Assembly for implementing spinal puncture and medical instrument thereof

Abstract

An assembly for implementing spinal puncture comprises an auxiliary positioning membrane, a base and a tubular puncture guide rod. When in use, the auxiliary positioning film is attached to the skin of a to-be-operated area of a patient, and CT scanning is carried out. And the base is arranged at a proper position of the auxiliary positioning film according to the result, and the puncture guide rod is assembled with the base. An operator adjusts the inclination angle of the puncture guide rod and the needle inserting angle for guiding the puncture needle to conduct puncture by means of the auxiliary protractor, the puncture depth can be determined through the relation between the outer opening of the guide tube and the scales on the puncture needle, and therefore the puncture accuracy is effectively improved, and the repeated puncture situation is reduced. Clinical verification shows that when the assembly is applied to clinic as a medical instrument, repeated puncture can be reduced, the occurrence rate of complications caused by repeated puncture or mistaken puncture can be reduced, the operation time is reduced by about 50%, the number of radioscopy times increased by repeated puncture positioning is effectively reduced, and the working efficiency is improved. The radiation exposure dose of the patient is reduced.

Description

Technical Field

[0001] The utility model relates to a surgical instrument, in particular to a component for performing a puncture operation and a medical instrument thereof. Background Art

[0002] Spinal puncture is a commonly used clinical diagnosis and treatment technique, which is widely used in neurosurgery, neurology, infectious diseases, orthopedics and other departments. By puncturing the spine, spinal canal or spinal cord, specimens can be extracted to provide important basis for the diagnosis of various central nervous system diseases, such as meningitis, abnormal intracranial pressure, Guillain-Barré syndrome, central nervous system tumors, etc.; drugs can also be injected into the target area through puncture, such as intrathecal injection, intradiscal injection, nerve root peripheral injection and in vivo injection, etc.; channels can also be established through puncture to reach the target and place treatment equipment, such as radiofrequency ablation of the intervertebral disc, plasma ablation, etc.

[0003] In clinical practice, there are two main ways to perform spinal puncture. The first is blind puncture, that is, the operating doctor directly performs puncture by hand based on rough surface positioning. It is generally suitable for scenarios with low puncture accuracy requirements. The success of puncture often depends on the doctor's personal experience. The occurrence of puncture failure, repeated puncture, and mispuncture is almost inevitable. The second is spinal puncture under CT guidance, that is, before performing spinal puncture, the patient's spinal segment for puncture is first determined for positioning radiography, and the location of the proposed puncture is preliminarily determined through CT images, and then the location of the proposed puncture is marked with a marker. Then, the operating doctor uses the puncture needle to estimate the puncture angle and depth according to the CT image and performs the puncture by hand. After the puncture is completed, the fluoroscopic radiography is performed again to determine whether the puncture needle is in the correct position and whether the puncture angle and depth are appropriate. If the position, angle or depth is inappropriate, it is necessary to perform another puncture and take another radiograph. Inaccurate puncture will directly lead to prolonged operation time, increased radiation exposure dose for patients, and increased incidence of puncture-related complications.

[0004] Therefore, choosing the correct puncture point and puncture angle and depth is the key to ensuring the success of spinal puncture, reducing repeated punctures, avoiding accidental punctures, reducing the risk of complications, shortening operation time, and reducing patients' radiation exposure.

[0005] CN114271910A discloses a spinal puncture device, comprising a mounting bracket, a multi-stage adjustment device and a puncture needle, wherein the puncture needle is connected to the mounting bracket via the multi-stage adjustment device; the multi-stage adjustment device comprises a steering shaft, a steering connection seat, a tilting arm, a lateral stretching assembly, an operating arm and a fine-tuning assembly, wherein the steering shaft and the mounting bracket rotate via the steering connection seat, the steering connection seat is fixedly mounted on the mounting bracket and drives the steering shaft to rotate, the tilting arm is rotationally connected to the steering shaft, the lateral stretching assembly is respectively connected to the tilting arm and supports the tilting arm, the operating arm is rotationally connected to the tilting arm and is located at one end of the tilting arm away from the steering shaft, the puncture needle is connected to the operating arm via the fine-tuning assembly, and the fine-tuning assembly drives the puncture needle to move, and when performing puncture work, the doctor can observe and operate other positions while keeping the position of the puncture needle unchanged.

