CN112971869B - Multifunctional cavity biopsy forceps device with circumferential telescopic forceps petals - Google Patents
Multifunctional cavity biopsy forceps device with circumferential telescopic forceps petals Download PDFInfo
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- CN112971869B CN112971869B CN202110354629.6A CN202110354629A CN112971869B CN 112971869 B CN112971869 B CN 112971869B CN 202110354629 A CN202110354629 A CN 202110354629A CN 112971869 B CN112971869 B CN 112971869B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
- A61B10/02—Instruments for taking cell samples or for biopsy
- A61B10/06—Biopsy forceps, e.g. with cup-shaped jaws
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
- A61B10/02—Instruments for taking cell samples or for biopsy
- A61B10/0233—Pointed or sharp biopsy instruments
- A61B10/0266—Pointed or sharp biopsy instruments means for severing sample
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
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Abstract
The invention relates to the field of medical equipment, in particular to a circumferential telescopic clamp-flap type multifunctional cavity biopsy clamp device; the biopsy forceps comprise a handle, an outer sleeve, a hinge joint and a biopsy forceps which are sequentially connected, wherein a pushing mechanism is arranged in the biopsy forceps, the pushing mechanism penetrates through the outer sleeve and is connected with a sliding handle, and the sliding handle can drive the pushing mechanism to move so as to enable the biopsy forceps to be unfolded; the biopsy forceps are internally provided with a shearing mechanism, the handle is provided with a pressing elastic mechanism, and the pressing elastic mechanism can drive the shearing mechanism to cut the biopsy tissue on the side wall of the blood vessel; in the invention, the pushing mechanism is driven to move by the sliding handle, so that the biopsy forceps are unfolded, then the pressing elastic mechanism is pressed, and the shearing mechanism is driven to cut the biopsy tissue on the side wall of the blood vessel, so that the operation is convenient, the practicability is high, and the safety factor is also high.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to a circumferential telescopic clamp-flap type multifunctional cavity biopsy clamp device.
Background
Biopsy forceps are one of the most important and commonly used tools in modern interventional diagnostics and therapy, and are used for obtaining biopsy samples in various lumens of blood vessels, bile ducts, hepatic ducts and the like, and provide pathological basis for diagnosis, and pathological biopsy has been considered as a "gold standard" for tumor diagnosis.
In biopsy tissue sampling procedures of the inner wall of a blood vessel, it is also necessary to take a biopsy through a biopsy forceps, however, during actual procedures, existing biopsy forceps have the following drawbacks:
1. when the biopsy is taken conventionally, the biopsy is taken by the biopsy forceps, so that a series of subsequent reactions such as tissue large-area tearing and inflammation infection are easy to occur, the biopsy tissue which is easy to fall off is searched randomly in a blood vessel through the biopsy, the biopsy tissue can not be found smoothly, a great deal of time is required to be consumed, the labor waste is caused for doctors, the operation time of patients is prolonged, and the decoction is also caused for patients.
2. At present, high-frequency thermal biopsy forceps are available in the market, biopsy tissues are cut and clamped in a high-frequency electrotome mode, the method has the effect of cutting the tissues to a certain extent, but the high-frequency electrotome is adopted to cause a certain burning effect on the tissues, the activity of the biopsy tissues is killed, and burnt biopsy tissue residues remain at the jaw of the biopsy forceps, so that the biopsy forceps are very difficult to take out and clean.
3. The inside of the existing biopsy forceps is provided with a pipeline through the inside of a biopsy forceps tube to infuse liquid medicine into the inside of the biopsy forceps and a tissue area, so that the effect of duplicating treatment on the tissue in the lumen can not be achieved.
Disclosure of Invention
In order to solve the problems, the invention aims to provide the circumferential telescopic clamp-flap type multifunctional cavity biopsy clamp device which drives a pushing mechanism to move through a sliding handle so as to enable a biopsy clamp to be unfolded, then presses a pressing elastic mechanism, and drives a shearing mechanism to cut a blood vessel side wall biopsy tissue, so that the operation is convenient.
The invention aims at realizing the following technical scheme:
the invention provides a circumferential telescopic clamp-flap type multifunctional cavity biopsy forceps device which comprises a handle, an outer sleeve, a hinge joint and biopsy forceps which are sequentially connected, wherein a pushing mechanism for opening the biopsy forceps is arranged in the biopsy forceps, the pushing mechanism penetrates through the outer sleeve and is connected with a sliding handle arranged on the handle, and the sliding handle can drive the pushing mechanism to move so that the biopsy forceps can be unfolded; the biopsy forceps are internally provided with a shearing mechanism for cutting the biopsy tissue on the side wall of the blood vessel, the handle is provided with a pressing elastic mechanism, the pressing elastic mechanism is connected with the shearing mechanism, and the pressing elastic mechanism can drive the shearing mechanism to cut the biopsy tissue on the side wall of the blood vessel;
the biopsy forceps are hinged on the hinged head, and comprise a first forceps flap and a second forceps flap, and a abdication port is arranged in each of the first forceps flap and the second forceps flap; the medical liquid feeding device also comprises a liquid feeding mechanism for conveying medical liquid, wherein the liquid feeding mechanism comprises an inner sleeve and a guide wire.
