CN212346662U

CN212346662U - Fixed-length suction ligation device

Info

Publication number: CN212346662U
Application number: CN202020267910.7U
Authority: CN
Inventors: 王强; 苏天阳
Original assignee: Henan Tuoren Medica Device Co ltd
Current assignee: Henan Tuoren Medica Device Co ltd
Priority date: 2020-03-06
Filing date: 2020-03-06
Publication date: 2021-01-15
Anticipated expiration: 2030-03-06

Abstract

The utility model discloses a inhaled ligation device of fixed length, include: the device comprises a handle, an infrared sensor for detecting the length of the hemorrhoid sucked into the ligation component, a negative pressure device for generating negative pressure in the ligation component so as to enable the front end of the ligation component to be sucked into the hemorrhoid, and a display; the infrared sensor is arranged at the front part of the inner cavity of the ligation component, a preset distance is arranged between the infrared sensor and the front end of the ligation component, the negative pressure device and the controller are arranged in the handle, and the display is arranged outside the handle; the infrared sensor, the negative pressure device and the display are in signal connection with the controller. When the haemorrhoids are sleeved and pricked, the negative pressure device is started, negative pressure is generated in the inner cavity tube by the negative pressure device, the haemorrhoids can be sucked, the length sucked into the haemorrhoids can be detected by the detection of the infrared sensor after the haemorrhoids are sucked, the infrared sensor transmits signals to the controller, and the controller transmits length information to the display for observation of an operator. The application can control the length of the hemorrhoid of the suction ligation assembly.

Description

Fixed-length suction ligation device

Technical Field

The utility model relates to the technical field of medical equipment, more specifically say, relate to a inspiratory loop ligature ware of fixed length.

Background

The common method for treating hemorrhoids adopts a ligation operation, and the principle is that a special rubber ring is sleeved and tied at the root or the base of an artery on the hemorrhoids, and the blood supply of the hemorrhoids is blocked by utilizing the elastic retraction force of the rubber ring, so that the hemorrhoids are necrotized, atrophied and shed, thereby achieving the purpose of healing; at present, the instruments for performing the ligation operation generally adopt a ligation device, which adsorbs hemorrhoids through vacuum and then sleeves the superior hemorrhoidal artery through elastic threads, so as to achieve the purpose of necrosis of the hemorrhoids.

The existing ligation device on the market adopts a hand gun type, and the ligation device needs to ensure that the long enough artery on the hemorrhoid is not too short after the elastic line is sheathed on the hemorrhoid in the using process, so that the short enough artery on the hemorrhoid can cause ineffectiveness, medical staff needs to judge that the hemorrhoid is inhaled long enough according to experience, and the experience requirement on the medical staff is very high.

In view of the above, how to control the length of the artery on the hemorrhoid by ligation is a problem to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a ligation device with fixed-length suction, which has a quantitative suction function to control the length of the hemorrhoid sucked into the ligation assembly.

In order to achieve the above object, the present invention provides the following technical solutions:

a fixed-length suction ligation device, comprising: the hemorrhoid suction device comprises a handle, an infrared sensor for detecting the length of the hemorrhoid sucked into the ligation component, a negative pressure device for generating negative pressure in the ligation component so as to enable the front end of the ligation component to be sucked into the hemorrhoid, and a display;

the infrared sensor is arranged at the front part of the inner cavity of the ligation component, a preset distance is arranged between the infrared sensor and the front end of the ligation component, the negative pressure device and the controller are arranged in the handle, and the display is arranged outside the handle;

the infrared sensor, the negative pressure device and the display are in signal connection with the controller.

Preferably, the infrared sensor includes an infrared detector for emitting infrared rays, an infrared receiver for receiving infrared rays, a radiation modulator for adjusting the intensity of the infrared rays emitted by the infrared detector, a signal processing system for processing the infrared rays received by the infrared receiver and sending the infrared rays received by the infrared receiver to the controller, and the signal processing system is in signal connection with the controller.

Preferably, the negative pressure device comprises an electric control device used for controlling the negative pressure device, and the electric control device is arranged in the handle.

Preferably, the pressure relief device is used for relieving the pressure in the ligation component and is arranged on the handle.

