CN218075237U - Medical fiber scope protection device, medical fiber scope protection system and fiber scope system - Google Patents

Abstract

The utility model provides a medical fiberoptic scope protection device, medical fiberoptic scope protection system, fiberoptic scope system belongs to medical fiberoptic scope protection instrument. Medical optical fiber mirror protection device includes that optical fiber mirror fixed knot constructs and displacement adjustment structure, adjusts optical fiber mirror fixed knot structure and displacement adjustment structure and sets up to the relative position adjustable on the first direction, can match the pipe class apparatus use of different length, realizes the accurate fine setting of minim. The adjustable optical fiber scope protection structure is arranged in the medical optical fiber scope protection equipment to protect the insertion part, the adjustable optical fiber scope protection structure is arranged to be a structure with adjustable length, the medical optical fiber scope protection equipment can realize wider coarse adjustment, and the medical optical fiber scope protection system can be matched with pipe instruments with more length specifications for use.

Description

Medical fiberscope protection device, medical fiberscope protection system and fiberscope system

Technical Field

The utility model relates to a medical fiberoptic scope protection instrument especially relates to a medical fiberoptic scope protection device, medical fiberoptic scope protection system, fiberoptic scope system.

Background

In many invasive medical operations, a tube-like instrument needs to be placed in a patient body to establish an operation channel, so that the medical instrument can perform operation at a position corresponding to a focus and the operation safety can be improved. The position of the head end of the tube instrument is determined according to the position of a focus and the type of an operation, and the accuracy of the position directly influences the quality of the operation. In some interventional medical procedures, a physician needs to acquire real-time image information of the surgical site to successfully complete the procedure and improve the safety of the procedure.

The endoscope has an imaging function, and currently, the visualization technology of the endoscope is generally used for positioning the tubular instruments and acquiring real-time image information of a surgical site. The fiber scope is used as one of endoscopes, has better flexibility and convenience, and is a better choice for positioning tube instruments and acquiring real-time image information of a surgical site. The fiber mirror comprises a flexible insertion part, the head end of the insertion part is provided with a lens for imaging, and the head end of the insertion part can be inserted into the body of a patient.

The insertion part of the fiber mirror has the characteristics of slender, soft and easy bending, when a tube instrument is implanted in a clinical operation, the instrument is usually required to be swung in real time according to the operation body position to adjust the operation intervention angle so as to reach the expected focus position, and the slender, soft and long fiber mirror inevitably moves or bends to a certain extent in the process, so that the insertion part of the fiber mirror cannot be effectively fixed, the lens at the head end part is easy to axially retract or protrude from the head end of a catheter, the imaging visual field is influenced, the visual field angle is deviated, and the acquired image information is inaccurate; in order to solve the problems, the insertion part and the pipe instruments are fixed by adopting the fiberscope protection device, but the pipe instruments on the market are of various types and different in length, and the conventional fiberscope protection device can only be matched with the pipe instruments with specific length specifications, so that the fiberscope protection device cannot be compatible with the pipe instruments with different lengths on the market.

In addition, in order to reserve a hand holding space and assemble, disassemble and adjust the allowance, the length of the inserting part of the fiberscope is larger than that of the pipe instrument used in cooperation, so that one section of the inserting part of the fiberscope can be exposed at the tail end of the pipe instrument when the fiberscope is used in combination, and the slender inserting part of the fiberscope is easily broken or damaged under the condition, thereby affecting the imaging effect.

Taking urinary calculus operation as an example, there are two important means for treating kidney stones with diameters larger than 2cm at present, namely percutaneous nephrolithotomy and ureteroscope lithotripsy, and the safety of the two operations can be improved by means of a fiberscope. Among them in the percutaneous nephroscope lithotripsy, accurate, establish percutaneous nephroscope operation passageway safely is the key link, and superfine fiber mirror can establish the operation passageway more safely, accurately, fast, realizes visual puncture, reduces the probability of bleeding, damage. Ureteroscope access sheaths are generally used as tube instruments in ureteroscope lithotripsy to avoid operation complications, such as damages, stenosis, perforation and the like of the urethra and the ureter, caused by frequently entering and exiting medical instruments to patients during operation; the key step of ureteroscope lithotripsy is to put the ureteroscope channel sheath into place, and the whole monitoring sheath placing process can be realized by using the ultra-fine fiber mirror to be matched with the ureteroscope channel sheath in the step, so that the ureteroscope channel sheath can smoothly pass through the urethra and safely reach the upper section of the ureter, and a ureteroscope lithotripsy operation channel is effectively established. However, in percutaneous nephrolithotomy and ureteroscope lithotomy, the defects that the fiberscope protection device cannot be compatible with the tube instruments with different length specifications exist, and the part of the insertion part externally arranged on the tube instrument is easy to break or damage exist.

SUMMERY OF THE UTILITY MODEL

The utility model provides a medical fiberoptic scope protection device, medical fiberoptic scope protection system, fiberoptic scope system solve the defect of the unable compatible pipe class apparatus of different length specifications of fiberoptic scope protection device.

A medical fiberscope protection device for fixing an insertion portion of a fiberscope to a tube instrument, comprising:

the optical fiber mirror fixing structure is used for connecting the insertion part and the tube instrument and comprises a first optical fiber mirror penetrating channel extending along a first direction;

the displacement adjusting structure comprises a second optical fiber mirror penetrating channel which is coaxial with the first optical fiber mirror penetrating channel; the displacement adjusting structure is arranged to be capable of moving to any position along a preset path relative to the optical fiber mirror fixing structure and then locking and unlocking with the optical fiber mirror fixing structure; the preset path extends along the first direction.

