Closed rotary-cut needle positioning device

Abstract

The utility model discloses a closed rotary-cut needle positioning device, which belongs to the technical field of medical equipment, aims to solve the problem that the existing rotary-cut needle is inaccurate in self-inspection and positioning, and comprises a driving handle and a rotary-cut device, the driving handle is connected with the rotary-cut device in an embedded manner, a rotary-cut needle body is connected inside the rotary-cut device, and the rotary-cut needle body is connected with the rotary-cut needle body. A rotary cutting needle driving gear set is installed at one end of the rotary cutting needle body, a black bar code is engraved on the rotary cutting needle body, an identification module is installed on one side of the black bar code, a groove is formed in the side, close to the rotary cutting device, of the driving handle, and a photoelectric sensor set and a driving handle gear set are installed in the groove. The rotary cutting pin gear set corresponds to the driving handle gear set in position and is connected with the driving handle gear set in a meshed mode, and the black bar code and recognition module corresponds to the photoelectric sensor set in position.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a closed rotary cutting needle positioning device. Background Art

[0002] During the use of breast biopsy and rotary cutting systems, the self-inspection and positioning of the closed rotary cutting needle is a key technology that affects whether the product can be used normally. Before use, the outer tube of the closed rotary cutting needle needs to be positioned at the midpoint, and the starting and ending points of the inner tube are located through positioning technology. In the actual application of some closed rotary cutting needle products, because the closed rotary cutting needle calibration and positioning technology cannot meet the high-precision positioning requirements, it will cause a one-time calibration and positioning failure of the rotary cutting needle during use. Utility Model Content

[0003] The purpose of the utility model is to solve the above-mentioned problems of inaccurate self-checking and positioning through hardware drive and software coding positioning functions.

[0004] The technical solution adopted by the utility model is as follows:

[0005] A closed type peeling needle positioning device comprises a driving handle and a peeling device, wherein the driving handle is engaged with the peeling device, a peeling needle body is connected inside the peeling device, a peeling needle gear set is mounted on one end of the peeling needle body, a black bar code is engraved on the peeling needle body, an identification module is mounted on one side of the black bar code, a groove is formed on the side of the driving handle close to the peeling device, a photoelectric sensor set and a driving handle gear set are respectively mounted in the groove, the peeling needle gear set corresponds to the position of the driving handle gear set and is meshed with each other, and the black bar code and the identification module correspond to the position of the photoelectric sensor set.

[0006] Furthermore, an outer needle tube is rotatably connected inside the rotary cutting needle body, and one end of the outer needle tube located inside the rotary cutting needle body is connected to the rotary cutting needle gear set. The outer needle tube and the connecting parts of the rotary cutting needle body and the outer needle tube are respectively provided with an outer tube midpoint and a positioning mark, and an inner needle tube is rotatably connected inside the outer needle tube, and one end of the inner needle tube located inside the rotary cutting needle body is connected to the rotary cutting needle gear set.

[0007] Furthermore, a cable outlet and equidistantly arranged drive motors are respectively provided in the drive handle, and the power supply input end of the drive motor is electrically connected to the power supply output end of the cable outlet, and the drive end of the drive motor is connected to the drive handle gear set.

[0008] Furthermore, the photoelectric sensor group is composed of an OP2 sensor and an OP1 sensor, the position of the OP1 sensor corresponds to the position of the black barcode, and the position of the OP2 sensor corresponds to the position of the recognition module.

[0009] Furthermore, the driving handle gear set consists of an inner tube peeling gear, an inner tube feed gear and an outer tube positioning gear, and the inner tube peeling gear, the inner tube feed gear and the outer tube positioning gear are respectively connected to different driving motors in the driving handle.

[0010] Furthermore, the rotary cutting needle gear group is composed of a rotary cutting needle inner tube rotary cutting gear, a rotary cutting needle inner tube feed gear and a rotary cutting needle outer tube positioning gear. The inner needle tube can be driven forward and backward by the rotary cutting needle inner tube feed gear, and can also be driven by the rotary cutting operation of the rotary cutting needle inner tube rotary cutting gear.

[0011] Furthermore, the inner tube peeling gear corresponds to the position of the inner tube peeling gear of the peeling needle, the inner tube feed gear corresponds to the position of the inner tube feed gear of the peeling needle, the outer tube positioning gear corresponds to the position of the outer tube positioning gear of the peeling needle, and the above three groups of gears are all meshingly connected.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0013] 1. The photoelectric sensor detects the reflection of the light signal to complete the assembly detection of the peeling needle, making the driving handle and the peeling device a perfect combination.

[0014] 2. The outer and inner needle tubes of the rotary cutting needle body are driven by the gear set on the driving handle and the rotary cutting needle body to mesh and rotate, and the photoelectric sensor detects the positions of the three groups of black bar codes to complete the midpoint positioning function of the outer tube of the rotary cutting needle.

[0015] 3. The starting position and the ending position of the inner tube of the rotary cutting needle are located by counting the motor encoding. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is an assembly diagram of the rotary cutting needle and the driving handle of the utility model;

[0017] Figure 2 This is a structural diagram of the driving handle of the utility model;

[0018] Figure 3 This is a structural diagram of the rotary cutting needle body of the utility model;

[0019] 1-driving handle; 2-driving handle gear set; 201-inner tube peeling gear; 202-inner tube feed gear: 203-outer tube positioning gear; 3-OP2 sensor; 4-OP1 sensor; 5-black barcode; 6-identification module; 7-peeling needle body; 8-peeling needle gear set; 801-peeling needle inner tube peeling gear; 802-peeling needle inner tube feed gear; 803-peeling needle outer tube positioning gear; 9-peeling device; 10-cable outlet; 11-photoelectric sensor; 12-positioning mark; 13-outer needle tube; 14-inner needle tube; 15-midpoint of outer tube. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model. Example

[0021] like Figures 1 to 3 As shown in the figure, a closed type rotary cutting needle positioning device includes a driving handle 1 and a rotary cutting device 9, and the driving handle 1 is connected with the rotary cutting device 9 in an inlaid manner, characterized in that: a rotary cutting needle body 7 is connected inside the rotary cutting device 9, and a rotary cutting needle gear set 8 is installed at one end of the rotary cutting needle body 7, and a black bar code 5 is engraved on the rotary cutting needle body 7. There are three black bar codes, two of which are narrow bars and the middle is a wide bar (the wide bar is twice the width of the narrow bar). When rotating and positioning, rotate leftward for less than one circle to collect the wide bar signal as the starting signal, rotate to find the first narrow bar, and then rotate the outer tube, After determining the second narrow strip, it rotates in the opposite direction to return to the midpoint of the outer tube. The standard stroke is about 3500-4500. An identification module 6 is installed on one side of the black barcode 5. A groove is opened on the side of the driving handle 1 close to the peeling device 9, and a photoelectric sensor group 11 and a driving handle gear group 2 are respectively installed in the groove. The peeling needle gear group 8 corresponds to the position of the driving handle gear group 2 and is meshed with it. The black barcode 5 and the identification module 6 correspond to the position of the photoelectric sensor group 11.

[0022] An outer needle tube 13 is rotatably connected inside the rotary cutting needle body 7, and one end of the outer needle tube 13 located inside the rotary cutting needle body 7 is connected to the rotary cutting needle gear set 8. The outer needle tube 13 and the connecting parts of the rotary cutting needle body 7 and the outer needle tube 13 are respectively provided with an outer tube midpoint 15 and a positioning mark 12. An inner needle tube 14 is rotatably connected inside the outer needle tube 13, and one end of the inner needle tube 14 located inside the rotary cutting needle body 7 is connected to the rotary cutting needle gear set 8.

[0023] The driving handle 1 is provided with a cable outlet 10 and a driving motor arranged equidistantly, and the power supply input end of the driving motor is electrically connected to the power supply output end of the cable outlet 10 , and the driving end of the driving motor is connected to the driving handle gear set 2 .

[0024] The photoelectric sensor group 11 is composed of an OP2 sensor 3 and an OP1 sensor 4 . The position of the OP1 sensor 4 corresponds to the position of the black barcode 5 , and the position of the OP2 sensor 3 corresponds to the position of the recognition module 6 .

[0025] The driving handle gear set 2 consists of an inner tube peeling gear 201 , an inner tube feed gear 202 and an outer tube positioning gear 203 , and the inner tube peeling gear 201 , the inner tube feed gear 202 and the outer tube positioning gear 203 are respectively connected to different driving motors in the driving handle 1 .

[0026] The peeling needle gear set 8 consists of a peeling needle inner tube peeling gear 801, a peeling needle inner tube feed gear 802 and a peeling needle outer tube positioning gear 803. The inner needle tube 14 can be driven to move forward and backward by the peeling needle inner tube feed gear 802, and can also be driven to perform peeling by the peeling needle inner tube peeling gear 801.

