CN110051414B - Clamp type foreign matter taking device and method thereof - Google Patents
Clamp type foreign matter taking device and method thereof Download PDFInfo
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- CN110051414B CN110051414B CN201910369452.XA CN201910369452A CN110051414B CN 110051414 B CN110051414 B CN 110051414B CN 201910369452 A CN201910369452 A CN 201910369452A CN 110051414 B CN110051414 B CN 110051414B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/50—Instruments, other than pincettes or toothpicks, for removing foreign bodies from the human body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00743—Type of operation; Specification of treatment sites
- A61B2017/00818—Treatment of the gastro-intestinal system
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- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
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- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
The invention relates to a clamp type foreign matter taking device and a clamp type foreign matter taking method, belongs to the technical field of medical instruments, and comprises a fixing device, an expansion device and an imaging device, wherein the fixing device comprises a shell, a first push rod, a second push rod, a telescopic flexible shaft, a main clamp, a first auxiliary clamp and a second auxiliary clamp, the main clamp comprises a first clamping finger and a second clamping finger, the telescopic flexible shaft is arranged in the shell, one end of the first push rod and one end of the second push rod are respectively provided with a flange, a sealing ring which is movably sealed with the inner wall of a cavity of the shell is arranged on each flange, the expansion device comprises a net body, a net body driver and a net body shape limiter, and the imaging device comprises a camera arranged at the front end of the net body shape limiter and a display connected with the camera through a lead. The invention can fix the foreign matters more firmly, reduce the risk of slipping out, and is suitable for taking out some longer foreign matters; and the net body exists in the operation, and the foreign matters can not damage the wall of the digestive tract, so that the operation is safer.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a clamp type foreign matter taking device and a method thereof.
Background
Gastrointestinal foreign bodies are common abdominal emergency foreign bodies, most of which are swallowed, and occur well in infants and young children and in psychiatric diseases or in people who attempt to kill themselves. Most of the foreign bodies can be discharged through the anus, but some patients need surgery treatment due to difficulty in discharging the foreign bodies or complications. By the way, the operation is divided into two cases: one is non-invasive surgery, which takes out foreign bodies by entering the digestive tract from the oral cavity through a guide tube, and the other is to take out foreign bodies by directly opening a wound in the abdominal cavity.
However, the fixing device is required to be fixed during taking out the foreign body whether the foreign body is invasive or non-invasive, so that the foreign body can be taken out. Due to the variety and irregularity of foreign bodies, the prior art uses different fixing forms, such as: the sheet foreign body is in clamp type, the column foreign body is in claw type, the ball or block foreign body is in pocket net type.
The clamp type uses two clamp fingers to clamp foreign bodies, and the operation is simple. However, as the two clamping fingers are clamped through the rotating shaft, the included angle of the two clamping fingers is changed during clamping, foreign matters can be extruded out of the clamping position, and the clamping failure is caused; meanwhile, the width of the two clamping fingers cannot be adjusted, and for some long foreign matters, the clamping force of the clamping fingers cannot resist the frictional resistance of the digestive tract, so that the foreign matters cannot be taken out.
Disclosure of Invention
In view of the above, the present invention provides a clamp-type foreign object removing device and a method thereof, so as to solve the problems of the prior art that the foreign object removing device is not easy to fix and the clamping force is insufficient.
The invention is realized by the following technical scheme:
a clamp type foreign body taking device comprises a fixing device, an expanding device and an imaging device,
the fixing device comprises a shell, a first push rod, a second push rod, a flexible shaft, a main clamp, a first auxiliary clamp and a second auxiliary clamp, wherein the main clamp comprises a first clamp finger and a second clamp finger,
the shell is a thin shell with a cavity,
the flexible shaft is arranged in the cavity of the shell,
one end of each of the first push rod and the second push rod is provided with a flange which protrudes outwards from the radial direction, a sealing ring which is movably sealed with the inner wall of the cavity of the shell is arranged on the flange, the shell is divided into three mutually independent chambers by the two flanges, the three chambers are communicated with an external hydraulic medium through a power pump, the power pump is electrically connected with an external power supply through a lead,
two ends of the flexible shaft are respectively connected with the two flanges to form an elastic shaft with two ends capable of working in a telescopic way,
the other ends of the first push rod and the second push rod respectively extend out of the shell, the first clamping finger is arranged at the end part of one end of the first push rod extending out of the shell, the second clamping finger is arranged at the end part of one end of the second push rod extending out of the shell,
the first auxiliary clamp is arranged on the first clamping finger, the second auxiliary clamp is arranged on the second clamping finger,
the expanding unit includes dictyosome, dictyosome driver and dictyosome shape limiter, the dictyosome includes a plurality of dictyosome ribs that become the circumference and connects the netcom between the dictyosome rib, the dictyosome rib adopts memory material to make, and its one end is bent and is stereotyped into the zigzag toward outer along the radial direction of dictyosome, makes the dictyosome be the step body that the big one end of one end is little, the dictyosome driver is fixed with the tip of the step body, dictyosome shape limiter is provided with and is used for carrying out the shape limiting hole to the tip of the step body.
