CN111466860A

CN111466860A - Device for cleaning and demisting thoracoscope lens

Info

Publication number: CN111466860A
Application number: CN202010353401.0A
Authority: CN
Inventors: 张恒; 张春芳; 陈日; 吴东凯
Original assignee: Xiangya Hospital of Central South University
Current assignee: Xiangya Hospital of Central South University
Priority date: 2020-04-29
Filing date: 2020-04-29
Publication date: 2020-07-31
Anticipated expiration: 2040-04-29
Also published as: CN111466860B

Abstract

The invention provides a device for cleaning and demisting a thoracoscope lens, which comprises a body, a liquid supply pipe, a liquid return hose, a negative pressure hose, a switch assembly, an overflow valve and a nozzle. Through the matching of the switch assembly, the liquid return hose, the negative pressure hose and the overflow valve, when the button is not pressed, the heated physiological liquid provided by the liquid supply pipe heats the lens through the solution cavity group to keep the temperature of the heated physiological liquid to be the same as that of the lens in a human body; after the button is pressed, the liquid return hose is blocked, the negative pressure hose is unblocked, the overflow valve discharges physiological liquid, the physiological liquid is sprayed out by the nozzle to wash the lens, and the physiological liquid sprayed out by the nozzle and other matters such as fog and blood stain on the lens are sucked away by the arc-shaped suction port. The lens cleaning machine has the functions of heating and cleaning the lens, directly washing and directly heating the lens, and can effectively prevent secondary fogging; and the device also has a double-delay function of delaying the starting of spraying when starting the suction and delaying the stopping of the suction when closing the spraying. And a function of cleaning the mirror surface contamination by suction only.

Description

Device for cleaning and demisting thoracoscope lens

Technical Field

The invention relates to the technical field of auxiliary tools of surgical instruments, in particular to a device for cleaning and demisting a thoracoscope lens.

Background

Thoracoscopic Surgery is a short name for Video-Assisted Thoracic Surgery (VATS). The essence is that the operation is performed by using an endoscope (or called endoscopic surgery).

In the actual operation process of the thoracoscope, although the support of the bony thorax can provide a certain space for endoscopic operation, in the limited space, oil drops, blood drops, water mist and the like inevitably pollute the endoscopic lens in the process of separating the wound surface, the severed tissue and the blood vessel by applying high-energy instruments such as an electrotome, an ultrasonic knife, an energy platform and the like. In addition, blood stain flowing down from the incision part of the endoscope sleeve (Trocar) along the endoscope body can repeatedly pollute the endoscope lens, and the operation needs to be stopped continuously in the operation, and the lens is removed out of the thoracic cavity for cleaning. After the cleaned lens is placed back into the thoracic cavity, the lens is often fogged due to the difference between the room temperature (20-24 ℃) of the operating room and the temperature (37 ℃) of the thoracic cavity, and the lens needs to be wiped again or placed into the thoracic cavity again after being soaked in hot water for a long time and heated, which takes a long time. If the patient is polluted for many times, the operation time is greatly prolonged, the dosage of anesthetic is increased, the effort and physical strength of the operator are increased, and complications such as bleeding and injury in the operation can be caused by repeated organ traction, repeated operation and the like caused by rearrangement of the visual field.

Therefore, it is an important technical problem to be solved by those skilled in the art to provide an auxiliary device for a thoracoscope, which enables the thoracoscope to be cleaned without being withdrawn from the thoracic cavity (thereby reducing the time for which the operation is prolonged).

Disclosure of Invention

The object of the present invention consists in providing a device for cleaning and defogging of thoracoscopic lenses which allows to overcome the drawbacks of the prior art and which is more stable.

