CN114521975A - Tumor adsorption clamp for oncology department - Google Patents
Tumor adsorption clamp for oncology department Download PDFInfo
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- CN114521975A CN114521975A CN202210281850.8A CN202210281850A CN114521975A CN 114521975 A CN114521975 A CN 114521975A CN 202210281850 A CN202210281850 A CN 202210281850A CN 114521975 A CN114521975 A CN 114521975A
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- 238000001179 sorption measurement Methods 0.000 title claims abstract description 68
- 206010028980 Neoplasm Diseases 0.000 title claims abstract description 56
- 230000000903 blocking effect Effects 0.000 claims abstract description 25
- 238000000926 separation method Methods 0.000 claims abstract description 5
- 239000003381 stabilizer Substances 0.000 claims 1
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 231100000315 carcinogenic Toxicity 0.000 description 1
- 206010020718 hyperplasia Diseases 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 238000002271 resection Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/10—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges for stereotaxic surgery, e.g. frame-based stereotaxis
- A61B90/14—Fixators for body parts, e.g. skull clamps; Constructional details of fixators, e.g. pins
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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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- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Medical Informatics (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Neurosurgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Pathology (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Percussion Or Vibration Massage (AREA)
Abstract
The invention discloses a tumor adsorption clamp for oncology department, which comprises a pushing mechanism and an adsorption mechanism, wherein the pushing mechanism comprises a first holding rod, a second holding rod, a bracket, a push rod and a connecting rod, the bracket is fixed on the second holding rod, the first holding rod is hinged with the bracket, a supporting frame is formed at the lower end of the second holding rod, connecting parts at two ends of the push rod are connected with two side rods of the supporting frame, the push rod can slide along the side rods of the supporting frame, the connecting rod is fixed on the push rod, the upper end of the connecting rod is hinged with the lower end of the first holding rod, the adsorption mechanism comprises an adsorption sheet and a pushing and blocking sheet, a plurality of vent holes are formed on the adsorption sheet, a shielding sheet is arranged on an upper cover of the vent holes, the front end of the shielding sheet is an opening, the top surface of the opening is in open fit with the surface of the shielding sheet, the outer edge of the top surface of the opening of the shielding sheet fully covers the vent holes, the pushing and blocking sheet is stacked on the adsorption sheet, a containing hole is formed right opposite to the vent hole, the pushing separation blade is connected with the push rod, so that the use is convenient, the assistance of other electrical equipment is not needed, and the cost is low.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to a tumor adsorption clamp for oncology.
Background
The tumor is an abnormal lesion formed by clonal abnormal hyperplasia of a certain cell of a local tissue due to the loss of normal regulation and control on the growth of the certain cell at the gene level under the action of various carcinogenic factors of an organism, and the tumor tissue has different degrees from the normal tissue of the local tissue no matter on the cell morphology and the tissue structure.
When a surgeon performs an operation on a patient, in a tumor resection operation, tumors are generally extracted by using medical forceps, but when the forceps are used for extracting the tumors, only two stress points of the tumors are small in stress area, and the tumors are easy to break.
Disclosure of Invention
The invention aims to solve the technical problem of providing a tumor adsorption clamp for oncology, aiming at the current situation of the prior art, the tumor adsorption clamp is reasonable in design and convenient to use, effectively absorbs and fixes tumors by utilizing a negative pressure principle, and cannot cause the tumors to break.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a tumor adsorption clamp for oncology department comprises a pushing mechanism and an adsorption mechanism, wherein the pushing mechanism comprises a first holding rod, a second holding rod, a support, a push rod and a connecting rod, the support is fixed on the second holding rod, the first holding rod is hinged with the support, a supporting frame is formed at the lower end of the second holding rod, connecting parts at two ends of the push rod are connected with two side rods of the supporting frame, the push rod can slide along side rods of the supporting frame, the connecting rod is fixed on the push rod, the upper end of the connecting rod is hinged with the lower end of the first holding rod, the adsorption mechanism comprises an adsorption sheet and a pushing and blocking sheet, a plurality of vent holes are formed in the adsorption sheet, a shielding sheet is arranged on an upper cover of the vent holes, the front end of the shielding sheet is an opening, the top surface of the opening is in open fit with the surface of the shielding sheet, the outer edge of the top surface of the opening of the shielding sheet fully covers the vent holes, the pushing and blocking sheet is stacked on the adsorption sheet, a containing hole is formed in the pushing and blocking sheet is connected with the push rod, the adsorption piece is provided with a connecting piece, the connecting piece is fixedly connected with the supporting frame of the second holding rod, the push rod pushes the pushing baffle piece to move forwards, the shielding piece is extruded by the accommodating hole of the pushing baffle piece, air in the shielding piece is discharged from the opening, the shielding piece is attached to the surface of the adsorption piece to shield the vent hole, and when the accommodating hole of the pushing baffle piece does not extrude the shielding piece any more, the shielding piece is suitable for elastically recovering the original shape of the shielding piece to open the vent hole.
