CN106963448A - A kind of orthopaedics osteotomy instrument and its application method - Google Patents

Abstract

The invention provides an orthopedic osteotomy tool and a method for using the device. The device is a pincer-shaped structure in which the middle parts of two half-pincer structures are hinged to each other, and the two half-pincer structures are detachable structures. The jaws of the structure are arc-shaped jaws arranged opposite to each other. When the two jaws are clamped together, the middle part forms a clamping space, and the side wall on the rear side of each jaw is provided with at least two cut-offs connecting the outer side of the jaws and the clamping space. The distance between at least two osteotomy holes on the same jaw is the same as the length of the desired osteotomy, and a soft tissue baffle is fixedly arranged on the outer wall of the jaw at the front end of the osteotomy hole. In order to solve the problems of long time-consuming, low accuracy and great potential safety hazards in existing osteotomy methods. The invention belongs to the field of orthopedic treatment.

Description

Orthopedic osteotomy tool and method of use thereof

technical field

The invention relates to an osteotomy tool and a method, belonging to the field of orthopedic treatment.

Background technique

In the existing orthopedic treatment, osteotomy is a relatively conventional treatment method, such as fibular osteotomy, etc., but the existing osteotomy methods are relatively backward, and the osteotomy operation takes a long time and has low accuracy. It is easy to injure the flesh and nerves around the bone, and there is a great potential safety hazard.

Contents of the invention

The purpose of the present invention is to provide an orthopedic osteotomy tool and its use method, so as to solve the problems of long time-consuming, low precision and relatively large potential safety hazards in existing osteotomy methods.

In order to solve the above problems, an orthopedic osteotomy tool is provided. The device is a pincer-shaped structure in which the middle parts of two half-pincer structures are hinged to each other, and the two half-pincer structures are detachable structures. The pliers mouths are arc-shaped pliers mouths set opposite to each other. When the two pliers mouths are clamped together, the middle part forms a clamping space. On the side wall at the rear side of each pliers mouth, there are at least two osteotomies connecting the outside of the pliers mouth and the clamping space. The distance between at least two osteotomy holes on the same jaw is the same as the length of the desired osteotomy, and a soft tissue baffle is fixedly arranged on the outer wall of the jaw at the front end of the osteotomy hole.

In the aforementioned osteotomy tool, each jaw is provided with two osteotomy holes, and the osteotomy holes on the two jaws are uniformly set in one-to-one correspondence.

In the aforementioned osteotomy tool, the osteotomy hole is a strip hole, and the osteotomy holes on each jaw are arranged parallel to each other. Preferably, the strip hole of the osteotomy hole is also provided with a drill hole with a diameter greater than the width of the strip hole , and each osteotomy hole is provided with a plurality of drilling holes distributed along its length direction;

In the aforementioned osteotomy tool, the osteotomy hole is a drill hole, and each jaw is provided with two rows of osteotomy holes parallel to each other, and the distance between the two rows of osteotomy holes is the same as the length of the desired osteotomy;

Among the aforementioned osteotomy tools, one of the half-pliers structures is fixedly provided with a hinge shaft, and the other half-pliers structure is provided with a hinge shaft connecting groove corresponding to the hinge shaft. Insert it into the connecting groove of the hinge shaft so that the two halves of the forceps structure can be combined into a forceps body structure and can be accurately and stably fixed on the site to be cut;

In the aforementioned osteotomy tool, the handle of one half-pliers structure is hingedly provided with a limiting rod, and the handle of the other half-pliers structure is provided with a through hole, and one end of the limiting rod passes through the through hole and extends to the other half. On the outer side of the clamp structure handle, the limit rod is provided with external threads, and the limit rod outside the other half clamp structure handle is provided with an adjusting nut, which can be adjusted by turning the adjustment nut. distance;

In the aforementioned osteotomy tool, the outer walls of the jaws and the soft tissue baffle are smooth curved surfaces;

In the aforementioned osteotomy tool, the outer wall of the soft tissue baffle has a concave structure, which can reduce the spread of muscles and nerves, and avoid damage caused by compression of flesh and nerves;

In the aforementioned osteotomy tool, the soft tissue baffle is set inclined from the front end to the rear end and outside of the jaws, effectively isolating flesh and nerves, and avoiding damage to blood vessels, muscles and nerves by the osteotomy tool during osteotomy.

