CN210056140U

CN210056140U - Guide plate structure of wire saw for craniotomy

Info

Publication number: CN210056140U
Application number: CN201920058438.3U
Authority: CN
Inventors: 熊南翔; 李俊俊; 王强平; 付朋; 饶竞; 张方成; 赵洪洋; 柴松山; 黄涛; 刘伟超; 袁野; 徐豪; 王艺淏; 吴丽娜
Original assignee: Union Hospital Tongji Medical College Huazhong University of Science and Technology
Current assignee: Tongji Medical College of Huazhong University of Science and Technology; Union Hospital Tongji Medical College Huazhong University of Science and Technology
Priority date: 2019-01-05
Filing date: 2019-01-05
Publication date: 2020-02-14
Anticipated expiration: 2029-01-05

Abstract

The utility model discloses a wire saw guide plate structure for craniotomy, which comprises a guide plate, wherein two sides of the outer part of the guide plate are respectively provided with a buffer head, the outer part of the buffer head is covered with an air cushion, a placing groove is arranged in the guide plate, a snap ring is arranged in the placing groove, a clamping ring is sleeved in the snap ring, the top end of the placing groove is provided with a protective cover, the protective cover is connected with the guide plate through a sliding groove in a sliding way, the structure of the wire saw guide plate structure is scientific and reasonable, the buffer head and the air cushion are arranged, the problem that the head end of the guide plate is relatively sharp and easy to penetrate through a dura mater to cause secondary damage to a patient is solved, the snap ring and the clamping ring are arranged, the firmness of the installation of the wire saw when the guide plate is guided is improved, the wire saw position is prevented from, the problem of guide difficulty, after the guide is ended, be convenient for take off the safety cover, it is convenient to use.

Description

Guide plate structure of wire saw for craniotomy

Technical Field

The utility model relates to the technical field of auxiliary surgical instruments, in particular to a wire saw guide plate structure for craniotomy.

Background

Craniotomy, also known as craniotomy, is a type of skull surgery, which means that the skull of a patient is opened through mechanical equipment so as to perform some unconventional treatments, for patients needing craniotomy, when a bone flap is operated, a hole is usually drilled, and then a wire saw guide plate is used for leading a wire saw to pass through two bone holes among different holes, but the head end of the wire saw guide plate is relatively sharp when the existing wire saw is used, the dura mater is easy to be damaged during the guiding, the buffering protection to the dura mater is lacked, the firmness of the installation of the wire saw during the guiding of the guide plate is poor, the position of the wire saw is easy to deviate, the operation quality is affected, the operation accuracy is poor, and the wire saw is easy to rub with the skull during the guiding, so that the safety performance of the guide plate is poor during the guiding process, therefore, in order to avoid the above technical problems, it is necessary to provide a guide plate structure for a craniotomy wire saw to overcome the above-mentioned disadvantages of the prior art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a wire saw baffle structure for craniotomy to solve current wire saw and have wire saw baffle head end when using in the above-mentioned background art and more sharp-pointed, cause the damage to the dura mater easily when the guide, lack the buffer protection to the dura mater, the fastness of wire saw installation when the baffle guide is relatively poor, the skew takes place easily in the wire saw position, influence the operation quality, the operation precision is relatively poor and the wire saw rubs with the skull easily when the guide, lead to the relatively poor problem of baffle at the guide in-process security performance.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a wire saw baffle structure for craniotomy, includes the baffle, the inside standing groove of having seted up of baffle, the couple is installed on standing groove one side top, the spout has all been seted up to the baffle both sides, there is the safety cover baffle top through slider sliding connection, the buffer head is all installed to the outside both sides of baffle, the outside subsides of buffer head have the air cushion, buffer head internally mounted has the gasbag, be connected through the gas-supply pipe between gasbag and the air cushion, gas-supply pipe internally mounted has the admission valve, the lower cover mouth has been seted up to spout one side, the inside bottom welding of standing groove has the stand, the snap ring is installed on the stand top, the inside draw-in groove of having seted up in couple top, spacing.

Preferably, the clamping ring is sleeved inside the clamping ring, a fixed opening is formed in the top end of the clamping ring, a wire saw is arranged inside the clamping ring, and a compression spring is fixedly arranged at the joint of the clamping ring and the clamping ring through a spring fixing seat.

Preferably, the fixing port has a trapezoidal shape.