The utility model provides a pair of inspiratory ligation device of fixed length, include: the device comprises a handle, an infrared sensor for detecting the length of the hemorrhoid sucked into the ligation component, a negative pressure device for generating negative pressure in the ligation component so as to enable the front end of the ligation component to be sucked into the hemorrhoid, and a display;

When the haemorrhoids are sleeved and pricked, the negative pressure device is started, negative pressure is generated in the inner cavity tube by the negative pressure device, the haemorrhoids can be sucked, the length sucked into the haemorrhoids can be detected by the detection of the infrared sensor after the haemorrhoids are sucked, the infrared sensor transmits signals to the controller, and the controller transmits length information to the display for observation of an operator. The hemorrhoid treatment device has the quantitative suction function, and the length of the hemorrhoid of the suction ligation component is controlled.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is a front side view of a fixed length aspirating ligation device provided by the present invention;

FIG. 2 is a partial front view of a fixed-length suction ligation device according to the present invention;

FIG. 3 is a side perspective view of a fixed length aspirating ligation device provided by the present invention;

fig. 4 is a schematic view of a shearing mechanism provided by the present invention;

fig. 5 is an enlarged view of the shearing mechanism provided by the present invention;

fig. 6 is a schematic view of a wire rewinding mechanism provided in the present invention;

fig. 7 is an enlarged view of the take-up mechanism provided by the present invention.

In FIGS. 1-7:

1-shearing mechanism, 2-take-up mechanism, 3-infrared sensor, 4-elastic coil, 5-inner cavity tube, 6-pushing sleeve, 7-driving device, 8-driving rod, 9-trigger, 10-threading hole, 11-sleeve, 12-blade, 13-elastic sheet, 14-strip chute, 15-cross bar, 16-handle, 17-elastic line, 18-second gear and 19-driving motor.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The core of the utility model is to provide a fixed-length suction ligation device, which has the quantitative suction function and controls the length of the hemorrhoids sucked into the ligation component.

Referring to fig. 1 to 7, fig. 1 is a front side view of a fixed-length suction ligation device provided by the present invention; FIG. 2 is a partial front view of a fixed-length suction ligation device according to the present invention; FIG. 3 is a side perspective view of a fixed length aspirating ligation device provided by the present invention; fig. 4 is a schematic view of a shearing mechanism provided by the present invention; fig. 5 is an enlarged view of the shearing mechanism provided by the present invention; fig. 6 is a schematic view of a wire rewinding mechanism provided in the present invention; fig. 7 is an enlarged view of the take-up mechanism provided by the present invention.

A fixed-length suction ligation device, comprising: the device comprises a handle 16, an infrared sensor 3 for detecting the length of the hemorrhoids sucked into the ligation component, a negative pressure device for generating negative pressure in the ligation component so as to enable the front end of the ligation component to be sucked into the hemorrhoids and a display;

the infrared sensor 3 is arranged at the front part of the inner cavity of the ligation component, a preset distance is arranged between the infrared sensor 3 and the front end of the ligation component, the negative pressure device and the controller are arranged in the handle 16, and the display is arranged outside the handle 16;

the infrared sensor 3, the negative pressure device and the display are in signal connection with the controller.

It should be noted that the infrared sensor 3 is arranged in the front of the inner cavity of the ligation assembly, and the infrared sensor is arranged in the middle of the ligation assembly, so that a preset distance is arranged between the infrared sensor and the front end of the ligation assembly, and the preset distance is used for accommodating the inhaled hemorrhoid tissue.

The infrared sensor 3 is a sensor which uses infrared rays as a medium to complete a measurement function, the infrared rays are also called infrared rays, and the infrared sensor has the properties of reflection, refraction, scattering, interference, absorption and the like, and the infrared sensor 3 does not contact with a measured object during measurement and has no friction, and has the advantages of high sensitivity, quick response and the like. The length of the front end of the hemorrhoid suction ligation component can be calculated by utilizing the phase displacement generated by the back and forth of the high-frequency modulated infrared ray on the distance to be measured. The infrared sensor 33 is mainly composed of an infrared detector, an infrared receiver, a radiation modulator, a signal processing system, and the like. In order to facilitate replacement, the infrared sensor 3 is connected with a fixed contact arranged on the ligation component through a movable contact, so that the assembly, disassembly and replacement are convenient.

And the time Deltat of the outgoing beam degree is increased, so that the length D is obtained according to the D ═ C Deltat/2, wherein the length D represents the beam speed. The infrared detector is not limited by the interference of other light sources and the use environment, has the advantages of reliable work, strong anti-interference capability, high response speed, long service life and the like, and although infrared rays are invisible light, the emission frequency of the infrared detector is about 38kHz generally and the detection distance is shorter generally, so that the infrared detector is suitable for the design because the physical properties of linear propagation, reflection, refraction and the like of the infrared rays are similar to those of visible light.