The net body driver is a hollow pipe body, and the fixing device is movably arranged in an inner hole of the net body driver through a traveling mechanism.
The imaging device comprises a camera arranged at the front end of the net body shape limiter and a display connected with the camera through a lead.
Further, first vice clamp and the vice clamp of second all include that first pair indicates, the vice finger of second and clamping mechanism, first pair indicates and the vice finger of second all includes clamping part, drive division and sets up the connecting hole between clamping part and drive division, two the connecting hole sets up same rotation axis, makes first pair indicate and the vice finger rotatable coupling of second, clamping mechanism sets up on the drive division, flexible axle includes one section flexible section of making by spring or rubber strip at least.
Further, clamping mechanism is including setting up the first connecting rod group that indicates one side at first pair and setting up the second connecting rod group that indicates one side at the second pair, first connecting rod group and second connecting rod group all include first connecting rod and pass through pivot swivelling joint's second connecting rod with first connecting rod, and the other end of two first connecting rods is swivelably fixed respectively on the drive division of homonymy, and two second connecting rod other ends swivelably fixed are on same fixed column, the fixed column is fixed on pressing from both sides and indicating, clamping mechanism is still including setting up epaxial application of force rope.
Further, still include application of force guiding mechanism, application of force guiding mechanism is in including the fixing base that is nearly font, setting the support of fixing base inner chamber and two guide rolls of setting on the support side by side, nearly word both sides of fixing base are fixed through fastener and clamp finger, the support includes two horizontal plates that are setting from top to bottom, two the parallel and rotatable fixing of guide roll is between two horizontal plates, be provided with the arc wall to the indent on the outer periphery of guide roll, form application of force rope guide way between the two guide roll arc walls.
Further, the net film is of a double-layer structure comprising an inner layer made of high-elasticity polyethylene fibers and an outer layer made of a plastic film.
Furthermore, the outer surface of the net body driver is provided with fixing grooves which correspond to the net body ribs one to one.
Furthermore, the advancing mechanism comprises a guide seat and a force application pipe, one end of the force application pipe is fixed on the guide seat, the other end of the force application pipe extends out of the net body, the guide seat is arranged on the inner hole wall of the net body driver in a sliding mode, and a lead for controlling the power pump to be connected with an external power supply penetrates through the force application pipe.
And one end of the medium container is communicated with the power pump through a pipeline, and the other end of the medium container is fixed with the guide seat through a fastening piece.
The invention has the beneficial effects that:
1. the foreign bodies can be clamped in parallel through the first push rod and the second push rod, and the angle change is avoided, so that the probability of the foreign bodies slipping out can be reduced;
2. the problem of insufficient clamping force in the prior art can be solved by fixing some longer foreign matters through the two auxiliary clamps arranged on the clamping fingers;
3. through the combined application of the shell, the first push rod, the second push rod, the flange and the telescopic flexible shaft, the thickness of the clamped foreign body can be adjusted, the clamping force is more stable, and the clamping is firmer.
4. The net body is made of memory materials, and after the net body is released, the net body recovers the fixed size, the diameter of the net body is expanded to the wall of the digestive tract, foreign matters are isolated from the wall of the digestive tract, the digestive tract is expanded, and the fixing operation is convenient;
5. the foreign bodies and the digestive tract wall are isolated by the net body, so that the operation injury of the foreign bodies to the digestive tract wall can be avoided, and the protective effect on the digestive tract is formed;
6. through the combined use of the shape limiting driver, the net body driver and the force application pipe, the composite operation of advancing, expanding and fixing can be carried out.
In a word, the invention can fix the foreign matters more firmly, reduce the risk of slipping out, and is suitable for taking out some longer foreign matters; and the net body exists in the operation, and the foreign matters can not damage the wall of the digestive tract, so that the operation is safer.