Preferably, one side of the guide plate is provided with scale marks.

Preferably, the outer diameter of the slider is equal to the inner diameter of the sliding groove.

Preferably, the clamping ring is in threaded connection with the upright post.

Preferably, the guide plate is arc-shaped.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model has the advantages of being scientific and reasonable in structure, convenience safe in utilization:

1. be provided with the buffering head, the air cushion, the admission valve, gas-supply pipe and gasbag, when the baffle is leading the silk saw, pierce through buffering head and bone hole, when the baffle passes the bone hole, the dura mater by air cushion and bone hole one side contacts, supplement the air cushion through the gas-supply pipe with the inside protective gas of gasbag by the admission valve simultaneously, be convenient for through the air cushion to the dura mater buffer protection, it is more sharp-pointed to have solved the baffle head end, it causes the problem of secondary damage to the patient to pierce through the dura mater easily.

2. Be provided with the snap ring, the grip ring, compression spring, draw-in groove and spacing post, hang wire saw one end in the draw-in groove department of couple, and avoid wire saw one end to take place to drop when removing by spacing post, the inside grip ring of cooperation snap ring is fixed the wire saw body simultaneously, support the grip ring by compression spring, thereby the fastness of wire saw installation when the baffle guide has been improved greatly, avoided the wire saw position to take place the skew easily, influence the operation quality, the accurate nature of going on of having guaranteed the operation.

3. Be provided with safety cover, spout, slider and lower cover mouth, separate wire saw and skull through the safety cover and keep off, solved the wire saw and rub easily with the skull when the guide, the problem of guide difficulty, after the guide is ended simultaneously, through the cooperation of slider, spout and lower cover mouth, be convenient for take off the safety cover, it is convenient to use, has guaranteed the security of baffle guide in-process.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic view of the internal structure of the buffer head of the present invention;

fig. 3 is a schematic view of the internal structure of the placement groove of the present invention;

FIG. 4 is a schematic view of the internal structure of the snap ring of the present invention;

FIG. 5 is a schematic view of the installation structure of the hook of the present invention;

reference numbers in the figures: 1. a guide plate; 2. a placement groove; 3. hooking; 4. a chute; 5. a protective cover; 6. a buffer head; 7. an air cushion; 8. an intake valve; 9. a gas delivery pipe; 10. an air bag; 11. a slider; 12. a lower cover opening; 13. a column; 14. a snap ring; 15. a clamping ring; 16. a fixed port; 17. a wire saw; 18. a compression spring; 19. a card slot; 20. a limiting column.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution, a guide plate structure of a wire saw for craniotomy, including a guide plate 1, in order to reduce friction between the guide plate 1 and the skull, ensure smoothness of the guide plate 1 during guiding process, and improve convenience of medical personnel in operation, the guide plate 1 is arc-shaped, in order to check the guiding distance of the guide plate 1 and the position of the guide plate 1 away from bone holes when pulling the guide plate 1, thereby facilitating medical workers to guide the guide plate 1, avoiding excessive guiding of the guide plate 1 and causing injury to brain tissue, and improving accuracy and safety of operation, one side of the guide plate 1 is provided with a scale mark, a placing groove 2 is arranged inside the guide plate 1, a hook 3 is arranged at the top end of one side of the placing groove 2, sliding grooves 4 are arranged at both sides of the guide plate 1, the top end of the guide plate 1 is slidably connected with a protective cover 5 through a sliding block 11, in order to improve, avoid safety cover 5 to take place not hard up when the guide, improve the fastness of the installation of safety cover 5, the outer diameter of slider 11 equals the inner diameter of spout 4, buffer head 6 is all installed to 1 outside both sides of baffle, buffer head 6 outside subsides cover has air cushion 7, buffer head 6 internally mounted has gasbag 10, be connected through gas-supply pipe 9 between gasbag 10 and the air cushion 7, gas-supply pipe 9 internally mounted has admission valve 8, cover mouth 12 under having seted up on 4 one side of spout, the inside bottom welding of standing groove 2 has stand 13, snap ring 14 is installed on stand 13 top, dismantle and maintain snap ring 14, avoid the fastness variation of snap ring 14 centre gripping in long-term use, influence the use of baffle 1, through threaded connection between snap ring 14 and stand 13, 3 top of couple are inside to have seted up draw-in groove 19, spacing post 20 is installed on 19 one side top of draw-in order.

