Search

CN-224206837-U - Retraction device and intravascular ultrasound system

CN224206837UCN 224206837 UCN224206837 UCN 224206837UCN-224206837-U

Abstract

The utility model discloses a retracting device and an intravascular ultrasound system, which comprises a base component, a sliding component and a driving component, wherein the base component comprises a conducting plate and a first conducting wire, the first conducting wire is connected to the conducting plate, a sliding groove is formed in the conducting plate, the sliding component is provided with a signal input end and a signal output end, the signal input end is used for fixing an ultrasound catheter and can receive information collected by the retracting ultrasound catheter, the signal output end can be in sliding fit with and electrically connected with the sliding groove, and the driving component is used for driving the sliding component to slide along the sliding groove so that the information collected by the retracting ultrasound catheter can be sequentially transmitted from the signal input end, the signal output end and the conducting plate to a signal processing unit of the intravascular ultrasound system through the first conducting wire. According to the technical scheme, the first lead of the output signal is arranged on the base assembly, external additional gravity and external additional resistance of the sliding assembly caused by the lead of the output signal are eliminated, and the stability and the signal transmission stability of the sliding assembly in the retracting device are improved, so that the imaging quality stability is improved.

Inventors

  • HUANG LIXIN
  • GU XIANYI

Assignees

  • 深圳皓影医疗科技有限公司

Dates

Publication Date
20260508
Application Date
20250210

Claims (10)

  1. 1. A retraction device for use with an intravascular ultrasound system, comprising: the base assembly (10) comprises a conducting strip (11) and a first conducting wire (12), wherein the first conducting wire (12) is connected to the conducting strip (11), and a chute (13) is formed in the conducting strip (11); The sliding assembly (20) is provided with a signal input end and a signal output end, wherein the signal input end is used for fixing an ultrasonic catheter and can receive information acquired by retracting the ultrasonic catheter; The driving assembly (30) is used for driving the sliding assembly (20) to slide along the sliding groove (13), so that information collected by the ultrasonic catheter is retracted and sequentially transmitted from the signal input end, the signal output end and the conducting strip (11) to the signal processing unit of the intravascular ultrasound system through the first conducting wire (12).
  2. 2. The withdrawal device according to claim 1, characterized in that the sliding assembly (20) comprises a box assembly (21) and a slider assembly (22); the slide block assembly (22) is provided with a slide block input end and a slide block output end, and the slide block output end is the signal output end; The box body assembly (21) comprises a box body (211), wherein the box body (211) is provided with an ultrasonic catheter connector (212), the ultrasonic catheter connector (212) is the signal input end, the ultrasonic catheter connector (212) is used for fixing the ultrasonic catheter and can receive information collected by retracting the ultrasonic catheter, and the box body (211) is also provided with a box body output end (213) for transmitting the information collected by the ultrasonic catheter to the slide block input end; The driving assembly (30) is used for driving the box body (211) to drive the sliding block output end of the sliding block assembly (22) to slide in the sliding groove (13).
  3. 3. The withdrawal device according to claim 2, characterized in that the slider assembly (22) comprises a slider base (221), a bracket (222) and a transport module; The transmission module comprises conductive beads (223), conductive springs (224) and conductive contact pieces (225); The sliding block base (221) is connected with the box body (211) through the bracket (222), and the sliding block base (221) is provided with a through hole (226) along the axial direction of the sliding block base; One end of the conductive spring (224) is abutted against the first end of the conductive contact piece (225), the other end of the conductive spring is abutted against the conductive bead (223), and the conductive bead (223) can slide with the sliding groove (13) and is electrically connected; wherein the slider base (221) is an insulating base.
  4. 4. A withdrawal device according to claim 3, characterized in that the transmission module further comprises a pre-tightening bolt (227); the first end of the conductive contact (225) divides the through hole (226) into an upper through part and a lower through part; The pre-tightening bolt (227) is assembled in the upper through part, the pre-tightening bolt (227) is abutted against the upper end face of the first end of the conductive contact piece (225), and the lower through part is assembled with the conductive bead (223) and the conductive spring (224).
  5. 5. The withdrawal device according to claim 3, characterized in that the transmission module further comprises a second wire (228); The second end of the conductive contact (225) is connected to the box output end (213) through the second wire (228).
  6. 6. The retracting device according to any one of claims 3 to 5, wherein the number of said transmission modules is a plurality of groups, said plurality of groups being arranged circumferentially around said slider base (221); The conductive sheets (11) and the first wires (12) form base conductive modules, and the number of the base conductive modules corresponds to the number of the transmission modules in a one-to-one mode; The conductive beads (223) of each group of the transmission modules are in sliding fit with the corresponding sliding grooves (13) of the conductive sheets (11) and are electrically connected, and the conductive contact sheets (225) of each group of the transmission modules are connected to the output end (213) of the box body; wherein the first wires (12) of each set of the base conductive modules are connected to a signal processing unit of the intravascular ultrasound system.
  7. 7. The withdrawal device according to claim 1, wherein the base assembly (10) further comprises a fixing plate (14) and a insulating spacer (15); The chute (13) is arranged on the upper surface of the conducting strip (11), and the lower surface of the conducting strip (11) is fixed on the fixing plate (14) through the insulating cushion block (15).
  8. 8. The retracting device according to claim 7, wherein the driving assembly (30) comprises a motor (31), a rack (32) and a gear (33); the motor (31) is fixed at the bottom of the sliding assembly (20), the rack (32) is arranged on the fixed plate (14), and the length direction of the sliding groove (13) is parallel to the rack (32); The output end of the motor (31) is provided with the gear (33) meshed with the rack (32).
  9. 9. The withdrawal device according to claim 8, wherein the drive assembly (30) further comprises a mounting seat (34); the motor (31) is fixed at the bottom of the sliding assembly (20) through a mounting seat (34).
  10. 10. An intravascular ultrasound system comprising a retraction device as claimed in any one of claims 1 to 9.

Description

Retraction device and intravascular ultrasound system Technical Field The utility model relates to the technical field of intravascular ultrasound, in particular to a retraction device and an intravascular ultrasound system. Background Intravascular ultrasound (IVUS) refers to medical imaging techniques using special catheters with ultrasound probes attached at their ends, in combination with non-invasive ultrasound techniques and invasive catheter techniques. Intravascular ultrasound is a method of placing a miniaturized ultrasonic transducer into a cardiovascular cavity through a cardiac catheter to display the shape of a cardiovascular section and/or the blood flow pattern, and mainly comprises two aspects of ultrasonic imaging technology and Doppler blood flow measurement. On the basis of angiography, a blood vessel and a lesion site to be inspected are selected, for example, a coronary artery is taken as an example, a guide catheter is placed at the coronary artery opening, a guide wire is sent to the far end of a target blood vessel, an intravascular ultrasound catheter is sent to the far end of the lesion site to be inspected along the guide wire, the inspection is generally carried out by adopting a method of continuously retracting from the far end to the near end of the target blood vessel at a certain speed, and then the important inspection is carried out on the site of interest. In the traditional retraction device, a wire of a retraction main body of the retraction device is used for transmitting signals, but the weight and arrangement of the wire are unreasonable, so that the risk of blocking or dropping of the retraction device due to gravity center change exists in a signal acquisition process, and the imaging quality of a terminal of the intravascular ultrasound system is affected. Disclosure of utility model In view of this, the present utility model provides a retraction device, in which a first wire outputting a signal is disposed on a base assembly, so as to avoid the wire from affecting the motion stability of a sliding assembly (i.e., a retraction main body), and improve the accuracy of signal collection, thereby improving the imaging quality of an intravascular ultrasound system terminal. The utility model also provides an intravascular ultrasound system comprising the retraction device. In order to achieve the above purpose, the present utility model provides the following technical solutions: a retraction device for use in an intravascular ultrasound system comprising: The base assembly comprises a conducting strip and a first wire, wherein the first wire is connected to the conducting strip, and the conducting strip is provided with a chute; The sliding assembly is provided with a signal input end and a signal output end, wherein the signal input end is used for fixing an ultrasonic catheter and can receive information acquired by retracting the ultrasonic catheter; The driving assembly is used for driving the sliding assembly to slide along the sliding groove, so that information acquired by the ultrasonic catheter is retracted and sequentially transmitted to the signal processing unit of the intravascular ultrasound system from the signal input end, the signal output end and the conducting strip through the first lead. Preferably, the sliding assembly comprises a box body assembly and a sliding block assembly; the sliding block assembly is provided with a sliding block input end and a sliding block output end, and the sliding block output end is the signal output end; The box body assembly comprises a box body, a box body and a box body output end, wherein the box body is provided with an ultrasonic catheter connector, the ultrasonic catheter connector is the signal input end and is used for fixing the ultrasonic catheter and can receive information acquired by retracting the ultrasonic catheter; The driving assembly is used for driving the box body main body to drive the sliding block output end of the sliding block assembly to slide in the sliding groove. Preferably, the sliding block assembly comprises a sliding block base, a bracket and a transmission module; the transmission module comprises conductive beads, conductive springs and conductive contact pieces; The first end of the conductive contact piece is arranged in the through hole, and the second end of the conductive contact piece passes through the peripheral wall of the slider base to be connected with the output end of the box body; One end of the conductive spring is abutted against the first end of the conductive contact piece, the other end of the conductive spring is abutted against the conductive bead, and the conductive bead can slide with the sliding groove and is electrically connected with the sliding groove; wherein, the slider base is insulating base. Preferably, the transmission module further comprises a pre-tightening bolt; the first end of the conductive contact piece divides the through hole into an