CN102715925A - Lower opener for endoscope - Google Patents

Abstract

The invention relates to the field of medical instruments, and discloses a spreader under an endoscope. In the present invention, the two spreader heads are in a symmetrical shape, connected together, cooperating with each other, and can be opened and closed. When the two are combined, they form a gourd shape with a rounded blunt tip. During the operation, the rounded blunt tip is used Puncture the basement membrane, then fix the edge of the breach in the middle depression of the gourd-shaped spreader head, and finally spread the spreader head, open the breach, and expand the opening to meet the surgical requirements, which can be achieved with one instrument The function of piercing and propagating is simple in structural design, the operation is more convenient, and the operation effect is safer and more effective. A tooth plate with a multi-tooth lock that cooperates with each other is arranged on the inner side of the handle. By fixing the position of the handle, the width of the opening and closing of the spreader head is controlled, which is convenient for controlling the size of the opening of the spreader and making the operation more convenient. Made of metal material, it is convenient for high-temperature disinfection and sterilization, and it is not easy to be damaged, and can be reused to reduce the cost of surgery.

Description

endoscopic spreader

technical field

The invention relates to the field of medical instruments, in particular to an endoscopic spreader.

Background technique

In recent years, with the rapid development of neuroimaging, neuroendoscopic manufacturing technology, microsurgical instruments, and stereotaxic neuronavigation systems, the surgical method of neuroendoscope-assisted third ventriculostomy has become increasingly mature, and the indications have been continuously expanded. It plays an increasingly important role in the field of surgical treatment of non-communicating hydrocephalus. Third ventriculostomy is mainly suitable for non-communicating hydrocephalus, and it can also be used for patients with non-communicating hydrocephalus with shunt failure or shunt infection and adhesion. For patients with shunt failure due to multiple shunt blockages That said, third ventriculostomy is undoubtedly a good alternative therapy.

In order to improve the safety and effectiveness of the operation, in addition to correctly selecting the appropriate patients with hydrocephalus and mastering the surgical methods and operating skills, the use of high-quality and suitable surgical instruments is also the key to the success of the third ventriculostomy. The key step in the whole operation is fistula, that is, to create a fistula with a diameter of 5mm to 6mm on the basement membrane of the third ventricle with the help of neuroendoscope and other surgical instruments. Generally speaking, the complication rate of third ventriculostomy is lower than that of shunt, about 5% to 7%, mainly including intraoperative venous bleeding, basilar artery rupture, postoperative intracranial hemorrhage, infection, transient loss of consciousness or hypothalamus Low function, mostly transient. One of the most dangerous complications is the rupture of the basilar artery and its branches causing massive bleeding. Sharp ostomy techniques such as probes are easy and effective, but improper operation can easily cause damage to blood vessels and brain tissue. In order to avoid damage to the basilar artery during the operation, perforated ostomy is usually performed with a balloon dilatation catheter in the prior art.

However, the inventors of the present invention have found that using a balloon dilation catheter for perforation fistula is often difficult to break through the basement membrane because the texture of the catheter is soft and the head end is blunt. At the same time, due to the special material of the balloon, the price is relatively expensive and it is easy to damage , the reuse rate is very low, which brings great inconvenience to clinical work, especially for patients with very tough or elastic third ventricle basement membrane, repeated operations also increase the risk of surgery. Therefore need to seek a kind of new ostomy instrument, while ensuring the ostomy effect, improve the safety and easy operability of operation.

Contents of the invention

The object of the present invention is to provide an endoscopic spreader, which can realize the functions of puncturing and spreading with one surgical instrument, has simple structure design, simpler and more convenient operation, and safer and more effective operation effect.

