CN114432572B - Medical catheter connector and medical accessory - Google Patents
Medical catheter connector and medical accessory Download PDFInfo
- Publication number
- CN114432572B CN114432572B CN202210248280.2A CN202210248280A CN114432572B CN 114432572 B CN114432572 B CN 114432572B CN 202210248280 A CN202210248280 A CN 202210248280A CN 114432572 B CN114432572 B CN 114432572B
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- catheter
- deformation
- medical
- connecting piece
- channel
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Links
- 238000001125 extrusion Methods 0.000 claims abstract description 30
- 230000000149 penetrating effect Effects 0.000 claims abstract description 5
- 238000003780 insertion Methods 0.000 claims description 45
- 230000037431 insertion Effects 0.000 claims description 45
- 230000002093 peripheral effect Effects 0.000 claims description 14
- 239000000853 adhesive Substances 0.000 abstract description 24
- 230000001070 adhesive effect Effects 0.000 abstract description 24
- 238000000034 method Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 8
- 230000006378 damage Effects 0.000 abstract description 7
- 230000036541 health Effects 0.000 abstract description 7
- 230000005489 elastic deformation Effects 0.000 abstract description 4
- 238000003825 pressing Methods 0.000 description 15
- 230000009471 action Effects 0.000 description 5
- 230000006978 adaptation Effects 0.000 description 4
- 239000008280 blood Substances 0.000 description 4
- 210000004369 blood Anatomy 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 208000002177 Cataract Diseases 0.000 description 1
- 238000003848 UV Light-Curing Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000013020 embryo development Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000003907 kidney function Effects 0.000 description 1
- 210000004185 liver Anatomy 0.000 description 1
- 230000003908 liver function Effects 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/02—Holding devices, e.g. on the body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/10—Tube connectors; Tube couplings
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/10—Tube connectors; Tube couplings
- A61M2039/1038—Union screw connectors, e.g. hollow screw or sleeve having external threads
Abstract
The invention discloses a medical catheter connector and a medical accessory, comprising: the connecting piece is provided with a conduit supporting part and an extrusion part, the conduit supporting part is used for sleeving an inner hole of the conduit, and the conduit supporting part is provided with a first channel; the catheter fixing cap is provided with a catheter channel and a deformation part, and the catheter channel is used for penetrating the outer wall of the catheter; the catheter fixing cap and the connecting piece can be fixedly connected, and after the catheter fixing cap and the connecting piece are fixedly connected, the extrusion part is abutted with the deformation part, and the extrusion part applies extrusion force perpendicular to the axis of the catheter channel to the deformation part, so that the deformation part radially deforms, and the deformation part presses the catheter towards the catheter supporting part. The deformation amount is generated by the deformation part, the catheter is fixed by the elastic deformation force of the deformation part, the catheter is prevented from being fixed by the non-medical adhesive, the harm of the adhesive to the human health in the use process can be avoided, and the use safety of the catheter is improved.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a medical catheter connector. In addition, the invention also relates to a medical accessory comprising the medical catheter connector.
Background
At present, in the technical field of medical instruments, the connection between a pipe body and a connecting piece is realized by adopting an adhesive, namely, when the medical instrument is assembled, the end part of the pipe body adhered with the adhesive is sleeved at the connection part of the connecting piece, and the pipe body and the connecting piece are adhered together by utilizing the adhesive, so that the fixed connection and the sealing of the pipe body and the connecting piece are realized.
However, in the prior art, no medical-grade adhesive is available, and in the actual production process, cyclohexanone or UV curing adhesive is mostly adopted, and most of the adhesive is a volatile solvent, has low toxicity, has certain damage to embryo development, liver and kidney functions and the like, and can also cause cataract and the like. In clinical use, the adhesive is in direct contact with the liquid medicine or blood along with the transfusion or blood transfusion, the adhesive can enter the human body along with the flow of the liquid medicine or blood, and under the condition of heating, the release of harmful substances in the adhesive can be more serious, so that the health of the human body is greatly endangered.
Therefore, how to solve the problem that the non-medical adhesive in the medical apparatus is harmful to human body is a urgent problem for those skilled in the art.
Disclosure of Invention
Therefore, the invention aims to provide a medical catheter connector, which can avoid the use of non-medical adhesive to fix a catheter and avoid the harm of the adhesive to human health in the use process.
Another object of the present invention is to provide a medical accessory comprising the medical catheter connector described above, which avoids the use of non-medical grade adhesives to secure the catheter, and which is safe and reliable.
In order to achieve the above object, the present invention provides the following technical solutions:
A medical catheter connector comprising:
The connecting piece is provided with a conduit supporting part and an extrusion part, the conduit supporting part is used for sleeving an inner hole of the conduit, and the conduit supporting part is provided with a first channel;
The catheter fixing cap is provided with a catheter channel and a deformation part, and the catheter channel is used for penetrating the outer wall of the catheter;
The catheter fixing cap and the connecting piece can be fixedly connected, after the catheter fixing cap and the connecting piece are fixedly connected, the extrusion part is abutted to the deformation part, the extrusion part applies extrusion force perpendicular to the axis of the catheter channel to the deformation part, so that the deformation part deforms radially, and the deformation part presses the catheter towards the catheter supporting part.
Optionally, the deformation amount of the radial deformation generated by the deformation part is adjustable so as to adapt to the catheters with different pipe diameters.
Optionally, the pressing part includes an insertion hole, and the deformation part is configured to be inserted into the insertion hole.
Optionally, at least one of the inner peripheral surface of the insertion hole and the outer peripheral surface of the deformation portion has a taper.
Optionally, the insertion hole is a truncated cone hole, and a large diameter end of the truncated cone hole is an insertion end.
Optionally, the deformation part is a hollow truncated cone with a plurality of slits, and the slits extend from the small diameter end of the truncated cone to the large diameter end of the truncated cone.
Optionally, the connecting piece is provided with a guiding threaded hole, and the catheter fixing cap is provided with external threads for being in threaded connection with the guiding threaded hole.
Optionally, the connection is provided with locking threads for connection with a threaded interface.
Optionally, the connector is provided with a conical head having a second channel communicating with the first channel.
Optionally, an outer peripheral portion of at least one of the connector and the catheter-securing cap is provided with an anti-slip portion.
The utility model provides a medical accessory, includes pipe and above-mentioned arbitrary medical catheter connecting piece, the pipe wears to locate in the pipe passageway of medical catheter connecting piece, just the hole cover of pipe is located the pipe supporting part of medical catheter connecting piece, the pipe fixed cap of medical catheter connecting piece with the connecting piece fixed connection of medical catheter connecting piece, the extrusion portion of connecting piece with the deformation portion butt of pipe fixed cap, deformation portion will the pipe is pressed towards pipe supporting part.
Before the medical catheter connecting piece provided by the invention is used, the connecting piece and the catheter fixing cap are in an unassembled state and are of mutually independent split structures, and at the moment, the deformation part is in a natural state without being stressed and does not generate deformation. When the catheter is assembled, the catheter passes through the catheter channel, the catheter is inserted into the catheter supporting part, the catheter supporting part is sleeved with the inner hole of the catheter, then the catheter fixing cap is fixedly connected with the connecting piece, the extrusion part is abutted with the deformation part, the extrusion part applies extrusion force perpendicular to the axis of the catheter channel to the deformation part through the extrusion part, the deformation part generates radial deformation, the deformation part presses the catheter to the catheter supporting part, and the catheter is fixed on the catheter supporting part by utilizing the extrusion force applied to the catheter by the deformation part, so that the fixed connection of the catheter and the connecting piece is realized.
Therefore, the invention utilizes the deformation amount generated by the deformation part to fix the catheter by utilizing the elastic deformation force of the deformation part, namely, the invention utilizes the mechanical force to fix the catheter, and avoids the use of non-medical adhesive to fix the catheter, thereby avoiding the harm of the adhesive to the health of a human body in the use process and improving the use safety of the catheter.
In addition, in one embodiment, the deformation amount is generated by the deformation part, so that the deformation part presses the catheter to the catheter supporting part, the catheter is fixed, and the deformation amount of the radial deformation generated by the deformation part is adjustable, so that the medical catheter connector can be adapted to catheters with different pipe diameters by generating different deformation amounts by the deformation part, namely, the medical catheter connector can meet the adaptation requirements of catheters with different sizes. Compared with the prior art, one connecting piece can only be matched with a single-pipe-diameter guide pipe, so that various specifications and models of products can be avoided, the model of an injection mold is reduced, and the production input cost is greatly reduced.
The medical accessory provided by the invention comprises the medical catheter connecting piece, has the beneficial effects, and is safe and reliable.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings may be obtained according to the provided drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of a medical catheter connector according to an embodiment of the present invention assembled with a catheter 3;
FIG. 2 is a cross-sectional view taken along A-A of FIG. 1;
Fig. 3 is a schematic structural view of the connector 1 in fig. 1;
FIG. 4 is a B-B cross-sectional view of FIG. 3;
FIG. 5 is a schematic view of the catheter fixing cap 2 of FIG. 1;
FIG. 6 is a front view of FIG. 5;
fig. 7 is a C-C cross-sectional view of fig. 6.
Reference numerals in fig. 1 to 7 are as follows:
The connecting piece 1, the conduit supporting part 11, the first channel 111, the extrusion part 12, the guiding threaded hole 13, the locking thread 14, the conical head 15, the second channel 151, the first anti-skid part 16, the conduit fixing cap 2, the conduit channel 21, the deformation part 22, the kerf 221, the conical platform 222, the external thread 23, the second anti-skid part 24 and the conduit 3.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention provides a medical catheter connecting piece, which can avoid the use of non-medical-grade adhesives to fix catheters and avoid the harm of the adhesives to human health in the use process. Another core of the invention is to provide a medical accessory comprising the medical catheter connector, which avoids the use of non-medical-grade adhesives to fix the catheter, and is safe and reliable.
Referring to fig. 1 to 7, fig. 1 is a schematic structural diagram of a medical catheter connector and a catheter 3 according to an embodiment of the present invention; FIG. 2 is a cross-sectional view taken along A-A of FIG. 1; fig. 3 is a schematic structural view of the connector 1 in fig. 1; FIG. 4 is a B-B cross-sectional view of FIG. 3; FIG. 5 is a schematic view of the catheter fixing cap 2 of FIG. 1; FIG. 6 is a front view of FIG. 5; fig. 7 is a C-C cross-sectional view of fig. 6.
The embodiment of the invention provides a medical catheter connecting piece, which comprises a connecting piece 1 and a catheter fixing cap 2, wherein the connecting piece 1 is provided with a catheter supporting part 11 and an extrusion part 12, the catheter supporting part 11 is used for being sleeved with an inner hole of a catheter 3, and the catheter supporting part 11 is provided with a first channel 111; the catheter fixing cap 2 is provided with a catheter channel 21 and a deformation part 22, the catheter channel 21 is used for penetrating the outer wall of the catheter 3, and the deformation part 22 can generate deformation perpendicular to the axis of the catheter channel 21 under the action of external force; the catheter fixing cap 2 and the connector 1 can be fixedly connected, and after the catheter fixing cap and the connector are fixedly connected, the extrusion part 12 is abutted against the deformation part 22, and the extrusion part 12 applies extrusion force perpendicular to the axis of the catheter channel 21 to the deformation part 22, so that the deformation part 22 deforms radially, and the catheter 3 is pressed towards the catheter supporting part 11 by the deformation part 22.
The medical catheter connector is used for fixing the catheter 3 and the connector 1, and before use, the connector 1 and the catheter fixing cap 2 are in an unassembled state and are in mutually independent split structures, and at this time, the deformation part 22 is in a natural state without being stressed, and no deformation amount is generated.
When the catheter 3 is assembled, the catheter 3 is penetrated through the catheter channel 21, the catheter 3 is inserted into the catheter supporting part 11, the catheter supporting part 11 is sleeved with the inner hole of the catheter 3, then the catheter fixing cap 2 is fixedly connected with the connector 1, the pressing part 12 is abutted against the deformation part 22, the pressing part 12 applies a pressing force perpendicular to the axis of the catheter channel 21 to the deformation part 22, the deformation part 22 deforms radially, the deformation part 22 presses the catheter 3 to the catheter supporting part 11, and the catheter 3 is fixed on the catheter supporting part 11 by the pressing force applied to the catheter 3 by the deformation part 22, so that the fixed connection between the catheter 3 and the connector 1 is realized.
In use, a medical fluid, blood or other liquid may flow through the integral passageway formed by the catheter 3 and the first passageway 111.
It can be seen that the deformation amount is generated by the deformation portion 22, so that the fixing of the catheter 3 is realized by using the elastic deformation force of the deformation portion 22, that is, the fixing of the catheter 3 is realized by using the mechanical force, and the fixing of the catheter 3 by using the non-medical adhesive is avoided, so that the harm of the adhesive to the health of a human body in the using process is avoided, and the using safety of the catheter 3 is improved.
In addition, in some embodiments, the amount of radial deformation produced by the deformation 22 is adjustable to accommodate said conduits 3 of different pipe diameters. Based on the above embodiment, since the deformation amount is generated by the deformation portion 22, the deformation portion 22 presses the catheter 3 to the catheter supporting portion 11 to fix the catheter 3, and further, the deformation amount of the radial deformation generated by the deformation portion 22 in this embodiment is adjustable, so the medical catheter connector can be adapted to catheters 3 with different diameters by making the deformation portion 22 generate different deformation amounts, that is, the medical catheter connector can meet the adaptation requirements of catheters 3 with different sizes. Compared with the prior art, one connecting piece 1 can only be adapted to the guide pipe 3 with a single pipe diameter, so that various specifications and models of products can be avoided, the model of an injection mold is reduced, and the production input cost is greatly reduced.
The specific structures of the pressing portion 12 and the deforming portion 22 are not limited in this embodiment, as long as the pressing portion 12 is in contact with the deforming portion 22 after the catheter fixing cap 2 is fixedly connected to the connector 1, and the pressing portion 12 applies a pressing force perpendicular to the axis of the catheter passage 21 to the deforming portion 22.
In some embodiments, the extrusion 12 includes an insertion hole, and the deformation 22 is configured to be inserted into the insertion hole. That is, in this embodiment, the deformation portion 22 is inserted into the insertion hole, so that the inner wall of the insertion hole abuts against the outer wall of the deformation portion 22, and the pressing force is generated on the deformation portion 22 by the restriction of the inner wall of the insertion hole, so that the plug-in connection is simple and convenient to operate.
In some embodiments, at least one of the inner peripheral surface of the insertion hole and the outer peripheral surface of the deformation portion 22 has a taper. That is, at least one of the inner peripheral surface of the insertion hole and the outer peripheral surface of the deformation portion 22 is a slope surface, so that when the deformation portion 22 is inserted into the insertion hole, the deformation amount of the deformation portion 22 can be changed by changing the insertion length of the deformation portion 22, thereby facilitating the fitting of the catheters 3 of different pipe diameters.
In some embodiments, the insertion hole is a frustoconical hole, the large diameter end of the frustoconical hole being the insertion end. That is, in the present embodiment, the inner peripheral surface of the insertion hole has a taper, and the aperture of the insertion hole gradually decreases from the insertion end to the other end, that is, the deformation portion 22 is formed in such a manner that the deformation portion 22 generates a deformation amount as the aperture of the insertion hole is tapered during the insertion of the deformation portion 22, the axial distance of the deformation portion 22 inserted along the insertion hole is different, and the deformation amount of the deformation portion 22 is different.
When the medical catheter connector provided in this embodiment is matched with catheters 3 with different diameters, the diameter of the catheter 3 is increased, the deformation amount of the deformation part 22 is reduced, and at this time, the axial distance of the deformation part 22 inserted into the insertion hole is reduced; when the pipe diameter of the guide pipe 3 is reduced, the deformation amount of the deformation portion 22 is increased, and at this time, the axial distance of the deformation portion 22 inserted into the insertion hole is increased; that is, by changing the axial distance of the deformation portion 22 inserted into the insertion hole, the catheter 3 of different pipe diameters can be fixed.
Further, to facilitate insertion of the deformation portion 22 into the insertion hole, in some embodiments, the deformation portion 22 is a hollow truncated cone 222 having a plurality of slits 221, the slits 221 extending from a small diameter end of the truncated cone 222 to a large diameter end of the truncated cone 222. That is, in this embodiment, the deformation portion 22 is formed by forming the plurality of slits 221 in the side wall of the hollow truncated cone 222, and it is understood that when the deformation portion 22 is inserted into the insertion hole, the slit 221 of the deformation portion 22 is made smaller as the aperture of the insertion hole is tapered, so as to generate deformation amount of the deformation portion 22, and it is understood that the hollow structure of the truncated cone 222 is communicated with the conduit channel 21, or that the hollow structure of the truncated cone 222 is a part of the conduit channel 21, and when the hollow structure of the truncated cone 222 is assembled, the conduit 3 passes through the hollow structure of the truncated cone 222, and when the slit 221 of the truncated cone 222 is reduced, the truncated cone 222 holds the conduit 3 tightly. In addition, since the truncated cone 222 has a taper such that, when the truncated cone 222 is inserted into the insertion hole, the small diameter end of the truncated cone 222 is inserted into the insertion end of the insertion hole, and the insertion end of the insertion hole is the large diameter end of the insertion hole, it is advantageous to smoothly insert the truncated cone 222 into the insertion hole, and as the truncated cone 222 is gradually inserted into the insertion hole, the outer diameter of the truncated cone 222 is gradually increased, the aperture of the insertion hole is gradually decreased, the outer circumferential surface of the truncated cone 222 is gradually guided with the inner circumferential surface of the insertion hole, and the engagement of the deformation portion 22 with the pressing portion 12 is gradually transited, so that the assembling process of the catheter fixing cap 2 and the connector 1 is stabilized.
In addition, the fixing connection manner of the catheter fixing cap 2 and the connector 1 in the above embodiment is not particularly limited, as long as the connection between the two can be achieved. The catheter fixing cap 2 and the connecting piece 1 can be detachably connected or non-detachably connected.
In some embodiments, the connector 1 is provided with a guiding threaded hole 13 and the catheter fixing cap 2 is provided with external threads 23 for threaded connection with the guiding threaded hole 13. That is, in this embodiment, the guide screw hole 13 is in threaded connection with the external screw thread 23, so that the fixed connection between the catheter fixing cap 2 and the connector 1 is realized, the connection mode is simple, the operation is convenient, and the threaded connection has a certain tightness, so that the tightness of the connection between the catheter fixing cap 2 and the connector 1 can be improved. When the guide screw hole 13 and the external screw thread 23 are screwed together, the pressing portion 12 can be brought into contact with the deformation portion 22, and the pressing portion 12 applies a pressing force perpendicular to the axis of the catheter passage 21 to the deformation portion 22, thereby radially deforming the deformation portion 22.
In addition, it will be understood that, during the screwing process of the pilot screw hole 13 and the external screw thread 23, the deformation portion 22 generates axial movement along the axial direction of the catheter passageway 21 as the pilot screw hole 13 and the external screw thread 23 are gradually screwed together, and therefore, the present embodiment is also advantageous in that the axial movement distance of the deformation portion 22 is changed by changing the screwing length of the pilot screw hole 13 and the external screw thread 23, and thus the deformation amount of the deformation portion 22 is changed. That is, in this embodiment, through the cooperation of the guiding threaded hole 13 and the external thread 23, on one hand, the fixed connection between the catheter fixing cap 2 and the connector 1 is realized, and on the other hand, the deformation portion 22 is gradually moved forward steadily through the guiding action of the thread, so that the cooperation of the extrusion portion 12 and the deformation portion 22 is realized, which is beneficial to gradually changing the deformation amount of the deformation portion 22; further, the axial moving distance of the deformation part 22, that is, the deformation amount of the deformation part 22 can be changed by controlling the screwing length of the guiding threaded hole 13 and the external thread 23, so that the medical catheter connector can be adapted to catheters 3 with different pipe diameters.
Of course, in other embodiments, the catheter fixing cap 2 and the connector 1 may be connected by an interference fit, or be fixed by a clamping connection, etc.
In addition, to facilitate connection of the medical catheter connector to other threaded connectors, in some embodiments, the connector 1 is provided with locking threads 14 for connection to a threaded interface. That is, the locking thread 14 is provided in this embodiment, so that the connector 1 is a two-way joint, that is, the connector 1 can be connected with the catheter fixing cap 2 to fix the catheter 3, and can be connected with other threaded joints through the locking thread 14 to form an assembly with other medical instruments or accessories conveniently.
Further, in some embodiments, the connector 1 is provided with a bit 15, the bit 15 having a second channel 151 in communication with the first channel 111. It will be appreciated that the conical head 15 is a common connection structure in medical devices, i.e. this embodiment is advantageous for enabling the connector 1 to be plugged with other medical devices or accessories through the conical head 15, ensuring that the liquid channels of the other medical devices or accessories are communicated with the catheter 3 through the second channel 151 and the first channel 111.
In addition, in order to apply an external force to the connector 1 and the catheter-fixing cap 2 at the time of assembly, in some embodiments, an outer peripheral portion of at least one of the connector 1 and the catheter-fixing cap 2 is provided with an anti-slip portion. It will be appreciated that during assembly of the connector 1 and the catheter-fixing cap 2, the friction force in contact with the connector 1 and/or the catheter-fixing cap 2 may be increased due to the presence of the anti-slip portion, thus facilitating the application of a greater assembly force to the connector 1 and/or the catheter-fixing cap 2, resulting in a tighter fixation of the connector 1 and the catheter-fixing cap 2 and thus a stronger fixation of the catheter 3 to the catheter-supporting portion 11 of the connector 1.
As shown in fig. 3, in one embodiment, the outer peripheral portion of the connector 1 is provided with a first anti-slip portion 16.
As shown in fig. 6, in one embodiment, the outer peripheral portion of the catheter fixing cap 2 is provided with a second anti-slip portion 24.
In addition to the above-mentioned medical catheter connector, the present invention also provides a medical accessory including the medical catheter connector disclosed in the above-mentioned embodiment, the medical accessory further includes a catheter 3, the catheter 3 is disposed in a catheter channel 21 of the medical catheter connector in a penetrating manner, an inner hole of the catheter 3 is sleeved on a catheter supporting portion 11 of the medical catheter connector, a catheter fixing cap 2 of the medical catheter connector is fixedly connected with a connector 1 of the medical catheter connector, a pressing portion 12 of the connector 1 abuts against a deformation portion 22 of the catheter fixing cap 2, and the deformation portion 22 presses the catheter 3 toward the catheter supporting portion 11.
It can be seen that the medical accessory in this embodiment is a structural member formed by assembling the catheter 3 and the medical catheter connector, and the deformation amount is generated by the medical accessory by using the deformation portion 22, so that the catheter 3 is fixed by using the elastic deformation force of the deformation portion 22, and the catheter 3 is prevented from being fixed by using a non-medical adhesive, so that the harm of the adhesive to the health of a human body in the use process can be avoided, and the use safety of the medical accessory is improved.
It should also be noted that in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.
In this specification, each embodiment is described in a progressive manner, and each embodiment is mainly described by a difference from other embodiments, and identical and similar parts between the embodiments are referred to each other.
The medical catheter connector and the medical accessory provided by the invention are described in detail above. The principles and embodiments of the present invention have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present invention and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the invention can be made without departing from the principles of the invention and these modifications and adaptations are intended to be within the scope of the invention as defined in the following claims.
Claims (10)
1. A medical catheter connector, comprising:
The connecting piece (1) is provided with a catheter supporting part (11) and an extrusion part (12), wherein the catheter supporting part (11) is used for being sleeved with an inner hole of the catheter (3), and the catheter supporting part (11) is provided with a first channel (111);
a catheter fixing cap (2) provided with a catheter channel (21) and a deformation part (22), wherein the catheter channel (21) is used for penetrating the outer wall of the catheter (3);
The catheter fixing cap (2) and the connecting piece (1) can be fixedly connected, after the catheter fixing cap and the connecting piece are fixedly connected, the extrusion part (12) is abutted against the deformation part (22), the extrusion part (12) applies extrusion force perpendicular to the axis of the catheter channel (21) to the deformation part (22), so that the deformation part (22) generates radial deformation, and the catheter (3) is pressed to the catheter supporting part (11) by the deformation part (22);
Before use, the connector (1) and the catheter fixing cap (2) are in an unassembled state;
When the catheter (3) is connected, the catheter (3) is penetrated through the catheter channel (21), the catheter (3) is inserted into the catheter supporting part (11), the catheter supporting part (11) is sleeved with the inner hole of the catheter (3), and the first channel (111) is communicated with the catheter (3); and the catheter fixing cap (2) is fixedly connected with the connecting piece (1), the extrusion part (12) is abutted with the deformation part (22), the extrusion part (12) is used for applying extrusion force perpendicular to the axis of the catheter channel (21) to the deformation part (22), the deformation part (22) is radially deformed, the catheter (3) is pressed to the catheter supporting part (11) by the deformation part (22), and the extrusion force applied to the catheter (3) by the deformation part (22) is utilized to fix the catheter (3) on the catheter supporting part (11), so that the fixed connection of the catheter (3) and the connecting piece (1) is realized.