In a first aspect, a device for cleaning and defogging a thoracoscope lens is provided, comprising:

the body is sleeved on the body of the thoracoscope in an elastic and fastening manner or fastened on the body of the thoracoscope through at least one group of elastic buckles, and is provided with an inclined end part adapted to an inclined lens of the thoracoscope, the inner wall close to the end part is provided with at least one solution chamber group used for heating the lens, and the top end of the end part is provided with an arc-shaped suction port matched with the top end of the lens;

the liquid supply pipe is used for supplying heated physiological liquid to the solution cavity group;

the liquid return hose is communicated with the solution cavity group and is used for returning physiological liquid;

one end of the negative pressure hose is communicated with the arc-shaped suction port, and the other end of the negative pressure hose is connected with the negative pressure pipeline;

the switch assembly comprises a switch body, wherein a first pipe hole for penetrating through the liquid return hose and a second pipe hole for penetrating through the negative pressure hose are arranged on the switch body, a button hole which is vertical to and intersected with the two pipe holes, a button and a spring which are arranged in the button hole, and a cover plate for preventing the button from being separated are arranged on the switch body, the button is provided with a first pressing part for pressing the liquid return hose and a second pressing part for pressing the negative pressure hose, the spring is used for providing pretightening force for the button to enable the second pressing part to press the negative pressure hose so as to keep the negative pressure hose at the position normally closed, after the button is pressed, the liquid return hose is pressed by the first pressing part to be closed, and the second pressing part releases the negative pressure hose;

the overflow valve is communicated with the solution cavity group and overflows after the liquid return hose is pressed and closed by the first pressing part;

and the nozzle is communicated with the outlet of the overflow valve and is used for spraying the lens, and the spraying direction faces the arc-shaped suction port.

Preferably, the first pressing part and the second pressing part are arranged oppositely, and a plane where the first pipe hole and the second pipe hole are located is parallel to the moving direction of the button.

Preferably, the temperature control device further comprises a temperature sensor, the temperature sensor is arranged on the inner side of the end part of the body, clings to the lens and is used for transmitting the temperature of the lens to a temperature control system, and the temperature control system adjusts the temperature of the physiological liquid supplied to the liquid supply pipe according to the transmitted temperature value.

Preferably, the solution cavity group comprises at least two solution cavities which are uniformly distributed in the circumferential direction of the lens and are sequentially communicated, the liquid supply pipe is communicated with the first solution cavity, and the liquid return hose is communicated with the tail solution cavity.

Preferably, the solution cavity group comprises at least three solution cavities which are uniformly distributed in the circumferential direction of the lens, the solution cavities are long-strip-shaped, the length direction of the solution cavities is parallel to the length direction of the lens body, the liquid supply pipe is communicated with the head of the first solution cavity, the same end between the adjacent solution cavities is communicated, the liquid return hose is communicated with the head or the tail of the tail solution cavity, and a liquid flow path in the solution cavity group is zigzag.

Preferably, the physiological fluid is physiological saline.

Preferably, the overflow valve comprises a cylinder and an elastic sheet, wherein an overflow hole is formed in the cylinder, and the elastic sheet covers the overflow hole in an elastic compression mode.

Preferably, at least two groups of structures matched with the elastic sheets and the overflow holes are arranged in the cylinder body.

Preferably, the overflow valve and the nozzle are of an integrated structure.

In a second aspect, there is provided a device for thoracoscope lens cleaning and defogging, comprising:

the switch assembly comprises a switch body, wherein a first pipe hole used for penetrating through the liquid return hose, a second pipe hole used for penetrating through the negative pressure hose and a button hole intersected with the two pipe holes are formed in the switch body;

The advantageous effects of some of the inventions in the present application are roughly as follows.

A device for thoracoscope camera lens is clean and defogging that relates to, including body, feed tube, liquid return hose, negative pressure hose, switch module, overflow valve and nozzle. Through the matching of the switch assembly, the liquid return hose, the negative pressure hose and the overflow valve, when the button is not pressed, the heated physiological liquid provided by the liquid supply pipe heats the lens through the solution cavity group to keep the temperature of the heated physiological liquid to be the same as that of the lens in a human body; after the button is pressed, the liquid return hose is blocked, the negative pressure hose is unblocked, the overflow valve discharges physiological liquid, the physiological liquid is sprayed out by the nozzle to flush the lens, and the physiological liquid sprayed out by the nozzle and other matters such as fog and blood stain on the lens are sucked away by the arc-shaped suction port; when the button is not pressed in place, only the negative pressure hose can suck, but the liquid return hose is not blocked (only the suction function). The lens cleaning device has the functions of heating and cleaning the lens, also has the function of directly washing the lens (oil drops, blood drops, water mist and the like), directly heats the lens during washing, and can effectively prevent re-fogging; and the device also has a double-delay function of delaying the starting of spraying when starting the suction and delaying the stopping of the suction when closing the spraying.

