CN115137412A - Biopsy forceps for visual endoscope - Google Patents
Biopsy forceps for visual endoscope Download PDFInfo
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- CN115137412A CN115137412A CN202110342230.6A CN202110342230A CN115137412A CN 115137412 A CN115137412 A CN 115137412A CN 202110342230 A CN202110342230 A CN 202110342230A CN 115137412 A CN115137412 A CN 115137412A
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- biopsy forceps
- forceps head
- biopsy
- guide wire
- forceps
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- 238000001574 biopsy Methods 0.000 title claims abstract description 91
- 230000000007 visual effect Effects 0.000 title claims abstract description 11
- 238000003780 insertion Methods 0.000 claims abstract description 26
- 230000037431 insertion Effects 0.000 claims abstract description 26
- 239000000523 sample Substances 0.000 claims abstract description 22
- 238000005070 sampling Methods 0.000 claims abstract description 10
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 239000002184 metal Substances 0.000 claims description 26
- 230000003902 lesion Effects 0.000 claims description 8
- 238000012800 visualization Methods 0.000 claims description 8
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 210000000621 bronchi Anatomy 0.000 abstract description 16
- 238000001514 detection method Methods 0.000 abstract description 9
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- 210000004072 lung Anatomy 0.000 abstract description 2
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- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000036285 pathological change Effects 0.000 description 2
- 231100000915 pathological change Toxicity 0.000 description 2
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- 206010028980 Neoplasm Diseases 0.000 description 1
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Classifications
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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
- A61B10/04—Endoscopic instruments
Abstract
The invention discloses a biopsy forceps for a visual endoscope, which comprises an outer sheath tube, a biopsy forceps body and a lens component body, wherein at least one hollow cavity channel is formed in the inner part of the outer sheath tube in a penetrating manner along the axial direction; the biopsy forceps body comprises a biopsy forceps head, a first insertion part and an operation part, wherein the biopsy forceps head and the operation part are respectively connected to two ends of the first insertion part; the lens component body comprises a handheld part, a second insertion part and a miniature camera probe which are sequentially connected, and the miniature camera probe and the second insertion part can be movably inserted into the hollow cavity. The direct-view detection instrument can reach the bronchus with the diameter smaller than 4mm, is close to the periphery of the lung, and can perform direct-view detection on the focus in the tube cavity, and the sampling process has direct-view property and pertinence.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a biopsy forceps for a visual endoscope.
Background
With the widespread use of endoscopic techniques, physicians began using endoscopes to sample the living tissues of the digestive tract and respiratory tract, providing direct evidence for disease diagnosis. Biopsy forceps are a simple device for diagnosing and treating diseases by grasping mucous membranes or tissues on the inner surface of a cavity. In the field of respiratory intervention, due to the improvement of the technology and the reduction of the cost of raw materials, the biopsy forceps are mostly disposable, are ready-to-use and disposable, are used after ethylene oxide sterilization, and are widely used in the operation process of clinical endoscope diagnosis and treatment.
The structure of the present biopsy forceps is shown in fig. 1, and includes an outer sleeve 3 '(the diameter is 1.5-2 mm), a biopsy forceps head 4' (1.3 mm-6 mm), a guide wire 2 '(100 mm), and an attached hand ring 1', etc., and the working principle is as follows: under the action of the guide wire 2', one end of the biopsy forceps head 4' is inserted into a human body through the insertion part of the bronchoscope, and when the biopsy forceps head reaches a lesion point, the biopsy forceps head 4 'is controlled to open and close through the hand ring 1' to take a proper amount of sample tissues for subsequent pathological research. However, in a conventional bronchoscope examination, the outer diameter of an adult ordinary bronchoscope is 4mm, and the farthest reached position is an opening of a segmental bronchus, so that the range of the existing bronchoscope which can be viewed directly is limited to the segmental bronchus, and intracavity lesions such as neoplasms, ulcers and even small foreign matters from the segmental bronchus to the segmental bronchus (a bronchus with the diameter of 2-4 mm) cannot be viewed directly, so that the existing biopsy forceps cannot be used for performing direct-view detection when sampling in the bronchus below the segmental bronchus, cannot be used for clearly judging whether lesions exist at the position where a biopsy forceps head reaches, and has blindness in the sampling process, thereby reducing the accuracy of the detection effect.
