CN216366290U - Implantable drug delivery device - Google Patents
Implantable drug delivery device Download PDFInfo
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- CN216366290U CN216366290U CN202121419469.0U CN202121419469U CN216366290U CN 216366290 U CN216366290 U CN 216366290U CN 202121419469 U CN202121419469 U CN 202121419469U CN 216366290 U CN216366290 U CN 216366290U
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- injection seat
- delivery device
- drug delivery
- implantable drug
- human body
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Abstract
The utility model relates to the technical field of medical instruments, in particular to an implantable drug delivery device, which comprises an injection seat and an infusion catheter communicated with the injection seat; the injection seat is integrally in a circular truncated cone-shaped structure; the side wall of the injection seat is inwards sunken, and the surface of the side wall is in a smooth transition corrugated structure. The utility model can overcome the defects that the transfusion port in the prior art is easy to cause wound to the human body when being placed into the human body and is inconvenient for medical personnel to hold.
Description
Technical Field
The utility model relates to the technical field of medical instruments, in particular to an implantable drug delivery device.
Background
The port is known as an implanted intravenous administration set and is a closed intravenous infusion system that is fully implanted into the body. The device is mainly suitable for treating patients needing long-term infusion of high-concentration chemotherapeutic drugs, including patients needing complete parenteral nutrition, patients needing blood transfusion and blood sample collection, and the like, particularly tumor patients, patients with advanced tumor patients and patients with poor vein conditions, difficult maintenance and incapability of ensuring vein access, and the infusion port is a very suitable choice.
The implanted medicine feeder has catheter inserted into the superior vena cava of human body via subcutaneous puncture, and the rest of the catheter and the implanted medicine feeder are embedded in subcutaneous tissue and one circular lug is touched to the surface of the patient. The needle is positioned from the position during treatment, and the atraumatic needle is vertically punctured into a liquid storage tank of an injection seat through the skin, so that the needle can be used for infusing various medicines, supplementing liquid, supporting treatment of nutrition, blood transfusion, blood sample collection and the like. The implanted drug delivery device provides a reliable venous channel for patients needing long-term infusion treatment, can be used for blood sample collection, only needs one-time implantation, and can reduce the pain and difficulty of repeated puncture.
At present, the conventional transfusion port structure is a cylindrical structure or a triangular prism structure with the same outer diameter from top to bottom, and when the transfusion port is implanted into a human body, an opening needs to be formed in the epidermis of the human body, and the transfusion port is plugged into the subcutaneous part of the human body from the opening. In the process of plugging, the column structure with the same diameter at the upper part and the lower part has the following three problems: 1. the column body structure occupies a larger volume, so that an opening on the epidermis of a human body is larger, and the wound caused by the opening is larger; 2. the axial section of the cylinder structure is rectangular, and the outer walls of any side of the cylinder structure of the transfusion port are perpendicular to the epidermis of a human body in the process of being inserted into the human body, so that the resistance when the transfusion port is inserted into the human body is larger, the wound is easy to cause, and the operation difficulty is large; 3. the infusion port is implanted into a human body for subcutaneous puncture infusion, and the cylinder structure is not convenient for medical staff to hold and hold during puncture.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model provides an implantable drug delivery device, which aims to overcome the defects that the prior art is easy to cause wound to the human body when the infusion port is placed into the human body and is inconvenient for medical personnel to hold the infusion port.
An implantable drug delivery device comprises an injection seat and an infusion catheter communicated with the injection seat; the injection seat is integrally in a circular truncated cone-shaped structure; the side wall of the injection seat is inwards sunken, and the surface of the side wall is in a smooth transition corrugated structure.
Optionally, the corresponding recess on the two side edges of any axial section in the injection seat is a complex curve.
Optionally, the corresponding recess on the two side edges of any axial section in the injection seat is a single curve.
Optionally, the depression in the side wall of the injection seat matches the shape of the finger pulp.
Optionally, the shape of the radial section of the injection seat from bottom to top gradually changes from a circle to a triangle.
Optionally, any edge of the injection seat is rounded.
Optionally, a plurality of through holes extending in the axial direction are formed in the side wall of the injection seat at intervals.
Optionally, the through holes are evenly distributed along the circumferential direction of the injection seat at intervals.
Optionally, three through holes are provided; the three through holes are arranged corresponding to the vertex angles of the triangle.
Optionally, the edge of the through hole is rounded.
