneous fluid transfer device having a first housing, a second housing in an injection position, and a filling cap according to some embodiments of the present disclosure.

[0013] Figure 4is a top view of a transdermal fluid transfer device having a first housing, a second housing in an injection position, and a vial according to some embodiments of the present disclosure.

[0014] Figure 5A is a perspective view of a spherical stopper according to some embodiments of the present disclosure.

[0015] Figure 5B is a perspective view of an oval-shaped plug according to some embodiments of the present disclosure.

[0016] Figure 5C is a perspective view of a capsule-shaped plug according to some embodiments of the present disclosure.

[0017] Figure 5D is a perspective view of a prismatic or cubic plug according to some embodiments of the present disclosure.

[0018] Figure 5E is a perspective view of a prismatic or cylindrical plug according to some embodiments of the present disclosure.

[0019] Figure 6 According to various aspects of the present disclosure Figure 1 A cross-sectional top view of a subcutaneous fluid transfer device is shown.

[0020] Figure 7 is a hybrid view showing a perspective view of a delivery needle and a stopper and a cross-sectional view of a second housing according to various aspects of the present disclosure.

[0021] Figure 8 is a flow chart outlining a first method of administering an injection using a transdermal fluid transfer device according to some embodiments of the present disclosure.

[0022] Figure 9 is a flow chart outlining a second method of providing a transcutaneous fluid transfer device according to various aspects of the present disclosure. DETAILED DESCRIPTION

[0023] In the following detailed description, many specific details are set forth to provide a full understanding of the subject technology. It should be understood that the subject technology can be practiced without these specific details. In other cases, well-known structures and techniques are not shown in detail to avoid confusing the subject technology.

[0024] In addition, although this description sets forth specific details of various embodiments, it should be understood that this description is illustrative only and should not be interpreted as limiting in any way. Various applications and modifications of such embodiments that may occur to those skilled in the art are also included in the general concepts described herein.

[0025] Now go to Figure 1, a transcutaneous fluid transfer device is generally indicated by reference numeral 1. The transcutaneous fluid transfer device may include a first housing 10, a second housing 30, a biasing mechanism 50, and a stopper 40. The first housing may include a fixedly attached delivery needle 20 having a tip 22. The second housing 30 may be longitudinally translated along a portion of the first housing 10 between a protective position and an injection position, wherein the biasing mechanism 50 may bias the second housing 30 toward the protective position. The stopper 40 may be attached to the distal end 34 of the second housing 30.

[0026] Figure 1 The transfer device 1 is shown when the second housing 30 is in the injection position. Figure 2 , shows the same device 1 and components when the second housing 30 is in the protective position. Figure 2 As shown, when in the protective position, the second housing 30 can enclose the tip 22 of the delivery needle 20. Figure 1 , when the second housing 30 translates between the protection position and the injection position, the tip 22 can penetrate the stopper 40 so that the tip 22 is exposed when the second housing 30 is in the injection position.

[0027] Continue to refer Figure 1 In another embodiment of the present disclosure, a transcutaneous fluid transfer device 1 may include a first housing 10 and a second housing 30. The first housing 10 may include a delivery needle 20. In various embodiments, the delivery needle 20 may be fixedly attached to the first housing 10, removably attached to the first housing 10, and / or may be fluidly connected to the core 12 of the first housing 10.

[0028] Next, the second housing 30 may include a distal end 34 and a plug 40 located at the distal end 34. Figure 1 and Figure 2 The second shell 30 can be along a portion of the first shell 10 Figure 1 Injection sites shown and Figure 2 The second housing 30 can be longitudinally translated between the protection position shown, and longitudinally translated between the protection position and the injection position. In addition, the second housing 30 can be biased toward the protection position, and the delivery needle 20 can penetrate the stopper 40 when the second housing 30 translates between the protection position and the injection position.