[0006] CN116549073A discloses a spinal puncture device, comprising a fixing component, an adjusting component and a puncture component, wherein the fixing component comprises a support belt, an adjusting belt and a stabilizing seat, and the adjusting component comprises a transverse adjuster, a longitudinal adjuster, an angle adjuster and a support tube, and the support belt and the adjusting belt can be used to bypass the human body and fix the stabilizing seat on the back of the human body, and then the transverse adjuster can be activated to adjust the transverse position, the longitudinal adjuster can be used to adjust the longitudinal position, and the angle adjuster can be used to adjust the inclination angle of the support tube, and the puncture component is arranged in the support tube, so that the puncture position of the puncture component can be accurately adjusted by the adjusting component, so that the puncture can be more accurately positioned during puncture.

[0007] CN116570370A A spinal needle knife puncture navigation system, comprising: a water needle knife provided with a first navigation unit, a three-dimensional ultrasonic probe provided with a second navigation unit, an optical surgical positioning navigator and a cross-modal image display module, wherein the optical surgical positioning navigator is used to dynamically track the three-dimensional spatial coordinates of the water needle knife and the three-dimensional ultrasonic probe, and the cross-modal image display module is used for a three-dimensional spinal lesion fusion image and the position information of the knife body of the water needle knife in the three-dimensional spinal lesion fusion image, wherein the three-dimensional spinal lesion fusion image is an image obtained by registering and fusing the three-dimensional ultrasonic image data and the first image data. During the operation, the doctor can intuitively see the specific position of the needle knife of the water needle knife puncturing the patient's spine through the cross-modal image display module. Utility Model Content

[0008] One purpose of the utility model is to provide a component for performing spinal puncture, which is beneficial to the implementation of the puncture operation and improves the accuracy of the puncture.

[0009] Another object of the utility model is to provide a medical device for performing spinal puncture, thereby reducing the occurrence of repeated punctures and lowering the incidence of complications.

[0010] Another object of the utility model is to provide a medical device for performing spinal puncture, which reduces the radiofluoroscopy time and shortens the radiation exposure time of the patient.

[0011] Another object of the present invention is to provide a medical device for performing spinal puncture to reduce the operation time.

[0012] An assembly for performing a spinal puncture, comprising:

[0013] The auxiliary positioning film comprises a developing layer and an adhesive layer, wherein the contrast layer is placed on one side of the adhesive layer and the other side contacts the skin of the intended surgical site to fix the developing layer to the intended surgical site;

[0014] A base, which is placed on the auxiliary positioning film;

[0015] The puncture guide rod is assembled on the base and performs rotation and pitch.

[0016] In another specific embodiment of a component for performing spinal puncture, the base includes a first end surface and a second end surface, the second end surface is placed on the auxiliary positioning membrane, a through hole is arranged along the axial direction, the first opening of the through hole is located at the first end surface, and the second opening is located at the second end surface.

[0017] Another specific embodiment of the assembly for performing spinal puncture, the base is cylindrical, with a diameter of 2 cm and a height of 0.5 cm.

[0018] Another specific assembly embodiment for performing spinal puncture, the puncture guide rod includes an assembly and a guide tube body, the guide tube body includes a proximal end and a distal end, which is used to accommodate the puncture needle, the assembly is placed at the proximal end of the guide tube body and assembled with the base.

[0019] Another assembly for performing a spinal tap includes:

[0020] The auxiliary positioning film comprises a developing layer and an adhesive layer, wherein the contrast layer is placed on one side of the adhesive layer and the other side is in contact with the part to be operated on, so as to fix the developing layer on the part to be operated on;

[0021] The base is cylindrical, with a diameter of 2 cm and a height of 0.5 cm, and includes a first end face and a second end face, wherein the second end face is placed on the auxiliary positioning film, and a through hole is arranged along the axial direction, wherein the first opening of the through hole is located at the first end face, and the second opening is located at the second end face;

[0022] The puncture guide rod comprises an assembly part and a guide tube body. The guide tube body comprises a proximal end and a distal end for accommodating a puncture needle. The assembly part is arranged at the proximal end of the guide tube body and assembled with the first opening of the through hole.

[0023] In another specific embodiment of the assembly for performing spinal puncture, the auxiliary positioning film is a square of 10 cm×10 cm.

[0024] In another specific embodiment of the component for performing spinal puncture, the developing layer is woven by a plurality of X-ray fluoroscopic developing metal wires in a criss-cross manner, and a 0.5 cm×0.5 cm grid is formed between the metal wires to present an image in a CT device.

[0025] In another specific embodiment of the component for performing spinal puncture, the adhesive layer adopts a self-adhesive hydrogel, such as silicone, GelMA or polyester.

[0026] In another specific embodiment of the assembly for performing spinal puncture, the assembly includes an arc surface located at the outer periphery of the assembly, and the arc surface is assembled with the first opening of the through hole.

[0027] The assembly for performing spinal puncture of the utility model also comprises an auxiliary protractor, and the operator can quickly adjust the inclination angle of the puncture guide tube with the aid of the auxiliary protractor.

[0028] The component for performing spinal puncture provided by the utility model is used in neurosurgery. On the one hand, the puncture site can be effectively identified with the help of CT images. On the other hand, the inclination angle of the guide tube body can be timely and quickly adjusted according to the CT images to guide the puncture needle to perform puncture, thereby effectively improving the accuracy of puncture and reducing the occurrence of repeated punctures.

[0029] Clinically verified, the components of the utility model are used as medical devices in clinical practice to reduce the occurrence of repeated punctures, which is beneficial to reducing the incidence of complications. It not only reduces the operation time by about 50%, but also effectively reduces the radiofluoroscopy time and shortens the patient's radiation exposure time. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of an embodiment of an auxiliary positioning membrane in a component for performing spinal puncture of the utility model;

[0031] Figure 2 It is a structural schematic diagram of an embodiment of a base in a component for performing spinal puncture of the utility model;

[0032] Figure 3 It is a structural schematic diagram of an embodiment of a puncture guide rod in a component for performing spinal puncture of the utility model;

[0033] Figure 4 It is a structural schematic diagram of an embodiment of a component for performing spinal puncture according to the utility model. DETAILED DESCRIPTION

[0034] The technical solution of the utility model is described in detail below with reference to the accompanying drawings. The embodiments of the utility model are only used to illustrate the technical solution of the utility model but not to limit it. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

[0035] Figure 4 FIG. 1 is a schematic diagram of a structure of an embodiment of a component for performing spinal puncture according to the utility model. Figure 4 As shown, the assembly for performing spinal puncture in this embodiment includes an auxiliary positioning film 100, a base 200 and a puncture guide rod 300. The auxiliary positioning film 100 is attached to the part of the patient 20 where the operation is to be performed. The base 200 is placed on the auxiliary positioning film 100, and the puncture guide rod 300 is assembled with the base 200 to guide the puncture needle to perform the puncture at an angle and direction.

[0036] Figure 1 FIG. 1 is a schematic diagram of an embodiment of an auxiliary positioning membrane in a component for performing spinal puncture according to the utility model. Figure 1 As shown, the auxiliary positioning film 100 includes a developing layer 110 and an adhesive layer 120. The developing layer 110 is placed on one side of the adhesive layer 120, and the other side is in contact with the part to be operated on, so as to fix the developing layer to the part to be operated on. From the perspective of the operator, the lower part of the adhesive layer 120 is in contact with the part to be operated on, and the developing layer 110 is placed on the upper part. In this embodiment, the auxiliary positioning film 100 is square, and the specifications are as follows: 10cm×10cm. The developing layer 110 is woven in a criss-cross manner by a number of metal wires 111 for X-ray fluoroscopic development, and a 0.5cm×0.5cm grid is formed between the metal wires. In the CT device, the developing layer presents an image, so that the operator can observe the positional relationship between the auxiliary positioning film 100 and the part to be operated on, providing a basis for adjusting the angle and direction of the puncture guide rod 300.

[0037] The adhesive layer 120 is made of self-adhesive hydrogel, such as silicone, GelMA or polyester. Silicone is a common medical inert material. GelMA is a photosensitive gel that has been widely studied and applied in recent years. It has biodegradable properties and is safe. It can self-cross-link to form a gel after being exposed to ultraviolet light. In this embodiment, GelMA is first applied to the affected area where surgery is to be performed, and after solidification, a developing layer woven with metal wire is placed on it to fix the developing layer and provide support. On the other hand, before GelMA solidifies, continuous antibacterial treatment is performed on the surgical site by adding antibacterial agents and other means to reduce the occurrence of wound complications.

[0038] Figure 2 This is a schematic diagram of the structure of an embodiment of a base in a component for performing spinal puncture according to the utility model. Figure 4 ,like Figure 2 As shown, the base 200 is placed on the auxiliary positioning film 100, including a first end face 210 and a second end face 220, and the second end face 220 is placed on the auxiliary positioning film. A through hole 230 is arranged along the axial direction, and the first opening 231 of the through hole is located at the first end face 220, and the second opening (not shown) is located at the second end face 220. In this embodiment, the base 200 is cylindrical, with a diameter of 2 cm and a height of 0.5 cm.

[0039] The puncture guide rod 300 is mounted on the base 200, specifically, mounted (e.g., mounted) at the first opening 231, and can be rotated and pitched at the first opening 231. Under the guidance of the CT image of the auxiliary positioning film 100, the puncture guide rod 300 is rotated or pitched on the base 200 to adjust the angle and orientation of the puncture, thereby improving the accuracy of the puncture needle insertion.

[0040] Figure 3 FIG. 1 is a schematic structural diagram of an embodiment of a puncture guide rod in a component for performing spinal puncture according to the utility model. Figure 3 As shown, the puncture guide rod 300 of this embodiment includes an assembly 310 and a guide tube body 320. The guide tube body 320 includes a proximal end 321 and a distal end 322, which is used to accommodate a puncture needle (not shown), and the assembly 310 is arranged at the proximal end 321 of the guide tube body. Figure 4 The outer periphery of the assembly part 310 forms an arc surface, which is assembled with the first opening of the through hole, thereby improving the flexibility of the guide tube body 320 in rotating and pitching.

[0041] The assembly provided in this embodiment is suitable for neurosurgery to perform spinal puncture. Figure 4 As shown, the part of the patient 20 where the surgery is to be performed is first determined, and then the auxiliary positioning film 100 is adhered to the part where the surgery is to be performed. Specifically, from the perspective of the operator, the adhesive layer 120 is downward, in contact with and adhered to the part where the surgery is to be performed, and the developing layer 110 is upward. The base 200 is placed on the auxiliary positioning film 100, and the puncture guide rod 300 is assembled at the first opening of the through hole on it, so that the assembly 310 can flexibly and quickly rotate and pitch at the opening. In this way, under the CT image, the auxiliary positioning film 100 can provide clearer and more accurate information on the part where the surgery is to be performed, can effectively identify the site of puncture, and adjust the angle of the puncture guide rod 300 accordingly, so that the angle and direction of the puncture needle insertion are more accurate, effectively improve the accuracy of puncture, and reduce the occurrence of repeated punctures. The auxiliary positioning film 100 woven with metal wire reduces the resistance of the puncture needle insertion and enhances the clinical operability of the assembly of this embodiment.

[0042] Clinically verified, the application of the components of this embodiment not only reduces the operation time by about 50%, but also effectively reduces the radiofluoroscopy time and shortens the patient's radiation exposure time, with significant effects.

Claims

1. A component for performing a spinal puncture, characterized in that include: The auxiliary positioning film comprises a developing layer and an adhesive layer, wherein the contrast layer is placed on one side of the adhesive layer and the other side contacts the skin of the intended surgical site to fix the developing layer to the intended surgical site; A base, which is placed on the auxiliary positioning film; The puncture guide rod is assembled on the base and performs rotation and pitch.

2. The assembly for performing a spinal puncture according to claim 1, characterized in that The developing layer is formed by weaving a plurality of metal wires for X-ray fluoroscopic development in a crisscross manner, and a 0.5 cm×0.5 cm grid is formed between the metal wires.

3. The assembly for performing a spinal puncture according to claim 1, characterized in that The base comprises a first end surface and a second end surface, the second end surface is arranged on the auxiliary positioning film, a through hole is arranged along the axial direction, the first opening of the through hole is located at the first end surface, and the second opening is located at the second end surface.

4. The assembly for performing a spinal puncture according to claim 1, characterized in that The base is cylindrical.

5. The assembly for performing a spinal puncture according to claim 1, characterized in that The puncture guide rod includes an assembly part and a guide tube body. The guide tube body includes a proximal end and a distal end for accommodating a puncture needle. The assembly part is arranged at the proximal end of the guide tube body and assembled with the base.

6. The assembly for performing a spinal puncture according to claim 1, characterized in that The base comprises a first end surface and a second end surface, the second end surface is arranged on the auxiliary positioning film, a through hole is arranged along the axial direction, the first opening of the through hole is located at the first end surface, and the second opening is located at the second end surface; The puncture guide rod comprises an assembly part and a guide tube body. The guide tube body comprises a proximal end and a distal end for accommodating a puncture needle. The assembly part is arranged at the proximal end of the guide tube body and assembled with the first opening of the through hole.

7. An assembly for performing a spinal puncture according to claim 6, characterized in that The assembly part comprises an arc surface located at the outer periphery of the assembly part, and the arc surface is assembled with the first opening of the through hole.

8. An assembly for performing a spinal puncture according to claim 6, characterized in that The base is cylindrical in shape, with a diameter of 2 cm and a height of 0.5 cm.

9. The assembly for performing a spinal puncture according to claim 1, characterized in that The auxiliary positioning film is 10cm×10cm square.

10. A medical device, characterized in that The invention comprises the assembly according to any one of claims 1 to 9.

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