The technical scheme of the utility model has the following advantages:
1. the utility model provides an implantable drug delivery device, which comprises an injection seat and an infusion catheter communicated with the injection seat; the injection seat is integrally in a circular truncated cone-shaped structure; the side wall of the injection seat is inwards sunken, and the surface of the side wall is in a smooth transition corrugated structure. Through the arrangement, on the first hand, when the transfusion port is implanted into a human body, the injection seat is integrally in the circular truncated cone-shaped structure, and compared with a cylinder structure, the injection seat in the circular truncated cone-shaped structure occupies a smaller volume, so that an opening on the epidermis of the human body is smaller, and the wound of a patient is reduced; in the second aspect, the axial section of the truncated cone-shaped structure is trapezoidal, and compared with a cylinder structure, the resistance between the side wall of the transfusion port and the human body is smaller in the process of being plugged into the human body, so that the transfusion port is convenient to implant into the human body; the third aspect, because the injection seat lateral wall is inwards sunken, and the lateral wall surface is the ripple structure of smooth transition, compares in the cylinder structure, can be convenient for medical personnel to hold between the fingers, hold when the puncture.
2. According to the implantable drug delivery device provided by the utility model, the corresponding depressions on the two side edges of any axial section in the injection seat are complex curves. Through the arrangement, the transfusion port can be conveniently held and held by medical personnel during puncture.
3. According to the implantable drug delivery device provided by the utility model, the corresponding depressions on the two side edges of any axial section in the injection seat are single curves. Through the arrangement, the transfusion port can be conveniently held and held by medical personnel during puncture.
4. According to the implantable drug delivery device, the concave part on the side wall of the injection seat is matched with the shape of the finger pulp. Through the arrangement, medical personnel can clamp the injection seat by using fingers when puncturing, and the medical personnel can conveniently hold the injection seat due to the matching of the concave part on the side wall of the injection seat and the shape of the finger abdomen.
5. According to the implantable drug delivery device provided by the utility model, the shape of the radial section of the injection seat from bottom to top is gradually changed from a circle to a triangle. Through the arrangement, the transfusion port can be conveniently held and held by medical personnel during puncture.
6. According to the implantable drug delivery device provided by the utility model, any edge of the injection seat is rounded. The fillet can prevent the injection seat from scratching the human body when being implanted into the human body.
7. The utility model provides an implantable drug delivery device, wherein a plurality of through holes extending along the axial direction are formed in the side wall of an injection seat at intervals. After the injection seat is implanted into a human body, the medical staff penetrates the suture line through the human body and the through hole, so that the injection seat is sutured on the human body, and the injection seat cannot move greatly in the human body.
8. According to the implantable drug delivery device provided by the utility model, the through holes are uniformly distributed at intervals along the circumferential direction of the injection seat. The through holes distributed at even intervals enable medical personnel to sew the injection seat in the human body more stably.
9. The utility model provides an implantable drug delivery device, three through holes are arranged; the three through holes are arranged corresponding to the vertex angles of the triangle. Through the arrangement, the transfusion port can be conveniently held and held by medical personnel during puncture.
10. According to the implantable drug delivery device provided by the utility model, the edge of the through hole is rounded. The fillet can prevent the injection seat from scratching the human body when being implanted into the human body.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic view of an implantable drug delivery device according to an embodiment of the present application;
fig. 2 is a top view of an implantable drug delivery device according to an embodiment of the present application.
Description of reference numerals: 1. an injection seat; 2. an infusion catheter; 3. a through hole.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example 1
Referring to fig. 1-2, the present application provides an implantable drug delivery device, including an injection seat 1 and an infusion tube 2 communicating with the injection seat 1; the injection seat 1 is integrally in a circular truncated cone-shaped structure; the side wall of the injection seat 1 is inwards sunken, and the surface of the side wall is in a smooth transition corrugated structure.
Through the arrangement, on the first hand, when the transfusion port is implanted into a human body, the injection seat 1 is integrally in the circular truncated cone-shaped structure, and compared with a cylinder structure, the injection seat 1 in the circular truncated cone-shaped structure occupies a smaller volume, so that an opening on the skin of the human body is smaller, and the wound of a patient is reduced; in the second aspect, the axial section of the truncated cone-shaped structure is trapezoidal, and compared with a cylinder structure, the resistance between the side wall of the transfusion port and the human body is smaller in the process of being plugged into the human body, so that the transfusion port is convenient to implant into the human body; in the third aspect, the side wall of the injection seat 1 is inwards sunken, and the surface of the side wall is in a smooth transition corrugated structure, so that medical personnel can conveniently hold the injection seat and hold the injection seat in a puncturing process compared with a cylinder structure.