Optionally, the optical fiber mirror fixing structure and the displacement adjusting structure are inserted in the first direction, and the optical fiber mirror fixing structure and the displacement adjusting structure are slidably connected in the first direction after being unlocked.

Optionally, the medical optical fiber scope protection device further comprises a locking piece, and the displacement adjusting structure and the optical fiber scope fixing structure are locked or unlocked through the locking piece;

the optical fiber mirror fixing structure is inserted in the displacement adjusting structure, the side face of the displacement adjusting structure is provided with a locking hole in threaded connection with the locking piece, and the locking piece abuts against the optical fiber mirror fixing structure to lock the optical fiber mirror fixing structure and the displacement adjusting structure.

Optionally, the displacement adjusting structure includes a first fiberscope sleeve and a sliding sleeve that are detachably connected, and the sliding sleeve is sleeved on the fiberscope fixing structure; the displacement adjusting structure is locked and unlocked through the sliding sleeve and the optical fiber mirror fixing structure.

Optionally, the first fiberscope bushing includes a sliding sleeve connection hole, a first through hole and a second through hole, which are sequentially arranged along the first direction;

the sliding sleeve connecting hole is a threaded hole;

the first through hole is used for the insertion of the fiber mirror fixing structure;

the second through hole is used for guiding the inserting part, the second through hole comprises a guide part used for connecting the first through hole, the aperture of the guide part is gradually increased from the narrow end to the thick end of the guide part, and the narrow end is connected with the first through hole;

the sliding sleeve comprises a locking section and a connecting section, the locking section is detachably connected with the optical fiber mirror fixing structure, and the connecting section is in threaded connection with the first optical fiber mirror sleeve;

in the radial direction of the sliding sleeve, the locking section protrudes out of the connecting section and forms a first limiting surface.

Optionally, the fiber mirror fixing structure includes:

the optical fiber mirror fixing structure is locked and unlocked with the displacement adjusting structure through the second optical fiber mirror sleeve;

a fiberscope holder for holding the insertion portion by being partially deformed against the second fiberscope sleeve, and for connecting the tube-like instrument.

Optionally, the second fiberscope casing includes a third through hole for the fiberscope to pass through;

the second optical fiber mirror sleeve comprises a displacement compensation part, and the optical fiber mirror fixing structure is locked and unlocked with the displacement adjusting structure through the displacement compensation part;

the second fiber mirror sleeve further comprises a connecting part, and the positions of the connecting part and the fiber mirror fixing part in the first direction can be adjusted, so that the fiber mirror fixing part bears the extrusion force of the connecting part and is locally deformed to clamp the insertion part, and the deformed position of the fiber mirror fixing part releases the insertion part after the pressure of the connecting part disappears;

the connecting part comprises an inner ring and an outer ring, the optical fiber fixing piece is inserted between the inner ring and the outer ring, and the inner ring is inserted in an inner cavity of the optical fiber fixing piece;

in the radial direction of the second optical fiber scope sleeve, the connecting part protrudes out of the displacement compensation part to form a second limiting surface for limiting the displacement adjusting structure;

a limiting piece is arranged at one end, far away from the connecting part, of the displacement compensation part, and the limiting piece protrudes out of the displacement compensation part in the radial direction of the second optical fiber mirror sleeve to form a third limiting surface for limiting the displacement adjusting structure;

the limiting piece is in threaded connection with the displacement compensation portion.

Optionally, the optical fiber mirror fixing member includes a fixing base and a flexible fixing member; the positions of the fixed seat and the second optical fiber scope sleeve in the first direction can be axially adjusted to compress or release the flexible fixed part, and the flexible fixed part is used for contracting in the aperture after being axially extruded to clamp and fix the insertion part;

the flexible fixing piece is arranged in the fixing seat, or arranged in the second optical fiber mirror sleeve, or clamped between the end face of the fixing seat and the end face of the second optical fiber mirror sleeve.

Optionally, the fixing seat is in threaded connection with the second fiber lens sleeve;

one of the fixed seat and the second optical fiber mirror sleeve is provided with a limiting protrusion, the other one of the fixed seat and the second optical fiber mirror sleeve is provided with a limiting groove, the limiting protrusion is used for limiting the side surface, far away from the displacement adjusting structure, of the limiting groove, and the length of the limiting protrusion is smaller than that of the limiting groove in the first direction;

the fixing seat is provided with an inner cavity, the flexible fixing piece is arranged in the inner cavity, and the inner ring of the second optical fiber scope sleeve is inserted in the inner cavity and used for compressing or releasing the flexible fixing piece;

the aperture of the compressed flexible fixing piece is less than 0.8mm.

Optionally, the aperture of the first optical fiber mirror through channel is equal to that of the second optical fiber mirror through channel, and the aperture is 1-2.5mm;

in the first direction, the relative position of the optical fiber mirror fixing structure and the displacement adjusting structure is adjusted by less than or equal to 20mm.

A medical fiberscope protection system comprising:

a medical fiberoptic scope protection device according to any of the preceding claims;

the medical optical fiber mirror protection device is used for connecting the medical optical fiber mirror protection device and an eyepiece part of an optical fiber mirror, the medical optical fiber mirror protection device comprises an adjustable protection structure, the adjustable protection structure comprises an adjustable protection channel which is sleeved on the insertion part, and the length of the adjustable protection structure can be adjusted to stretch or shorten the length of the adjustable protection channel;

the maximum adjustment quantity of the adjustable protection structure is larger than the maximum stroke of the displacement adjustment structure relative to the movement of the optical fiber mirror fixing structure.

Optionally, the adjustable protection structure is an elastic structure, the tensile deformation amount of the adjustable protection structure is at least 1 time of the natural length of the adjustable protection structure, and the compressive deformation amount of the adjustable protection structure is at least 0.5 time of the natural length of the adjustable protection structure.