2. A medical catheter connection according to claim 1, characterized in that the amount of deformation of the radial deformation of the deformation portion (22) is adjustable to adapt the catheters (3) of different tube diameters.
3. The medical catheter connector of claim 2, wherein the squeeze portion (12) includes an insertion hole, the deformation portion (22) being for insertion into the insertion hole.
4. A medical catheter connector according to claim 3, wherein at least one of the inner peripheral surface of the insertion hole and the outer peripheral surface of the deformation portion (22) has a taper.
5. The medical catheter connector of claim 4, wherein the insertion hole is a frustoconical hole, and the large diameter end of the frustoconical hole is an insertion end.
6. The medical catheter connection according to claim 5, wherein the deformation portion (22) is a hollow truncated cone (222) having a plurality of slits (221), the slits (221) extending from a small diameter end of the truncated cone (222) to a large diameter end of the truncated cone (222).
7. A medical catheter connection according to any of claims 1-6, characterized in that the connection (1) is provided with a guiding threaded hole (13) and the catheter fixing cap (2) is provided with an external thread (23) for threaded connection with the guiding threaded hole (13).
8. A medical catheter connection according to any of claims 1-6, characterized in that the connection (1) is provided with locking threads (14) for connection with a threaded interface; and/or the number of the groups of groups,
The connecting piece (1) is provided with a conical head (15), and the conical head (15) is provided with a second channel (151) communicated with the first channel (111).
9. The medical catheter connector according to any one of claims 1-6, wherein an outer peripheral portion of at least one of the connector (1) and the catheter fixing cap (2) is provided with an anti-slip portion.
10. A medical accessory, characterized in that, including pipe (3) and the medical pipe connecting piece of any one of claims 1-9, pipe (3) wear to locate in the pipe passageway (21) of medical pipe connecting piece, just the hole cover of pipe (3) is located pipe supporting part (11) of medical pipe connecting piece, the pipe fixed cap (2) of medical pipe connecting piece with connecting piece (1) fixed connection of medical pipe connecting piece, the extrusion portion (12) of connecting piece (1) with the deformation portion (22) butt of pipe fixed cap (2), deformation portion (22) will pipe (3) are pressed towards pipe supporting part (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210248280.2A CN114432572B (en) | 2022-03-14 | 2022-03-14 | Medical catheter connector and medical accessory |
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| CN202210248280.2A CN114432572B (en) | 2022-03-14 | 2022-03-14 | Medical catheter connector and medical accessory |
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| CN114432572B true CN114432572B (en) | 2024-04-19 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3102142A1 (en) * | 1981-01-23 | 1982-08-12 | B. Braun Melsungen Ag, 3508 Melsungen | Catheter adapter |
| JPH1085340A (en) * | 1996-09-19 | 1998-04-07 | Terumo Corp | Catheter connector |
| CN104399171A (en) * | 2014-11-28 | 2015-03-11 | 中山市普利斯微创介入医械有限公司 | Sleeve type catheter connector |
| CN208974971U (en) * | 2018-09-07 | 2019-06-14 | 临沂市兴华医用器材有限公司 | A kind of connection anesthetic tube connector |
| CN215351557U (en) * | 2020-12-21 | 2021-12-31 | 深圳市美好创亿医疗科技股份有限公司 | Multifunctional joint for connecting conduit |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9227047B2 (en) * | 2013-10-29 | 2016-01-05 | Avent, Inc. | Catheter connector |
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2022
- 2022-03-14 CN CN202210248280.2A patent/CN114432572B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3102142A1 (en) * | 1981-01-23 | 1982-08-12 | B. Braun Melsungen Ag, 3508 Melsungen | Catheter adapter |
| JPH1085340A (en) * | 1996-09-19 | 1998-04-07 | Terumo Corp | Catheter connector |
| CN104399171A (en) * | 2014-11-28 | 2015-03-11 | 中山市普利斯微创介入医械有限公司 | Sleeve type catheter connector |
| CN208974971U (en) * | 2018-09-07 | 2019-06-14 | 临沂市兴华医用器材有限公司 | A kind of connection anesthetic tube connector |
| CN215351557U (en) * | 2020-12-21 | 2021-12-31 | 深圳市美好创亿医疗科技股份有限公司 | Multifunctional joint for connecting conduit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114432572A (en) | 2022-05-06 |
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