As an improvement of the invention, the edges of the first clamp valve and the second clamp valve are respectively provided with saw teeth which are uniformly distributed.
As a further improvement of the invention, the root parts of the first clamp valve and the second clamp valve are respectively provided with a ring groove, and elastic tightening belts are arranged in the ring grooves.
As a further improvement of the invention, the pushing mechanism comprises a wedge block, a wedge top and a pushing brace, wherein the wedge block is open, and the wedge top passes through the wedge block through the pushing brace and is connected with the sliding handle.
As a further improvement of the invention, the shearing mechanism comprises a fixing frame piece, a gear fixing piece and a gear driving frame, wherein the fixing frame piece comprises a left frame piece and a right frame piece, the left frame piece and the right frame piece are respectively connected with a left rotating knife and a right rotating knife, the left rotating knife and the right rotating knife are respectively provided with a wide edge section and a narrow edge section, the wide edge section is provided with a sawtooth cutting edge for shearing, the narrow edge section is provided with an arc-shaped rack, the gear fixing piece is hinged with a gear, and the gear is respectively meshed and connected with the gear driving frame and the arc-shaped rack.
As a further improvement of the invention, the left frame piece and the right frame piece are both provided with guide stop blocks, the left rotating knife and the right rotating knife are both provided with guide grooves, and the guide stop blocks are clamped in the guide grooves.
As a further improvement of the invention, a gear sliding port connected with the gear in a meshed manner is arranged in the gear driving frame, a rack is arranged on one side of the gear sliding port, a guide bar is arranged on the other side of the gear sliding port, and a ring Zhou Daocao for clamping the guide bar is arranged on the gear.
As a further improvement of the invention, the gear drive frame is connected with a movable push-pull bar, and the movable push-pull bar passes through the outer sleeve and presses the elastic mechanism.
As a further improvement of the invention, the pressing elastic mechanism comprises a fixed shell, a sliding block, a pressing sheet and a top flap, wherein a sliding groove is arranged on the outer sleeve, the fixed shell is connected in the sliding groove, a top plate is arranged in the fixed shell, a spring is arranged between the sliding block and the top plate, the pressing sheet is hinged with the top flap, and the top flap is connected with the sliding block.
As a further improvement of the invention, the outer sleeve and the hinge head are provided with round hole channels, the round hole channels are internally provided with inner sleeves, and the guide wires are led into the inner sleeves.
In the invention, the pushing mechanism is driven to move by the sliding handle, so that the biopsy forceps are unfolded, then the pressing elastic mechanism is pressed, and the shearing mechanism is driven to cut the biopsy tissue on the side wall of the blood vessel, so that the operation is convenient, the practicability is high, and the safety factor is also high.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of a biopsy forceps according to the present invention;
FIG. 3 is a second schematic structural view of the biopsy forceps of the invention;
FIG. 4 is a schematic view of a third embodiment of a biopsy forceps of the invention;
FIG. 5 is an exploded schematic view of a biopsy forceps of the invention;
FIG. 6 is a second schematic explosion view of the bioptome of the present invention;
FIG. 7 is a schematic view of a shearing mechanism according to the present invention;
FIG. 8 is a second schematic structural view of the shearing mechanism of the present invention;
FIG. 9 is a schematic diagram of a shear mechanism according to the present invention;
FIG. 10 is a schematic diagram showing the connection of gears to a gear drive frame according to the present invention;
FIG. 11 is a second schematic diagram of the connection of the gear to the gear drive frame of the present invention;
FIG. 12 is a schematic diagram showing the connection of gears in the shear mechanism of the present invention;
FIG. 13 is a second schematic diagram of the connection of gears in the shear mechanism of the present invention;
FIG. 14 is a third schematic diagram of the connection of gears in the shear mechanism of the present invention;
FIG. 15 is a schematic diagram of a shear mechanism according to the present invention;
FIG. 16 is a schematic view of a pushing mechanism according to the present invention;
FIG. 17 is a second schematic structural view of the pushing mechanism of the present invention;
FIG. 18 is a schematic view of a fixing frame sheet according to the present invention;
FIG. 19 is a schematic view of the structure of the right frame piece of the present invention;
FIG. 20 is a schematic diagram of a pressing spring mechanism according to the present invention;
FIG. 21 is a second schematic diagram of the pressing elastic mechanism of the present invention;
fig. 22 is a cross-sectional view of the pressing elastic mechanism of the present invention;
wherein the reference numerals are as follows: 1-handle, 11-slide handle, 2-outer cannula, 3-articulation, 4-biopsy forceps, 41-first jaw, 42-second jaw, 43-relief, 44-serration, 45-ring groove, 46-elastic cinching strap, 5-pushing mechanism, 51-wedge block, 52-wedge jack, 53-pushing pull-tab, 6-shearing mechanism, 61-mount tab, 611-left mount tab, 612-right mount tab, 613-broadside segment, 614-narrow side segment, 615-guide stop, 616-serration edge, 617-arc rack, 62-gear fixing tab, 621-gear, 622-ring Zhou Daocao, 63-gear drive frame, 631-left rotating knife, 632-right rotating knife, 633-gear sliding port, 634-moving push-tab, 635-guide slot, 636-rack, 637-guide bar, 7-pressing elastic mechanism, 71-fixed housing, 72-sliding block, 73-sheeting, 74-top tab, 75-sliding slot, 76-top plate, 77-spring, 8-passing mechanism, 82-guide wire, 81-guide wire.
