CN218165339U - Rotary cutter assembly for minimally invasive breast surgery - Google Patents

Abstract

The utility model discloses a rotary cutter subassembly for mammary gland minimal access surgery, including outer sword pipe and interior sword pipe, interior sword pipe is worn to establish the outer sword is intraductal and can be followed the axial displacement of outer sword pipe, be equipped with the sample groove that is used for cutting the tissue on the outer sword pipe, be equipped with a plurality of recesses on the outer wall of outer sword pipe, the ultrasonic wave that ultrasonic equipment sent contacts to take place the reflection behind the inner wall of recess, the recess is used for reinforcing ultrasonic equipment's probe to receive ultrasonic echo signal intensity. The utility model discloses can strengthen the echo signal who passes back ultrasonic probe to the development function of reinforcing rotary-cut knife tackle spare reduces the operation degree of difficulty, avoids bringing extra misery for patient, improves the complete degree of pathological change tissue excision.

Description

Rotary cutter assembly for minimally invasive breast surgery

Technical Field

The utility model relates to the technical field of medical appliances, in particular to a rotary cutter component for minimally invasive mammary gland surgery.

Background

With the continuous popularization of ultrasound equipment, more and more clinical medical personnel use ultrasound equipment to carry out visualization work. The ultrasound guidance in the medical technology at present mainly focuses on the field of puncture. For minimally invasive breast surgery, it is easier to visualize under ultrasound because of the larger size of the components compared to the puncture needle. However, in the actual negative pressure rotary cutting process, the pathological tissues and the negative pressure and functional parts need to be clearly and visually observed, so that the sampling and the minimally invasive rotary cutting operation can be more visually completed.

Currently, a puncture technique under ultrasound image guidance is to puncture a target site to collect body fluid, tissue, cells, introduce a drug solution, or the like. In operation, a doctor places an ultrasonic probe on a part to be punctured or the body surface of the part to be punctured and inserts a needle from the side surface of the probe. On the display screen of the imaging system, the tissue structure and the cutter head can be seen, so that the puncture needle can be accurately grasped to reach the target position.

However, in the process of negative pressure rotary cutting sampling and minimally invasive surgery, the outer wall surface of the outer cutter tube is smooth, so that the incident sound waves are subjected to mirror reflection, and the smaller the included angle between the puncture needle and the ultrasonic beam is, the less the sound waves can be received by the ultrasonic probe, and the less the rotary cutter is easy to develop. Therefore, the doctor can only estimate the approximate negative pressure on the rotary cutter and the rotary cutting functional part to carry out rotary cutting for sampling according to the length and the size of the rotary cutter, which leads to wrong tissue sampling and cutting, or indirectly confirms the functional part of the rotary cutter according to the image deformation of the pathological tissue under the ultrasonic, thereby prolonging the operation time and causing extra pain to the patient.

SUMMERY OF THE UTILITY MODEL

The utility model provides a to the not enough of prior art, the utility model provides a rotary-cut knife tackle spare for mammary gland minimal access surgery, this rotary-cut knife tackle spare can improve the effect and the efficiency of operation.

The utility model discloses a following technical scheme realizes:

the utility model provides a rotary cutter subassembly for mammary gland minimal access surgery, includes outer sword pipe and interior sword pipe, interior sword pipe is worn to establish just can be followed in the outer sword pipe the axial displacement of outer sword pipe, be equipped with the sample groove that is used for cutting the tissue on the outer sword pipe, be equipped with a plurality of recesses on the outer wall of outer sword pipe, the ultrasonic wave that ultrasonic equipment sent touches take place the reflection behind the inner wall of recess, the recess is used for reinforcing ultrasonic equipment's probe to receive ultrasonic wave echo signal intensity.

Furthermore, the groove is regular and is integrally formed on the outer wall of the outer knife tube.

Further, the opening diameter d of the groove is 0.1-0.5mm.

Further, the depth of the groove is 0.05-0.3mm.

Further, the axial distance between adjacent grooves is 0.2-1mm.

Furthermore, the grooves are axially distributed, and the spacing angle between adjacent grooves on the same circumference is 10-30 degrees.

Further, the plurality of grooves form a reflecting portion, and the sampling groove is opened in the reflecting portion.

Further, the first end of the sampling groove is spaced from the first edge of the reflection part by 0.8-3mm.

Further, the second end of the sampling groove is spaced from the second edge of the reflection part by 1-4mm.

Further, the assembly further comprises a cutter head, and the cutter head is connected with the outer cutter tube.

Compared with the prior art, the utility model has the advantages of:

1. through set up the recess on the outer wall at outer sword pipe, the mammary gland supersound adopts high frequency linear array probe, and the transmission sound wave is the linear array, and is bumping the different regional regions of recess inner wall, will change the sound wave angle of incidence, and the macroscopic result of final formation is the scattering or the diffuse reflection that produce the sound wave in this groove, and the echo signal of ultrasonic probe is returned in the reinforcing transmission to the development function of reinforcing reflecting part reduces the operation degree of difficulty, avoids bringing extra misery for patient, improves pathological change tissue excision complete degree.

2. The utility model provides a recess in the rotary cutter only needs one shot forming, simple process on original basis.

Drawings

Fig. 1 is a schematic structural view of a rotary cutter assembly for minimally invasive breast surgery according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of an outer cutter tube;

FIG. 3 is an enlarged view of portion A of FIG. 2;

fig. 4 is a cross-sectional view taken along line B-B of fig. 2.

1. An outer cutter tube; 11. a sampling groove; 110. a first end; 111. a second end; 12. an outer wall; 13. a groove; 130. an inner wall; 14. a reflection section; 140. a first edge; 141. a second edge; 2. an inner cutter tube; 3. a cutter head.