In order to optimize the technical scheme, the adopted measures further comprise:
the two sides of the pushing and blocking piece extend to the gaps formed between the two side rods of the supporting frame and the adsorption piece, and the two side rods of the supporting frame guide the pushing and blocking piece to slide along the upper surface of the adsorption piece.
The accommodating hole of the pushing blocking piece is provided with a convex cone towards the opening direction of the blocking piece.
The supporting frame and the second holding rod are obliquely arranged, and the included angle between the supporting frame and the second holding rod is 120-140 degrees.
A reset torsion spring is arranged between the first holding rod and the second holding rod, and two support legs of the reset torsion spring are respectively connected with the finger rings of the first holding rod and the second holding rod.
The periphery of the adsorption sheet extends downwards to form a skirt.
The thickness of the convex cone gradually decreases towards the tip.
The upper surface of the pushing separation blade is provided with a fixed sleeve, and a fixed column at the lower end of the push rod is inserted in the fixed sleeve.
The two sides of the pushing separation blade are provided with a notch corresponding to the connecting part of the push rod.
The connecting parts at the two ends of the push rod are U-shaped clamping grooves.
The invention relates to a tumor adsorption clamp for oncology, which comprises a pushing mechanism and an adsorption mechanism, wherein the pushing mechanism comprises a first holding rod, a second holding rod, a bracket, a push rod and a connecting rod, the bracket is fixed on the second holding rod, the first holding rod is hinged with the bracket, a supporting frame is formed at the lower end of the second holding rod, connecting parts at two ends of the push rod are connected with rods at two sides of the supporting frame, the push rod can slide along side rods of the supporting frame, the connecting rod is fixed on the push rod, the upper end of the connecting rod is hinged with the lower end of the first holding rod, the adsorption mechanism comprises an adsorption sheet and a pushing and blocking sheet, a plurality of vent holes are formed on the adsorption sheet, a shielding sheet is covered on the vent holes, the front end of the shielding sheet is an opening, the top surface of the opening is in open fit with the surface of the shielding sheet, the outer edge of the top surface of the opening of the shielding sheet fully covers the vent holes, the pushing and blocking sheet is overlapped on the adsorption sheet, a containing hole is formed right opposite to the vent hole, the tumor adsorption clamp is reasonable in design and convenient to use, effectively absorbs and fixes tumors by utilizing a negative pressure principle, and cannot cause the tumors to break.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a schematic view of the adsorption mechanism of the present invention;
fig. 4 is a partial sectional view of the adsorption mechanism.
Detailed Description
Embodiments of the present invention are described in further detail below with reference to the accompanying drawings.
Fig. 1 to 4 are schematic structural views of the present invention.
Wherein the reference numerals are: the device comprises a pushing mechanism 1, a first holding rod 11, a second holding rod 12, a supporting frame 13, a side rod 14, a reset torsion spring 15, a support 2, a push rod 3, a connecting part 31, a connecting rod 4, an adsorption mechanism 5, an adsorption sheet 51, a vent hole 52, a shielding sheet 53, an opening 54, a connecting piece 55, a skirt edge 56, a pushing baffle sheet 6, an accommodating hole 61, a convex cone 62, a fixing sleeve 63 and a notch 64.
