Motor mounting support in closed breast rotary cutting sampling handle
By using the inverted triangular structure design of the support body and end cap, combined with the fastening sleeve and screw connection, the assembly complexity and stability issues of the motor mounting support inside the breast rotary cutter handle are solved, achieving efficient and stable assembly and equipment performance.
Patent Information
- Application Number
- CN202520470759.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-18
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-18
AI Technical Summary
The existing breast rotary cutting handle has poor assembly precision of the internal motor mounting bracket, and the assembly process is complicated, which affects the assembly efficiency and may lead to unstable equipment performance.
The design incorporates a support body and end caps. The support body has an inverted triangular mounting cavity, in which the motor assembly is installed. The assembly is connected by a set sleeve and set screws, simplifying the assembly process and improving stability.
It simplifies the assembly process, improves assembly efficiency and equipment stability, reduces the risk of performance instability caused by assembly errors, and facilitates heat dissipation and rigidity enhancement of motor components.
Smart Images

Figure CN223942512U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, and in particular to a motor mounting bracket inside a closed breast rotary cutting sampling handle. Background Technology
[0002] With the increasing incidence of breast diseases and the growing demand from patients for cosmetic results, minimally invasive breast excision surgery has gradually become the preferred method for treating benign breast lesions. This surgery utilizes a vacuum-assisted excision device, inserting the excision blade into the breast lesion through a small skin incision to cut and remove the lesion tissue. It has advantages such as being minimally invasive, precise, efficient, and aesthetically pleasing.
[0003] As a key component of the surgery, the internal motor mounting bracket and its assembly method directly affect the smoothness and outcome of the surgery. Currently, the internal motor mounting bracket of the breast cutting handle is generally assembled by using a set screw to hold the motor in place. This method has problems such as poor assembly accuracy, long adjustment time, and complicated assembly process. It not only affects the assembly efficiency of the cutting handle, but may also lead to unstable equipment performance due to assembly errors. Utility Model Content
[0004] To overcome the shortcomings of the prior art, this utility model discloses an internal motor mounting bracket for a closed breast rotary cutting sampling handle. This utility model simplifies the assembly process and improves assembly efficiency and equipment stability by setting an end cap on the bracket body.
[0005] To achieve the aforementioned objective, this utility model adopts the following technical solution:
[0006] A closed-type breast rotary cutting sampling handle with an internal motor mounting bracket includes a bracket body and an end cap. A detachable end cap is installed at one end of the bracket body. The bracket body has three mounting cavities arranged in an inverted triangular shape. The motor assembly is installed in each mounting cavity, and the output shaft of the motor assembly passes through the end cap.
[0007] The front end of the support body is provided with a fixing hole, and the end cap is installed on the fixing hole. The rear end of the support body is provided with a wire passage groove.
[0008] The inner wall of the mounting cavity is provided with through grooves, each through groove being parallel to the axis of the mounting cavity, and each through groove being distributed in a ring around the central axis of the mounting cavity.
[0009] The end cap has three through holes arranged in an inverted triangular shape, and the through holes are set in accordance with the mounting cavity. Two locking sleeves are provided at one end of the end cap facing the support body. The two locking sleeves are respectively set in two fixing holes. A motor sleeve is provided at the other end of the end cap, and the motor sleeve passes through the end cap and communicates with the central through hole.
[0010] The set sleeve has a groove on its side and a threaded set screw is provided inside the set sleeve.
[0011] The motor assembly includes a motor body and gears. The output shaft of the motor body passes through a corresponding through hole. Each output shaft of the motor body is equipped with a gear. The end of the middle motor body is set inside the motor sleeve.
[0012] The present invention relates to a closed-type breast rotary cutting sampling handle with an internal motor mounting bracket. This invention is highly practical and very convenient to use. The bracket body and end cap are fitted together, simplifying the assembly process and improving assembly efficiency and equipment stability. Multiple through slots are provided in the mounting cavity of the bracket body to facilitate heat dissipation of the motor assembly and increase the rigidity of the bracket body itself. Attached Figure Description
[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0014] Figure 2 This is a three-dimensional structural diagram of the fixed support of this utility model;
[0015] Figure 3 This is a three-dimensional structural diagram of the fixed support of this utility model;
[0016] Figure 4 This is a three-dimensional structural diagram of the end cap of this utility model;
[0017] Figure 5 This is a schematic diagram showing the connection between the end cap and the fixed support of this utility model;
[0018] Figure 6 This is a three-dimensional structural diagram of the motor assembly of this utility model;
[0019] In the diagram: 1. Support body; 101. Mounting cavity; 102. Through groove; 103. Fixing hole; 104. Wire groove; 2. End cap; 201. Motor sleeve; 202. Set sleeve; 203. Through hole; 3. Motor assembly; 301. Motor body; 302. Gear; 4. Set screw. Detailed Implementation
[0020] The present invention will be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention.
[0021] Combined with appendix Figures 1-6A closed-type breast rotary sampling handle with an internal motor mounting bracket includes a bracket body 1 and an end cap 2. One end of the bracket body 1 is fitted with a detachable end cap 2. The bracket body 1 has three mounting cavities 101 arranged in an inverted triangular shape. A motor assembly 3 is installed in each mounting cavity 101. The output shaft of the motor assembly 3 passes through the end cap 2. The clamping force of the end cap 2 further fixes the motor assembly 3 inside the bracket body 1, improving the installation stability of the motor assembly 3 and reducing the risk of equipment performance instability due to assembly errors.