Detailed Description
In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
As shown in fig. 1 to 22, the multifunctional cavity biopsy forceps device with the circumferential telescopic forceps petals comprises a handle 1, an outer sleeve 2, a hinge joint 3 and a biopsy forceps 4 which are sequentially connected.
As shown in fig. 1, a pushing mechanism 5 for opening the biopsy forceps 4 is arranged in the biopsy forceps 4, the pushing mechanism 5 passes through the outer sleeve 2 and is connected with a sliding handle 11 arranged on the handle 1, and the sliding handle 11 can drive the pushing mechanism 5 to move so as to enable the biopsy forceps 4 to be unfolded.
The biopsy forceps 4 are also internally provided with a shearing mechanism 6 for cutting the biopsy tissue of the blood vessel side wall, the handle 1 is provided with a pressing elastic mechanism 5, the pressing elastic mechanism 5 is connected with the shearing mechanism 6, and the pressing elastic mechanism 5 can drive the shearing mechanism 6 to cut the biopsy tissue of the blood vessel side wall.
As shown in fig. 2 to 6, in the invention, a biopsy forceps 4 is hinged on a hinge joint 3, the biopsy forceps 4 comprises a first forceps flap 41 and a second forceps flap 42, a yielding opening 43 is arranged in each of the first forceps flap 41 and the second forceps flap 42, saw teeth 44 which are uniformly distributed are arranged at the edges of each of the first forceps flap 41 and the second forceps flap 42, annular grooves 45 are arranged at the root parts of each of the first forceps flap 41 and the second forceps flap 42, and elastic tightening belts 46 are arranged in the annular grooves 45; specifically, the outer sleeve 2 is an elongated circular tube, the handle 1 is provided with a sliding handle 11 capable of guiding sliding, the front end of the outer sleeve 2 is coaxially and fixedly provided with a hinge joint 3, the hinge joint 3 is hinged with a biopsy forceps 4, the biopsy forceps 4 are formed by hinging a first forceps flap 41 and a second forceps flap 42 with each other, saw teeth 44 which are uniformly distributed in the front-back direction are designed at the edges of the first forceps flap 41 and the second forceps flap 42, notches with certain depth and width are arranged in the middle area of the upper side edges of the first forceps flap 41 and the second forceps flap 42 and are used as yielding openings 43, the yielding openings of the first forceps flap 41 and the second forceps flap 42 are opposite, when the first forceps flap 41 and the second forceps flap 42 are mutually closed, two opposite yielding openings can enable the inner side and outer sides of the forceps flaps to be provided with channel openings with certain area sizes, and the channel openings clamp protruding tissues on the inner side walls of blood vessels into the first forceps flap 41 and the second forceps flap 42 when the biopsy forceps 4 are closed. Two rings of ring grooves 45 are formed in the circumferential outer walls of root areas of the first forceps flap 41 and the second forceps flap 42 along the front-back direction, certain intervals are formed between the two rings of ring grooves 45 in the front-back direction, elastic tightening belts 46 are sleeved in the inner portions of the ring grooves 45, the ring grooves 45 play a role in clamping the elastic tightening belts 46 to prevent sliding, the elastic tightening belts 46 have elastic stretching characteristics, and the elastic tightening belts are sleeved on the peripheries of the ring grooves 45 in an elastic stretching state, so that the first forceps flap 41 and the second forceps flap 42 of the biopsy forceps 4 are always in a closed state under the elastic tightening effect of the front and back elastic tightening belts 46 when no external force acts.
