CN-121987268-A - Annuloplasty ring shrinking apparatus

CN121987268ACN 121987268 ACN121987268 ACN 121987268ACN-121987268-A

Abstract

The application provides an annuloplasty ring shrinking instrument which comprises a multi-cavity tube, a mounting piece, an upper clamping arm, a lower clamping arm and a handle, wherein the mounting piece is arranged at the distal end of the multi-cavity tube, a first connecting part and a second connecting part are arranged on the mounting piece, the lower clamping arm is rotationally connected with the first connecting part, the upper clamping arm is rotationally connected with the second connecting part, the upper clamping arm is provided with a detection hole, the multi-cavity tube and the mounting piece are provided with a detection channel which is communicated with each other, a detection rod which can move relative to the detection channel is arranged in the detection channel, the detection hole can be aligned with the distal end port of the detection channel, the detection rod can extend into the detection hole, and a control piece which can control the detection rod to move relative to the detection channel is arranged in the handle. The annuloplasty ring shrinking instrument provided by the application can accurately clamp the annulus when the annulus is shrunk by arranging the detection hole and the detection rod, and solves the technical problem that the annulus cannot be accurately clamped when the annulus is shrunk in the prior art.

Inventors

ZHOU ZHAOLIN
XIE QIZONG
WANG SHICHONG
ZHU WENYOU

Assignees

瀚芯医疗科技(深圳)有限公司

Dates

Publication Date: 20260508
Application Date: 20241105

Claims (10)

1. An annuloplasty ring shrinking device, characterized by comprising the following steps: A multi-lumen tube; The mounting piece is arranged at the distal end of the multi-cavity tube, a first connecting part and a second connecting part are arranged on the mounting piece, the first connecting part is positioned at the proximal end of the mounting piece, and the second connecting part is positioned between the distal end of the mounting piece and the proximal end of the mounting piece; the lower clamping arm is rotationally connected to the first connecting part; The upper clamping arm is rotationally connected to the second connecting part, a detection hole is formed in the upper clamping arm, a detection channel which is communicated with the multi-cavity tube and the mounting piece is formed in the multi-cavity tube, a detection rod which can move relative to the detection channel is arranged in the detection channel, and the detection hole can be aligned with a distal end port of the detection channel, so that the detection rod can extend into the detection hole; the handle is internally provided with a control piece which can control the detection rod to move relative to the detection channel.
2. The annuloplasty ring retraction instrument according to claim 1 wherein the handle comprises a housing having an L-shaped slot for extending the control member, the control member having a fixation hole through which the detection rod passes, the detection rod being fixedly connected to the control member via the fixation hole.
3. The annuloplasty ring retraction device according to claim 2 wherein a retaining wall is provided on the housing, a through hole through which the probe rod passes is provided on the retaining wall, the probe rod can move relative to the retaining wall, the control member is located at a distal end of the retaining wall, a proximal end of the probe rod passes through the fixing hole and then passes through the through hole of the retaining wall to be limited in the handle, and an elastic member is sleeved on an outer periphery of the probe rod between the control member and the retaining wall.
4. The annuloplasty ring retraction instrument according to claim 3 wherein the control member comprises a detection button and a connector limited to the detection button, wherein the detection button is exposed to the handle through the L-shaped slot, a limiting channel for limiting the connector is arranged on the detection button, the fixing hole is formed in the connector, and the connector is fixedly connected with the detection rod.
5. The annuloplasty ring retraction instrument according to claim 4 wherein the detection button comprises a button cap and a sliding rod protruding from the button cap, wherein the sliding rod is movable within the L-shaped slot, one end of the sliding rod is connected to the button cap, the other end of the sliding rod is provided with a limiting plate, two baffles are protruding from the limiting plate, and the limiting channel for limiting the connector is formed between the two baffles.
6. The annuloplasty ring retraction instrument according to claim 5 wherein the housing comprises an upper housing and a lower housing, wherein the lower housing has an anti-rotation slot formed therein, and wherein the connector comprises an anti-rotation portion positioned in the anti-rotation slot and a limiting portion perpendicular to the anti-rotation portion, the limiting portion being positioned in the limiting channel.
7. The annuloplasty ring retraction instrument according to claim 6 wherein said connector further comprises a hollow post projecting distally, said post being coaxially disposed with and in communication with said securing aperture, said post and said securing aperture being adapted for passage of said probe therethrough for fixedly connecting said probe to said connector.
8. The annuloplasty ring retraction instrument according to claim 1 wherein the upper clamping arms are provided in two and comprise a first upper clamping arm and a second upper clamping arm, each upper clamping arm is provided with a detection hole, the multi-lumen tube and the mounting member are provided with two detection channels, each detection channel is internally provided with a detection rod capable of moving relative to the detection channel, and the handle is provided with two control members for controlling the two detection rods respectively.
9. The annuloplasty ring retraction device according to claim 8 wherein the lower clamping arm is provided with two puncture needle channels, the annuloplasty ring retraction device further comprises two puncture needles respectively arranged in the two puncture needle channels, the first upper clamping arm is provided with a first taper hole for one puncture needle to pass through, the second upper clamping arm is provided with a second taper hole for the other puncture needle to pass through, each puncture needle is provided with an anchor piece in the distal end, each anchor piece is internally fixed with a suture, one free end of each suture is fixed in one anchor piece, and the other free end of each suture is fixed in the other anchor piece.
10. The annuloplasty ring retraction instrument according to claim 9 wherein a slot is provided in the lower clip arm for placement of a spacer, two free ends of the suture are respectively secured to two of the anchors through the spacer, the U-shaped end of the suture is located on one side of the spacer, and two free ends of the suture are located on the other side of the spacer.

Description

Annuloplasty ring shrinking apparatus Technical Field The invention belongs to the technical field of medical appliances, and particularly relates to an annuloplasty ring contraction appliance. Background This section provides merely background information related to the present disclosure and is not necessarily prior art. The mitral valve is a part of the heart, located between the left atrium and the left ventricle, from which blood is pumped into the left ventricle, and closes to prevent blood from being pumped back into the left atrium when the left ventricle contracts to pump blood into the whole body. The anterior leaflet and the posterior leaflet of the mitral valve are both connected with chordae tendineae, and when the left ventricle contracts, the chordae tendineae limit the anterior leaflet and the posterior leaflet to move upwards beyond the junction sealing point of the anterior leaflet and the posterior leaflet, so that the mitral valve is completely closed. The chordae tendineae are connected at one end to the leaflets and at the other end to the papillary muscles of the heart. In some patients, whether due to genetic deformity, disease or injury, the mitral valve fails to close properly, resulting in a condition called regurgitation, i.e., blood is pumped into the atria each time the myocardium contracts. Some mitral regurgitation is due to mitral valve anterior-posterior She Wenge failure caused by valve annulus dilation, left ventricle enlargement. The reduction in the size of the mitral valve annulus can be achieved by locking the position of the annulus portion for annular dilation by reducing the patient's annulus size to mitigate mitral regurgitation. The manner of locking the annulus may be achieved by carrying the suture through multiple locations of the annulus with a piercing needle and then tensioning the suture to reduce the size of the annulus. But when puncturing the annulus, it tends to clip to the myocardium next to the annulus, resulting in failure to puncture the annulus and failure to lock the annulus. Disclosure of Invention The invention provides a first suturing apparatus and a suturing system, which at least solve the technical problem that an annulus cannot be accurately clamped when the annulus is contracted in the prior art. In a first aspect, an annuloplasty ring retraction instrument is provided, which comprises a multi-cavity tube, a mounting piece, a lower clamping arm, an upper clamping arm and a handle, wherein the mounting piece is arranged at the distal end of the multi-cavity tube, a first connecting part and a second connecting part are arranged on the mounting piece, the first connecting part is positioned at the proximal end of the mounting piece, the second connecting part is positioned between the distal end of the mounting piece and the proximal end of the mounting piece, the lower clamping arm is rotationally connected with the first connecting part, the upper clamping arm is rotationally connected with the second connecting part, the upper clamping arm is provided with a detection hole, the multi-cavity tube and the mounting piece are provided with a detection channel which is communicated with each other, a detection rod which can move relative to the detection channel is arranged in the detection channel, the detection hole can be aligned with the distal end port of the detection channel, so that the detection rod can extend into the detection hole, and a control piece which can control the detection channel to move relative to the detection channel is arranged in the handle. In one possible implementation manner, the handle includes a housing, an L-shaped groove for extending the control member is formed in the housing, a fixing hole for the detection rod to pass through is formed in the control member, and the detection rod is fixedly connected with the control member through the fixing hole. In one possible implementation manner, the casing is provided with a retaining wall, the retaining wall is provided with a through hole for the detection rod to pass through, the detection rod can move relative to the retaining wall, the control member is located at the far end of the retaining wall, the near end of the detection rod passes through the fixing hole and then passes through the through hole of the retaining wall to be limited in the handle, and an elastic member is sleeved on the periphery of the detection rod between the control member and the retaining wall. In one possible implementation mode, the control member comprises a detection button and a connecting piece limited on the detection button, the detection button can be exposed out of the handle through the L-shaped groove, a limiting channel for limiting the connecting piece is arranged on the detection button, the fixing hole is formed in the connecting piece, and the connecting piece is fixedly connected with the detection rod. In one possible implementation manner, the detection butt