CN107050563A - A kind of telepathy guiding implanted wall of the chest port - Google Patents

Abstract

The invention discloses an implantable chest wall port guided by electrocardiography, which comprises a puncture seat of an infusion port and a liquid storage tank arranged in the inner cavity of the puncture seat of the infusion port. There is a layered puncture septum sealed with the liquid storage tank, and a PCB board is fitted inside the infusion port puncture seat on one side of the liquid storage tank, and the liquid storage tank is connected to the catheter lock on the surface of the infusion port puncture seat , and the end of the catheter lock is connected to one end of the catheter, and the other end of the catheter is connected to the access tube of the wedge-shaped structure that is socketed with the vascular sheath, and the access tube is socketed into the lumen of the vascular sheath, and the tube One end of the sheath is connected to one end of the micro-cannula sheath, and the other end of the micro-cannula sheath is connected to the Seidinger puncture pack, and the surface of the Seidinger puncture pack is vertically provided with a puncture needle tube communicating with the micro-cannula sheath. The invention has a reasonable structural design, does not need X-ray assistance, and does not need to worry about whether the position of the catheter is placed accurately.

Description

An electrocardiographically guided implantable chest wall port

technical field

The invention relates to an infusion port, in particular to an implantable chest wall port guided by electrocardiography, and belongs to the technical field of medical equipment applications.

Background technique

The most critical step in the placement of the infusion port is that the tip of the catheter should be placed at the level of the superior vena cava, that is, the 6th and 7th thoracic vertebrae. In order to ensure accurate positioning of the catheter, the interventionalist must place the catheter at X during operation. Catheter positioning is completed under the guidance of wires. Both patients and doctors need to be exposed to a lot of radiation, which may have an adverse effect on the health of patients and doctors. Auxiliary, they often roughly estimate the length and position of the catheter, so the infusion port of the oncology department often finds that the position of the catheter is incorrectly positioned during the postoperative X-ray review, which increases the cost of using the infusion port. Therefore, in view of the above problems, a kind of electrocardiographically guided implantable chest wall port is proposed.

Contents of the invention

The object of the present invention is to provide an implantable chest wall port guided by electrocardiography in order to solve the above problems.

The present invention achieves the above object through the following technical solutions. An implantable chest wall port guided by electrocardiography includes an infusion port puncture seat and a liquid storage tank arranged in the inner cavity of the infusion port puncture seat. A layered puncture compartment sealed with the liquid storage tank is provided at the surface of the port puncture seat, and a PCB board is fitted inside the infusion port puncture seat on one side of the liquid storage tank, and the liquid storage tank is connected to the infusion tank. The catheter lock on the surface of the port puncture seat, and the end of the catheter lock is connected to one end of the catheter, and the other end of the catheter is connected to the access tube of the wedge-shaped structure that is sleeved with the vascular sheath, and the access tube is sleeved to the blood vessel Sheath cavity, one end of the vascular sheath is connected to one end of the micro-cannula sheath, and the other end of the micro-cannula sheath is connected to the Seidinger puncture bag, and the surface of the Seidinger puncture bag is vertically provided with the micro-cannula sheath. The puncture needle tube connected with the tube sheath.

Preferably, a 1mV scaler, filter, drive amplifier, preamplifier and isolator are integrated on the surface of the PCB board, one end of the filter is electrically connected to the lead selector, and the lead selector passes through the front The pre-amplifier is connected to an isolator, which is connected to a driver amplifier at one end.

Preferably, a 1mV scaler is connected between the lead selector and the preamplifier, and the 1mV scaler and the preamplifier are connected in parallel.

Preferably, one end of the filter is internally electrically connected to a metal electrode located on the side of the puncture needle tube on the surface of the Seidinger puncture pack, and the metal electrode is integrated with the surface of the Seidinger puncture pack or has an inseparable structure after installation .

Preferably, the connection ends among the catheter, the vascular sheath, the access tube, the micro-cannula sheath and the Seidinger puncture bag are interference-fit connections.