Drawings
FIG. 1 is a schematic view of a clamp-type foreign matter removing device according to the present invention;
FIG. 2 is a schematic view of a combination of a mesh restrictor, a fixation device and an expansion device;
FIG. 3 is a cross-sectional view of a mesh restrictor;
FIG. 4 is a front view of the mesh body;
FIG. 5 is a schematic view of the expanded mesh body;
FIG. 6 is a front view of the net body drive;
FIG. 7 is a cross-sectional view of a mesh body drive;
FIG. 8 is a front view of the fixture;
FIG. 9 is a top view of FIG. 8;
FIG. 10 is a schematic view of FIG. 9 with the slot cover removed;
FIG. 11 is a schematic view of the working state of the main clamp of the present invention;
FIG. 12 is a schematic view of the operating condition of the secondary clip of the present invention;
FIG. 13 is a schematic view of the force application guide mechanism;
FIG. 14 is a cross-sectional view of the inner or outer layer in thickness;
fig. 15 is a schematic view of a mesh body rib.
Description of reference numerals:
1-a housing; 2-a first push rod; 3-a second push rod; 4-a flexible shaft; 5-a first clamping finger; 6-second clamping finger; 7-a first secondary clip; 8-a second secondary clip; 9-a flange; 10-a sealing ring; 11-a power pump; 12-first secondary finger; 13-second little finger; 14-a clamping mechanism; 15-a clamping part; 16-a drive section; 17-a rotating shaft; 18-a first link; 19-a second link; 20-a rotating shaft; 21-fixed column; 22-force application rope; 23-a clamping spring; 24-a fixed seat; 25-a guide roll; 26-a horizontal plate; 27-an arc-shaped groove; 28-force application rope guide groove; 29-a telescoping section; 30-a media container; 31-a pipeline; 32-a control valve; 33-a secondary finger groove; 34-a slot cover; 35-sliding the groove cover into the groove; 36-anti-slip teeth; 37-a fixture; 38-an expansion device; 39-a mesh body; 40-a mesh driver; 41-a net body shape limiter; 42-mesh body ribs; 43-omentum; 44-a fixed groove; 45-inner layer; 46-an outer layer; 47-a camera; 48-a display; 49-a guide seat; 50-a force application pipe; 51-limited aperture; 52-external power supply; 53-a handlebar; 54-operating buttons.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the above description of the present invention, it should be noted that the terms "one side", "the other side" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or the element to which the present invention is directed must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
Further, the term "identical" and the like do not mean that the components are absolutely required to be identical, but may have slight differences. The term "perpendicular" merely means that the positional relationship between the components is more perpendicular than "parallel", and does not mean that the structure must be perfectly perpendicular, but may be slightly inclined.
As shown in fig. 1 to 15, the present embodiment provides a clamp-type foreign object removing device, which includes a fixing device 37, an expanding device 38, and an imaging device, specifically:
the fixing device comprises a shell 1, a first push rod 2, a second push rod 3, a flexible shaft 4, a first auxiliary clamp 7 and a second auxiliary clamp 8, wherein a main clamp comprises a first clamping finger 5 and a second clamping finger 6, the shell is a hollow thin shell and can be made of metal materials, so that the shell has higher structural strength, the flexible shaft is arranged in the hollow cavity of the shell and can extend or contract, one end of each of the first push rod and the second push rod is provided with a flange 9, the flange protrudes outwards from the radial direction and is close to the inner cavity wall of the shell, the flange is provided with a sealing ring 10, so that the flange and the inner wall of the shell can be movably sealed, the shell is divided into three mutually independent chambers by the two flanges, the three chambers are communicated with external hydraulic media through a power pump 11, the power pump pumps the hydraulic media into or out of the chambers, two ends of the flexible shaft are respectively connected with the two flanges to form an elastic shaft with two ends capable of telescopic, the other ends of the first push rod and the second push rod respectively extend out of the shell, the first clamping finger is arranged at the end part of one end of the first push rod extending out of the shell, and the second clamping finger is arranged at the end part of one end of the second push rod extending out of the shell.
When the power pump pumps the hydraulic medium into the middle chamber and pumps the hydraulic medium out of the chambers on the two sides, under the action of hydraulic pressure, the elastic shaft is stretched, and the first push rod and the second push rod respectively extend outwards, so that the distance between the first clamping finger and the second clamping finger is increased to the size of a foreign matter clamping part, and preparation is made for clamping operation; on the contrary, the distance between the first clamping finger and the second clamping finger is reduced, and the clamping operation is performed.