Drawings

In order to illustrate the embodiments of the claimed invention or the technical solutions in the prior art more clearly, the drawings 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 some embodiments of some of the inventions, and that other drawings can be obtained by those skilled in the art without inventive effort.

FIG. 1 is a schematic perspective view of an alternative embodiment of a device for cleaning and defogging a thoracoscope lens provided herein.

FIG. 2 is a perspective view of yet another alternative embodiment of the device for thoracoscopic lens cleaning and defogging provided herein, illustrating another state of the switch assembly thereof.

Fig. 3 is a schematic perspective view of the device for cleaning and defogging a thoracoscope lens provided in fig. 1 after hiding the thoracoscope.

Fig. 4 is a schematic cross-sectional view of an alternative embodiment of the body of fig. 1-3 after deployment.

Fig. 5 is a cross-sectional schematic view of an alternative embodiment of the switch assembly of fig. 1-3.

Fig. 6 is a schematic perspective view of an alternative embodiment of the switch body in fig. 1 to 3 and 5.

Fig. 7 is a schematic perspective view of an alternative embodiment of the button shown in fig. 1 to 3 and 5.

Fig. 8 is a schematic perspective view of an alternative embodiment of the relief valve and nozzle of fig. 1-3.

Fig. 9 is a schematic partially cross-sectional view of an alternate embodiment of the relief valve of fig. 1-3 and 8.

Detailed Description

In order that those skilled in the art will better understand the technical solutions involved in the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings and specific examples. It should be noted that, in a non-conflicting manner, the embodiments and the specific features described in the embodiments in the present application may be combined in any suitable manner; in order to avoid unnecessary repetition, various possible combinations are not described in the present application, and should be considered as disclosed in the present application as long as they do not depart from the gist of the invention.

In a specific embodiment, referring to fig. 1 to 3, the device for cleaning and defogging a thoracoscope lens comprises a body 10, a liquid supply pipe 20, a liquid return hose 30, a negative pressure hose 40, a switch assembly 50, an overflow valve 60 and a nozzle 70. As shown in fig. 1 to 4, the body 10 is fitted over the body 01 of the thoracoscope, the body 10 has an inclined end 11 adapted to the inclined lens 02 of the thoracoscope, the inner wall 12 adjacent to the inclined end 11 has at least one solution chamber group 13 for heating the lens 02 (i.e. the solution chamber group 13 is attached to the lens 02 to heat the lens 02, but not on the outside), and the tip of the end 11 has an arc-shaped suction port 14 matching with the tip of the lens 02. In addition, the body 10 can also be fastened to the body 01 of the thoracoscope through at least one set of elastic fasteners, and referring to fig. 4, it is assumed that the body 10 is relatively flexible and flat, and two sides of each elastic fastener are respectively part of the elastic fasteners, and the elastic fasteners are placed on the body 01 and then wrap the body 01, and then the elastic fasteners are fastened, and the number of the elastic fasteners can be one, two or three or more. Alternatively, the fastening may be secured to the body 01 of the thoracoscope in other ways. Preferably, the body 10 is made of a material having a certain elasticity, and is fastened to the mirror body 01 in an elastic manner when being sleeved on the mirror body 01. In addition, the solution cavities 13 in the body 10 may be one, two, three or even more.

As shown in fig. 1 to 4, the liquid supply tube 20 is used to supply the heated physiological liquid to the solution chamber group 13. The heated physiological fluid in the fluid supply tube 20 is supplied from a physiological fluid temperature control system, which heats or cools the physiological fluid, maintains the temperature, and the like, based on the fed-back temperature or an input command (which can be adjusted based on data debugged in advance). Of course, it is not necessary to cool or maintain, but rather to heat, depending on most of the environment and the actual needs (operating room temperature).

