CN108185980A - A kind of saturating intestinal wall locator of laser and rectum low level tumor-localizing method - Google Patents

Abstract

The present invention provides a kind of saturating intestinal wall locator of laser and rectum low level tumor-localizing methods, including the saturating intestinal wall locator mirror body of laser and display control program, there is supporting point in one end on feeler lever, the other end has bracing ring, there is multiple lasers in handle or feeler lever, and there are Laser output mouth and camera in feeler lever forepart, there is prism at Laser output mouth, feeler lever forepart is embedded with lighting source, conducting wire one end connection display control program, and the other end is electrically connected with laser, lighting source and camera；10 20mm of Laser output mouth and camera spacing, camera is than Laser output mouth close to feeler lever front end face.The saturating intestinal wall locator of the laser makes tumour searching process be completed under visual environment, more fast；Laser output mouth is circular layout, and laparoscope is observed in parenterally any angle, there is the appearance of laser positioning point in the visual field, due to known to camera and Laser output mouth spacing, coordinate the cross hair on display, positioning accuracy can be accurate to ± 2mm, realize and precisely protect anus.

Description

A laser penetrating intestinal wall locator and a method for locating low rectal tumors

technical field

The invention belongs to the technical field of medical devices, and in particular relates to a laser penetrating intestinal wall locator and a method for locating low-position rectal tumors.

Background technique

The low rectal tumor is very close to the patient's anus, and the incision location is between the tumor and the anus. If the incision is too close to the tumor, it may be incompletely removed, and if the incision is too far away, it may damage the anal tissue and affect the function of the sphincter. Therefore, precise anus preservation is to preserve the complete anal tissue as much as possible under the premise of complete tumor resection, which is very important to ensure the quality of life of patients after surgery.

For routine laparoscopic resection of low rectal tumors, a doctor needs to probe into the patient's anus with his fingers, touch the tumor (the tumor grows on the inner side of the intestine), and use his fingers to push up the intestinal wall on the anal side of the tumor edge from the inside . The chief surgeon observes the protruding position on the outside of the intestinal tract through a laparoscope, and places a vascular clip as a mark, and the cutting position is based on this.

With this method, doctors who touch the tumor cannot directly observe it visually, and estimate the cutting position only by hand feeling, which is very imprecise. In order to ensure complete resection of the lesion, doctors usually choose a relatively conservative plan, resecting more parts of the intestinal tract, which may damage the anal tissue. To solve this problem, there is no suitable solution in clinical practice.

Contents of the invention

The object of the present invention is to overcome the above-mentioned defects of the prior art, and provide a laser penetrating intestinal wall locator, which is used for precise positioning of tumors under laparoscope during resection of low rectal tumors.

In order to achieve the above object, the technical scheme provided by the invention is as follows:

A laser penetrating intestinal wall locator, comprising a mirror body of the laser penetrating intestinal wall localizer and a display control system, the mirror body of the laser penetrating intestinal wall localizer includes a handle and a probe rod, the handle is connected with the probe rod, and the probe There is a support point at one end of the rod, and a support ring at the other end. Both the handle and the probe rod are hollow structures. There are multiple lasers inside the handle or the probe rod, and a laser light outlet is provided at the front of the probe rod. And the camera, the laser light outlet in the probe rod is equipped with a prism, the front part of the probe rod is embedded with a lighting source, one end of the wire is connected to the display control system, and the other end of the wire passes through the handle and the probe rod to connect with the laser and the lighting source respectively. Electrically connected to the camera;

The distance between the laser light exit and the camera is 10-20mm, and the distance between the camera and the front end of the probe rod is smaller than the distance between the laser light exit and the front end of the probe rod.

The display control system includes a microcomputer and a display, and the microcomputer and the display are electrically connected.

The laser is arranged in the handle, and an optical fiber is arranged between the laser and the laser light outlet.

There are multiple laser light outlets, which are evenly distributed in the circumferential direction on the outer surface of the probe rod. The laser light outlets are dot-shaped or linear, and the laser light outlets are single-circle or multi-circle. When there are multiple circles, the laser light outlets of adjacent circles are staggered.

The illumination light source is an LED light source, and the LED light source is 1-2.

The outer surface of the probe rod is provided with scales.

The outer surface of the probe rod is provided with a laser light source switch and an illumination light source switch, and the laser light source switch and the illumination light source switch are electrically connected to the wire.

