CN112472153B - Disposable living body sampling forceps with multi-angle adjustment function - Google Patents
Disposable living body sampling forceps with multi-angle adjustment function Download PDFInfo
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- CN112472153B CN112472153B CN202011468019.0A CN202011468019A CN112472153B CN 112472153 B CN112472153 B CN 112472153B CN 202011468019 A CN202011468019 A CN 202011468019A CN 112472153 B CN112472153 B CN 112472153B
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- 238000005070 sampling Methods 0.000 title abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 29
- 239000010959 steel Substances 0.000 claims abstract description 29
- 238000001574 biopsy Methods 0.000 claims abstract description 12
- 230000033001 locomotion Effects 0.000 claims description 5
- 239000003814 drug Substances 0.000 abstract 1
- 230000001575 pathological effect Effects 0.000 description 4
- 241000446313 Lamella Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000080 chela (arthropods) Anatomy 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 210000001035 gastrointestinal tract Anatomy 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 238000002558 medical inspection Methods 0.000 description 1
- 238000010827 pathological analysis Methods 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
- 230000002485 urinary effect Effects 0.000 description 1
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
- A61B10/04—Endoscopic instruments
-
- 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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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Molecular Biology (AREA)
- Veterinary Medicine (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Pathology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Radiology & Medical Imaging (AREA)
- Biodiversity & Conservation Biology (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses a multi-angle adjustable disposable living body sampling forceps which is characterized by comprising an operation handle, a forceps body, jaws and a traction steel wire, wherein one end of the traction steel wire is connected with the operation handle, the other end of the traction steel wire is connected with the forceps body, one end of the forceps body is connected with the operation handle, the other end of the forceps body is connected with the jaws, and the jaws are provided with a pair of forceps flaps which are controlled to open and close by a swing rod mechanism. The disposable biopsy forceps have the advantages of simple structure and reasonable design of the connecting part, and can achieve the purpose of taking the biopsy in medicine.
Description
Technical Field
The invention relates to the technical field of medical equipment, in particular to a multi-angle-adjustable disposable biopsy forceps.
Background
The biopsy forceps are used to collect biopsy samples of digestive tract, respiratory tract, urinary system, etc. and provide special apparatus for pathological analysis. The biopsy forceps can extend into a patient body through an endoscope forceps channel to inspect a lesion part, forceps are widely used in clinical medical inspection, and the biopsy forceps are an indispensable tool for taking pathological specimens in the endoscope inspection.
Because smaller pathological tissues are in different shapes and very smooth in a body pipeline, the pathological tissues are not easy to observe when the traditional living body sampling forceps clamp the tissues, and the pathological tissues can be clamped by adjusting the sampling forceps to a proper angle. After the traditional body sampling forceps are inserted into a body pipeline, the clamping angle is not easy to adjust, and the tissue can be clamped by entering the attempt forceps after the angle of the grabbing forceps is adjusted by repeatedly pulling out the body sampling forceps from the endoscope forceps, so that the repeated adjustment is time-consuming and labor-consuming, the operation is inconvenient, the scratch phenomenon of the inner wall of the endoscope is easy to cause, and meanwhile, the examination time is too long, so that the pain of a patient is increased.
Disclosure of Invention
The invention aims to solve the problems that the traditional sampling forceps are inconvenient to adjust the clamping angle, time and labor are wasted in adjustment and the operation is inconvenient, so that the inner wall of an endoscope is easy to scratch, and provides a multi-angle-adjusted disposable living sampling forceps, wherein the forceps of the sampling forceps can reach a proper angle only by adjusting the structure of the sampling forceps.