The beneficial effects of the present invention are: the present invention has a reasonable structural design, does not need X-ray assistance, and does not worry about whether the position of the catheter is placed accurately. The 1mV scaler, filter, drive amplifier, lead selector, Amplifiers and isolators constitute a small electrocardiographic sensing device, using the metal electrode connected to the filter and set on the surface of the Seidinger puncture bag as the input terminal, sensing the position of the entire metal electrode, and using the closer the catheter position to the heart to feel The stronger the heart beat is, at the same time, there will be an abnormal P wave after reaching the position to determine whether it has reached the designated position. Since the access tube is a wedge-shaped structure, it is convenient for the socket of the access tube and the end of the vascular sheath, and is easy to install. To facilitate the work of medical staff.

Description of drawings

Fig. 1 is a schematic diagram of the structure of the puncture seat of the infusion port of the present invention;

Fig. 2 is the structural representation of catheter, vascular sheath, micro-cannula sheath and Seidinger puncture bag of the present invention;

Fig. 3 is a schematic diagram of the structure of the PCB board of the present invention.

In the figure: 1. Infusion port puncture seat, 2. Liquid storage tank, 3. Puncture septum, 4. PCB board, 401, 1mV scaler, 402, filter, 403, drive amplifier, 404, lead selector, 405, preamplifier, 406, isolator, 5, catheter lock, 6, catheter, 7, blood vessel sheath, 701, access tube, 8, micro-intubation sheath, 9, Seidinger puncture bag, 901, puncture needle tube , 10. Metal electrodes.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Please refer to Figures 1-3, an implantable chest wall port guided by electrocardiographic induction, including an infusion port puncture seat 1 and a liquid storage tank 2 arranged in the inner cavity of the infusion port puncture seat 1, the end of the liquid storage tank 2 A puncture partition 3 of layered structure that is sealed with the liquid storage tank 2 is provided at the place that communicates with the surface of the puncture seat 1 of the infusion port. The liquid storage tank 2 is connected to the catheter lock 5 located on the surface of the infusion port puncture seat 1, and the end of the catheter lock 5 is connected to one end of the catheter 6, and the other end of the catheter 6 is connected to a wedge-shaped sheath 7 socketed with it. The access tube 701 of the structure, the access tube 701 is sleeved to the lumen of the vascular sheath 7, one end of the vascular sheath 7 is connected to one end of the micro-cannula sheath 8, and the micro-cannula sheath 8 is connected to the corresponding other end To the Seidinger puncture pack 9, the surface of the Seidinger puncture pack 9 is vertically provided with a puncture needle tube 901 communicating with the microcannula sheath 8.

As a technical optimization solution of the present invention, the surface of the PCB 4 is integrated with a 1mV scaler 401, a filter 402, a drive amplifier 403, a preamplifier 405 and an isolator 406, and one end of the filter 402 is electrically connected to To the lead selector 404, the lead selector 404 is connected to the isolator 406 through the preamplifier 405, and one end of the isolator 406 is connected to the drive amplifier 403 to realize electrocardiographic induction.

As a technical optimization scheme of the present invention, a 1mV scaler 401 is connected between the lead selector 404 and the preamplifier 405, and the 1mV scaler 401 and the preamplifier 405 are connected in parallel to realize ECG induction.

As a technical optimization scheme of the present invention, one end of the filter 402 is electrically connected to the metal electrode 10 on one side of the puncture needle tube 901 on the surface of the Seidinger puncture pack 9, and the metal electrode 10 is connected to the Seidinger puncture pack. 9 The surface forms an integrated structure or cannot be disassembled after installation, making the whole structure more compact.

As a technical optimization scheme of the present invention, the connecting ends between the catheter 6, the vascular sheath 7, the access tube 701, the micro-cannula sheath 8 and the Seidinger puncture bag 9 are all interference-fit connections, improving each The tightness of the connection structure between components.

