CN218279611U

CN218279611U - Anti-fogging laparoscope

Info

Publication number: CN218279611U
Application number: CN202220008032.6U
Authority: CN
Inventors: 龙陈艳
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-01-05
Filing date: 2022-01-05
Publication date: 2023-01-13
Anticipated expiration: 2032-01-05

Abstract

The utility model discloses an anti-fogging laparoscope, which comprises a mirror rod, an optical lens and a handle, wherein the handle is arranged at one end of the mirror rod, the optical lens is arranged at the other end of the mirror rod, an optical fiber is arranged in the mirror rod in a penetrating way, one end of the optical fiber is connected with the optical lens, at least two leading-in channels are arranged in the mirror rod, and one leading-in channel is used for leading in heated protective gas; the optical lens is connected with one outward end of the lens rod through a connecting cylinder, a cavity is arranged in the side wall of the connecting cylinder, at least two access ports are arranged at one end of the connecting cylinder connected with the lens rod, the two access ports are respectively communicated with corresponding guide-in channels, and the inner wall of the connecting cylinder) is communicated with the cavity through two air passing holes; the two ends of the connecting cylinder are provided with pole pieces which are communicated with each other, and the pole pieces at the two ends are respectively connected with the optical lens and the contact points on the mirror rod. The laparoscope can prevent the lens from being fogged, and can also prevent water vapor in the air from condensing on the laparoscope rod to form condensed water.

Description

Anti-fogging laparoscope

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to a peritoneoscope of preventing fogging.

Background

The laparoscope is a medical apparatus with a miniature camera, and image information shot by a lens of the laparoscope is transmitted to a signal processing system through an optical fiber by using a digital camera technology and is displayed on a display so as to assist a doctor in operating a surgical instrument, examining the inside of an abdominal cavity and the like.

Because the operating room environment is lower than the body temperature of a human body, when the laparoscope lens is inserted into the abdominal cavity of a patient, moisture in the human body can be condensed on the relatively cold lens due to the large temperature difference between the inside and the outside of the abdominal cavity, and water mist is formed. And the images shot by the lens are covered and influenced, so that the shot images output by the laparoscope lens have defects and influence on the operation or examination process. In view of the above situation, chinese patent CN 201621304356.5-antifog laparoscope discloses a laparoscope with heating function, in which a thermostatic heating device is disposed, so that the laparoscope can control the heating resistance wires to work according to the temperature at the front end of the laparoscope, and therefore, the front end of the laparoscope can maintain the temperature similar to the human body, and fog which interferes with the sight line is not easily generated. In the patent, the lens is heated by directly using an electric heating wire, so that the endoscope in the lens is easy to deform due to the concentrated heating surface, and the shooting effect of the whole lens is very influenced.

Disclosure of Invention

The utility model discloses aim at solving one of the above-mentioned technical problem at least, provide an anti-fogging's peritoneoscope, can prevent outside the camera lens hazing.

In order to realize the purpose, the utility model discloses a technical scheme be:

an anti-fogging laparoscope comprises a mirror rod, an optical lens and a handle, wherein the handle is arranged at one end of the mirror rod, the optical lens is arranged at the other end of the mirror rod, an optical fiber penetrates through the mirror rod, one end of the optical fiber is connected with the optical lens, at least two leading-in channels are arranged in the mirror rod, and one leading-in channel is used for leading in heated protective gas; the optical lens is connected with one outward end of the lens rod through a connecting cylinder, a cavity is arranged in the side wall of the connecting cylinder, at least two access ports are arranged at one end of the connecting cylinder connected with the lens rod, the two access ports are respectively communicated with corresponding leading-in channels, and the inner wall of the connecting cylinder) is communicated with the cavity through two air passing holes; the two ends of the connecting cylinder are both provided with pole pieces which are communicated with each other, and the pole pieces at the two ends are respectively connected with the optical lens and the contact points on the lens rod.

Furthermore, the outer wall of the connecting cylinder is provided with a spraying hole, and the spraying hole is communicated with the cavity.