Optionally, the medical fiberscope protection device further includes:

the first fixing structure is used for detachably connecting the first end of the adjustable protection structure to the medical fiberscope protection device;

and the second fixing structure is used for detachably connecting the second end of the adjustable protection structure to the eyepiece part.

A fiber optic mirror system comprising:

a tube-like instrument;

the optical fiber mirror comprises an insertion part and an eyepiece part, wherein the insertion part is used for acquiring image information and transmitting the image information to the eyepiece part;

a medical fiberscope protection system as defined in any of the preceding claims.

The utility model discloses following beneficial effect has at least:

first, among the medical fiber mirror protection system, the length control scope of medical fiber mirror protection equipment is greater than medical fiber mirror protection device's length control scope, medical fiber mirror protection equipment can realize the coarse adjustment, have higher compatibility to pipe class apparatus, medical fiber mirror protection device can realize meticulous regulation, both combine to use, can realize that the head end camera lens of fiber mirror can both stably flush with pipe class apparatus head end when different visual operations, guarantee the broad and clear in field of vision, and simultaneously, medical fiber mirror protection system can match the pipe class apparatus of more different length models and use.

Second, among the medical fiber mirror protection device, adjust the relative position that first fiber mirror passed the head end of passageway and second fiber mirror and pass the distance between the tail end of passageway through adjusting displacement adjustment structure and fiber mirror fixed knot structure, when the longer pipe class apparatus of cooperation was used, the distance between the head end that passes the passageway with first fiber mirror and the tail end that the second fiber mirror passed the passageway was adjusted for down, when the shorter pipe class apparatus of cooperation was used, the distance between the head end that passes the passageway with first fiber mirror and the tail end that the second fiber mirror passed the passageway was adjusted for up, thereby medical fiber mirror protection device can cooperate the pipe class apparatus of different length to use.

Thirdly, in the medical optical fiber scope protection device, in a preset adjusting range, the relative positions of the displacement adjusting device and the optical fiber scope fixing structure can be adjusted at will, and locking is carried out at any relative position, so that the length of the medical optical fiber scope protection device can be accurately adjusted in the adjusting range.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, 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 description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive labor.

Fig. 1 is a sectional view showing a medical fiberscope protecting apparatus according to an embodiment of the present invention;

fig. 2 is an exploded view of a medical fiberscope protective device according to an embodiment of the present invention;

fig. 3 is a schematic cross-sectional view of a medical fiberscope protection apparatus according to an embodiment of the present invention;

fig. 4 is a schematic cross-sectional view of a medical fiberscope protective apparatus according to another embodiment of the present invention;

fig. 5 is a cross-sectional view of a medical fiberscope protection system according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a fiber mirror system according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a fiber mirror system according to another embodiment of the present invention.

Description of reference numerals:

100. a tube-like instrument;

200. a medical fiberscope protection device;

300. medical fiberoptic scope protection equipment;

400. an insertion portion;

500. an eyepiece section;

600. a medical fiberoptic scope protection system;

1. a fiber optic mirror fixing structure;

11. the first fiber mirror passes through the channel;

12. a second fiberscope sleeve;

121. a displacement compensation unit;

122. a connecting portion;

1221. an inner ring;

1222. an outer ring;

123. a third through hole;

124. a second limiting surface;

125. a limiting member;

126. a third limiting surface;

127. a limiting groove;

13. a fiberscope mount;

131. a fixed seat;

1311. an inner cavity;

1312. a limiting bulge;

132. a flexible mount;

2. a displacement adjustment structure;

21. the second fiber mirror passes through the channel;

22. a first fiberscope sleeve;

221. a first through hole;

222. a second through hole;

2221. a guide part;

223. a sliding sleeve connecting hole;

23. a sliding sleeve;

231. a locking hole;

232. a locking section;

233. a connection section;

234. a first limiting surface;

3. a locking member;

4. an adjustable protection structure;

41. an adjustable protection channel;

42. an elastic portion;

5. a first fixed structure;

6. a second fixed structure;

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 efforts all belong to the protection scope of the present invention.

The terms "first," "second," "third," "fourth," and the like (if any) in the description and claims of the present invention and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein. Moreover, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The technical solution of the present invention will be described in detail with specific examples. These several specific embodiments may be combined with each other below, and details of the same or similar concepts or processes may not be repeated in some embodiments.

Reference is made to fig. 1-2, and 5-7 for understanding, wherein fig. 1 and 2 illustrate the construction of a medical fiberscope protection device 200, and fig. 5-7 relate to the use of the medical fiberscope protection device 200. The embodiment of the utility model provides a medical fiberscope protection device 200 for fix the inserted part 400 of fiberscope on pipe class apparatus 100. The tube-like instrument 100 is a medical instrument product that contains an instrument channel capable of receiving a lumen-like structure through which the fiberscope insert 400 extends.

The medical fiberscope protection device 200 comprises a fiberscope fixing structure 1 and a displacement adjusting structure 2. The fiberscope fixing structure 1 is used for connecting the insertion portion 400 and the tube-like instrument 100, and the fiberscope fixing structure 1 includes a first fiberscope passing channel 11 extending in a first direction for the insertion portion 400 to pass through. The displacement adjusting structure 2 includes a second fiberscope passing channel 21 coaxially disposed with the first fiberscope passing channel 11, through which the insertion portion 400 also passes; the displacement adjusting structure 2 is set to be capable of moving to any position along a preset path relative to the optical fiber mirror fixing structure 1 and then locking and unlocking with the optical fiber mirror fixing structure 1; the preset path extends in a first direction.

