CN216317875U

CN216317875U - Implanted subarachnoid cavity administration device

Info

Publication number: CN216317875U
Application number: CN202122193524.5U
Authority: CN
Inventors: 江天生; 李承晓
Original assignee: Changsha Hongya Medical Technology Co ltd
Current assignee: Changsha Hongya Medical Technology Co ltd
Priority date: 2021-09-10
Filing date: 2021-09-10
Publication date: 2022-04-19
Anticipated expiration: 2031-09-10

Abstract

The utility model discloses an implanted subarachnoid cavity administration device which comprises an infusion port body, wherein fixing wings are arranged on two sides of the infusion port body, a silica gel puncture membrane is arranged in the center of the tail face of the infusion port body, an integrally formed metal inner cavity is arranged in the infusion port body, a conical outflow end is arranged at the front end of the metal inner cavity and is connected with an administration catheter, a threaded steel wire is arranged in the tube wall of the tail end of the administration catheter for reinforcement, a detachable fixing clamping sleeve is arranged at the tail end of the administration catheter, a reverse fixing anchor is arranged on the surface of the fixing clamping sleeve, a polyester sleeve is sleeved outside a steel wire hose part of the administration catheter, and the head end of the administration catheter is provided with a hole and three side holes. The small-size device of dosing of this application design can more accord with the patient and use needs, and special reverse anchor can reduce the risk of infusion port body displacement or upset, and the dacron cover can prevent the emergence of subcutaneous bag cerebrospinal fluid leakage and cyst, and the terminal screw thread steel wire hose section of pipe of dosing can effectively prevent the pipe deformation of buckling, effectively prevents the obstructed risk of pipe.

Description

Implanted subarachnoid cavity administration device

Technical Field

The utility model relates to the technical field of subarachnoid cavity administration, in particular to an implanted subarachnoid cavity administration device.

Background

At present, the incidence rate of the global malignant tumor is increased year by year, 60 to 70 percent of patients with the malignant tumor suffer from cancer pain, and about 10 to 20 percent of patients with the advanced tumor still have poor effect or are difficult to tolerate the side effect caused by large dose of analgesic drugs even if the patients are treated by the standard three-step analgesic drugs. The central nervous system drug delivery technology adopting subarachnoid cavity morphine infusion can have strong analgesic effect, and the current subarachnoid cavity drug delivery devices at home and abroad are all designed to have the puncturing silica gel septum facing upwards, and the surgical incision required by port seat implantation is larger. In addition, the joint of the administration catheter and the transfusion harbor body of the existing subarachnoid cavity administration device is easy to be broken, and the catheter can be blocked and the administration operation can be influenced, so that the implantable subarachnoid cavity administration device which has a certain deformation function, is convenient for the implantation of a small incision and is difficult to break at the joint of the administration catheter and the transfusion harbor body is needed.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a solution to the above-mentioned problems of the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an implanted arachnoid cavity of resorption device of dosing, includes the infusion harbor body, infusion harbor body both sides are equipped with the elastic fixation wing, the internal portion of infusion harbor is equipped with the metal cavity, metal cavity one end is equipped with silica gel puncture diaphragm, and the other end is equipped with the metal cavity end of flowing, the metal cavity end of flowing is toper hollow structure, the metal cavity end of flowing is kept away from metal cavity has cup jointed fixed cutting ferrule to the metal cavity end of flowing, the one end fixedly connected with pipe of dosing that the metal cavity end of flowing was kept away from to fixed cutting ferrule, the pipe of dosing is kept away from the one end of fixed cutting ferrule and is equipped with a trompil, lateral wall has three side opening.

Preferably, the metal inner cavity is inserted into the infusion port body and is fixedly connected with the inner wall of the infusion port body through the injection molding base.

Preferably, the metal inner cavity and the outflow end of the metal inner cavity are integrally formed.

Preferably, the silica gel puncture diaphragm 7 is fixedly sealed at one end of the metal inner cavity far away from the outflow end of the metal inner cavity.

Preferably, the end of the outflow end of the metal inner cavity, which is far away from the metal inner cavity, is a tower-shaped joint and is sleeved in the fixed clamping sleeve.

Preferably, one end of the administration catheter close to the fixing clamping sleeve is a threaded steel wire hose section, and the threaded steel wire hose section is fixedly connected with the fixing clamping sleeve.