Further, the protective gas is carbon dioxide.

Furthermore, the handle is provided with a plurality of connectors which are correspondingly communicated with the leading-in channels respectively, and at least one connector is provided with an electric heating wire.

Further, a control panel is arranged on the handle and electrically connected with the electric heating wire.

Furthermore, a temperature sensor is arranged in the connecting cylinder, and the temperature sensor is electrically connected with the control panel through the matching of the pole piece and the contact point on the mirror rod.

Further, be provided with sunken step on the terminal surface of connecting cylinder and the mirror pole one end of being connected, be provided with the annular on sunken step's the terminal surface, the access mouth all sets up on the bottom of annular, be provided with the sealing washer on sunken step's the side.

Furthermore, an internal thread is arranged on the inner wall of one end, connected with the mirror rod, of the connecting cylinder, and an external thread matched with the internal thread is arranged at one end, outwards, of the mirror rod.

Furthermore, an installation position is arranged at one end of the connecting cylinder, which is far away from the sunken step, the optical lens is plugged and installed in the installation position, and the pole piece is arranged on the installation position; and a sealing ring is arranged between the mounting position and the optical lens.

Furthermore, the end face of the connecting cylinder is provided with a cold light source on the periphery of the mounting position, and the cold light source is electrically connected with the pole piece.

The beneficial effects of the utility model are that:

this prevent peritoneoscope of hazing is provided with leading-in passageway in the mirror pole, utilizes the leading-in protective gas after the heating of leading-in passageway, utilizes protective gas heating optical lens and mirror pole, can effectively improve the bulk temperature of whole peritoneoscope, avoids steam to condense on optical lens, influences the operation. The heating of the optical lens can be effectively alleviated by adopting a protective gas heating mode, and the deformation of the optical lens is reduced. In addition, the optical lens and the mirror rod are connected in a detachable manner through the structural design of the connecting cylinder; meanwhile, the mirror rod is convenient to connect with other operation parts through the connecting cylinder, so that multiple functions are realized, and the use convenience is improved.

Drawings

The following detailed description of embodiments of the invention is provided in connection with the accompanying drawings, in which:

fig. 1 is a first schematic structural diagram of an embodiment of the present invention;

fig. 2 is a schematic structural diagram ii according to an embodiment of the present invention;

fig. 3 is a cross-sectional view of an embodiment of the present invention;

fig. 4 is a partial cross-sectional view of an embodiment of the present invention.

In the figure: mirror rod 10, optical fiber 11, introduction channel 12, optical lens 20, handle 30, connecting joint 31, control panel 33, connecting cylinder 40, cavity 41, pole piece 42, ejection hole 43, temperature sensor 44, concave step 45, annular groove 46, sealing ring 47, mounting position 48, sealing ring 49, access port 4a and cold light source 50

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.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or there can be intervening components, and when a component is referred to as being "disposed in the middle," it is not just disposed in the middle, so long as it is not disposed at both ends, but rather is within the scope of the middle. The terms "vertical," "horizontal," "left," "right," and the like are used herein for purposes of illustration only.

Referring to fig. 1 to 4, the present application provides an anti-fogging laparoscope, which includes a scope rod 10, an optical lens 20 and a handle 30, wherein the handle 30 is disposed at one end of the scope rod 10, the optical lens 20 is disposed at the other end of the scope rod 10, an optical fiber 11 is disposed in the scope rod 10, one end of the optical fiber 11 is connected to the optical lens 20, at least two introduction channels 12 are disposed in the scope rod 10, and one of the introduction channels 12 is used for introducing heated shielding gas; the optical lens 20 is connected with the outward end of the mirror rod 10 through a connecting cylinder 40, a cavity 41 is arranged in the side wall of the connecting cylinder 40, at least two access ports 4a are arranged at the end, connected with the mirror rod 10, of the connecting cylinder 40, the two access ports 4a are respectively communicated with the corresponding guide-in channels 12, and the inner wall of the connecting cylinder 40 is communicated with the cavity 41 through two air passing holes; the two ends of the connecting cylinder 40 are both provided with a pole piece 42 communicated with each other, and the pole pieces 42 at the two ends are respectively connected with the optical lens 20 and the contact points on the mirror rod 10. In addition, in the present application, the mirror rod 10 is provided with traces for connecting contacts to supply power to the optical lens 20.