Guiding and protecting the insertion part 400 by the first and second fiberscope passing passages 11 and 21 such that the insertion part 400 extends in a first direction; adjust the relative position through adjusting displacement adjustment structure 2 and fiber mirror fixed knot structure 1 and adjust the first fiber mirror and pass the distance between the head end of passageway 11 and the tail end that the second fiber mirror passed passageway 21, when the cooperation is longer pipe class apparatus 100 uses, the distance between the tail end that the head end that passes passageway 11 and the second fiber mirror with first fiber mirror passes passageway 21 is transferred and is reduced, when the cooperation is shorter pipe class apparatus 100 uses, the distance between the tail end that passes passageway 21 with first fiber mirror passes the head end of passageway 11 and the second fiber mirror is transferred greatly, thereby medical fiber mirror protection device 200 can cooperate the pipe class apparatus 100 of different length to use. In the preset adjusting range, the relative positions of the displacement adjusting device and the optical fiber scope fixing structure 1 can be adjusted at will, and locking is carried out at any relative position, so that the length of the medical optical fiber scope protecting device 200 can be accurately adjusted within the adjusting range.

In the embodiment shown in fig. 1 and 2, the first fiber optic mirror has an aperture of 1-2.5mm, such as 1mm, 1.8mm, or 2.5mm, through the channel 11. In the first direction, the relative position of the fiber mirror fixing structure 1 and the displacement adjusting structure 2 is adjusted by an amount less than or equal to 20mm, that is, the stroke generated by the movement of the displacement adjusting structure 2 relative to the fiber mirror fixing structure 1 along the preset path is less than or equal to 20mm.

In the embodiment shown in fig. 1 and 2, the optical fiber mirror fixing structure 1 and the displacement adjusting structure 2 are inserted in the first direction, the optical fiber mirror fixing structure 1 and the displacement adjusting structure 2 are connected in a sliding manner in the first direction after being unlocked, and at the moment, the optical fiber mirror fixing structure 1 and the displacement adjusting structure 2 can guide each other, so that the first optical fiber mirror can penetrate through the channel 11 and the second optical fiber mirror can penetrate through the coaxiality of the channel 21, and the bending risk of the insertion portion 400 is further reduced. In other embodiments, as an alternative, the fiber mirror fixing structure 1 and the displacement adjusting structure 2 may be connected by a method other than plugging, and besides a direct connection method, the two may also be indirectly connected by some linear motion control mechanisms, and the adjustment method of the two may be a manual adjustment as in the embodiments shown in fig. 1 and fig. 2, or an electric adjustment method.

In the embodiment shown in fig. 1 and 2, the medical fiberscope protection device 200 further includes a locking member 3, and the displacement adjusting structure 2 and the fiberscope fixing structure 1 are locked or unlocked by the locking member 3. In other embodiments, as an alternative means, the displacement adjusting structure 2 and the optical fiber mirror fixing structure 1 may be connected in a snap-fit manner, for example, a plurality of clamping grooves are formed in the displacement adjusting structure 2, the clamping grooves are arranged at intervals in the first direction, and a protruding block is correspondingly arranged on the optical fiber mirror fixing structure 1, the position relationship between the displacement adjusting structure 2 and the optical fiber mirror fixing structure 1 is adjusted by switching the protruding block between different clamping grooves, it should be noted that locking and unlocking are understood in a broad sense, based on the fact that the static friction force between the protruding block and the clamping groove is greater than the static friction force between the protruding block and the surface of the optical fiber mirror fixing structure 1, the protruding block is defined to be locked when located in the clamping groove, and the protruding block is unlocked when located outside the clamping groove.

In the embodiment shown in fig. 1 and 2, the optical fiber mirror fixing structure 1 is inserted into the displacement adjusting structure 2, the side surface of the displacement adjusting structure 2 is provided with a locking hole 231 in threaded connection with the locking member 3, and the locking member 3 is screwed to abut against or separate from the optical fiber mirror fixing structure 1, so that the optical fiber mirror fixing structure 1 and the displacement adjusting structure 2 are locked and unlocked, and the position relationship between the optical fiber mirror fixing structure 1 and the displacement adjusting structure 2 is adjusted quickly and conveniently. The locking piece 3 adopts a bolt, so that the operation is convenient. In other embodiments, as an alternative, the displacement adjusting structure 2 may be inserted into the optical fiber mirror fixing structure 1, the locking member 3 is in threaded connection with the optical fiber mirror fixing structure 1, and the locking and unlocking of the optical fiber mirror fixing structure 1 and the displacement adjusting structure 2 are achieved by screwing the locking member 3 to abut against or separate from the displacement adjusting structure 2.

In the embodiment shown in fig. 1 and 2, the displacement adjusting structure 2 includes a first fiberscope sleeve 22 and a sliding sleeve 23 which are detachably connected, and the sliding sleeve 23 is sleeved on the fiberscope fixing structure 1; the displacement adjusting structure 2 is locked and unlocked with the optical fiber mirror fixing structure 1 through a sliding sleeve 23. When the sliding sleeve 23 moves relative to the fiberscope fixing structure 1, the first fiberscope sleeve 22 is driven to move, so that the distance from the head end of the fiberscope fixing structure 1 to the tail end of the displacement adjusting structure 2 is adjusted. In this embodiment, the first fiberscope sleeve 22 and the sliding sleeve 23 are relatively independent members that are detachably connected, and in other embodiments, the first fiberscope sleeve 22 and the sliding sleeve 23 may alternatively be a single part that is integrally formed.

The first fiberscope sleeve 22 includes a slide coupling hole 223, a first passing hole 221, and a second passing hole 222, which are sequentially arranged in a first direction.

In the embodiment shown in fig. 1 and 2, the sliding sleeve connecting hole 223 is provided with an internal thread for being in threaded connection with the sliding sleeve 23, so as to facilitate disassembly and assembly, and in some other embodiments, an external thread may be provided on the outer surface of the sliding sleeve connecting hole 223, and an internal thread may be provided on the sliding sleeve 23, and both are in threaded connection.

In the embodiment shown in fig. 1 and 2, the first passage hole 221 is for insertion of the fiberscope holding structure 1, and accordingly, the aperture of the first passage hole 221 is larger than the aperture of the first fiberscope passing through the passage 11. In this embodiment, the aperture of the first through hole 221 is larger than that of the sliding sleeve 23, so that in the process of relative movement between the sliding sleeve 23 and the optical fiber scope fixing structure 1, the first through hole 221 is not in direct frictional contact with the optical fiber scope fixing structure 1, and adjustment is facilitated. In other embodiments, the first through hole 221 can have an aperture equal to that of the sliding sleeve 23.

In the embodiment shown in fig. 1 and 2, the second through-hole 222 is used to guide the insertion part 400, the second through-hole 222 includes a guide part 2221 for connecting the first through-hole 221, the aperture of the guide part 2221 gradually increases from its narrow end, which connects the first through-hole 221, to its thick end; the insertion part 400 enters from the thick end of the second through hole 222 and is smoothly inserted into the first through hole 221 under the guidance of the guide part 2221. The second through hole 222 is also used for connecting the first fixed structure 5 of the adjustable guard structure 4.

In the embodiment shown in fig. 1 and 2, the sliding sleeve 23 includes a locking section 232 and a connecting section 233, the locking section 232 is detachably connected to the fiberscope fixing structure 1, that is, the locking member 3 is connected to the locking section 232, and the connecting section 233 is in threaded connection with the first fiberscope casing 22. In the radial direction of the sliding sleeve 23, the locking section 232 protrudes out of the connecting section 233 and forms a first limiting surface 234, and the first limiting surface 234 can limit the end surface of the first optical fiber mirror sleeve and also plays a role in positioning the first optical fiber mirror sleeve. In this embodiment, the locking section 232 and the connecting section 233 are both annular, and accordingly, the first limiting surface 234 is an annular surface, while in other embodiments, the first limiting surface 234 may be formed by the locking section 232 partially protruding from the connecting section 233, and one first limiting surface 234 is provided on the peripheral side of the locking section 232 or a plurality of first limiting surfaces 234 are arranged at intervals.

The fiberscope fixing structure 1 comprises a second fiberscope sleeve 12 and a fiberscope fixing piece 13, and after the insertion part 400 penetrates through the second fiberscope sleeve 12 and the fiberscope fixing piece 13, the second fiberscope sleeve 12 and the fiberscope fixing piece 13 interact to enable the fiberscope fixing piece 13 to be locally deformed to clamp the insertion part 400. The second fiberscope sleeve 12 and the fiberscope holder 13 are further described below with reference to fig. 1 and 2.

In the embodiment shown in fig. 1 and 2, the fiberscope fixing structure 1 is locked and unlocked by the second fiberscope sleeve 12 and the displacement adjusting structure 2, that is, the sliding sleeve 23 is sleeved on the second fiberscope sleeve 12, and the locking member 3 abuts against the second fiberscope sleeve 12 and then locks the second fiberscope sleeve and the sliding sleeve 23. The fiberscope holder 13 is adapted to be locally deformed against the second fiberscope sleeve 12 such that the inner diameter of the first fiberscope through the passage 11 corresponding to the deformed position is contracted, thereby clamping and fixing the insertion portion 400, and the fiberscope holder 13 is further adapted to be connected to the tube-like instrument 100.

In the embodiment shown in fig. 1 and 2, the second fiberscope sleeve 12 is an inner sleeve and the first fiberscope sleeve 22 is an outer sleeve, while in other embodiments, the second fiberscope sleeve 12 is an outer sleeve and the first fiberscope sleeve 22 is an inner sleeve.

In the embodiment shown in fig. 1 and 2, the second fiberscope boot 12 comprises a third through-going hole 123 for the fiberscope to pass through, the third through-going hole 123 being part of the first fiberscope through-passage. The second fiberscope ferrule 12 includes a displacement compensation portion 121 and a connection portion 122 which are integrally formed, and a part of the third through hole 123 is located on the displacement compensation portion 121, and another part is located on the connection portion 122. The fixing structure 1 of the optical fiber mirror is locked and unlocked by the displacement compensation part 121 and the displacement adjusting structure 2, namely the sliding sleeve 23 is sleeved on the displacement compensation part 121, and the locking piece 3 is locked with the sliding sleeve 23 by abutting against the displacement compensation part 121.

In the embodiment shown in fig. 1 and 2, the positions of the connecting portion 122 and the fiberscope holder 13 in the first direction are adjustable, so that the connecting portion 122 moves towards the fiberscope holder 13 and applies pressure to the fiberscope holder 13, and the fiberscope holder 13 can be locally deformed under the action of the pressure to clamp the insertion portion 400, so that the insertion portion 400 is fixed, and the insertion portion 400 is prevented from twisting and moving axially relative to the tubular instrument 100; when the connecting portion 122 is moved in the opposite direction with respect to the scope holder 13 and the above-mentioned pressure is removed, the deformed position of the scope holder 13 is restored to the natural state, and the insertion portion 400 is released, and at this time, the insertion portion 400 can be drawn out or further pushed in from the first scope passing path 11.

In the embodiment shown in fig. 1 and 2, the connecting portion 122 includes an inner ring 1221 and an outer ring 1222 for passing the fiberscope therethrough, the fiber holder is inserted between the inner ring 1221 and the outer ring 1222, and the inner ring 1221 is also inserted in the inner cavity 1311 of the fiber holder so as to apply pressure to the fiber holder.

In the embodiment shown in fig. 1 and 2, in the radial direction of the second fiberscope sleeve 12, the connecting portion 122 protrudes from the displacement compensation portion 121 to form a second limiting surface 124 for limiting the displacement adjusting structure 2, and when the head end of the displacement adjusting structure 2 abuts against the second limiting surface 124, i.e. the sliding sleeve 23 contacts the second limiting surface 124, the length of the medical fiberscope protection device 200 is the smallest.

In the embodiment shown in fig. 1 and 2, a limiting member 125 is disposed at an end of the displacement compensation portion 121 away from the connection portion 122, in a radial direction of the second fiberscope sleeve 12, the limiting member 125 protrudes out of the displacement compensation portion 121 to form a third limiting surface 126, the third limiting surface 126 is used for limiting the displacement adjustment structure 2, and when the sliding sleeve 23 abuts against the third limiting surface 126, the length of the medical fiberscope protection device 200 is the largest. The stopper 125 prevents the sliding sleeve 23 from being separated from the second fiberscope sleeve 12, thereby improving the reliability of the medical fiberscope protection device 200. The second stop surface 124 and the third stop surface 126 cooperate to define a range of motion of the sliding sleeve 23 relative to the fiberscope fixture 1.

In this embodiment, the limiting element 125 is a nut screwed to the displacement compensation portion 121, and in other embodiments, as an alternative, the limiting element 125 may be formed by partially protruding relative to the displacement compensation portion 121, the limiting element 125 and the displacement compensation portion 121 are integrally formed, and when the sliding sleeve 23 is installed, the sliding sleeve 23 is pressed onto the displacement compensation portion 121 by using pressure.

In the embodiment shown in fig. 1 and 2, the fiber mirror mount 13 includes a mount 131 and a flexible mount 132; the positions of the fixed seat 131 and the second fiberscope sleeve 12 in the first direction are adjustable to compress or release the flexible fixing member 132, the flexible fixing member 132 is used for contracting in the aperture after being subjected to axial compression to clamp and fix the insertion portion 400, and correspondingly, the aperture of the flexible fixing member 132 in a natural state is larger than the diameter of the insertion portion 400 so as to facilitate the insertion and the extraction of the insertion portion 400.

In the embodiment shown in fig. 1 and 2, the fixing base 131 has an inner cavity 1311, the flexible fixing member 132 is disposed in the inner cavity 1311, the inner ring 1221 of the second fiberscope cannula 12 is inserted into the inner cavity 1311, and the relative positions of the connecting portion 122 and the fixing base 131 in the first direction are adjusted to enable the inner ring 1221 to press the flexible fixing member 132 against one end of the inner cavity 1311, or to release the force applied to the flexible fixing member 132, i.e., the inner ring 1221 can be used to compress or release the flexible fixing member 132. The aperture of the compressed flexible fixing member 132 is smaller than 0.8mm, and the flexible fixing member can be suitable for clamping and fixing an ultrafine fiber mirror with the diameter of an insertion part of 0.8-1.2 mm. In other embodiments, as an alternative, the inner cavity 1311 may be disposed on the second fiberscope sleeve 12, the connecting portion 122 may be disposed on the fixing base 131, and after the flexible fixing member 132 is disposed in the inner cavity 1311, the end of the fixing base 131 is used to apply pressure to the flexible fixing member 132; as another alternative, the flexible fixing member 132 is interposed between the end surface of the fixing base 131 and the end surface of the second fiber lens sleeve 12, as long as the flexible fixing member 132 can receive and clamp the insertion portion 400 in the clamped lower bore diameter of the fixing base 131 and the second fiber lens sleeve 12.

In the embodiment shown in fig. 1 and 2, the fixing base 131 is screwed to the second fiberscope sleeve 12 so as to adjust the positional relationship therebetween in the first direction.

In the embodiment shown in fig. 1 and fig. 2, an anti-falling structure is further disposed between the fixing base 131 and the second fiberscope ferrule 12, specifically: the fixing base 131 has a limiting protrusion 1312, the second fiberscope sleeve 12 has a limiting groove 127, the limiting protrusion 1312 is used for limiting a first side surface of the limiting groove 127, and the first side surface is a side surface of the limiting groove 127 far away from the displacement adjusting structure 2. In the first direction, the length of the limiting protrusion 1312 is smaller than that of the limiting groove 127, so that the limiting protrusion 1312 can move in the first direction relative to the limiting groove 127 to adapt to the relative position change of the fixing seat 131 and the second fiberscope sleeve 12 in the first direction. In other embodiments, the retention protrusion 1312 may be disposed on the second fiberscope sleeve 12 and the retention groove 127 may be disposed on the holder 131 as an alternative, and the relationship between the retention protrusion 1312 and the retention groove 127 may be the same as in the embodiment of fig. 1 and 2.

It should be noted that the medical fiberscope protection device 200 according to any of the above embodiments may be used alone, and may also be applied to the medical fiberscope protection system 600.

Please refer to fig. 3 to 7 for understanding. The embodiment of the utility model provides a medical fiberoptic mirror protection system 600 is still provided, including medical fiberoptic mirror protection device 200 and medical fiberoptic mirror protection equipment 300 that any above-mentioned embodiment relates to. Wherein, medical optical fiber mirror protection equipment 300 is used for connecting medical optical fiber mirror protection device 200 and eyepiece portion 500 of optical fiber mirror, and medical optical fiber mirror protection equipment 300 includes adjustable protective structure 4, and adjustable protective structure 4 includes adjustable protection passageway 41, and adjustable protection passageway 41 is used for cup jointing on portion 400 inserts, protects portion 400 inserts, reduces the risk of buckling. The length of the adjustable protection structure 4 is adjustable to increase or shorten the length of the adjustable protection channel 41, when the adjustable protection structure is matched with a shorter tube instrument 100 for use, the length of the adjustable protection structure 4 is extended, and when the adjustable protection structure is matched with a longer tube instrument 100 for use, the length of the adjustable protection structure 4 is shortened, so that the medical optical fiber scope protection device 300 can be matched with tube instruments 100 with different lengths for use.

The maximum adjustment amount of the adjustable protection structure 4 is larger than the maximum stroke of the displacement adjustment structure 2 moving relative to the optical fiber mirror fixing structure 1, namely the length adjustment range of the medical optical fiber mirror protection device 300 is larger than the length adjustment range of the medical optical fiber mirror protection device 200, the medical optical fiber mirror protection device 300 can realize coarse adjustment, and the medical optical fiber mirror protection device 200 can realize fine adjustment.

In the embodiment shown in fig. 5, the adjustable protection structure 4 is an elastic structure, and the tensile deformation amount of the adjustable protection structure 4 is at least 1 time of its natural length, and the compressive deformation amount is at least 0.5 time of its natural length.

In the embodiment shown in fig. 5, the adjustable protection structure 4 comprises an elastic portion 42, and the elastic portion 42 is configured to change in length when being subjected to a tensile force or a compressive force, and when the tensile force or the compressive force is removed, the length of the elastic portion 42 is kept unchanged, that is, the elastic portion does not recover to the natural length due to the removal of the external force. The elastic portion 42 is a bellows or a spring tube, and is illustrated by a bellows in fig. 3 and a spring tube in fig. 4.

In the embodiment shown in fig. 5, the medical fiberscope protection apparatus 300 further comprises a first fixing structure 5 and a second fixing structure 6, wherein the first fixing structure 5 is used for detachably connecting the first end of the adjustable protection structure 4 to the medical fiberscope protection device 200; the second fixing structure 6 is used for detachably connecting the second end of the adjustable protection structure 4 to the eyepiece portion 500; in the application process, in the process of the first fixing structure 5 and the second fixing structure 6, the length of the adjustable protection structure 4 is adaptively changed, and after the relative positions of the first fixing structure 5 and the second fixing structure 6 are stabilized, the length of the adjustable protection structure 4 is also kept stable.

In the application process, the part of the insertion part 400 exposed out of the tube instrument 100 is often longer, coarse adjustment is performed by using the medical optical fiber scope protection device 300, the tube instrument 100 can be more compatible, and when fine adjustment is performed by combining the medical optical fiber scope protection device 200, the head end lens of the optical fiber scope can be stably flushed with the head end of the tube instrument 100 in different visual operations, so that the wide and clear visual field is ensured.

The embodiment of the utility model provides a still provide a fiberscope system, including pipe class apparatus 100, fiberscope and the medical fiberscope protection system 600 that any embodiment as above provided. The fiberscope includes an insertion part 400 and an eyepiece part 500, and the insertion part 400 is used for acquiring image information and transmitting the image information to the eyepiece part 500.

The fiber mirror system carries out coarse adjustment through medical fiber mirror protection device 300, carries out meticulous regulation through medical fiber mirror protection device 200, can realize that the head end camera lens of fiber mirror can both stably flush with the 100 head ends of tubaeform apparatus when different visual operations, guarantees the broadness and the clarity in the field of vision.

Fig. 6 and 7 illustrate an application scenario when the medical fiberscope protection system 600 is matched with the tube-like instruments 100 with different lengths, where the tube-like instrument 100 in fig. 6 is longer, the insertion portion 400 exposed outside the tube-like instrument 100 is shorter, the tube-like instrument 100 in fig. 7 is shorter, and the insertion portion 400 exposed outside the tube-like instrument 100 is longer, and fig. 6 and 7 intuitively show that the medical fiberscope protection devices 300 have different lengths, and certainly, the length of the fiberscope protection device 200 in fig. 6 and 7 in the traditional Chinese medicine is also different, only that the length is not intuitively shown in the figures.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (14)

1. The utility model provides a medical fiberscope protection device for be fixed in tubaeform apparatus with the inserted part of fiberscope, its characterized in that, medical fiberscope protection device includes:

the optical fiber mirror fixing structure is used for connecting the insertion part and the tube instrument and comprises a first optical fiber mirror penetrating channel extending along a first direction;

the displacement adjusting structure comprises a second optical fiber mirror penetrating channel which is coaxial with the first optical fiber mirror penetrating channel; the displacement adjusting structure is arranged to be capable of moving to any position along a preset path relative to the optical fiber mirror fixing structure and then locking and unlocking with the optical fiber mirror fixing structure; the preset path extends along the first direction.

2. A medical fiberscope protection device according to claim 1, wherein said fiberscope securing structure and said displacement adjustment structure are inserted in said first direction, and said fiberscope securing structure and said displacement adjustment structure are slidably connected in said first direction after being unlocked.

3. A medical fiberscope protection device according to claim 2,

the medical optical fiber scope protection device also comprises a locking piece, and the displacement adjusting structure and the optical fiber scope fixing structure are locked or unlocked through the locking piece;

the optical fiber mirror fixing structure is inserted in the displacement adjusting structure, the side face of the displacement adjusting structure is provided with a locking hole in threaded connection with the locking piece, and the locking piece abuts against the optical fiber mirror fixing structure to lock the optical fiber mirror fixing structure and the displacement adjusting structure.

4. A medical fiberscope protecting apparatus according to claim 1, wherein said displacement adjusting structure comprises a first fiberscope sleeve and a sliding sleeve which are detachably connected, and said sliding sleeve is sleeved on said fiberscope fixing structure; the displacement adjusting structure is locked and unlocked through the sliding sleeve and the optical fiber mirror fixing structure.

5. A medical fiberscope protection device according to claim 4,

the first optical fiber scope sleeve comprises a sliding sleeve connecting hole, a first through hole and a second through hole which are sequentially arranged along the first direction;

the sliding sleeve connecting hole is a threaded hole;

the first through hole is used for the insertion of the fiber mirror fixing structure;

the second through hole is used for guiding the inserting part, the second through hole comprises a guide part used for connecting the first through hole, the aperture of the guide part is gradually increased from a narrow end of the guide part to a thick end of the guide part, and the narrow end is connected with the first through hole;

the sliding sleeve comprises a locking section and a connecting section, the locking section is detachably connected with the optical fiber mirror fixing structure, and the connecting section is in threaded connection with the first optical fiber mirror sleeve;

in the radial direction of the sliding sleeve, the locking section protrudes out of the connecting section and forms a first limiting surface.

6. A medical fiberscope protection device according to claim 1, wherein said fiberscope securing structure comprises:

the optical fiber mirror fixing structure is locked and unlocked with the displacement adjusting structure through the second optical fiber mirror sleeve;

a fiberscope holder for fixing the insertion portion by being partially deformed against the second fiberscope sleeve, and for connecting the tube-like instrument.

7. A medical fiberscope protection device according to claim 6,

the second fiberscope sleeve comprises a third through hole for the fiberscope to penetrate through;

the second optical fiber mirror sleeve comprises a displacement compensation part, and the optical fiber mirror fixing structure is locked and unlocked with the displacement adjusting structure through the displacement compensation part;

the second fiberscope sleeve further comprises a connecting part, and the positions of the connecting part and the fiberscope fixing part in the first direction are adjustable, so that the fiberscope fixing part bears the pressure of the connecting part and is locally deformed to clamp the inserting part, and the deformed position of the fiberscope fixing part releases the inserting part after the pressure of the connecting part disappears;

the connecting part comprises an inner ring and an outer ring, the optical fiber fixing piece is inserted between the inner ring and the outer ring, and the inner ring is inserted in an inner cavity of the optical fiber fixing piece;

in the radial direction of the second optical fiber mirror sleeve, the connecting part protrudes out of the displacement compensation part to form a second limiting surface for limiting the displacement adjusting structure;

a limiting piece is arranged at one end, far away from the connecting part, of the displacement compensation part, and the limiting piece protrudes out of the displacement compensation part in the radial direction of the second optical fiber mirror sleeve to form a third limiting surface for limiting the displacement adjusting structure;

the limiting piece is in threaded connection with the displacement compensation part.

8. A medical fiberscope protection device according to claim 6,

the optical fiber mirror fixing piece comprises a fixing base and a flexible fixing piece; the positions of the fixed seat and the second fiberscope sleeve in the first direction are adjustable so as to compress or release the flexible fixed part, and the flexible fixed part is used for contracting in the aperture after being compressed axially so as to clamp and fix the insertion part;

the flexible fixing piece is arranged in the fixing seat, or arranged in the second optical fiber mirror sleeve, or clamped between the end face of the fixing seat and the end face of the second optical fiber mirror sleeve.

9. A medical fiberscope protection device according to claim 8,

the fixed seat is in threaded connection with the second fiber lens sleeve;

one of the fixed seat and the second optical fiber mirror sleeve is provided with a limiting bulge, the other one of the fixed seat and the second optical fiber mirror sleeve is provided with a limiting groove, the limiting bulge is used for limiting the side surface of the limiting groove far away from the displacement adjusting structure, and the length of the limiting bulge is smaller than that of the limiting groove in the first direction;

the fixing seat is provided with an inner cavity, the flexible fixing piece is arranged in the inner cavity, and the inner ring of the second optical fiber scope sleeve is inserted in the inner cavity and used for compressing or releasing the flexible fixing piece;

the aperture of the compressed flexible fixing piece is less than 0.8mm.

10. A medical fiberscope protection device according to any one of claims 1 to 9,

the aperture of the first optical fiber mirror penetrating channel is equal to that of the second optical fiber mirror penetrating channel, and the aperture is 1-2.5mm;

in the first direction, the relative position of the optical fiber mirror fixing structure and the displacement adjusting structure is adjusted by less than or equal to 20mm.

11. A medical fiberscope protection system, comprising:

a medical fiberscope protection device according to any one of claims 1-10;

the medical optical fiber scope protection device is used for connecting the medical optical fiber scope protection device and an eyepiece part of an optical fiber scope, the medical optical fiber scope protection device comprises an adjustable protection structure, the adjustable protection structure comprises an adjustable protection channel sleeved on the insertion part, and the length of the adjustable protection structure can be adjusted to increase or shorten the length of the adjustable protection channel;

the maximum adjustment quantity of the adjustable protection structure is larger than the maximum stroke of the displacement adjustment structure relative to the movement of the optical fiber mirror fixing structure.

12. A medical fiberscope protection system according to claim 11, wherein said adjustable protective structure is an elastic structure, and wherein said adjustable protective structure has a tensile deformation amount of at least 1 times its natural length and a compressive deformation amount of at least 0.5 times its natural length.

13. A medical fiberscope protection system according to claim 11, wherein said medical fiberscope protection apparatus further comprises:

the first fixing structure is used for detachably connecting the first end of the adjustable protection structure to the medical fiberscope protection device;

and the second fixing structure is used for detachably connecting the second end of the adjustable protection structure to the eyepiece part.

14. A fiber optic mirror system, comprising:

a tube-like instrument;

the optical fiber mirror comprises an insertion part and an eyepiece part, wherein the insertion part is used for acquiring image information and transmitting the image information to the eyepiece part;

a medical fiberoptic scope protection system according to any of claims 11-13.

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