Balloon catheter positioning device for brain surgery

Abstract

The utility model discloses a balloon catheter positioning device for brain surgery, which belongs to the field of medical instruments and is characterized in that a first limiting rib and a second limiting rib in the circumferential direction are arranged on a balloon catheter at intervals, axial protrusions are arranged between the first limiting rib and the second limiting rib, and the protrusions are symmetrically arranged along the center line of the balloon catheter; the balloon catheter is sleeved with a laser generator mounting assembly, and the laser generator mounting assembly comprises a laser generator fixing frame fixed between the first limiting rib and the second limiting rib and a laser generator adjusting frame rotationally connected to the laser generator fixing frame in a sleeving mode; according to the laser generator installation assembly, the laser generator adjusting frame and the laser generator fixing frame are connected in a tooth-shaped clamping mode, and angle adjustment of the laser generator adjusting frame within the range of 30-150 degrees is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical equipment, and in particular relates to a balloon catheter positioning device for brain surgery. Background Art

[0002] Paracentesis is a diagnostic and treatment technique in which a needle is inserted into the body cavity to extract secretions for testing, inject gas or contrast agent into the body cavity for imaging examination, or inject drugs into the body cavity. The purpose of puncture is to draw blood for testing, blood transfusion, infusion and catheter insertion for angiography.

[0003] With the development of neuroendoscopic technology and microscopic technology, channels are placed into lesions for the removal of lesions, and their application range is becoming more and more extensive. How to place the channel and drainage tube into the predetermined target point? Currently, CT positioning method and 3Dslicer software positioning method are used to place the channel or drainage tube under visual inspection, which is more prone to errors, resulting in deviation of the puncture position or puncture failure. Utility Model Content

[0004] In view of the problems existing in the prior art, the utility model provides a balloon catheter positioning device for brain surgery.

[0005] The utility model is implemented as follows: a balloon catheter positioning device for brain surgery, wherein a first radial limiting rib and a second radial limiting rib are arranged at intervals on the balloon catheter, an axial protrusion is arranged between the first limiting rib and the second limiting rib, and the protrusions are symmetrically arranged along the center line of the balloon catheter; a laser generator mounting assembly is sleeved on the balloon catheter, and the laser generator mounting assembly includes a laser generator fixing frame fixed between the first limiting rib and the second limiting rib, and a laser generator adjusting frame rotatably sleeved on the laser generator fixing frame.

[0006] Furthermore, the laser generator fixing frame is configured as a symmetrical structure, including at least two symmetrically arranged laser generator mounting seats, each of the laser generator mounting seats has a side wall fixedly connected to a fixing frame connecting beam, and the other end of the fixing frame connecting beam is connected to a fixing frame sleeve.

[0007] Furthermore, the fixing frame sleeve is provided with upper and lower parts, and the outer diameter of the upper part is smaller than the outer diameter of the lower part; and the outer surface of the upper part of the fixing frame sleeve is evenly provided with axial external teeth.

[0008] Furthermore, the inner surface of the fixing frame sleeve is symmetrically provided with clamping grooves, and the protrusions are clamped in the clamping grooves to prevent the laser generator fixing frame from rotating circumferentially.

[0009] Furthermore, the laser generator adjustment frame is configured as a symmetrical structure, including at least two symmetrically arranged laser generator mounting seats, the side walls of the laser generator mounting seats are fixedly connected with an adjustment frame connecting beam, the other end of the adjustment frame connecting beam is connected with an adjustment frame sleeve, and the adjustment frame sleeve is sleeved on the upper part of the fixed frame sleeve.

[0010] Furthermore, the inner wall of the adjusting frame sleeve is evenly provided with axial internal teeth, and the internal teeth are engaged with the external teeth to limit the circumferential relative position of the laser generator adjusting frame and the laser generator fixing frame.

[0011] Furthermore, a laser via hole is provided on the bottom surface of the laser generator mounting seat, and the laser via hole allows the laser beam to pass through.

[0012] Furthermore, a laser generator is fixedly installed in each laser generator mounting seat.

[0013] Furthermore, each of the laser generators is individually provided with a switch component.

[0014] Furthermore, the fixing frame connecting beam is configured as a structure with one end being narrow and the other end being wide, and the structure with one end being narrow and the other end being wide enhances the connection strength of the fixing frame connecting beam; the adjusting frame connecting beam is configured as a structure with one end being narrow and the other end being wide, and the structure with one end being narrow and the other end being wide enhances the connection strength of the adjusting frame connecting beam.

[0015] The utility model has the advantages and technical effects: the laser generator installation assembly in the utility model adopts a laser generator adjustment frame and a laser generator fixing frame to be connected by toothed snap-in connection, so that the laser generator adjustment frame can be adjusted in angle within the range of 30-150 degrees; the laser generator installation assembly is inserted from the front end of the balloon catheter, and the laser generator fixing frame is fixed on the balloon catheter through circumferential and axial bidirectional positioning; the laser generator adjustment frame is rotated to adjust the circumferential angle between the laser generator adjustment frame and the laser generator fixing frame. By adjusting the laser generator adjustment frame, the laser beam is made to coincide with the line drawn on the skull in advance, and then the balloon catheter kit is punctured to the lesion position, so as to prevent the needle from being skewed during puncture and failing to reach the lesion position directly.

[0016] The balloon expansion method in the balloon catheter is used to establish a channel in the brain tissue, and then a brain pressure plate is used to maintain the channel and protect the surrounding brain tissue during the operation, so as to extract intracranial hematoma, cerebrospinal fluid, etc. to achieve the therapeutic effect.

[0017] The four laser generators can emit two intersecting laser beams, the focus of which is the location of the lesion. Therefore, the device can more efficiently determine the location of the lesion. Each laser generator is controlled by an independent switch, which is conducive to the selectivity of the laser generator and is more convenient for maintenance and replacement. Brief Description of the Drawings

[0018] Figure 1 is a schematic diagram of the use state provided by an embodiment of the present utility model;

[0019] Figure 2 is a schematic diagram of the structure of a laser generator fixing bracket provided by an embodiment of the present utility model;

[0020] Figure 3 is a schematic diagram of the internal structure of a laser generator fixing bracket provided by an embodiment of the present utility model;

[0021] Figure 4 is a schematic diagram of the structure of a laser generator adjusting bracket provided by an embodiment of the present utility model;

[0022] Figure 5 is a schematic diagram of the structure after the assembly of the laser generator adjusting bracket and the laser generator fixing bracket provided by an embodiment of the present utility model;

[0023] Figure 6 is a schematic diagram of the structure of a balloon catheter provided by an embodiment of the present utility model.

[0024] In the figure: 1. Balloon catheter; 2. First limiting rib; 3. Second limiting rib; 4. Protrusion; 5. Laser generator fixing bracket; 6. Card slot; 7. External teeth; 8. Laser generator mounting seat; 9. Laser through hole; 10. Laser generator adjusting bracket; 11. Internal teeth; 12. Laser generator; 13. Fixing bracket connecting beam; 14. Fixing bracket sleeve; 15. Adjusting bracket connecting beam; 16. Adjusting bracket sleeve; 17. Battery; 18. Switch assembly; 19. Laser beam. Detailed Embodiment

[0025] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0026] Currently, in neurosurgery, the CT positioning method is used to mark lines on the patient's skull in advance. The intersection of the two lines is the puncture position, and the doctor further treats the patient's lesion at the puncture position; this device uses the laser line to coincide with the lines drawn on the skull, and then punctures the balloon catheter kit to the lesion position, preventing skew during needle puncture and deviation between the puncture position and the lesion position.

[0027] Refer to Figures 1 to 6A balloon catheter positioning device for brain surgery, wherein a first radial limiting rib 2 and a second radial limiting rib 3 are arranged at intervals on the balloon catheter 1, an axial protrusion 4 is arranged between the first limiting rib 2 and the second limiting rib 3, and the protrusion 4 is symmetrically arranged along the center line of the balloon catheter 1; the first limiting rib 2, the second limiting rib 3 and the protrusion 4 are all integrally formed with the balloon catheter 1.

[0028] The balloon catheter 1 is sleeved with a laser generator mounting assembly, which includes a laser generator fixing frame 5 clamped between the first limiting rib 2 and the second limiting rib 3, and the laser generator fixing frame 5 is set as a symmetrical structure, including symmetrically arranged laser generator mounting seats 8; the side walls of the two laser generator mounting seats 8 are integrally formed with a fixing frame connecting beam 13, and the other ends of the fixing frame connecting beam 13 are connected to the fixing frame sleeve 14, and the fixing frame connecting beam 13 and the fixing frame sleeve 14 are integrally formed; the upper outer diameter of the outer surface of the fixing frame sleeve 14 is smaller than the lower outer diameter, and the fixing frame connecting beam 13 is connected to the lower part of the outer surface of the fixing frame sleeve 14; the upper part of the outer surface of the fixing frame sleeve 14 is integrally formed with external teeth 7, and the external teeth 7 are evenly distributed along the axial direction of the fixing frame sleeve 14 as 36, that is, one is set every 10 degrees; the fixing frame connecting beam 13 is set as a structure with one end narrow and the other end wide, and the structure with one end narrow and the other end enhances the connection strength of the fixing frame connecting beam 13.

[0029] The inner surface of the fixing frame sleeve 14 is symmetrically provided with a clamping groove 6, and the protrusion 4 is clamped in the clamping groove 6 to prevent the laser generator fixing frame 5 from rotating in the circumferential direction.

[0030] The laser generator installation assembly further comprises a laser generator adjustment frame 10 which is rotatably sleeved on the laser generator fixing frame 5 .

[0031] The laser generator adjustment frame 10 is configured as a symmetrical structure, including symmetrically arranged laser generator mounting seats 8, and the side walls of the two laser generator mounting seats 8 are respectively integrally formed with adjustment frame connecting beams 15, and the adjustment frame connecting beams 15 are configured as a structure with one end wide and the other end narrow, and the structure with one end wide and the other end narrow enhances the connection strength of the adjustment frame connecting beams 15; the other ends of the adjustment frame connecting beams 15 are respectively connected to the adjustment frame sleeves 16, and the adjustment frame connecting beams 15 and the adjustment frame sleeves 16 are also integrally formed.

[0032] The laser generator adjustment frame 10 is sleeved on the upper part of the fixed frame sleeve 14 of the laser generator fixed frame 5 through the adjustment frame sleeve 16, and the bottom surface of the adjustment frame sleeve 16 is against the diameter change of the fixed frame sleeve 14. The inner wall of the adjustment frame sleeve 16 is integrally formed with internal teeth 11, and the internal teeth 11 are evenly distributed along the axial direction of the adjustment frame sleeve 16, that is, one is set every 10 degrees; the internal teeth 11 are staggered and engaged with the external teeth 7. When it is necessary to adjust the circumferential position of the laser generator adjustment frame 10 relative to the laser generator fixed frame 5, the laser generator adjustment frame 10 is rotated, and the internal teeth 11 bounces relative to the external teeth 7; after the external force on the rotation of the laser generator adjustment frame 10 is cancelled, the internal teeth 11 and the external teeth 7 are staggered and engaged again, and when there is no external force, the laser generator adjustment frame 10 and the laser generator fixed frame 5 remain relatively still.

[0033] Each of the laser generator mounting seats 8 is configured as a barrel-shaped structure, and a laser through-hole 9 is provided on the bottom surface of the barrel-shaped structure, and the laser through-hole 9 allows the laser to pass through; the laser generator 12 is sequentially installed in the laser generator mounting seat 8, and the laser generator 12 is clamped in the laser generator mounting seat 8 by interference fit; then the battery 17 is installed, and the battery 17 provides working power for the laser generator 12; the switch component 18 is plugged into the top opening of the laser generator mounting seat 8, and the switch component 18 is fixedly connected or bonded to the laser generator mounting seat 8 by interference fit; the switch component 18, the battery 17 and the laser generator 12 are electrically connected, and the laser generator 12 is turned on and off by pressing the switch.

[0034] Furthermore, each laser generator 12 is individually provided with a switch assembly 18 to facilitate individual control and maintenance of the laser generator 12 .

[0035] The aforementioned switch assembly 18, battery 17 and laser generator 12 are all prior art, and their specific structures and working principles are not described in detail.

[0036] The working principle of the utility model is as follows:

[0037] The laser generator adjustment frame 10 and the laser generator fixing frame 5, which are assembled with the switch assembly 18, the battery 17 and the laser generator 12, are assembled into a laser generator installation assembly through the staggered engagement of the inner teeth 11 and the outer teeth 7. Then the laser generator installation assembly is sleeved onto the balloon catheter 1, so that the upper end surface of the laser generator adjustment frame 10 abuts against the second limiting rib 3, and the lower end surface of the laser generator fixing frame 5 abuts against the first limiting rib 2. Since the bottom surface of the adjustment frame sleeve 16 abuts against the diameter change of the fixing frame sleeve 14, the laser generator fixing frame 5 and the laser generator adjustment frame 10 are relatively fixed to the balloon catheter 1 in the axial direction; at the same time, the card slot 6 of the laser generator fixing frame 5 is engaged with the protrusion 4, so that the laser generator fixing frame 5 and the balloon catheter 1 are relatively fixed in the circumferential direction; the staggered engagement of the inner teeth 11 and the outer teeth 7 makes the circumferential positions of the laser generator fixing frame 5 and the laser generator adjustment frame 10 relatively fixed.

