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CN-117258113-B - Tearable catheter sheath with hemostatic function

CN117258113BCN 117258113 BCN117258113 BCN 117258113BCN-117258113-B

Abstract

The invention discloses a tearable catheter sheath with a hemostatic function, which relates to the technical field of medical equipment and solves the problem that financial staff is inconvenient to bind vouchers, and comprises the following steps of: the tube sheath component comprises two mutually symmetrical tearable tube seats, wherein the inner edge surfaces of the openings at the bottoms of the two tearable tube seats are jointly provided with tearable sheath tubes, the tearable sheath tubes are provided with tearing lines along the axial directions of the two tearable tube seats, the tube sheath tubes can be synchronously torn when the two tearable tube seats are torn outwards, the tube sheath component further comprises a limiting component arranged between the tearable tube seats and the tearable sheath tubes, the limiting component comprises a limiting ring arranged on the outer edge surface of the tearable sheath tubes, the limiting ring is used for enabling the opening position of the tearable sheath tubes when the tearable sheath tubes are peeled to be above a puncture incision, and the problem that the puncture incision is pulled to two sides to cause incision expansion when the tearable sheath tubes are peeled to two sides and withdrawn from a blood vessel is prevented.

Inventors

  • ZHAO WEITAO
  • ZHAO SHEN
  • KONG YANGYANG
  • GUO LIBIN

Assignees

  • 南京友德邦医疗科技有限公司

Dates

Publication Date
20260505
Application Date
20231031

Claims (5)

  1. 1. A tearable catheter sheath with hemostatic function, comprising; The tube sheath assembly (1) comprises two mutually symmetrical tearable tube seats (103), wherein the tearable sheath tubes (101) are commonly arranged on the inner edge surfaces of the openings at the bottoms of the two tearable tube seats (103), and tear lines are arranged on the tearable sheath tubes (101) along the mutually symmetrical axial directions of the two tearable tube seats (103) and used for enabling the tearable sheath tubes (101) to be synchronously torn when the two tearable tube seats (103) are torn outwards; The limiting assembly (2) comprises a limiting ring (202) arranged on the outer edge surface of the tearable sheath tube (101), wherein the limiting ring (202) is used for enabling an opening position of the tearable sheath tube (101) to be positioned above a puncture incision to prevent the puncture incision from expanding outwards, one end of a traction part is arranged on the limiting ring (202) through a winding part, the traction part is used for carrying out traction on the limiting ring (202) to prevent the puncture incision from being pressed when the tearable tube seat (103) is peeled off, the other end of the traction part is connected with the tearable tube seat (103), and the winding part can enable the traction part to extend along with the tearing of the tearable tube seat (103); The winding part comprises two mounting notches (204) which are arranged on the limiting ring (202) and correspond to the two tearable tube seats (103), winding wheels (205) are connected in the two mounting notches (204), and the pulling part is arranged on the two winding wheels (205); The pulling part comprises a connecting piece (201) and a synchronous belt (203), one end of the synchronous belt (203) is wound on the outer edge surface of the winding wheel (205), and the other end of the synchronous belt (203) is arranged on the surface of the tearable tube seat (103) through the connecting piece (201), so that when the tearable tube seat (103) is peeled off, the synchronous belt (203) pulls the limiting ring (202) to prevent the puncture incision from being pressed; Cavities are formed in the two tearable tube seats (103) and the tearable sheath tube (101) through an in-mold injection molding process, and are used for plugging the expansion tube after the positioning of the catheter sheath is finished; The utility model discloses a locating device, including spacing ring (202), locating component (3), but locating component (3) are used for carrying out the location to the expansion pipe when tearing sheath pipe (101) are peeled off through tearing tube socket (103), locating component (3) are including two installation stand (302), and rotate respectively on the outer fringe face that two installation stand (302) kept away from each other and be provided with pivot (301), and all offer the notch on two pivots (301), two the equal fixed mounting of outer fringe face of installation stand (302) has stopper (303), and two stopper (303) offset with the notch surface on two pivots (301) respectively, all are fixed on two pivots (301) and are provided with installation swivel plate (304), and stopper (303) are used for controlling the rotation angle of installation swivel plate (304) on pivot (301).
  2. 2. The tearable catheter sheath with hemostatic function according to claim 1, wherein the two mounting rotating plates (304) are rotatably mounted with rotating rods (3101), and the two rotating rods (3101) are provided with magnetic attraction positioning pieces (3102), and after the two magnetic attraction positioning pieces (3102) are attracted, a cavity is formed inside for positioning the expansion tube.
  3. 3. The tearable catheter sheath with the hemostatic function according to claim 2, wherein two end caps (108) are arranged in a cavity formed in the two tearable tube seats (103), a sealing plug (107) which is cut in half is arranged between the two end caps (108), the sealing plug (107) is used for realizing sealing, controlling the air pressure in the cavity and inhibiting the outflow of blood, a buckling cap (104) is arranged on the outer edge surface of the end cap (108) through a buckle (105), foam (106) is embedded in the center of the buckling cap (104), medical grade silicone oil is coated on the foam (106), and the lubricating performance of the expansion tube during insertion is ensured.
  4. 4. The tearable catheter sheath with hemostatic function according to claim 3, wherein one of the tearable tube seats (103) is integrally formed with an extension tube connection port (102), and the extension tube connection port (102) is used for sucking out air in the tearable catheter sheath (101) so as to facilitate the medical staff to perform interventional therapy.
  5. 5. The tearable catheter sheath with hemostatic function according to claim 3, wherein the tearable sheath tube (101) and the limiting ring (202) are made of injection molded high-density polyethylene, so that the tearable performance of the tearable catheter sheath tube is improved, and tear lines with the thickness of 0.15mm are arranged on the tearable sheath tube (101) and the limiting ring (202), so that the tearable catheter sheath tube is convenient to peel, and thirty percent of barium sulfate is added into the tearable sheath tube (101), so that the profile of the tearable sheath tube (101) can be seen under X rays in the clinical use process.

Description

Tearable catheter sheath with hemostatic function Technical Field The invention relates to the technical field of medical equipment, in particular to a tearable catheter sheath with a hemostatic function. Background During cardiac pacing, the electrode lead of the pacing pulse generator is fed from the sheath to the heart, and after positioning, the sheath is withdrawn, leaving the electrode lead in the body. Since the proximal end of the electrode lead is attached to the pacing pulse generator, the sheath cannot leave the lead, and thus the sheath for such procedures must be tearable. When the sheath tube is withdrawn, the sheath tube is symmetrically torn into two pieces, and the two pieces are torn while withdrawing until the sheath tube is completely torn to withdraw from the blood vessel and leave the lead. At present, after interventional therapy is performed on a patient and a catheter sheath is fixed, an expansion tube is required to be inserted into a body through a cavity on the catheter sheath to provide conditions for subsequent interventional therapy, and after the insertion of the expansion tube is completed, the catheter sheath is required to be peeled off, the catheter sheath is peeled off to two sides through a structure convenient to tear off, and the catheter sheath is separated from the expansion tube, but when the catheter sheath is torn off to two sides, the opening position of the tearing off is expanded to two sides, the two sides of a puncture incision are expanded, the incision is expanded, bleeding is possibly caused, and potential safety hazards are caused. Disclosure of Invention The present invention is directed to a solution to the above-mentioned problems. In order to achieve the aim, the invention provides the technical scheme that the tearable catheter sheath with the hemostatic function comprises; The tube sheath assembly comprises two mutually symmetrical tearable tube seats, a tearable sheath tube is arranged on the inner edge surface of the opening at the bottom of each tearable tube seat, and a tear line is arranged on the tearable sheath tube along the mutually symmetrical axial direction of each tearable tube seat and used for enabling the tearable sheath tube to be synchronously torn when the two tearable tube seats are torn outwards, and the tube sheath assembly further comprises a limiting assembly arranged between each tearable tube seat and each tearable sheath tube; The limiting assembly comprises a limiting ring arranged on the outer edge surface of the tearable sheath tube, wherein the limiting ring is used for enabling the opening position of the tearable sheath tube when the tearable sheath tube is peeled to be located above a puncture incision to prevent the puncture incision from expanding outwards, one end of a traction part is arranged on the limiting ring through a winding part, the traction part is used for carrying out traction on the limiting ring to prevent the puncture incision from being pressed when the tearable tube seat is peeled, the other end of the traction part is connected with the tearable tube seat, and the winding part can enable the traction part to extend along with the tearing of the tearable tube seat. Preferably, the winding part comprises two mounting notches which are arranged on the limiting ring and correspond to the two tearable tube seats, winding wheels are connected in the two mounting notches, and the pulling part is arranged on the two winding wheels; The traction part comprises a connecting piece and a synchronous belt, one end of the synchronous belt is wound on the outer edge surface of the winding wheel, the other end of the synchronous belt is arranged on the surface of the tearable tube seat through the connecting piece, when the tearable tube seat is peeled off, the synchronous belt pulls the limiting ring to prevent the puncture notch from being pressed, when the two tearable tube seats are torn outwards, the two tearable tube seats pull the limiting ring through the connecting piece through the synchronous belt and the winding wheel, when the tearable sheath tube is torn off, the peeled opening downwards presses the limiting ring to be in contact with the puncture interface, the notch pressing is reduced, bleeding is prevented, and when the two tearable tube seats are torn gradually, the synchronous belt pulls the winding wheel to rotate, the wound synchronous belt is released, so that the synchronous belt is stretched, and only the limiting ring is lifted upwards, but the limiting ring is not pulled to the two sides to tear the limiting ring. Preferably, the two tearable tube seats and the tearable sheath tube are internally provided with cavities through an in-mold injection molding process, the cavities are used for plugging the expansion tubes after the catheter sheath is positioned, and the expansion tubes can be inserted into the cavities after the tearable tube seats and the tearable sheath tube are inser