Detailed Description

The following non-limiting detailed description of the present invention is provided in connection with the preferred embodiments and accompanying drawings. In the description of the present invention, it is to 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 the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

As shown in fig. 1, the utility model discloses a rotary cutter subassembly for mammary gland minimal access surgery of embodiment, including outer sword pipe 1, interior sword pipe 2 and tool bit 3, tool bit 3 and outer sword pipe 1 are connected, and interior sword pipe 2 wears to establish in outer sword pipe 1 and can follow the axial displacement of outer sword pipe 1, and interior sword pipe 2 also can be for outer sword pipe 1 rotation, is equipped with a plurality of recesses 13 on the outer wall 12 of outer sword pipe 1, and the ultrasonic wave that ultrasonic equipment sent takes place the reflection behind the inner wall 130 of contacting recess 13, and recess 13 is used for reinforcing ultrasonic equipment's probe to receive ultrasonic echo signal intensity. In the minimally invasive breast surgery, the functional area of the rotary cutter can be clearly displayed while the breast lesion tissues can be clearly displayed.

The groove 13 is regular and is integrally formed on the outer wall 12 of the outer knife tube 1, the shape of the groove 13 is not specifically limited, and the ultrasonic wave emitted by the ultrasonic equipment can be diffusely reflected. In this embodiment, the recess 13 is hemispherical.

The diameter d of the opening of the groove 13 is 0.1-0.5mm, and the depth h of the groove 13 is 0.05-0.3mm.

The outer wall 12 is provided with a sampling slot 11 for cutting tissue, and the sampling slot 11 includes a first end 110 and a second end 111.

The plurality of grooves 13 form a reflecting part 14, the sampling groove 11 is arranged in the reflecting part 14, and the interval L1 between the first end 110 of the sampling groove 11 and the first edge 140 of the reflecting part 14 is 0.8-3mm; the interval L2 between the second end 111 of the sampling groove 11 and the second edge 141 of the reflecting part 14 is 1-4mm, so that the sampling groove 11 can be clearly developed on the display screen under the action of ultrasonic waves.

The grooves 13 are axially distributed on the outer wall 12 and are axially distributed at the same time, the axial distance L between every two adjacent grooves 13 is 0.2-1mm, and the interval angle a between every two adjacent grooves 13 on the same circumference is 10-30 degrees.

When the ultrasonic probe is used, ultrasonic waves collide in the groove 13 at the reflecting part 14 to emit unnecessary reflection once, the reflected waves are turned to the receiving area of the ultrasonic probe, as shown in the x direction of the ultrasonic wave in fig. 3, for incident sound waves at the edge of the groove 13, reflection occurs once or even for multiple times, and the reflected sound waves can be effectively transmitted to the ultrasonic probe. In this example, the mammary gland ultrasound adopts a high-frequency linear array probe, as shown in fig. 3, the ultrasonic wave is transmitted along the y direction, the acoustic wave is transmitted as a linear array, the incident angle of the acoustic wave is changed when the ultrasonic wave hits different areas of the inner wall of the groove 13, and the finally formed macroscopic result is that scattering or diffuse reflection of the acoustic wave is generated at the groove 13, and the echo signal transmitted back to the ultrasonic probe is enhanced, so that the developing function of the reflecting part 14 is enhanced, the difficulty of the operation is reduced, extra pain of a patient is avoided, the complete degree of excision of lesion tissues is improved, and the effect and efficiency of the minimally invasive mammary gland surgery are improved.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. The utility model provides a rotary cutter subassembly for mammary gland minimal access surgery, its characterized in that, includes outer sword pipe (1) and interior sword pipe (2), interior sword pipe (2) are worn to establish and just can be followed in outer sword pipe (1) the axial displacement of outer sword pipe (1), be equipped with sample groove (11) that are used for cutting the tissue on outer sword pipe (1), be equipped with a plurality of recesses (13) on outer wall (12) of outer sword pipe (1), the ultrasonic wave that ultrasonic equipment sent contacts to take place the reflection behind inner wall (130) of recess (13), recess (13) are used for strengthening ultrasonic equipment's probe and receive ultrasonic echo signal intensity.

2. The rotary cutter assembly according to claim 1, wherein the recess (13) is regular and integrally formed on the outer wall (12) of the outer cutter tube (1).

3. The rotary cutter assembly according to claim 1, wherein the recess (13) has an opening diameter d of 0.1-0.5mm.

4. The rotary cutter assembly according to claim 1, wherein the depth of the recess (13) is 0.05-0.3mm.

5. A rotary cutter assembly according to claim 1, wherein the axial distance between adjacent recesses (13) is 0.2-1mm.

6. The rotary cutter assembly according to claim 1, wherein the plurality of flutes (13) are axially spaced at an angular interval of 10 ° to 30 ° between adjacent flutes (13) on the same circumference.

7. The rotary shaver assembly according to claim 1, wherein the plurality of recesses (13) form a reflecting portion (14), and the sampling groove (11) opens in the reflecting portion (14).

8. The rotary shaver assembly of claim 7, wherein the first end (110) of the sampling groove (11) is spaced from the first edge (140) of the reflector (14) by 0.8-3mm.

9. The rotary shaver assembly of claim 7, wherein the second end (111) of the sampling groove (11) is spaced from the second edge (141) of the reflector (14) by 1-4mm.

10. The rotary cutter assembly according to claim 1, further comprising a cutter head (3), wherein the cutter head (3) is connected to the outer cutter tube (1).

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