[0029] Continue to refer Figure 1 and Figure 2In some embodiments, the first housing 10 may include a longitudinal rail 12 having a shelf 14 at its distal end, and the second housing 30 may include a slot 32 configured to receive the longitudinal rail 12. In embodiments, the slot 32 may provide a clearance fit for the rail 12 that prevents the shelf 14 from passing over it. In the same or other embodiments, the initially free-floating second housing 30 may be attached to the first housing 10 by inserting the shelf 14 and rail 12 through the slot 32. Furthermore, in the same or other embodiments, the second housing 30 may be irreversibly attached. For example, the shelf 14 may be tapered, enabling the shelf 14 to be advanced through the slot 32 in a first direction but preventing retraction in the opposite direction. In some embodiments, the first housing 10 may include two longitudinal rails 12, and the second housing 30 may include two slots 32, each configured to receive one rail 12. However, it should be understood that other devices and designs for longitudinally translating the second housing 30, such as roller tracks or linear bearings, are also possible and contemplated.

[0030] Continue to refer Figure 1 and Figure 2 In some embodiments, the fluid transfer device 1 may further include a biasing mechanism 50 that biases the second housing 30 toward the protected position. In some embodiments, the biasing mechanism 50 may be a spring. For example, the biasing mechanism 50 may be a compression spring having a proximal end that presses against the first housing 10 and a distal end that presses against the second housing 30 and / or the stopper 40. In other embodiments, alternative biasing mechanisms are also possible and contemplated, such as, but not limited to, disc springs, wave springs, and magnetic devices.

[0031] Now go to Figure 6 , provides a cross-sectional top view of the fluid transfer device 1. Figure 7 , provides a hybrid view showing sections of the delivery needle 20, the stopper 40, and the second housing 30. In both figures, the second housing 30 is shown in a protective position. According to some embodiments, when the second housing 30 is in the protective position, the second housing 30 can enclose the tip 22 of the delivery needle 20. For example, the second housing 30 and / or its components can protect from external physical contact with the tip 22. In the same or other embodiments, when the second housing 30 is in the protective position, the stopper 40 can enclose and seal the tip 22. For example, the stopper 40 can prevent fluids or gas vapors from entering or leaving the tip 22. In some configurations, the stopper 40 can create an airtight seal against the tip 22. And in other configurations, the stopper 40 can seal the tip 22, thereby preventing only liquids from entering, only specific molecules from entering, only molecules of a specific size, state, or type from entering, or according to other filtering mechanisms known in the art.

[0032] like Figure 6 and Figure 7 As shown, in many embodiments, the tip 22 can partially penetrate the stopper 40. However, in other embodiments, when the second housing 30 is in the protective position, the tip 22 can not reach the stopper 40 while remaining enclosed by the second housing 30. In addition, various lengths of the shaft 24 of the needle 20 can also be protected by the second housing 30 without departing from the present disclosure.

[0033] In some embodiments, the plug 40 can include an enclosed portion 42 and an exposed portion 44. In some of the configurations described above, the tip 22 can penetrate only the enclosed portion 42, and in other configurations, can penetrate both portions 42, 44.

[0034] Back to Figure 1 and Figure 2 , the tip 22 of the needle 20 can completely penetrate the stopper (ie, advance through the stopper 40) when the second housing 30 is translated distally between the protection position and the injection position. Figure 1 As shown, the tip 22 of the delivery needle 22 can be exposed. For example, the tip 22 can be exposed to air, the tip 22 can be accessed to deliver or withdraw fluid to or from an injection site, and / or the tip 22 can be accessed to interface with other medical devices or other components of the fluid transfer device 1.

[0035] Figure 3 Another such component of the fluid transfer device 1 is shown in the form of a filling cap 2 . Figure 4 Another such component of the fluid transfer device 1 is shown in the form of a vial 3. A filling cap 2 can provide additional protection for the needle 20, further prevent fluid and / or vapor from leaking from the needle 20, receive fluid from the needle 20 and control the injection dose, and / or perform other purposes common in the art. The vial 3 can store chemicals, medications, tinctures, etc. for injection.

[0036] refer to Figure 3 In some embodiments, the fluid transfer device 1 can include a filling cap 2 removably attached to the first housing 10. The filling cap 2 can further include a cap housing 60 and a cap plug 70 that form a sealed interior 80. In some embodiments, the cap housing 60 can further include a lip 62 configured to lock onto the septum 14 of the first housing 10.