As shown in fig. 1 to 4, the fluid returning hose 30 is communicated with the solution chamber group 13, and the physiological fluid (near the lens 02) in the solution chamber group 13 after heat dissipation flows back through the fluid returning hose 30. The physiological liquid in the liquid return hose 30 flows back to the physiological liquid temperature control system and can be recycled; in addition, a monitoring sensor may be provided in the fluid returning hose 30, and if a foreign substance (such as blood) is detected in the physiological fluid, the returned fluid is discharged through the drainage channel and does not enter the recycling channel.

As shown in fig. 1 to 4, one end of the negative pressure hose 40 communicates with the arc-shaped suction port 14, and the other end is connected to a negative pressure line. Note: the negative pressure line, which is a common device and to which the negative pressure hose 40 is connected, has been described, and can be practiced by those skilled in the art according to the common general knowledge, so that the negative pressure line is not illustrated.

As shown in fig. 1 and fig. 2, different arrangements of the switch assembly 50 are respectively illustrated, which are attached to the mirror body 01 or not attached to the mirror body 01. Both are feasible and can be adjusted according to the use environment and the preference of the user.

As shown in fig. 1 to 3 and 5, the switch assembly 50 includes a switch body 51, the switch body 51 is provided with a first pipe hole 511, a second pipe hole 512, and a button hole 513 perpendicular to and intersecting the two pipe holes (511, 512), the return hose 30 passes through the first pipe hole 511, the negative pressure hose 40 passes through the second pipe hole 512, the button hole 513 is provided with a button 52 and a spring 53, and the switch body 51 is provided with a cover plate 54 for preventing the button 52 from being detached. As shown in fig. 5 and 7, the push button 52 includes a first pressing portion 521 and a second pressing portion 522, the first pressing portion 521 is used to press the fluid return hose 30, and the second pressing portion 522 is used to press the negative pressure hose 40. As shown in fig. 5, the spring 53 is used to provide a pre-tightening force to the button 52, so that the second pressing portion 522 presses the negative pressure hose 40 to keep the negative pressure hose 40 normally closed, and when the button 52 is pressed, the liquid return hose 30 is pressed by the first pressing portion 521 to close, and the second pressing portion 522 releases the negative pressure hose 40.

As shown in fig. 1 to 4, the relief valve 60 communicates with the solution chamber group 13, and when the fluid return hose 30 is pressed by the first pressing portion 521, the pressed portion of the fluid return hose 30 is closed, and the relief valve 60 overflows. Referring to fig. 1 to 3, the nozzle 70 communicates with the outlet of the relief valve 60. The spray nozzle 70 is used for spraying the lens 02, and the spraying direction is directed toward the arc-shaped suction port 14.

In use, if the button 52 is pressed down, the negative pressure hose 40 is released, the arc-shaped suction port 14 starts to suck, the liquid return hose 30 is pressed, the pressed part of the liquid return hose 30 is closed, so that the pressure in the solution cavity group 13 is increased, the overflow valve 60 starts to overflow, the nozzle 70 sprays physiological liquid, the sprayed physiological liquid washes the mirror surface of the lens 02, the flushed physiological liquid flows towards the arc-shaped suction port 14, the physiological liquid enters the arc-shaped suction port 14 after washing the mirror surface of the lens 02 and is pumped away, namely, the function of heating the lens and the function of cleaning the mirror surface (oil drop, blood drop, water mist and the like) are provided, and when the nozzle 70 sprays the mirror surface, the lens is directly cleaned and directly heated, so that fogging can be effectively prevented. When the button 52 is released, the liquid return hose 30 is released to stop the overflow of the overflow valve 60 (i.e., the ejection of the nozzle 70 is stopped), the negative pressure hose 40 is compressed, and the compressed portion of the negative pressure hose 40 is closed to stop the suction of the arc suction port 14. In the process of pressing the button 52, the negative pressure hose 40 is immediately released and unblocked, the arc-shaped suction port 14 starts to suck immediately, and then the liquid return hose 30 is pressed tightly to be closed and the overflow valve 60 overflows to ensure that the nozzle 70 starts to spray after the button is pressed continuously; in the process of releasing the button 52, the liquid return hose 30 is immediately released to be unblocked so that the spray nozzle 70 can not spray any more, and the negative pressure hose 40 is pressed to be closed after the button 52 is in place so that the arc-shaped suction port 14 can not suck any more; namely, the double-delay function of delaying the starting of spraying when the suction is started and delaying the stopping of the suction when the spraying is closed is formed.