In the laparoscope, the structure formed by the handle 30 and the rod 10 is generally a universal structure, which can be connected to the optical lens 20 or can be connected to the operation ends of the operation forceps, the separation forceps, the suction forceps, etc., and the introduction channel 12 can be filled with air or can be provided with an operation rope, and the operation rope is used to drive the operation forceps and the separation forceps; in more specialized fields, the introduction channel 12 can be communicated with external negative pressure equipment, and the suction forceps are driven to move by negative pressure to realize negative pressure suction. While in the present application the connecting cylinder 40 is mainly used to connect and fix the optical lens 20, in fact, in some modified embodiments, the connecting cylinder 40 may also be connected to other detecting components or operating components, and the connecting cylinder 40 is only used for connection. The specific structure of the connecting cylinder 40 also needs to be modified accordingly, and the detailed description of the present application is omitted.

Furthermore, in practical use, during laparoscopic surgery, protective gas needs to be injected into the abdominal cavity to establish an artificial pneumoperitoneum, so that the peritoneal wall is separated from the visceral organs, the gap between the abdominal cavity and the visceral organs is enlarged, the surgery is facilitated, and the visceral organs are prevented from being damaged when the trocar is punctured into the abdominal cavity. For this purpose, in one embodiment of the present application, the outer wall of the connecting cylinder 40 is provided with a spouting hole 43, and the spouting hole 43 communicates with the cavity 41. Although carbon dioxide can leak outwards from the fistula during the operation, in order to ensure the stability of the pneumoperitoneum space, the structural design of the embodiment enables the sterilized carbon dioxide to be supplemented when the whole laparoscope shoots and irradiates the lesion area inside the patient, so that the stability of the air pressure of the whole pneumoperitoneum is maintained, and the operation space of the abdominal wall of the patient during the operation is ensured. Further, the shielding gas in the above embodiments is carbon dioxide. In some modified embodiments, the introducing channel 12 is communicated with a structure filled with pure water, so that carbon dioxide can be introduced into the pure water to well wet the carbon dioxide, and the water shortage of focal tissues is avoided when the negative pressure of the carbon dioxide is discharged outwards.

Referring to fig. 3, in one embodiment of the present application, the handle 30 is provided with a plurality of connectors 31 respectively corresponding to each of the introducing passages 12, and at least one of the connectors 31 is provided with an electric heating wire 32. In the present case, the introduction channel 12 is preferably provided with two, and correspondingly the connection fitting 31 is also provided with two, one for the introduction of carbon dioxide and the other for the return line for carbon dioxide.

Further, in a modified embodiment, in order to better control the heating temperature of the electric heating wire 32, a control panel 33 is provided on the handle 30, and the control panel 33 is electrically connected with the electric heating wire 32. The control panel 33 may be a conventional button control panel or a touch screen control panel, which is a conventional technology, and the detailed principle is not described in detail in this application.

In the above embodiment, since the mirror rod 10 and the optical lens 20 are heated by carbon dioxide, the mirror rod 10 will absorb part of the heat, so it is difficult to ensure the heating temperature of the optical lens 20, and in order to better detect the heating temperature of the area of the optical lens 20, in a modified embodiment of the present application, a temperature sensor 44 is disposed in the connecting cylinder 40, and the temperature sensor 44 is electrically connected to the control panel 33 through the matching of the pole piece 42 and the contact point on the mirror rod 10.