[0037] Continue to refer Figure 3When filling cap 2 is attached to first housing 30, stopper 40 can contact closure 70. Thus, as second housing 30 translates between the protective position and the injection position, needle 20 can penetrate both stopper 40 and closure 70 before entering sealed interior 80. Tip 22 can be completely shielded from external exposure and may not be exposed until it reaches sealed interior 80. In various embodiments, closure 2 can be hermetically sealed, allow some air to pass through, allow only certain molecular types to pass through, or can be sealed to other levels known in the art. In the same or other embodiments, filling cap 2 can receive delivered fluid 98 from delivery needle 20 and store the fluid within sealed interior 80. For example, filling cap 2 can be used to measure a drug dose and release the drug dose from needle 20 prior to injection. In some embodiments, after fluid 98 has been deposited within sealed interior 80, second housing 30 can translate back to the protective position. Fluid 98 can then be retained by cap housing 60 and closure 70, while needle tip 22 can be sealed by stopper 40.

[0038] Now refer to Figure 4 In some embodiments, the fluid transfer device 1 can include a vial 3. The vial 3 can include a stored fluid 99 and a pierceable membrane 90. To transfer the fluid 99 from the vial 3 to the delivery needle 20, the pierceable membrane 90 can be placed in contact with the stopper 40, and when the second housing 30 translates between the protection position and the injection position, the delivery needle 20 can pierce the membrane 90. Thus, the tip 22 can be prevented from being exposed to the outside and may not be exposed until it reaches the interior of the vial 3.

[0039] Now go to Figures 5A-5E , showing several different embodiments of the plug 40. In these and other embodiments, the plug 40 can have different shapes and can be made of different material compositions. For example, the plug 40 can be Figure 5A The spherical plug shown, Figure 5B The oval plug shown or Figure 5C In some embodiments, the plug may be a prism with a flat contact surface, such as Figure 5D The cube plug shown or Figure 5E The cylindrical plug shown. In other embodiments, the plug can have an angled contact surface or a curved contact surface. It will be understood that the foregoing figures are for illustrative purposes only, and many other shapes and geometries of the plug 40 are possible and foreseeable.

[0040] In some embodiments, stopper 40 can be made of a self-healing material. For example, stopper 40 can include a self-healing polymer and microstructures that allow stopper 40 to be repeatedly punctured by needle 20 without losing its sealing function. In some embodiments, stopper 40 can be made of polyisoprene. Furthermore, in those embodiments of the present disclosure that include a filling cap 2, cap 70 can be made of the same material as stopper 40 or a different material.

[0041] In some embodiments, the stopper 40 can be replaceable and can be mounted to and / or removed from the second housing 30. The stopper 40 can also be interchangeable in shape and material so that a replacement stopper 40 need not be the same as the one being replaced. In some embodiments, the shape and material of the stopper 40 can be adapted to the type, location, and angle of the intended injection. For example, the material of the stopper 40 can be selected based on the drug being administered, its level of danger, and its vaporization characteristics. According to another example, the shape of the stopper 40 can be selected so that the contact surface is parallel to or tangential to the injection angle. And in other embodiments, without departing from the present disclosure, the shape and material of the stopper 40 can be selected based on other injection criteria.

[0042] refer to Figure 7 In some embodiments, stopper 40 can include a closed portion 42 and an exposed portion 44. Closed portion 42 can be closed by distal end 34 of second housing 30. In some embodiments, closed portion 42 and exposed portion 44 can be made of different materials. For example, exposed portion 44 can be made of self-healing polyisoprene, while closed portion 42 can be made of a non-self-healing material but shaped to include a hollow core for needle 20 to translate through. In the same or other embodiments, exposed portion 44 can be separated and / or replaced from closed portion 42.

[0043] Now go to Figure 6 In some embodiments, the first housing 10 can include a leak-proof mating mechanism 19. For example, the device 1 can be modular and attachable to other medical tools commonly used in fluid transfer procedures, such as syringes or catheters. In some embodiments, the mating mechanism 19 can be a Luer lock fitting.