The invention realizes the above purpose through the following technical scheme: the utility model provides a disposable living body sampling forceps of multi-angle regulation, includes operating handle, body of a clamp, pliers and traction wire, the one end of traction wire is connected operating handle, the other end of traction wire is connected the one end of body of a clamp, the other end of body of a clamp is connected the jaw, the jaw has a pair of pincers lamella that open and shut of control by pendulum rod mechanism;
The operating handle comprises a pull ring, a guide rail, an upper sliding ring and a lower sliding ring, and the pull ring is fixedly connected with the guide rail; the upper slip ring and the lower slip ring have the same structure, and a circular groove for installing a planetary gear is arranged between the upper slip ring and the lower slip ring; the upper slip ring and the lower slip ring are sleeved on the guide rail, and can move along the guide rail; the planetary gear comprises a sun gear, a planetary gear and a driving gear ring, the driving gear ring is arranged on a circular groove between the upper slip ring and the lower slip ring, the planetary gear and the sun gear are respectively arranged in the driving gear ring, the inner ring of the driving gear ring is meshed with the planetary gear, and the planetary gear is meshed with the sun gear; one end of the traction steel wire is fixedly connected to the sun gear, when the gear ring is driven to rotate, the gear ring is driven to drive the planetary gear to rotate through the meshing of the gears, the planetary gear is driven to rotate through the meshing of the gears, and the sun gear is fixedly connected with the traction steel wire to drive the traction steel wire to rotate;
the pliers body comprises an outer sleeve, a spring reset mechanism, a step sleeve, a primary slide block swing rod mechanism and a gear rack mechanism;
The spring reset mechanism comprises a first spring tube and a second spring tube, a stepped sleeve is arranged between the first spring tube and the second spring tube, the stepped sleeve is a stepped hollow cylinder with a large middle diameter and a small diameter at two ends, the cylindrical parts with the small diameters at two ends of the stepped sleeve are respectively sleeved in the first spring tube and the second spring tube, the middle large cylindrical part of the stepped sleeve and the outer rings of the first spring tube form axial positioning, the other end of the first spring tube is in contact with an outer sleeve, one end of the outer sleeve is welded at the bottom of an operating handle, and the other end of the outer sleeve and the first spring tube form axial positioning;
The traction steel wire sequentially passes through the outer sleeve, the first spring tube, the step sleeve and the second spring tube after coming out of the slip ring of the operating handle, and then is connected with the driving end of the primary sliding block swing mechanism.
The primary sliding block swinging mechanism comprises a first connecting rod, a second connecting rod, a third connecting rod, a fourth connecting rod and a swinging rod, wherein the first connecting rod, the second connecting rod, the third connecting rod and the fourth connecting rod form a complete plane four-bar mechanism, one ends of the first connecting rod and the second connecting rod are hinged together to form a driving end of the plane four-bar mechanism, a traction steel wire is connected to the driving end of the plane four-bar mechanism, the other end of the first connecting rod is hinged with one end of the third connecting rod, the other end of the second connecting rod is hinged with one end of the fourth connecting rod, the middle parts of the third connecting rod and the fourth connecting rod are hinged together, and a hinge shaft at the middle parts of the third connecting rod and the fourth connecting rod is fixed on an outer sleeve; the other end of the fourth connecting rod is hinged with one end of a swinging rod, the other end of the swinging rod is an output end of a plane four-rod mechanism, and the output end of the plane four-rod mechanism is connected with the driving end of the gear rack mechanism;
The first rack and the second rack are arranged in parallel and are meshed with the gear, the gear is fixed on the third connecting rod, the second rack is sleeved in the connecting rod shaft sleeve and can linearly move along the connecting rod shaft sleeve, a swinging rod of the primary slider swinging mechanism connected with one end of the first rack serves as a driving end of the gear-rack mechanism, and driving force is transmitted to the second rack as an output end of the gear-rack mechanism through a principle of the gear-rack mechanism; the output end of the gear rack mechanism is connected with the jaw.
