CN219251180U - Implantable drug delivery device - Google Patents
Implantable drug delivery device Download PDFInfo
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- CN219251180U CN219251180U CN202222451292.3U CN202222451292U CN219251180U CN 219251180 U CN219251180 U CN 219251180U CN 202222451292 U CN202222451292 U CN 202222451292U CN 219251180 U CN219251180 U CN 219251180U
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- thread groove
- delivery device
- drug delivery
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Abstract
The utility model discloses an implantable drug delivery device, which belongs to the technical field of medical instruments, and particularly relates to an implantable drug delivery device, which comprises an injection seat, wherein the front end of the implantable drug delivery device is integrally formed and connected with a connecting seat, an internal thread groove is formed in the connecting seat, a sealing groove is formed in the inner side of the connecting seat corresponding to the front end of the internal thread groove, a catheter component comprises a catheter socket which is used as the middle end of a connecting catheter, an external thread groove which is in threaded fit with the internal thread groove is formed in the outer side of the catheter socket, a sealing gasket which is in threaded fit with the sealing groove is connected with the outer side of the catheter socket, the rear end of the catheter socket is communicated with the catheter, the catheter socket and the connecting seat are connected through the threaded fit of the external thread groove and the internal thread groove, the sealing property is higher, and due to the arrangement of the sealing groove and the sealing gasket, the sealing gasket is completely embedded in the sealing groove when the internal thread groove and the external thread groove are completely in threaded fit, so that the connection tightness between the catheter component and the injection seat is further increased.
Description
Technical Field
The utility model relates to the technical field of medical appliances, in particular to an implantable drug delivery device.
Background
With the increasingly rapid living demands and technological progress of people, an implantable intravenous transfusion port comprises a port seat and a catheter doctor, transfusion is carried out by a small operation, the port seat and the catheter are buried under the skin of the left or right chest wall of a patient, one end of the catheter is placed into a central vein, the other end of the catheter is connected with the transfusion port, thus, when medicines are directly input into the central vein through the transfusion port, obvious stimulation can be generated by using the superficial vein wall when chemotherapeutics or nutrient solutions such as amino acids, fat emulsion and the like are input by using the implantable intravenous transfusion port, discomfort is caused and the superficial vein is damaged, and the medicines are directly input into the central vein by using the transfusion port, so that damage to the superficial vein is avoided, and vein vessels are protected.
The patent application number CN202122705126.7 provides an implantable drug delivery device, which comprises an injection seat, a puncture septum and a catheter, wherein the puncture septum is arranged at a drug inlet of the injection seat, and the catheter is arranged at a drug outlet of the injection seat; the injection device also comprises a filter component and a one-way valve, wherein the filter component and the one-way valve are arranged between the medicine inlet and the medicine outlet of the injection seat, and the one-way valve is positioned between the filter component and the catheter.
The above-mentioned administration device is described in the specification, but only means that the catheter is mounted on the street and fixed together, and does not adopt any sealing mode to seal, so that the sealing performance of the joint and the joint of the injection seat is poor, the liquid medicine is easy to flow out, and adverse symptoms such as allergy of patients can be caused.
Disclosure of Invention
This section is intended to outline some aspects of embodiments of the utility model and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description summary and in the title of the application, to avoid obscuring the purpose of this section, the description summary and the title of the utility model, which should not be used to limit the scope of the utility model.
Therefore, an object of the present utility model is to provide an implantable drug delivery device, in which a catheter hub and a connection seat are connected by screwing an external thread groove and an internal thread groove, so that the catheter component is conveniently mounted on an injection seat, and the sealing performance is stronger in a threaded connection manner.
In order to solve the technical problems, according to one aspect of the present utility model, the following technical solutions are provided:
an implantable drug delivery device, comprising:
the injection seat is integrally formed at the front end and is connected with a connecting seat, an internal thread groove is formed in the connecting seat, and a sealing groove is formed at the inner side of the connecting seat and corresponds to the front end position of the internal thread groove;
the catheter component is connected to the connecting seat and comprises a catheter socket used as the middle end of the connecting catheter, and an external thread groove which is in threaded fit with the internal thread groove is formed on the outer side of the catheter socket;
the outside of the conduit socket is connected with a sealing gasket which is in sealing fit with the sealing groove, and the rear end of the conduit socket is communicated with a conduit.
As a preferred embodiment of an implantable drug delivery device according to the present utility model, wherein: the shape of the radial section of the injection seat from bottom to top is gradually changed from a circle to a triangle, and any edge of the injection seat is rounded.
As a preferred embodiment of an implantable drug delivery device according to the present utility model, wherein: when the internal thread groove and the external thread groove are completely assembled in a threaded manner, the sealing gasket is completely embedded in the sealing groove.
As a preferred embodiment of an implantable drug delivery device according to the present utility model, wherein: the catheter socket is a cylindrical socket matched with the internal thread groove, and a through hole communicated with the injection seat is formed in the central position of the catheter socket.
As a preferred embodiment of an implantable drug delivery device according to the present utility model, wherein: the central position of the inner side of the catheter socket is connected with a one-way valve.
As a preferred embodiment of an implantable drug delivery device according to the present utility model, wherein: the top and the bottom of seal groove outside homogeneous body shaping are connected with spacing lug, and sealed pad outside has seted up with spacing lug spacing complex spacing recess.
Compared with the prior art: through external screw thread groove and internal screw thread groove screw-in fit, connect pipe socket and connecting seat, when conveniently installing the pipe part on the injection seat, threaded connection's mode, the leakproofness is stronger to, owing to seal groove and sealed setting up of filling up, when internal screw thread groove and external screw thread groove complete screw-in fit, sealed the filling up is inlayed in the seal groove completely, further increases the connection leakproofness between pipe part and the injection seat, can avoid the condition that the liquid medicine flows when the medicine is transfused.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following detailed description of the embodiments of the present utility model will be given with reference to the accompanying drawings, which are to be understood as merely some embodiments of the present utility model, and from which other drawings can be obtained by those skilled in the art without inventive faculty. Wherein:
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic diagram of an explosive structure according to the present utility model;
FIG. 3 is a schematic view of the portion of FIG. 2 according to the present utility model;
FIG. 4 is a schematic view of a portion of the structure of a conduit member according to the present utility model.
In the figure: 100 injection seats, 110 connecting seats, 111 internal thread grooves, 120 sealing grooves, 121 limiting convex blocks, 200 conduit components, 210 conduit sockets, 211 conduits, 220 external thread grooves, 230 sealing gaskets, 231 limiting grooves and 300 one-way valves.
Detailed Description
In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present utility model is not limited to the specific embodiments disclosed below.
Next, the present utility model will be described in detail with reference to the drawings, wherein the sectional view of the device structure is not partially enlarged to general scale for the convenience of description, and the drawings are only examples, which should not limit the scope of the present utility model. In addition, the three-dimensional dimensions of length, width and depth should be included in actual fabrication.
For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, embodiments of the present utility model will be described in further detail below with reference to the accompanying drawings.
The present utility model provides an implantable drug delivery device, referring to fig. 1-3, comprising, an injection seat 100, a catheter component 200 and a one-way valve 300;
with continued reference to fig. 1-3, the injection seat 100 has a radial cross-section that gradually changes from a circular shape to a triangular shape, and any edge of the injection seat 100 is rounded.
The front end of the injection seat 100 is integrally connected with a connecting seat 110, an internal thread groove 111 is formed in the connecting seat 110, and a sealing groove 120 is formed at the inner side of the connecting seat 110 corresponding to the front end position of the internal thread groove 111;
the top and the bottom of the outer side of the sealing groove 120 are uniformly and integrally formed and connected with a limit bump 121, and a limit groove 231 in limit fit with the limit bump 121 is formed in the outer side of the sealing gasket 230;
with continued reference to fig. 1-4, the catheter component 200 is connected to the connection seat 110, and includes a catheter hub 210 as a middle end of the connection catheter, where the catheter hub 210 is a cylindrical hub adapted to the internal thread groove 111, a through hole is formed in a central position of the catheter hub 210 and is configured to be communicated with the injection seat 100, an external thread groove 220 is formed on an outer side of the catheter hub 210 and is configured to be screwed with the internal thread groove 111, and the catheter hub 210 is connected to the connection seat 110 through the external thread groove 220, so that the sealing performance is stronger in a threaded connection manner while the catheter component 200 is conveniently mounted on the injection seat 100, and the sealing gasket 230 is completely embedded in the sealing groove 120 when the internal thread groove 111 and the external thread groove 220 are completely screwed together due to the arrangement of the sealing groove 120 and the sealing gasket 230, so that the connection tightness between the catheter component 200 and the injection seat 100 is further increased, and the situation of flowing out of the liquid medicine during medicine delivery can be avoided;
the outside of the conduit socket 210 is connected with a sealing gasket 230 which is in sealing fit with the sealing groove 120, and the rear end of the conduit socket 210 is communicated with a conduit 211
When the female screw groove 111 and the male screw groove 220 are completely screwed together, the gasket 230 is completely fitted into the seal groove 120
With continued reference to fig. 2, a one-way valve 300 is connected to the central position inside the catheter hub 210, and the catheter member 200 is changed into a one-way input channel by the one-way valve 300 disposed inside the catheter hub 210, so that only the liquid medicine can be input, and the backflow of blood or liquid medicine is prevented.
