CN212972985U - Puncture biopsy needle - Google Patents
Puncture biopsy needle Download PDFInfo
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- CN212972985U CN212972985U CN202020840136.4U CN202020840136U CN212972985U CN 212972985 U CN212972985 U CN 212972985U CN 202020840136 U CN202020840136 U CN 202020840136U CN 212972985 U CN212972985 U CN 212972985U
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- needle
- puncture needle
- needle rod
- rod
- puncture
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Abstract
The utility model discloses a puncture biopsy needle, the top end of a puncture needle rod is clamped on a fixing mechanism and fixed by a fixing block, and a sampling needle rod is inserted inside the puncture needle rod; the side walls of the two corresponding sides of the fixing mechanism are fixedly connected with supporting lugs, threaded holes are vertically formed in the supporting lugs and are used for being screwed in corresponding adjusting screw rods of the supporting adjusting mechanism, and the supporting lugs slide up and down along the supporting slide rails; the bottom end of the adjusting screw rod is fixedly connected with a group of transmission gears, the two groups of transmission gears are in meshed connection with a power gear, and the power gear is installed at the center of the installation base in a relative rotating mode. The utility model discloses have and guarantee that the puncture sample is stable to be gone on and convenient sterile beneficial effect.
Description
Technical Field
The utility model relates to a medical treatment aspiration biopsy technical field, specific aspiration biopsy needle that says so.
Background
Needle biopsy is a technique of taking out a lesion tissue from a patient body by cutting, clamping, puncturing, or the like, and performing pathological examination. Biopsies vary widely depending on the difficulty of obtaining tissue, but a clear histopathological diagnosis is made for the vast majority of samples examined and is considered the final clinical diagnosis.
In the process of carrying out puncture sampling on a patient by using the traditional puncture biopsy needle, the puncture deviation is easily caused due to the influence of the outside or other factors, unnecessary pain is brought to the patient, and the traditional puncture biopsy needle is not suitable for carrying out disinfection treatment on the patient.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned weak point that exists among the prior art, the utility model aims at providing a guarantee puncture sample and stably carry out and make things convenient for sterile puncture biopsy needle.
The utility model discloses a realize that the technical scheme that above-mentioned purpose adopted is: a puncture biopsy needle comprises a puncture needle rod, a sampling needle rod, a fixing mechanism and a supporting and adjusting mechanism, wherein the bottom end of the puncture needle rod is in a sharp-pricked shape, the top end of the puncture needle rod is fixedly connected with a fixing disk body, a plurality of groups of limiting blocks are uniformly arranged on the side wall of the edge of the fixing disk body, and the interior of the puncture needle rod is in a through-hole structure and is communicated with the upper end and the lower end of the puncture needle rod;
the sampling needle rod is inserted in the puncture needle rod, a through hole-shaped mechanism is arranged in the sampling needle rod and is communicated with the upper end and the lower end of the sampling needle rod, and the top end of the sampling needle rod is communicated with a rubber air bag;
the fixing mechanism is characterized in that an installation groove is formed in the upper surface of the fixing mechanism, limit grooves are uniformly formed in the edge of the installation groove, the fixing disc body is nested in the installation groove, the limit blocks are correspondingly clamped with the limit grooves, internal threads are formed in the inner side wall of the installation groove, the fixing block is screwed in the internal threads, first through holes and second through holes are formed in the axis positions of the fixing block and the fixing mechanism respectively, support lugs are fixedly connected to the side walls of the two corresponding sides of the fixing mechanism, and threaded holes are vertically formed in the support lugs;
support adjustment mechanism including installation base and two sets of support slide rails that correspond the consolidation on the installation base, two sets of support slide rails correspond the vertical arrangement of position department and have kept relative pivoted accommodate the lead screw, accommodate the lead screw's bottom all concreties and has a set of drive gear, and the meshing is connected with power gear just between two sets of drive gear power gear installs with relative pivoted mode the central point of installation base puts, power gear, installation base central point put and all seted up the third and perforate, it slides from top to bottom along supporting the slide rail to support the ear to correspond the joint in supporting the slide rail, the screw hole connects on accommodate the lead screw soon.
And a plurality of groups of communicating holes are formed in the side wall of the bottom end of the puncture needle rod, and the communicating holes are communicated with the inner space and the outer space of the puncture needle rod.
