CN217138855U

CN217138855U - Hepatic artery duct port system

Info

Publication number: CN217138855U
Application number: CN202221075875.4U
Authority: CN
Inventors: 卢雯; 古善智; 李娟�
Original assignee: Hunan Cancer Hospital
Current assignee: Hunan Cancer Hospital
Priority date: 2022-05-07
Filing date: 2022-05-07
Publication date: 2022-08-09
Anticipated expiration: 2032-05-07

Abstract

The utility model relates to the technical field of medical equipment, specifically a hepatic artery pipe port system, including the barrel, can dismantle connect in the end cover on barrel top and locate the inside direction funnel of barrel, the end cover top has the through-hole, is equipped with in the end cover and leads funnel open-top confined silicon diaphragm, and the direction funnel bottom is 90 and buckles the outside of radially extending to the barrel along the barrel after buckling, and the inner wall at the position is buckled to the direction funnel is smooth curved surface, and the direction funnel has smooth internal surface. The utility model discloses a setting has the direction funnel of smooth internal surface, because the opening diameter of direction funnel is great for the silicon diaphragm allows the blind insertion of little pipe, has reduced the technical degree of difficulty when little pipe punctures the silicon diaphragm, simultaneously, because the perpendicular and human skin of great one end of direction funnel, consequently, on the little pipe through this direction funnel top can puncture skin perpendicularly very easily, compares traditional being on a parallel with the skin puncture, has reduced the puncture degree of difficulty.

Description

Hepatic artery duct port system

Technical Field

The utility model relates to the technical field of medical equipment, specifically be a hepatic artery pipe port system.

Background

Intra-arterial treatment of advanced liver cancer has a number of treatment options, with transarterial chemoembolization (TACE) using drug-eluting microspheres being widely used for liver metastases, such as colorectal cancer. Hepatic arterial perfusion chemotherapy (HAIC) is also an effective method for treating mCRC, generally speaking, for advanced liver cancer, TACE needs to be repeated, and previous reports show that in mCRC patients, TACE is performed 2-5 times using irinotecan-eluting microspheres, and that repeating TACE to prolong progression-free survival can improve overall survival, so smaller or biodegradable microspheres are innovative to improve TACE reproducibility, while after achieving tumor response using TACE, effective maintenance chemotherapy is needed, so alternative treatments for TACE and HAIC are effective.

At present, when TACE and HAIC are used for combined treatment, a latex rubber cap with a small puncture surface is generally used for connecting an indwelling catheter and implanting the indwelling catheter under the skin, a micro-catheter needs to puncture the rubber cap and then penetrates into the indwelling catheter, and the puncture technical difficulty is large due to the fact that the puncture target is small and the puncture direction is parallel to the skin.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a hepatic artery pipe port system can reduce the puncture difficulty of little pipe and improve the precision of puncture, has solved the great problem of the current little pipe puncture technique degree of difficulty.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a hepatic artery pipe port system, includes the barrel, can dismantle connect in the end cover on barrel top and locate the inside direction funnel of barrel, the end cover top has the through-hole, be equipped with in the end cover with direction funnel open-top confined silicon diaphragm, direction funnel bottom is 90 and buckles the back edge radially of barrel extends to the outside of barrel, the inner wall that the direction funnel buckled the position is smooth curved surface, just the direction funnel has smooth internal surface.

Optionally, the bottom of the outer wall of the end cover is provided with an external thread, the inner side of the top opening of the cylinder body is provided with an internal thread, and the end cover is matched with the internal thread through the external thread and is in threaded connection with the cylinder body.

Optionally, the through hole at the top of the end cover is smaller than the inner diameter of the end cover, the opening at the top of the cylinder is step-shaped, and the end cover fixes the guide funnel and the silicon diaphragm on the step surface of the opening at the top of the cylinder in a pressing manner.

Optionally, a pressing ring is arranged at the top of the inner side of the end cover, an inserting rod is arranged at the bottom of the pressing ring in a protruding mode, and a jack corresponding to the inserting rod is formed in the silicon diaphragm.

Optionally, the slope of the inner wall of the guide funnel is 60 °, and the diameter of the silicon diaphragm is 15 mm.

