CN-224206848-U - Clamping sealing connection device

CN224206848UCN 224206848 UCN224206848 UCN 224206848UCN-224206848-U

Abstract

The application discloses a clamping and sealing connecting device which comprises a torsion cap, a torsion control shaft and a sealing ring, wherein the torsion cap is of an elongated structure, an indication arrow is arranged on the outer surface of a head end and used for indicating a direction, a plurality of anti-slip protruding points are distributed on the surface of the torsion cap so as to increase friction force during rotation, internal threads are arranged in the torsion cap, the torsion control shaft is matched with the torsion cap for use, vertical anti-slip ribs are arranged on the torsion control shaft and used for increasing mechanical strength and providing additional anti-slip functions, external threads are arranged on the torsion control shaft, the sealing ring is accommodated in a torsion cap sealing groove and a torsion control shaft sealing groove, physiological saline liquid can be directly injected into a catheter under the condition of not disassembling a guide wire and a connecting seat, the inner wall of the catheter and the guide wire are synchronously washed, the stability of an infusion process is ensured, and the leakage of the liquid is prevented. The risk caused by instrument movement or liquid leakage in the operation is reduced, the method is suitable for various medical scenes, and the safety and the efficiency of the operation are obviously improved.

Inventors

LIN QIHANG
Xu Sunxi
ZHU SEN

Assignees

苏州恒瑞宏远医疗科技有限公司

Dates

Publication Date: 20260508
Application Date: 20250109

Claims (9)

1. A clamping and sealing connecting device, characterized by comprising the following steps: The twisting cap is of an elongated structure, an indication arrow is arranged on the outer surface of the head end and used for indicating the direction, a plurality of anti-slip protruding points are distributed on the surface of the head end so as to increase friction force during rotation, and internal threads are arranged inside the twisting cap; The torsion control shaft is matched with the torsion cap for use, vertical anti-slip ribs are arranged on the torsion control shaft and used for increasing mechanical strength and providing additional anti-slip functions, and external threads are arranged on the torsion control shaft; And the sealing ring is accommodated in the torsion cap sealing groove and the torsion control shaft sealing groove, and can directly inject physiological saline liquid into the catheter under the condition of not disassembling the guide wire and the connecting seat, so that the inner wall of the catheter and the guide wire are synchronously flushed, the stability of the infusion process is ensured, and the liquid leakage is prevented.
2. The clamp seal coupling apparatus of claim 1, further comprising: The interior of the torsion cap is provided with a torsion cap through hole, the interior of the torsion control shaft is provided with a torsion control shaft through hole, and the torsion cap through hole and the torsion control shaft through hole are mutually communicated and used for clamping a catheter, a sheath tube and a guide wire passage type instrument.
3. The clamp seal coupling of claim 2 wherein said twist-cap front end is provided with an outer conical nipple and locking threads, said outer conical nipple being coupled to a catheter hub, said access-type instrument being accessible to said twist-control shaft throughbore to establish access for fluid.
4. The clamp seal coupling of claim 1 wherein said torsion control shaft is provided with an internal taper at an end thereof facing away from said torsion cap for connection to a connector of a syringe infusion instrument for facilitating direct infusion of fluid during a surgical procedure.
5. The clamping and sealing connection device according to claim 1, wherein an inclined plane is further arranged in the torsion cap, a clamping jaw is arranged at the front end of the torsion control shaft, the internal thread is meshed with the external thread when the torsion cap and the torsion control shaft perform relative axial movement, the clamping jaw moves along the inclined plane and extrudes towards a central axis, clamping and fixing of medical equipment is achieved, and the sealing ring is extruded to form a seal in the screwing process, so that liquid leakage is prevented.
6. The clamp seal connecting device of claim 5, wherein the bevel transition is provided with a twist cap snap, the outer surface of the twist control shaft is provided with a twist control shaft snap, the twist cap snap is matched with the twist control shaft snap to provide additional fixation to ensure that the connection is not accidentally loosened.
7. The clamp seal coupling of claim 5 wherein said jaws are resilient to maintain their clamped condition after clamping of a medical instrument.
8. The clamp seal coupling of claim 1 wherein the threaded connection of the twist-cap and the twist-control shaft allows for adjustment of the degree of clamping of the instrument as desired during a surgical procedure.
9. The clamp seal coupling of claim 1 wherein said torque control shaft is cylindrical.

Description

Clamping sealing connection device Technical Field The application relates to the technical field of medical treatment, in particular to a clamping and sealing connecting device. Background Interventional therapy is a method for locally treating a focus under the guidance of image equipment through a blood vessel, a small channel on skin or an original pipeline of a human body under the condition that the focus is exposed without opening. The treatment method has the advantages of small wound, simplicity, safety, effectiveness, less complications and short hospitalization time. Especially in liver cancer treatment, TACE is a common interventional technique, where drugs and embolic agents are injected into a tumor site through a catheter to better perform the drug action, and before the catheter guidewire is operated, a series of pretreatment is often required for the catheter guidewire, where the interior of the catheter and the guidewire need to be flushed with physiological saline containing heparin for purging air from the catheter, and at the same time, it needs to be ensured that the coating on the surface of the guidewire remains wet, so that the guidewire can pass through the catheter more smoothly. In actual operation, the guide wire is required to be withdrawn from the catheter, the catheter and the guide wire are respectively washed, the guide wire is re-placed in the catheter, the operation is continued, the process is complicated, and the operation time is increased. The guide wire is very smooth and small in size due to the hydrophilic coating coated on the surface, so that the guide wire is unfavorable for a doctor to move and rotate, and when the catheter and the guide wire are not interlocked, relative movement is easy to occur, so that the operation is inconvenient and even misoperation is caused. To overcome these challenges, there is a need to develop a new technical solution that can directly flush the catheter and guidewire without removing the guidewire, to simplify the surgical procedure, reduce the surgical time, and alleviate the pain of the patient, while ensuring the tightness between the catheter and guidewire, avoiding leakage, so that the clamped guidewire does not accidentally move relative to the catheter. The present application therefore proposes a clamp-on sealed connection device that solves these problems, improving the controllability and accuracy of the operation. Disclosure of utility model The application mainly provides the clamping sealing connecting device which can directly flush the catheter and the guide wire without removing the guide wire, can clamp the guide wire and other instruments, so that the clamped instruments cannot move, simultaneously can conveniently control the guide wire to advance, withdraw and rotate, has good sealing performance when the liquid is infused into the catheter, and avoids liquid leakage. In order to solve the technical problems, the application adopts the following technical scheme: there is provided a clamp seal connection comprising: The twisting cap is of an elongated structure, an indication arrow is arranged on the outer surface of the head end and used for indicating the direction, a plurality of anti-slip protruding points are distributed on the surface of the head end so as to increase friction force during rotation, and internal threads are arranged inside the twisting cap; The torsion control shaft is matched with the torsion cap, vertical anti-slip ribs are arranged on the torsion control shaft and used for increasing mechanical strength and providing additional anti-slip functions, and external threads are arranged on the torsion control shaft; And the sealing ring is accommodated in the torsion cap sealing groove and the torsion control shaft sealing groove, so that liquid such as normal saline is directly injected into the catheter under the condition that the guide wire and the connecting seat are not dismounted, the inner wall of the catheter and the guide wire are synchronously flushed, the stability of the infusion process is ensured, and the liquid leakage is prevented. In some embodiments, a torsion cap through hole is arranged in the torsion cap, a torsion control shaft through hole is arranged in the torsion control shaft, and the torsion cap through hole and the torsion control shaft through hole are mutually communicated and are used for clamping passage instruments such as a catheter, a sheath tube and the like. In some embodiments, the front end of the torsion cap is provided with an outer conical joint and locking threads, the outer conical joint is connected with the catheter seat, and a passage type instrument can enter the torsion control shaft through hole to establish a liquid passage. In some embodiments, the end of the torque control shaft facing away from the torque cap is provided with an internal conical structure for connection to a connector of an infusion device such as a syringe for facili