The length of the sampling needle rod is greater than that of the puncture needle rod, the outer diameter of the sampling needle rod is the same as the inner diameter of the puncture needle rod, and the outer side wall of the sampling needle rod is tightly attached to the inner side wall of the puncture needle rod when the sampling needle rod is inserted into the puncture needle rod.
The thickness of the fixed disk body is smaller than the depth of the mounting groove, and the received limiting grooves penetrate through the upper end and the lower end of the mounting groove.
The outer side wall of the fixed block is provided with external threads matched with the internal threads arranged on the inner side wall of the mounting groove, the upper surface of the fixed block is provided with two groups of screwing holes along one diameter, and the two groups of screwing holes are circularly and symmetrically arranged relative to the fixed block.
The aperture of the first perforation is not smaller than the inner diameter of the puncture needle rod, and the apertures of the second perforation and the third perforation are not smaller than the outer diameter of the puncture needle rod.
And the top end of the supporting slide rail is fixedly connected with a limiting baffle, and the upper end and the lower end of the adjusting screw rod are respectively clamped in the limiting baffle and the mounting base and keep rotating relatively.
The threads on the two groups of adjusting screw rods are in the same direction.
The utility model has the advantages that: through the combined arrangement of the fixing mechanism and the supporting and adjusting mechanism, a doctor can be ensured to stably puncture and sample a living body for a patient, and the problems of unstable puncture force and offset of a puncture needle rod in the puncture process are avoided; meanwhile, the puncture needle rod and the sampling needle rod can be conveniently and quickly taken down from the fixing mechanism or installed, and the puncture needle rod and the sampling needle rod are conveniently disinfected.
Drawings
FIG. 1 is a schematic view of the structure of the puncture needle rod of the present invention;
FIG. 2 is a schematic structural view of a sampling needle bar of the present invention;
fig. 3 is a schematic structural view of the fixing mechanism and the fixing block of the present invention;
fig. 4 is a schematic structural view of the support adjusting mechanism of the present invention;
FIG. 5 is an enlarged detail view of portion A of FIG. 4;
FIG. 6 is a schematic structural view of the present invention after the combination of the structures;
fig. 7 is a schematic plan view of the lancet holder mounted on the fixing mechanism and the support adjusting mechanism.
In the figure: the device comprises a puncture needle rod 1, a sampling needle rod 2, a fixing mechanism 3, a fixing disc body 4, a limiting block 5, a rubber air bag 6, a mounting groove 7, a fixing block 8, a first through hole 9, a second through hole 10, a supporting lug 11, a threaded hole 12, a mounting base 13, a supporting slide rail 14, an adjusting screw rod 15, a transmission gear 16, a power gear 17 and a third through hole 18.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-7, a puncture biopsy needle comprises a puncture needle rod 1, a sampling needle rod 2, a fixing mechanism 3 and a supporting and adjusting mechanism, wherein the bottom end of the puncture needle rod 1 is in a sharp-prick shape, a fixing disc body 4 is fixedly connected to the top end of the puncture needle rod 1, a plurality of groups of limiting blocks 5 are uniformly arranged on the side wall of the edge of the fixing disc body 4, and the interior of the puncture needle rod 1 is in a through-hole structure and is communicated with the upper end and the lower end of the puncture needle rod;
the sampling needle rod 2 is inserted in the puncture needle rod 1, a through hole-shaped mechanism is arranged inside the sampling needle rod 2 and is communicated with the upper end and the lower end of the sampling needle rod 2, and the top end of the sampling needle rod 2 is communicated with a rubber air bag 6;
the upper surface of the fixing mechanism 3 is provided with a mounting groove 7, the edge of the mounting groove 7 is uniformly provided with a limiting groove, the fixing disc body 4 is nested in the mounting groove 7, the limiting block 5 is correspondingly clamped with the limiting groove, the inner side wall of the mounting groove 7 is provided with an internal thread, the fixing block 8 is screwed in the internal thread, the axle center positions of the fixing block 8 and the fixing mechanism 3 are respectively provided with a first perforation 9 and a second perforation 10, the side walls of the fixing mechanism 3 corresponding to the two sides are fixedly provided with supporting lugs 11, and the supporting lugs 11 are vertically provided with threaded holes;
support adjustment mechanism and include installation base 13 and two sets of support slide rail 14 that correspond the consolidation on installation base 13, two sets of support slide rail 14 correspond the position department vertical arrangement and have kept relative pivoted accommodate the lead screw 15, accommodate the lead screw 15's bottom all has consolidated a set of drive gear 16, the meshing is connected with power gear 17 and power gear 17 between two sets of drive gear 16 and installs the central point at installation base 13 with relative pivoted mode and put, power gear 17, install 13 central point and put and all seted up the third and perforate 18, support ear 11 and correspond the joint and slide from top to bottom along supporting slide rail 14 in supporting slide rail 14, screw hole 12 connects soon on accommodate the lead screw 15.