When the haemorrhoids are sleeved and bound, the negative pressure device is started, negative pressure is generated in the inner cavity tube 5 by the negative pressure device, the haemorrhoids can be sucked, after the haemorrhoids are sucked, the sucked length of the haemorrhoids can be detected by the detection of the infrared sensor 3, the infrared sensor 3 transmits signals to the controller, and the controller transmits length information to the display for observation of an operator. The hemorrhoid treatment device has the quantitative suction function, and the length of the hemorrhoid of the suction ligation component is controlled.

On the basis of the above embodiment, as a further preferable mode, the infrared sensor 3 includes an infrared detector for emitting infrared rays, an infrared receiver for receiving infrared rays, a radiation modulator for adjusting intensity of infrared rays emitted from the infrared detector, and a signal processing system for processing infrared rays received by the infrared receiver and sending the infrared rays received by the infrared receiver to the controller, and the signal processing system is in signal connection with the controller. The intensity of the emitted infrared rays can be adjusted by adjusting the radiation modulator so as to adjust the intensity of the infrared rays received by the infrared receiver, and the device can be suitable for detecting hemorrhoids of various sizes, so that the infrared signal information received by the controller can be adjusted.

On the basis of the above embodiment, it is further preferable that an electric control device for controlling the negative pressure device is included, the electric control device is arranged in the handle 16, and the electric control device is in signal connection with the controller. The electric control device 5 can be a PLC, an integrated circuit or a single chip microcomputer. The single chip microcomputer can adopt MSP430G2332, and the controller can control the start of the electric control device to control the start and stop of the negative pressure device, so that the control is convenient.

On the basis of the above embodiment, it is further preferable that a pressure relief device for relieving the pressure in the ligation assembly is included, and the pressure relief device is arranged on the handle 16. The pressure relief assembly comprises a pressure relief key and an air leakage opening, the air leakage opening is communicated with a pipeline communicated with the ligation assembly, a spring used for propping the pressure relief key to block the air leakage opening is arranged inside the pressure relief key, and when the negative pressure device works, the maximum pressure generated by the negative pressure device is smaller than the force of the spring propping the pressure relief key to prevent the air leakage of the air leakage opening when the negative pressure device works. When pressure relief is needed, the pressure relief key is pressed down to open the air relief opening, and then pressure relief can be carried out. The pressure relief device is arranged, so that the subsequent hemorrhoids can be conveniently inhaled, and the operation process is simple and quick.

The ligation component comprises an inner cavity pipe 5, a pushing sleeve 6 and a driving device 7, wherein the pushing sleeve 6 is movably sleeved on the periphery of the inner cavity pipe 5, the driving device 7 is arranged in the handle 16, the driving device 7 can push the pushing sleeve 6 along the axial direction of the pushing sleeve 6, and the driving device 7 is in signal connection with the controller. The pushing sleeve 6 is sleeved on the inner cavity tube 5, and the pushing sleeve 6 can displace relative to the inner gun tube; in addition, one end of the inner cavity tube 5 and one end of the pushing sleeve 6, which are close to the hemorrhoids, are front ends, the driving device 7 drives the pushing sleeve 6 to slide towards the front ends, the elastic coil 4 which is wound at the front end of the inner cavity tube 5 is pushed onto the hemorrhoids, and the coiling and tying of the hemorrhoids are realized by tightening the elastic thread 17 through the take-up mechanism 2. When the pushing sleeve 6 pushes the elastic coil 4 to be sleeved on the hemorrhoid, the controller controls the wire winding mechanism 2 to synchronously tighten the elastic coil 4, so that the operation efficiency is improved, and the operation is more intelligent.

On the basis of the above embodiment, as a further preferred, the device comprises a take-up mechanism 2 for tightening the elastic coil 4 when the length sensor detects that the length sucked into the ligation assembly reaches the standard, and a shearing mechanism 1 for shearing the connection between the elastic coil 4 and the elastic thread 17 wound on the take-up mechanism 2 after the take-up mechanism 2 is tightened, wherein the take-up mechanism 2 is arranged on the ligation assembly, and the shearing mechanism 1 is arranged outside the handle 16; the take-up mechanism 2 is in signal connection with the controller.