Disclosure of Invention
In order to solve the problems in the background art, the invention provides a biopsy forceps for a visual endoscope, which can reach a bronchus with a diameter of less than 4mm, approach the peripheral part of a lung, perform direct-view detection on a focus in a tube cavity, and have better direct-view property and pertinence in a sampling process.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a biopsy forceps for a visual endoscope, which comprises an outer sheath tube, a biopsy forceps body and a lens component body, wherein at least one hollow cavity channel penetrates through the inner part of the outer sheath tube along the axial direction, and the biopsy forceps body and the lens component body can be movably arranged in the hollow cavity channel in a penetrating manner;
the biopsy forceps body comprises a biopsy forceps head, a first insertion part and an operation part, wherein the biopsy forceps head and the operation part are respectively connected to two ends of the first insertion part, the biopsy forceps head and the first insertion part can be movably inserted into the hollow cavity, the operation part is positioned on the outer side of the hollow cavity, and the biopsy forceps head is controlled by the operation part to open and close for sampling;
the lens component body comprises a handheld portion, a second inserting portion and a miniature camera probe which are sequentially connected, and the miniature camera probe and the second inserting portion can be movably inserted into the hollow cavity.
The improved structure is characterized in that the first inserting portion comprises a guide wire and a metal control wire, one end of the guide wire is coaxially connected with a forceps head seat, an expansion bracket is arranged on the inner side wall of the forceps head seat in a sliding mode, the top of the expansion bracket is connected with a biopsy forceps head, the end of the biopsy forceps head is rotatably connected onto the forceps head seat, the guide wire is internally of a hollow structure, the metal control wire penetrates through the hollow part inside the guide wire in a sliding mode, one end of the metal control wire penetrates out of the end of the guide wire and is connected with the bottom of the expansion bracket, and the other end of the metal control wire penetrates out of the other end of the guide wire and is connected with the operating part. Nonrust steel pipe can be chooseed for use to the metal control line, during the use, through setting up the metal control line, can play the promotion guide effect to the seal wire that has flexible structure for the seal wire drives biopsy binding clip and removes in the cavity chamber way of sheath pipe inside orientation more easily, moves at the inside cavity position of seal wire through operation portion control metal control line, thereby drives the expansion bracket bottom and slides from top to bottom in binding clip seat inside, and then steerable biopsy binding clip opens and shuts, pincerses to the tissue of specific site department and gets.
The biopsy forceps head is further improved in that the biopsy forceps head comprises a first forceps head body and a second forceps head body, a clamping space in the upper portion of the first forceps head body and a clamping space in the upper portion of the second forceps head body are arranged oppositely and can be combined to form a clamping space used for clamping tissues at a lesion part, the lower portions of the first forceps head body and the second forceps head body are rotatably connected to the forceps head seat, and the bottoms of the first forceps head body and the second forceps head body are respectively connected with the top of the telescopic frame. The metal control line is connected with the first binding clip body and the second binding clip body through the expansion bracket in a transmission mode, so that the first binding clip body and the second binding clip body can be controlled to rotate relative to the binding clip seat through the operation portion, and therefore the first binding clip body and the second binding clip body can be opened and closed to take samples.
The improved structure of the biopsy forceps is characterized in that the operating portion comprises a handle, a sliding ring guide pipe and a sliding ring, the sliding ring guide pipe is coaxially arranged at one end, away from the biopsy forceps head, of the guide wire, the sliding ring is sleeved on the outer side of the sliding ring guide pipe in a sliding mode, the sliding ring is connected with the end portion of the metal control wire, and the handle is arranged at one end, away from the guide wire, of the sliding ring guide pipe. During the use, manual control sliding ring moves along the sliding ring pipe outside to can drive the metal control line and remove at the inside cavity position of seal wire, thereby the sample is opened and shut to the control biopsy binding clip.
In a further improvement, the guide wire is a helical structure twisted by stainless steel wires.
The further improvement is that the outer diameter of the outer sheath tube is 2-4mm.