[0044] Now go to Figure 9, a method of providing a transcutaneous fluid transfer device is outlined and generally designated by the reference numeral 900. The method 900 may include first providing a first housing (910) comprising a fixedly attached delivery needle. Next, the method 900 may include providing a second housing (920) that is longitudinally translatable along a portion of the first housing between a protection position and an injection position. The second housing may be biased toward the protection position, and the needle may penetrate the stopper as the second housing translates between the protection position and the injection position.

[0045] In some embodiments, method 900 may further include providing a filling cap (930). The filling cap may include a cap housing and a cap plug, the cap housing and the cap plug forming a sealed interior. Next, the filling cap may be removably attached to the first housing (940) such that the cap plug contacts the cap. In the same or other embodiments, method 900 may further include delivering fluid from the delivery needle to the filling cap without exposing the tip of the needle (950). More specifically, this step 950 may include translating the second housing from a protective position to an injection position and pushing the delivery needle through the cap plug.

[0046] In some embodiments, method 900 may further include providing a medicine vial (960). The medicine vial may include a pierceable membrane and a stored fluid. In the same or other embodiments, method 900 may further include withdrawing the stored fluid from the medicine vial into a delivery needle without exposing the tip of the needle (970). More specifically, this step 970 may include contacting the pierceable membrane with the stopper, translating the second housing from the protective position to the injection position, advancing the delivery needle through the pierceable membrane, and receiving the fluid into the delivery needle.

[0047] It should be understood that without departing from the scope of the present disclosure, the steps of the aforementioned method 900 may occur in an order different from that shown, one or more steps may be omitted, one or more steps may be inserted, and the method 900 may be repeated and / or may be combined with or performed simultaneously with other methods.

[0048] Now go to Figure 8 , a method of administering an injection using a transdermal fluid transfer device is generally indicated by reference numeral 800. Method 800 may include first contacting a stopper of the transfer device to an injection site (820). Next, method 800 may include translating a second housing of the transfer device from a protective position to an injection position (830). The stopper of the transfer device may then be penetrated by a delivery needle (840), the delivery needle may be advanced into the injection site (850), the second housing may be translated from the injection position to the protective position (860), and the delivery needle may be sealed by the stopper (870).

[0049] In some embodiments, method 800 may further include first aligning the stopper with the injection angle (810). For example, the shape of the stopper may be suitable for the type of injection, such as intramuscular injection, subcutaneous injection, intravenous injection, etc., and the contact surface of the stopper may be aligned with the corresponding injection angle. In some embodiments, this step 810 may precede the remaining steps of administration method 800.

[0050] And in the same or other embodiments, method 800 can further include sealing and restoring the plug (880) when the second housing is in the protective position. In some embodiments, this step 880 can occur after the remaining steps of method 800 are applied.

[0051] It should be understood that without departing from the scope of the present disclosure, the steps of the aforementioned method 800 may occur in an order different from that shown, one or more steps may be omitted, one or more steps may be inserted, and the method 800 may be repeated and / or may be combined with or performed simultaneously with other methods.

[0052] In some embodiments, any one of the clauses herein can depend on any one of the independent clauses or any one of the dependent clauses. In one aspect, any one of the clauses (e.g., dependent clauses or independent clauses) can be combined with any other one or more clauses (e.g., dependent clauses or independent clauses). In one aspect, a claim can include some or all of the words (e.g., steps, operations, means or parts) narrated in a clause, sentence, phrase or paragraph. In one aspect, a claim can include some or all of the words narrated in one or more clauses, sentences, phrases or paragraphs. In one aspect, some of the words in each of the clauses, sentences, phrases or paragraphs can be removed. In one aspect, additional words or elements can be added to a clause, sentence, phrase or paragraph. In one aspect, the subject technology can be implemented without utilizing some of the parts, elements, functions or operations described herein. In one aspect, the subject technology can be implemented utilizing additional parts, elements, functions or operations.

[0053] Description of the subject technology

[0054] For example, the subject technology is illustrated according to the various aspects described below. For convenience, various examples of various aspects of the subject technology are described. These are provided only as examples and do not limit the subject technology.

[0055] A fluid transfer device comprising: a first housing including a fixedly attached delivery needle; a second housing capable of longitudinally translating along a portion of the first housing between a protected position and an injection position; a biasing mechanism for biasing the second housing toward the protected position; and a stopper attached to a distal end of the second housing, wherein the second housing encloses a tip of the delivery needle when the second housing is in the protected position, the tip penetrates the stopper when the second housing translates between the protected position and the injection position, and the tip is exposed when the second housing is in the injection position.

[0056] A fluid transfer device comprising: a first housing including a fixedly attached delivery needle; and a second housing including a stopper at a distal end thereof and capable of longitudinally translating along a portion of the first housing between a protective position and an injection position, wherein the second housing is biased toward the protective position, and the needle penetrates the stopper when the second housing translates between the protective position and the injection position.

[0057] A fluid transfer device further includes a biasing mechanism that biases the second housing toward a protected position.

[0058] A fluid transfer device wherein the biasing mechanism is a spring.

[0059] A fluid transfer device wherein the second housing encapsulates a tip of the delivery needle when the second housing is in a protective position.

[0060] A fluid transfer device wherein the stopper encapsulates and seals the tip when the second housing is in the protective position.

[0061] A fluid transfer device, wherein the tip of the delivery needle is exposed when the second housing is in the injection position.

[0062] A fluid transfer device further comprises: a filling cap removably attached to the first housing, the filling cap having a cap housing and a cap plug, the cap housing and the cap plug forming a sealed interior, wherein the cap plug contacts the stopper.

[0063] A fluid transfer device wherein the needle penetrates the closure when the second housing translates between the protection position and the injection position.

[0064] A fluid transfer device wherein the filling cap receives delivered fluid from the delivery needle and stores the delivered fluid within the sealed interior.

[0065] A fluid transfer device further comprising: a vial comprising a stored fluid and a pierceable membrane in contact with the stopper, wherein the delivery needle pierces the membrane when the second housing translates between the protection position and the injection position.

[0066] A fluid transfer device, wherein the first housing further comprises a longitudinal rail having a septum at a distal end; and the second housing further comprises a slot configured to receive the longitudinal rail.

[0067] A fluid transfer device, wherein the first housing includes two longitudinal rails and the second housing includes two slots, each slot being configured to receive one of the longitudinal rails.

[0068] A fluid transfer device, wherein the stopper is one of a spherical shape, an oval shape, and a prismatic shape having a flat contact surface.

[0069] A fluid transfer device wherein the stopper comprises an angled flat contact surface.

[0070] A fluid transfer device, wherein the stopper further comprises an exposed portion and a closed portion, and the exposed portion and the closed portion comprise different materials.

[0071] A method of providing a fluid transfer device, the method comprising: providing a first housing including a fixedly attached delivery needle; and providing a second housing including a stopper at a distal end, the second housing being longitudinally translatable along a portion of the first housing between a protection position and an injection position, wherein the second housing is biased toward the protection position, and the needle penetrates the stopper when the second housing translates between the protection position and the injection position.

[0072] A method further comprising the steps of providing a filling cap comprising a cap housing and a cap plug, the cap housing and cap plug forming a sealed interior; and removably attaching the filling cap to the first housing such that the cap plug contacts the stopper.

[0073] A method further comprising the step of delivering fluid from the delivery needle to the filling cap without exposing the tip of the needle, the step comprising: translating the second housing from a protecting position to an injecting position; and pushing the delivery needle through the cap.

[0074] A method further comprising: providing a vial comprising a pierceable membrane and a stored fluid; contacting the pierceable membrane with the stopper; translating the second housing from a protective position to an injection position; pushing the delivery needle through the pierceable membrane; and receiving the fluid into the delivery needle.

[0075] A fluid transfer device wherein the stopper is replaceable and interchangeable in shape and material.

[0076] A fluid transfer device wherein the shape and material of the stopper are adapted to the type, location, and angle of injection.