Further, the jaw comprises a second-stage slider swing rod mechanism and a jaw, the second-stage slider swing rod mechanism is hinged with the jaw, the second-stage slider swing rod mechanism comprises a fifth connecting rod, a sixth connecting rod, a seventh connecting rod and an eighth connecting rod, one ends of the fifth connecting rod and the sixth connecting rod are hinged, the other end of the fifth connecting rod is hinged with one end of the seventh connecting rod, one ends of the eighth connecting rod at the other end of the sixth connecting rod are hinged, the other end of the seventh connecting rod is hinged with the other end of the eighth connecting rod, two jaw pieces are respectively fixed on the seventh connecting rod and the eighth connecting rod, the hinged ends of the fifth connecting rod and the sixth connecting rod are the input ends of the second-stage slider swing rod mechanism and are connected with the output ends of the rack-and-pinion mechanism, and the hinged ends of the seventh connecting rod and the eighth connecting rod are connected with the end of the third connecting rod; the second-stage slider swing rod mechanism is connected with a second rack of the gear rack mechanism to serve as a driving end, and the output end of the second-stage slider swing rod mechanism is connected with the clamp valve to control opening and closing movement of the clamp valve.
Further, the pull ring structure is an annular ring that can accommodate finger sizes.
Further, one end of the traction steel wire is fixedly connected to the central part of the sun gear.
The invention has the beneficial effects that: the invention can realize the rotation and swing of the jaw of the biopsy forceps, and ensure the reliability of the forceps flap. The invention has simple structure and no increase in cost, accords with the economic concept and the use concept of the disposable supplies, and is suitable for clinical popularization.
Drawings
FIG. 1 is a schematic view showing the overall structure of a multi-angle adjustable disposable biopsy forceps according to the present invention.
Fig. 2 is a schematic view of the structure of the operating handle of the present invention.
Fig. 3 is an enlarged schematic view of the planetary gear structure of the present invention.
Fig. 4 is a schematic view of the structure of the caliper body of the present invention.
Fig. 5 is a schematic view of the jaw structure of the present invention.
In the figure, 1-operating handle, 101-pull ring, 102-guide rail, 103-upper slide ring, 104-lower slide ring, 2-traction wire, 3-clamp body, 301-outer sleeve, 302-step sleeve, 4-jaw, 401-fifth link, 402-sixth link, 403-seventh link, 404-eighth link, 405-first clamp flap, 406-second clamp flap, 5-planetary gear, 501-sun gear, 502-planetary gear, 503-driving gear ring, 6-spring return mechanism, 601-first spring tube, 602-second spring tube, 7-first-stage slider swing link mechanism, 701-first link, 702-second link, 703-third link, 704-fourth link, 705-swing link, 8-rack and pinion mechanism, 801-first rack, 802-gear, 803-second rack.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
As shown in fig. 1 to 5, a multi-angle adjustable disposable biopsy forceps is characterized in that: the novel multifunctional pliers comprise an operating handle 1, a pliers body 103, pliers and a traction steel wire 102, wherein one end of the traction steel wire 102 is connected with the operating handle 1, the other end of the traction steel wire 102 is connected with one end of the pliers body 103, the other end of the pliers body 103 is connected with a jaw 4, and the jaw 4 is provided with a pair of pliers flaps which are controlled to open and close by a swing rod mechanism.
The operating handle 1 comprises a pull ring 101, a guide rail 102, an upper sliding ring 103 and a lower sliding ring 104, wherein the pull ring 101 is fixedly connected with the guide rail 102; the upper sliding ring 103 and the lower sliding ring 104 have the same structure, and a circular groove for installing the planetary gear 5 is arranged between the upper sliding ring 103 and the lower sliding ring 104; the upper slip ring 103 and the lower slip ring 104 are sleeved on the guide rail 102, and the upper slip ring 103 and the lower slip ring 104 can move along the guide rail 102; the planetary gear 5 comprises a sun gear 501, a planet gear 502 and a driving gear ring 503, wherein the driving gear ring 503 is arranged on a circular groove between the upper slip ring 103 and the lower slip ring 104, the planet gear 502 and the sun gear 501 are respectively arranged in the driving gear ring 503, the inner ring of the driving gear ring 503 is meshed with the planetary gear 5, and the planetary gear 5 is meshed with the sun gear 501; one end of the traction steel wire 102 is fixedly connected to the sun gear 501, when the gear ring 503 is driven to rotate, the gear ring 503 is driven to drive the planet gears 502 to rotate through the meshing of the gears, the planet gears 502 are driven to drive the sun gear 501 to rotate through the meshing of the gears, and the sun gear 501 is fixedly connected with the traction steel wire 102 to drive the traction steel wire 102 to rotate.
The clamp body 103 comprises an outer sleeve 301, a spring reset mechanism 6, a step sleeve 302, a primary slide block swing rod mechanism and a gear rack mechanism 8.
The spring return mechanism 6 comprises a first spring tube 601 and a second spring tube 602, a stepped sleeve 302 is arranged between the first spring tube 601 and the second spring tube 602, the stepped sleeve 302 is a stepped hollow cylinder with a large middle diameter and a small two ends, the two small-diameter cylindrical parts at the two ends of the stepped sleeve 302 are respectively sleeved in the first spring tube 601 and the second spring tube 602, the middle large cylindrical part of the stepped sleeve 302 and the outer rings of the first spring tube 601 and the second spring tube 602 form axial positioning, the other end of the first spring tube 601 is in contact with the outer sleeve 301, one end of the outer sleeve 301 is welded at the bottom of the operating handle 1, and the other end of the outer sleeve 301 and the first spring tube 601 form axial positioning. The outer sleeve 301 is divided into a front section and a rear section, the two sections of outer sleeves 301 are separated through the first spring tube 601, the step sleeve 302 and the second spring tube 602 to realize shrinkage and resetting of the outer sleeve 301, the outer sleeve 301 of the front section is welded on the operating handle 1, the outer sleeve 301 of the rear section is movably connected, and the outer sleeve 301 and the clamp head are convenient to integrally rotate.
The traction steel wire 102 sequentially passes through the outer sleeve 301, the first spring tube 601, the step sleeve 302 and the second spring tube 602 after coming out of the slip ring of the operating handle 1, and then is connected with the driving end of the primary sliding block swinging mechanism 7.
The primary sliding block swinging mechanism 7 comprises a first connecting rod 701, a second connecting rod 702, a third connecting rod 703, a fourth connecting rod 704 and a swinging rod 705, wherein the first connecting rod 701, the second connecting rod 702, the third connecting rod 703 and the fourth connecting rod 704 form a complete plane four-bar mechanism, one end of the first connecting rod 701 and one end of the second connecting rod 702 are hinged together to form a driving end of the plane four-bar mechanism, a traction steel wire 102 is connected to the driving end of the plane four-bar mechanism, the other end of the first connecting rod 701 is hinged with one end of the third connecting rod 703, the other end of the second connecting rod 702 is hinged with one end of the fourth connecting rod 704, the middle parts of the third connecting rod 703 and the fourth connecting rod 704 are hinged together, and a hinge shaft at the middle parts of the third connecting rod 703 and the fourth connecting rod 704 is fixed on the outer sleeve 301; the other end of the fourth connecting rod 704 is hinged with one end of a swinging rod 705, the other end of the swinging rod 705 is an output end of a plane four-bar mechanism, and the output end of the plane four-bar mechanism is connected with the driving end of the gear rack mechanism 8.
The gear rack mechanism 8 comprises a connecting rod shaft sleeve, a first rack 801, a gear 802 and a second rack 803, wherein the connecting rod shaft sleeve is sleeved on the third connecting rod 703 and can linearly move along the third connecting rod 703, the other end of the swinging rod 705 is hinged to one end of the connecting rod shaft sleeve, the first rack 801 is fixed on the connecting rod shaft sleeve, the first rack 801 and the second rack 803 are arranged in parallel, the first rack 801 and the second rack 803 are meshed with the gear 802, the second rack 803 is sleeved in the connecting rod shaft sleeve and can linearly move along the connecting rod shaft sleeve, the swinging rod 705 of the primary sliding block swinging mechanism 7 connected with one end of the first rack 801 serves as a driving end of the gear rack mechanism 8, and driving force is transmitted to the second rack 803 as an output end of the gear rack mechanism 8 through the principle of the gear rack mechanism 8; the output end of the gear rack mechanism 8 is connected with the jaw 4.