In this embodiment, the first sub-clip is disposed on the first clip finger, and the second sub-clip is disposed on the second clip finger. When the distance between the first clamping finger and the second clamping finger changes, the distance between the first auxiliary clamp and the second auxiliary clamp changes, so that the longer foreign body can be clamped, and the clamping is firmer due to the two clamping positions.
The expanding device comprises a net body 39, a net body driver 40 and a net body shape limiter 41, wherein the net body comprises a plurality of net body ribs 42 and a net film 43 connected between the net body ribs, the plurality of net body ribs are uniformly distributed along the circumference of the same diameter to form a circular pipe body, and the net body ribs are made of memory materials, such as: Au-Cd, Ag-Cd, Cu-Zn-Al, Cu-Zn-Sn, Cu-Zn-Si, Cu-Sn, Cu-Zn-Ga, In-Ti, Au-Cu-Zn, NiAl, Fe-Pt, Ti-Ni-Pd, Ti-Nb, U-Nb and Fe-Mn-Si, etc., the phase transition temperature is more than 42 ℃, at the moment, the shape of the net body rib can not change under the body temperature, and then the net body rib can normally work under any body temperature, the memory shape of the net body rib of the embodiment is Z-shaped, the net body is formed by bending the same end of all the net body ribs outwards along the radial direction of the net body, so that the net body is shaped into a step body with a large end and a small end, the net body driver is fixed with the small end of the net body rib, a plurality of fixing grooves 44 are arranged on the outer surface of the net body rib, and the plurality of fixing grooves are arranged In one-to-one correspondence with the net body rib, when the fixing, the net body rib can be inserted into the fixing grooves, certainly, for fixed firm, can insert the fixed slot after the dictyosome rib, bond with glue, also can be fixed with both direct riveting, simultaneously, dictyosome shape limiter is provided with the limit shape hole 53 that is used for carrying out the limit shape to the main aspects of the step body, and the diameter in limit shape hole is less than the diameter of dictyosome main aspects when free state, can carry out the limit shape adjustment to the dictyosome main aspects like this to adapt to the foreign matter of not unidimensional.
In the embodiment, the net film can be a plastic film which is corrosion resistant and can normally work in gastric acid; or a high-elasticity polyethylene fiber film, wherein the high-elasticity polyethylene fiber has high elasticity, small specific gravity, good rigidity and high strength, and can resist sharp foreign matters and prevent puncture.
More preferably, the mesh film of this embodiment has a double-layered structure including an inner layer 45 of high-elasticity polyethylene fibers and an outer layer 46 of a plastic film, as shown in fig. 14, so that it can prevent corrosion and resist damage by sharp foreign objects, and thus is more suitable for gastric acid or digestive tract environments.
In this embodiment, the web ribs are free, with the Z-shaped bent edge at an angle α with the web axis, as shown in FIG. 15, α is preferably 30-60, so that the web has multiple dimensions during release to return to a memory shape to accommodate different sizes of alimentary tracts and foreign bodies.
The imaging system comprises a camera 47 arranged at the front end of the net body shape limiter and a display 48 connected with the camera through a lead, an expansion device and a fixing device are arranged at the front end of the net body shape limiter, a control handle 53 is arranged at the rear end of the net body shape limiter, and an operating button 54 of a main clamp and an auxiliary clamp is arranged on the control handle.
The net body shape limiter and the net body driver are made of plastics or rubber and have certain strength and elasticity. Can control dictyosome shape limiter through the operating handle of dictyosome shape limiter rear end and remove at the alimentary canal, at this moment, be equivalent to the guide tube, drive and the direction to the device is whole to the observation of place ahead object and route through the camera of dictyosome shape limiter front end, the rethread display carries out video display with the observation result, when dictyosome shape limiter reachs foreign matter the place ahead, dictyosome shape limiter stops to move, carries out fixed operation to the foreign matter through operating button.
In this embodiment, the net body driver is a hollow pipe, the fixing device is movably disposed in the inner hole of the net body driver through the advancing mechanism, and the fixing device is driven to move through the advancing mechanism.
