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CN-118986469-B - Calculus stripping device

CN118986469BCN 118986469 BCN118986469 BCN 118986469BCN-118986469-B

Abstract

The calculus removing device of the present invention comprises a removing mechanism, an outer sheath, a handle grip and a control mechanism. The peeling mechanism comprises a peeling end and a connecting part, wherein the peeling end is arranged at the far end of the connecting part, the near end of the connecting part is connected with the control mechanism, the peeling mechanism is arranged in the outer sheath tube, and the handle holding part is arranged at the near end of the outer sheath tube. After entering the cavity, the control mechanism controls the stripping end to enter the cavity through the connecting part and spread, and stripping treatment is carried out on the attached stones. The stripping end is made of medical elastic materials, so that the stripping end has good strength, can ensure the stripping effect, has deformability, can generate moderate elastic deformation when the strength is overlarge, prevents accidental damage to peripheral tissues caused by overlarge strength or sharp edges, and is safer in clinical use.

Inventors

  • ZHOU XING
  • SU WENYU
  • XU HUAPING
  • WANG YUE

Assignees

  • 广州迪克医疗器械有限公司

Dates

Publication Date
20260505
Application Date
20230518

Claims (20)

  1. 1. The calculus removing device is characterized in that the calculus removing device (100) comprises a removing mechanism (1), an outer sheath tube (2), a handle holding part (3) and a control mechanism (4); A. The peeling mechanism (1) comprises a peeling end (11) and a connecting part (12), wherein the peeling end (11) is arranged at the far end of the connecting part (12), the near end of the connecting part (12) is connected with the control mechanism (4), the peeling end (11) is made of medical elastic materials, the peeling end (11) has enough strength after being unfolded, can effectively peel off a joint cavity and surrounding tophus, and can generate moderate elastic deformation when the strength is overlarge due to the elastic deformation capacity, so as to prevent accidental damage of surrounding tissues caused by overlarge strength or sharp edges; B. The peeling mechanism (1) is arranged in the outer sheath tube (2), the handle holding part (3) is arranged at the proximal end of the outer sheath tube (2), the peeling end (11) is ring-shaped after being unfolded, no sharp edge exists, the shape and the size of the peeling end (11) are adjusted in real time through the control mechanism (4), when the extending length of the peeling end (11) is small, the shape of the peeling end (11) entering a body is small, the working length of the peeling end (11) is correspondingly small, the peeling force is increased, when the extending length of the peeling end (11) is increased, the shape of the peeling end (11) entering the body is correspondingly increased, the working length of the peeling end (11) is correspondingly large, and the peeling force is correspondingly small; C. After entering the cavity, the control mechanism (4) controls the stripping end (11) to enter the cavity and spread through the connecting part (12) so as to strip the attached stones.
  2. 2. The stone removal device of claim 1, wherein said removal end (11) is formed of a smooth wire-like material.
  3. 3. The stone removal device of claim 1, wherein the removal end (11) is formed from a smooth round wire, or a smooth flat wire, or a smooth profiled wire.
  4. 4. The device of claim 1, wherein the elastic medical material is medical stainless steel, medical shape memory alloy, medical polymer material, or medical composite material.
  5. 5. The stone removal apparatus as claimed in claim 4, wherein said removal end (11) is a member that can be pre-configured to different shapes to accommodate different cavity shapes.
  6. 6. The device of claim 5, wherein the peeling end (11) is made of medical shape memory alloy, and the peeling end (11) is compressed and placed in the channel of the outer sheath (2) when the device is outside the body, and after entering the cavity, the peeling end (11) automatically expands under the action of body temperature, returns to a preset shape, and peels off the attached stones.
  7. 7. The stone removal apparatus as claimed in claim 1, wherein said manipulation mechanism (4) adjusts the space in which said removal end (11) opens the cavity by adjusting the extension length of said removal end (11).
  8. 8. The stone removal device of claim 1, wherein said removal end (11) has rounded edges.
  9. 9. The stone removal apparatus as claimed in claim 8, wherein said removal end (11) is flat in cross-section.
  10. 10. The stone removal device of claim 1, wherein the stone removal device (100) further comprises a restraining/locking device (5).
  11. 11. The stone removal device of claim 1, wherein said stone removal device (100) further comprises an illumination device (6).
  12. 12. The stone removal apparatus as claimed in claim 11, wherein said illumination device (6) includes a light source (61), a control system (62) and power/circuitry (63), said light source (61) being connected and disconnected to said power/circuitry (63) via said control system (62).
  13. 13. The stone removal apparatus as set forth in claim 12, wherein the color of said light source (61) is configured to be different colors as desired, and wherein the switching between the different colors is accomplished by said control system (62).
  14. 14. The stone removal apparatus as claimed in claim 13, wherein said light source (61) is an LED light source disposed at a distal end of said outer sheath (2).
  15. 15. The stone removal device of claim 1, wherein said stone removal device (100) further comprises a viewing device (7).
  16. 16. The stone removal apparatus as claimed in claim 15, wherein said viewing device (7) is an imaging system (71).
  17. 17. The calculus removing device according to claim 16, wherein the image pickup system (71) includes a lens module (71-1), an illumination module (71-2), a signal processing and transmission module (71-3), and a power circuit module (71-4), and wherein an image and a video observed by the lens module (71-1) in a light field of the illumination module (71-2) are processed by the signal processing and transmission module (71-3) and then output to the display system (200) for display.
  18. 18. The stone removal device of claim 1, wherein the stone removal device (100) further comprises a vibration device (8).
  19. 19. The stone removal apparatus as set forth in claim 18, wherein said vibration means (8) is an acoustic vibration means (81), said acoustic vibration means (81) comprises a vibration source (81-1) and a transducer (81-2), said transducer (81-2) is connected to a proximal end of said connection portion (12), said connection portion (12) is made of a rigid material, and is capable of transmitting a vibration wave generated by said vibration source (81) to said removal end (11), driving said removal end (11) to vibrate, and treating an attached stone.
  20. 20. The stone removal apparatus as claimed in claim 18, wherein the vibration frequency of said vibration means (8) is in the range of 1000 times/sec to 50000 times/sec.

Description

Calculus stripping device Technical Field The invention relates to a surgical instrument, in particular to a calculus removing device used in calculus removing operation. Background For rheumatic patients, because of high uric acid, tophus is easily formed at the joint part, so that severe joint pain is caused, and the tophus needs to be taken out to relieve the pain. It is now common to surgically peel off the tophus attached to the articular cartilage, or the bursa, or the tissues surrounding the joint with the aid of an endoscope. Since the tophus is generally attached to the articular cartilage, the burs, or tissues around the joints and has a relatively large adhesive force, a currently-used peeling tool is a curette, and the tophus is physically peeled from the attached matter by the scraping action of the curette. To ensure the stripping effect of the curette, the curette is typically made of a rigid material and the edge is typically provided with a cutting edge. Therefore, accidental injury is easily caused to the articular cartilage attached to the tophus, or the bursa, or the tissues around the joints during the peeling process. Therefore, the invention aims to provide a safer and noninvasive tophus stripping device, which can reduce the risk of damaging surrounding tissues as far as possible while ensuring the stripping effect. Disclosure of Invention According to the calculus stripping device, the smooth elastic stripping end is arranged, so that the stripping effect is ensured, meanwhile, the elastic material design is adopted, when the force is overlarge, slight elastic deformation can be generated, accidental damage to peripheral tissues caused by overlarge force or sharp edges is effectively prevented, and the calculus stripping device is safer in clinical use. The calculus removing device 100 of the present invention is characterized in that the calculus removing device 100 comprises a removing mechanism 1, an outer sheath 2, a handle grip 3 and a control mechanism 4; A. the peeling mechanism 1 comprises a peeling end 11 and a connecting part 12, wherein the peeling end 11 is arranged at the distal end of the connecting part 12, and the proximal end of the connecting part 12 is connected with the control mechanism 4; B. The peeling mechanism 1 is arranged in the outer sheath tube 2, and the handle holding part 3 is arranged at the proximal end of the outer sheath tube 2; C. After entering the cavity, the control mechanism 4 controls the stripping end 11 to enter the cavity and spread through the connecting part 12, and stripping treatment is carried out on the attached stones. The peeling end 11 is usually in a shape of oval or the like with a smooth outline after being unfolded, and has no sharp corners or edges, thereby avoiding damage to peripheral tissues during the unfolding process. The connecting portion 12 is typically made of a rigid material, and the connecting portion 12 is not deformed during the pushing of the peeling end 11 from the sheath 2 by the handling mechanism 4, and has a good delivery force. The peeling end 11 has enough strength after being unfolded, and can effectively peel off the joint cavity and the tophus around the joint cavity. The peel end 11 is made of a smooth wire-like material. The stripping end 11 is made of smooth round wire, or smooth flat wire, or smooth profiled wire. Smooth filamentary material, due to its smooth profile, does not harm surrounding tissue while ensuring rigidity and adequate planing and stripping capabilities. The peeling end 11 is made of a medical elastic material. The medical elastic material not only has good strength, can ensure the stripping effect, but also has the deformability, not only can the stripping end 11 be compressed in the outer sheath tube 2 and can be well unfolded after being pushed out, but also can generate moderate elastic deformation when the strength is overlarge due to the elastic deformability, so that the accidental damage of peripheral tissues caused by overlarge strength or sharp edges is prevented, and the clinical use is safer. The medical elastic material is medical stainless steel, medical shape memory alloy, medical polymer material or medical composite material. Medical composites may generally be manufactured from a composite of different elastic materials. The applicant has described in detail only the above-mentioned several medical elastic materials, and in practical applications, those skilled in the art can select other medical elastic materials to manufacture according to the needs, and the applicant does not exemplify the materials herein, but does not depart from the scope of the application. The stripping end 11 is a component that can be preset to different shapes to accommodate different cavity shapes. The stripping end 11 can be preset into various shapes such as a circle, an ellipse, a petal shape, a polygon and the like so as to adapt to the requirements of different cavity shapes