The jaw 4 comprises a secondary slide block swing rod mechanism and a clamp flap, the secondary slide block swing rod mechanism is hinged with the clamp flap, the secondary slide block swing rod mechanism comprises a fifth connecting rod 401, a sixth connecting rod 402, a seventh connecting rod 403 and an eighth connecting rod 404, one ends of the fifth connecting rod 401 and the sixth connecting rod 402 are hinged, the other end of the fifth connecting rod 401 is hinged with one end of the seventh connecting rod 403, one end of the eighth connecting rod 404 at the other end of the sixth connecting rod 402 is hinged, the other end of the seventh connecting rod 403 is hinged with the other end of the eighth connecting rod 404, two clamp flaps are respectively fixed on the seventh connecting rod 403 and the eighth connecting rod 404, the hinged ends of the fifth connecting rod 401 and the sixth connecting rod 402 are the input ends of the secondary slide block swing rod mechanism and are connected with the output end of the gear rack mechanism 8, and the hinged ends of the seventh connecting rod 403 and the eighth connecting rod 404 are connected with the end of the third connecting rod 703; the second-stage slider swing rod mechanism is connected with a second rack 803 of the gear rack mechanism 8 to serve as a driving end, and the output end of the second-stage slider swing rod mechanism is connected with the clamp valve to control the opening and closing movement of the clamp valve. The clamp flap comprises a first clamp flap 405 and a second clamp flap 406, the first clamp flap 405 being fixed to the seventh link 403 and the second clamp flap 406 being fixed to the eighth link 404.
The pull ring 101 is configured to receive a finger-sized annular ring.
One end of the traction wire 102 is fixedly connected to the central portion of the sun gear 501.
The specific detailed operation mode of the invention is as follows:
Rotation of the jaws: the medical staff drives the traction steel wire 2 to rotate through the planetary gear train 5 by controlling the driving gear ring 503 on the operating handle 1 to rotate, the traction steel wire 2 transmits the rotating force to the primary sliding block swinging mechanism 7 on the forceps body 3, and then the swinging rod 705 transmits the rotating force to the gear rack mechanism 8, and the output end of the gear rack mechanism 8 is connected with the forceps jaws 4, so that the forceps jaws 4 rotate.
Swing of jaws: the medical staff sequentially transmits the tensile force to the spring reset mechanism 6 through the traction steel wire 2 in the lower slip ring by moving the lower slip ring 104 on the operating handle 1, and transmits the swing motion to the swing rod 705 of the primary slide swing mechanism 7 according to the expansion and contraction deformation of the spring in the spring reset mechanism 6, and then transmits the swing motion to the driving end of the gear rack mechanism 8, and further, the output end of the gear rack mechanism 8 is connected with the jaw 4, so that the swing of the jaw 4 is realized.
The above embodiments are only preferred embodiments of the present invention, and are not limiting to the technical solutions of the present invention, and any technical solution that can be implemented on the basis of the above embodiments without inventive effort should be considered as falling within the scope of protection of the patent claims of the present invention.
