A coupling positioning device for ultrasonic interventional puncture

Abstract

The present invention discloses a coupling positioning device for ultrasonic interventional puncture, which relates to the field of surgical puncture auxiliary instruments. It includes a skin positioning cushion, the outer edge of the lower end surface of which is provided with an adhesive layer; a probe coupling soft sleeve, which is located on the upper part of the skin positioning cushion and is integrated with the skin positioning cushion by the same material; the probe coupling soft sleeve is covered and matched with the probe part of the ultrasonic probe; the probe connection clamp, which includes an A half-body clamp and a B half-body clamp symmetrically arranged with the A half-body clamp; the A half-body clamp and the B half-body clamp are tightened and fixed with the ultrasonic probe by locking screws at the left and right ends. The present invention can establish coupling positioning between the body surface and the ultrasonic probe, prevent the ultrasonic probe from sliding on the body surface during puncture, and allow the angle of the ultrasonic probe to be adjusted, thereby reducing the difficulty of puncture and improving the safety of puncture.

Description

Technical Field

[0001] The present invention relates to the technical field of surgical puncture instruments, and in particular to a coupling positioning device for ultrasonic interventional puncture, and may specifically involve an international patent classification number of A61B17 / 34. Background Art

[0002] The ultrasound probe puncture holder is an auxiliary medical device, which is mainly used for puncture operation under ultrasound guidance. It is used to connect the ultrasound probe and provide a stable supporting structure for the puncture needle.

[0003] Ultrasound probe puncture holders are widely used for biopsy puncture of various tissues and organs. For example, in breast biopsy, the puncture holder guides the puncture needle to accurately obtain breast mass tissue for pathological examination to determine whether the mass is benign or malignant. In lung nodule biopsy, due to the special nature of lung tissue, the puncture holder can help doctors accurately insert the puncture needle into the nodule under ultrasound guidance to obtain sufficient tissue samples while avoiding damage to surrounding blood vessels and bronchi.

[0004] In the field of interventional treatment, the puncture stent also plays an important role. For example, in the puncture and drainage of liver cysts, the puncture stent is used to accurately insert the puncture needle into the cyst, and then the cyst fluid is drained out through the puncture needle to reduce the pressure of the cyst on the surrounding tissues. When radiofrequency ablation is used to treat liver cancer, the puncture stent can guide the radiofrequency ablation needle to accurately reach the tumor site, ensuring that the ablation range covers the tumor tissue and improving the treatment effect.

[0005] At present, ultrasound probe puncture holders are used to position and connect the puncture needle and the ultrasound probe, and the positioning between the ultrasound probe and the human body is also very important. Since the ultrasound probe and the human skin need to be filled with ultrasound coupling agent to eliminate air, and the ultrasound coupling agent has a certain lubricity, when the operator holds the ultrasound probe and adjusts the angle on the body surface to observe the puncture needle, the ultrasound probe is easy to slide on the body surface and deviate from the preset body surface marking area. If the probe slips after the puncture needle is inserted into the human body, the most direct risk is that the puncture needle deviates from the pre-planned puncture path. For example, when performing a renal puncture biopsy, the puncture needle needs to accurately enter a specific area of ​​the kidney to obtain a tissue sample. If the probe slides, the puncture path displayed on the ultrasound image will change, and the doctor may misjudge the position of the puncture needle, causing the puncture needle to deviate from the target area, and may even damage important surrounding blood vessels, nerves or other organs.

[0006] In addition, when the puncture needle has been inserted into the human body, the probe may slip, making it impossible for the doctor to accurately determine the relative position of the puncture needle and the surrounding tissues. Take thoracotomy as an example. The chest cavity contains important structures such as the lungs, heart, and large blood vessels. If the probe slips, the doctor may not be able to detect the puncture needle approaching these dangerous structures in time, causing damage to them, leading to serious complications such as pneumothorax and hemothorax. Therefore, in order to prevent the ultrasound probe from slipping, the operator needs to observe the ultrasound monitoring image on the one hand, and pay attention to the relative position between the ultrasound probe and the body surface on the other hand, which places extremely high demands on the operator. Summary of the invention

[0007] The technical problem to be solved by the present invention is to provide a coupling positioning device for ultrasonic interventional puncture in response to the above-mentioned technical deficiencies, which can establish coupling positioning between the body surface and the ultrasonic probe to prevent the ultrasonic probe from sliding on the body surface during puncture, and allow the angle of the ultrasonic probe to be adjusted, thereby reducing the difficulty of puncture and improving the safety of puncture.

[0008] The technical solution adopted by the present invention is to provide a coupling positioning device for ultrasonic interventional puncture, comprising A skin positioning cushion, wherein an adhesive layer is arranged at the outer edge of the lower end surface of the skin positioning cushion; the adhesive layer is covered with a release film; a surrounding guide groove is arranged on the inner side of the adhesive layer and the bottom surface of the skin positioning cushion; the front end of the surrounding guide groove is upwardly connected to an A conduit, and an A sealing cap is installed on the A conduit; the rear end of the surrounding guide groove is upwardly connected to a B conduit, and a B sealing cap is installed on the B conduit; the lower end surface of the skin positioning cushion, the area inside the surrounding guide groove is an ultrasonic coupling area; The probe coupling soft cover is located on the upper part of the skin positioning soft pad and is integrated with the skin positioning soft pad by the same material; the probe coupling soft cover is covered and matched with the probe part of the ultrasound probe; the acoustic impedance range of the probe coupling soft cover and the skin positioning soft pad is 1.5-1.7×10 6 kg / (m².s); The probe connecting clamp comprises an A half clamp and a B half clamp symmetrically arranged with the A half clamp; the lower ends of the A half clamp and the B half clamp are both fixedly connected with the upper end of the probe coupling soft sleeve; the A half clamp and the B half clamp are tightened and fixed with the ultrasonic probe by locking screws at the left and right ends.

[0009] To further optimize the technical solution, a puncture support arm is provided on the A half-body hoop, and the end of the puncture support arm is clamped and connected to a puncture guide block via a positioning bolt; and at least one puncture needle guide hole is penetrated through the puncture guide block.

[0010] To further optimize this technical solution, the skin positioning cushion and the probe coupling soft cover are made of medical silicone.

[0011] To further optimize the technical solution, the adhesive layer is a hydrocolloid layer.

[0012] To further optimize the technical solution, a positioning clamping area is provided on the side of the probe part of the ultrasonic probe, and a hard cushion layer is provided in cooperation with the area of ​​the probe coupling soft sleeve corresponding to the positioning clamping area.

[0013] In the technical solution recorded in the present invention, the skin positioning cushion and the probe coupling soft sleeve are integrally arranged, and the acoustic impedance of the material is equivalent to the acoustic impedance of human skin, so that the ultrasound will not generate interface reflection when passing through the two and the skin. In the present invention, the skin positioning cushion can be first pasted to the predetermined skin area, and then can be injected into the space between the skin positioning cushion and the skin through the A catheter, and the air and excess coupling agent are discharged from the B catheter, and then the A catheter and the B catheter are sealed. The beneficial effect of the method of pasting first, adding the ultrasonic coupling agent later, and then discharging the excess coupling agent is that: on the one hand, once the ultrasonic coupling agent is applied excessively or the area is too large, the skin cannot be firmly pasted by the colloid, and the excess ultrasonic coupling agent must be wiped clean before the skin can be effectively pasted. This problem does not exist when the ultrasonic coupling agent is added after pasting first. On the other hand, when the air and the excess ultrasonic coupling agent are discharged from between the skin positioning cushion and the skin, the air will not enter again when the A catheter and the B catheter are sealed. Similarly, the air and the excess ultrasonic coupling agent between the ultrasonic probe and the probe coupling cushion are discharged, and then the ultrasonic probe and the probe coupling cushion can be sealed and locked together by connecting the clamp through the probe. In this way, the ultrasound probe will always be in good contact and the image will be clear when the angle changes.

[0014] Other technical effects of the present invention will be gradually clarified in the development of the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 yes Figure 1 Schematic diagram of the structure in another direction; Figure 3 It is a schematic diagram of the decomposition of the present invention.

[0016] In the figure, 1. ultrasonic probe; 2. skin positioning cushion; 3. adhesive layer; 4. surrounding guide groove; 5. A catheter; 6. A sealing cap; 7. B catheter; 8. B sealing cap; 9. ultrasonic coupling area; 10. probe coupling sleeve; 11. A half hoop; 12. B half hoop; 13. locking screw; 14. puncture support arm; 15. positioning bolt; 16. puncture guide block; 17. puncture needle guide hole; 18. positioning clamping area; 19. hard cushion layer. DETAILED DESCRIPTION

[0017] like Figure 1 , Figure 2, Figure 3 As shown, a coupling positioning device for ultrasonic interventional puncture is provided, comprising A skin positioning cushion 2, wherein an adhesive layer 3 is provided at the outer edge of the lower end surface of the skin positioning cushion 2; the adhesive layer 3 is covered with a release film; on the inner side of the adhesive layer 3, a surrounding guide groove 4 is provided on the bottom surface of the skin positioning cushion 2; the front end of the surrounding guide groove 4 is upwardly connected to an A conduit 5, and an A sealing cap 6 is installed on the A conduit 5; the rear end of the surrounding guide groove 4 is upwardly connected to a B conduit 7, and a B sealing cap 8 is installed on the B conduit 7; the lower end surface of the skin positioning cushion 2, the area inside the surrounding guide groove 4 is an ultrasonic coupling area 9; The probe coupling soft cover 10 is located on the upper part of the skin positioning soft pad 2 and is integrated with the skin positioning soft pad 2 by the same material; the probe coupling soft cover 10 is covered and matched with the probe part of the ultrasound probe 1; the acoustic impedance range of the probe coupling soft cover 10 and the skin positioning soft pad 2 is 1.5-1.7×10 6 kg / (m².s); The probe connection clamp includes an A half-body clamp 11 and a B half-body clamp 12 symmetrically arranged with the A half-body clamp 11; the lower ends of the A half-body clamp 11 and the B half-body clamp 12 are fixedly connected to the upper end of the probe coupling soft sleeve 10; the A half-body clamp 11 and the B half-body clamp 12 are tightened and fixed to the ultrasonic probe 1 through the locking screws 13 at the left and right ends. The material is made in one piece, so that the interface reflection can be eliminated. The advantage of the soft material is that it can adapt to the curvature of the human skin and adapt to the angle change of the ultrasonic probe 1 through elastic deformation.

[0018] The probe connection clamp is made of hardware material and is fixed to the probe coupling soft cover 10 by secondary injection molding or bonding. The function of the probe connection clamp is to achieve a hard connection with the ultrasound probe 1 to prevent the upper part of the skin positioning soft cover from moving, causing sealing failure or falling off.

[0019] About the operation of coupling positioning: First, disinfect the marked area and the skin positioning pad 2, and then wipe dry. Then add ultrasonic coupling agent to the probe coupling soft cover 10, place the ultrasonic probe 1 in the probe coupling soft cover 10, squeeze out the air and excess ultrasonic coupling agent, wipe and lock the probe connection clamp to make it hard connected with the ultrasonic probe 1.

[0020] Then, remove the release film of the skin positioning pad 2, stick the skin positioning pad 2 to the marked area of ​​the skin, remove the A sealing cap and the B sealing cap, and then inject the ultrasonic coupling agent into the A tube 5, and the air and excess coupling agent are discharged from the B tube 7. Then, press the skin positioning pad 2 to make it fit tightly against the skin, and finally cover the A sealing cap 6 and the B sealing cap 8. This completes the positioning and coupling between the ultrasonic probe 1 and the human skin.

[0021] In order to reduce the thickness of the ultrasonic coupling agent between the skin positioning pad 2 and the skin, the B cap 8 can be closed and the excess ultrasonic coupling agent can be extracted from the A catheter 5 with a syringe. The function of the surrounding guide groove 4 is to prevent the A catheter 5 and the B catheter 7 from being blocked by the skin during suction.

[0022] To further optimize this embodiment, a puncture arm 14 is provided on the A half body hoop 11, and the end of the puncture arm 14 is clamped and connected to a puncture guide block 16 via a positioning bolt 15; and at least one puncture needle guide hole 17 is penetrated through the puncture guide block 16.

[0023] In this embodiment, in addition to providing coupling positioning between the ultrasonic probe 1 and the human skin, a puncture guide structure is also built between the ultrasonic probe 1 and the puncture needle. The steps and material costs of setting up an additional puncture frame can be omitted, and the space is effectively utilized. The relative angle between the puncture needle and the ultrasonic probe 1 can be achieved by adjusting the angle of the puncture guide block 16, and the number of puncture needle guide holes 17 can be selected and adapted according to the specifications commonly used in the department.

[0024] To further optimize this embodiment, the skin positioning cushion 2 and the probe coupling soft sleeve 10 are made of medical silicone. The density of medical silicone is usually around 1-1.2g / cm³, the elastic modulus is between tens of kPa and hundreds of kPa, and the sound velocity is around 1400-1600m / s. These parameters are close to the acoustic parameters of human soft tissue (such as the sound velocity of fat tissue is about 1450m / s, and the sound velocity of muscle tissue is about 1580m / s), so that the acoustic response of human tissue can be better simulated in scenarios such as ultrasound and other medical examinations or testing of treatment equipment.

[0025] Further optimizing this embodiment, the adhesive layer 3 is a hydrocolloid layer. The hydrocolloid layer can be directly attached to the human body and has little irritation to the skin. In addition, it has good sealing performance with the skin and can be repeatedly cleaned and disinfected, thereby reducing the cost of consumables.

[0026] To further optimize this embodiment, a positioning clamping area 18 is provided on the side of the probe portion of the ultrasonic probe 1 , and a hard cushion layer 19 is provided in cooperation with the area of ​​the probe coupling soft cover 10 corresponding to the positioning clamping area 18 .

[0027] The side of a general ultrasound probe 1 has a special area for positioning and holding. The area is flat, not curved, and is convenient for clamping and fixing when the puncture rack is installed. The purpose of this embodiment is that when the puncture rack is installed, it can be clamped on the hard cushion layer 19, so that it can be effectively hard-connected with the ultrasound probe 1 and prevent the probe coupling soft cover 10 from being clamped and damaged.

[0028] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0029] In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

Claims

1. A coupling positioning device for ultrasonic interventional puncture, used for coupling positioning between an ultrasonic probe and human skin; characterized by: include A skin positioning cushion, wherein an adhesive layer is arranged at the outer edge of the lower end surface of the skin positioning cushion; the adhesive layer is covered with a release film; a surrounding guide groove is arranged on the inner side of the adhesive layer and the bottom surface of the skin positioning cushion; the front end of the surrounding guide groove is upwardly connected to an A conduit, and an A sealing cap is installed on the A conduit; the rear end of the surrounding guide groove is upwardly connected to a B conduit, and a B sealing cap is installed on the B conduit; the lower end surface of the skin positioning cushion, the area inside the surrounding guide groove is an ultrasonic coupling area; The probe coupling soft cover is located on the upper part of the skin positioning soft pad and is integrated with the skin positioning soft pad by the same material; the probe coupling soft cover is covered and matched with the probe part of the ultrasound probe; the acoustic impedance range of the probe coupling soft cover and the skin positioning soft pad is 1.5-1.7×10 6 kg / (m².s); The probe connecting clamp comprises an A half clamp and a B half clamp symmetrically arranged with the A half clamp; the lower ends of the A half clamp and the B half clamp are both fixedly connected with the upper end of the probe coupling soft sleeve; the A half clamp and the B half clamp are tightened and fixed with the ultrasonic probe by locking screws at the left and right ends.

2. A coupling positioning device for ultrasonic interventional puncture according to claim 1, characterized in that: The A half hoop is provided with a puncture support arm, and the end of the puncture support arm is clamped and connected with a puncture guide block through a positioning bolt; and at least one puncture needle guide hole is penetrated and provided on the puncture guide block.

3. The coupling positioning device for ultrasonic interventional puncture according to claim 1, characterized in that: The skin positioning cushion and the probe coupling soft cover are both made of medical silica gel.

4. The coupling positioning device for ultrasonic interventional puncture according to claim 1, characterized in that: The adhesive layer is a hydrocolloid layer.

5. The coupling positioning device for ultrasonic interventional puncture according to claim 1, characterized in that: A positioning clamping area is arranged on the side of the probe part of the ultrasonic probe, and a hard cushion layer is arranged in cooperation with the area of ​​the probe coupling soft sleeve corresponding to the positioning clamping area.

Images