As shown in fig. 7 to 9, in the present invention, the shearing mechanism 6 includes a fixing frame piece 61, a gear fixing piece 62 and a gear driving frame 63, the fixing frame piece 61 includes a left frame piece 611 and a right frame piece 612, the left frame piece 611 and the right frame piece 612 are respectively connected with a left rotating blade 631 and a right rotating blade 632, the left rotating blade 631 and the right rotating blade 632 are respectively provided with a wide side section 613 and a narrow side section 614, the wide side section 613 is provided with a sawtooth cutting edge 616 for shearing, the narrow side section 614 is provided with an arc-shaped rack 617, the gear fixing piece 62 is hinged with a gear 621, and the gear 621 is respectively engaged with the gear driving frame 63 and the arc-shaped rack 617.
Specifically, the front end of the joint 3 is fixedly connected with a fixing frame piece 61, the fixing frame piece 61 is divided into a left frame piece 611 and a right frame piece 612 which are distributed symmetrically left and right, the left frame piece 611 and the right frame piece 612 are arc pieces with a certain radian, a certain width gap is formed between the lower edges of the left frame piece 611 and the right frame piece 612, and the left frame piece 611 and the right frame piece 612 which are close to the root area are fixedly connected and fixedly connected with the joint 3 through the root. A gear fixing piece 62 is fixed at the middle position of the lower edge gap between the left frame piece 611 and the right frame piece 612, and the gear fixing piece 62 is fixed between the gaps between the left frame piece 611 and the right frame piece 612 like a cross beam.
In the invention, the left frame piece 611 and the right frame piece 612 are provided with guide stoppers 615, the left rotating knife 631 and the right rotating knife 632 are provided with guide grooves 635, and the guide stoppers 615 are clamped in the guide grooves 635; specifically, two guide stoppers 615 protruding outwards are respectively disposed on the outer side surfaces of the left frame piece 611 and the right frame piece 612 of the fixing frame piece 61, the section of the guide stoppers 615 is T-shaped, the two guide stoppers 615 of the left frame piece 611 are axially close to the front end, the two guide stoppers 616 of the right frame piece 612 are axially close to the rear end, and the two guide stoppers of the same side frame piece are both located at the same axial depth. The left frame blade 611 and the right frame blade 612 are respectively connected with a left rotating blade 631 and a right rotating blade 632 through guide block clamping positions, the left rotating blade 631 and the right rotating blade 632 are of an arc-shaped blade structure as a whole, the overall outline is similar to a 7-shaped right-angle edge structure, namely, a region with a wider width along the axial direction is a wide edge 613, a region with a narrower axial width is a narrow edge 614, the lower edge is integrally connected with the region with a narrower axial width, guide grooves 635 with a certain radian are formed in the left rotating blade 631 and the right rotating blade 632 along the circumferential direction, and the left rotating blade 631 and the right rotating blade 632 are mutually clamped with the corresponding guide blocks 615 through the guide grooves 635, so that the left rotating blade 631 and the right rotating blade 632 can only be jointed with the arc outer wall of the frame blade to rotate, and cannot move relatively along the axial direction. The upper edges of the wide edge sections 613 of the left rotating blade 631 and the right rotating blade 632 are designed to be saw-tooth cutting edges 616, and the saw-tooth cutting edges 616 are provided with cutting edges and saw teeth. The right-angle side end edges of the narrow edge sections 614 of the left rotating blade 631 and the right rotating blade 632 are designed to be arc racks 617 which are uniformly arranged.
The structures of the left rotating knife 631 and the right rotating knife 632 are the structures described above, the saw-tooth cutting edges 616 of the left rotating knife 631 and the right rotating knife 632 are all located at the upper positions and are located at the upper positions of the abdication openings 43, the arc racks 617 of the left rotating knife 631 and the right rotating knife 632 face each other, and a certain interval is reserved between the two arc racks 617. A gear 621 is provided below the gear fixing piece 62 to be hinged with the gear fixing piece 62, and the gear 621 is simultaneously engaged with the arc-shaped rack 617 in the front-rear direction, respectively. When the gear 621 rotates, the left rotating blade 631 and the right rotating blade 632 can be driven to synchronously rotate in opposite directions or in opposite directions under the arc limit of the guide stopper 615 of the fixing frame piece 62. The saw tooth cutting edges 616 at the upper edges of the left rotating blade 631 and the right rotating blade 632 are respectively at the upper shearing surfaces of the cutting edges when the saw tooth cutting edges are mutually close to each other in opposite directions, so that the left rotating blade 631 and the right rotating blade 632 have cutting effects.
