Puncture locking port and infusion assembly without adhesives and chemical solvents

Abstract

A puncture locking connector used for the infusion therapy of a patient, characterized in that the puncture locking connector comprises the following components, which are integrally molded together in sequence from top to bottom: a conical puncture head with an oblique puncture hole; a limiting plate having a puncture end and a gripping end arranged opposite one another, wherein the conical puncture head is arranged perpendicularly to the puncture end; wherein the limiting plate serves to limit the displacement of the conical puncture head; a gripping portion having a square main body having one end perpendicular to the limiting plate; a connecting pipe, one end of which is fixedly connected to the other end of the square main body and the other end of which is provided with a liquid outlet hole communicating with the oblique puncture hole.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to a puncture locking port and an infusion assembly without adhesives and chemical solvents. STATE OF THE ART

[0002] Currently, in an infusion line assembly, the main body of a puncture set is typically equipped with a puncture head and a gripping section.

[0003] However, the gripping section of most existing puncture instruments has a cylindrical structure, which can lead to instability when grasped by medical personnel and easily causes slippage. This lack of grip stability can cause the puncture head to accidentally puncture the skin, posing a safety risk for medical personnel when using the puncture instruments.

[0004] Consequently, there are deficiencies and inadequacies in the state of the art that require further improvement and development. CONTENT OF THIS APPLICATION

[0005] In view of the above-described disadvantages of the prior art, the object of the present application is to provide a puncture locking connector and an infusion assembly without adhesives and chemical solvents, thus solving the problem of insufficient grip stability and the resulting safety risk for medical personnel in conventional puncture sets.

[0006] According to the present application, the object is achieved by a puncture locking connector used for the infusion therapy of a patient, wherein the puncture locking connector comprises the following components, which are integrally formed with one another in sequence from top to bottom: a conical puncture head with an oblique puncture hole; a limiting plate having a puncture end and a gripping end arranged opposite one another, wherein the conical puncture head is arranged perpendicularly to the puncture end; wherein the limiting plate serves to limit the displacement of the conical puncture head; a gripping portion having a square main body having one end perpendicular to the limiting plate; a connecting pipe, one end of which is fixedly connected to the other end of the square main body and the other end of which is provided with a liquid outlet hole communicating with the oblique puncture hole.

[0007] Optionally, the square main body comprises a first end face and a second end face arranged opposite one another, corner regions of the first end face being provided with a first and a second gripping tab, and corner regions of the second end face being provided with a third and a fourth gripping tab; wherein the first gripping tab, the second gripping tab, the third gripping tab and the fourth gripping tab are each arranged perpendicular to the boundary plate.

[0008] Optionally, it is provided that a first U-shaped groove is formed between the first gripping tab and the second gripping tab, a second U-shaped groove is formed between the third gripping tab and the fourth gripping tab, a third U-shaped groove is formed between the first gripping tab and the third gripping tab, and a fourth U-shaped groove is formed between the second gripping tab and the fourth gripping tab.

[0009] Optionally, the third U-shaped groove is provided with a gas inlet pipe that communicates with the liquid outlet hole and the oblique puncture hole.

[0010] Optionally, several reinforcing elements are provided in both the third and fourth U-shaped grooves.

[0011] Optionally, it is provided that the plurality of reinforcing elements can be designed as cylindrical elements, ribbed plates or separating plates.

[0012] According to the present application, the object is further achieved by an infusion assembly without adhesives and chemical solvents, which comprises: a puncture locking connection as described above, wherein the connecting tube comprises a connecting tube body, a locking plate and a counter-locking element, wherein the locking plate is arranged circumferentially on a side of the connecting tube body facing the gripping section and the counter-locking element is arranged circumferentially on an end of the connecting tube body facing away from the gripping section; an infusion tube detachably connected to the puncture locking port; a locking element provided with a through-hole arranged at an end of the locking element facing away from the connecting tube and serving to lead out the infusion tube; wherein the locking element serves to fix the infusion tube to the puncture locking connection.

