CN103815961B - A kind of coagulation probe through bronchoscope - Google Patents

Abstract

The invention relates to the field of medical equipment, and discloses a bronchoscopic electrocoagulation probe, which passes through the biopsy channel of the bronchoscope and connects the electrocoagulation wire and the electrode, and is characterized in that the electrocoagulation probe includes two probes, two The two probes are pivotally connected; the electrocoagulation probe is also provided with a control line, and the end of the control line is connected to the control handle; the electrocoagulation probe is fixed on the base, the base is hollow, and the electrocoagulation line and the control line pass through the inner hole of the base. The electrocoagulation probe can rotate around the connection point, and the control line moves up and down, and its movement drives the connection point, which can be converted into the rotational movement of the probe to achieve the effect of adjusting the angle of the probe. The present invention changes the cylindrical electrocoagulation probe into two, which can increase the burning range; the two probes are pivotally connected and can rotate around the connection point, and the rotation angle depends on the movement of the control wire and the connection relationship between the probe, the base and the control wire Adjustment, by pulling the control line, the opening size of the two probes can be adjusted to change the burning range.

Description

A bronchoscopic electrocoagulation probe

technical field

The invention belongs to the field of medical devices, and in particular relates to an electrocoagulation probe used for penetrating a bendable bronchoscope for electrocoagulation during the treatment of benign airway stenosis.

Background technique

Benign airway stenosis is a common disease of the respiratory system, which can lead to respiratory failure and even life-threatening in severe cases. It is often necessary to treat the stenosis with a flexible bronchoscope. One of the currently commonly used methods is to electrocoagulate the stenosis through a flexible bronchoscope. The high-frequency current is concentrated on a point in contact with it to generate heat to the local tissue of the human body, and cauterization of the lesion can relieve airway stenosis. The operation requires a bronchoscope, a high-frequency electrocautery instrument and the corresponding electric knife, electrocoagulation probe, snare and other instruments. During the clinical operation, the patient was placed in the supine position, and ECG monitoring and blood oxygen saturation monitoring were given. Tie the central electrode plate to the lower limbs of the patient, and follow the routine operation of the electronic bronchoscope. After local anesthesia, the endoscope is inserted through the nose. After confirming the lesion, the tip of the endoscope is sent to the vicinity of the lesion. When it touches the surface of the lesion, turn on the therapeutic device, select the best treatment mode, start burning with the foot switch, and stop the operation when the lumen is unobstructed. The electrocoagulation probe is also called a high-frequency electrotome in the field.

Due to the limitation of the inner diameter of the biopsy channel of the bendable bronchoscope, the current electrocoagulation probe is cylindrical, with a diameter of about 2 mm and an effective coagulation length of about 2.5 mm. The burning range is relatively small and the efficiency is relatively low. Chinese Patent Publication No. "CN201609409 U", Application No. "201020118429.8", and the invention titled "An Improved Medical High-Frequency Electric Knife" disclose a high-frequency electric knife, including an electric knife head and a casing. There is a high-temperature-resistant insulating sleeve on the head, and the appropriate length of the high-temperature-resistant insulating sleeve can be selected according to the size of the surgical field. This invention increases the axial cauterization range of electrocoagulation, but is still limited by the biopsy channel of the bronchoscope in the radial direction.

Contents of the invention

The object of the present invention is to overcome the shortcoming of the prior art that the burning range is small, and provide an electrocoagulation probe with a large burning range and an adjustable radial range.

Technical scheme of the present invention is as follows:

A bronchoscopic electrocoagulation probe passes through the biopsy channel of the bronchoscope to connect the electrocoagulation wire and the electrode. The electrocoagulation probe includes two electrodes connected by a pivot; the electrode is also provided with a manipulation line, The control line is composed of a bayonet and a steel wire, the bayonet controls the rotation of the two electrodes, and the end of the steel wire is connected to the control handle; the electrode is fixed on the base, the base is hollow, and the electrocoagulation wire and the steel wire pass through the inner hole of the base.

The electrode can rotate around the connection point, and the control line moves up and down, and its movement drives the connection point, which can be converted into a rotational movement of the electrode to achieve the effect of adjusting the angle of the electrode.

