CN214550516U

CN214550516U - Implanted abdominal cavity subcutaneous chemotherapy device

Info

Publication number: CN214550516U
Application number: CN202022626017.1U
Authority: CN
Inventors: 钱军
Original assignee: Jiangsu Provincial Hospital of Chinese Medicine
Current assignee: Jiangsu Provincial Hospital of Chinese Medicine
Priority date: 2020-11-13
Filing date: 2020-11-13
Publication date: 2021-11-02
Anticipated expiration: 2030-11-13

Abstract

The utility model discloses an implanted abdominal cavity subcutaneous chemotherapy device, which belongs to the technical field of medical instruments. The device comprises a chemotherapy pump, a guide pipe and an auxiliary device, wherein the chemotherapy pump comprises a titanium alloy base, a cavity, a silica gel puncture window, a cover body and a one-way valve, the cavity is cylindrical and is arranged between the titanium alloy base and the cover body, the silica gel puncture window is in a round table shape, the bottom of the silica gel puncture window is arranged in the cavity, the top of the silica gel puncture window protrudes out of the cavity, and the one-way valve is arranged in the titanium alloy base and is connected with the cavity and the guide pipe; the pipe wall of the conduit is provided with a plurality of side grooves; the auxiliary device comprises a puncture positioning ring, and the puncture positioning ring is arranged outside the body and is opposite to the silica gel puncture window. The device can prevent the pipe jam, reduces puncture injury and medicine dispersion direction limitation, and the medicine is carried to the continuation steadily to ensure the chemotherapy effect.

Description

Implanted abdominal cavity subcutaneous chemotherapy device

Technical Field

The utility model belongs to the technical field of medical instrument, concretely relates to implanted abdominal cavity subcutaneous chemotherapy device.

Background

The abdominal cavity chemotherapy is a malignant tumor chemotherapy mode which directly perfuses chemotherapy drugs into the abdominal cavity, improves the drug concentration of the abdominal cavity and increases the local treatment effect. The abdominal cavity chemotherapy needs to be administered by abdominal cavity puncture, and the existing puncture methods are as follows: 1. disposable abdominal puncture, single treatment; 2. indwelling under laparoscopy or in surgery.

At present, the commonly used abdominal cavity chemotherapy administration modes in the medical oncology department are disposable abdominal puncture, single administration is carried out after a deep venous catheter is reserved, repeated puncture is needed for multiple administrations, and the pain and infection probability of a patient are increased; the indwelling catheter in laparoscope and surgery needs general or half-body anesthesia, has large operation trauma, and has limited application because some patients have no operation indication. The indwelling deep venous catheter is a catheter with a single cavity and a double cavity with an opening at the head end, and has the problems of catheter blockage and limitation of the direction of medicine dispersion.

In addition, when the existing implanted chemotherapy pump injects drugs, the area of the needle point of the injection needle inserted into the silica gel puncture window can only be judged by feeling because the pump body is implanted into the subcutaneous part and the puncture window can not be seen, so that the area range of the inserted needle body can not be accurately judged, the needle point of the injection needle penetrates through the subcutaneous part and the puncture window to reach the pump chamber can only be judged by feeling and experience, and whether the needle point part of the injection needle reaches the pump chamber or not can not be directly judged.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved is as follows: to the technical problem, the utility model provides an implanted abdominal cavity subcutaneous chemotherapy device, the device can prevent that the pipe from blockking up, reduces puncture injury and medicine dispersion direction limitation, continuously carries the medicine steadily to guarantee chemotherapy effect.

The technical scheme is as follows: an implantable abdominal cavity subcutaneous chemotherapy device comprises a chemotherapy pump, a catheter and an auxiliary device, wherein the chemotherapy pump comprises a titanium alloy base, a cavity, a silica gel puncture window, a cover body and a one-way valve, the cavity is cylindrical and is arranged between the titanium alloy base and the cover body, the silica gel puncture window is in a round table shape, the bottom of the silica gel puncture window is arranged in the cavity, the top of the silica gel puncture window protrudes out of the cavity, and the one-way valve is arranged in the titanium alloy base and is connected with the cavity and the catheter; the pipe wall of the conduit is provided with a plurality of side grooves; the auxiliary device comprises a puncture positioning ring, and the puncture positioning ring is arranged outside the body and is opposite to the silica gel puncture window.

Preferably, the auxiliary device further comprises a puncture needle, a guide wire, a guide rod and a syringe.

Preferably, the sidewall of the bottom of the titanium alloy base is further provided with a plurality of fixing holes protruding outwards along the radial direction.

Preferably, the outer surface of the catheter is provided with scale marks.

Preferably, the cover body is connected with the titanium alloy base through threads.

Has the advantages that: through keeping somewhere the implanted chemotherapy pump, can reserve the medicine, avoid many times puncture, reduce patient's painful sense and infection probability.

The silica gel puncture window of the chemotherapy pump is made of medical silica gel, can resist the repeated puncture of the syringe needle tube, and ensures repeated intraperitoneal chemotherapy. Meanwhile, the puncture positioning ring right opposite to the silica gel puncture window is arranged outside the body of the patient, the position of the silica gel puncture window can be accurately positioned, the failure of drug delivery is avoided, and the drug delivery efficiency is improved.

The titanium alloy base of the chemotherapy pump is made of medical titanium alloy materials, and whether the puncture needle reaches the inside of the chemotherapy pump can be accurately judged. The fixing hole protruding outwards is arranged on the side wall of the titanium alloy base of the chemotherapy pump, the chemotherapy pump can be fixed under the skin through a suture line, the chemotherapy pump is prevented from contacting the outside, infection can be effectively prevented, and long-time use is guaranteed.