[0013] Optionally, it is provided that the locking element is designed as a rotary lock connection, wherein a plurality of rotary lock projections are provided on an inner wall of the rotary lock connection facing the connecting tube; wherein a plurality of locking projections are provided on the locking plate, which are uniquely assigned to the plurality of rotary closure projections, wherein the plurality of locking projections are each provided with a rotary closure opening whose dimensions are matched to the rotary closure projections; wherein a release protection projection is provided at the entrance of the individual rotary closure opening, which serves to prevent release of the respective rotary closure projection engaged in the rotary closure opening; wherein the infusion tube is led out through the through-hole and inserted into the connecting tube body, wherein the rotary lock projections abut against the locking plate and by rotating the rotary lock connector the plurality of rotary lock projections are pivoted into the respective rotary lock openings.

[0014] Optionally, the locking element is designed as a counter-locking connection comprising a plurality of pressure closure elements that are fixedly attached to an end of the counter-locking connection facing away from the through-hole; wherein the individual pressure closure element comprises a deformation section and a snap-in section.

[0015] Optionally, the snap-in section is provided with a contact segment, a side support segment and a locking segment by one-piece molding; wherein the infusion tube is led out through the through-hole and inserted into the connecting tube body, so that the counter-locking connection is displaced in the direction of the puncture locking connection, wherein the abutment segment abuts against the locking plate, wherein the deformation section spreads outwards and thereby bends, wherein the side support segment abuts against the side wall of the locking plate and thus the locking segment is locked in the locking plate.

[0016] Compared with the prior art, the present application provides a puncture locking port and an infusion assembly without adhesives and chemical solvents. In the puncture locking port, the gripping portion has a square main body, one end of which is arranged perpendicular to the restriction plate, and one end of the connecting tube is firmly connected to the other end of the square main body. Compared with existing cylindrical gripping designs, this increases gripping friction and effectively prevents slipping when medical personnel have sweaty hands or awkward hand postures, thus ensuring more stable and safer handling. The other end of the connecting tube is provided with a fluid outlet hole that communicates with the oblique puncture hole, making fluid flow smoother.This increases infusion efficiency, reduces gas accumulation and blockages, and thus ensures smooth infusion. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Showing Fig. 1 is a schematic three-dimensional structural view of a puncture locking connector according to the present application; Fig. 2 is another schematic three-dimensional structural view of the puncture locking connector according to the present application; Fig. 3 is another schematic three-dimensional structural view of the puncture locking connector according to the present application; Fig. 4 is another schematic three-dimensional structural view of the puncture locking connector according to the present application; Fig. 5 is another schematic three-dimensional structural view of the puncture locking connector according to the present application; Fig. 6 is a schematic three-dimensional structural exploded view of an adhesive-free infusion assembly without chemical solvents according to the present application; Fig. 7 is another schematic three-dimensional structural exploded view of the adhesive-free infusion assembly without chemical solvents according to the present application; Fig. 8 is another schematic three-dimensional structural exploded view of the adhesive-free infusion assembly without chemical solvents according to the present application; Fig. 9 is another schematic three-dimensional structural exploded view of the adhesive-free infusion assembly without chemical solvents according to the present application. Description of reference symbols:

[0018] 10. Puncture locking port; 11. Conical puncture head; 111. Oblique puncture hole; 12. Gripping section; 121. Square main body; 1211. First end face; 1212. Second end face; 1213. First gripping tab; 1214. Second gripping tab; 1215. Third gripping tab; 1216. Fourth gripping tab; 1217. First U-shaped groove; 1218. Second U-shaped groove; 1219. Third U-shaped groove; 1220. Fourth U-shaped groove; 1221. Gas inlet tube; 1222. Reinforcing member; 13. Connecting tube; 131. Liquid outlet hole; 132. Connecting tube body; 133. Detent plate; 1331. Locking projection; 1332. Twist lock opening; 1333. Anti-release projection; 134. Counter-lock element; 14. Restrictor plate; 141. Puncture end; 142. Gripping end; 20. Infusion assembly without adhesives and chemical solvents; 21. Infusion tube; 22. Locking element; 221. Twist lock connector; 2211. Twist lock projection; 222. Feed-through hole; 23. Counter-lock connector; 2321. Pressure lock element; 2322.Deformation section; 2323. Snap section; 2324. Contact segment; 2326. Side support segment; 2327. Locking segment. DETAILED DESCRIPTION

[0019] The following describes in more detail exemplary embodiments of the present application, examples of which are illustrated in the accompanying drawings. Identical or similar reference numerals always represent identical or similar elements or elements with identical or similar functions. The following description of the exemplary embodiments with reference to the drawings is exemplary and serves merely to explain the application. It should not be understood as limiting the present application.