Optionally, the silicon diaphragm is provided with 7 puncture points, wherein one puncture point is arranged in the middle of the silicon diaphragm, three puncture points of the remaining six puncture points are arranged at 2mm from the center of the silicon diaphragm, and the last three puncture points are arranged at 4mm from the center of the silicon diaphragm.

Compared with the prior art, the utility model provides a hepatic artery pipe port system possesses following beneficial effect:

1. the utility model discloses a through setting up the direction funnel that has smooth internal surface, because the opening diameter of direction funnel is great, make the silicon diaphragm allow the blind insertion of little pipe, reduced the technical degree of difficulty when little pipe punctures the silicon diaphragm, simultaneously, because the great one end of direction funnel is perpendicular with human skin, consequently, can puncture the skin perpendicularly very easily through the little pipe at this direction funnel top, compare the traditional puncture of being parallel to the skin, reduced the puncture degree of difficulty;

2. the utility model can keep the silicon diaphragm in a tight state by arranging the compression ring and the inserted bar and arranging the insertion hole matched with the inserted bar on the silicon diaphragm, so that the silicon diaphragm can always cover the top opening of the guide funnel;

3. the utility model discloses a slope with the funnel inner wall is established to 60, and the diameter of silicon diaphragm is established to 15mm, according to the diameter of silicon diaphragm and the ratio of the inboard angle of funnel for this hepatic artery pipe port system can highly can control reasonable within range, and the hepatic artery pipe port system in this high range can accept subcutaneous implantation.

Drawings

Fig. 1 is a schematic view of a front view cross-sectional structure of the present invention;

FIG. 2 is a schematic top view of a silicon diaphragm according to the present invention;

fig. 3 is the schematic diagram of the structure of the pressure ring of the present invention.

In the figure: 1. a barrel; 2. a guide funnel; 3. an end cap; 30. a through hole; 4. a silicon diaphragm; 40. a jack; 41. a puncture point; 5. pressing a ring; 6. and (4) inserting the rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example (b): referring to fig. 1 to fig. 3, an embodiment of the present invention provides a technical solution: a hepatic artery duct port system comprises a barrel body 1, an end cover 3 detachably connected to the top end of the barrel body 1 and a guide funnel 2 arranged inside the barrel body 1, wherein a through hole 30 is formed in the top of the end cover 3, a silicon diaphragm 4 for sealing the top opening of the guide funnel 2 is arranged in the end cover 3, the bottom end of the guide funnel 2 bends for 90 degrees and then extends to the outside of the barrel body 1 along the radial direction of the barrel body 1, the inner wall of the bending part of the guide funnel 2 is a smooth curved surface, the guide funnel 2 is provided with a smooth inner surface, the smooth inner surface of the guide funnel 2 is formed by carefully polishing through a polishing machine, compared with the traditional latex rubber cap, the guide funnel 2 has a larger opening diameter, therefore, the silicon diaphragm 4 allows blind insertion of a micro-catheter, the technical difficulty when the micro-catheter punctures the silicon diaphragm 4 is reduced, and meanwhile, because the larger end of the guide funnel 2 is vertical to the skin of a human body, therefore, the micro-catheter at the top of the guide funnel 2 can easily vertically puncture the skin, and compared with the traditional method for puncturing the skin in parallel, the puncturing difficulty is reduced.

On the basis of above-mentioned embodiment, 3 outer wall bottoms of end cover in this embodiment are equipped with the external screw thread, and 1 open-top inboard of barrel is equipped with the internal thread, and end cover 3 is connected the mode that adopts threaded connection between end cover 3 and the barrel 1 through external screw thread fit internal thread and barrel 1 threaded connection, can make things convenient for the dismantlement and the change in 2 later stages of silicon diaphragm 4 and guide funnel.

In order to improve the stability of the silicon diaphragm 4, on the basis of the above embodiment, in this embodiment, the through hole 30 at the top of the end cap 3 is smaller than the inner diameter of the end cap 3, the top opening of the cylinder 1 is step-shaped, the end cap 3 presses and fixes the guide funnel 2 and the silicon diaphragm 4 on the step surface of the top opening of the cylinder 1, the top of the inner side of the end cap 3 is provided with the press ring 5, the bottom of the press ring 5 is protrudingly provided with the insert rod 6, the silicon diaphragm 4 is provided with the insert hole 40 corresponding to the position of the insert rod 6, when the press ring 5 is installed, the insert rod 6 at the bottom of the press ring 5 is inserted into the insert hole 40 on the silicon diaphragm 4, so that the tight state of the silicon diaphragm 4 can be maintained, and the silicon diaphragm 4 can always cover the top opening of the guide funnel 2.