The pipe wall of the catheter is provided with a plurality of side grooves, so that the pipe blocking probability can be reduced, the medicine dispersion range can be improved, and the medicine action range can be favorably improved.

The one-way valve can effectively prevent the backflow of liquid medicine, ascites and the like.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the disassembled structure of the chemotherapy pump;

the numerical references in the figures represent the following meanings: 1. a chemotherapy pump; 2. a conduit; 3. a puncture positioning ring; 11. a titanium alloy base; 12. a cavity; 13. a silica gel puncture window; 14. a cover body; 15. a one-way valve; 21. a side groove; 111. And (7) fixing holes.

Detailed Description

The invention will be further explained with reference to the drawings and the specific embodiments.

As shown in figure 1, the implantable abdominal cavity subcutaneous chemotherapy device comprises a chemotherapy pump 1, a catheter 2 and an auxiliary device.

As shown in fig. 2, the chemotherapy pump 1 includes a titanium alloy base 11, a cavity 12, a silica gel puncture window 13, a cover 14 and a one-way valve 15, wherein the cavity 12 is cylindrical and is disposed between the titanium alloy base 11 and the cover 14. The silica gel puncture window 13 is in a round table shape and made of medical silica gel, the bottom of the silica gel puncture window is arranged in the cavity 12, and the diameter of the bottom is slightly larger than the inner diameter of the cavity 12; the top of the cover body is protruded out of the cavity 12, and the diameter of the top of the cover body is equal to the inner diameter of the cover body 14. The one-way valve 15 is arranged in the titanium alloy base 11 and connected with the cavity 12 and the catheter 2, so that the liquid medicine can flow to the catheter 2 from the chemotherapy pump 1 in a one-way mode. The titanium alloy base 11 is made of medical titanium alloy material, and 3 fixing holes 111 protruding outwards along the radial direction are formed in the side wall of the bottom of the titanium alloy base. The cover 14 is connected with the titanium alloy base 11 through threads.

The pipe wall of the guide pipe 2 is provided with 2-3 side grooves 21, and the outer surface of the guide pipe 2 is provided with scale marks.

The auxiliary device comprises a puncture positioning ring 3, a puncture needle, a guide wire, a guide rod and an injector, wherein the puncture positioning ring 3 is arranged outside the body and is opposite to the silica gel puncture window 13.

The implantation process of the device is as follows: under the local anesthesia, a puncture needle is used for puncturing the abdominal cavity under the ultrasonic guidance, a guide wire is introduced, a guide pipe is introduced into the abdominal cavity through the guide wire, a small subcutaneous incision is made on the abdominal wall, subcutaneous adipose tissues are separated in a blunt manner, a bag is prepared in advance, the guide rod is used for guiding the guide pipe from a puncture point to the bag through the subcutaneous tissue, the guide pipe is fixedly connected with a subcutaneous indwelling chemotherapy pump through a locking device, the chemotherapy pump is buried under the skin, and the incision is sutured.

When the abdominal cavity chemotherapy is carried out, the conventional skin disinfection is firstly carried out, the injector vertically penetrates through the position of the puncture positioning ring on the skin and the silica gel puncture window of the subcutaneous chemotherapy device to reach the titanium alloy base, after the medicine injection is finished, the injector is pulled out, and then the heparin saline is injected to seal the tube, so that the blockage of a cavity or a catheter is prevented. When ascites or redundant chemotherapy drugs exist in the abdominal cavity and need to be extracted, the ascites or the chemotherapy drugs can be extracted by the syringe through the chemotherapy device.

The scope of the present invention is not limited to the above-described embodiments, and it is apparent that those skilled in the art can make various modifications and variations to the present invention without departing from the scope and spirit of the present invention. It is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.

Claims

1. An implantable abdominal cavity subcutaneous chemotherapy device is characterized by comprising a chemotherapy pump (1), a catheter (2) and an auxiliary device, wherein the chemotherapy pump (1) comprises a titanium alloy base (11), a cavity (12), a silica gel puncture window (13), a cover body (14) and a one-way valve (15), the cavity (12) is cylindrical and is arranged between the titanium alloy base (11) and the cover body (14), the silica gel puncture window (13) is in a truncated cone shape, the bottom of the silica gel puncture window is arranged in the cavity (12), the top of the silica gel puncture window protrudes out of the cavity (12), and the one-way valve (15) is arranged in the titanium alloy base (11) and is connected with the cavity (12) and the catheter (2); the pipe wall of the conduit (2) is provided with a plurality of side grooves (21); the auxiliary device comprises a puncture positioning ring (3), wherein the puncture positioning ring (3) is arranged outside the body and is just opposite to the silica gel puncture window (13).

2. The implantable intraperitoneal chemotherapy device according to claim 1, wherein the auxiliary device further comprises a puncture needle, a guide wire, a guide rod and a syringe.

3. The implantable intraperitoneal chemotherapy device according to claim 1, wherein the bottom side wall of the titanium alloy base (11) is further provided with a plurality of fixing holes (111) protruding outwards in the radial direction.

4. An implantable intraperitoneal chemotherapy device according to claim 1, wherein the outer surface of the catheter (2) is provided with scale marks.

5. An implantable intraperitoneal chemotherapy device according to claim 1, wherein the cover (14) is connected with the titanium alloy base (11) through screw threads.