If the button 52 is pressed halfway, the fluid return hose 30 remains open, and the negative pressure hose 40 is also opened, so that the pressure in the solution chamber group 13 is not enough for the relief valve 60 to overflow, and the nozzle 70 does not eject the physiological fluid, i.e., suction is generated without spraying (the lens is heated or the constant temperature is maintained by the solution chamber group 13). In addition, half of the button 52 is pressed to draw the liquid return hose 30 and the negative pressure hose 40, so that the first pressing part 521 and the second pressing part 522 are pressed at different positions to prevent the hoses from being pressed to be dead (i.e. the hoses are pressed together and then are crushed so as not to restore to the original shape, the same applies below); or, when not in use, a shell sleeved on the switch assembly 50 is adopted, and the shell enables the button 52 to be pressed halfway, so that the first pressing part 521 and the second pressing part 522 are not pressed in place, and the liquid return hose 30 or the negative pressure hose 40 cannot be pressed to be dead; alternatively, the fluid return hose 30 and the negative pressure hose 40 may be made of a material having a high recovery capability after being pressed.

The solution chamber group 13 may be a cavity group opened in the body 10 (as described above and illustrated in fig. 4), and the cavity group is closer to one side of the inner wall 12 (rather than the outer side); alternatively, a set of parts having cavities may be formed and then adhered to the inner wall 12 adjacent to the end portion 11; or a combination of both.

The physiological solution can be physiological saline, can also be a solution consistent with the body fluid in the human body thoracic cavity, and can also be various suitable solutions without side effects or with small side effects on the human body.

In addition, in an alternative embodiment, the cover plate 54 may be disposed in the button hole 513, and the button hole 513 may be disposed at a corresponding mounting position. In yet another alternative embodiment, instead of the cover plate 54, a structure in which the button 52 is snapped into the button hole 513 may be adopted, and the button 52 can only move up and down but not back and forth after being snapped, and the simplest structure is: two sides of the button hole 513 are respectively provided with a sliding groove, two sides of the button 52 are respectively provided with a section of sliding rail, and after the button 52 is extruded into the button hole 513 from the side surface, the sliding rails are clamped into the sliding grooves, so that the button 52 can only move up and down (pressing is defined as downward movement); of course, various other suitable configurations may also be employed.

In a preferred embodiment, as shown in fig. 5 and 7, the first pressing part 521 and the second pressing part 522 are oppositely arranged, and the plane of the first pipe hole 511 and the second pipe hole 512 is parallel to the moving direction of the button 52. In a preferred embodiment, as shown in fig. 5-7, the force of the spring 53 is aligned with the first and

second apertures

511, 512, or may be non-aligned. In addition, the spring 53 may be replaced by another elastic member having the same or similar function.

In a preferred embodiment, as shown in fig. 3, a temperature sensor 80 is disposed on the inner side (i.e. on the inner wall 12) of the end portion 11 of the body 10, the temperature sensor 80 is closely attached to the lens 02 for detecting the temperature of the lens 02 and transmitting the temperature value to a temperature control system, and the temperature control system adjusts the temperature of the physiological fluid supplied to the fluid supply tube 20 according to the transmitted temperature value. Preferably, the temperature sensor 80 is located in close proximity to the arcuate suction opening 14. Preferably, as shown in fig. 1 to 3, the temperature sensor 80 is located in the middle of the arc-shaped suction port 14 and abuts against the mirror surface of the lens 02. In addition, when the manual switch assembly 50 is operated to spray, the data returned by the temperature sensor 80 is not used as a reference, and the temperature control system does not respond at this time, because the sprayed physiological fluid directly flows to the temperature sensor 80 during the operation of the spray mirror, so that the temperature measured by the temperature sensor 80 at this time is higher or lower (distorted) to some extent, and therefore the temperature at this time is not used as a reference and does not respond, and the temperature control system does not respond to the temperature value returned by the temperature sensor 80 after the spraying is stopped for 10 seconds or 15 seconds or 20 seconds.