Shearing mechanism 1 is including setting up the actuating lever 8 on handle 16 that can follow the activity of 6 length direction of promotion cover, the front end fixedly connected with of actuating lever 8 and the catch bar that sets up along 8 length direction of actuating lever, the front end of catch bar is equipped with the shearing part, the front end of elastic line 17 passes the shearing part and connects in elastic coil 4, be equipped with the driver that is used for driving 8 forward motion of actuating lever on the handle 16, when 8 forward motion of actuating lever, the front end of elastic line 17 is cuted to the shearing part, in order to cut off elastic coil 4 and elastic line 17 be connected.

It should be noted that the moving direction of the driving rod 8 and the pushing rod is the same as the length direction of the pushing sleeve 6, the driver is a trigger 9 hinged on the handle 16, one end of the trigger 9 is pulled by a finger to rotate the trigger 9 around a hinged point, and the other end of the trigger 9 drives the driving rod 8 to push the pushing rod.

The front end of the elastic thread 17 passes through the shearing part to be connected with the elastic coil 4, the elastic coil 4 and the elastic thread 17 are of an integrated structure, the elastic coil 4 is formed by knotting the end part of the elastic thread 17, and after the elastic thread 4 is sleeved on the haemorrhoids, the elastic thread 17 is pulled to tighten the elastic thread 4, so that the tightening operation is completed. The shearing portion shears the portion of the elastic thread 17 other than the elastic thread coil 4. Due to its simple mechanical structure, it may be more convenient to operate.

The display screen can be an external independent display screen or a display screen of the ligation device with fixed-length suction. The display screen can display the length of the inhaled hemorrhoids detected by the infrared sensor 3. The take-up mechanism 2 is arranged along the outer wall of the pushing sleeve 6 and is at least provided with one, the take-up mechanism 2 is installed on the pushing sleeve 6, and the shearing mechanism 11 is also fixed on the outer side of the pushing sleeve 6.

On the basis of the above embodiment, as a further preferred, the cutting part includes two blades 12 with their rear ends hinged to each other, the front cutting edges of the two blades 12 are opposite and both face the elastic thread 17, the blades 12 are disposed in the sleeve 11, the front end of the sleeve 11 is provided with a threading hole 10, and the front end of the elastic thread 17 passes through the threading hole 10 to be connected to the elastic coil 4.

It should be noted that two blades 12 are hinged on the side wall of the pushing sleeve 6, and are located at the front end of the pushing sleeve 6, and the elastic thread 17 passes through between the 2 blades 12, and the 2 blades 12 are driven by the driving part to rotate relatively around the hinge point to complete the shearing. The blade 12 is hinged in the sleeve 11 through a pin shaft, the front end of the sleeve 11 is provided with a threading hole 10 penetrating through the sleeve 11, and the elastic thread 17 enters the sleeve 11 along the take-up mechanism 2 and penetrates through the threading hole 10 to be wound at the front end of the inner cavity pipe 5. The structure of the embodiment is simple, the two blades 12 are arranged in the sleeve 11 to prevent the blades 12 from scratching tissues, and the two blades 12 are arranged to shear the elastic line 17 to make the shearing of the elastic line 17 more crisp and lower in cost.

On the basis of the above embodiment, as a further preferred, the sleeve 11 is a strip-shaped sleeve 11, the front ends of the push rod and the driving rod 8 are movably arranged in the strip-shaped sleeve 11, and the arrangement direction of the strip-shaped sleeve 11 is consistent with that of the driving rod 8.

It should be noted that the strip-shaped sleeve 11 is not fixed on the pushing sleeve 6, the pushing rod is pushed by the driving rod 8 to slide towards the front end of the sleeve 11 to push the blade 12 to rotate so as to realize shearing, one end of the driving rod 8 is inserted into the sleeve 11 and is in sliding fit, and the other end is connected with a driving mechanism for driving the driving rod 8 to slide back and forth along the sleeve 11; the driving mechanism is a trigger 9 hinged on the handle 16, one end of the trigger 9 is exposed out of the handle 16, the other end of the trigger 9 is pressed against the end part of the driving rod 8, and the driving rod 8 can be pushed to move towards the front end of the pushing sleeve 6 by pulling down the trigger 9 so as to realize shearing. The strip-shaped sleeve 11 is arranged, so that the connection between the driving rod 8 and the pushing rod can be stabilized, the moving directions of the pushing rod and the driving rod 8 can be limited, and the transmission is more stable.

On the basis of the above embodiment, as a further preferred, the pushing rod is provided with a bar-shaped sliding groove 14 which is consistent with the length direction of the pushing rod, a cross rod 15 is movably arranged in the bar-shaped sliding groove 14, and two ends of the cross rod 15 are connected to the inner wall of the bar-shaped sleeve 11.