The present invention also provides a method for locating low-position rectal tumors, using a laser penetrating intestinal wall locator in cooperation with a laparoscope, comprising the following steps:

Step 1) Use a sterile protective sheath on the probe rod coat of the laser penetrating intestinal wall locator lens body, apply lubricant on the outer surface of the sterile protective sheath, insert the laser penetrating intestinal wall locator lens body into the patient's anus, Push the locator forward and rotate at the same time to find the location of the lesion;

Step 2) When the lesion appears in the image, move and rotate the mirror body of the laser penetrating intestinal wall locator, so that the center of the cross mark on the display screen is aligned with the midpoint of the lower edge of the tumor;

Step 3) At this time, the laser is projected on the inner circumferential surface of the intestinal tract, and the laser positioning point on the outer surface of the intestinal wall is observed through the laparoscope. Since the distance between the laser light outlet and the camera is known, with the cross mark on the display, the The position of the positioning point fixes the titanium clip as a mark to realize positioning.

It also includes a one-time use of a sterile protective sheath on the outer surface of the probe rod before inserting the mirror body of the laser penetrating intestinal wall locator into the patient's anus, and applying lubricant to the outer surface of the sterile protective sheath.

The beneficial effects of the present invention are:

The laser penetrating intestinal wall locator provided by the present invention makes the process of finding tumors complete in a visible environment, which is faster; using laser as a positioning mark facilitates the surgeon to observe under the laparoscope; the circular arrangement of the laser outlet can ensure When the laparoscope is observed from any angle outside the intestinal tract, there are laser positioning points in the field of vision. Since the distance between the camera and the laser light outlet is known, the positioning accuracy can be accurate to ±2mm with the cross marks on the display; multiple rows of positioning light points The / line can be used as a ruler for the chief surgeon to estimate the reserved length of the incision to accurately locate the tumor location and perform incision to achieve precise anus preservation.

Further details will be described below in conjunction with the accompanying drawings.

Description of drawings

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

Figure 2 is a schematic diagram of the dotted arrangement of the laser light outlet;

Fig. 3 is a schematic diagram of a linear arrangement of laser light outlets.

In the figure: 1. wire; 2. handle; 3. laser light source switch; 4. lighting source switch; 5. sterile protective cover; 6. probe rod; 7. scale; 8. laser light outlet; 9. camera; 10 , Lighting source.

Detailed ways

Example 1:

This embodiment provides a laser penetrating intestinal wall positioner, including a laser penetrating intestinal wall positioner mirror body and a display control system, the laser penetrating bowel wall localizer mirror body includes a handle 2, a probe rod 6, and the handle 2 Connected with the probe rod 6, one end of the probe rod 6 is provided with a support point, and the other end is provided with a support ring, the handle 2 and the probe rod 6 are both hollow structures, and the handle 2 or the probe rod 6 are provided with multiple A laser, the front part of the probe rod 6 is provided with a laser light outlet 8 and a camera 9, a prism is installed in the laser light outlet 8 in the probe rod 6, an illumination light source 10 is embedded in the front part of the probe rod 6, and a wire 1 One end is connected to the display control system, and the other end of the wire 1 passes through the handle 2 and the probe rod 6 to be electrically connected to the laser, the lighting source 10 and the camera 9 respectively;

The distance between the laser light outlet 8 and the camera 9 is 10-20 mm, and the distance between the camera 9 and the front end of the probe rod 6 is smaller than the distance between the laser light outlet 8 and the front end of the probe rod 6 .

Working principle: The mirror body of the laser penetrating intestinal wall locator enters the patient's anus. Under the illumination of the illumination source 10, the doctor searches for the tumor location through the camera 9 and the display control part. The laser emitted by the laser is projected from the laser outlet 8 under the action of the prism For tumors in the intestine, since the distance between the camera and the laser outlet is known, the positioning accuracy can be adjusted to ±2 mm with the help of the cross marks on the monitor. The positioning point, fix the titanium clip at the position of the laser positioning point, as a mark, to achieve precise positioning.

Wherein, the upper front end of the probe rod 6 has a support point, and the rear end has a support ring, and the front and rear ends of the sterile protective cover 5 are respectively socketed on the support point and the support ring of the probe rod 6, so that A gap is formed between them to provide the object distance for the camera 9.

Use process:

a. Use wire 1 to connect the mirror body of the laser penetrating intestinal wall locator with the display control system, start the display control system, enter the software system, turn on the lighting source switch 4, and check whether the image display is normal;

b. Turn off the light source switch 4, and disinfect the mirror body of the laser penetrating intestinal wall locator according to the "Technical Specifications for Disinfection of Medical Institutions";

c. Open the sealed packaging of the sterile protective sheath 5, and socket the sterile protective sheath 5 outside the probe rod 6;

d. Apply liquid paraffin on the outer surface of the sterile protective sheath 5, and slowly insert the mirror body of the laser penetrating intestinal wall locator into the anus of the patient;

