Detachable head fixing device capable of being used for DSA

Abstract

The invention discloses a detachable head fixing device capable of being used for DSA, and relates to the technical field of medical auxiliary instruments.The detachable head fixing device comprises a head base, an arc-shaped concave limiting groove is formed in the center of the upper end of the head base, triangular sponge side pads are placed on the two sides of the limiting groove, and a fixing helmet is fixedly connected to the rear end of the head base; the fixing helmet is of a semicircular shell structure, the upper end of the fixing helmet is fixedly connected with a forehead pressing pad corresponding to the forehead of a patient, the two sides, close to the front, of the upper end of the fixing helmet are fixedly connected with face binding bands, and the face binding bands on the two sides bypass the nose bridge of the patient and then are fixedly connected through hook-and-loop fasteners. The lower jaw bandage bypasses the lower jaw of the patient and then is fixedly connected with the other side of the head base, through multiple fixing structures, the fixing stability of the head of the patient is guaranteed, meanwhile, the fixing comfort of the head of the patient is guaranteed, all materials are not metal materials, and the radiography effect cannot be affected.

Description

Technical Field

[0001] The present invention relates to the technical field of medical auxiliary equipment, and in particular to a detachable skull fixation device that can be used for DSA. Background Art

[0002] DSA is a digital subtraction angiography technique that is mainly used for the diagnosis and treatment planning of neurovascular diseases, including cerebrovascular, carotid, renal arteries, and arterial and venous systems of the limbs. Patients are usually asked to take or inject a special contrast agent that can make the vascular system more clearly visible.

[0003] Once the contrast enters the vascular system, doctors use X-rays to take sequential images. These images show how the contrast moves through the vascular system, as well as the structure and pathology of the blood vessels. The sequential X-ray images are compared to the initial image taken without contrast.

[0004] Through digital subtraction technology, the computer eliminates the initial image and only shows the distribution of contrast agent, which can more clearly show the vascular structure and problems. Therefore, digital subtraction angiography helps diagnose a variety of vascular diseases, including arterial stenosis, aneurysm, venous stenosis, vascular malformations, etc.

[0005] At present, all DSA angiography examination beds are flat-plate structures that cannot fix the head. Many patients undergoing cerebral angiography or treatment are unconscious due to acute cerebral infarction or elderly patients with dementia. They are extremely uncooperative during the operation, restless, and shake their heads back and forth. This is not only unsafe, but also affects the quality of the operation, prolongs the operation time and the amount of contrast agent used, and poses a great threat to the patient. For this reason, we propose a detachable head fixation device that can be used for DSA. Summary of the invention

[0006] The purpose of the present invention is to solve the problem that all DSA angiography examination beds are currently flat-plate structures and cannot fix the head. Many patients undergoing cerebral angiography or treatment are acute cerebral infarction patients with unclear consciousness or elderly patients with dementia. They are extremely uncooperative during the operation, restless, and shake their heads back and forth. This is not only unsafe, but also affects the quality of the operation, prolongs the operation time and the amount of contrast agent used, and poses a great threat to the patient. The present invention provides a detachable head fixation device that can be used for DSA.

[0007] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0008] A detachable skull fixation device that can be used for DSA comprises a skull base, an arc-shaped concave limiting groove is arranged at the center of the upper end of the skull base, triangular sponge side pads are placed on both sides of the limiting groove, a fixed helmet is fixedly connected to the rear end of the skull base, and the fixed helmet is a semicircular shell structure, a forehead pressure pad is fixedly connected to the upper end of the fixed helmet corresponding to the forehead of the patient, facial straps are fixedly connected to the front sides of the upper end of the fixed helmet, and the facial straps on both sides are fixed by Velcro after passing around the bridge of the patient's nose, a mandibular strap is fixedly connected to the front end of one side of the skull base, and the mandibular strap is fixedly connected to the other side of the skull base after passing around the mandible of the patient.

[0009] Furthermore, a chin pad is slidably sleeved on the middle portion of the chin strap, and a groove matching the chin of the patient is formed on the chin pad facing the patient side.

[0010] Furthermore, a quick-connect plug is fixedly connected to the outer end of the chin strap, and a quick-connect socket is fixedly connected to the front side of the skull base at a position symmetrical to the chin strap connection position, and the quick-connect socket matches the quick-connect plug.