The improvement is that the model of the micro-camera probe is OmniVision OV6948. The size of the endoscope is only 0.65 × 1.158 mm, the endoscope occupies small volume, images can be quickly and clearly transmitted, the energy consumption is low, a body does not generate a large amount of heat, and therefore the endoscope can be kept for a longer time in an operation, and the endoscope has a wide angle of 120 degrees and can be better used for inspecting a narrow environment.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, the biopsy forceps body and the lens component body are matched with the hollow cavity channel in the outer sheath tube, so that a single-cavity biopsy forceps or a multi-cavity biopsy forceps can be formed, wherein the single-cavity biopsy forceps can enter a bronchus with the diameter of about 2mm, the outer diameter of the multi-cavity biopsy forceps can also be controlled within 4mm, the focus in the bronchus cavity can be subjected to direct-view detection through image information acquired by the lens component body, and then tissues at a lesion part are clamped and taken through the biopsy forceps body, so that the whole sampling process has direct-view property and is more objective and visual.
Drawings
The invention is further described in detail below with reference to the drawings and specific embodiments.
FIG. 1 is a schematic diagram of a prior art bioptome;
FIG. 2 is a schematic view showing a structure of an outer sheath in embodiment 1;
FIG. 3 is a schematic structural view of a biopsy forceps body according to embodiment 1;
FIG. 4 is a schematic structural view illustrating a state in which a biopsy forceps head is coupled to an expansion bracket according to embodiment 1;
FIG. 5 is a schematic structural view of a lens module body in embodiment 1;
FIG. 6 is a schematic view showing a structure of an outer sheath according to embodiment 2;
wherein the specific reference numerals are: bracelet 1', seal wire 2', outer tube 3', biopsy forceps head 4', outer sheath 1, cavity chamber way 2, biopsy forceps body 3, biopsy forceps head 4, first forceps head body 5, second forceps head body 6, expansion bracket 7, forceps head seat 8, first portion of inserting 9, seal wire 10, metal control line 11, operation portion 12, handle 13, sliding ring pipe 14, sliding ring 15, lens subassembly body 16, handheld portion 17, second portion of inserting 18, miniature camera probe 19.
Detailed Description
Example 1
Wherein, first portion of inserting 9 includes seal wire 10 and metal control line 11, 10 one end coaxial coupling of seal wire has forceps head seat 8, it is provided with expansion bracket 7 to slide on 8 inside walls of forceps head seat, 7 tops of expansion bracket are connected with biopsy forceps head 4, 4 tip of biopsy forceps head rotate to connect on forceps head seat 8, the inside hollow structure that is of seal wire 10, metal control line 11 slides and wears to locate the inside hollow position of seal wire 10, 11 one end of metal control line is worn out the 10 tip of seal wire and is connected with 7 bottoms of expansion bracket, 11 other ends of metal control line are worn out another tip of seal wire 10 and are connected with operation portion 12. The optional stainless steel pipe of metal control line 11, in using, through setting up metal control line 11, can play the promotion guide effect to seal wire 10 that has flexible structure, make seal wire 10 drive biopsy binding clip 4 and move in the cavity chamber way 2 of sheath 1 inside more easily, control metal control line 11 through operating portion 12 and move at the inside cavity position of seal wire 10, thereby drive 7 bottoms of expansion bracket slide from top to bottom in binding clip seat 8 is inside, and then steerable biopsy binding clip 4 opens and shuts, clamp the tissue of specific site department and get.
Wherein, biopsy binding clip 4 includes first binding clip body 5 and second binding clip body 6, and the centre gripping space on 5 upper portions of first binding clip body and the centre gripping space on 6 upper portions of second binding clip body set up relatively to can merge and form the centre gripping space that is used for the centre gripping pathological change department tissue, first binding clip body 5 and 6 lower parts of second binding clip body all rotate to be connected on binding clip seat 8, and just first binding clip body 5 and 6 bottoms of second binding clip body are connected with 7 tops of expansion bracket respectively. The metal control wire 11 is simultaneously in transmission connection with the first binding clip body 5 and the second binding clip body 6 through the expansion bracket 7, so that the first binding clip body 5 and the second binding clip body 6 can be controlled to rotate relative to the binding clip seat 8 through the operation part 12, and the opening and closing sampling of the first binding clip body 5 and the second binding clip body 6 is realized.