[0077] A method for administering an injection using a fluid transfer device, comprising the steps of: contacting a stopper of the transfer device with an injection site; translating a second housing of the transfer device from a protective position to an injection position; piercing the stopper of the subcutaneous fluid transfer device with a delivery needle; advancing the delivery needle into the injection site; translating the second housing from the injection position to the protective position; and sealing the delivery needle with the stopper.

[0078] A fluid transfer device comprising: a delivery needle; and a housing comprising a proximal portion and a distal portion, the distal portion having a distal end and a stopper located at the distal end, wherein the distal portion is longitudinally translatable along a portion of the proximal portion, the distal portion is distally biased, and when the distal portion translates distally, the delivery needle penetrates the stopper.

[0079] This disclosure is provided to enable any person skilled in the art to practice the various aspects described herein. This disclosure provides various examples of the subject technology, and the subject technology is not limited to these examples. Multiple modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects.

[0080] Unless expressly specified otherwise, elements referred to in the singular are not intended to mean "one and only one," but rather "one or more." Unless expressly specified otherwise, the term "some" refers to one or more. Pronouns in the masculine gender (e.g., his) include the feminine and neuter genders (e.g., her and its), and vice versa. Headings and subheadings, if any, are used for convenience only and do not limit the present disclosure.

[0081] The word "exemplary" is used herein to mean "serving as an example or illustration." Any aspect or design described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other aspects or designs. In one aspect, the various alternative configurations and operations described herein may be considered to be at least equivalent.

[0082] Phrases such as "aspects" do not imply that such aspects are essential to the subject technology or that such aspects apply to all configurations of the subject technology. Disclosure relating to an aspect may apply to all configurations or to one or more configurations. An aspect may provide one or more examples. Phrases such as "an aspect" may refer to one or more aspects, and vice versa. Phrases such as "an embodiment" do not imply that such embodiment is essential to the subject technology or that such embodiment applies to all configurations of the subject technology. Disclosure relating to an embodiment may apply to all embodiments or to one or more embodiments. An embodiment may provide one or more examples. Phrases such as "an embodiment" may refer to one or more embodiments, and vice versa. Phrases such as "configurations" do not imply that such configuration is essential to the subject technology or that such configuration applies to all configurations of the subject technology. Disclosure relating to a configuration may apply to all configurations or to one or more configurations. A configuration may provide one or more examples. Phrases such as "configurations" may refer to one or more configurations, and vice versa.

[0083] In one aspect, unless otherwise indicated, all measurements, values, ratings, positions, sizes, dimensions, and other specifications in this specification, including those set forth in the appended claims, are approximate and not exact. In one aspect, they are intended to have a reasonable range consistent with the functions to which they are related and with custom in the art to which they pertain.

[0084] In one aspect, the term "coupled" or the like may refer to a direct coupling. In another aspect, the term "coupled" or the like may refer to an indirect coupling.

[0085] Terms such as "top," "bottom," "front," and "back" as used in this disclosure should be understood to refer to an arbitrary reference frame other than the common gravitational reference frame. Thus, the top surface, bottom surface, front surface, and back surface may extend upward, downward, diagonally, or horizontally in the gravitational reference frame.

[0086] Without departing from the scope of the subject technology, the various items may be arranged differently (e.g., arranged in a different order, or divided in a different manner). All structural and functional equivalents of the elements of the various aspects described throughout this disclosure are known to or will become known to those of ordinary skill in the art and are expressly incorporated herein by reference and are intended to be covered by the claims. In addition, regardless of whether such disclosure is explicitly recited in the claims, the content disclosed herein is not intended to be dedicated to the public. Pursuant to the provisions of the sixth paragraph of 35 U.S.C. § 112, an element of a claim will not be interpreted unless the phrase "means for..." is used to clearly recite the element, or in the case of a method claim, the phrase "step for..." is used to recite the element. In addition, for the scope of the terms "including," "having," etc. used, such terms are intended to be inclusive in a manner similar to the term "including," as interpreted when "including" is used as a transitional word in the claims.