As shown in fig. 1 to 4:
a tumor adsorbing clamp for oncology department comprises a pushing mechanism 1 and an adsorbing mechanism 5, wherein the pushing mechanism 1 comprises a first holding rod 11, a second holding rod 12, a support 2, a push rod 3 and a connecting rod 4, the first holding rod 11 comprises a first supporting arm and a second supporting arm, the first supporting arm and the second supporting arm are bent, the second holding rod 12 is branched into two upper side rods from the upper position to two sides, a gap between the two upper side rods is used for accommodating the connecting rod 4, the support 2 is fixed on the upper part of the second holding rod 12, the support 2 comprises a fixing sleeve and a connecting lug, the fixing sleeve is sleeved and fixed on the upper part of the second holding rod 12, the first holding rod 11 is hinged with the connecting lug of the support 2, the first holding rod 11 can rotate at the support 2, a supporting frame 13 is formed at the lower end of the second holding rod 12, connecting parts 31 at two ends of the push rod 3 are connected with two side rods 14 of the supporting frame 13, the push rod 3 can slide along the side rods 14 of the supporting frame 13, the connecting rod 4 is fixed on the push rod 3, the upper end of the connecting rod 4 is hinged with the lower end of the first holding rod 11, the upper parts of the first holding rod 11 and the second holding rod 12 are pressed to be closed, the first holding rod 11 rotates around the support 2, the lower end of the first holding rod 11 pushes the push rod 3 to slide forwards along the side rod 14 of the support frame 13 through the connecting rod 4, the first holding rod 11 is separated from the second holding rod 12, the lower end of the first holding rod 11 pulls the push rod 3 to slide backwards along the side rod 14 of the support frame 13 through the connecting rod 4, so that the push rod 3 can slide back and forth, the adsorption mechanism 5 comprises an adsorption sheet 51 and a pushing and blocking sheet 6, a plurality of vent holes 52 are formed in the adsorption sheet 51, when the adsorption sheet 51 is attached to the surface of the tumor, the air on the surface of the adsorption sheet and the tumor is exhausted through the vent holes 52, so that the air on the adsorption sheet and the surface of the tumor can be quickly exhausted, the air residue is avoided, and the adsorption sheet and the surface of the tumor can be firmly adsorbed to the tumor, the shielding piece 53 is covered on the vent hole 52, the front end of the shielding piece 53 is an opening 54, the top surface of the opening 54 is in open fit with the surface of the shielding piece 53, the outer edge of the top surface of the opening 54 of the shielding piece 53 fully covers the vent hole 52, the pushing and blocking piece 6 is overlapped on the adsorption piece 51, a containing hole 61 is formed on the pushing and blocking piece 6 opposite to the vent hole 52, the pushing and blocking piece 6 is connected with the push rod 3, the adsorption piece 51 is provided with a connecting piece 55, the connecting piece 55 is fixedly connected with the front end side rod and the rear end side rod of the supporting frame 13 of the second holding rod 12, so that the adsorption piece 51 is fixedly fixed with the supporting frame 13 of the second holding rod 12, the supporting frame can uniformly disperse the pressure of the holding rod on the adsorption piece 51, when the tumor is adsorbed, the adsorption piece 51 is attached to the surface of the tumor, the adsorption piece is slightly pressed, the air on the surface of the adsorption piece and the tumor is discharged through the vent hole 52, the upper parts of the first holding rod 11 and the second holding rod 12 are pressed together, the push rod 3 pushes the push baffle 6 to move forwards, the shielding piece 53 is extruded by the accommodating hole 61 of the push baffle 6, the air in the shielding piece 53 is discharged from the opening 54, the shielding piece 53 is attached to the surface of the adsorption piece 51 to shield and seal the vent hole 52, when the tumor is released, the first holding rod 11 is separated from the second holding rod 12, the push rod 3 pulls the push baffle 6 to move backwards, when the accommodating hole 61 of the push baffle 6 does not extrude the shielding piece 53 any more, the shielding piece 53 is suitable for elastically recovering the original shape thereof to open the vent hole 52, the tumor adsorption clip of the invention has reasonable design and convenient use, the tumor can be effectively absorbed and fixed by utilizing the negative pressure principle, the tumor can not be broken, the invention can rapidly discharge the air on the surfaces of the adsorption piece and the tumor, the adsorption piece and the tumor surface is firmer, the operation speed is high, the use is convenient, and no other electric equipment is needed for assistance, the cost is low.
In the embodiment, two sides of the pushing baffle piece 6 extend into gaps formed between the two side rods 14 of the supporting frame 13 and the adsorption piece 51, and the two side rods 14 of the supporting frame 13 guide the pushing baffle piece 6 to slide along the upper surface of the adsorption piece 51, so that the close fit between the pushing baffle piece 6 and the adsorption piece 51 is ensured.
In the embodiment, the accommodating hole 61 of the pushing baffle plate 6 is provided with the convex cone 62 towards the opening 54 of the shielding plate 53, the push rod 3 pulls the pushing baffle plate 6 to move backwards, when the accommodating hole 61 of the pushing baffle plate 6 does not extrude the shielding plate 53 any more, the convex cone 62 can be inserted into the opening 54 of the shielding plate 53, so that the shielding plate 53 is opened quickly, air enters the shielding plate 53 quickly and enters between the adsorbing plate and the surface of the tumor through the vent hole 52, and the adsorbing plate is ensured to be separated from the tumor quickly.