Preferably, the surface of the threaded steel wire hose is sleeved with a polyester sleeve.

Preferably, the surface of the fixing cutting sleeve is provided with a reverse fixing anchor, and the reverse fixing anchor is of a barb-shaped structure with a passivated end part.

Preferably, the reverse anchor is of a trumpet-like configuration.

Preferably, the transfusion harbor body and the fixed wings are made of soft TPU materials, the total length of the transfusion harbor body is 13-15mm, and the height of the silica gel puncture diaphragm is 6-8 mm.

Has the advantages that:

1. the infusion port provided by the utility model adopts soft materials, has a certain deformation function, well realizes minimally invasive incision implantation, and obviously reduces foreign body sensation after implantation;

2. the unique integrated molding design of the metal inner cavity of the implanted subarachnoid cavity administration device can be matched with the use of a straight nondestructive needle, so that the straight needle puncture operation and the daily care are realized

3. The tail end of the administration catheter of the implanted subarachnoid cavity administration device assembly is provided with a threaded steel wire hose section, so that the influence of the folding of the connection part of the administration catheter and the port body of the transfusion to block the administration catheter on administration can be prevented;

4. the fixing clamping sleeve in the implanted subarachnoid cavity administration device strengthens connection between an administration catheter and a through hole at the outflow end of a metal inner cavity, the reverse fixing structure on the surface of the fixing clamping sleeve is made of soft materials such as silica gel and the like, obvious discomfort of a patient cannot be caused, the stability of an infusion harbor body and the catheter can be maintained, and a terylene sleeve outside the administration catheter can effectively prevent cerebrospinal fluid leakage and pseudocyst.

5. The implantable subarachnoid space administration device is small in size and can be used for pediatric patients.

Drawings

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

FIG. 2 is a left side view of the port body of FIG. 1;

FIG. 3 is a schematic view of the trailing end of the administration catheter of the present invention.

In the figure: 1. a transfusion harbor body; 2. an administration catheter; 3. fixing the clamping sleeve; 4. polyester sleeves; 5. A metal inner cavity; 6. a metal lumen outflow end; 7. puncturing the diaphragm by silica gel; 8. a fixed wing; 9. A threaded steel wire hose section; 10. reverse anchor fixing; 11. an outlet hole; 12. a side hole; 13. and (5) injection molding the base.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.

Referring to fig. 1-3, the present invention provides a technical solution: a child subarachnoid cavity drug delivery device assembly comprises a transfusion harbor body 1, wherein elastic fixing wings 8 are arranged on two sides of the transfusion harbor body 1, the transfusion harbor body 1 and the fixing wings 8 are made of soft TPU materials, the chemical property is stable, the elasticity is good, the extrusion deformation is convenient, a small incision can be conveniently placed, the total length of the transfusion harbor body 1 is 13-15mm, a metal cavity 5 is arranged in the transfusion harbor body 1, a silica gel puncture diaphragm 7 is arranged at one end of the metal cavity 5, a metal cavity outflow end 6 is arranged at the other end of the metal cavity 5, the height of the silica gel puncture diaphragm 7 is 6-8mm, the metal cavity outflow end 6 is in a conical hollow structure, the metal cavity outflow end 6 is communicated with the metal cavity 5, a fixed clamping sleeve 3 is sleeved at one end of the metal cavity outflow end 6, which is far away from the metal cavity outflow end 5, a drug delivery catheter 2 is fixedly connected with one end of the fixed clamping sleeve 3, which is far away from the metal cavity outflow end 6, fixed cutting ferrule 3 can strengthen the medicine delivery pipe 2 and the metal inner chamber flow between the end 6 is connected, make the dismouting of being convenient for between medicine delivery pipe 2 and the metal inner chamber flow 6, the one end passivation of fixed cutting ferrule 3 is kept away from to medicine delivery pipe 2, the one end that fixed cutting ferrule 3 was kept away from to medicine delivery pipe 2 is equipped with a trompil 11, the lateral wall has three side opening 12, 12 staggered arrangements of three side opening, the design of the many trompils of 2 tails ends of medicine delivery pipe can let the medicine injection distribute more evenly and avoid stifled pipe.

The metal inner cavity 5 is inserted in the transfusion harbor body 1 and is fixedly connected with the inner wall of the transfusion harbor body 1 through an injection molding base 13, and the injection molding base 13 is made of TPU.

The metal inner cavity 5 and the metal inner cavity outflow end 6 are integrally formed.