The operating portion 12 comprises a handle 13, a slip ring conduit 14 and a slip ring 15, the slip ring conduit 14 is coaxially arranged at one end, away from the biopsy forceps head 4, of the guide wire 10, the slip ring 15 is sleeved on the outer side of the slip ring conduit 14 in a sliding mode, the slip ring 15 is connected with the end portion of the metal control wire 11, and the handle 13 is arranged at one end, away from the guide wire 10, of the slip ring conduit 14. When the biopsy forceps is used, the manual control sliding ring 15 moves along the outer side of the sliding ring conduit 14, so that the metal control wire 11 can be driven to move in the hollow part in the guide wire 10, and the biopsy forceps head 4 is controlled to be opened, closed and sampled. The handle may also take other configurations known for biopsy forceps.
Both the guide wire 10 and the second insertion portion 18 have a helical structure formed by twisting stainless steel wires.
Wherein the miniature camera probe 19 is of the type OmniVision OV6948. The size of the endoscope is only 0.65 × 1.158 mm, the endoscope occupies small volume, images can be quickly and clearly transmitted, the energy consumption is low, a body does not generate a large amount of heat, and therefore the endoscope can be kept for a longer time in an operation, and the endoscope has a wide angle of 120 degrees and can be better used for inspecting a narrow environment.
When the bronchoscope is in operation, the second insertion part 18 and the miniature camera probe 19 are controlled to be movably inserted into the hollow cavity 2 in the outer sheath tube 1 through the handheld part 17 until the miniature camera probe 19 is flush with the head end of the outer sheath tube 1, the second insertion part 18 and the miniature camera probe 19 are controlled to be inserted into the insertion part of the bronchoscope together, when a bronchus with the diameter smaller than about 4mm needs to enter, the bronchoscope stops moving, the outer sheath tube 1, the second insertion part 18 and the miniature camera probe 19 are continuously controlled to move inwards through the handheld part, image information collected through the miniature camera probe 19 realizes direct-view detection on the bronchial cavity, after a target focus is found, the second insertion part 18 and the miniature camera probe 19 are taken out of the inner part of the outer sheath tube 1, the first insertion part 9 provided with the biopsy forceps head 4 is inserted into the hollow cavity 2 in the outer sheath tube 1, the extending depth of the first insertion part is controlled, the target focus can be reached, and tissues at the lesion site are clamped through the biopsy forceps head 4, so that the whole sampling process is visual and objective and visual effect is achieved.
Example 2
The embodiment 2 of the present invention discloses a biopsy forceps for a visualization endoscope, and the embodiment 2 has the same basic characteristics as the embodiment 1, and the two have the following distinguishing technical characteristics: as shown in fig. 6, in the present embodiment, two hollow channels 2 are formed in the outer sheath 1 along the axial direction to form a double-lumen biopsy forceps, the biopsy forceps body 3 and the lens assembly body 16 are respectively movably mounted in the corresponding hollow channels 2 in the outer sheath 1, and the outer diameter of the outer sheath 1 can be controlled to be about 3 mm.
When the multifunctional endoscope is in work, the outer sheath tube 1 is movably inserted into the insertion part of the bronchoscope, the outer sheath tube 1 is controlled to continuously go deep into the bronchus with the diameter smaller than about 4mm, image information collected by the micro-camera probe 19 is used for carrying out direct vision detection on the bronchus lumen, and after a target focus is found, tissues at the pathological change part are directly clamped through the biopsy forceps head 4 under a visible condition.
The present invention has been described in terms of specific examples, which are provided to aid in understanding the invention and are not intended to be limiting. For a person skilled in the art to which the invention pertains, several simple deductions, modifications or substitutions may be made according to the idea of the invention.
