CN219837064U - Reaming tool for outer cutter pipe assembly - Google Patents
Reaming tool for outer cutter pipe assembly Download PDFInfo
- Publication number
- CN219837064U CN219837064U CN202321269858.9U CN202321269858U CN219837064U CN 219837064 U CN219837064 U CN 219837064U CN 202321269858 U CN202321269858 U CN 202321269858U CN 219837064 U CN219837064 U CN 219837064U
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- Prior art keywords
- cutter
- guide
- punch
- cutter tube
- outer cutter
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- 238000009434 installation Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 7
- 238000001574 biopsy Methods 0.000 description 3
- 210000000481 breast Anatomy 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 208000030270 breast disease Diseases 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
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Abstract
The utility model discloses an outer cutter tube assembly reaming tool which comprises a fixed block, a cutter holder and a punch, wherein the punch enters the cutter tail of an outer cutter tube to form a flaring; the shaft hole wall of the tool apron is provided with a step ring groove, the outer side of the step ring groove is provided with a plurality of guide blocks, and the guide blocks are provided with guide holes along the axial direction; the end of the punch is provided with a working conical surface for forming the flaring, the circumferential outer wall of the punch is also provided with a guide rod, the outer diameter of the guide rod is smaller than or equal to the inner diameter of the guide hole, and the guide rod can extend into the guide hole, so that the punch and the outer cutter tube form concentric positioning. The utility model is convenient for the installation of the inner and outer guide pipes and improves the assembly efficiency, the flaring structure is arranged, the inner cutter pipe can be easily aligned to the pipe orifice of the outer cutter pipe, the guiding function is arranged, and the concentricity of the flaring and the pipe axis of the outer cutter pipe can be ensured, so that the accuracy of the concentricity of the inner cutter pipe is greatly improved during guiding placement.
Description
Technical Field
The utility model relates to the technical field of medical instruments, in particular to an outer cutter tube assembly reaming tool.
Background
The breast biopsy product is equipment which replaces the traditional manual operation in clinical use. Compared with the traditional manual operation, the surgical operation has the advantages of small incision, high operation efficiency and capability of relieving the pain of patients, and is widely applied to the operation of breast diseases.
The breast biopsy product comprises an outer cutter tube and an inner cutter tube, and when the breast biopsy product is used, the inner cutter tube is arranged inside the outer cutter tube to form a concentric circle structure. The inner diameter of the outer cutter tube and the outer diameter of the inner cutter tube are smaller in size clearance, the inner cutter tube is placed in the outer cutter tube to be in a moving fit process, the inner and outer catheters are not concentric due to the fact that the inner cutter tube is easy to deviate from the concentric position, the inner cutter tube needs to be kept to rotate at a high speed, the rotating state cannot be guaranteed due to the fact that the eccentric structure is not capable of guaranteeing the rotating state, and therefore the operation process is forced to stop.
At present, an inner cutter tube is placed in an outer cutter tube, the two fixing devices are kept concentric, the outer cutter tube and the inner cutter tube are respectively arranged on the two fixing devices, and then the two fixing devices are moved relatively. However, the mode is that the inner diameter difference is smaller, the inner cutter tube enters the outer cutter tube and is difficult to align with the tube orifice, in the moving process, even if the inner cutter tube is concentric before moving, the inner cutter tube is not concentric in the moving process due to factors such as moving errors, guiding errors and the like, and two fixing devices are required to be adjusted for multiple times, so that the whole imbedding process is complex and long in time.
Disclosure of Invention
In order to solve the defects in the prior art, the utility model provides the reaming tool for the outer cutter pipe assembly, which is convenient for installing the inner and outer guide pipes and improving the assembly efficiency, is provided with the flaring structure, can lead the inner cutter pipe to be easily aligned with the pipe orifice of the outer cutter pipe, is provided with the guiding function, and can ensure the concentricity of the flaring and the pipe axis of the outer cutter pipe, thereby greatly improving the concentricity of the inner cutter pipe during guiding and placing.