In the embodiment, the supporting frame 13 and the second holding rod 12 are disposed in an inclined manner, and the included angle between the supporting frame 13 and the second holding rod 12 is 120 ° to 140 °, so that the operation is more convenient.
In the embodiment, a reset torsion spring 15 is arranged between the first holding rod 11 and the second holding rod 12, and two support legs of the reset torsion spring 15 are respectively connected with the finger rings of the first holding rod 11 and the second holding rod 12, so that the first holding rod 11 and the second holding rod 12 can be automatically opened, and the operation is convenient.
In the embodiment, the peripheral edge of the absorption sheet 51 is extended downwards to form a skirt 56, so as to ensure that the absorption sheet 51 and the tumor are absorbed more firmly.
In the embodiment, the thickness of the convex cone 62 gradually decreases toward the tip, so as to better open the shielding plate 53.
In the embodiment, the upper surface of the pushing baffle 6 is provided with the fixing sleeve 63, and the fixing column at the lower end of the pushing rod 3 is inserted in the fixing sleeve 63, so that the installation is more convenient.
In the embodiment, the two sides of the pushing baffle 6 are provided with the notches 64 corresponding to the connecting portion 31 of the pushing rod 3, so that the connecting portion 31 is prevented from blocking the movement of the pushing baffle 6.
In the embodiment, the connecting parts 31 at the two ends of the push rod 3 are U-shaped clamping grooves, so that the installation is more convenient and faster.
The principle and the using method of the invention are as follows:
when a tumor is adsorbed, the adsorption piece 51 is attached to the surface of the tumor, the adsorption piece and the air on the surface of the tumor are discharged through the vent hole 52 by slightly pressing, the upper parts of the first holding rod 11 and the second holding rod 12 are pressed to be closed, the first holding rod 11 rotates around the bracket 2, the lower end of the first holding rod 11 pushes the push rod 3 to slide forwards along the side rod 14 of the support frame 13 through the connecting rod 4, the push rod 3 pushes the push baffle 6 to move forwards, the shielding piece 53 pushes the air in the shielding piece 53 through the accommodating hole 61 of the push baffle 6, the air in the shielding piece 53 is discharged from the opening 54, the shielding piece 53 is attached to the surface of the adsorption piece 51 to shield and seal the vent hole 52, when the tumor is released, the first holding rod 11 and the second holding rod 12 are not pressed any more, the first holding rod 11 and the second holding rod 12 are separated under the action of the reset torsion spring 15, the lower end of the first holding rod 11 pulls the push rod 3 to slide backwards along the side rod 14 of the support frame 13 through the connecting rod 4, the push rod 3 pulls the push baffle 6 to move backwards, when the accommodating hole 61 of the push baffle 6 does not extrude the shielding piece 53 any more, the convex cone 62 can be inserted into the opening 54 of the shielding piece 53, meanwhile, the shielding piece 53 is suitable for elastically recovering the original shape to open the vent hole 52, air quickly enters the shielding piece 53 and enters between the absorbing piece and the surface of the tumor through the vent hole 52, the tumor absorbing clamp disclosed by the invention is reasonable in design and convenient to use, the tumor is effectively absorbed and fixed by utilizing a negative pressure principle, and the tumor is not cracked.
While the preferred embodiments of the present invention have been illustrated, various changes and modifications may be made by one skilled in the art without departing from the scope of the invention.