[0022] The front end of the support body 1 is provided with a fixing hole 103, and the end cap 2 is installed on the fixing hole 103. The rear end of the support body 1 is provided with a wire passage groove 104, through which the wiring of the motor assembly 3 passes, so that the wiring of the motor assembly 3 can pass through without interfering with other components.
[0023] The inner wall of the mounting cavity 101 is provided with through grooves 102. Each through groove 102 is parallel to the axis of the mounting cavity 101. Each through groove 102 is distributed in a ring around the central axis of the mounting cavity 101. The through grooves 102 facilitate heat dissipation of the motor assembly 3 and increase the rigidity of the support body 1 itself.
[0024] The end cap 2 has three through holes 203 arranged in an inverted triangular shape. The through holes 203 are corresponding to the mounting cavity 101. The end cap 2 facing the support body 1 has two locking sleeves 202, which are respectively installed in the two fixing holes 103. The other end of the end cap 2 has a motor sleeve 201, which passes through the end cap 2 and communicates with the middle through hole 203.
[0025] The set sleeve 202 has a groove on its side to facilitate insertion of the set sleeve 202 into the fixing hole 103. The set sleeve 202 is provided with a threaded set screw 4. After the set screw 4 enters the set sleeve 202, it opens the set sleeve 202 and fixes the support body 1 and the end cap 2. The end of the set screw 4 does not protrude from the end of the set sleeve 202 to avoid interference between the head of the set screw 4 and the gear 302.
[0026] The motor assembly 3 includes a motor body 301 and a gear 302. The output shaft of the motor body 301 passes through the corresponding through hole 203. Each output shaft of the motor body 301 is provided with a gear 302. The end of the middle motor body 301 is set inside the motor sleeve 201. The motor sleeve 201 ensures the stability of the middle motor body 301 during operation.
[0027] The embodiment describes a closed-type breast rotary cutting sampling handle with an internal motor mounting bracket. During installation, the motor body 301 is fixed to the end cap 2. Screws are passed through the pre-set mounting holes on the end cap 2. The motor body 301 is then installed in the corresponding mounting cavity 101, and the end cap 2 is installed on the bracket body 1. The set sleeve 202 is inserted into the fixing hole 103, and the set screw 4 is screwed into the set sleeve 202 to open it, thereby fixing the bracket body 1 and the end cap 2. The end of the set screw 4 does not protrude from the end of the set sleeve 202 to avoid interference between the head of the set screw 4 and the gear 302. The clamping force of the end cap 2 further fixes the motor assembly 3 inside the bracket body 1, improving the installation stability of the motor assembly 3 and reducing the risk of equipment performance instability due to assembly errors. Then, the gear 302 is installed on each motor body 301.
[0028] The parts of this utility model not described in detail are prior art. Although this utility model has been specifically shown and introduced in conjunction with preferred embodiments, there are many methods and approaches to implement this technical solution. The above description is only a preferred embodiment of this utility model. However, those skilled in the art should understand that various changes in form and detail can be made to this utility model without departing from the spirit and scope of this utility model as defined by the appended claims, and all such changes shall be within the protection scope of this utility model.
Claims
1. A closed-type breast rotary sampling handle with an internal motor mounting bracket, comprising a bracket body (1) and an end cap (2), characterized in that: The support body (1) has a detachable end cap (2) installed at one end. The support body (1) has three mounting cavities (101) with an inverted triangular structure. The motor assembly (3) is installed in each mounting cavity (101), and the output shaft of the motor assembly (3) passes through the end cap (2).
2. The motor mounting bracket inside the closed-type breast rotary sampling handle according to claim 1, characterized in that: The support body (1) has a fixing hole (103) at the front end, and the end cap (2) is installed on the fixing hole (103). The support body (1) has a wire groove (104) at the rear end.
3. The motor mounting bracket inside the closed-type breast rotary sampling handle according to claim 1, characterized in that: The inner wall of the mounting cavity (101) is provided with through grooves (102), each through groove (102) is parallel to the axis of the mounting cavity (101), and each through groove (102) is distributed in a ring around the central axis of the mounting cavity (101).
4. The motor mounting bracket inside the closed-type breast rotary sampling handle according to claim 1, characterized in that: The end cap (2) is provided with three perforations (203) arranged in an inverted triangular shape. The perforations (203) are corresponding to the mounting cavity (101). The end cap (2) facing the support body (1) is provided with two locking sleeves (202). The two locking sleeves (202) are respectively set in the two fixing holes (103). The other end of the end cap (2) is provided with a motor sleeve (201). The motor sleeve (201) passes through the end cap (2) and communicates with the middle perforation (203).
5. The motor mounting bracket inside the closed-type breast rotary biopsy sampling handle according to claim 4, characterized in that: The set sleeve (202) has a groove on its side and a set screw (4) with threaded connection is provided inside the set sleeve (202).
6. The internal motor mounting bracket of the closed breast rotary sampling handle according to claim 1, characterized in that: The motor assembly (3) includes a motor body (301) and a gear (302). The output shaft of the motor body (301) passes through the corresponding through hole (203). Each motor body (301) has a gear (302) on its output shaft. The end of the middle motor body (301) is located inside the motor sleeve (201).