[0038] When the user operates, he turns on the switches of the laser generators 12 respectively. Each laser generator 12 can emit a fan-shaped laser beam. When each laser beam coincides with the pre-drawn line on the skull, it means that the balloon catheter kit coincides with the lesion site and the next operation can be carried out. In addition, if there is only one horizontal line, one group of laser generators can be turned off to facilitate positioning.

[0039] Through the design of the device structure, a multi-angle adjustable laser positioning balloon catheter kit is provided for brain surgery. It is easy to use and can quickly locate the puncture point of the balloon catheter, which is beneficial to reduce iatrogenic injuries, improve surgical efficiency, and alleviate patient pain.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A balloon catheter positioning device for brain surgery, wherein the balloon catheter (1) is provided with radial first limiting ribs (2) and second limiting ribs (3) at intervals, an axial protrusion (4) is provided between the first limiting rib (2) and the second limiting rib (3), and the protrusion (4) is symmetrically arranged along the center line of the balloon catheter (1); characterized in that: The balloon catheter (1) is sleeved with a laser generator mounting assembly, the laser generator mounting assembly comprising a laser generator fixing frame (5) fixed between the first limiting rib (2) and the second limiting rib (3), and a laser generator adjusting frame (10) rotatably sleeved on the laser generator fixing frame (5).

2. The balloon catheter positioning device for brain surgery according to claim 1, characterized in that: The laser generator fixing frame (5) is arranged as a symmetrical structure, comprising at least two symmetrically arranged laser generator mounting seats (8), the side wall of each laser generator mounting seat (8) being fixedly connected to a fixing frame connecting beam (13), and the other end of the fixing frame connecting beam (13) being connected to a fixing frame sleeve (14).

3. The balloon catheter positioning device for brain surgery according to claim 2, characterized in that: The fixing frame sleeve (14) is provided in two parts, the upper part and the lower part, and the outer diameter of the upper part is smaller than the outer diameter of the lower part; the upper outer surface of the fixing frame sleeve (14) is evenly provided with axial external teeth (7).

4. The balloon catheter positioning device for brain surgery according to claim 2, characterized in that: The inner surface of the fixing frame sleeve (14) is symmetrically provided with clamping grooves (6), and the protrusions (4) are clamped in the clamping grooves (6) to prevent the laser generator fixing frame (5) from rotating in a circumferential direction.

5. The balloon catheter positioning device for brain surgery according to claim 3, characterized in that: The laser generator adjustment frame (10) is arranged as a symmetrical structure, comprising at least two symmetrically arranged laser generator mounting seats (8), the side walls of the laser generator mounting seats (8) being fixedly connected with an adjustment frame connecting beam (15), the other end of the adjustment frame connecting beam (15) being connected with an adjustment frame sleeve (16), and the adjustment frame sleeve (16) being sleeved on the upper portion of the fixed frame sleeve (14).

6. The balloon catheter positioning device for brain surgery according to claim 5, characterized in that: The inner wall of the adjustment frame sleeve (16) is evenly provided with axial internal teeth (11), and the internal teeth (11) are engaged with the external teeth (7) to limit the circumferential relative position of the laser generator adjustment frame (10) and the laser generator fixing frame (5).

7. The balloon catheter positioning device for brain surgery according to claim 5 or 6, characterized in that: The bottom surface of the laser generator mounting seat (8) is provided with a laser through hole (9), and the laser through hole (9) allows the laser beam to pass through.

8. The balloon catheter positioning device for brain surgery according to claim 7, characterized in that: A laser generator (12) is fixedly mounted in each laser generator mounting seat (8).

9. The balloon catheter positioning device for brain surgery according to claim 8, characterized in that: Each of the laser generators (12) is individually provided with a switch component (18).

10. The balloon catheter positioning device for brain surgery according to claim 9, characterized in that: The fixing frame connecting beam (13) is configured as a structure with one end narrow and the other end wide, and the structure with one end narrow and the other end wide enhances the connection strength of the fixing frame connecting beam (13); the adjusting frame connecting beam (15) is configured as a structure with one end narrow and the other end wide, and the structure with one end narrow and the other end wide enhances the connection strength of the adjusting frame connecting beam (15).

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