In the utility model, a plurality of groups of intercommunicating pores are arranged on the side wall of the bottom end of the puncture needle rod 1, and the intercommunicating pores are communicated with the inner space and the outer space of the puncture needle rod 1, thereby playing the role of stabilizing the inner pressure and the outer pressure when the puncture needle rod 1 is inserted into the human body;
the length of the sampling needle rod 2 is greater than that of the puncture needle rod 1, the outer diameter of the sampling needle rod 2 is the same as the inner diameter of the puncture needle rod 1, the outer side wall of the sampling needle rod 2 is tightly attached to the inner side wall of the puncture needle rod 1 when the sampling needle rod 2 is inserted into the puncture needle rod 1, and the sampling needle rod 2 is ensured to be introduced into the puncture needle rod 1 for stable sampling;
the thickness of the fixed disk body 4 is smaller than the depth of the mounting groove 7, and the limited grooves penetrate through the upper end and the lower end of the mounting groove 7, so that the fixed disk body 4 can be conveniently fixed through the fixed block 8;
the outer side wall of the fixed block 8 is provided with external threads which are matched with the internal threads arranged on the inner side wall of the mounting groove 7, two groups of screwing holes are formed in the upper surface of the fixed block 8 along one diameter, the two groups of screwing holes are symmetrically arranged relative to the circle of the fixed block 8, and a screwing structure is inserted into the screwing holes to be screwed when the fixed block 8 is screwed, so that the fixed block 8 can be fastened and adjusted conveniently;
the aperture of the first perforation 9 is not smaller than the inner diameter of the puncture needle bar 1, and the aperture of the second perforation 10 and the aperture of the third perforation 18 are not smaller than the outer diameter of the puncture needle bar 1;
a limiting baffle is fixedly connected to the top end of the supporting slide rail 14, so that the fixing mechanism 3 is prevented from sliding out of the top end of the supporting slide rail 14, stable installation of the adjusting screw rod 15 can be guaranteed, and the upper end and the lower end of the adjusting screw rod 15 are respectively clamped in the limiting baffle and the installation base 13 and keep rotating relatively;
the threads on the two groups of adjusting screw rods 15 are in the same direction, the power gear 17 is manually rotated to drive the transmission gear 16 to rotate along the same direction, the two groups of adjusting screw rods 15 are rotated in the same direction, and the fixing mechanism 3 and the puncture needle rod 1 fixed on the fixing mechanism are driven to move up and down through the rotation of the two groups of adjusting screw rods 15 in the same direction.
The utility model discloses a theory of operation is: when the puncture needle is used, the mounting base 13 is fixed at a position where a patient needs to puncture, the third through hole 18 corresponds to the position where the patient needs to puncture, the disinfected puncture needle rod 1 is inserted into the mounting groove 7 of the fixing mechanism 3 from top to bottom, the limiting block 5 is correspondingly clamped with the limiting groove, the sampling needle rod 2 is fixed by screwing the fixing block 8, the corresponding transmission gear 16 and the adjusting screw rod 15 are driven to rotate by the rotary power gear 17, the fixing mechanism 3 and the supporting lug 11 fixedly connected to the fixing mechanism are driven to move downwards along the supporting slide rail 14, the bottom end of the sampling needle rod 2 punctures in the patient, and after the rotary power gear 17 drives the fixing mechanism 3 to move to a specific position to ensure that the bottom end of the puncture needle rod 1 moves to a position where a tissue object to be extracted in the patient, the sampling needle rod 2 is inserted into the puncture needle rod.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. A needle biopsy needle, comprising: the puncture needle comprises a puncture needle rod (1), a sampling needle rod (2), a fixing mechanism (3) and a supporting and adjusting mechanism, wherein the bottom end of the puncture needle rod (1) is in a sharp-pricked shape; a fixed disc body (4) is fixedly connected to the top end of the puncture needle rod (1), a plurality of groups of limiting blocks (5) are uniformly arranged on the side wall of the edge of the fixed disc body (4), and the puncture needle rod (1) is internally of a through hole-shaped structure and is communicated with the upper end and the lower end of the puncture needle rod (1);
the sampling needle rod (2) is inserted into the puncture needle rod (1), a through hole-shaped mechanism is arranged inside the sampling needle rod (2) and is communicated with the upper end and the lower end of the sampling needle rod (2), and the top end of the sampling needle rod (2) is communicated with a rubber air bag (6);
the upper surface of the fixing mechanism (3) is provided with a mounting groove (7), the edge of the mounting groove (7) is uniformly provided with a limiting groove, the fixing disc body (4) is embedded in the mounting groove (7), the limiting block (5) is correspondingly clamped with the limiting groove, the inner side wall of the mounting groove (7) is provided with an internal thread, the internal thread is screwed with the fixing block (8), the axle center positions of the fixing block (8) and the fixing mechanism (3) are respectively provided with a first perforation (9) and a second perforation (10), the side wall positions of the fixing mechanism (3) corresponding to two sides are fixedly provided with a support lug (11), and the support lug (11) is vertically provided with a threaded hole (12);
support adjustment mechanism including installation base (13) and two sets of support slide rail (14) that correspond the consolidation on installation base (13), two sets of support slide rail (14) correspond the vertical arrangement of position department and have kept relative pivoted accommodate the lead screw (15), the bottom of accommodate the lead screw (15) has all consolidated a set of drive gear (16), and the meshing is connected with power gear (17) just between two sets of drive gear (16) power gear (17) are installed with relative pivoted mode the central point of installation base (13) puts, power gear (17), installation base (13) central point put and have all seted up third perforation (18), support ear (11) correspond the joint and slide from top to bottom along supporting slide rail (14) in supporting slide rail (14), screw hole (12) connect on accommodate the lead screw (15) soon.
2. A needle biopsy needle according to claim 1, wherein: the side wall of the bottom end of the puncture needle rod (1) is provided with a plurality of groups of intercommunicating pores which are communicated with the inner space and the outer space of the puncture needle rod (1).
3. A needle biopsy needle according to claim 2, wherein: the length of sample needle bar (2) is greater than the length of puncture needle bar (1), the external diameter of sample needle bar (2) with the internal diameter of puncture needle bar (1) is the same, sample needle bar (2) are pegged graft when in puncture needle bar (1) sample needle bar (2) lateral wall closely laminates with puncture needle bar (1) inside wall.
4. A needle biopsy needle according to claim 3, wherein: the thickness of the fixed disc body (4) is smaller than the depth of the mounting groove (7), and the limited grooves penetrate through the upper end and the lower end of the mounting groove (7).
5. The needle biopsy needle according to claim 4, wherein: the outer side wall of the fixing block (8) is provided with external threads matched with the internal threads arranged on the inner side wall of the mounting groove (7), the upper surface of the fixing block (8) is provided with two groups of screwing holes along one diameter, and the two groups of screwing holes are arranged in a circular symmetry mode relative to the fixing block (8).
6. A needle biopsy needle according to claim 5, wherein: the aperture of the first perforation (9) is not smaller than the inner diameter of the puncture needle rod (1), and the apertures of the second perforation (10) and the third perforation (18) are not smaller than the outer diameter of the puncture needle rod (1).
7. The needle biopsy needle according to claim 6, wherein: the top end of the supporting slide rail (14) is fixedly connected with a limiting baffle, and the upper end and the lower end of the adjusting screw rod (15) are respectively clamped in the limiting baffle and the mounting base (13) and keep rotating relatively.
8. The needle biopsy needle according to claim 7, wherein: the threads on the two groups of adjusting screw rods (15) are in the same direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020840136.4U CN212972985U (en) | 2020-05-19 | 2020-05-19 | Puncture biopsy needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020840136.4U CN212972985U (en) | 2020-05-19 | 2020-05-19 | Puncture biopsy needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212972985U true CN212972985U (en) | 2021-04-16 |
Family
ID=75420726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020840136.4U Expired - Fee Related CN212972985U (en) | 2020-05-19 | 2020-05-19 | Puncture biopsy needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212972985U (en) |
-
2020
- 2020-05-19 CN CN202020840136.4U patent/CN212972985U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210416 |
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| CF01 | Termination of patent right due to non-payment of annual fee |