With further reference to fig. 3 and 4, in the present application, in order to better ensure the connection between the connecting cylinder 40 and the mirror rod 10 to be stable and secure the air tightness, a recessed step 45 is provided on the end surface of the end of the connecting cylinder 40 connected to the mirror rod 10, an annular groove 46 is provided on the end surface of the recessed step 45, the access port 4a is provided on the bottom of the annular groove 46, and a sealing ring 47 is provided on the side surface of the recessed step 45. In practical use, after the connecting cylinder 40 is firmly connected with the mirror rod 10, the annular groove 46 forms a closed channel with the end face of the mirror rod 10, and the port of the introduction channel 12 is tightly communicated with the annular groove 46, so that carbon dioxide flows out from the introduction channel 12, part of the carbon dioxide flows into the cavity 41 along the annular groove 46, and part of the carbon dioxide flows along the annular groove 46 and flows into the other introduction channel 12, so as to realize recovery. The carbon dioxide flowing into the cavity 41 is partially supplied into the abdominal cavity of the patient through the ejection holes 43, and the other part of the carbon dioxide is ejected through the air passing holes and enters the inner ring of the connecting cylinder 40 to directly heat the whole optical lens 20, so that the phenomenon that the temperature of the optical lens 20 is lower relative to the abdominal wall of the human body to generate water mist is avoided. And meanwhile, carbon dioxide is adopted for heating, so that the whole connecting cylinder 40 is heated more stably and uniformly, and the deformation caused by centralized heating of the traditional electric heating wire is avoided. In addition, through design connecting cylinder 40 in this application, can realize supplementing and heating optical lens 20 in the transport of carbon dioxide, realize killing two birds with one stone.

It should be added that in the present application, two air passing holes are provided, which are respectively located on two sides of the inner wall of the connecting cylinder 40, and the two introducing channels 12 are also respectively located on two sides of the optical fiber 11 on the mirror rod 10, so that when one of the introducing channels 12 is supplied with carbon dioxide, the other one can provide negative pressure to suck carbon dioxide, thereby realizing circulation. Meanwhile, the arrangement of the relative positions of the two air passing holes can enable the carbon dioxide entering the cavity 41 to be simultaneously sprayed out through the spraying holes 43 and also can be reflowed through the air passing holes near the leading-in channel 12 for providing the negative pressure. In some modified embodiments, the chamber 41 is divided into two independent parts, and the two independent parts are respectively connected to the inner barrel of the connecting cylinder 40 through the air passing holes, so that the normal flow of the whole carbon dioxide can be ensured. In the same way, in the actual use process, the ring groove 46 is also divided into two half-ring structures, and meanwhile, each half-ring is internally provided with one access port 4a, so that each access port 4a is correspondingly connected with only one introduction channel 12.

With further reference to fig. 3 and 4, in order to better connect the connecting cylinder 40 to the mirror shaft 10 in the present application, an inner thread is provided on the inner wall of the end of the connecting cylinder 40 connected to the mirror shaft 10, and an outer thread matching the inner thread is provided on the outward end of the mirror shaft 10. In fact, one end of the mirror rod 10 screwed with the connecting cylinder 40 is of a stepped cylinder structure, the introducing channel 12 is arranged on the end face of the stepped cylinder, and the external thread is arranged on the outer wall of the small-end cylinder, so that when the mirror rod 10 is screwed with the connecting cylinder 40, the introducing channel 12 is accurately butted with the annular groove 46.

With further reference to fig. 4, an installation position 48 is provided on an end of the connecting cylinder 40 away from the recessed step 45, the optical lens 20 is installed in the installation position 48 in a sealing manner, and the pole piece 42 is provided on the installation position 48; a sealing ring 49 is arranged between the mounting position 48 and the optical lens 20. In the present application, the optical lens 20 is an integrated lens structure, which integrates a camera and various lens structures. And the sealing ring 49 may adopt a rubber or silicone structure, which improves the installation stability of the whole optical lens 20. In practice, the optical lens 20 may be fixedly mounted directly on one end of the connecting cylinder 40. Furthermore, a cold light source 50 is mounted on the end surface of the connecting cylinder 40 at the periphery of the mounting position 48, and the cold light source 50 is electrically connected with the pole piece 42.