Claims (10)
1. A tumor adsorption clamp for oncology is characterized in that: comprises a pushing mechanism (1) and an adsorption mechanism (5), wherein the pushing mechanism (1) comprises a first holding rod (11), a second holding rod (12), a support (2), a push rod (3) and a connecting rod (4), the support (2) is fixed on the second holding rod (12), the first holding rod (11) is hinged with the support (2), a supporting frame (13) is formed at the lower end of the second holding rod (12), connecting parts (31) at two ends of the push rod (3) are connected with two side rods (14) of the supporting frame (13), the push rod (3) can slide along the side rods (14) of the supporting frame (13), the connecting rod (4) is fixed on the push rod (3), the upper end of the connecting rod (4) is hinged with the lower end of the first holding rod (11), the adsorption mechanism (5) comprises an adsorption sheet (51) and a pushing blocking sheet (6), the adsorption piece (51) is provided with a plurality of vent holes (52), the upper cover of each vent hole (52) is provided with a shielding piece (53), the front end of each shielding piece (53) is provided with an opening (54), the top surface of each opening (54) is opened and matched with the surface of each shielding piece (53), the top surface of each opening (54) of each shielding piece (53) is covered with the corresponding vent hole (52) along the outer edge, the pushing blocking piece (6) is superposed on the adsorption piece (51), the pushing blocking piece (6) is provided with a containing hole (61) right opposite to the corresponding vent hole (52), the pushing blocking piece (6) is connected with the push rod (3), the adsorption piece (51) is provided with a connecting piece (55), the connecting piece (55) is fixedly connected with the supporting frame (13) of the second holding rod (12), the push rod (3) pushes the pushing blocking piece (6) to move forwards, and the shielding piece (53) is extruded and pressed down in the containing hole (61) of the pushing blocking piece (6), the air in the shielding piece (53) is discharged from the opening (54), the shielding piece (53) is attached to the surface of the adsorption piece (51) to shield the vent hole (52), and when the accommodating hole (61) of the pushing and blocking piece (6) does not extrude the shielding piece (53), the shielding piece (53) is suitable for elastically recovering the original shape to open the vent hole (52).
2. The tumor adsorbing clip for oncology department of claim 1, wherein: two sides of the pushing blocking piece (6) extend to a gap formed between two side rods (14) of the supporting frame (13) and the adsorption piece (51), and the two side rods (14) of the supporting frame (13) guide the pushing blocking piece (6) to slide along the upper surface of the adsorption piece (51).
3. The tumor adsorbing clip for oncology department of claim 2, wherein: a convex cone (62) is arranged at the position of the accommodating hole (61) of the push baffle plate (6) towards the direction of the opening (54) of the baffle plate (53).
4. The tumor adsorbing clip for oncology department of claim 3, wherein: the supporting frame (13) and the second holding rod (12) are obliquely arranged, and an included angle between the supporting frame (13) and the second holding rod (12) is 120-140 degrees.
5. The tumor adsorbing clip for oncology department of claim 4, wherein: be provided with reset torsion spring (15) between first holding rod (11) and second holding rod (12), two stabilizer blades of reset torsion spring (15) are connected with the ring of first holding rod (11), second holding rod (12) respectively.
6. The tumor adsorbing clip for oncology department of claim 5, wherein: the periphery of the adsorption sheet (51) is extended downwards to form a skirt (56).
7. The tumor adsorbing clip for oncology department of claim 6, wherein: the thickness of the convex cone (62) is gradually reduced towards the tip.
8. The tumor adsorbing clip of claim 7, wherein: the upper surface of the pushing separation blade (6) is provided with a fixed sleeve (63), and a fixed column at the lower end of the push rod (3) is inserted in the fixed sleeve (63).
9. The tumor adsorbing clip for oncology department of claim 8, wherein: and the two sides of the pushing separation blade (6) are provided with a notch (64) corresponding to the connecting part (31) of the push rod (3).
10. The tumor adsorbing clip of claim 9, wherein: the connecting parts (31) at the two ends of the push rod (3) are U-shaped clamping grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210281850.8A CN114521975B (en) | 2022-03-22 | 2022-03-22 | Oncology is with tumour absorption clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210281850.8A CN114521975B (en) | 2022-03-22 | 2022-03-22 | Oncology is with tumour absorption clamp |
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| Publication Number | Publication Date |
|---|---|
| CN114521975A true CN114521975A (en) | 2022-05-24 |
| CN114521975B CN114521975B (en) | 2023-05-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210281850.8A Active CN114521975B (en) | 2022-03-22 | 2022-03-22 | Oncology is with tumour absorption clamp |
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| CN (1) | CN114521975B (en) |
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| Publication number | Publication date |
|---|---|
| CN114521975B (en) | 2023-05-30 |
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Effective date of registration: 20240408 Address after: No. 417, 4th Floor, Unit 2, Building 10, No. 605 Mutasi Road, Yanta District, Xi'an City, Shaanxi Province, 710000 Patentee after: Wang Zizhang Country or region after: China Address before: 221018 Greenland International Flower capital, No. 2, Kunlun Avenue, Yunlong District, Xuzhou City, Jiangsu Province Patentee before: Yuan Zhongqin Country or region before: China |