The angle of adjustment can be between 0° and 180°. It is preferable to set four gears of 0°, 60°, 120° and 180°, which are set on the handle, and the end of the steel wire moves to the four gears to control the opening and closing of the two electrodes. closing angle.

There are many ways to connect the electrodes, control wires, and base. The preferred connection mode is that the electrocoagulation probe also includes two connecting pieces, the two electrodes are pivotally connected, and the two ends are fixed on the base; the tail end of the electrode and the connecting piece connected, the two connecting pieces are connected to each other; the manipulation line is connected to the connecting point of the connecting piece.

The preferred connection method is that the control line is composed of a bayonet and a steel wire, and the bayonet is fastened on the connecting shaft of the two electrodes; slideways are provided at the tail ends of the two electrodes, and the connecting shaft is along the two The slideway of the electrode moves vertically; the outer edges of the two electrodes are riveted to the opposite sides of the base, the connection point is symmetrical to the center of the base, and the two electrodes rotate around the connection point. With this connection method, there is no protruding object beside the base, and the base can be sunk into the bendable bronchoscope, which lengthens the effective coagulation length and saves space.

One end of the electrocoagulation wire is connected to the positive electrode, and the other end is respectively connected to the two electrodes.

Preferably, the two electrodes are semi-cylindrical probes. The electrode tip is arc-shaped.

Preferably, the two semicircular electrodes have a diameter of 2mm and a length of 3mm.

The present invention improves the existing technology by changing the cylindrical electrocoagulation probes into two, which can increase the range of burning; the two probes are pivotally connected and can rotate around the connection point, and the rotation angle is controlled by the movement of the control line and the electrode, base, etc. The connection relationship between the seat and the control line is adjusted. By pulling the control line, the opening size of the two electrodes can be adjusted to change the burning range, which is beneficial to the operation of the operator; the electrode connection method is selected by riveting the outer edge of the electrode to the opposite side of the base. , the connection point is center-symmetrical with the center of the base as the reference center, and the bayonet of the control line is clamped on the connection shaft of the electrode, and a slideway is provided at the tail end of the electrode. , to lengthen the effective coagulation length. The beneficial effect of the invention is that the structure is simple, the operation is convenient, the burning range is increased, and the operation efficiency is improved.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a schematic diagram of the connection relationship between the control line and the probe in the present invention;

Fig. 3 is the structural representation of probe of the present invention;

Fig. 4 is the schematic diagram of another kind of structure of the present invention;

Fig. 5 is the schematic diagram when the present invention is used;

Fig. 6 is a partial enlarged view of A in Fig. 5;

Among them, 1-electrode 11-slide 2-manipulation line 21-bayonet

22-steel wire 3-base 4-connecting shaft 5-connecting piece

6-Control handle

detailed description

The best implementation mode of the present invention will be further described in detail according to the embodiments and accompanying drawings.

Example 1:

A bronchoscopic electrocoagulation probe passes through the biopsy channel of the bronchoscope and connects the electrocoagulation wire and the electrodes. The electrocoagulation probe includes two electrodes 1 connected by pivots; the electrodes 1 are also provided with a manipulation Line 2, the control line is composed of a bayonet 21 and a steel wire 22, the bayonet 21 controls the rotation of the two probes, the end of the steel wire 22 is connected to the control handle; the electrode 1 is fixed on the base, the base 3 is hollow, and the electrocoagulation wire and the steel wire are both Through the inner hole of the base 3.

Example 2:

As shown in Figures 1 to 3, a bronchoscopic electrocoagulation probe has two electrodes 1, both of which are semi-cylindrical. The top of the electrode 1 is used for electrocoagulation, and the bottom is used for connection. The connection part is made into a sheet Easy to connect. There are holes on the outside of the electrode connecting part, which are respectively connected to both sides of the base through the connecting piece. Each probe can rotate 0°-180° around the connection point, and the rotation angle of the electrode around the connection point is set at 4 fixed points, each of which is 0° , 60°, 120° and 180°. There is a slideway at the bottom of the electrode connection part, the slideway is curved, and the connecting shaft 4 passes through the slideway 11 of the electrode connection part to form a pivot connection. Since the outer side of the electrode connection part is connected to the base 3, when the connection shaft is pulled to move up and down, the two electrodes will simultaneously rotate around the connection point. The control line 2 is installed on the connecting shaft 3, the control line is composed of a bayonet 21 and a steel wire 22, the bayonet 21 is clipped on the connecting shaft, the steel wire 22 is connected to the handle, and the opening and closing of the electrode is controlled by moving the remote hand control handle 6 up and down Angle, handle controls are insulated. The base is a hollow structure, and both the manipulation wire 2 and the electrocoagulation wire can pass through the inside of the base 3 . One end of the two electrocoagulation wires is respectively connected to two electrodes 1, and the other end is connected to the positive electrode. After electrification, two probes are used to conduct electrocoagulation to the inside of the trachea.

Example 3:

A bronchoscopic electrocoagulation probe as shown in Figure 4, the rest are the same as in embodiment 2, wherein the electrocoagulation probe also includes two connecting pieces 5, the top of the electrode connecting part has holes, and the two electrodes 1 are connected by the connecting piece And the base 3, the electrode rotates around the central support point. The bottom end of the electrode connection part is connected to the connecting piece, and the connecting pieces are connected to each other to form a rhombus, and the bayonet 22 of the manipulation wire 2 is clamped to the connecting piece.

Example 4:

A kind of electrocoagulation probe through bronchoscopic, all the other are the same as embodiment 2, the diameter of described two semicircular probes is 2mm, and length is 3mm, and the head end of probe is circular arc.

Example 5:

A bronchoscopic electrocoagulation probe. When in use, the handle 6 is used to control the manipulation line 2, so that the electrode 1 is first in a closed state so as to pass through the biopsy channel of the bronchoscope and protrude from the end of the bronchoscope. The electrocoagulation probe is connected to the The coagulation line and the control line 2 pass through the biopsy channel of the bronchoscope through the base 3, and pass through the opening of the bronchoscope. The coagulation line that passes through is connected to the positive pole of the electrocoagulation generator, and the control line 2 that is passed out is connected to the handle 6 for manipulation. During the operation, adjust the range of the handle 6 to 60°, 120°, and 180° according to the range of the cauterized part. The handle 6 drives the manipulation line 6 to stretch back and forth, and then the connecting piece 5 generates relative motion, so that the electrode 1 revolves around the connecting axis 4 Turn to the specified opening and closing angle, then sear. After the cauterization is completed, the handle 6 controls the manipulation wire 2, so that the electrode 1 is in a closed state again, so as to withdraw from the biopsy channel of the bronchoscope.

The preferred embodiments of the present invention have been specifically described above, but the present invention is not limited to the described embodiments, and those skilled in the art can also make various equivalents without violating the spirit of the present invention. Modifications or replacements, these equivalent modifications or replacements are all included within the scope defined by the claims of the present application.

Claims (2)

1. a kind of coagulation probe through bronchoscope, through the biopsy duct of bronchoscope, connects coagulation line, it is characterised in that Described coagulation probe includes two electrodes (1), and two electrodes are pivotally connected；Control wire (2) is also set up on electrode (1), is manipulated Line is made up of bayonet socket (21) and steel wire (22), and bayonet socket (21) controls two electrodes to rotate, steel wire (22) tail end connection joystick； Electrode (1) is fixed on pedestal, and pedestal (3) is hollow, and coagulation line passes through pedestal (3) endoporus, described coagulation line one with steel wire End connection positive pole, the other end are connected on two electrodes, and the connected mode of control wire and electrode is：Described bayonet socket (21) It is connected in the connecting shaft (4) of two electrodes, two electrode tail ends are equipped with slideway (11), and described connecting shaft is vertical along slideway Two mobile, described electrode extensions, are riveted on pedestal (3) both sides, two electrodes rotate around tie point；Or described electrode Tail end is connected with connection sheet (5), and two connection sheets (5) are pivotally connected, and pedestal (3), described bayonet socket are fixed in connecting shaft both ends (21) it is connected on the tie point of connection sheet；Two described electrodes (1) are semi-cylindrical.

2. a kind of coagulation probe through bronchoscope according to claim 1, it is characterised in that two described electrodes A diameter of 2mm, length 3mm.