As shown in fig. 10 and 11, in the present invention, a gear sliding port 633 engaged with a gear 621 is provided in a gear driving frame 63, a rack 636 is provided on one side of the gear sliding port 633, a guide 637 is provided on the other side of the gear sliding port 633, and a ring Zhou Daocao 622 for the guide 637 to be engaged is provided on the gear 621; the gear driving frame 63 is connected with the movable push-pull strip 634, and the movable push-pull strip 634 passes through the outer sleeve 2 and presses the elastic mechanism 7; specifically, the thickness of the gear 621 is greater than the thicknesses of the left rotating blade 631 and the right rotating blade 632, and when the gear 621 is engaged with the arc-shaped rack 617, the bottom surface of the gear 621 is flush with the bottom of the engagement of the left rotating blade 631 and the right rotating blade 632, so that the upper end of the gear 621 extends a certain height with respect to the upper end of the arc-shaped rack 617. The gear section outside of the area above the arc gear 617 is sleeved with a gear driving frame 63, and the gear driving frame 63 is positioned at the gear section of the area between the gear fixing piece 62 and the arc rack 617.
The gear driving frame 63 has a rectangular outline, an oblong gear sliding opening 633 is provided in an intermediate area inside the gear driving frame 63, and a gear 621 is fitted inside the gear sliding opening 633 and is movable back and forth inside. The rack 636 structure can be meshed with the gear 621, the convex guide bar 637 is arranged on the straight side wall of the other side along the trend of the straight side wall, meanwhile, the ring Zhou Daocao 622 which is matched with the guide bar 637 is arranged on the circumference of the gear 621, so that the gear driving frame 63 can slide along the front-back direction under the guiding action of the guide bar 637 and the ring Zhou Daocao 622, and the gear can be driven to rotate by the rack of the straight side wall in the sliding process of the gear driving frame 63. The rear end of the gear driving frame 63 is fixedly connected with a movable push-pull strip 634, the movable push-pull strip 634 passes through the hinge joint 3 backwards, a channel in the pipe wall of the outer sleeve 2 extends backwards to the handle 1 at the rear side, the movable push-pull strip 634 has certain strength, and the front end of the gear driving frame 63 can be driven to move forwards and backwards during forward and backward pushing.
As shown in fig. 16 and 17, in the present invention, the pushing mechanism 5 includes a wedge block 51, a wedge plug 52 and a pushing brace 53, the wedge block 51 is open, and the wedge plug 52 is connected with the sliding handle 11 through the wedge block 51 by the pushing brace 53; specifically, the inwardly protruding wedge blocks 51 are integrally and fixedly provided in the root inner side region of the biopsy forceps 4, and the protruding length of the wedge blocks 51 toward the inner side is reduced from the root at a time toward the front, so that the two wedge blocks 51 integrally form an open-like structure. The middle area of the front end of the hinge joint 3 is provided with a wedge top 52, the outer diameter of the wedge top 52 is sequentially increased from the root of the rear end to the front end, the overall profile is similar to a conical structure, the rear end of the wedge top 52 is fixedly connected with two pushing pull strips 53 near the upper side and the lower side, the pushing pull strips 53 extend backwards to the rear end handle 1 in a channel in the tube wall of the outer sleeve 2, and the wedge top 52 can be driven to move forwards and backwards by pushing and pulling the pushing pull strips 53; when wedge head 52 is located in front of the middle area of two wedge blocks 51, wedge head 52 is not in contact with wedge blocks 51, and at this time, two jaws of biopsy forceps 4 are in a closed state.
When the wedge top 52 is driven to pull backwards through the pushing brace 53, the conical wedge top 52 with thin back and thick front moves backwards at the open channel between the two wedge blocks 51, and the wedge blocks 51 on the two sides of the wedge top 52 gradually play an external propping role in the moving process, so that the two forceps petals of the biopsy forceps 4 are gradually opened; when the pushing brace 53 drives the wedge ejector 52 to gradually separate from the wedge block, under the action of the elastic tightening belt 46, the first clamp flap 41 and the second clamp flap 42 gradually close in the forward moving process of the wedge ejector 52, and the two parallel pushing braces 53 are connected with the sliding handle 11 at the rear end handle section of the outer sleeve 2, and the sliding handle 11 can drive the wedge ejector 52 to move forward and backward by sliding the sliding handle forward and backward along the axial direction.