Working principle: through the screw assembly of the external thread groove 220 and the internal thread groove 111, the catheter hub 210 and the connection seat 110 are connected, so that the catheter component 200 is conveniently arranged on the injection seat 100, the tightness is stronger in a screw connection mode, and due to the arrangement of the sealing groove 120 and the sealing gasket 230, when the internal thread groove 111 and the external thread groove 220 are completely screw assembled, the sealing gasket 230 is completely embedded in the sealing groove 120, the connection tightness between the catheter component 200 and the injection seat 100 is further improved, and the condition that liquid medicine flows out during medicine delivery can be avoided.
Although the utility model has been described hereinabove with reference to embodiments, various modifications thereof may be made and equivalents may be substituted for elements thereof without departing from the scope of the utility model. In particular, the features of the disclosed embodiments may be combined with each other in any manner as long as there is no structural conflict, and the exhaustive description of these combinations is not given in this specification merely for the sake of omitting the descriptions and saving resources. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.
Claims (6)
1. An implantable drug delivery device, comprising:
the injection seat (100) is integrally formed at the front end and is connected with the connecting seat (110), an internal thread groove (111) is formed in the connecting seat (110), and a sealing groove (120) is formed at the inner side of the connecting seat (110) and corresponds to the front end position of the internal thread groove (111);
a catheter component (200) connected to the connection base (110) and comprising a catheter hub (210) as the middle end of the connection catheter, wherein an external thread groove (220) which is in threaded fit with the internal thread groove (111) is formed on the outer side of the catheter hub (210);
the outside of the conduit socket (210) is connected with a sealing gasket (230) which is in sealing fit with the sealing groove (120), and the rear end of the conduit socket (210) is communicated with a conduit (211).
2. An implantable drug delivery device according to claim 1, wherein the injection seat (100) has a radial cross-section from bottom to top in a shape that gradually changes from a circular shape to a triangular shape, and any edge of the injection seat (100) is rounded.
3. An implantable drug delivery device according to claim 1, wherein the gasket (230) is fully embedded in the sealing groove (120) when the female screw groove (111) is fully screwed with the male screw groove (220).
4. An implantable drug delivery device according to claim 1, wherein the catheter hub (210) is a cylindrical hub adapted to the internal thread groove (111), and a through hole communicating with the injection seat (100) is provided in the central position of the catheter hub (210).
5. An implantable drug delivery device according to claim 1, wherein a one-way valve (300) is connected to the central location inside the catheter hub (210).
6. The implantable drug delivery device according to claim 1, wherein a limit bump (121) is integrally formed at the top and the bottom of the outer side of the seal groove (120), and a limit groove (231) in limit fit with the limit bump (121) is formed on the outer side of the seal gasket (230).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222451292.3U CN219251180U (en) | 2022-09-16 | 2022-09-16 | Implantable drug delivery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222451292.3U CN219251180U (en) | 2022-09-16 | 2022-09-16 | Implantable drug delivery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219251180U true CN219251180U (en) | 2023-06-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222451292.3U Active CN219251180U (en) | 2022-09-16 | 2022-09-16 | Implantable drug delivery device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219251180U (en) |
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2022
- 2022-09-16 CN CN202222451292.3U patent/CN219251180U/en active Active
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