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CN-118806353-B - Pericardium traction exposure device for cardiac surgery minimally invasive surgery

CN118806353BCN 118806353 BCN118806353 BCN 118806353BCN-118806353-B

Abstract

The invention provides a pericardium traction exposure device for minimally invasive cardiac surgery, which relates to the technical field of medical appliances and comprises an expansion ring and a traction assembly arranged on the expansion ring, wherein the expansion ring is of a deformable elastic ring structure, and can adaptively and gently and uniformly expand pericardium tissues after being inserted into a pericardium cavity. The number of the traction components is multiple, and the traction components are uniformly arranged on the outer periphery of the expansion ring along the circumferential direction, and the dry traction components cooperate to provide more uniform and stable traction for pericardial tissues so as to effectively expose hearts, provide clearer operation vision for doctors, simplify operation steps, reduce operation complexity and improve the overall efficiency and safety of operation. In addition, after the pericardial tissue is pulled, the expansion ring and the traction assembly do not need to pass through the chest wall, so that an additional operation incision is avoided, and the postoperative recovery of a patient is facilitated.

Inventors

  • YAO QING

Assignees

  • 首都医科大学附属北京天坛医院

Dates

Publication Date
20260508
Application Date
20240815

Claims (8)

  1. 1. A pericardium traction exposure device for cardiac surgery minimally invasive surgery is characterized by comprising an expansion ring and traction components arranged on the expansion ring, wherein the expansion ring is of a deformable elastic ring structure, the number of the traction components is multiple groups, the traction components are uniformly arranged on the outer periphery of the expansion ring along the circumferential direction of the expansion ring and used for traction of pericardium tissues to expose hearts, traction adjusting wires are arranged on the outer periphery of the expansion ring and used for adjusting the positions and postures of the expansion ring, and the traction components comprise traction antennae, the number of the traction antennae is two and are symmetrically arranged about the radial extension line of the expansion ring.
  2. 2. A pericardial traction exposure apparatus for minimally invasive cardiac surgery according to claim 1, wherein an angle between the traction antennas is 40 ° -50 °.
  3. 3. A pericardial traction exposure apparatus for minimally invasive cardiac surgery according to claim 1, wherein corners of the traction antenna are rounded.
  4. 4. A pericardial traction exposure device for minimally invasive cardiac surgery according to claim 1, wherein the expansion ring is 4-8cm in diameter.
  5. 5. A pericardial traction exposure apparatus for minimally invasive cardiac surgery according to claim 1, wherein the length of the traction adjustment wire is 15cm-25cm.
  6. 6. The pericardial traction exposure device for minimally invasive cardiac surgery according to claim 1, further comprising a transmission mechanism comprising a transmission barrel and a push rod, the transmission barrel having a sliding cavity with two open ends, a storage location being provided at a first end of the sliding cavity for storing an expansion ring in a compressed state, the push rod being inserted from a second end of the sliding cavity and in close engagement with the sliding cavity, an external force driving the push rod to move along the sliding cavity to drive the expansion ring out of the storage location.
  7. 7. The pericardial traction exposure apparatus for minimally invasive cardiac surgery according to claim 6, wherein the delivery mechanism further comprises a reset assembly, wherein the reset assembly is respectively connected to the delivery barrel and the pushrod for limiting a displacement range of the pushrod and for driving the pushrod to return to a home position after the pushrod completes a pushing motion.
  8. 8. The pericardial traction exposure device for minimally invasive cardiac surgery of claim 6 wherein the outer wall of the delivery cartridge is provided with a slip-resistant assembly.

Description

Pericardium traction exposure device for cardiac surgery minimally invasive surgery Technical Field The invention relates to the technical field of medical appliances, in particular to a pericardium traction exposure device for cardiac surgery minimally invasive surgery. Background The heart of the human body is surrounded by a layer of cystic fibrous membrane, which is tough in texture called the pericardium, which completely surrounds the heart. In minimally invasive heart surgery, the pericardial cavity needs to be dissected and then the pericardial tissue suspended to reveal the heart. The operation can be performed under direct view with a small incision, with the aid of thoracoscopy or entirely under thoracoscopy. At present, the existing pericardium suspension technology mainly adopts a suspension wire with a needle, in minimally invasive surgery, due to narrow surgical field, the suspension operation difficulty is high, the heart is easy to be accidentally injured to cause bleeding, an ideal exposure effect is often difficult to be achieved by one suspension wire, and a plurality of suspension wires are needed, so that the complexity and time of surgical operation are increased, and the surgical risk is increased. Furthermore, the threading of suspension wires out of the chest wall also increases surgical incision and trauma. For example, CN202221129542.5 discloses a traction suspension device for a coronary bypass non-invasive pericardium. In view of this, the present invention has been made. Disclosure of Invention The invention aims to provide a pericardium traction exposure device for minimally invasive cardiac surgery, which solves the technical problems that the existing pericardium suspension device in the prior art has defects in design, bleeding is easily caused by accidental injury of the heart, one suspension wire is difficult to obtain a good exposure effect, a plurality of suspension wires are required to cause complicated operation, the operation risk is increased, and the suspension wires need to be penetrated out of the chest wall to cause the increase of operation incisions and wounds. The preferred technical solutions of the technical solutions provided by the present invention can produce a plurality of technical effects described below. In order to achieve the above purpose, the present invention provides the following technical solutions: The invention provides a pericardium traction exposure device for cardiac surgery minimally invasive surgery, which comprises an expansion ring and traction components arranged on the expansion ring, wherein the expansion ring is of a deformable elastic ring structure, the number of the traction components is multiple groups, and the traction components are uniformly arranged on the outer periphery of the expansion ring along the circumferential direction of the expansion ring and are used for traction of pericardium tissues and exposure of hearts. Preferably, the traction assembly comprises traction antennae, the number of the traction antennae is two, and the traction antennae are symmetrically arranged about the radial extension line of the expansion ring. Preferably, the included angle between the two traction antennae is 40-50 degrees. Preferably, corners of the traction antennae are in smooth transition. Preferably, the diameter of the expansion ring is 4-8cm. Preferably, a traction adjusting wire is arranged on the outer periphery of the expansion ring and used for adjusting the position and the posture of the expansion ring. Preferably, the length of the traction wire is 15cm-25cm. Preferably, the device further comprises a transmission mechanism, wherein the transmission mechanism comprises a transmission barrel and a push rod, the transmission barrel is provided with a sliding cavity with two open ends, a storage position is arranged at the first end of the sliding cavity and used for storing the expansion ring in a compressed state, the push rod is inserted from the second end of the sliding cavity and is tightly matched with the sliding cavity, and external force drives the push rod to move along the sliding cavity so as to drive the expansion ring to be separated from the storage position. Preferably, the transmission mechanism further comprises a reset component, wherein the reset component is respectively connected with the transmission cylinder and the push rod, and is used for limiting the displacement range of the push rod and driving the push rod to return to the original position after the push rod completes the pushing action. Preferably, an anti-slip assembly is arranged on the outer wall surface of the transmission barrel. The preferred technical scheme of the invention can at least have the following technical effects: The invention effectively avoids the technical problems that the existing pericardium suspension device in the prior art has defects in design, bleeding is easily caused by accidentally injuring the heart,