When the present invention is in use, the components on the surface of the entire PCB board 4 are connected to the display screen for displaying the electrocardiogram through the drive amplifier 403, and the Seidinger puncture pack 9 is introduced into the inside of the human body. The metal electrode 10 senses the beating of the patient's heart, and the beating information induced by the metal electrode 10 is processed by the filter 402, then processed and transmitted to the drive amplifier 403 through the lead selector 404, the preamplifier 405 and the isolator 406, and passed through the drive amplifier 403 transmits information to the display screen connected to it. When abnormal P waves appear on the display screen, the Seidinger puncture pack 9 with metal electrodes 10 arrives at a suitable position to realize star electric inductive implantation at the infusion port.

Among the present invention, 1mV scaler 401 is a modular 1mV scaler 401, and its preferred model is FH463B; filter 402 is a modular filter 402, and its preferred model is simulink; drive amplifier 403 It is a modular drive amplifier 403, and its preferred model is VLA517-01R; the lead selector 404 is a lead selector 404 for an electrocardiograph; the preferred model of the preamplifier 405 is NW4-HB-873; the isolation The device 406 is a modular common isolation circuit.

It will be apparent to those skilled in the art that the invention is not limited to the details of the above-described exemplary embodiments, but that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Accordingly, the embodiments should be regarded in all points of view as exemplary and not restrictive, the scope of the invention being defined by the appended claims rather than the foregoing description, and it is therefore intended that the scope of the invention be defined by the appended claims rather than by the foregoing description. All changes within the meaning and scope of the same elements are included in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

In addition, it should be understood that although this specification is described according to implementation modes, not each implementation mode only includes an independent technical solution, and this description in the specification is only for clarity, and those skilled in the art should take the specification as a whole , the technical solutions in the various embodiments can also be properly combined to form other implementations that can be understood by those skilled in the art.

Claims (5)

1. An electrocardiographically guided implantable chest wall port, comprising an infusion port puncture seat (1) and a liquid storage tank (2) arranged in the inner cavity of the infusion port puncture seat (1), characterized in that: the liquid storage The end of the groove (2) communicates with the surface of the infusion port puncture seat (1) and is provided with a layered structure puncture compartment (3) that is sealed with the liquid storage tank (2). The interior of the infusion port puncture seat (1) is located One side of the tank (2) is fitted with a PCB board (4), the liquid storage tank (2) is connected to the catheter lock (5) located on the surface of the infusion port puncture seat (1), and the end of the catheter lock (5) is connected to to one end of the catheter (6), the other end of the catheter (6) is connected to a wedge-shaped access tube (701) socketed with the vascular sheath (7), and the access tube (701) is socketed To the lumen of the vascular sheath (7), one end of the vascular sheath (7) is connected to one end of the micro-cannula sheath (8), and the corresponding other end of the micro-cannula sheath (8) is connected to the Seidinger puncture bag ( 9), the surface of the Seidinger puncture pack (9) is vertically provided with a puncture needle tube (901) communicating with the microcannula sheath (8). 2. A kind of electrocardiographic induction guided implantable chest wall port according to claim 1, characterized in that: the surface of the PCB (4) is integrated with a 1mV scaler (401), a filter (402), a driver Amplifier (403), preamplifier (405) and isolator (406), one end of the filter (402) is electrically connected to the lead selector (404), and the lead selector (404) passes through the preamplifier The amplifier (405) is connected to an isolator (406), which is connected at one end to a driving amplifier (403). 3. A kind of electrocardiographic induction guided implantable chest wall port according to claim 2, characterized in that: a 1mV scaler (401) is connected between the lead selector (404) and the preamplifier (405) ), and the 1mV scaler (401) and the preamplifier (405) are connected in parallel with each other. 4. An electrocardiographically guided implantable chest wall port according to claim 1 or 2, characterized in that: one end of the filter (402) is electrically connected to the surface of the Seidinger puncture bag (9). The metal electrode (10) on one side of the puncture needle tube (901), the metal electrode (10) is integrated with the surface of the Seidinger puncture bag (9) or has an inseparable structure after installation. 5. A kind of electrocardiographic induction guided implantable chest wall port according to claim 1, characterized in that: said catheter (6), vascular sheath (7), access tube (701), micro-intubation sheath ( 8) and the connecting ends between the Seidinger puncture bag (9) are interference fit connections.