Compared with the prior art, the embodiment has the following advantages:
1. the first push rod and the second push rod are pushed by the hydraulic medium in the shell to simultaneously extend outwards to drive the first clamping finger and the second clamping finger to carry out clamping operation, and foreign matters cannot be extruded out due to parallel movement and no angle change;
2. the two pairs of clamps arranged on the clamp fingers can fix some longer foreign matters, so that the problem of insufficient clamping force in the prior art can be solved;
3. through the combined application of the shell, the first push rod, the second push rod, the flange and the telescopic flexible shaft, the clamping length can be adjusted, and the clamp is suitable for foreign bodies with larger diameters;
4. because the flanges of the push rod are the same in size, the hydraulic thrust of the push rod is consistent, and the clamping force of the two clamping fingers is also consistent, so that the clamping is more stable.
5. The net body is made of memory materials, and after the net body is released, the net body recovers the fixed size, the diameter of the net body is expanded to the wall of the digestive tract, foreign matters are isolated from the wall of the digestive tract, the digestive tract is expanded, and the fixing operation is convenient;
6. the foreign bodies and the digestive tract wall are isolated by the net body, so that the operation injury of the foreign bodies to the digestive tract wall can be avoided, and the protective effect on the digestive tract is formed;
7. by using the combination of the shape limiting driver, the net body driver and the advancing mechanism, the composite operation of advancing, expanding and fixing can be carried out.
In a word, the invention can fix the foreign matters more firmly, reduce the risk of slipping out, is suitable for taking out some longer foreign matters and increases the application range; and the net body exists in the operation, the foreign body can not damage the alimentary canal wall, so that the operation is safer, and the operation is more convenient due to the expansion of the space, thereby being beneficial to improving the efficiency and saving the operation time.
As a modification of the present embodiment, each of the first sub-clip and the second sub-clip includes a first sub-finger 12, a second sub-finger 13 and a clamping mechanism 14, each of the first sub-finger and the second sub-finger includes a clamping portion 15, a driving portion 16 and a connecting hole disposed between the clamping portion and the driving portion, the two connecting holes are provided with a same rotating shaft 17, and the rotating shaft fixes the clamping finger, so that the first sub-finger and the second sub-finger can be rotatably connected, further, the clamping mechanism includes a first link group disposed on one side of the first sub-finger and a second link group disposed on one side of the second sub-finger, each of the first link group and the second link group includes a first link 18 and a second link 19 rotatably connected to the first link through a rotating shaft 20, the other ends of the two first links are respectively rotatably fixed on the driving portion on the same side, the other ends of the two second links are rotatably fixed on a same fixing column 21, and, the clamping mechanism further includes a force application cord 22 disposed on the rotating shaft.
Pulling rotation axis horizontal migration through application of force rope, first connecting rod and second connecting rod relative rotation, both total lengths change, because second connecting rod one end is fixed on the fixed column, for the change of adaptation length, the link of first connecting rod and first secondary finger, or the link of first connecting rod and the vice finger of second, in order to be rotatory for the fixed column, and simultaneously, on fixed column and the equal fixed clamp finger of rotation axis, both positions and distance are invariable, therefore, first secondary finger and the vice finger of second are in order to rotate in order to adapt to the change of this kind of length, and then realize the distance change between two clamping parts, carry out centre gripping or release operation.
As a modification of this embodiment, a clamp spring 23 is provided between the two clamp portions, and the sub-clamp is kept at a constant clamping force by the elastic force of the clamp spring.
As the improvement of this embodiment, still include application of force guiding mechanism, application of force guiding mechanism is including the fixing base 24 that is nearly font, the support of setting at the fixing base inner chamber and set up two guide rolls 25 on the support side by side, nearly font both sides of fixing base are fixed with the clamp finger through the fastener, the support includes two horizontal plates 26 that are setting up from top to bottom, two parallel and rotatable fixes between two horizontal plates of guide roll, be provided with the arc wall 27 of indent on the outer periphery of guide roll, form application of force rope guide way 28 between two guide roll arc walls. The force application ropes on the two sides are limited and fixed through the force application rope guide grooves, the uniform direction is guided, and when the force application rope is used, the force application ropes can be led out of the alimentary canal and directly applied with force from the outside.
As an improvement of this embodiment, the flexible shaft may be a flexible section or a small flexible section, as long as the predetermined flexible length can be achieved. In this embodiment, the extension section 29 may be made of a spring or a rubber strip.
As the improvement of this embodiment, first clamp indicate and second clamp indicate all to be provided with secondary finger groove 33 and capping 34, and secondary finger groove is by the inside extension setting of clamp finger outside, is provided with capping sliding groove 35 at secondary finger groove top, and the capping is installed fixedly through capping sliding groove, is provided with the rotation axis fixed slot on the capping, can carry out spacing fixed to the top of rotation axis.
As a modification of this embodiment, the first finger clip, the second finger clip, the first sub-finger and the second sub-finger are provided with anti-slip teeth 36.
As an improvement of this embodiment, the advancing mechanism includes a guide seat 49 and a force application tube 50 with one end fixed on the guide seat and the other end extending out of the body, and the outer surface of the guide seat is in sliding fit with the inner hole of the net body driver, so that the guide seat can slide along the inner hole of the net body driver to realize guiding.
Similarly, the force application pipe is also made of plastic or rubber, has certain strength and elasticity, and can drive the guide seat to move.
In this embodiment, the power pump is provided with a control valve 51, which is connected to an external power source 52, and a wire connecting the two is provided through the force application pipe. Thus, the cable is standard, not easy to be worn and more complete.
As a modification of this embodiment, a medium container 30 is further included, one end of the medium container is communicated with the power pump through a pipeline 31, and the other end is fixed to the guide base through a bolt or a screw.
The embodiment also provides a method for taking foreign matters in the digestive tract by adopting the clamp-type foreign matter taking device, which comprises the following steps:
under the guidance of the imaging device, the following operations are performed:
1) delivering the fixation device and the expansion device together to the area near the foreign body in the alimentary tract through the mesh restrictor;
2) the net body driver is moved, the expansion device is moved out of the net body shape limiter, and the net body of the net body restores to the memory shape to expand the digestive tract to form a fixed operation space;
3) moving the fixing device out of the net body driver through the force application pipe, entering the fixing operation space, and opening the first clamping finger and the second clamping finger to clamp and fix the foreign body;
4) recovering the net body driver to reduce the net body to the surface of the foreign matter;
5) and (5) withdrawing the net body shape limiter to finish the foreign body taking out.
Another preferred method is:
and 3, clamping the foreign matters through the first auxiliary clamp and the second auxiliary clamp. The fixing device is suitable for fixing some long foreign matters.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (7)
1. Foreign matter device is got to clamp formula, its characterized in that: comprises a fixing device, an expansion device and an imaging device,
the fixing device comprises a shell, a first push rod, a second push rod, a flexible shaft, a main clamp, a first auxiliary clamp and a second auxiliary clamp, wherein the main clamp comprises a first clamp finger and a second clamp finger,
the shell is a thin shell with a cavity,
the flexible shaft is arranged in the cavity of the shell,
one end of each of the first push rod and the second push rod is provided with a flange which protrudes outwards from the radial direction, a sealing ring which is movably sealed with the inner wall of the cavity of the shell is arranged on the flange, the shell is divided into three mutually independent chambers by the two flanges, the three chambers are communicated with an external hydraulic medium through a power pump, the power pump is electrically connected with an external power supply through a lead,
two ends of the flexible shaft are respectively connected with the two flanges to form an elastic shaft with two ends capable of working in a telescopic way,
the other ends of the first push rod and the second push rod respectively extend out of the shell, the first clamping finger is arranged at the end part of one end of the first push rod extending out of the shell, the second clamping finger is arranged at the end part of one end of the second push rod extending out of the shell,
the first auxiliary clamp is arranged on the first clamping finger, the second auxiliary clamp is arranged on the second clamping finger,
the expansion device comprises a net body, a net body driver and a net body shape limiter, wherein the net body comprises a plurality of net body ribs distributed in a circumferential manner and net films connected among the net body ribs, the net body ribs are made of memory materials, one end of each net body rib is bent outwards along the radial direction of the net body and is shaped into a Z shape, so that the net body is a step body with one big end and one small end, the net body driver is fixed with the small end of the step body, the net body shape limiter is provided with a shape limiting hole for limiting the big end of the step body,
the net body driver is a hollow pipe body, the fixing device is movably arranged in an inner hole of the net body driver through a travelling mechanism,
the imaging device comprises a camera arranged at the front end of the net body shape limiter and a display connected with the camera through a lead.