The silica gel puncture membrane 7 is fixedly sealed at one end of the metal inner cavity 5 far away from the outflow end 6 of the metal inner cavity.

The metal inner chamber outflow end 6 is kept away from 5 one end of metal inner chamber and is the turriform joint and cup joints in fixed cutting ferrule 3, and the turriform connects and 3 inner walls interference fit of fixed cutting ferrule, makes the dismouting of being convenient for between administration pipe 2 and the metal inner chamber outflow end 6, and connects stably.

The one end that pipe 2 of dosing is close to fixed cutting ferrule 3 is screw thread steel wire hose section 9, screw thread steel wire hose section 9 and fixed cutting ferrule 3 fixed connection, is equipped with the screw thread steel wire in the pipe wall of screw thread steel wire hose section 9, can conveniently adjust pipe 2 of dosing on the one hand through setting up screw thread steel wire hose section 9, and on the other hand can also prevent to give medicine pipe 2 and infusion port body junction and break the blockage and give medicine the pipe influence and dose.

The surface of the threaded steel wire hose 9 is sleeved with the polyester sleeve 4, and the polyester sleeve 4 is arranged to effectively prevent cerebrospinal fluid leakage and pseudocyst.

The fixed cutting ferrule 3 surface is equipped with reverse anchor 10, reverse anchor 10 is the barb form structure of tip passivation, as an alternative, reverse anchor 10 is loudspeaker form, through setting up reverse anchor 10, can strengthen the stability of infusion harbor body 1 and fixed cutting ferrule 3, reduce the risk of infusion harbor body 1 displacement or upset, reverse anchor 10 adopts flexible material to make like soft medical silica gel, after burying like patient subcutaneous soft tissue, can not cause patient's obvious uncomfortable sense.

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 utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an implanted arachnoid cavity of resorption device of dosing, includes infusion port body (1), its characterized in that, infusion port body (1) both sides are equipped with elastic fixation wing (8), infusion port body (1) inside is equipped with metal cavity (5), metal cavity (5) one end is equipped with silica gel puncture diaphragm (7), and the other end is equipped with metal cavity outflow end (6), metal cavity outflow end (6) are toper hollow structure, fixed cutting ferrule (3) have been cup jointed to the one end that metal cavity (5) were kept away from in metal cavity outflow end (6), the one end fixedly connected with who keeps away from metal cavity outflow end (6) pipe (2) of dosing, the one end that fixed cutting ferrule (3) were kept away from in pipe (2) of dosing is equipped with one trompil (11), the lateral wall has three side opening (12).

2. The implantable subarachnoid drug delivery device according to claim 1, wherein the metal lumen (5) is inserted into the port body (1) and is fixedly connected to the inner wall of the port body (1) through an injection molded base (13).

3. The implantable subarachnoid delivery device according to claim 1, wherein the metal lumen (5) is integrally formed with a metal lumen outflow end (6).

4. The implantable subarachnoid drug delivery device according to claim 1, wherein the silicone puncture membrane (7) fixedly seals an end of the metal lumen (5) away from an outflow end (6) of the metal lumen.

5. The implantable subarachnoid drug delivery device according to claim 1, wherein the metal lumen outflow end (6) is a tower-shaped joint at the end away from the metal lumen (5) and is sleeved in the fixing sleeve (3).

6. The implantable subarachnoid space administration device according to claim 1, wherein one end of the administration catheter (2) close to the fixing clamp sleeve (3) is a threaded steel wire hose section (9), and the threaded steel wire hose section (9) is fixedly connected with the fixing clamp sleeve (3).

7. The implantable subarachnoid drug delivery device according to claim 6, wherein the dacron sleeve (4) is sleeved on the surface of the threaded steel wire hose section (9).

8. The implantable subarachnoid drug delivery device according to claim 1, wherein the fixing clamp sleeve (3) is provided with a reverse fixing anchor (10) on the surface, and the reverse fixing anchor (10) is a barb-shaped structure with a blunt end.

9. The implantable subarachnoid drug delivery device according to claim 8, wherein the reverse anchor (10) is in a horn-like configuration.

10. The implantable subarachnoid drug delivery device according to claim 1, wherein the port body (1) and the fixing wings (8) are made of a soft TPU, the overall length of the port body (1) is 13-15mm, and the height of the silicone puncture membrane (7) is 6-8 mm.