[0020] It is understood that in the description of the present application, the terms "center", "longitudinal direction", "transverse direction", "top", "bottom", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., are used in each case with reference to the illustrated orientation or positional relationship in the respective illustration, in order merely to describe the present application and, where appropriate, to simplify the description. In other words, these terms neither implicitly nor explicitly indicate the positioning, design, and operation of the device or element in question in a predetermined position, so that this does not constitute a limitation of the present application. Furthermore, it should be noted that the terms "first" and "second" should not be understood as an implicit or explicit reference to the relative importance or number of the feature concerned.Instead, they serve merely as descriptive features. Thus, a feature specified as "first" or "second" may explicitly or implicitly mean that the number of that feature is one or more. Furthermore, the term "multiple" in the description of the present application refers to a number of two or more, unless otherwise stated.

[0021] In the description of this application, the terms "attach," "connected," "connect," or the like, unless expressly stated otherwise, should be understood in a broad sense. For example, this can refer to a fixed, detachable, or one-piece connection, as well as a mechanical or electrical connection. Direct connections, indirect connections, or connections made via an intermediate piece, as well as internal connections between two elements are also conceivable. As a person of ordinary skill in the art, one can use the facts of the case to determine the intended meaning of these terms in accordance with this application.

[0022] With reference to Fig. 1, a first embodiment of the present application provides a puncture locking port 10 used for patient infusion therapy. The conical design of the puncture head allows it to be inserted into a liquid medication bag or medication bottle, thus forming a stable infusion channel. An inclined puncture hole 111 provided in the puncture head ensures rapid inflow of liquid into an infusion line and reduces the likelihood of blockages. Furthermore, a square main body 121 of the gripping portion 12 provides a better gripping experience. Medical personnel can control the angle and depth of the puncture locking port via the gripping portion 12, ensuring stability during puncture and reducing operational risks due to unstable gripping.One end of the connecting tube 13 is connected to the puncture head, and the other end is connected to an infusion tube 21 via a fluid outlet hole 131. After inserting the conical puncture head 11 into a bag for liquid medication, the fluid can flow smoothly into the infusion tube 21, ensuring a continuous and efficient infusion process. Furthermore, the provision of a locking element 22 ensures a secure connection of the infusion tube 21 during operation and effectively prevents fluid leakage, thereby significantly increasing overall application safety and reliability.

[0023] It will be Fig. 2 to 5. In some embodiments, the puncture locking connector 10 includes a conical puncture head 11, a restrictor plate 14, a gripping portion 12, and a connecting tube 13, which are integrally molded together in sequence from top to bottom. The conical puncture head 11 has an inclined puncture hole 111, thereby making the inflow path of the liquid smoother and reducing the likelihood of clogging or backflow. The restrictor plate 14 has a puncture end 141 and a gripping end 142 arranged opposite each other. The conical puncture head 11 is arranged vertically at the puncture end 141. The restrictor plate 14 serves to restrict the displacement of the conical puncture head 11, thereby effectively restricting excessive displacement of the conical puncture head 11.This prevents both over-penetration and detachment, thus increasing safety and precision of operation. The gripping section 12 has a square main body 121, one end of which is arranged perpendicular to the restriction plate 14. One end of the connecting tube 13 is firmly connected to the other end of the square main body 121. Thus, compared to existing cylindrical gripping designs, the friction during gripping is increased and slipping is effectively prevented when the medical staff has sweaty hands or an awkward hand position, thus ensuring more stable and safer handling. The other end of the connecting tube 13 is provided with a fluid outlet hole 131 that communicates with the oblique puncture hole 111, making the fluid flow smoother.This increases infusion efficiency, reduces gas accumulation and blockages, and thus ensures smooth infusion.