Claims (2)
1. A disposable biopsy forceps of multi-angle regulation, its characterized in that: the novel multifunctional pliers comprise an operating handle (1), a pliers body (3), pliers and a traction steel wire (2), wherein one end of the traction steel wire (2) is connected with the operating handle (1), the other end of the traction steel wire (2) is connected with one end of the pliers body (3), the other end of the pliers body (3) is connected with a jaw (4), and the jaw (4) is provided with a pair of pliers flaps controlled to open and close by a swing rod mechanism;
The operating handle (1) comprises a pull ring (101), a guide rail (102), an upper sliding ring (103) and a lower sliding ring (104), wherein the pull ring (101) is fixedly connected with the guide rail (102); the upper sliding ring (103) and the lower sliding ring (104) have the same structure, and a circular groove for installing the planetary gear (5) is arranged between the upper sliding ring (103) and the lower sliding ring (104); the upper sliding ring (103) and the lower sliding ring (104) are sleeved on the guide rail (102), and the upper sliding ring (103) and the lower sliding ring (104) can move along the guide rail (102); the planetary gear (5) comprises a sun gear (501), a planet gear (502) and a driving gear ring (503), wherein the driving gear ring (503) is arranged on a circular groove between the upper slip ring (103) and the lower slip ring (104), the planet gear (502) and the sun gear (501) are respectively arranged in the driving gear ring (503), an inner ring of the driving gear ring (503) is meshed with the planetary gear (5), and the planetary gear (5) is meshed with the sun gear (501); one end of the traction steel wire (2) is fixedly connected to the sun gear (501), when the gear ring (503) is driven to rotate, the gear ring (503) is driven to drive the planet gear (502) to rotate through the meshing of the gears, the rotation of the planet gear (502) drives the sun gear (501) to rotate through the meshing of the gears, and the sun gear (501) is fixedly connected with the traction steel wire (2) to drive the traction steel wire (2) to rotate;
The pliers body (3) comprises an outer sleeve (301), a spring reset mechanism (6), a step sleeve (302), a primary sliding block swing rod mechanism and a gear rack mechanism (8);
The spring return mechanism (6) comprises a first spring tube (601) and a second spring tube (602), a stepped sleeve (302) is arranged between the first spring tube (601) and the second spring tube (602), the stepped sleeve (302) is a stepped hollow cylinder with a large middle diameter and a small two ends, the cylindrical parts with the small diameters at the two ends of the stepped sleeve (302) are respectively sleeved in the first spring tube (601) and the second spring tube (602), the middle large cylindrical part of the stepped sleeve (302) and the outer rings of the first spring tube (601) and the second spring tube (602) form axial positioning, the other end of the first spring tube (601) is in contact with an outer sleeve (301), one end of the outer sleeve (301) is welded at the bottom of the operating handle (1), and the other end of the outer sleeve and the first spring tube (601) form axial positioning;
The traction steel wire (2) sequentially passes through the outer sleeve (301), the first spring tube (601), the step sleeve (302) and the second spring tube (602) after coming out of the slip ring of the operating handle (1) and then is connected with the driving end of the primary sliding block swinging mechanism (7);
The primary sliding block swinging mechanism (7) comprises a first connecting rod (701), a second connecting rod (702), a third connecting rod (703), a fourth connecting rod (704) and a swinging rod (705), wherein the first connecting rod (701), the second connecting rod (702), the third connecting rod (703) and the fourth connecting rod (704) form a complete plane four-bar mechanism, one end of the first connecting rod (701) and one end of the second connecting rod (702) are hinged together to form a driving end of the plane four-bar mechanism, a traction steel wire (2) is connected to the driving end of the plane four-bar mechanism, the other end of the first connecting rod (701) is hinged with one end of the third connecting rod (703), the other end of the second connecting rod (702) is hinged with one end of the fourth connecting rod (703), the middle parts of the third connecting rod (703) and the fourth connecting rod (704) are hinged together, and a hinge shaft at the middle parts of the third connecting rod (703) and the fourth connecting rod (704) is fixed on the outer sleeve (301); the other end of the fourth connecting rod (704) is hinged with one end of a swinging rod (705), the other end of the swinging rod (705) is an output end of a plane four-bar mechanism, and the output end of the plane four-bar mechanism is connected with the driving end of a gear rack mechanism (8);