It should be added that the connecting cylinder 40 in the present application has the structure of a cavity 41, for which purpose the connecting cylinder 40 is actually composed of the structure of an inner cylinder and an outer cylinder, and is obtained by connecting through a ring body; this facilitates the manufacture of the entire connector barrel 40 construction.

The anti-fogging laparoscope is provided with the guide channel 12 in the endoscope rod 10, heated protective gas is guided through the guide channel 12, and the optical lens 20 is heated by the protective gas, so that the overall temperature of the whole laparoscope can be effectively improved, and the phenomenon that water vapor condenses on the optical lens 20 and the endoscope rod 10 to affect the operation is avoided. By adopting the protective gas heating method, the heating of the optical lens 20 can be effectively alleviated, and the deformation of the optical lens 20 can be reduced. In addition, the optical lens 20 and the mirror rod 10 are detachably connected through the structural design of the connecting cylinder 40; meanwhile, the mirror rod 10 can be conveniently connected with other operation parts through the connecting cylinder 40, so that multiple functions are realized, and the use convenience is improved.

The above embodiments are only used for illustrating the technical solutions of the present invention and are not limited thereto, and any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered by the scope of the technical solutions of the present invention.

Claims

1. An anti-fogging laparoscope comprises a mirror rod, an optical lens and a handle, wherein the handle is arranged at one end of the mirror rod, the optical lens is arranged at the other end of the mirror rod, an optical fiber penetrates through the mirror rod, and one end of the optical fiber is connected with the optical lens; the optical lens is connected with one outward end of the lens rod through a connecting cylinder, a cavity is arranged in the side wall of the connecting cylinder, at least two access ports are arranged at one end of the connecting cylinder connected with the lens rod, the two access ports are respectively communicated with corresponding guide-in channels, and the inner wall of the connecting cylinder) is communicated with the cavity through two air passing holes; the two ends of the connecting cylinder are provided with pole pieces which are communicated with each other, and the pole pieces at the two ends are respectively connected with the optical lens and the contact points on the mirror rod.

2. The anti-fogging laparoscope of claim 1, wherein the connecting tube has ejection holes in its outer wall, said ejection holes communicating with the cavity.

3. The anti-fogging laparoscope according to claim 1, characterised in that the protective gas is carbon dioxide.

4. The anti-fogging laparoscope as claimed in claim 1, wherein said handle has a plurality of connectors respectively connected to each of said inlet channels, and at least one of said connectors has an electric heating wire.

5. The laparoscope as claimed in claim 4, wherein the handle is provided with a control panel, and the control panel is electrically connected to the electric heating wire.

6. The anti-fogging laparoscope of claim 5, wherein a temperature sensor is provided in the connecting cylinder, and the temperature sensor is electrically connected to the control panel through the engagement of the pole piece with the contact on the mirror shaft.

7. The anti-fogging laparoscope according to any one of claims 1-6, wherein a recessed step is provided on the end surface of the end of the connecting cylinder connected to the scope rod, an annular groove is provided on the end surface of the recessed step, the access ports are all provided on the bottom of the annular groove, and a sealing ring is provided on the side surface of the recessed step.

8. The anti-fogging laparoscope as claimed in claim 7, wherein the connecting tube and the rod are connected to each other by an internal thread on the inner wall of the connecting tube, and an external thread matching the internal thread is provided on the outward end of the rod.

9. The anti-fogging laparoscope according to claim 7, wherein an end of the connecting cylinder remote from the recessed step is provided with a mounting location, the optical lens is plugged and mounted in the mounting location, and the mounting location is provided with the pole piece; and a sealing ring is arranged between the mounting position and the optical lens.

10. The anti-fogging laparoscope of claim 7 wherein the end face of the connector barrel is fitted with a cold light source at the periphery of the mounting site, said cold light source being electrically connected to the pole piece.