[0024] It will be Fig. 2 to 5. In some embodiments, the square main body 121 has a first end surface 1211 and a second end surface 1212 arranged opposite one another. Corner regions of the first end surface 1211 are provided with a first gripping tab 1213 and a second gripping tab 1214, and corner regions of the second end surface 1212 are provided with a third gripping tab 1215 and a fourth gripping tab 1216. This construction provides additional support points for the fingers, thereby achieving a more comfortable and stable grip and reducing fatigue during long-term operation. The first gripping tab 1213, the second gripping tab 1214, the third gripping tab 1215, and the fourth gripping tab 1216 are each arranged perpendicular to the limiting plate 14, thereby distributing the gripping force more evenly.This prevents the risk of loss of control or local slippage due to force applied over a single point and allows medical personnel to control the use of the puncture head more precisely.

[0025] It will be Fig. 2 to 5. In some embodiments, a first U-shaped groove 1217 is formed between the first gripping tab 1213 and the second gripping tab 1214, a second U-shaped groove 1218 is formed between the third gripping tab 1215 and the fourth gripping tab 1216, a third U-shaped groove 1219 is formed between the first gripping tab 1213 and the third gripping tab 1215, and a fourth U-shaped groove 1220 is formed between the second gripping tab 1214 and the fourth gripping tab 1216. This optimizes the design of the gripping portion 12, results in a lighter construction of the gripping structure, increases the contact area for the fingers, and increases friction, thereby significantly reducing the risk of slipping during operation.

[0026] It will be Fig. 1 and Fig. 2. In some embodiments, the third U-shaped groove 1219 is provided with a gas inlet tube 1221 that communicates with the liquid outlet hole 131 and the oblique puncture hole 111. This allows for effective removal of gas from the tubing, preventing the formation of air bubbles during infusion. This ensures a continuous and stable liquid flow, preventing disrupted or delayed infusion due to gas.

[0027] In some embodiments, a watertight, gas-permeable membrane is provided in the gas inlet tube 1221 so that air from the gas inlet tube 1221 can circulate through the gas inlet hole in the gas inlet tube 1221 and the watertight, gas-permeable membrane, thus preventing fluid from flowing out of the gas inlet tube 1221. This maintains pressure equilibrium during fluid withdrawal or infusion, ensuring a continuous and stable flow of fluid and preventing disrupted or delayed infusion due to gas.

[0028] It will be Fig. 2 to 5. In some embodiments, a plurality of reinforcing elements 1222 are provided in each of the third C-shaped groove 1219 and the fourth C-shaped groove 1220, thus providing a reinforced support structure that ensures improved stability when the respective U-shaped groove is subjected to compressive loading. This prevents breakage or deformation of the groove openings due to excessive force, ensuring the reliability of the puncturing process.

[0029] It will be Fig. 4. In some embodiments, the plurality of reinforcing elements 1222 can be formed as cylindrical elements, ribbed plates, or partition plates. This allows the structure of the reinforcing elements 1222 to be adapted as needed, further optimizing the structural strength and pressure resistance of the puncture locking connector 10. This ensures the reliability of the puncture process with the puncture locking connector 10.

[0030] It will be Fig. 4 and Fig. 6. A second exemplary embodiment of the present application provides an adhesive-free infusion assembly 20 without chemical solvents. The adhesive-free infusion assembly 20 without chemical solvents comprises a puncture locking port 10 described above, an infusion tube 21, and a locking element 22. The connecting tube 13 comprises a connecting tube body 132, a locking plate 133, and a counter-locking element 134. The locking plate 133 is arranged circumferentially on a side of the connecting tube body 132 facing the gripping section 12, and the counter-locking element 134 is arranged circumferentially on an end of the connecting tube body 132 facing away from the gripping section 12. The infusion tube 21 is detachably connected to the puncture locking port 10.The locking element 22 is provided with a through-hole 222 located at an end of the locking element 22 facing away from the connecting tube 13 and serving to lead out the infusion tube 21. The locking element 22 serves to fix the infusion tube 21 to the puncture locking connector 10. This significantly improves the gas-tightness and connection quality between the puncture locking connector 10 and the infusion tube 21. This avoids loosening problems that could occur with conventional adhesive connections, eliminates the curing process with adhesives, and eliminates the safety risks associated with volatile organic compounds, thus ensuring patient safety. Furthermore, air drying and curing time are eliminated, reducing the production time and cost of the adhesive-free infusion assembly without chemical solvents and increasing its production capacity.