As shown in fig. 20 to 22, in the present invention, the pressing elastic mechanism 7 includes a fixed housing 71, a sliding block 72, a pressing piece 73 and a top flap 74, a slide groove 75 is provided on the outer sleeve 2, the fixed housing 71 is connected in the slide groove 75, a top plate 76 is provided in the fixed housing 71, a spring 75 is provided between the sliding block 72 and the top plate 76, the pressing piece 73 is hinged with the top flap 74, and the top flap 74 is connected with the sliding block 72; specifically, the movable push-pull strip 634 extends backwards from the wall of the outer sleeve 2 to the rear side handle 11 and is connected with a pressing elastic push-pull mechanism 7, a chute 75 with a certain depth is arranged at the wall of the outer sleeve 2 pressing the elastic push-pull mechanism 7, the chute 75 has a certain length along the axial front-rear direction, a fixed shell 71 is fixed inside the chute 75, a sliding block 72 is sleeved inside the fixed shell 71, the fixed shell 71 plays a role in clamping and guiding the sliding block 72, the rear end of the movable push-pull strip 634 is fixedly connected with the sliding block 72, a vertical top plate 76 is integrally and fixedly arranged inside the fixed shell 71, a spring 77 is connected between the top plate 76 of the fixed shell 71 and the sliding block 72, a pressing sheet 73 and a top flap 74 are synchronously hinged outside the fixed shell 71, the top flap 74 is positioned in the middle area of the pressing sheet 73 and hinged on the same hinge shaft, a certain included angle is formed between the top flap 74 and the pressing sheet 73, the top flap 74 is pressed by the top side of the pressing sheet 73, the top flap 72 is provided with the top angle used for bearing the top pressing action of the top flap 72.
When the pressing piece 73 is pressed upwards, the pressing piece 73 pushes the top flap 74 to enable the top flap 74 to deflect in angle, so that the sliding block 72 slides backwards in the sliding groove 75 through pushing the top angle of the sliding block 72, the gear driving frame 63 is driven to move backwards through moving the push-pull strip 634, the gear 621 is driven to rotate, the left rotating knife 631 and the right rotating knife 632 are driven to rotate in opposite directions, and finally the shearing and cutting effect of the two sawtooth cutting edges 616 is achieved. In this state, the length of the spring 77 is compressed to be short, and the whole is in a compressed state. When the pressing piece 73 is stopped, the spring 77 resets to push the sliding block 72 to move forward, so that the gear driving frame 63 is driven to move forward synchronously by moving the push-pull strip 634, the left rotating knife 631 and the right rotating knife 632 are driven to rotate in opposite directions synchronously by the gear 621, the two saw tooth cutting edges 616 are far away from each other, and finally the distance between the two saw tooth cutting edges 616 is larger than the width of the biopsy channel opening formed by the two clamp flap upside abdicating openings 43.
In the invention, in order to introduce medicine liquid for auxiliary treatment, the medicine liquid treatment device comprises a liquid introducing mechanism 8 for conveying the medicine liquid, wherein the liquid introducing mechanism 8 comprises an inner sleeve 81 and a guide wire 82, circular hole channels are arranged on the outer sleeve 2 and the hinge joint 3, the inner sleeve 81 is arranged in the circular hole channels, and the guide wire 82 is led into the inner sleeve 81; specifically, the inner sleeve 81 is sleeved inside the outer sleeve 2 in a penetrating manner, round hole channels through which the inner sleeve 81 can penetrate are formed in the middle areas of the hinge joint 3 and the wedge plug 52, the front end of the inner sleeve 81 can penetrate through the hinge joint 3 and the wedge plug 52 to be led into the forceps petals, medicine liquid can be led into for auxiliary treatment when the biopsy forceps 4 are used for cutting and clamping biopsy, and a port is formed in the rear end of the handle 11 for the inner sleeve 81 to be inserted into the outer sleeve 2.
When the biopsy tissue is required to be cut and clamped on the side wall of a blood vessel in a patient through the biopsy forceps, two forceps petals of the biopsy forceps 4 are in a closed state in an initial state, and a saw tooth cutting edge 616 of a left rotating knife 631 and a right rotating knife 632 are also in an open state; for the biopsy tissue which cannot be clamped and fallen normally, the upper side of the biopsy forceps 4 is close to the biopsy tissue, the sliding handle 11 is loosened, the first forceps flap 41 and the second forceps flap 42 are closed under the elastic tightening action of the elastic tightening belt 46, and at the moment, the biopsy forceps 4 are clamped at the passage opening at the upper end of the forceps flaps; pressing the pressing piece 73, the pressing piece 73 drives the sliding block 72 to slide backwards through the top flap 74, so that the gear driving frame 63 is driven to move backwards through the movement of the pushing and pulling strip 634, the gear 621 is driven to rotate so that the left rotating knife 631 and the right rotating knife 632 rotate in opposite directions, the biopsy tissue clamped at the channel openings on the upper sides of the first forceps flap 41 and the second forceps flap 42 is sheared and cut, the cut biopsy tissue is stored in the biopsy forceps 4, the biopsy tissue cutting effect is achieved, and the biopsy tissue which is easy to fall off through clamping can be clamped off through saw teeth of the first forceps flap 41 and the second forceps flap 42.