It should be noted that, the quantity of spout can set up to one or more, when setting up to a plurality of, sets up a plurality of spouts along the length direction of pushing rod, and equal mobilizable horizontal pole 15 that is equipped with in every spout, the both ends of horizontal pole 15 respectively with the interior wall connection of sleeve 11, horizontal pole 15 and spout sliding fit, horizontal pole 15 can support the catch bar, horizontal pole 15 can stably restrict the motion of catch bar in bar spout 14, and prevent to drop.

In addition to the above-described embodiment, it is further preferable to include a return mechanism for returning the blade 12, the return mechanism being provided between the strip sleeve 11 and the rear end of the blade 12. It should be noted that the reset mechanism is used for driving the two blades 12 after the cutting is completed to reset, and the two blades 12 can be continuously used for the next cutting after the hemorrhoid is bound.

On the basis of the above embodiment, as a further preferred, the reset mechanism includes two elastic pieces 13, and the two elastic pieces 13 are respectively disposed between the rear ends of the blade backs of the two blades 12 and the strip-shaped sleeve 11. It should be noted that, the back of a knife blade of two blades 12 is contradicted with the inner wall of sleeve 11 through two shell fragments 13 respectively, specifically, during the cutting, shell fragment 13 is compressed, and after the cutting was accomplished, shell fragment 13 resumes elastic deformation, drives the cutting edge of 2 blades 12 and keeps away from mutually, this embodiment simple structure, the installation of being convenient for.

On the basis of the above embodiment, as a further preferable mode, the take-up mechanism 2 includes a take-up pulley for winding the elastic wire 17, a first gear is coaxially disposed on the take-up pulley, a driving motor 19 is disposed in the handle 16, a second gear 18 engaged with the first gear is mounted on an output shaft of the driving motor 19, the front end of the elastic wire 17 is connected with the elastic coil 4, the take-up pulley is rotatably disposed on the handle 16, and the driving motor 19 is in signal connection with the controller.

It should be noted that, the circumference side of tight line wheel is provided with the annular groove to hold elastic line 17, for better fixed elastic line 17, the bottom of slot is provided with the mounting hole, in order to fix elastic line 17 on tight line wheel, and follow tight line wheel and rotate.

The tightening wheel and the first gear are integrally arranged, one end of the elastic wire 17 is connected with the tightening wheel, the other end of the elastic wire is wound at the front end of the inner cavity tube 5 of the ligation device and is knotted to form an elastic coil 4, the elastic coil 4 formed by the elastic wire 17 is tied on the hemorrhoid by the action of the ligation device, and the tightening wheel is driven to rotate by the driving motor 19 to tighten the elastic wire 17 to realize that the hemorrhoid is tightened by the elastic wire 17; the motor is connected to the controller through the current sensor, and the controller controls the start and stop of the motor according to the received current signal to ensure the tensioning degree, and it should be noted that when the elastic wire 17 is tightened, the current of the motor changes correspondingly. The elastic coil 4 is tightened through gear transmission, and reliability is high.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The fixed-length suction ligation device provided by the utility model is introduced in detail. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims

1. A fixed-length suction ligation device is characterized by comprising: the hemorrhoid suction device comprises a handle (16), an infrared sensor (3) for detecting the length of the hemorrhoid sucked into the ligation component, a negative pressure device for generating negative pressure in the ligation component to enable the front end of the ligation component to be sucked into the hemorrhoid, and a display;

the infrared sensor (3) is arranged at the front part of the inner cavity of the ligation component, a preset distance is arranged between the infrared sensor (3) and the front end of the ligation component, the negative pressure device and the controller are arranged in the handle (16), and the display is arranged outside the handle (16);

the infrared sensor (3), the negative pressure device and the display are in signal connection with the controller.

2. The ligation device according to claim 1, wherein the infrared sensor (3) comprises an infrared detector for emitting infrared rays, an infrared receiver for receiving infrared rays, a radiation modulator for adjusting intensity of infrared rays emitted from the infrared detector, and a signal processing system for processing the infrared rays received by the infrared receiver and sending the infrared rays received by the infrared receiver to a controller, and the signal processing system is in signal connection with the controller.

3. A ligation device according to claim 2, wherein the device comprises an electrical control means for controlling the negative pressure means, the electrical control means being arranged in the handle (16).

4. A ligation device according to claim 3, wherein the device includes a pressure relief means for relieving pressure within the ligation assembly, the pressure relief means being provided on the handle (16).