The gear rack mechanism (8) comprises a connecting rod shaft sleeve, a first rack (801), a gear (802) and a second rack (803), wherein the connecting rod shaft sleeve is sleeved on the third connecting rod (703) and can linearly move along the third connecting rod (703), the other end of the swinging rod (705) is hinged to one end of the connecting rod shaft sleeve, the first rack (801) is fixed on the connecting rod shaft sleeve, the first rack (801) and the second rack (803) are arranged in parallel, the first rack (801) and the second rack (803) are meshed with the gear (802), the second rack (803) is sleeved in the connecting rod shaft sleeve and can linearly move along the connecting rod shaft sleeve, and the swinging rod (705) of the primary sliding block swinging mechanism (7) connected with one end of the first rack (801) serves as a driving end of the gear rack mechanism (8), and driving force is transmitted to the second rack (803) through the gear (802) to serve as an output end of the gear rack mechanism (8); the output end of the gear rack mechanism (8) is connected with the jaw (4);
The jaw (4) comprises a second-stage slider swing rod mechanism and a clamp flap, the second-stage slider swing rod mechanism is hinged with the clamp flap, the second-stage slider swing rod mechanism comprises a fifth connecting rod (401), a sixth connecting rod (402), a seventh connecting rod (403) and an eighth connecting rod (404), one ends of the fifth connecting rod (401) and the sixth connecting rod (402) are hinged, the other ends of the fifth connecting rod (401) are hinged with one end of the seventh connecting rod (403), the other ends of the sixth connecting rod (402) are hinged with one end of the eighth connecting rod (404), the other ends of the seventh connecting rod (403) are hinged with the other ends of the eighth connecting rod (404), the two clamp flaps are respectively fixed on the seventh connecting rod (403) and the eighth connecting rod (404), the hinged ends of the fifth connecting rod (401) and the sixth connecting rod (402) are the input ends of the second-stage slider swing rod mechanism and are connected with the output end of the gear rack mechanism (8), and the hinged ends of the seventh connecting rod (403) and the eighth connecting rod (404) are connected with the end of the third connecting rod (703); the second-stage slider swing rod mechanism is connected with a second rack (803) of the gear rack mechanism (8) to serve as a driving end, and the output end of the second-stage slider swing rod mechanism is connected with the clamp valve to control the opening and closing movement of the clamp valve;
One end of the traction steel wire (2) is fixedly connected to the central part of the sun gear (501).
2. A multi-angle adjustable disposable biopsy forceps as claimed in claim 1, wherein: the pull ring (101) is configured to receive a finger-sized annular ring.
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| CN202011468019.0A CN112472153B (en) | 2020-12-14 | 2020-12-14 | Disposable living body sampling forceps with multi-angle adjustment function |
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| CN202011468019.0A CN112472153B (en) | 2020-12-14 | 2020-12-14 | Disposable living body sampling forceps with multi-angle adjustment function |
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| CN112472153B true CN112472153B (en) | 2024-05-07 |
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| CN102028548A (en) * | 2011-01-14 | 2011-04-27 | 哈尔滨工业大学 | Clamp-type surgical instrument for abdominal cavity minimally invasive surgery robot |
| CN104224254A (en) * | 2013-06-20 | 2014-12-24 | 瑞奇外科器械(中国)有限公司 | Surgical operation instrument and drive device thereof |
| CN204600543U (en) * | 2015-04-20 | 2015-09-02 | 江苏安特尔医疗科技有限公司 | New disposable biopsy forceps of endoscope |
| CN204618305U (en) * | 2015-04-20 | 2015-09-09 | 江苏安特尔医疗科技有限公司 | Portable type disposable endoscope biopsy forceps |
| CN111542274A (en) * | 2017-10-30 | 2020-08-14 | 爱惜康有限责任公司 | Surgical instrument including biased switching mechanism |
| CN211094328U (en) * | 2019-10-14 | 2020-07-28 | 刘迎 | Disposable biopsy forceps |
| CN110974314A (en) * | 2019-12-31 | 2020-04-10 | 上海威尔逊光电仪器有限公司 | Superfine biopsy forceps |
| CN215384227U (en) * | 2020-12-14 | 2022-01-04 | 浙江工业大学 | Disposable biopsy forceps with swinging and rotating forceps head |
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