[0087] The title, background technology, utility model content, illustrations and abstract of the present disclosure are incorporated into this disclosure and are provided as illustrative examples of the present disclosure, rather than as restrictive descriptions. Submitting this application is based on the understanding that they will not be used to limit the scope or meaning of the claims. In addition, in the specific embodiments, it can be seen that the description provides illustrative examples, and in order to simplify the present disclosure, various features are combined together in various embodiments. This disclosure method should not be interpreted as reflecting the intention that the subject matter claimed requires more features than those explicitly stated in each claim. On the contrary, as reflected in the attached claims, the utility model subject matter lies in less than all the features of a single disclosed configuration or operation. The attached claims are thus incorporated into the detailed description, with each claim independently serving as a separately claimed subject matter.

[0088] The claims are not intended to be limited to the aspects described herein, but are to be accorded the full scope consistent with the language of the claims and including all legal equivalents. Nonetheless, no claim is intended to encompass subject matter that fails to meet the requirements of 35 U.S.C. §§ 101, 102, or 103, nor should they be construed in such a manner.

Claims

1. A transcutaneous fluid transfer device, characterized in that The transcutaneous fluid transfer device comprises: a first housing including a fixedly attached delivery needle; a second housing capable of longitudinally translating along a portion of the first housing between a protection position and an injection position; A biasing mechanism for biasing the second housing toward the protected position; and a plug attached to the distal end of the second housing, Wherein, when the second shell is in the protection position, the second shell encapsulates the tip of the delivery needle, when the second shell translates between the protection position and the injection position, the tip penetrates the stopper, and when the second shell is in the injection position, the tip is exposed.

2. A transcutaneous fluid transfer device, characterized in that The transcutaneous fluid transfer device comprises: a first housing including a fixedly attached delivery needle; and a second housing including a bung at a distal end and being longitudinally translatable along a portion of the first housing between a protection position and an injection position, wherein the second housing is biased toward a protection position, and the needle penetrates the stopper when the second housing translates between the protection position and the injection position.

3. The transcutaneous fluid transfer device according to claim 2, wherein It further includes a biasing mechanism that biases the second housing toward the protective position.

4. The transcutaneous fluid transfer device according to claim 3, wherein The biasing mechanism is a spring.

5. The transcutaneous fluid transfer device according to claim 2, wherein When the second housing is in the protective position, the second housing encloses the tip of the delivery needle.

6. The transcutaneous fluid transfer device according to claim 5, wherein When the second housing is in the protective position, the plug encapsulates and seals the tip.

7. The transcutaneous fluid transfer device according to claim 2, wherein When the second housing is in the injection position, the tip of the delivery needle is exposed.

8. The transcutaneous fluid transfer device according to claim 2, wherein It further includes: a filling cap removably attached to the first housing, the filling cap having a cap housing and a cap plug forming a sealed interior, Wherein, the cover plug is in contact with the stopper.

9. The transcutaneous fluid transfer device according to claim 8, wherein The needle penetrates the closure when the second housing translates between the protection position and the injection position.

10. The transcutaneous fluid transfer device according to claim 9, wherein The filling cap receives delivered fluid from the delivery needle and stores the delivered fluid within the sealed interior.

11. The transcutaneous fluid transfer device according to claim 2, wherein It further includes: a medicine vial comprising a stored fluid and a pierceable membrane in contact with the stopper, Wherein, when the second housing translates between the protection position and the injection position, the delivery needle pierces the membrane.

12. The transcutaneous fluid transfer device of claim 2, wherein: The first housing further includes a longitudinal rail having a partition on a distal end; and the second housing further includes a slot configured to receive the longitudinal rail.

13. The transcutaneous fluid transfer device of claim 12, wherein: The first housing includes two longitudinal rails and the second housing includes two slots, each slot being configured to receive one of the longitudinal rails.

14. The transcutaneous fluid transfer device according to claim 2, wherein The plug is one of a spherical shape, an oval shape, and a prismatic shape having a flat contact surface.

15. The transcutaneous fluid transfer device of claim 14, wherein: The plug includes an angled flat contact surface.

16. The transcutaneous fluid transfer device of claim 2, wherein: The stopper further includes an exposed portion and a closed portion, and the exposed portion and the closed portion include different materials.

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