In order to solve the above technical problems, the embodiment of the present invention discloses an endoscopic spreader, comprising: a first handle (1), a second handle (2), a bolt (4), a pin (16 ), hollow tube (6), push rod (7), first spreader head (8), second spreader head (9) and connecting plate (11);

The push rod (7) is placed in the central hole of the hollow tube (6);

The first spreader head (8) and the second spreader head (9) are symmetrical shapes, and when the two are combined, they form a gourd shape with a round blunt tip (15), and the middle part of the gourd shape (13 ) thin constriction, the front part (14) and the back part (12) are enlarged, and the diameter of the back part (12) is larger than that of the front part (14);

The first hand handle (1) and the second hand handle (2) are connected by bolts (4);

The rear part of the first spreader head (8) and the rear part of the second spreader head (9) are pinned to the connecting plate (11) through the pin (16), and the connecting plate (11) is also connected through the bolt (4) It is connected with one end of the push rod (7), and the other end of the push rod (7) is connected with the first handle (1);

One end of the hollow tube (6) is connected to the second handle (2), and the other end is connected to the rear of the first spreader head (8) and the rear of the second spreader head (9) through a pin (16). Rear pin connection.

Compared with the prior art, the embodiment of the present invention has the main difference and its effects in that:

The two spreader heads are symmetrical in shape. They are connected together and cooperate with each other. They can be opened and closed. When the two are combined, they form a gourd shape with a blunt tip. During the operation, the blunt tip is used to puncture the basement membrane first. , and then fix the edge of the breach in the middle depression of the gourd-shaped spreader head, and finally spread the spreader head, open the breach, expand the opening to a size that meets the surgical requirements, and use a single surgical instrument to achieve poking The function of breaking and stretching, the structure design is simple, the operation operation is simpler and more convenient, and the operation effect is safer and more effective.

Furthermore, a tooth plate with a multi-tooth lock that cooperates with each other is arranged on the inner side of the handle. By fixing the position of the handle, the width of the opening and closing of the spreader head is controlled, which facilitates the control of the size of the spreader opening and makes the operation more convenient. Accurate and convenient.

Further, a handle ring is provided at the end of the handle, which is more convenient for holding and operating.

Furthermore, the rotating wheel is used to rotate the head of the spreader as a whole, which facilitates more effective exposure of the surgical field of view and makes the surgical operation easier.

Furthermore, the design of the slot allows enough displacement space for the parallelogram, so as to better control the size of the brace opening.

Furthermore, it is made of metal material, which is convenient for high-temperature disinfection and sterilization, is not easy to be damaged, and can be reused to reduce operation costs.

Description of drawings

Fig. 1 is a schematic structural view of an endoscopic spreader in the first embodiment of the present invention;

Fig. 2 is a schematic structural view of a spreader head of an endoscopic spreader in the first embodiment of the present invention.

Detailed ways

In the following description, many technical details are proposed in order to enable readers to better understand the application. However, those skilled in the art can understand that without these technical details and various changes and modifications based on the following implementation modes, the technical solution claimed in each claim of the present application can be realized.

In order to make the purpose, technical solution and advantages of the present invention clearer, the following will further describe the implementation of the present invention in detail in conjunction with the accompanying drawings.

The first embodiment of the present invention relates to an endoscopic spreader. FIG. 1 is a schematic structural view of the endoscopic spreader, and FIG. 2 is an enlarged view of the spreader head of the spreader shown in FIG. 1 .

Specifically, as shown in Figures 1 and 2, the endoscopic spreader includes: a first handle 1, a second handle 2, a bolt 4, a pin 16, a hollow tube 6, and a push rod 7 , The first spreader head 8, the second spreader head 9 and the connecting plate 11.

The push rod 7 is placed in the central hole of the hollow tube 6 .

The first spreader head 8 and the second spreader head 9 are symmetrical shapes, and when the two are combined, they form a gourd shape with a round blunt tip 15. The middle part 13 of the gourd shape is thin, and the front part 14 and The rear portion 12 is enlarged, and the diameter of the rear portion 12 is larger than that of the front portion 14 .

The first spreader head 8 and the second spreader head 9 are connected together, cooperate with each other, and can be opened and closed. When they are combined, they form a gourd shape with a round blunt tip, as shown in FIG. 2 .

Specifically, when the two are combined to form a gourd shape with a blunt tip,

The blunt tip 15 has a length of 1 mm to 2 mm and a diameter of 0.1 mm to 0.3 mm.

The front portion 14 has a length of 2mm to 3mm and a diameter of 0.4mm to 0.6mm.

The diameter of the middle part 13 is 0.2 mm to 0.4 mm.

The rear portion 12 has a length of 5 mm to 8 mm and a diameter of 0.8 mm to 1.5 mm.

When the spreader is stretched, the shape is as shown in Figure 1: when the head of the spreader is in the shape of a gourd, the maximum diameter of the spreader can reach 5mm to 8mm.

The first hand handle 1 and the second hand handle 2 are connected by bolts 4 .

In addition, it also includes: tooth plates 10, tooth plates 10 are provided on the opposite sides of the first handle 1 and the second handle 2, and the tooth plates 10 are provided with multi-teeth lockers that cooperate with each other.

A tooth plate with a multi-tooth lock that cooperates with each other is set on the inner side of the handle. By fixing the position of the handle, the width of the opening and closing of the spreader head is controlled, which is convenient for controlling the size of the spreader opening, making the operation more accurate and convenient. .

Of course, this is only a preferred embodiment of the present invention, and in some other embodiments of the present invention, the tooth plate 10 may also be absent.

In addition, it also includes: a hand ring 3, and a hand ring 3 is connected to the ends of the first handle 1 and the second handle 2 respectively.

The end of the handle is provided with a hand-held loop, which is more convenient for hand-holding and operation.

Likewise, this is only a preferred embodiment of the present invention, and in some other embodiments of the present invention, the hand ring 3 may also be absent.

In addition, it also includes: a rotating wheel 5, which is fixed on the first handle 1, and the rotating wheel is used to rotate the head of the spreader as a whole, so as to expose the surgical field of view more effectively and make the surgical operation easier.

The rear portion of the first spreader head 8 and the rear portion of the second spreader head 9 are pinned to the connecting plate 11 through the pin 16, and the connecting plate 11 is also connected to one end of the push rod 7 through the bolt 4, specifically, The connecting plate 11 is connected into the shape of a parallelogram by bolts 4, and the rear portion of the first spreader head 8 and the rear portion of the second spreader head 9 are pinned to a corner of the parallelogram through a pin 16, and the corner The opposite corner is connected with one end of the push rod 7 by the bolt 4. The other end of push bar 7 is connected with running wheel 5.

Likewise, this is only a preferred embodiment of the present invention, and in some other embodiments of the present invention, the connecting plate 11 may not be connected into a parallelogram shape, and the runner 5 may also be absent. In the absence of the wheel 5 , the other end of the push rod 7 is directly connected to the first handle 1 .

One end of the hollow tube 6 is connected to the second handle 2, and the other end is pinned to the rear of the first spreader head 8 and the rear of the second spreader head 9 through a pin 16.

Specifically, the length of the hollow tube 6 is 10 cm to 50 cm, and the inner wall diameter is 0.8 mm to 1.5 mm.

One end of the hollow tube 6 pinned to the rear of the first spreader head 8 and the rear of the second spreader head 9 is provided with a slot. The slotted design makes the parallelogram have enough displacement space, so as to better control the size of the brace opening.

Likewise, this is only a preferred embodiment of the present invention, and in some other embodiments of the present invention, the front end of the hollow tube 6 may not have a slot.

The endoscope spreader is made of metal material. Made of metal material, it is convenient for high-temperature disinfection and sterilization, and it is not easy to be damaged, and can be reused to reduce the cost of surgery.

The two spreader heads of the endoscopic spreader are symmetrical in shape, connected together and matched with each other, and can be opened and closed. When the two are combined, they form a gourd shape with a round blunt tip. When the spreader head of the spreader is stretched, the maximum spread diameter can reach 5mm to 8mm, which can meet the requirements of actual surgery.

During the operation, the blunt tip is used to puncture the basement membrane first. The blunt tip is convenient for breaking through the basement membrane safely and effectively, especially for patients with very tough or elastic basement membrane of the third ventricle. Then fix the edge of the breach in the middle depression of the gourd-shaped spreader head, and finally stretch the spreader head, open the breach, and expand the brace opening to meet the surgical requirements. The gourd-shaped design makes the breach easy to be opened. The breach can be safely and effectively propped open according to the requirements of the actual operation.

The functions of piercing and opening can be realized by using one surgical instrument, the operation is simpler and more convenient, and the operation effect is safer and more effective.

Although the present invention has been illustrated and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the present invention. The spirit and scope of the invention.

Claims (10)

1. dilator under the endoscope; It is characterized in that, comprising: first hand holding handle (1), second hand holding handle (2), bolt (4), pin (16), hollow pipe (6), catch bar (7), the first dilator head (8), the second dilator head (9) and connecting plate (11);

Catch bar (7) places the centre bore of hollow pipe (6);

The first dilator head (8) and the second dilator head (9) are symmetric shape; Both have the calabash shape at the blunt tip of circle (15) to fashionable formation; The mid portion of this calabash shape (13) is hung carefully; Expand anterior (14) and rear portion (12), and rear portion (12) diameter is greater than anterior (14) diameter;

First hand holding handle (1) links to each other through bolt (4) with second hand holding handle (2);

The rear portion of the rear portion of the first dilator head (8) and the second dilator head (9) is through pin (16) and connecting plate (11) pin joint; Connecting plate (11) also is connected with an end of catch bar (7) through bolt (4), and the other end of catch bar (7) is connected with first hand holding handle (1);

One end of hollow pipe (6) is connected with second hand holding handle (2), and the other end is through pin (16) and the rear portion of the first dilator head (8) and the rear portion pin joint of the second dilator head (9).

2. dilator under the endoscope according to claim 1; It is characterized in that; Said connecting plate (11) is the shape that connects into parallelogram through bolt (4); An angle pin joint of the first dilator head (8) and the second dilator head (9) and this parallelogram, the diagonal angle at this angle is connected with an end of catch bar (7) through bolt (4).

3. dilator under the endoscope according to claim 2 is characterized in that, also comprises: tooth plate (10);

Couple positioned opposite at first hand holding handle (1) and second hand holding handle (2) has tooth plate (10), and this tooth plate (10) is provided with the multiple tooth snap close that cooperatively interacts.

4. dilator under the endoscope according to claim 3 is characterized in that, also comprises: hand-held ring (3);

End at first hand holding handle (1) and second hand holding handle (2) is connected a hand-held ring (3) respectively.

5. dilator under the endoscope according to claim 4 is characterized in that, also comprises: runner (5);

Runner (5) is fixed on first hand holding handle (1), and an end of catch bar (7) is connected with runner (5).

6. dilator under the endoscope according to claim 5 is characterized in that, the length of this hollow pipe (6) is 10cm to 50cm, and inner diameter is 0.8mm to 1.5mm.

7. dilator under the endoscope according to claim 6 is characterized in that, the length at the blunt tip of the circle of calabash shape (15) is 1mm to 2mm, and diameter is 0.1mm to 0.3mm;

The length of anterior (14) is 2mm to 3mm, and diameter is 0.4mm to 0.6mm;

The diameter of mid portion (13) is 0.2mm to 0.4mm;

The length at rear portion (12) is 5mm to 8mm, and diameter is 0.8mm to 1.5mm.

8. dilator under the endoscope according to claim 7 is characterized in that, when this dilator head calabash shape struts, struts the diameter maximum and can reach 5mm to 8mm.

9. dilator under the endoscope according to claim 8 is characterized in that, an end of the rear portion of the hollow pipe (6) and the first dilator head (8) and the rear portion pin joint of the second dilator head (9) is provided with fluting.

10. according to dilator under each described endoscope in the claim 1 to 9, it is characterized in that this dilator is processed by metal material.

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