In a preferred embodiment, as shown in fig. 4, the solution chamber group 13 includes seven solution chambers (131, 132, 133, 134, 135, 136, 137), the seven solution chambers are all in a strip shape, the length direction of the seven solution chambers is parallel to the length direction of the lens body 01, and the seven solution chambers are uniformly distributed in the circumferential direction of the lens 02, the liquid supply tube 20 is communicated with the head of the first solution chamber 131, the tail of the second solution chamber 132 is communicated with the tail of the first solution chamber 131, the head of the third solution chamber 133 is communicated with the head of the second solution chamber 132, the tail of the fourth solution chamber 134 is communicated with the tail of the third solution chamber 133, the head of the fifth solution chamber 135 is communicated with the head of the fourth solution chamber 134, the tail of the sixth solution chamber 136 is communicated with the tail of the fifth solution chamber 135, and the head of the tail solution chamber 137 is communicated with the head of the sixth solution chamber 136. As shown in fig. 4, the fluid returning hose 30 is connected to the head of the tail solution chamber 137 (mainly for easy processing and short distance), or connected to the tail of the tail solution chamber 137. As can be seen from fig. 4, in this embodiment, the path of the liquid flow in the solution chamber group 13 is zigzag (rectangular teeth, rack) (outer contour of teeth). In addition, other forms of flow paths are possible. The number of solution chambers in the solution chamber group 13 may be six, five, four, three, two, one, eight, nine, ten, or the like.

In a preferred embodiment, as shown in FIG. 8, the relief valve 60 and the nozzle 70 are of a one-piece construction. The structure is convenient for assembly and adjustment. Alternatively, the relief valve 60 and the nozzle 70 may be separate components.

In a preferred embodiment, as shown in fig. 9, the relief valve 60 comprises a cylinder 61, a baffle ring 65 is arranged in an inner cavity 64 of the cylinder 61, the baffle ring 65 is provided with a relief hole 63, the center of the relief hole 63 is not concentric with the baffle ring 65 (i.e. eccentric, so as to facilitate the installation of the elastic sheet 62), the elastic sheet 62 is attached to the baffle ring 65 (adhered or fastened by various suitable fasteners such as rivets, screws and the like) to cover the relief hole 63, and the elastic sheet 62 is covered on the relief hole 63 in an elastic pressing manner. Notably, the elastic piece 62 is located on one side from which the overflow direction flows out (generally, if the overflow effect is difficult to achieve or is not good on the other side); when the pressure is low, the physiological fluid in the inner cavity 64 cannot burst the elastic sheet 62, and the elastic sheet 62 is burst to overflow only when the pressure reaches or exceeds a set value, where the set value is based on the pressure value inside the fluid return hose 30 when the fluid return hose is blocked, and the set value may be 95% or 96%, 97%, and the like of the pressure value. That is, the overflow hole 63 is formed in the cylinder 61, and the overflow hole 63 is covered by the elastic sheet 62 in an elastically pressing manner. The structure can achieve the purpose of preventing backflow during overflow.

In a preferred embodiment, as shown in fig. 9, two overflow holes 63 are formed in the cylinder 61, and the two overflow holes 63 are covered by the elastic sheet 62 in an elastically pressed manner. That is, the cylinder 61 is provided with two sets of elastic pieces 62 and overflow holes 63. In addition, three or four groups or even more are also possible. The structure enables the function of preventing backflow during overflow to be more stable and reliable.

As shown in FIG. 1, the switch assembly 50 is attached to the body 01 of the thoracoscope, or may be directly affixed or fastened to the body 01. As shown in fig. 2, the switch assembly 50 is located away from the body 01 of the thoracoscope to reduce the effects of contact or vibration on the thoracoscope when the switch is operated, or to hang, or to fasten to a surgical bed, or to other equipment or locations, etc.