Claims (7)
1. A biopsy forceps for a visual endoscope is characterized by comprising an outer sheath tube, a biopsy forceps body and a lens component body, wherein at least one hollow cavity channel penetrates through the interior of the outer sheath tube along the axial direction, and the biopsy forceps body and the lens component body can be movably arranged in the hollow cavity channel in a penetrating manner;
the biopsy forceps body comprises a biopsy forceps head, a first insertion part and an operation part, wherein the biopsy forceps head and the operation part are respectively connected to two ends of the first insertion part, the biopsy forceps head and the first insertion part can be movably inserted into the hollow cavity, the operation part is positioned on the outer side of the hollow cavity, and the biopsy forceps head is controlled to open and close for sampling through the operation part;
the lens component body comprises a handheld portion, a second inserting portion and a miniature camera probe which are sequentially connected, and the miniature camera probe and the second inserting portion can be movably inserted into the hollow cavity.
2. The biopsy forceps for a visualization endoscope according to claim 1, wherein the first insertion portion includes a guide wire and a metal control wire, one end of the guide wire is coaxially connected to the forceps head base, an expansion bracket is slidably disposed on an inner side wall of the forceps head base, the biopsy forceps head is connected to a top portion of the expansion bracket, the end portion of the biopsy forceps head is rotatably connected to the forceps head base, the guide wire has a hollow interior, the metal control wire is slidably disposed in a hollow portion inside the guide wire, one end of the metal control wire penetrates through an end portion of the guide wire and is connected to a bottom portion of the expansion bracket, and the other end of the metal control wire penetrates through the other end portion of the guide wire and is connected to the operation portion.
3. The biopsy forceps for visualization endoscopes of claim 2, wherein the biopsy forceps head includes a first forceps head body and a second forceps head body, the holding space of the upper portion of the first forceps head body and the holding space of the upper portion of the second forceps head body are disposed opposite to each other and can be combined to form a holding space for holding the tissue of the lesion, the lower portions of the first forceps head body and the second forceps head body are rotatably connected to the forceps head base, and the bottom portions of the first forceps head body and the second forceps head body are respectively connected to the top portion of the telescopic frame.
4. The biopsy forceps for a visualization endoscope according to claim 3, wherein the operation portion comprises a handle, a slip ring guide tube and a slip ring, the slip ring guide tube is coaxially disposed at an end of the guide wire away from the biopsy forceps head, the slip ring is slidably sleeved outside the slip ring guide tube, the slip ring is connected with the end portion of the metal control wire, and the handle is disposed at an end of the slip ring guide tube away from the guide wire.
5. Biopsy forceps for visualization endoscopes according to any of claims 2 to 4, wherein the guide wire is a helical structure twisted from stainless steel wire.
6. The biopsy forceps for visualization endoscopes of claim 1, wherein the outer diameter of the sheath is 2-4mm.
7. The biopsy forceps for a visualization endoscope of claim 1, wherein the micro camera probe is of a model of OmniVision OV6948.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110342230.6A CN115137412A (en) | 2021-03-30 | 2021-03-30 | Biopsy forceps for visual endoscope |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110342230.6A CN115137412A (en) | 2021-03-30 | 2021-03-30 | Biopsy forceps for visual endoscope |
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| Publication Number | Publication Date |
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| CN115137412A true CN115137412A (en) | 2022-10-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110342230.6A Pending CN115137412A (en) | 2021-03-30 | 2021-03-30 | Biopsy forceps for visual endoscope |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116637302A (en) * | 2023-05-12 | 2023-08-25 | 心诺普医疗技术（北京）有限公司 | Lead extraction device and pacemaker |
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2021
- 2021-03-30 CN CN202110342230.6A patent/CN115137412A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116637302A (en) * | 2023-05-12 | 2023-08-25 | 心诺普医疗技术（北京）有限公司 | Lead extraction device and pacemaker |
| CN116637302B (en) * | 2023-05-12 | 2023-12-26 | 心诺普医疗技术（北京）有限公司 | Lead extraction device and pacemaker |
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Effective date of registration: 20240318 Address after: 200040 No. 12 middle Urumqi Road, Shanghai, Jingan District Applicant after: HUASHAN HOSPITAL, FUDAN University Guo jiahuodiqu after: Zhong Guo Address before: No. 108 Luxiang Road, Baoshan District, Shanghai, 2010 Applicant before: NORTH CAMPUS, HUASHAN HOSPITAL AFFILIATED TO FUDAN University Guo jiahuodiqu before: Zhong Guo |