[0031] It will be Fig. 7. In some embodiments, the locking element 22 is designed as a twist-lock connector 221. A plurality of twist-lock projections 2211 are provided on an inner wall of the twist-lock connector 221 facing the connecting tube 13. A plurality of locking projections 1331 are provided on the latching plate 133, which are uniquely assigned to the plurality of twist-lock projections 2211. The plurality of locking projections 1331 are each provided with a twist-lock opening 1332, the dimensions of which are matched to the twist-lock projections 2211. Thus, a robust connection is achieved by the twist-lock projections 2211 and the twist-lock openings 1332 on the latching plate 133. This prevents fluid leaks or detachment due to a loose connection of the infusion tube 21 during the infusion process, thus ensuring continuous and stable infusion.At the entrance of each twist lock opening 1332, an anti-loosening projection 1333 is provided, which serves to prevent the respective twist lock projection 2211 engaged in the twist lock opening 1332 from becoming loose. The infusion tube 21 is guided out through the through-hole 222 and inserted into the connecting tube body 132. The twist lock projections 2211 rest against the locking plate 133, and by rotating the twist lock connector 221, the plurality of twist lock projections 2211 are pivoted into the respective twist lock openings 1332. This prevents the twist lock projections 2211 from becoming loose during extended infusion processes due to twisting or pulling of the infusion tube 21, thus increasing overall application safety.

[0032] It will be Fig. 8. In some embodiments, the locking element 22 is designed as a mating snap-in connector 23 comprising a plurality of pressure-locking elements 2321 that are fixedly attached to an end of the mating snap-in connector 23 remote from the through-hole 222. The single pressure-locking element 2321 includes a deformation portion 2322 and a snap-in portion 2323. This enables rapid assembly of the mating snap-in connector 23 during assembly, while significantly improving connection strength and reliability.

[0033] It will be Fig. 8. In some embodiments, the snap portion 2323 is provided with a buttress segment 2324, a side support segment 2326, and a locking segment 2327 by integral molding. The infusion tube 21 is guided out through the through-hole 222 and inserted into the connecting tube body 132, so that the counter-locking connector 23 is displaced toward the puncture locking connector 10. The buttress segment 2324 abuts the locking plate 133. The deformation portion 2322 spreads outward and thereby bends. The side support segment 2326 abuts the side wall of the locking plate 133, and thus the locking segment 2327 is locked in the locking plate 133.The interaction of the abutment segment 2324, the side support segment 2326 and the locking segment 2327 ensures a robust and secure connection between the infusion tube 21 and the puncture locking port 10, which further avoids the risk of fluid leakage or detachment of the device during infusion.

[0034] It will be Fig. 9. In some embodiments, the infusion tube 21 can be inserted directly into the mating locking element 134 and then pushed into the connecting tube body 132, creating a press fit between the infusion tube 21 and the main body of the connecting tube 13. This ensures a robust and secure connection between the infusion tube 21 and the puncture locking port 10, further avoiding the risk of fluid leakage or detachment of the device during infusion.

[0035] As stated above, the present application provides a puncture locking port and infusion assembly without adhesives and chemical solvents.The puncture locking connector includes the following components integrally molded together in order from top to bottom: a conical puncture head having an oblique puncture hole; a restricting plate having a puncture end and a gripping end arranged opposite one another, the conical puncture head being arranged vertically at the puncture end; the restricting plate serving to restrict the displacement of the conical puncture head; a gripping portion having a square main body, one end of which is arranged vertically to the restricting plate; a connecting tube, one end of which is fixedly connected to the other end of the square main body and the other end of which is provided with a liquid outlet hole communicating with the oblique puncture hole.Compared to existing cylindrical gripping designs, this design increases gripping friction and effectively prevents slipping when medical personnel have sweaty hands or awkward hand positions, ensuring more stable and safe handling. The other end of the connecting tube is equipped with a fluid outlet hole connected to the angled puncture hole, making fluid flow smoother. This increases infusion efficiency, reduces gas accumulation and clogging of the infusion tube, and thus ensures smooth infusion.

[0036] It is to be understood that the application of the present application is by no means limited to the above examples, and rather, improvements or modifications are possible for those of ordinary skill in the art on the basis of the above description, and all such improvements and modifications should be within the scope of the appended claims of the present application.