In one embodiment, as shown in fig. 4, an overflow valve hole 15, a suction channel 16, a liquid supply channel 17, and a liquid return channel 18 are formed in the body 10, the overflow valve hole 15 is used for installing an overflow valve 60 or an integrated overflow valve 60 and a nozzle 70, the suction channel 16 is communicated with the arc-shaped suction port 14, the other end of the suction channel is connected with the negative pressure hose 40, the liquid supply channel 17 is communicated with a first solution cavity 131 of the solution cavity set 13, the other end of the suction channel is connected with the liquid supply tube 20, and the liquid return channel 18 is communicated with a tail solution cavity 137 of the solution cavity set 13, and the other end of the suction. In this embodiment, the method for processing and manufacturing the body 10 and the structures thereon may be as follows: adopting a soft board with the same appearance, forming grooves and grooves corresponding to the cavities as shown in fig. 4 on the soft board, then covering a layer of film on the soft board for packaging (both gluing or thermoplastic packaging and the like), and integrally curling into a sleeve or installing elastic buckles at two sides; the second method comprises the following steps: the manufacturing method comprises the steps of adopting a corresponding die to generate a soft board with a groove (such as shown in figure 4, and the hatching in figure 4 is omitted), then gluing or thermoplastic packaging a layer of material with better heat conductivity on the soft board, and then integrally curling the soft board into a sleeve or installing elastic buckles on two sides. Wherein, after packaging, the original grooves on the flexible board form the pipelines (such as the suction channel 16, the liquid supply channel 17 and the liquid return channel 18), the holes (such as the overflow valve hole 15) and the chambers (such as the solution chambers of the solution chamber group 13).

In one embodiment, as shown in fig. 5 and 6, a partition portion 514 is provided in the button hole 513 and between the first pipe hole 511 and the second pipe hole 512, and when the first pressing portion 521 presses the return fluid hose 30, the partition portion 514 presses against the return fluid hose; when the second pressing portion 522 presses the negative pressure hose 40, the partition portion 514 abuts against the negative pressure hose to press the negative pressure hose. Of course, the aforementioned "first pressing portion 521 presses the fluid return hose 30" means that there must be a blocking surface for abutting against the fluid return hose 30, and the "second pressing portion 522 presses the fluid return hose 40" means that there must be a blocking surface for abutting against the fluid return hose 40, but these two blocking surfaces may be formed by a partition portion 514 as described above, or may be formed by various other structures, for example, two partitions are formed separately (this structure may be adopted completely when the distance is far away).

In a preferred embodiment, as shown in fig. 5 and 7, the portion of the first pressing portion 521 for pressing the fluid return hose 30 has an arc shape, so that the portion can stably press the fluid return hose 30 without lateral sliding. The portion of the second pressing portion 522 for pressing the negative pressure hose 40 has a certain arc shape, so that the negative pressure hose 40 can be stably pressed without lateral sliding. Preferably, the second pressing portion 522 has two grooves 524 perpendicular to the direction of the negative pressure hose 40, so that the pressing points of the second pressing portion 522 for pressing the negative pressure hose 40 are three, and the pressing effect is better; similarly, the first pressing portion 521 also has two corresponding grooves 523. Alternatively, there may be one or three or more recesses (523, 524). The lower portion of the button 52 also has a stop 525 that defines the position of the spring 52 and prevents lateral movement of the spring 52 from deflecting.