2. A clamp-type foreign matter removal device according to claim 1, wherein: first vice clamp and the vice clamp of second all include that first pair indicates, the vice finger of second and clamping mechanism, first pair indicates and the vice finger of second all includes clamping part, drive division and sets up the connecting hole between clamping part and drive division, two the connecting hole sets up same rotation axis, makes first pair indicate and the vice finger rotatable coupling of second, clamping mechanism sets up on the drive division, flexible axle includes one section flexible section of being made by spring or rubber strip at least.
3. A clamp-type foreign matter removal device according to claim 2, wherein: clamping mechanism is including setting up the first connecting rod group that indicates one side at first pair and setting up the second connecting rod group that indicates one side at the second pair, first connecting rod group and second connecting rod group all include first connecting rod and pass through pivot swivelling joint's second connecting rod with first connecting rod, and the other end of two first connecting rods is swivelling joint respectively on the drive division of homonymy, and two second connecting rod other ends swivelling joint are on same fixed column, the fixed column is fixed on pressing from both sides and indicating, clamping mechanism still is in including setting up epaxial application of force rope.
4. A clamp-type foreign matter removal device according to claim 3, wherein: still include application of force guiding mechanism, application of force guiding mechanism is in including the fixing base that is nearly font, setting the support of fixing base inner chamber and two guide rolls of setting on the support side by side, nearly word both sides of fixing base are fixed through fastener and clamp finger, the support includes that two are the horizontal plate that sets up from top to bottom, two the parallel and rotatable fixing of guide roll is between two horizontal plates, be provided with the arc wall to the indent on the outer periphery of guide roll, form application of force rope guide way between the two guide roll arc walls.
5. A clamp-type foreign matter removal device according to claim 1, wherein: the net films are of a double-layer structure comprising an inner layer made of high-elasticity polyethylene fibers and an outer layer made of a plastic film.
6. A clamp-type foreign matter removal device according to claim 1, wherein: the outer surface of the net body driver is provided with fixing grooves which correspond to the net body ribs one to one.
7. A clamp-type foreign matter removal device according to claim 1, wherein: the advancing mechanism comprises a guide seat and a force application pipe, one end of the force application pipe is fixed on the guide seat, the other end of the force application pipe extends out of the net body, the guide seat is arranged on the inner hole wall of the net body driver in a sliding mode, and a lead for controlling the power pump to be connected with an external power supply penetrates through the force application pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910369452.XA CN110051414B (en) | 2019-05-05 | 2019-05-05 | Clamp type foreign matter taking device and method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910369452.XA CN110051414B (en) | 2019-05-05 | 2019-05-05 | Clamp type foreign matter taking device and method thereof |
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| CN110051414A CN110051414A (en) | 2019-07-26 |
| CN110051414B true CN110051414B (en) | 2020-05-05 |
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| CN201910369452.XA Expired - Fee Related CN110051414B (en) | 2019-05-05 | 2019-05-05 | Clamp type foreign matter taking device and method thereof |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1449621A1 (en) * | 2001-11-27 | 2004-08-25 | Mitsubishi Denki Kabushiki Kaisha | Electric tweezers |
| CN206463048U (en) * | 2016-11-02 | 2017-09-05 | 王凤燕 | Image-guided lower foreign body in esophagus withdrawing device |
| CN208551976U (en) * | 2017-09-13 | 2019-03-01 | 鹤壁市人民医院 | A kind of ear nose larynx protractor |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2649027Y (en) * | 2003-08-22 | 2004-10-20 | 祁志强 | Endoscope foreign-body protector |
| CN201683998U (en) * | 2010-05-20 | 2010-12-29 | 杭州康基医疗器械有限公司 | Trachea foreign body forceps |
| US20160166268A1 (en) * | 2014-12-11 | 2016-06-16 | Justin Charles TOPPINS | Device for removing a foreign object from a bodily orifice |
| CN107854167A (en) * | 2017-11-29 | 2018-03-30 | 新昌县时利和机械有限公司 | A kind of stomach foreign matter removal device |
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2019
- 2019-05-05 CN CN201910369452.XA patent/CN110051414B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1449621A1 (en) * | 2001-11-27 | 2004-08-25 | Mitsubishi Denki Kabushiki Kaisha | Electric tweezers |
| CN206463048U (en) * | 2016-11-02 | 2017-09-05 | 王凤燕 | Image-guided lower foreign body in esophagus withdrawing device |
| CN208551976U (en) * | 2017-09-13 | 2019-03-01 | 鹤壁市人民医院 | A kind of ear nose larynx protractor |
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| CN110051414A (en) | 2019-07-26 |
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