The method of osteotomy using the above device is as follows:

Step 1. Separate the two halves of the forceps structure, insert the jaws of the two halves of the forceps structure into the osteotomy site from the osteotomy edge, set the jaws opposite and cover the outside of the segment to be cut, During the insertion process, the half-clamp structure separates the flesh and nerves on the outside of the two jaws and the partition without damaging the flesh and nerves. The osteotomy segment is separated from the fleshy parts such as muscles, blood vessels, and nerves, and the outer walls of the jaws and soft tissue baffles are preferably smooth and curved to avoid damage to fleshy and nerves;

Step 2. Hinge and combine the two halves of the forceps into one body, adjust the distance between the two jaws, and occlude the part to be cut into the forceps;

Step 3. At both ends of the segment to be cut, through the osteotomy hole opened on the jaws, use an oscillating saw or a drill to cut off the bone between the two jaws, or cut off most of the bone and break it off with pliers broken bone

Step 4. Disassemble the two halves of the forceps and take them out from the osteotomy site. Use tools to break off the through holes at both ends of the osteotomy segment, and then take out the osteotomy segment.

Compared with the prior art, the present invention can quickly separate the segment to be cut from the surrounding flesh and nerves by using the combined forceps structure, and when using an oscillating saw or a drill to cut the bone, after penetrating the bone body, the jaws of the forceps The front end can play a role in blocking the pendulum saw or drill bit, effectively avoiding injury to other parts such as flesh and nerves; during osteotomy, after the forceps body clamps the segment to be cut, it is completed together, the soft tissue is retracted, and the osteotomy area The precise fixation and osteotomy line planning can truly realize the minimally invasive osteotomy with small incisions, and the osteotomy holes are carried out along the set two rows of osteotomy holes, which ensures the accuracy of osteotomy; the manufacture of the device It is very convenient and easy to use, can greatly shorten the osteotomy time, reduce the risk of damage to blood vessels and nerves, and reduce some surgical assistants. The present invention is extremely suitable for fibula osteotomy.

Description of drawings

Fig. 1 is the structural representation of the present invention in embodiment 1;

Fig. 2 is a side view of the osteotomy hole part in Fig. 1 (not considering the baffle part);

Fig. 3 is a schematic structural view of a single half-clamp structure in Example 1;

Fig. 4 is a schematic structural view of the other half of the clamp structure opposite to Fig. 3;

Fig. 5 is a structural representation of the present invention in embodiment 2;

Fig. 6 is a side view of the osteotomy hole part in Fig. 5 (not considering the baffle part);

Fig. 7 is a schematic structural view of a single half-clamp structure in Example 2;

Fig. 8 is a structural schematic diagram of the other half of the clamp structure opposite to Fig. 7;

Fig. 9 is a schematic structural view of the present invention in embodiment 3;

Fig. 10 is a side view of the osteotomy hole part in Fig. 9 (not considering the baffle part);

Fig. 11 is a schematic structural view of a single half-clamp structure in Example 3;

FIG. 12 is a structural schematic diagram of another half of the clamp structure opposite to FIG. 11 .

detailed description

In order to make the purpose of the present invention, technical solutions and advantages clearer, the present invention will be described in further detail below,

Example 1:

Referring to Fig. 1 to Fig. 4, the present embodiment provides an orthopedic osteotomy tool, the device is a pincer-shaped structure in which the middle parts of two half-pincer structures 1 are hinged to each other, and one of the half-pincer structures 1 is fixedly provided with a hinge shaft 5 , the other half clamp structure 1 is provided with a hinge shaft connection groove 6 corresponding to the hinge shaft 5, the two half clamp structures 1 can be used alone, and the hinge shaft 5 can also be slid into the hinge shaft connection groove 6 so that the two halves The pliers structure 1 is combined into a pliers body structure. The jaws 2 of the two half-pliers structures 1 are arc-shaped jaws arranged oppositely. When the two jaws 2 are clamped together, the middle part forms a clamping space 3 . There are two osteotomy holes 4 parallel to each other on the side wall, and the distance between the two osteotomy holes 4 on the same jaw 2 is the same as the length to be cut, and the osteotomy holes 4 on the two jaws 2 are equal to each other. One-to-one correspondence settings.

The handle of one of the half clamp structures 1 is hingedly provided with a limit rod 7, and the handle of the other half clamp structure 1 is provided with a through hole 8, and one end of the limit rod 7 passes through the through hole 8 and extends to the other half. On the outer side of the handle of the clamp structure 1, the limit rod 7 is provided with external threads, and the limit rod 7 outside the handle of the other half clamp structure 1 is provided with an adjusting nut 9, which is adjusted by turning the adjusting nut 9. The distance between the clamp structure 1 handle.

The outer wall of the jaw 2 at the front end of the osteotomy hole 4 is also fixed with a soft tissue baffle 10, the outer wall of the soft tissue baffle 10 is a concave structure, the outer walls of the pliers mouth 2 and the soft tissue baffle 10 are smooth curved surfaces, and the soft tissue The baffle plate 10 is arranged obliquely from the front end of the pliers mouth 2 to the rear end and the outside.

The method of osteotomy using the above device is as follows:

First, the two half-forceps structures 1 are separated, and the jaws 2 of the two half-forceps structures 1 are respectively inserted into the osteotomy site at the osteotomy site. During the insertion process, the two half-clamp structures 1 separate the flesh and nerves on the outside of the two jaws 2 and the partition 10 without destroying the flesh and nerves. A half-clamp structure 1 separates the segment to be cut from flesh and blood such as muscles, blood vessels, and nerves, and the jaws 2 and soft tissue baffles 10 are all preferably smooth and curved outer walls to avoid injury to flesh and nerves;

Then, the two half pliers structures 1 are hingedly combined into one, and the distance between the two pliers mouths 2 is adjusted, and the distance between the two pliers mouths 2 is adjusted by adjusting the adjusting nut 9;

Afterwards, at the two ends of the segment to be cut, through the osteotomy hole 4 provided on the jaws 2, the bone between the jaws 2 is cut off with an oscillating saw;

Finally, the two half-forceps structures 1 are disassembled and taken out from the osteotomy site, and the osteotomy segment can be taken out by using tools.

Example 2

Referring to accompanying drawings 5-8, this embodiment provides an orthopedic osteotomy tool, the device is a pincer structure formed by hinged middle parts of two half pincer structures 1, and the two half pincer structures 1 are detachable structure, the jaws 2 of the two half-pliers structure 1 are arc-shaped jaws arranged oppositely, when the two jaws 2 are clamped together, a clamping space 3 is formed in the middle, and there are two rows on the side wall at the rear side of each jaw 2 The osteotomy hole 4 connecting the outer side of the jaw 2 and the clamping space 3 is a drill hole. The two rows of osteotomy holes 4 on each jaw 2 are parallel to each other, and the space between the two rows of osteotomy holes 4 is parallel to each other. The distance is the same as the length of the desired osteotomy, and the two rows of osteotomy holes 4 on the two jaws 2 are uniformly arranged one by one, and a soft tissue baffle 10 is also fixedly arranged on the outer wall of the jaws 2 at the front ends of the osteotomy holes 4, and the jaws 2 and the outer wall of the soft tissue baffle 10 are smooth curved surfaces, and the outer wall of the soft tissue baffle 10 is a concave structure, and the soft tissue baffle 10 is inclined from the front end of the jaw 2 to the rear end and outside.

One of the half-clamp structures 1 is fixedly provided with a hinge shaft 5, and the other half-clamp structure 1 is provided with a hinge shaft connecting groove 6 corresponding to the hinge shaft 5, and the handle of one of the half-clamp structures 1 is hingedly provided with a limit rod 7, The handle of the other half clamp structure 1 is provided with a through hole 8, and one end of the limit rod 7 passes through the through hole 8 and extends to the outside of the handle of the other half clamp structure 1, and the limit rod 7 is provided with an external thread , the limit rod 7 outside the handle of the other half-clamp structure 1 is provided with an adjusting nut 9, and the distance between the handles of the two half-clamp structures 1 can be adjusted by turning the adjusting nut 9.

The osteotomy method is:

Step 1. Separate the two halves of the forceps 1, insert the jaws 2 of the two halves of the jaws 1 into the osteotomy site from the osteotomy edge, and set the jaws 2 opposite to each other and cover the part of the osteotomy. On the outside, during the insertion process, the two half-clamp structures 1 separate the flesh and nerves on the outside of the two jaws 2 and the partition 10 without destroying the flesh and nerves;

Step 2. Hinge and combine the two halves of the forceps 1 into one body, adjust the distance between the two jaws 2, and occlude the part to be cut into the forceps;

Step 3. At both ends of the segment to be cut, through the osteotomy hole 4 opened on the jaws 2, use a drill to cut off the bone between the jaws 2, or cut off most of the bone and break it with forceps broken bone

Step 4. Disassemble the two half-forceps structures 1 and take them out from the osteotomy site. Use a tool to break off the through holes at both ends of the osteotomy segment, and then take out the osteotomy segment.

Example 3

Referring to accompanying drawings 9-12, this embodiment provides an orthopedic osteotomy tool, the device is a pincer structure formed by hinged middle parts of two half pincer structures 1, and the two half pincer structures 1 are detachable structure, the jaws 2 of the two half-pliers structures 1 are arc-shaped jaws arranged opposite to each other. When the two jaws 2 are clamped together, the middle part forms a clamping space 3, and there are two The osteotomy hole 4 connected to the outer side of the jaw 2 and the clamping space 3, the osteotomy hole 4 is a strip hole, the osteotomy holes 4 on each jaw 2 are arranged parallel to each other, and the strip hole of the osteotomy hole 4 is also A drill hole with a diameter greater than the width of the strip hole is provided, and each osteotomy hole 4 is distributed with a plurality of drill holes along its length direction, and the distance between the two osteotomy holes 4 is the same as the desired osteotomy length, The osteotomy holes 4 on the two jaws 2 are uniformly arranged one by one, and the outer wall of the jaw 2 at the front end of the osteotomy hole 4 is also fixedly provided with a soft tissue baffle 10, and the outer walls of the jaw 2 and the soft tissue baffle 10 are both It has a smooth curved surface structure, and the outer wall of the soft tissue baffle 10 is a concave structure, and the soft tissue baffle 10 is inclined from the front end of the forceps mouth 2 to the rear end and outside.

One of the half-clamp structures 1 is fixedly provided with a hinge shaft 5, and the other half-clamp structure 1 is provided with a hinge shaft connecting groove 6 corresponding to the hinge shaft 5, and the handle of one of the half-clamp structures 1 is hingedly provided with a limit rod 7, The handle of the other half clamp structure 1 is provided with a through hole 8, and one end of the limit rod 7 passes through the through hole 8 and extends to the outside of the handle of the other half clamp structure 1, and the limit rod 7 is provided with an external thread , the limit rod 7 outside the handle of the other half-clamp structure 1 is provided with an adjusting nut 9, and the distance between the handles of the two half-clamp structures 1 can be adjusted by turning the adjusting nut 9.

The osteotomy method is:

Step 1. Separate the two halves of the forceps 1, insert the jaws 2 of the two halves of the jaws 1 into the osteotomy site from the osteotomy edge, and set the jaws 2 opposite to each other and cover the part of the osteotomy. On the outside, during the insertion process, the two half-clamp structures 1 separate the flesh and nerves on the outside of the two jaws 2 and the partition 10 without destroying the flesh and nerves;

Step 2. Hinge and combine the two halves of the forceps 1 into one body, adjust the distance between the two jaws 2, and occlude the part to be cut into the forceps;

Step 3. At both ends of the segment to be cut, cut off the bone between the two jaws 2 through the osteotomy hole 4 opened on the jaws 2, or cut off most of the bone Use pliers to break off the cut bone;

Step 4. Disassemble the two half-forceps structures 1 and take them out from the osteotomy site. Use a tool to break off the through holes at both ends of the osteotomy segment, and then take out the osteotomy segment.

Claims (10)

1. a kind of orthopaedics osteotomy instrument, it is characterised in that：The device is the pincers being hinged in the middle part of two and half wrench structures (1) It is detachable structure between shape structure, and two and half wrench structures (1), the jaw (2) of two and half wrench structures (1) is to be oppositely arranged Arc jaw, middle part forms folder dead zone (3) during two jaws (2) clamping, is offered at least on the side wall on rear side of each jaw (2) Osteotomy hole (4) on the outside of two connections jaws (2) with folder dead zone (3), and on same jaw (2) at least two osteotomy holes (4) it Between distance be intended to osteotomy length it is identical, be further fixedly arranged on soft tissue baffle plate on the outer wall of the jaw (2) of osteotomy hole (4) front end (10)。

2. a kind of orthopaedics osteotomy instrument according to claim 1, it is characterised in that：Two are provided with each jaw (2) to cut Osteotomy hole (4) on bone hole (4), two jaws (2) corresponds setting.

3. a kind of orthopaedics osteotomy instrument according to claim 1 or claim 2, it is characterised in that：Osteotomy hole (4) is bar hole, each Osteotomy hole (4) on jaw (2) is arranged in parallel.

4. a kind of orthopaedics osteotomy instrument according to claim 3, it is characterised in that：Also set up on the bar hole in osteotomy hole (4) Having diameter to be more than in the drilling of bar shaped hole width, and each osteotomy hole (4), distribution is provided with multiple drillings along its length.

5. a kind of orthopaedics osteotomy instrument according to claim 1, it is characterised in that：Osteotomy hole (4) is drilling, each jaw (2) the distance between the osteotomy hole (4) that two rows are parallel to each other, and two row's osteotomy holes (4) are offered on identical with being intended to osteotomy length.

6. a kind of orthopaedics osteotomy instrument according to claim 1, it is characterised in that：It is fixed on one of them half wrench structure (1) Jointed shaft (5) is provided with, correspondence jointed shaft (5) place is provided with jointed shaft link slot (6) on another half wrench structure (1).

7. a kind of orthopaedics osteotomy instrument according to claim 1, it is characterised in that：The handle of one of them half wrench structure (1) Place, which is hinged, is provided with gag lever post (7), and through hole (8), one end of gag lever post (7) are provided with the handle of another half wrench structure (1) Through through hole (8) and the outside of another described half wrench structure (1) handle is extended, gag lever post is provided with external screw thread on (7), described Be provided with adjusting nut (9) on gag lever post (7) on the outside of another half wrench structure (1) handle, by turn adjusting nut (9) with Adjust the distance between two and half wrench structures (1) handle.

8. a kind of orthopaedics osteotomy instrument according to claim 1, it is characterised in that：Jaw (2) and soft tissue baffle plate (10) Outer wall is smooth curved-surface structure, and the outer wall of soft tissue baffle plate (10) is concave structure.

9. a kind of orthopaedics osteotomy instrument according to claim 1, it is characterised in that：Soft tissue baffle plate (10) is by jaw (2) Front end is to the back-end and outside is obliquely installed.

10. the method for osteotomy is carried out using any claim described device in claim 1-9, it is characterised in that step is such as Under：

Step one, separates two and half wrench structures (1), is respectively inserted the jaw (2) of two and half wrench structures (1) by the osteotomy edge of a knife Enter to be intended at osteotomy, two jaws (2) are oppositely arranged and be coated on the outside for being intended to osteotomy section, mistake of two and half wrench structures (1) in insertion Flesh and blood and nerve, are separated in the outside of two jaws (2) and dividing plate (10) by Cheng Zhong on the premise of flesh and blood and nerve is not destroyed；

Two and half wrench structures (1) are hinged and are combined into one by step 2, the distance between two jaws (2) of regulation, are intended to osteotomy Part is snapped inside pliers；

Step 3 is being intended at the two ends of osteotomy section, by the osteotomy hole (4) opened up on jaw (2), using goose saw or drill bit by two Bone between individual jaw (2) is blocked, or is sectioned after most of sclerotin and to be broken disconnected institute's osteotomy bone using pliers；

Step 4 takes two and half wrench structures (1) apart, and is taken out by osteotomy, is taken out osteotomy section using instrument.