Claims

[1] Puncture locking port used for infusion therapy of a patient, characterized by that the puncture locking connector comprises the following components, which are integrally formed from top to bottom: a conical puncture head with an oblique puncture hole; a limiting plate having a puncture end and a gripping end arranged opposite one another, wherein the conical puncture head is arranged perpendicularly to the puncture end; wherein the limiting plate serves to limit the displacement of the conical puncture head; a gripping portion having a square main body having one end perpendicular to the limiting plate; a connecting pipe, one end of which is fixedly connected to the other end of the square main body and the other end of which is provided with a liquid outlet hole communicating with the oblique puncture hole. [2] Puncture locking connection according to claim 1, characterized by in that the square main body has a first end face and a second end face arranged opposite one another, wherein corner regions of the first end face are provided with a first and a second gripping tab, and corner regions of the second end face are provided with a third and a fourth gripping tab; wherein the first gripping tab, the second gripping tab, the third gripping tab, and the fourth gripping tab are each arranged perpendicular to the boundary plate. [3] Puncture locking connection according to claim 2, characterized bythat a first U-shaped groove is formed between the first gripping tab and the second gripping tab, a second U-shaped groove is formed between the third gripping tab and the fourth gripping tab, a third U-shaped groove is formed between the first gripping tab and the third gripping tab, and a fourth U-shaped groove is formed between the second gripping tab and the fourth gripping tab. [4] Puncture locking connection according to claim 3, characterized by that the third U-shaped groove is provided with a gas inlet pipe communicating with the liquid outlet hole and the oblique puncture hole. [5] Puncture locking connection according to claim 3, characterized by that several reinforcing elements are provided in both the third and fourth U-shaped grooves. [6] Puncture locking connection according to claim 5, characterized bythat the plurality of reinforcing elements can be designed as cylindrical elements, ribbed plates or separating plates. [7] Infusion assembly without adhesives and chemical solvents, characterized by that the infusion assembly without adhesives and chemical solvents includes: a puncture locking connection according to one of claims 1 to 6, wherein the connecting tube comprises a connecting tube body, a locking plate and a counter-locking element, wherein the locking plate is arranged circumferentially on a side of the connecting tube body facing the gripping section and the counter-locking element is arranged circumferentially on an end of the connecting tube body facing away from the gripping section; an infusion tube detachably connected to the puncture locking port; a locking element provided with a through-hole arranged at an end of the locking element facing away from the connecting tube and serving to lead out the infusion tube; wherein the locking element serves to fix the infusion tube to the puncture locking connection. [8] Infusion assembly without adhesives and chemical solvents according to claim 7, characterized by that the locking element is designed as a rotary lock connection, wherein a plurality of rotary lock projections are provided on an inner wall of the rotary lock connection facing the connecting tube; wherein a plurality of locking projections are provided on the locking plate, which are uniquely assigned to the plurality of rotary closure projections, wherein the plurality of locking projections are each provided with a rotary closure opening whose dimensions are matched to the rotary closure projections; wherein a release protection projection is provided at the entrance of the individual rotary closure opening, which serves to prevent release of the respective rotary closure projection engaged in the rotary closure opening; wherein the infusion tube is led out through the through-hole and inserted into the connecting tube body, wherein the rotary lock projections abut against the locking plate and by rotating the rotary lock connector the plurality of rotary lock projections are pivoted into the respective rotary lock openings. [9] Infusion assembly without adhesives and chemical solvents according to claim 7, characterized bythat the locking element is designed as a counter-locking connection comprising a plurality of pressure closure elements that are fixedly attached to an end of the counter-locking connection facing away from the through-hole; wherein the individual pressure closure element comprises a deformation section and a snap-in section. [10] Infusion assembly without adhesives and chemical solvents according to claim 9, characterized byin that the snap section is provided with an abutment segment, a side support segment and a locking segment by one-piece molding; wherein the infusion tube is led out through the through-hole and inserted into the connecting tube body, so that the counter-locking connection is displaced in the direction of the puncture locking connection, wherein the abutment segment abuts against the locking plate, wherein the deformation section spreads outwards and thereby bends, wherein the side support segment abuts against the side wall of the locking plate and thus the locking segment is locked in the locking plate.

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