[0011] Furthermore, the rear side of the head base is fixedly connected to the helmet holder, and the front side of the outer wall of the fixed helmet is against the upper end of the helmet holder, and the upper sides of both ends of the fixed helmet are fixedly connected with fixed ends, and the fixed ends are plugged and fixed to the upper end of the helmet holder.

[0012] Furthermore, an elastic connecting plate is fixedly connected to the bottom center of the fixed end, and a snap-in slot is provided at the upper ends of both sides of the helmet support corresponding to the elastic connecting plate, a snap-in through hole is provided on the bottom outer side of the snap-in slot, and a rubber sealing film is fixedly connected to the outer side of the snap-in through hole.

[0013] Furthermore, the limiting grooves are formed by fixing the two ends of the elastic knitted wide band to the skull base, and side ventilation holes are provided in the middle of both sides of the skull base.

[0014] Furthermore, the bottom of both sides of the head base are fixedly connected with base fixing belts, and the outer ends of the base fixing belts are fixedly connected by buckles after passing around the bed body, and the outer end buckles of the base fixing belts at both ends are fixedly connected to the base fixing belts by Japanese buckles.

[0015] Furthermore, the head base and the fixed helmet are made of ABS plastic, the forehead pressure pad is a silicone soft pad, and the facial strap and the chin strap are knitted elastic bands.

[0016] The beneficial effects of the present invention are as follows:

[0017] 1. The present invention provides a skull base that can be fixed on the head of the DSA angiography examination bed. After the patient lies down, the headrest is placed in the limiting groove on the skull base to fix the patient's head. The triangular sponge side pads on both sides of the limiting groove can be wedged into the gaps between the two sides of the patient's face and the limiting grooves, thereby improving the firmness of the patient's head fixation and preventing the patient's head from shaking and affecting the detection. At the same time, it can also protect the patient. Through the provided fixed helmet, the patient places the position above the forehead in the fixed helmet for fixed installation of the top of the head. Through the provided facial strap, the facial strap assists in fixing the patient's face and is fixed on the bridge of the nose. The Velcro connection structure can adjust the fixing length according to the size of the patient's head to ensure the fixing effect while ensuring the fixing comfort. Through the provided mandibular strap, the mandibular strap can fix the patient's mandible, thereby fixing the lower side of the patient's head. Through the multiple fixing structures, the stability of the patient's head fixation is guaranteed, and the comfort of the patient's head when fixed is guaranteed. All materials do not use metal materials and will not affect the angiography effect.

[0018] 2. The helmet holder provided in the present invention can facilitate the docking and fixing of the helmet, and facilitate the connection and separation of the fixed helmet. The elastic connecting plug plate and the card slot provided can ensure the structural strength of the connection between the fixed end and the helmet holder by plugging and fixing the elastic connecting plug plate in the card slot.

[0019] 3. The present invention provides a base fixing belt, which can bind and fix the skull base to the DSA angiography examination bed. The buckle is connected to the base fixing belt via a Japanese buckle, and the binding length of the base fixing belt can be adjusted, which is suitable for fixing DSA angiography examination beds of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a stereogram of the present invention;

[0021] Figure 2 is a front cross-sectional view of the present invention;

[0022] Figure 3 is a front cross-sectional view of the present invention corresponding to the rear connecting seat;

[0023] Figure 4 The present invention Figure 3 Enlarged view of point A in the middle.

[0024] Figure numerals: 1. head base; 2. limiting groove; 3. fixed helmet; 4. forehead pressure pad; 5. face strap; 6. triangular sponge side pad; 7. chin strap; 8. quick-connect plug; 9. quick-connect socket; 10. chin pad; 11. fixed end; 12. helmet support; 13. elastic connecting plate; 14. snap-in slot; 15. rubber sealing film; 16. side ventilation holes; 17. base fixing strap. DETAILED DESCRIPTION

[0025] To make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0026] See also Figure 1 - Figure 4 The present invention provides a detachable skull fixation device that can be used for DSA, including a skull base 1, an arc-shaped concave limiting groove 2 is arranged at the center of the upper end of the skull base 1, triangular sponge side pads 6 are placed on both sides of the limiting groove 2, a fixed helmet 3 is fixedly connected to the rear end of the skull base 1, and the fixed helmet 3 is a semicircular shell structure, a forehead pressure pad 4 is fixedly connected to the upper end of the fixed helmet 3 corresponding to the forehead of the patient, facial straps 5 are fixedly connected to the front sides of the upper end of the fixed helmet 3, and the facial straps 5 on both sides are fixed by Velcro after passing around the bridge of the patient's nose, a mandibular strap 7 is fixedly connected to the front end of one side of the skull base 1, and the mandibular strap 7 is fixedly connected to the other side of the skull base 1 after passing around the mandible of the patient.

[0027] In this embodiment, preferably, a chin pad 10 is slidably sleeved on the middle part of the chin strap 7, and a groove matching the patient's chin is provided on the chin pad 10 facing the patient side; through the provision of the chin pad 10, the chin pad 10 can be clamped and fixed to the patient's chin, thereby improving the firmness of the chin strap 7 in fixing the patient's chin while improving the comfort of the patient's chin.

[0028] In the present embodiment, preferably, the outer end of the chin strap 7 is fixedly connected with a quick-connect plug 8, and the front side of the skull base 1 is fixedly connected with a quick-connect socket 9 at a position symmetrical to the connection position of the chin strap 7, and the quick-connect socket 9 matches the quick-connect plug 8; by setting the quick-connect plug 8 and the quick-connect socket 9, the quick-connect connection and disassembly of the quick-connect plug 8 and the quick-connect socket 9 facilitates the fixing and loosening of the chin strap 7 and is easy to use.

[0029] In the present embodiment, preferably, the rear side of the skull base 1 is fixedly connected to the helmet holder 12, and the front side of the outer wall of the fixed helmet 3 is abutted against the upper end of the helmet holder 12, and the upper sides of both ends of the fixed helmet 3 are fixedly connected with fixed ends 11, and the fixed ends 11 are plugged and fixed to the upper end of the helmet holder 12; through the provision of the helmet holder 12, the helmet holder 12 can facilitate the docking and fixation of the fixed helmet 3, and facilitate the connection and separation of the fixed helmet 3.

[0030] In this embodiment, preferably, an elastic connecting plate 13 is fixedly connected to the bottom center of the fixed end 11, and a snap-in slot 14 is provided at the upper ends of both sides of the helmet holder 12 corresponding to the elastic connecting plate 13, a snap-in through hole is provided on the bottom outer side of the snap-in slot 14, and a rubber sealing film 15 is fixedly connected to the outer side of the snap-in through hole; through the provision of the elastic connecting plate 13 and the snap-in slot 14, the plugging and fixing of the elastic connecting plate 13 in the snap-in slot 14 can ensure the structural strength of the connection between the fixed end 11 and the helmet holder 12.

[0031] In this embodiment, preferably, the limiting groove 2 is formed by fixing the two ends of an elastic knitted wide band to the skull base 1, and side ventilation holes 16 are provided in the middle of both sides of the skull base 1; the elastic knitted wide band can fit the patient's head to support the patient's head while ensuring ventilation and air permeability of the lower side of the patient's head, reducing the patient's sweating and contamination of the device, and the side ventilation holes 16 on both sides can improve the ventilation effect of the bottom of the limiting groove 2.

[0032] In the present embodiment, preferably, the bottoms of both sides of the skull base 1 are fixedly connected with base fixing straps 17, and the outer ends of the base fixing straps 17 are fixedly connected by buckles after passing around the bed body, and the buckles at the outer ends of the base fixing straps 17 at both ends are fixedly connected to the base fixing straps 17 by Japanese buckles; through the set base fixing straps 17, the base fixing straps 17 can bind and fix the skull base 1 to the DSA angiography examination bed, and the buckles are connected to the base fixing straps 17 by Japanese buckles, and the binding length of the base fixing straps 17 can be adjusted, which is suitable for fixing DSA angiography examination beds of different sizes.

[0033] In this embodiment, preferably, the skull base 1 and the fixed helmet 3 are made of ABS plastic material, and the forehead pressure pad 4 is a silicone pad. The facial strap 5 and the chin strap 7 are both knitted elastic bands, and metal materials are not suitable. The ABS plastic material ensures the structural strength without affecting the angiographic examination. The silicone pad can be in contact and fixed with the patient's forehead to improve the patient's comfort.

[0034] The working principle and use process of the present invention are as follows: when the device is used, the skull base 1 is set, and the skull base 1 can be fixed on the head of the DSA angiography examination bed. After the patient lies down, the head is rested in the limiting groove 2 on the skull base 1 to fix the patient's head. The triangular sponge side pads 6 on both sides of the limiting groove 2 can be wedged into the gap between the two sides of the patient's face and the limiting groove 2, thereby improving the firmness of the patient's head fixation and preventing the patient's head from shaking and affecting the detection. At the same time, it can also protect the patient. Through the set fixed helmet 3, the patient places the position above the forehead in the fixed helmet 3 for fixed installation of the top of the head. Through the set facial strap 5, the facial strap 5 assists in fixing the patient's face and is fixed on the bridge of the nose. The connection structure of the Velcro can adjust the fixing length according to the size of the patient's head, ensuring the fixing effect while ensuring the fixing comfort. Through the set mandibular strap 7, the mandibular strap 7 can fix the patient's mandible, and fix the lower side of the patient's head. Through the multiple fixing structures, the stability of the patient's head fixation is guaranteed, and the comfort of the patient's head when fixed is guaranteed. All materials do not use metal materials, which will not affect the angiography effect.

[0035] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A detachable head fixation device for DSA, characterized in that: The invention comprises a skull base (1), wherein an arc-shaped recessed limiting groove (2) is arranged at the center of the upper end of the skull base (1), a fixed helmet (3) is fixedly connected to the rear end of the skull base (1), and the fixed helmet (3) is a semicircular shell structure, and a forehead pressure pad (4) is fixedly connected to the upper end of the fixed helmet (3) corresponding to the forehead of the patient, and facial straps (5) are fixedly connected to the front sides of the upper end of the fixed helmet (3), and the facial straps (5) on both sides are connected and fixed by Velcro after passing around the bridge of the patient's nose, and a mandibular strap (7) is fixedly connected to the front end of one side of the skull base (1), and the mandibular strap (7) is fixedly connected to the other side of the skull base (1) after passing around the lower jaw of the patient, and triangular sponge side pads (6) are placed on both sides of the limiting groove (2).

2. A detachable head fixation device for DSA according to claim 1, characterized in that: A chin pad (10) is slidably sleeved in the middle of the chin strap (7), and a groove matching the chin of the patient is provided on the chin pad (10) facing the patient side.

3. A detachable head fixation device for DSA according to claim 1, characterized in that: The outer end of the mandibular strap (7) is fixedly connected to a quick-connect plug (8), and the front side of the skull base (1) is fixedly connected to a quick-connect socket (9) at a position symmetrical to the connection position of the mandibular strap (7), and the quick-connect socket (9) matches the quick-connect plug (8).

4. A detachable head fixation device for DSA according to claim 1, characterized in that: The rear side of the skull base (1) is fixedly connected to the helmet support (12), and the front side of the outer wall of the fixed helmet (3) abuts against the upper end of the helmet support (12). The upper sides of both ends of the fixed helmet (3) are fixedly connected to fixed ends (11), and the fixed ends (11) are plugged and fixed to the upper end of the helmet support (12).

5. A detachable head fixation device for DSA according to claim 4, characterized in that: An elastic connection plug plate (13) is fixedly connected to the center of the bottom of the fixed end (11), and a snap-in slot (14) is provided at the upper ends of both sides of the helmet support (12) corresponding to the elastic connection plug plate (13), a snap-in through hole is provided on the outer side of the bottom of the snap-in slot (14), and a rubber sealing film (15) is fixedly connected to the outer side of the snap-in through hole.

6. A detachable head fixation device for DSA according to claim 1, characterized in that: The limiting grooves (2) are formed by fixing the two ends of the elastic knitted wide band to the skull base (1), and side ventilation holes (16) are provided in the middle of both sides of the skull base (1).

7. The detachable head fixation device for DSA according to claim 1, characterized in that: The bottoms of both sides of the head base (1) are fixedly connected to base fixing belts (17), and the outer ends of the base fixing belts (17) are fixedly connected via buckles after passing around the bed body, and the outer end buckles of the base fixing belts (17) at both ends are fixedly connected to the base fixing belts (17) via Japanese buckles.

8. The detachable head fixation device for DSA according to claim 1, characterized in that: The skull base (1) and the fixed helmet (3) are made of ABS plastic material, and the forehead pressure pad (4) is a silicone soft pad, and the facial strap (5) and the mandibular strap (7) are both knitted elastic bands.

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