In order to achieve the technical purpose, the utility model adopts the following technical scheme: the outer cutter tube assembly reaming tool comprises a fixed block used for fixing the cutter body of the outer cutter tube and a cutter holder used for fixing the cutter tail of the outer cutter tube, wherein a punch is arranged at the other end of the cutter holder in a stretching-in mode, and the punch enters the cutter tail of the outer cutter tube to form a flaring;
the axial hole wall of the tool apron is provided with a step ring groove, the outer side of the step ring groove is provided with a plurality of guide blocks, and the guide blocks are provided with guide holes along the axial direction; the end of the punch is provided with a working conical surface for forming a flaring, the circumferential outer wall of the punch is also provided with a guide rod, the outer diameter of the guide rod is smaller than or equal to the inner diameter of the guide hole, and the guide rod can extend into the guide hole, so that the punch and the outer cutter tube form concentric positioning.
Further, the number of the guide blocks is 3, the 3 guide blocks are uniformly distributed on the circumference, the number of the guide holes is 3, and the number of the guide rods is 3 and corresponds to the 3 guide holes one by one.
Further, the cutter tail of the outer cutter tube is arranged in the shaft hole of the cutter holder, and the outer end face of the cutter tail is positioned in the step ring groove.
Further, a guide head is arranged at the end part of the punch and connected with the small diameter surface of the working conical surface, and the outer diameter of the guide head is smaller than the inner diameter of the outer cutter tube.
Further, one end of the fixing block, which is far away from the tool apron, is fixed with a tool bit fixing seat, a fixing strip is arranged in the tool bit fixing seat, a fixing hole is formed in the fixing strip, a flaring is formed in the outer end of the fixing hole, and a tool bit of the outer tool pipe penetrates through the flaring to be fixed in the fixing hole.
Further, the fixing block is provided with a long groove, and the cutter body of the outer cutter tube is arranged in the long groove.
In summary, the present utility model achieves the following technical effects:
the flaring form is arranged at the cutter tail of the outer cutter tube, so that a guiding effect is provided for the inner cutter tube, and the diameter difference between the inner guide tube and the outer guide tube is increased, so that the inner cutter tube can conveniently enter the outer cutter tube;
the guide rod of the punch and the guide hole of the tool apron are arranged, so that the punch and the outer cutter tube keep concentricity during working, the flaring form is uniform and non-inclined and concentric with the shaft hole of the outer cutter tube, and the precision of the inner cutter tube entering guide is further ensured.
Drawings
FIG. 1 is a schematic diagram of a reaming tool for an outer cutter pipe assembly according to an embodiment of the present utility model;
FIG. 2 is a schematic cross-sectional view of FIG. 1;
FIG. 3 is a schematic view of an outer cutter tube and a cutter holder;
FIG. 4 is a side view of FIG. 3;
FIG. 5 is a schematic view of the positional relationship among the outer cutter tube, the cutter holder, and the punch;
FIG. 6 is a partial schematic view of an outer cutter tube;
fig. 7 is a schematic view of a tool bit holder.
Detailed Description
The present utility model will be described in further detail with reference to the accompanying drawings.
The present embodiment is only for explanation of the present utility model and is not to be construed as limiting the present utility model, and modifications to the present embodiment, which may not creatively contribute to the present utility model as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present utility model.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
Examples:
the outer cutter tube assembly reaming tool schematic diagram shown in fig. 1 is used for outer cutter tube assembly reaming, and comprises a fixing block 1 used for fixing a cutter body of an outer cutter tube 4 and a cutter holder 2 used for fixing a cutter tail of the outer cutter tube 4, wherein the other end of the cutter holder 2 stretches into a punch 3, the punch 3 enters into the cutter tail of the outer cutter tube 4 to form a flaring, the flaring is horn-shaped, so that an inner cutter tube (not shown) is conveniently led in, and a guiding effect is provided for the inner cutter tube.