Clamping ring 15 has been cup jointed to 14 inside of snap ring, fixed mouthful 16 has been seted up on the 15 tops of clamping ring, 15 internally mounted of clamping ring has wire saw 17, for the convenience of taking the wire saw 17 of 15 inside places of clamping ring, avoid baffle 1 when removing simultaneously, wire saw 17 is by 15 inside droings of clamping ring, improve the fastness of wire saw 17 installation, fixed mouthful 16's shape is trapezoidal, clamping ring 15 all has compression spring 18 through spring fixing base fixed mounting with 14 junctions of snap ring.

The utility model discloses a theory of operation and use flow: in the process of using the wire saw guide plate structure for craniotomy, firstly, one end of a wire saw 17 is hung at a clamping groove 19 in a hook 3, a limiting column 20 is used for preventing one end of the wire saw 17 from falling off when moving, a wire saw 17 body is arranged in a placing groove 2, the wire saw 17 enters into a clamping ring 15 through a fixing port 16, the wire saw 17 body is fixed through the clamping ring 15 matched with the inner part of a clamping ring 14, the clamping ring 15 is supported by a compression spring 18, the installation firmness of the wire saw 17 when the guide plate 1 is guided is improved, the wire saw 17 is prevented from easily deviating in position and affecting the operation quality, when guiding, the wire saw 17 is separated from a skull through a protective cover 5, the problems that the wire saw 17 is easy to rub with the skull when guiding and difficult to guide are solved, then, the wire saw penetrates through a buffering head 6 and a bone hole, when the guide plate 1 passes through the bone hole, the air cushion 7 is in contact with the dura mater on one side of the bone hole, meanwhile, the air cushion 7 is supplemented with the protective gas inside the air bag 10 through the gas conveying pipe 9 by the gas inlet valve 8, the air cushion 7 is convenient for buffer protection of the dura mater, and the problem that the head end of the guide plate 1 is relatively sharp and easily penetrates through the dura mater to cause secondary damage to a patient is solved.

Finally, after the guiding is finished, the protective cover 5 slides in the sliding groove 4 through the sliding block 11, so that the protective cover 5 can be conveniently taken down from the lower cover opening 12, the use is convenient, and then the medical staff takes down the wire saw 17 from the hook 3, and the wire saw 17 can be pulled to carry out craniotomy.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A wire saw guide plate structure for craniotomy comprises a guide plate (1), and is characterized in that: the novel buffer structure is characterized in that a placing groove (2) is formed in the guide plate (1), a hook (3) is installed at the top end of one side of the placing groove (2), sliding grooves (4) are formed in the two sides of the guide plate (1), the top end of the guide plate (1) is connected with a protective cover (5) through a sliding block (11), buffer heads (6) are installed on the two sides of the outer portion of the guide plate (1), air cushions (7) are covered on the outer portions of the buffer heads (6), air bags (10) are installed in the buffer heads (6), the air bags (10) are connected with the air cushions (7) through air pipes (9), air inlet valves (8) are installed in the air pipes (9), a lower cover opening (12) is formed in one side of the sliding grooves (4), stand columns (13) are welded at the bottom end of the inner portion of the placing groove (2), clamping rings (14) are, and a limiting column (20) is arranged at the top end of one side of the clamping groove (19).

2. A craniotomy wire saw guide plate structure according to claim 1 wherein: clamping ring (15) have been cup jointed to snap ring (14) inside, fixed mouthful (16) have been seted up on clamping ring (15) top, clamping ring (15) internally mounted has wire saw (17), clamping ring (15) and snap ring (14) junction all have compression spring (18) through spring fixing base fixed mounting.

3. A craniotomy wire saw guide plate structure according to claim 2 wherein: the fixing opening (16) is trapezoidal in shape.

4. A craniotomy wire saw guide plate structure according to claim 1 wherein: and scale marks are arranged on one side of the guide plate (1).

5. A craniotomy wire saw guide plate structure according to claim 1 wherein: the outer diameter of the sliding block (11) is equal to the inner diameter of the sliding groove (4).

6. A craniotomy wire saw guide plate structure according to claim 1 wherein: the clamping ring (14) is connected with the upright post (13) through threads.

7. A craniotomy wire saw guide plate structure according to claim 1 wherein: the guide plate (1) is arc-shaped.