In a preferred embodiment, a device for cleaning and defogging a thoracoscope lens is provided, which is shown in fig. 1 to 4 and comprises a body 10, a liquid supply pipe 20, a liquid return hose 30, a negative pressure hose 40, a switch assembly 50, an overflow valve 60 and a nozzle 70. The body 10 is sleeved on the body 01 of the thoracoscope in an elastic fastening mode or fastened on the body 01 of the thoracoscope through at least one group of elastic buckles, the body 10 is provided with an inclined end part 11 matched with the inclined lens 02 of the thoracoscope, the inner wall 12 close to the end part 11 is provided with at least one solution cavity group 13 used for heating the lens 02 (namely the solution cavity group 13 is attached to the lens 02 and heats the lens 02 but not on the outer side), and the top end of the end part 11 is provided with an arc-shaped suction port 14 matched with the top end of the lens 02; the liquid supply pipe 20 is used for supplying heated physiological liquid to the solution cavity group 13, the liquid return hose 30 is communicated with the solution cavity group 13 for backflow of the physiological liquid, one end of the negative pressure hose 40 is communicated with the arc-shaped suction port 14, and the other end of the negative pressure hose is connected with a negative pressure pipeline; the switch assembly 50 comprises a switch body 51, the switch body 51 is provided with a first pipe hole 511 for passing through the liquid return hose 30, a second pipe hole 512 for passing through the negative pressure hose 40, and a button hole 513 intersecting the two pipe holes (511, 512), the button hole 513 is provided with a button 52 and an elastic member 53 (which can be a spring or other elastic parts capable of completing the functions), the elastic member 53 keeps the button 52 in a springing state, the button 52 acts on the negative pressure hose 40 and is normally closed, and acts on the liquid return hose 30 and is normally open; the overflow valve 60 is communicated with the solution cavity group 13, and overflows after the liquid return hose 30 is pressed and closed by the first pressing part 521; the nozzle 70 is communicated with the outlet of the overflow valve 60 for spraying the lens 02, and the spraying direction is toward the arc-shaped suction port 14.

The above description of the function or effect of each invention is intended to mean that it has the function or effect, and that it may have other functions or effects, and therefore should not be construed as unduly limiting the function or effect.

The above detailed description of an apparatus for thoracoscopic lens cleaning and defogging provided by the claimed invention. The principles and embodiments of the claimed invention have been described herein using specific examples, which are presented only to assist in understanding the method and its core concepts of the claimed invention. It should be noted that while the best modes for carrying out the claimed invention have been described in detail, those familiar with the art to which this invention relates will recognize various alternative designs and embodiments for practicing the claimed invention within the scope of the appended claims.

Claims

1. A device for thoracoscopic lens cleaning and defogging, comprising:

2. The device for cleaning and defogging the lens of a thoracoscope according to claim 1, wherein the first pressing portion and the second pressing portion are oppositely arranged, and the plane of the first tube hole and the plane of the second tube hole are parallel to the moving direction of the button.

3. The device as claimed in claim 1, further comprising a temperature sensor disposed inside the end of the body and closely attached to the lens for transmitting the temperature of the lens to a temperature control system for adjusting the temperature of the physiological fluid supplied to the fluid supply tube according to the transmitted temperature.

4. The device for cleaning and defogging the lens of a thoracoscope according to claim 1, wherein the solution chamber set comprises at least two solution chambers uniformly distributed around the circumference of the lens and sequentially communicated with each other, the liquid supply tube is communicated with the first solution chamber, and the liquid return hose is communicated with the tail solution chamber.

5. The device for cleaning and defogging the lens of a thoracoscope according to claim 1, wherein the solution chamber set comprises at least three solution chambers uniformly distributed in the circumferential direction of the lens, the solution chambers are elongated and have the length direction parallel to the length direction of the lens body, the liquid supply pipe is communicated with the head of the first solution chamber, the same end between the adjacent solution chambers is communicated, the liquid return hose is communicated with the head or the tail of the tail solution chamber, and the liquid flow path in the solution chamber set is zigzag.

6. The device for thoracoscopic lens cleaning and defogging as recited in claim 1, wherein said physiological fluid is a physiological saline solution.

7. The device for cleaning and defogging a thoracoscopic lens according to claim 1, wherein the overflow valve comprises a barrel body in which an overflow hole is formed and an elastic sheet which covers the overflow hole in an elastic compression manner.

8. The device as claimed in claim 1, wherein at least two sets of the elastic pieces are disposed in the barrel to cooperate with the overflow holes.

9. The device for thoracoscopic lens cleaning and defogging as recited in claim 1, wherein said overflow valve and said nozzle are of a unitary construction.

10. A device for thoracoscopic lens cleaning and defogging, comprising: