Lower limb artery puncture sheath with side holes
By introducing side holes and sheath core structures into the puncture sheath, using the combination of metal markings and connecting rope adhesive patches, the problem of insolid adjustment of guide wire position and fixation is solved, and the rapid and accurate position correction of the lower limb arterial puncture sheath is achieved and Stability improves surgical efficiency and patient safety.
Patent Information
- Application Number
- CN202420553975.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-21
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-03-21
AI Technical Summary
The existing puncture sheath cannot quickly and accurately adjust the position of the guidewire, resulting in the guidewire often entering the deep femoral artery, increasing the surgical time and bleeding volume, and being unfixed, affecting the surgical efficiency and patient safety.
A lower limb artery puncture sheath with lateral holes is designed, and the position of the lateral hole is positioned through metal markings. The guidewire can enter the superficial femoral artery through the lateral hole of the sheath tube from the deep femoral artery. The sheath core increases the hardness of the sheath tube to achieve synchronous rotation, connecting Rope and adhesive patch fixtures ensure stability and non-traumaticity.
It reduces the difficulty of puncture in inferior artery intervention surgery, avoids multiple punctures, improves the correction efficiency of the guide wire position and the fixing firmness of the device, and reduces the risk of damage to blood vessels.
Smart Images
Figure CN222285579U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical instruments, in particular to a lower limb artery puncture sheath with a side hole. Background Art
[0002] The puncture sheath is a commonly used minimally invasive surgical instrument used for puncture and operation during surgery. The puncture sheath establishes a basic pathway from the skin to the blood vessel, allowing the catheter and guidewire to enter the blood vessel to reach the lesion site. During the operation, the cannula needle is usually inserted first, and then the guidewire is sent in through the cannula needle, and then the cannula needle is withdrawn, and finally the puncture sheath is inserted through the guidewire. In the lower artery interventional surgery, the success or failure of arterial puncture and the fixation of the instrument are crucial. During the cannula needle puncture process, the cannula needle with the guidewire needs to be inserted from the common femoral artery into the superficial femoral artery. Due to the difficulty of puncture and the angle problem, the cannula needle often punctures the deep femoral artery, causing the guidewire to often enter the deep femoral artery by mistake. It may take a long time to adjust before the vascular sheath can be sent into the superficial femoral artery. If the cannula needle is pulled back and a second or multiple punctures are performed, it is easy to cause damage to the blood vessel.
[0003] The existing puncture sheath cannot correctly and quickly adjust the position of the guide wire. When the guide wire follows the cannula needle and mistakenly enters the deep femoral artery, the guide wire position cannot be efficiently corrected to the superficial femoral artery, which greatly increases the operation time and the patient's bleeding volume. At the same time, the loosely fixed puncture sheath brings many inconveniences to the insertion, removal and replacement of surgical instruments in subsequent operations, affects the efficiency of the operation, and is likely to cause secondary injuries to the patient. Utility Model Content
[0004] The utility model aims to provide a lower limb artery puncture sheath with a side hole to solve the problems that the existing puncture sheath cannot adjust the position of the guide wire and the puncture sheath is not firmly fixed.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] The basic technical scheme provided by the utility model is: a lower limb artery puncture sheath with a side hole, comprising a guide wire, a cannula needle and a sheath tube seat, the sheath tube seat is fixedly connected with an extension tube interface, a sheath tube and a fixed rubber sheet, the sheath tube is movably connected with a sheath core, the sheath tube is provided with a side hole for the guide wire to pass through, a metal mark that is not transparent to X-rays is provided at the side hole, the fixed rubber sheet is provided with a fixing hole, and the fixing hole is connected to the adhesive sheet through a connecting rope.
[0007] The principle of the basic technical solution is as follows: the side hole is located by a metal marker; the guide wire follows the cannula needle from the common femoral artery into the superficial femoral artery. If the guide wire follows the cannula needle into the deep femoral artery by mistake, the guide wire passes through the side hole of the sheath tube and enters the superficial femoral artery from the deep femoral artery; the sheath core is placed into the sheath tube to increase the hardness of the sheath tube and achieve synchronous rotation of the entire sheath tube; the connecting rope is wrapped around the device to keep the device stable and prevent it from moving; the adhesive plate fixes the free end of the connecting rope, thereby fixing the entire device.
[0008] The beneficial effects of the basic technical solution are: reducing the difficulty of puncture in inferior arterial interventional surgery. If the guide wire follows the cannula needle and successfully pierces the superficial femoral artery from the common femoral artery, the sheath is directly inserted. If the guide wire follows the cannula needle and pierces the deep femoral artery from the common femoral artery, the side hole is located by a metal marker, and the position of the guide wire is corrected through the side hole, without the need for secondary or multiple punctures. The setting of the sheath core facilitates the rotation of the sheath to ensure the overall synchronization of the sheath. The cooperation of the connecting rope and the adhesive sheet can fix the sheath non-traumatically, and the puncture instrument and surgical-related instruments can be wrapped around the connecting rope for fixation, which is more practical.
[0009] Preferably, the guide wire head is an elbow structure.
[0010] Through the above-mentioned arrangement, the design of the elbow structure makes it easier for the guide wire to pass through the side hole, thereby realizing the correction of the guide wire position. At the same time, during the movement of the guide wire, the tip of the guide wire will not touch the inner wall of the blood vessel, effectively preventing the tip of the guide wire from causing damage to the blood vessel.
[0011] Preferably, the length of the sheath is 10 cm, and the diameter of the sheath is 5 Fr, 6 Fr, 7 Fr or 8 Fr.
[0012] Through the above arrangement, it is ensured that there is a sheath of sufficient length both inside and outside the patient's body, which facilitates subsequent surgery.
[0013] Preferably, the distance between the side hole and the free end of the sheath is 4 cm.
[0014] Through the above-mentioned setting, it is convenient to correct the position of the guide wire to avoid the inability to effectively move to the superficial femoral artery due to distance problems.
[0015] Preferably, the diameter of the side hole is 2 mm.
[0016] Through the above arrangement, it is ensured that the guide wire can smoothly pass through the side hole and perform position correction.
[0017] Preferably, the fixed rubber sheet is provided with a grid-like anti-slip groove.
[0018] Through the above arrangement, the friction between the fixed rubber sheet and the patient's skin surface is increased, and the possibility of movement of the fixed rubber sheet and the sheath tube seat is reduced.
[0019] Preferably, two fixing holes are provided, and the two fixing holes are respectively located on two sides of the fixing rubber sheet.
[0020] Through the above arrangement, the two ends of the fixed rubber sheet are fixed by the cooperation of the fixing hole and the connecting rope, that is, the two ends of the sheath tube seat are fixed, thereby increasing the firmness of the device.
[0021] Preferably, there are several connecting ropes, and the connecting ropes are non-elastic ropes.
[0022] The above arrangement can effectively prevent the fixed rubber sheet from making a small displacement. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 This is a schematic diagram of the three-dimensional structure of a lower limb artery puncture sheath with a side hole according to the utility model;
[0024] Figure 2 for Figure 1 The enlarged structural diagram at A in the middle;
[0025] Figure 3 This is a schematic diagram of the working structure of a puncture needle of a lower limb artery puncture sheath with a side hole according to the utility model;
[0026] Figure 4 It is a schematic diagram of the working structure of the guidewire direction correction of the lower limb artery puncture sheath with side holes of the utility model;
[0027] Figure 5 This is a schematic diagram of the working structure of a sheath tube of a lower limb artery puncture sheath with a side hole according to the utility model;
[0028] The names of corresponding marks in the accompanying drawings are: guide wire 1, cannula needle 2, sheath seat 3, extension tube interface 4, sheath 5, fixed rubber sheet 6, sheath core 7, side hole 8, fixing hole 9, connecting rope 10, adhesive sheet 11, metal mark 12, anti-slip groove 14, common femoral artery 111, superficial femoral artery 112, deep femoral artery 113. DETAILED DESCRIPTION
[0029] The present invention is further described in detail below in conjunction with the accompanying drawings and implementation examples:
[0030] like Figure 1-Figure 5As shown: a lower limb artery puncture sheath with a side hole, comprising a guide wire 1, a cannula needle 2 and a sheath seat 3, the guide wire 1 head is an elbow structure, the sheath seat 3 is fixedly connected with an extension tube interface 4, a sheath 5 and a fixed rubber sheet 6, the sheath 5 is 10 cm long, the sheath diameter is 5Fr, 6Fr, 7Fr or 8Fr, and a side hole 8 is provided 4 cm away from the free end of the sheath 5, the side hole 8 has a diameter of 2 mm, and a metal marker 12 that is not transparent to X-rays is provided at the side hole 8, the sheath 5 is movably connected with a sheath core 7, the fixed rubber sheet 6 is provided with a grid-like anti-skid groove 14 and two fixing holes 9, the two fixing holes 9 are respectively located on both sides of the fixed rubber sheet 6, the fixing holes 9 are connected with a plurality of connecting ropes 10, the connecting ropes 10 are non-elastic ropes, and the connecting ropes 10 are connected with adhesive sheets 11.
[0031] The specific implementation process is as follows: place the guide wire 1 in the cannula needle 2, and the guide wire 1 follows the cannula needle 2 to penetrate from the common femoral artery 111 into the superficial femoral artery 112, then ensure that the guide wire 1 does not move, remove the cannula needle 2, and place the other end of the guide wire 1 in the sheath 5, the sheath 5 is along the guide wire 1, and the bottom of the sheath 5 is placed in the superficial femoral artery 112, and finally, the part of the sheath 5 and the sheath seat 3 that have not penetrated into the patient's body are fixed by the cooperation of the connecting rope 10 and the adhesive sheet 11. During the process of the connecting rope 10 and the adhesive sheet 11 being fixed, the connecting rope 10 can be selectively used to rotate and wrap the device around the patient, and then fixed by the adhesive plate 11.
[0032] In the process of the guide wire 1 following the cannula 2 from the common femoral artery 111 into the superficial femoral artery 112, if the guide wire 1 fails to smoothly enter the superficial femoral artery 112, when the guide wire 1 follows the cannula 2 from the common femoral artery 111 into the deep femoral artery 113, first ensure that the guide wire 1 does not move, remove the cannula 2, and then insert the sheath 5 into the deep femoral artery 113 along the guide wire 1, then pull the guide wire 1, determine the position of the side hole 8 by the metal marker 12, and then let the guide wire 1 pass through the side hole 8. The guide wire 1 is passed out, thereby correcting the position of the guide wire 1, so that the free end of the guide wire 1 enters the superficial femoral artery 112 from the deep femoral artery 113, and then the guide wire 1 is kept stationary, the sheath tube 5 is taken out, and the other end of the guide wire 1 is re-passed from the bottom of the sheath tube 5, and finally the bottom of the sheath tube 5 is placed into the superficial femoral artery along the guide wire 1; when moving the sheath tube 5, if it is necessary to rotate the sheath tube 5, the sheath core 7 can be placed in the sheath tube 5 to increase the hardness of the sheath tube 5 and ensure that the sheath tube 5 as a whole rotates at the same time.
[0033] The above is only an embodiment of the utility model, and the common knowledge such as the known specific technical scheme or characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the technical scheme of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.
Claims
1. A lower limb artery puncture sheath with a side hole, characterized in that: The invention comprises a guide wire (1), a trocar (2) and a sheath seat (3); the sheath seat (3) is fixedly connected to an extension tube interface (4), a sheath (5) and a fixed rubber sheet (6); the sheath (5) is movably connected to a sheath core (7); the sheath (5) is provided with a side hole (8) for the guide wire (1) to pass through; a radiopaque metal marker (12) is provided at the side hole (8); the fixed rubber sheet (6) is provided with a fixing hole (9); the fixing hole (9) is connected to an adhesive sheet (11) via a connecting rope (10).
2. A lower limb artery puncture sheath with side holes according to claim 1, characterized in that: The head of the guide wire (1) is an elbow structure.
3. A lower limb artery puncture sheath with side holes according to claim 1, characterized in that: The length of the sheath tube (5) is 10 cm, and the diameter of the sheath tube is 5 Fr, 6 Fr, 7 Fr or 8 Fr.
4. A lower limb artery puncture sheath with side holes according to claim 1, characterized in that: The distance between the side hole (8) and the free end of the sheath tube (5) is 4 cm.
5. The lower limb artery puncture sheath with side holes according to claim 1, characterized in that: The diameter of the side hole (8) is 2 mm.
6. A lower limb artery puncture sheath with side holes according to claim 1, characterized in that: The fixed rubber sheet (6) is provided with a grid-shaped anti-slip groove (14).
7. The lower limb artery puncture sheath with side holes according to claim 1, characterized in that: The fixing holes (9) are provided with two pieces, and the two fixing holes (9) are respectively located on two sides of the fixing rubber sheet (6).
8. The lower limb artery puncture sheath with side holes according to claim 1, characterized in that: A plurality of connecting ropes (10) are provided, and the connecting ropes (10) are non-elastic ropes.