e. Push forward the mirror body of the laser penetrating intestinal wall locator and rotate slowly at the same time to find the location of the lesion. When the lesion appears in the image, slowly move and rotate the mirror body of the laser penetrating intestinal wall locator to make the cross mark on the display screen The center is aligned with the midpoint of the lower edge of the tumor (near the anus);

f. Turn on the switch of the laser light source, the light source will light up and project on the inner circumferential surface of the intestinal tract. At this time, the chief surgeon can observe the laser on the outer surface of the intestinal wall from the laparoscope. The doctor fixes the titanium clip at the laser positioning point and fixes the titanium clamp clip, as a marker;

g. After the positioning is completed, close the mirror body of the laser penetrating intestinal wall locator, withdraw slowly from the patient's anus, and remove the disposable sterile protective cover 5;

h. The chief surgeon can cut from the position marked by the titanium clip and disconnect the rectum.

There is a disposable sterile protective sheath 5 over the probe rod 6, which prevents the mirror body of the laser penetrating intestinal wall locator from contacting the human body, reduces the risk of infection caused by sterilization failure, and is easy to clean.

Example 2:

On the basis of Embodiment 1, this embodiment provides a laser penetrating intestinal wall positioner, the laser device is arranged in the handle 2 , and an optical fiber is arranged between the laser device and the laser light outlet 8 .

Due to the limited size of the probe rod 6, the number of lasers installed inside will be limited. Therefore, the lasers are installed on the handle 2 and transmitted through the optical fiber.

In this embodiment, there are multiple laser light outlets 8, which are evenly distributed in the circumferential direction on the outer surface of the probe rod 6. Multiple turns. When the laser light outlets 8 are linear and multi-turn, the laser light outlets 8 of adjacent circles are arranged in a staggered manner. The illumination light source 10 is an LED light source, and there are 1-2 LED light sources.

Wherein, the display control system includes a microcomputer and a display, both of which are electrically connected, and the microcomputer is equipped with software capable of realizing the functions of display, screenshot, reticle, video recording, and field of view brightness control.

As shown in FIG. 2 , the laser light outlet 8 is dot-shaped and provided with multiple circles; as shown in FIG. 3 , the laser light outlet 8 is linear and provided with multiple circles, and the laser light outlets 8 of adjacent circles are arranged staggered. The single-circle or multi-circle laser positioning spot/line can be used as a ruler for the chief surgeon to estimate the reserved length of the incision.

Example 3:

On the basis of Embodiment 1, this embodiment provides a laser penetrating intestinal wall locator, and the outer surface of the probe rod 6 is provided with a scale 7 . The outer surface of the probe rod 6 is provided with a laser light source switch 3 and an illumination light source switch 4 , and the laser light source switch 3 and the illumination light source switch 4 are electrically connected to the wire 1 . The scale 7 can make the doctor judge the insertion depth.

As shown in FIG. 1 , the probe rod 6 is at the front end of the mirror body of the laser penetrating intestinal wall locator, and the handle 2 is at the rear end. The side of the head of the probe rod 6 is sequentially equipped with an illumination light source 10, a camera 9, and a laser light outlet 8. The laser light outlet 8 is dot-shaped, distributed in a ring shape on the outer surface of the probe rod 6, the laser light outlet 8 is a single row, the distance between the center of the laser light outlet 8 and the center of the camera 9 is a fixed value, and the outer surface of the probe rod 6 is engraved with a scale 7 , The handle 2 is provided with an illumination source 10 and a laser light source switch 3, and the brightness of the illumination source 10 is adjustable. The tail of the handle 2 is connected with the display control part through the wire 1 .

Wherein, the camera 9 can be arranged on the front end of the probe rod 6 . The probe rod 6 and the handle 2 are integrated, and are made of stainless steel; the lighting source 10 can also use other lighting means with lower calorific value except that the LED cold light source can be used as the lighting source. The cross-sectional shapes of the probe rod 6 and the sterile protective sheath 5 can also be non-circular in addition to the circle used in FIG. 1 .

Example 4:

This embodiment provides a method for locating low rectal tumors, using a laser penetrating intestinal wall locator in cooperation with a laparoscope, including the following steps:

Step 1) Disposably use a sterile protective sheath 5 on the probe rod coat of the lens body of the laser penetrating intestinal wall locator, apply lubricant on the outer surface of the sterile protective sheath 5, and insert the scope body of the laser penetrating intestinal wall locator into the anus of the patient , advance the locator forward and rotate at the same time, to find the location of the lesion;

Step 2) When the lesion appears in the image, move and rotate the mirror body of the laser penetrating intestinal wall locator, so that the center of the cross mark on the display screen is aligned with the midpoint of the lower edge of the tumor;

Step 3) At this time, the laser is projected on the inner circumferential surface of the intestinal tract, and the laser positioning point that appears on the outer surface of the intestinal wall is observed through the laparoscope. Since the distance between the laser light outlet 8 and the camera 9 is known, with the cross mark on the display, Fix the titanium clip at the position of the laser positioning point as a mark to realize positioning.