The invention has the innovative technical points and the beneficial effects that:
1. the saw teeth 44 of the first forceps flap 41 and the second forceps flap 42 not only can clamp and collect the biopsy tissue which is easy to fall off from the inner wall of the blood vessel, but also can clamp and easily cut the biopsy tissue which is difficult to fall off into the inside of the passage port by the rotating knife structure arranged inside the first forceps flap 41 and the second forceps flap 42, thereby being convenient to operate, having obvious effect and greatly improving efficiency.
2. The double rotating blades all adopt synchronous opposite or reverse arc circumference rotation, and the whole shape adopts a circular arc piece '7' -shaped right angle section, the upper edge of the wide edge section 613 is guaranteed to have wider sawtooth cutting edges 616, more cutting lengths can be realized, the arc racks 617 of the left rotating blade 631 and the right rotating blade 632 can be meshed with the gear 621 at the same time, the guide check blocks 615 distributed along the arc direction are matched with the arc guide of the left rotating blade 631 and the right rotating blade 632, the gear 621 can synchronously drive the double rotating blades to rotate opposite or reverse arc circumference all the time, the cutting stability of the double rotating blades is guaranteed, meanwhile, the sawtooth cutting edges 616 have the design of sawtooth and cutting edges, the double rotating blades can also generate large shearing force generated by larger oblique sawtooth during opposite circumference rotation cutting, the biopsy tissue can be smoothly cut, the situation that the biopsy tissue cannot be cut off can not occur, meanwhile, the fixed clamping pieces adopt the circular arc piece type structure, the fixed clamping pieces can enable the inner walls of the left rotating blades to be adhered to each other as far as possible, and the space of the middle area can be kept so that the biopsy tissue can be clamped more closely.
3. The gear 621 rotates under the sliding action of the gear driving frame 63, one side of the inside of the gear driving frame 63 is provided with a guide bar 637 matched with a ring Zhou Daocao 622 of the gear 621, so that the gear driving frame 63 can slide in a guiding way, the rack 636 arranged on the other side of the inside of the gear driving frame 63 can drive the gear 621 in the sliding process, the structural rings are mutually buckled and interdependently, the rotating stability of the gear 621 is ensured, and the guiding condition of the front and back movement of the gear driving frame 63 is solved; on the basis of guaranteeing the functionality, the space occupied by the structure is reduced to the greatest extent, the availability of the internal space of the forceps valve is guaranteed, and more tissues can be clamped to the greatest extent.
4. The rear end of the pushing brace 53 is connected with the fixed shell 71 through the pressing elastic push-pull mechanism 7, the top flap 74 is hinged with the pressing sheet 73, the spring 77 is arranged in the pushing brace, the double-rotating knife can be reset and opened after being cut, the pressing sheet 73 is hinged with the top flap 74, the top flap 74 supports the sliding block 72, the simple operation of pressing the pressing sheet 73 can be achieved, and the double-rotating knife cutting process is completed, so that the operation is greatly simplified.
5. The wedge piece 51 that biopsy pincers 4 inner wall set up can reach open effect through wedge top 52 jack-up, the cooperation, the elasticity of cooperation double-barreled tightening belt 46 simultaneously can play the effect that closes the reset to the pincers lamella, not only can reach the effect that opens and shuts that has the reset function, can go into inside sleeve pipe 81 through wedge top 52 simultaneously, reach the injection liquid medicine purpose, both play the treatment effect to the biopsy tissue that is cut, can guarantee the activity of cutting part biopsy tissue again, reduce the culture period before the biopsy tissue diagnosis to a certain extent, the progress of diagnosing has been accelerated.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (8)
1. The multifunctional cavity biopsy forceps device is characterized by comprising a handle, an outer sleeve, a hinge joint and a biopsy forceps which are sequentially connected, wherein a pushing mechanism for opening the biopsy forceps is arranged in the biopsy forceps, the pushing mechanism penetrates through the outer sleeve and is connected with a sliding handle arranged on the handle, and the sliding handle can drive the pushing mechanism to move so that the biopsy forceps can be unfolded; the biopsy forceps are characterized in that a shearing mechanism for cutting the biopsy tissue on the side wall of the blood vessel is further arranged in the biopsy forceps, a pressing elastic mechanism is arranged on the handle and connected with the shearing mechanism, and the pressing elastic mechanism can drive the shearing mechanism to cut the biopsy tissue on the side wall of the blood vessel;
the shearing mechanism comprises a fixing frame piece, a gear fixing piece and a gear driving frame, wherein the fixing frame piece comprises a left frame piece and a right frame piece, the left frame piece and the right frame piece are respectively connected with a left rotating knife and a right rotating knife, the left rotating knife and the right rotating knife are respectively provided with a broadside section and a narrow side section, the broadside section is provided with a sawtooth cutting edge for shearing, the narrow side section is provided with an arc-shaped rack, the gear fixing piece is hinged with a gear, and the gear is respectively meshed and connected with the gear driving frame and the arc-shaped rack;
the left frame piece and the right frame piece are respectively provided with a guide stop block, the left rotating knife and the right rotating knife are respectively provided with a guide groove, and the guide stop blocks are clamped in the guide grooves; the left frame piece and the right frame piece are arc pieces with radian.
2. The multifunctional cavity biopsy forceps device of claim 1, wherein the biopsy forceps are hinged to the hinge head, the biopsy forceps comprise a first forceps flap and a second forceps flap, abdicating ports are formed in the first forceps flap and the second forceps flap, and saw teeth which are uniformly distributed are arranged on edges of the first forceps flap and the second forceps flap.
3. The circumferential telescopic jaw multifunctional luminal biopsy forceps device of claim 2 wherein the root portions of the first and second jaws are each provided with a circumferential groove, and an elastic tightening band is disposed in the circumferential groove.
4. The circumferential telescopic jaw multifunctional cavity biopsy forceps device of claim 3, wherein the pushing mechanism comprises a wedge block, a wedge plug and a pushing brace, the wedge block is in an open shape, and the wedge plug passes through the wedge block through the pushing brace and is connected with the sliding handle.
5. The multifunctional cavity biopsy forceps device of claim 4, wherein a gear sliding port in meshed connection with the gear is arranged in the gear driving frame, a rack is arranged on one side of the gear sliding port, a guide bar is arranged on the other side of the gear sliding port, and a ring Zhou Daocao for the guide bar to be clamped in is arranged on the gear.
6. The multifunctional cavity biopsy forceps device of claim 5, wherein the gear drive frame is connected with a movable push-pull bar, and the movable push-pull bar passes through the outer sleeve and the pressing elastic mechanism.
7. The multifunctional cavity biopsy forceps device of claim 6, wherein the pressing elastic mechanism comprises a fixed shell, a sliding block, a pressing sheet and a top flap, the outer sleeve is provided with a sliding groove, the fixed shell is connected in the sliding groove, a top plate is arranged in the fixed shell, a spring is arranged between the sliding block and the top plate, the pressing sheet is hinged with the top flap, and the top flap is connected with the sliding block.
8. The multifunctional cavity biopsy forceps device of claim 1, further comprising a liquid passing mechanism for conveying liquid medicine, wherein the liquid passing mechanism comprises an inner sleeve and a guide wire, a circular hole channel is arranged on the outer sleeve and the hinge joint, an inner sleeve is arranged in the circular hole channel, and the guide wire is led into the inner sleeve.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010653725.6A CN111658023A (en) | 2020-07-08 | 2020-07-08 | Peripheral telescopic forceps flap type multifunctional cavity biopsy forceps device |
| CN2020106537256 | 2020-07-08 |
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| CN112971869A CN112971869A (en) | 2021-06-18 |
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| CN202010653725.6A Pending CN111658023A (en) | 2020-07-08 | 2020-07-08 | Peripheral telescopic forceps flap type multifunctional cavity biopsy forceps device |
| CN202110354629.6A Active CN112971869B (en) | 2020-07-08 | 2021-04-01 | Multifunctional cavity biopsy forceps device with circumferential telescopic forceps petals |
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| CN202010653725.6A Pending CN111658023A (en) | 2020-07-08 | 2020-07-08 | Peripheral telescopic forceps flap type multifunctional cavity biopsy forceps device |
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| CN113413233A (en) * | 2021-06-18 | 2021-09-21 | 河南中医药大学第一附属医院 | Injection needle for heart liquid perfusion of small animals |
| CN114343742B (en) * | 2021-12-28 | 2022-11-11 | 湖南朗开医疗科技有限公司 | Continuous multitime sampling bronchoscope biopsy forceps |
| CN114469183B (en) * | 2022-01-13 | 2024-04-26 | 刘玉 | Gynaecology and obstetrics is with interior sample analytical equipment that goes into |
| CN115590677A (en) * | 2022-10-20 | 2023-01-13 | 微创视神医疗科技（上海）有限公司（Cn） | Trabecular meshwork cutting device |
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| Publication number | Publication date |
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| CN111658023A (en) | 2020-09-15 |
| CN112971869A (en) | 2021-06-18 |
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