The infusion catheter 2 and the injection seat 1 are integrally formed, the infusion catheter 2 can be connected with a connecting pipe through a locking head, and the connecting pipe is implanted into a human body and used for conveying liquid medicine to the human body or extracting a blood sample from the human body.
The corresponding concave on the two side edges of any axial section in the injection seat 1 is a complex curve. Through the arrangement, the transfusion port can be conveniently held and held by medical personnel during puncture.
The depressions in the side walls of the injection site 1 match the shape of the finger pulp. Through the arrangement, medical personnel can clamp the injection seat 1 by fingers when puncturing, and the medical personnel can conveniently hold the injection seat 1 due to the matching of the concave part on the side wall of the injection seat 1 and the shape of the finger abdomen.
The shape of the radial section of the injection seat 1 from bottom to top is gradually changed from a circle to a triangle. Through the arrangement, the transfusion port can be conveniently held and held by medical personnel during puncture.
Any edge of the injection seat 1 is rounded. The rounded angle can prevent the injection seat 1 from scratching the human body when being implanted into the human body.
The side wall of the injection seat 1 is provided with a plurality of through holes 3 which extend along the axial direction at intervals. After the injection seat 1 is implanted into a human body, the medical staff penetrates the suture line through the human body and the through hole 3, so that the injection seat 1 is sutured on the human body, and the injection seat 1 cannot move greatly in the human body.
The through holes 3 are evenly distributed along the circumferential direction of the injection seat 1 at intervals. The through holes 3 distributed at even intervals enable medical staff to sew the injection seat 1 in the human body more firmly.
Three through holes 3 are provided; the three through holes 3 are arranged corresponding to the vertex angles of the triangle. Through the arrangement, the transfusion port can be conveniently held and held by medical personnel during puncture.
The edges of the through-holes 3 are rounded. The rounded angle can prevent the injection seat 1 from scratching the human body when being implanted into the human body.
Example 2
Different from the embodiment 1, the corresponding concave parts on the two sides of any axial section of the injection seat 1 are single curves. Through the arrangement, the transfusion port can be conveniently held and held by medical personnel during puncture.
Example 3
Different from the embodiment 1, the corresponding concave parts on the two side edges of any axial section in the injection seat 1 are minor arcs. Through the arrangement, the transfusion port can be conveniently held and held by medical personnel during puncture.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the utility model.
Claims (10)
1. An implantable drug delivery device comprises an injection seat (1) and an infusion catheter (2) communicated with the injection seat (1); it is characterized in that the preparation method is characterized in that,
the injection seat (1) is integrally in a round table-shaped structure;
the side wall of the injection seat (1) is inwards sunken, and the surface of the side wall is in a smooth transition corrugated structure.
2. An implantable drug delivery device according to claim 1, characterized in that the corresponding depressions on both sides of any axial cross-section of the injection site (1) are compound curves.
3. An implantable drug delivery device according to claim 1, characterized in that the corresponding depression on both sides of any axial cross-section of the injection site (1) is a single curve.
4. An implantable drug delivery device according to any of claims 1-3, characterized in that the depression in the side wall of the injection site (1) matches the shape of the finger pulp.
5. An implantable drug delivery device according to any one of claims 1-3, characterized in that the shape of the radial cross-section of the injection seat (1) from bottom to top is gradually changed from a circle to a triangle.
6. An implantable drug delivery device according to claim 5, characterized in that any edge of the injection site (1) is rounded.
7. An implantable drug delivery device according to claim 5, characterized in that the injection seat (1) has a plurality of axially extending through-holes (3) spaced apart from each other in the side wall.
8. An implantable drug delivery device according to claim 7, wherein the through-going holes (3) are evenly spaced along the circumference of the injection seat (1).
9. An implantable drug delivery device according to claim 8, wherein three through-going holes (3) are provided; the three through holes (3) are arranged corresponding to the vertex angles of the triangle.
10. An implantable drug delivery device according to claim 9, wherein the edges of the through-going hole (3) are rounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121419469.0U CN216366290U (en) | 2021-06-25 | 2021-06-25 | Implantable drug delivery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121419469.0U CN216366290U (en) | 2021-06-25 | 2021-06-25 | Implantable drug delivery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216366290U true CN216366290U (en) | 2022-04-26 |
Family
ID=81215268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121419469.0U Active CN216366290U (en) | 2021-06-25 | 2021-06-25 | Implantable drug delivery device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216366290U (en) |
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2021
- 2021-06-25 CN CN202121419469.0U patent/CN216366290U/en active Active
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