It also includes using a sterile protective sheath 5 on the outer surface of the probe rod 6 before inserting the mirror body of the laser penetrating intestinal wall locator into the anus of the patient, and applying a lubricant on the outer surface of the aseptic protective sheath 5 .

The parts not specifically described in this embodiment belong to common knowledge and technologies in the technical field, and will not be described in detail here.

The above examples are only illustrations of the present invention, and do not constitute a limitation to the protection scope of the present invention. All designs that are the same as or similar to the present invention fall within the protection scope of the present invention.

Claims (9)

1. a kind of saturating intestinal wall locator of laser, it is characterised in that：Including the saturating intestinal wall locator mirror body of laser and display control program, The saturating intestinal wall locator mirror body of laser includes handle（2）, feeler lever（6）, the handle（2）With feeler lever（6）Connection, the feeler lever （6）Upper one end is equipped with supporting point, and the other end is equipped with bracing ring, the handle（2）With feeler lever（6）It is hollow structure, the hand Handle（2）Or feeler lever（6）It is interior to be equipped with multiple lasers, the feeler lever（6）Forepart is equipped with Laser output mouth（8）And camera（9）, institute State feeler lever（6）Interior Laser output mouth（8）It is interior that prism, the feeler lever are housed（6）Forepart is embedded with lighting source（10）, conducting wire（1） One end connects display control program, conducting wire（1）The other end pierces into handle（2）And feeler lever（6）Afterwards respectively with laser, lighting source （10）And camera（9）Electrical connection；

The Laser output mouth（8）And camera（9）Spacing 10-20mm, the camera（9）With feeler lever（6）Between front end face Away from less than Laser output mouth（8）With feeler lever（6）The spacing of front end face.

2. a kind of saturating intestinal wall locator of laser according to claim 1, it is characterised in that：The display control program includes Microcomputer and display, the microcomputer and display electrical connection.

3. a kind of saturating intestinal wall locator of laser according to claim 1, it is characterised in that：The laser is set on handle （2）It is interior, the laser and Laser output mouth（8）Between be equipped with optical fiber.

4. a kind of saturating intestinal wall locator of laser according to claim 1, it is characterised in that：The Laser output mouth（8）For It is multiple, in feeler lever（6）Outer surface is circumferentially uniformly distributed, the Laser output mouth（8）To be dotted or linear, the Laser output mouth （8）For single-turn or multi-turn, the Laser output mouth（8）During for linear and multi-turn, the Laser output mouth of adjacent turn（8）Be staggered cloth It puts.

5. a kind of saturating intestinal wall locator of laser according to claim 1, it is characterised in that：The lighting source（10）For LED light source, the LED light source are 1-2.

6. a kind of saturating intestinal wall locator of laser according to claim 1, it is characterised in that：The feeler lever（6）Outer surface is set There is scale（7）.

7. a kind of saturating intestinal wall locator of laser according to claim 1, it is characterised in that：The feeler lever（6）Outer surface is set There is laser light source switch（3）It is switched with lighting source（4）, the laser light source switch（3）It is switched with lighting source（4）With conducting wire （1）Electrical connection.

8. a kind of rectum low level tumor-localizing method is matched using the saturating intestinal wall locator of laser described in claim 1 with laparoscope It closes, which is characterized in that include the following steps：

Step 1）After the saturating intestinal wall locator mirror body of laser and display control program electrical connection, by the saturating intestinal wall locator mirror body of laser Patient anus are inserted into, locator is pushed ahead and rotates simultaneously, find lesions position；

Step 2）After lesion occurs in the picture, the mobile and saturating intestinal wall locator mirror body of rotary laser makes in display picture Cross hair center and tumour lower edge in point alignment；

Step 3）At this point, the laser that laser projection on enteron aisle inner peripheral surface, is shown by laparoscopic visualization to intestinal wall outer surface Anchor point, due to Laser output mouth（8）And camera（9）Spacing is it is known that coordinate the cross hair on display, in laser positioning Titanium folder is fixed in point position, as label, realizes positioning.

9. a kind of rectum low level tumor-localizing method according to claim 8, it is characterised in that：It further includes the saturating intestines of laser Before wall locator mirror body is inserted into patient anus, in feeler lever（6）Sterility protection set is disposably used on housing（5）, and in sterile guarantor Sheath（5）Smear lubricant in outer surface.