In order to facilitate the subcutaneous implantation of the hepatic artery catheter port system, on the basis of the above embodiment, the slope of the inner wall of the guide funnel 2 is 60 ° in the present embodiment, and the diameter of the silicon septum 4 is 15mm, so that the hepatic artery catheter port system of the height can be subcutaneously implanted according to the ratio of the diameter of the silicon septum 4 to the inner angle of the funnel.

On the basis of the above embodiment, in the present embodiment, the silicon diaphragm 4 is provided with 7 puncture points 41, one puncture point 41 is arranged in the center of the silicon diaphragm 4, three of the remaining six puncture points 41 are arranged at 2mm from the center of the silicon diaphragm 4, and the last three puncture points 41 are arranged at 4mm from the center of the silicon diaphragm 4, so that a plurality of microcatheters can maintain reasonable intervals after passing through the plurality of puncture points 41 on the silicon diaphragm 4, thereby ensuring that each microcatheter does not interfere with each other and facilitating the puncture work of the microcatheter.

The working principle is as follows: implant the patient subcutaneously with this hepatic artery pipe port system, then adopt and keep somewhere needle puncture silicon diaphragm 4 back perpendicularly, take out the inner needle after, keep somewhere the needle with the micro catheter insertion again in, the micro catheter is worn out by the tip of guide funnel 2 along the smooth inner wall of guide funnel 2, insert on the patient's liver left and right sides artery through the side opening on the internal catheter of keeping somewhere of patient at last, through 290 degrees bending type settings with the guide funnel, make the micro catheter at this guide funnel 2 top can puncture perpendicularly very easily on the skin, the puncture degree of difficulty has been reduced, and simultaneously, the relative traditional latex rubber cap of guide funnel 2 has bigger opening diameter, the degree of difficulty of micro catheter insertion guide funnel 2 has been reduced like this, the micro catheter inserted precision has been improved simultaneously.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A hepatic artery catheter port system, comprising: including barrel (1), can dismantle connect in end cover (3) on barrel (1) top and locate barrel (1) inside direction funnel (2), end cover (3) top has through-hole (30), be equipped with in end cover (3) with direction funnel (2) open-top confined silicon diaphragm (4), direction funnel (2) bottom is 90 back edges of buckling the radial extension of barrel (1) reaches the outside of barrel (1), the inner wall at direction funnel (2) position of buckling is smooth curved surface, just direction funnel (2) has smooth internal surface.

2. The hepatic artery catheter port system of claim 1, wherein: the novel water-saving barrel is characterized in that external threads are arranged at the bottom of the outer wall of the end cover (3), internal threads are arranged on the inner side of the top opening of the barrel body (1), and the end cover (3) is matched with the internal threads through the external threads and is in threaded connection with the barrel body (1).

3. The hepatic artery catheter port system of claim 1, wherein: the through hole (30) in the top of the end cover (3) is smaller than the inner diameter of the end cover (3), the top opening of the cylinder body (1) is step-shaped, and the guide funnel (2) and the silicon diaphragm (4) are fixed on the step surface of the top opening of the cylinder body (1) in a pressing mode through the end cover (3).

4. The hepatic artery catheter port system of claim 3, wherein: the silicon diaphragm is characterized in that a pressing ring (5) is arranged at the top of the inner side of the end cover (3), an inserting rod (6) is arranged at the bottom of the pressing ring (5) in a protruding mode, and a jack (40) corresponding to the inserting rod (6) in position is formed in the silicon diaphragm (4).

5. The hepatic arterial catheter port system according to claim 1, wherein: the slope of the inner wall of the guide funnel (2) is 60 degrees, and the diameter of the silicon diaphragm (4) is 15 mm.

6. The hepatic arterial catheter port system according to claim 1, wherein: the silicon diaphragm (4) is provided with 7 puncture points (41), wherein one puncture point (41) is arranged in the middle of the silicon diaphragm (4), three of the remaining six puncture points (41) are arranged at 2mm from the center of the silicon diaphragm (4), and the last three puncture points (41) are arranged at 4mm from the center of the silicon diaphragm (4).