[0027] The inner tube peeling gear 201 corresponds to the position of the inner tube peeling gear 801 of the peeling needle, the inner tube feed gear 202 corresponds to the position of the inner tube feed gear 802 of the peeling needle, the outer tube positioning gear 203 corresponds to the position of the outer tube positioning gear 803 of the peeling needle, and the above three sets of gears are all meshed and connected

[0028] Overall workflow: before use, the driving handle 1 and the peeling device 9 are assembled and combined, and the peeling needle assembly detection is performed on the identification module 6 through the OP2 sensor 3 infrared photoelectric tube. The peeling needle assembly detection is realized by the reflection of the light signal. After successful assembly, the peeling needle needs to be automatically positioned and calibrated before the formal sampling work. First, the outer tube is rotated and positioned by the outer tube positioning gear 203. During the rotation of the outer tube, the peeling needle outer tube positioning gear 803 on the peeling needle gear group 2 is driven. The infrared photoelectric tube of the OP1 sensor 4 is aligned with the black bar code 5 on the outer tube rotating body. Through signal acquisition, the outer tube midpoint 15 of the outer needle tube 13 is aligned with the positioning mark 12, and then the inner tube peeling gear 201 is driven to rotate to drive the peeling needle inner tube peeling gear 801 to position the inner needle tube 14. The center line of the position of the inner needle tube 14 is aligned with the positioning mark 12 by rotation. Finally, the inner tube feed gear 202 is driven to drive the peeling needle inner tube feed gear 802 to position the cutter head. After the positioning and calibration are completed, the sampling operation can be performed.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A closed type rotary cutting needle positioning device, comprising a driving handle (1) and a rotary cutting device (9), wherein the driving handle (1) and the rotary cutting device (9) are engaged and connected, characterized in that The peeling device (9) is internally connected with a peeling needle body (7), one end of the peeling needle body (7) is equipped with a peeling needle gear group (8), a black bar code (5) is engraved on the peeling needle body (7), and a recognition module (6) is installed on one side of the black bar code (5); a groove is formed on the side of the driving handle (1) close to the peeling device (9), and a photoelectric sensor group (11) and a driving handle gear group (2) are respectively installed in the groove; the peeling needle gear group (8) corresponds to the position of the driving handle gear group (2) and is meshed with each other; the black bar code (5) and the recognition module (6) correspond to the position of the photoelectric sensor group (11).

2. A closed rotary cutting needle positioning device according to claim 1, characterized in that An outer needle tube (13) is rotatably connected inside the rotary cutting needle body (7), one end of the outer needle tube (13) located inside the rotary cutting needle body (7) is connected to the rotary cutting needle gear set (8), the outer needle tube (13) and the connection portion between the rotary cutting needle body (7) and the outer needle tube (13) are respectively provided with an outer tube midpoint (15) and a positioning mark (12), the outer needle tube (13) is rotatably connected inside the inner needle tube (14), and one end of the inner needle tube (14) located inside the rotary cutting needle body (7) is connected to the rotary cutting needle gear set (8).

3. A closed rotary cutting needle positioning device according to claim 1, characterized in that: The drive handle (1) is provided with a cable outlet (10) and drive motors arranged at equal distances, respectively, and the power supply input end of the drive motor is electrically connected to the power supply output end of the cable outlet (10), and the drive end of the drive motor is connected to the drive handle gear set (2).

4. A closed rotary cutting needle positioning device according to any one of claims 1 to 3, characterized in that The photoelectric sensor group (11) is composed of an OP2 sensor (3) and an OP1 sensor (4), the position of the OP1 sensor (4) corresponds to the position of the black barcode (5), and the position of the OP2 sensor (3) corresponds to the position of the recognition module (6).

5. A closed rotary cutting needle positioning device according to claim 4, characterized in that: The driving handle gear set (2) is composed of an inner tube peeling gear (201), an inner tube feed gear (202) and an outer tube positioning gear (203), and the inner tube peeling gear (201), the inner tube feed gear (202) and the outer tube positioning gear (203) are respectively connected to three different driving motors in the driving handle (1).

6. A closed rotary cutting needle positioning device according to claim 5, characterized in that: The rotary cutting needle gear set (8) is composed of a rotary cutting needle inner tube rotary cutting gear (801), a rotary cutting needle inner tube feed gear (802) and a rotary cutting needle outer tube positioning gear (803). The inner needle tube (14) can be driven to move forward and backward by the rotary cutting needle inner tube feed gear (802), and can also be driven to perform rotary cutting by the rotary cutting needle inner tube rotary cutting gear (801).

7. A closed rotary cutting needle positioning device according to claim 6, characterized in that: The inner tube peeling gear (201) corresponds to the position of the peeling needle inner tube peeling gear (801), the inner tube feed gear (202) corresponds to the position of the peeling needle inner tube feed gear (802), the outer tube positioning gear (203) corresponds to the position of the peeling needle outer tube positioning gear (803), and the above three sets of gears are all meshingly connected.

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