Fig. 2 is a schematic cross-sectional view of fig. 1, fig. 3 is a schematic view of an outer cutter tube 4 and a cutter holder 2, fig. 4 is a side view of fig. 3, a stepped ring groove 201 is formed in a shaft hole wall of the cutter holder 2, a plurality of guide blocks 202 are arranged on the outer side of the stepped ring groove 201, and a guide hole 203 along the axial direction is formed in the guide blocks 202; referring to fig. 5, the end of the punch 3 is provided with a working conical surface 303 for forming a flare, the circumferential outer wall of the punch 3 is further provided with a guide rod 301, the outer diameter of the guide rod 301 is smaller than or equal to the inner diameter of the guide hole 203, and the guide rod 301 can extend into the guide hole 203, so that the punch 3 and the outer cutter tube 4 form concentric positioning. The number of the guide blocks 202 is 3, the 3 guide blocks 202 are circumferentially and uniformly distributed, the number of the guide holes 203 is 3, the number of the guide rods 301 is 3, circumferentially and uniformly distributed, and the guide rods correspond to the 3 guide holes 203 one by one.
When the punch 3 arrives, the 3 guide rods 301 enter the three guide holes 203 respectively, so that the punch 3 and the tool holder 2 are concentric, no inclination angle is ensured between the punch 3 and the tool holder 2, and the outer cutter tube 4 extends into the shaft hole of the tool holder 2 and is tightly attached to the shaft hole, so that the punch 3 and the outer cutter tube 4 are concentric, and the flaring for opening the outer cutter tube 4 when the punch 3 works is ensured to be uniform and not to deviate, and the accurate guiding is ensured when the inner cutter tube enters the outer cutter tube.
The guide rods 301 uniformly distributed on the 3 circumferences of the punch head are arranged, so that the work of the punch head is not affected, the guide holes of the tool apron 2 are matched, the positioning function can be achieved, meanwhile, the guide holes are formed in the tool apron 2, do not interfere with the outer cutter tube 4, and the concentricity between the outer cutter tube 4 and the punch head 3 can be guaranteed.
As shown in fig. 5, the position relationship among the outer cutter tube 4, the cutter holder 2 and the punch 3 is schematically shown, the cutter tail of the outer cutter tube 4 is arranged in the shaft hole of the cutter holder 2, the outer end surface of the cutter tail is positioned in the step ring groove 201, the inner diameter of the step ring groove 201 is larger than the inner diameter of the shaft hole, and enough space is provided for flaring work. After the punch 3 is operated, the tail end of the outer cutter tube 4 is expanded to form a horn-like structure 402 as shown in fig. 6, which is in the form of a flare to provide a guide for the entry of the inner cutter tube.
As shown in fig. 5, the end of the punch 3 is provided with a guide head 302, the guide head 302 is connected to the small diameter surface of the working conical surface 303, and the outer diameter of the guide head 302 is smaller than the inner diameter of the outer cutter tube 4, thereby playing a role in guiding the advance.
As shown in fig. 1, one end of the fixing block 1, which is far away from the tool holder 2, is fixed with a tool bit fixing seat 6, as shown in fig. 7, which is a front view of the tool bit fixing seat 6, a fixing strip 601 is arranged in the tool bit fixing seat 6, a fixing hole 602 is formed in the fixing strip 601, a flaring 603 is arranged at the outer end of the fixing hole 602, and a tool bit 401 of the outer tool pipe 4 passes through the flaring 603 and is fixed in the fixing hole 602. The flaring 401 is convenient for the cutter head 401 to enter, and the thickness of the fixing hole 602 is smaller for fixing the cutter tip.
As shown in fig. 1, the fixing block 1 is provided with a long groove 101, and the cutter body of the outer cutter tube 4 is arranged in the long groove 101 to play a role in fixing.
During the use of the product, the inner cutter tube needs to enter the outer cutter tube 4. Because the dimensional clearance between the inner diameter of the outer cutter tube and the outer diameter of the inner cutter tube is relatively small, the outer cutter tube is easy to deviate from a concentric position in the moving fit process. The utility model needs a guiding structure at the end of the outer cutter pipe, which is convenient for the inner cutter pipe to enter the inner part of the outer cutter pipe. The utility model can conveniently obtain the guide structure for expanding the horn for the outer cutter tube.
The detailed use process is as follows:
the outer cutter tube 4 is fixed by the cutter holder 2, the fixing block 1 and the cutter head fixing seat 6;
the cutter tail of the outer cutter tube 4 is kept in the step ring groove of the cutter holder 2;
the guide head 302 of the punch 3 extends into the tool holder 2, the fixing rod 301 enters into the guide holes 203 during the gradual movement of the punch 3, if the punch 3 is not concentric with the tool holder 2, the 3 fixing rods 301 cannot completely enter into the 3 guide holes 203, and the angle of the punch needs to be readjusted to enter again;
after the punch 3 is in place, the blade tail is expanded to form a horn-like structure 402.
The foregoing description is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model in any way, and any simple modification, equivalent variation and modification made to the above embodiments according to the technical principles of the present utility model are within the scope of the technical solutions of the present utility model.
Claims (6)
1. An outer knife tube assembly reaming frock, its characterized in that: the cutter comprises a fixed block (1) for fixing a cutter body of an outer cutter tube (4) and a cutter holder (2) for fixing a cutter tail of the outer cutter tube (4), wherein the other end of the cutter holder (2) stretches into a punch (3), and the punch (3) enters into the cutter tail of the outer cutter tube (4) to form a flaring;
a step ring groove (201) is formed in the shaft hole wall of the tool apron (2), a plurality of guide blocks (202) are arranged on the outer side of the step ring groove (201), and guide holes (203) along the axial direction are formed in the guide blocks (202); the end of the punch (3) is provided with a working conical surface (303) for forming a flaring, the circumferential outer wall of the punch (3) is also provided with a guide rod (301), the outer diameter of the guide rod (301) is smaller than or equal to the inner diameter of the guide hole (203), and the guide rod (301) can extend into the guide hole (203) so that the punch (3) and the outer cutter tube (4) form concentric positioning.
2. The outer cutter tube assembly reaming tool according to claim 1, wherein: the number of the guide blocks (202) is 3, 3 guide blocks (202) are uniformly distributed on the circumference, the number of the guide holes (203) is 3, and the number of the guide rods (301) is 3 and corresponds to 3 guide holes (203) one by one.
3. The outer cutter tube assembly reaming tool according to claim 1, wherein: the cutter tail of the outer cutter tube (4) is arranged in the shaft hole of the cutter holder (2), and the outer end face of the cutter tail is positioned in the step ring groove (201).
4. The outer cutter tube assembly reaming tool according to claim 1, wherein: the end part of the punch head (3) is provided with a guide head (302), the guide head (302) is connected to the small diameter surface of the working conical surface (303), and the outer diameter of the guide head (302) is smaller than the inner diameter of the outer cutter tube (4).
5. The outer cutter tube assembly reaming tool according to claim 1, wherein: one end of the fixed block (1) away from the tool apron (2) is fixed with a tool bit fixing seat (6), a fixing strip (601) is arranged in the tool bit fixing seat (6), a fixing hole (602) is formed in the fixing strip (601), a flaring (603) is formed in the outer end portion of the fixing hole (602), and a tool bit (401) of the outer tool pipe (4) penetrates through the flaring (603) to be fixed in the fixing hole (602).
6. The outer cutter tube assembly reaming tool according to claim 1, wherein: the fixing block (1) is provided with a long groove (101), and the cutter body of the outer cutter tube (4) is arranged in the long groove (101).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321269858.9U CN219837064U (en) | 2023-05-23 | 2023-05-23 | Reaming tool for outer cutter pipe assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321269858.9U CN219837064U (en) | 2023-05-23 | 2023-05-23 | Reaming tool for outer cutter pipe assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219837064U true CN219837064U (en) | 2023-10-17 |
Family
ID=88305915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321269858.9U Active CN219837064U (en) | 2023-05-23 | 2023-05-23 | Reaming tool for outer cutter pipe assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219837064U (en) |
-
2023
- 2023-05-23 CN CN202321269858.9U patent/CN219837064U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |