Automatic fixator for thoracic surgery department

By introducing components such as bidirectional screws, servo motors and elastic straps into the automatic fixator for thoracic surgery, the problem of automatic clamping instability is solved, and stable fixation and wound healing are achieved in patients of different body types.

CN120392391APending Publication Date: 2025-08-01THE FIRST MEDICAL CENT CHINESE PLA GENERAL HOSPITAL
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Patent Information

Application Number
CN202510481256.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-17
Publication Date
2025-08-01

AI Technical Summary

Technical Problem

The existing automatic fixtures for thoracic surgery are difficult to automatically clamp in a suitable position, and have poor stability, which affects the use effect.

Method used

It adopts two-way screws, servo motors, threaded sleeves, elastic straps, hooks and wool surfaces, and automatically clamps are achieved through the servo motor driving the screw to rotate. Combining the elastic straps and buffer structures to improve stability, and adjust the pressure plate position through the hydraulic system to adapt to different body shapes and accelerate healing.

Benefits of technology

It achieves stable fixation in patients with different body types, reduces false impact force, improves safety, and promotes wound healing.

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Abstract

The invention relates to the technical field of thoracic surgery instruments, and discloses an automatic fixator for thoracic surgery, which comprises a shell, a bidirectional screw rod is movably connected in the shell, and a servo motor is mounted on the right side of the shell. According to the automatic fixator for the thoracic surgery department, the two-way screw, the threaded sleeve, the servo motor, the hair side and the hook side are arranged, the shell is placed at a proper position, the servo motor is started after being placed, the servo motor drives the two-way screw to rotate, the threaded sleeve outside the two-way screw drives the connecting plate and the limiting plate to get close to the middle, and then the shell is fixed. The position of a limiting plate is adjusted so that the device can be conveniently applied to patients of different body types, an elastic bandage is wound on the body of the patient, the device can be further limited and fixed through a hair surface and a hook surface, and the problem that the fixator cannot be conveniently and automatically clamped at the proper position is solved; the stability is poor, and the use effect is easily affected.
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Description

Technical Field

[0001] The present invention relates to the technical field of thoracic surgical instruments, in particular to an automatic fixator for thoracic surgery. Background Art

[0002] Thoracic surgery is a common surgical procedure used to treat various chest diseases and injuries. There are many types of thoracic surgery, and the surgery needs to be performed according to the patient's condition. After the patient undergoes thoracic surgery, the patient needs to use a thoracic surgery automatic fixator to bind and position the wound to accelerate healing according to the healing condition of the incision.

[0003] A common automatic fixator used in thoracic surgery still has some problems. For example, the automatic fixator used in thoracic surgery needs to be used on patients of different body shapes according to needs, but it is not convenient to automatically clamp the fixator in the appropriate position, and the stability is poor, which easily affects the use effect.

[0004] Therefore, we proposed an automatic fixator for thoracic surgery to improve the above problems. Summary of the Invention

[0005] The object of the present invention is to provide an automatic fixator for thoracic surgery to solve the problems in the above-mentioned background art that the fixator is inconvenient to automatically clamp at a suitable position and has poor stability, which easily affects the use effect.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an automatic fixator for thoracic surgery, comprising a shell, wherein a bidirectional screw is movably connected inside the shell, a servo motor is installed on the right side of the shell, and threaded sleeves are provided on the left and right sides of the outside of the bidirectional screw, and the bottom end of the threaded sleeve is fixedly connected to a connecting plate, and the side of the connecting plate near the middle is fixedly connected to a limiting plate, and the inner side wall of the limiting plate is provided with a buffer pad, and the left side of the bottom end of the shell is fixedly connected to an elastic strap, a hook surface is installed at the edge of the bottom end of the left side of the elastic strap, and a rough surface is provided at the bottom end of the left side of the elastic strap, and the right side of the bottom end of the shell is fixedly connected to a connecting strap, and the bottom end of the connecting strap is fixedly connected to a fixed block, and a reserved groove is provided at the bottom end of the fixed block.

[0007] As a further technical solution of the present invention, the output end of the servo motor is connected to the right side of the bidirectional screw through a coupling, a limiting groove is opened at the bottom end of the shell, and the connecting plate slides left and right inside the limiting groove.

[0008] As a further technical solution of the present invention, the threads on both sides of the outside of the bidirectional screw are opposite, the bidirectional screw and the threaded sleeve cooperate with each other, the elastic band passes through the fixed block through the reserved groove, and the hook surface and the hair surface cooperate with each other.

[0009] As a further technical solution of the present invention, a buffer plate is provided at the top end of the housing. Second springs are fixedly connected to the left and right sides between the buffer plate and the housing. A connecting block is fixedly connected to the middle position of the top end of the housing. A first spring is fixedly connected to the top end of the connecting block. A spring groove is installed at the middle position of the bottom end of the buffer plate.

[0010] As a further technical solution of the present invention, the spring groove is sleeved on the top end of the outside of the connecting block, and the first spring is arranged inside the spring groove.

[0011] As a further technical solution of the present invention, a mounting plate is fixedly connected to the left side of the front end of the housing. A hydraulic cylinder is installed on the left side of the mounting plate, and a connecting frame is installed on the right side of the hydraulic cylinder.

[0012] As a further technical solution of the present invention, a pressing plate is provided at the bottom end of the connecting frame. Third springs are arranged at the four corners between the connecting frame and the pressing plate. An airbag is arranged between the connecting frame and the pressing plate. An inflation tube is fixedly connected to the top end of the airbag.

[0013] As a further technical solution of the present invention, a valve is arranged on the outside of the inflation tube, and a damper is arranged inside the third spring.

[0014] Compared with the prior art, the beneficial effects of the present invention are: The automatic fixator for thoracic surgery not only realizes convenient fixation on bodies of different body types, realizes convenient protection for patients, but also realizes convenient adjustment of the position of the pressing plate;

[0015] (1) By providing a bidirectional screw, a threaded sleeve, a servo motor, a connecting belt, a fixing block, a rough surface and a hook surface, the housing is placed at a suitable position. After placing, the servo motor is started. The servo motor drives the bidirectional screw to rotate, so that the threaded sleeve outside the bidirectional screw drives the connecting plate and the limiting plate to move closer to the middle, thereby facilitating the fixation of the device at a suitable position. Adjusting the position of the limiting plate facilitates the device to be suitable for patients of different body types. The elastic binding belt is wound around the patient's body, and the rough surface and the hook surface can be used to further limit and fix the device;

[0016] (2) By providing a buffer plate, a spring groove, a first spring, a connecting block and a second spring, when an outsider or a patient accidentally touches the buffer plate, the first spring and the second spring between the buffer plate and the housing can buffer the buffer plate, reduce the impact force, prevent the pressure applied to the wound from being too large and affecting the recovery of the wound, thereby improving the safety performance. The spring groove and the connecting block can limit the first spring;

[0017] (3) By providing a hydraulic cylinder, a connecting frame, an inflatable tube, an airbag, a third spring and a pressing plate, when it is necessary to adjust the position of the pressing plate, the hydraulic cylinder is started. The hydraulic cylinder drives the pressing plate to move left and right through the connecting frame, and moves the pressing plate to a suitable position. After the movement, the air pump and the inflatable tube are used to inflate the inside of the airbag. When inflating the airbag, it can make the medical pad at the bottom of the third spring close to the wound to form a pressure between the wound, which is convenient for the healing of the wound. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front view sectional structure schematic diagram of the present invention;

[0019] Figure 2 It is a front view structure schematic diagram of the present invention;

[0020] Figure 3 It is a front view sectional enlarged structure schematic diagram of the pressing plate of the present invention;

[0021] Figure 4 It is a side view enlarged structure schematic diagram of the fixing block of the present invention;

[0022] Figure 5 It is a top view structure schematic diagram of the buffer plate of the present invention;

[0023] Figure 6 For the present invention Figure 1 The enlarged sectional structure schematic diagram at position A in

[0024] In the figure: 1, housing; 2, bidirectional screw; 3, threaded sleeve; 4, buffer plate; 5, spring groove; 6, first spring; 7, connecting block; 8, second spring; 9, servo motor; 10, connecting belt; 11, fixing block; 12, connecting plate; 13, elastic binding band; 14, rough surface; 15, hook surface; 16, hydraulic cylinder; 17, mounting plate; 18, connecting frame; 19, inflatable tube; 20, airbag; 21, third spring; 22, buffer pad; 23, limiting plate; 24, pressing plate; 25, reserved groove; 26, limiting sliding groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] Please refer to Figures 1-6, an embodiment provided by the present invention; an automatic fixator for thoracic surgery, comprising a housing 1, a bidirectional screw 2 is movably connected inside the housing 1, a servo motor 9 is installed on the right side of the housing 1, and screw sleeves 3 are arranged on the left and right sides outside the bidirectional screw 2. A connecting plate 12 is fixedly connected to the bottom end of the screw sleeve 3. A limiting plate 23 is fixedly connected to the side of the connecting plate 12 close to the middle. A buffer pad 22 is arranged on the inner side wall of the limiting plate 23. An elastic strap 13 is fixedly connected to the left side of the bottom end of the housing 1. A hook surface 15 is installed at the edge of the bottom end of the left side of the elastic strap 13. A loop surface 14 is arranged at the bottom end of the left side of the elastic strap 13. A connecting belt 10 is fixedly connected to the right side of the bottom end of the housing 1. A fixing block 11 is fixedly connected to the bottom end of the connecting belt 10. A reserved groove 25 is opened at the bottom end inside the fixing block 11;

[0027] The output end of the servo motor 9 is connected to the right side of the bidirectional screw 2 through a coupling. A limiting chute 26 is opened at the bottom end inside the housing 1. The connecting plate 12 slides left and right inside the limiting chute 26. The threads on the two sides of the bidirectional screw 2 are opposite. The bidirectional screw 2 and the screw sleeve 3 cooperate with each other. The elastic strap 13 passes through the fixing block 11 through the reserved groove 25. The hook surface 15 and the loop surface 14 cooperate with each other;

[0028] Specifically, as Figure 1 , Figure 2 , Figure 4 and Figure 6 shown, place the housing 1 in a suitable position, start the servo motor 9 after placing it well. The servo motor 9 drives the bidirectional screw 2 to rotate, so that the screw sleeves 3 outside the bidirectional screw 2 drive the connecting plate 12 and the limiting plate 23 to approach the middle, thereby facilitating the fixing of the device in a suitable position. Adjusting the position of the limiting plate 23 facilitates the device to be suitable for patients of different body types. The elastic strap 13 is wound around the patient's body, and the device can be further limited and fixed through the loop surface 14 and the hook surface 15.

[0029] A buffer plate 4 is arranged at the top end of the housing 1. Second springs 8 are fixedly connected to the left and right sides between the buffer plate 4 and the housing 1. A connecting block 7 is fixedly connected to the middle position at the top end of the housing 1. A first spring 6 is fixedly connected to the top end of the connecting block 7. A spring groove 5 is installed at the middle position of the bottom end of the buffer plate 4. The spring groove 5 is sleeved on the top end outside the connecting block 7. The first spring 6 is arranged inside the spring groove 5;

[0030] Specifically, as Figure 1 and Figure 2 shown, when an outsider or a patient accidentally touches the buffer plate 4, the first spring 6 and the second spring 8 between the buffer plate 4 and the housing 1 can buffer the buffer plate 4, reduce the impact force, prevent the pressure applied to the wound from being too large and affecting the recovery of the wound, thereby improving the safety performance. The spring groove 5 and the connecting block 7 can limit the first spring 6.

[0031] On the left side of the front end of the housing 1, a mounting plate 17 is fixedly connected. A hydraulic cylinder 16 is installed on the left side of the mounting plate 17. A connecting frame 18 is installed on the right side of the hydraulic cylinder 16. A pressing plate 24 is arranged at the bottom end of the connecting frame 18. Four corners between the connecting frame 18 and the pressing plate 24 are provided with third springs 21. An airbag 20 is arranged between the connecting frame 18 and the pressing plate 24. The top end of the airbag 20 is fixedly connected with an inflation tube 19. A valve is arranged outside the inflation tube 19. A damper is arranged inside the third spring 21;

[0032] Specifically, as Figure 2 , Figure 3 and Figure 5 shown, when it is necessary to adjust the position of the pressing plate 24, the hydraulic cylinder 16 is started. The hydraulic cylinder 16 drives the pressing plate 24 to move left and right through the connecting frame 18, and moves the pressing plate 24 to a suitable position. After moving, the airbag 20 is inflated through an air pump and the inflation tube 19. When the airbag 20 is inflated, a pressure can be formed between the medical pad at the bottom end of the third spring 21 and the wound close to the wound, which is convenient for the healing of the wound.

[0033] Working principle: When the present invention is in use, the housing 1 is placed at a suitable position. After placing, the servo motor 9 is started. The servo motor 9 drives the bidirectional screw 2 to rotate, so that the threaded sleeve 3 outside the bidirectional screw 2 drives the connecting plate 12 and the limiting plate 23 to move closer to the middle, so as to conveniently fix the device at a suitable position. Adjusting the position of the limiting plate 23 facilitates the device to be suitable for patients of different body types. The elastic strap 13 is wound around the patient's body, and the device can be further limited and fixed through the fuzzy surface 14 and the hook surface 15. When it is necessary to adjust the position of the pressing plate 24, the hydraulic cylinder 16 is started. The hydraulic cylinder 16 drives the pressing plate 24 to move left and right through the connecting frame 18, and moves the pressing plate 24 to a suitable position. After moving, the airbag 20 is inflated through an air pump and the inflation tube 19. When the airbag 20 is inflated, a pressure can be formed between the medical pad at the bottom end of the third spring 21 and the wound close to the wound, which is convenient for the healing of the wound. When an outsider or the patient accidentally touches the buffer plate 4, the first spring 6 and the second spring 8 between the buffer plate 4 and the housing 1 can buffer the buffer plate, reduce the impact force, and prevent the pressure applied to the wound from being too large and affecting the recovery of the wound, so as to improve the safety performance. The spring groove 5 and the connecting block 7 can limit the first spring 6. A controller is arranged on the left side of the housing 1. The controller is electrically connected to the servo motor 9 and the air pump. Since this technology is an existing technology, it will not be elaborated here.

[0034] It is obvious to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claims concerned.

Claims

1. An automatic fixator for thoracic surgery, comprising a housing (1), characterized in that: Inside the housing (1), a bidirectional screw (2) is movably connected. A servo motor (9) is installed on the right side of the housing (1). On the left and right sides of the outside of the bidirectional screw (2), there are thread sleeves (3). The bottom end of the thread sleeve (3) is fixedly connected to a connecting plate (12). On the side of the connecting plate (12) close to the middle, a limiting plate (23) is fixedly connected. On the inner side wall of the limiting plate (23), a buffer pad (22) is provided. On the left side of the bottom end of the housing (1), an elastic strap (13) is fixedly connected. At the edge of the bottom end of the left side of the elastic strap (13), a hook surface (15) is installed. On the bottom end of the left side of the elastic strap (13), a loop surface (14) is provided. On the right side of the bottom end of the housing (1), a connecting strap (10) is fixedly connected. The bottom end of the connecting strap (10) is fixedly connected to a fixing block (11). At the bottom end inside the fixing block (11), a reserved groove (25) is opened.

2. The automatic fixator for thoracic surgery according to claim 1, characterized in that: The output end of the servo motor (9) is connected to the right side of the bidirectional screw (2) through a coupling. At the bottom end inside the housing (1), a limiting sliding groove (26) is opened. The connecting plate (12) slides left and right inside the limiting sliding groove (26).

3. The automatic fixator for thoracic surgery according to claim 1, wherein: The threads on the two sides of the outside of the bidirectional screw (2) are opposite. The bidirectional screw (2) and the thread sleeve (3) cooperate with each other. The elastic strap (13) passes through the fixing block (11) through the reserved groove (25). The hook surface (15) and the loop surface (14) cooperate with each other.

4. The automatic fixator for thoracic surgery according to claim 1, characterized in that: At the top end of the housing (1), a buffer plate (4) is provided. On the left and right sides between the buffer plate (4) and the housing (1), second springs (8) are fixedly connected. At the middle position of the top end of the housing (1), a connecting block (7) is fixedly connected. At the top end of the connecting block (7), a first spring (6) is fixedly connected. At the middle position of the bottom end of the buffer plate (4), a spring groove (5) is installed.

5. The automatic fixator for thoracic surgery according to claim 4, characterized in that: The spring groove (5) is sleeved on the top end outside the connecting block (7). The first spring (6) is arranged inside the spring groove (5).

6. The automatic fixator for thoracic surgery according to claim 1, wherein: On the left side of the front end of the housing (1), a mounting plate (17) is fixedly connected. On the left side of the mounting plate (17), a hydraulic cylinder (16) is installed. On the right side of the hydraulic cylinder (16), a connecting frame (18) is installed.

7. The automatic fixator for thoracic surgery according to claim 6, characterized in that: At the bottom end of the connecting frame (18), a pressing plate (24) is provided. At the four corners between the connecting frame (18) and the pressing plate (24), third springs (21) are provided. Between the connecting frame (18) and the pressing plate (24), an airbag (20) is provided. At the top end of the airbag (20), an inflation tube (19) is fixedly connected.

8. The automatic fixator for thoracic surgery according to claim 7, wherein: A valve is provided on the outside of the inflation tube (19). A damper is provided inside the third spring (21).