CN208511158U - A kind of bendable Cement fixation mesh bag - Google Patents

Abstract

The utility model relates to a kind of bendable Cement fixation mesh bags, belong to the field of medical instrument technology, including injection pipe, the injection pipe is internally provided with inner catheter, the front space of injection pipe and inner catheter is fixed with mesh bag, mesh bag interior forward end is connected with end by bounding wire, extensible bendable core needle is provided in inner catheter, the front end of bendable core needle is provided with the elastic elbow that camber is had made of elastic material, the end of elastic elbow is located in end, and the rear end of bendable core needle is provided with orientation release piece.The advantages of the utility model reaches the filling position of needs with the straight and rounded sections that can pass through bending service aisle, may be implemented in the reliable filling of different collapse of vertebra positions while avoiding bone cement from leaking.

Description

A kind of bendable Cement fixation mesh bag

Technical field

The utility model relates to a kind of bendable Cement fixation mesh bags, belong to the field of medical instrument technology, are particularly suitable for The micro-wound surgical operation of osteoporobe vertebra compressive fracture.

Background technique

Senile osteoporosis vertebral compression fractures are clinically relatively common, and the primary treatments of the disease have at present It lies up, Oral Calcium Preparations and analgesic, wear brace, physics and rehabilitation etc., or have in traditional pedicle screw Fixed operation, can solve the reset and fixation problem of fracture, but that there are wounds is big, the hospital stays is long, costly, loose centrum Holding power is inadequate, needs the disadvantages of second operation.

Occurs Minimally invasive procedure operation in recent years, by injecting bone cement into centrum to increase centrum intensity and steady It is qualitative, have the advantages that wound is small, good analgesic effect, still, such operation need to be infused by way of percutaneous puncture into sick vertebra Enter filling material of bone, be easy a series of complication relevant to bone filler injection that occur together during surgery, as bone cement leaks.

Doctor will use bone filling mesh bag and leak to prevent bone cement in the treatment operation of part, in operation, by mesh bag edge Service aisle is sent into centrum, then bone cement is injected in mesh bag, and the centrum collapsed is being raised, centrum intensity is increased, is being alleviated While pain, the macromolecule net-layer structure of mesh bag densification can wrap up the bone cement of the overwhelming majority, reduce the leakage of bone cement Rate.But existing filling mesh bag is mostly straight configuration, when special in face of disease vertebra position, mainly uses two ways Operation, mode one establish straight service aisle, but need to carry out opposite side puncture to patient or puncture repeatedly, the disadvantage is that patient Damage it is larger, being advantageous in that can be bonded very well with subsequent filling mesh bag, inject Intrapyramidal bone cement convenient for control；Side Formula two establishes bending service aisle, is advantageous in that avoiding opposite side punctures or puncture repeatedly caused by patient compared with macrolesion, But disadvantage is to be difficult to be bonded well with the filling mesh bag realization of subsequent straight, and then the bone cement for injecting centrum is difficult to Precise control.

Summary of the invention

To solve the above technical deficiency, the utility model provides a kind of bendable Cement fixation mesh bag, Neng Goushun Benefit reaches the filling position of needs by the straight and rounded sections of bending service aisle, can while avoiding bone cement from leaking Realize the reliable filling in different collapse of vertebra positions.

The technical solution of the utility model is as follows: a kind of bendable Cement fixation mesh bag, including injection pipe, the injection pipe It is internally provided with inner catheter, the front space of injection pipe and inner catheter is fixed with mesh bag, and mesh bag interior forward end passes through bounding wire and connects It is connected to end, extensible bendable core needle is provided in inner catheter, the front end of bendable core needle is provided with made of elastic material The end of elastic elbow with camber, elastic elbow is located in end, and the rear end of bendable core needle is provided with orientation release piece.

The technical solution of the utility model further include: the orientation release piece includes the fixing seat connecting with bendable core needle, Fixing seat is connected with rotatable rotary sleeve.

The technical solution of the utility model further include: the orientation release piece includes the mounting base connecting with bendable core needle, Clamping protrusion or clamping groove are provided in the mounting base.

The technical solution of the utility model further include: the rear end of the injection pipe is provided with injection tube socket, the inner catheter Rear end be provided with inner catheter seat.

The technical solution of the utility model further include: the injection pipe seat is located at the front of inner catheter seat, inner catheter seat Rear end is provided with the screw thread connecting with rotary sleeve.

The beneficial effects of the utility model are: devising bendable core needle, elastic material system is utilized in the front end of bendable core needle The elastic elbow with camber is made, when filling straight section of the mesh bag by service aisle, in the limit of straight service aisle Under production is used, elastic elbow deforms to pass through the straight section of service aisle, when the curved section for reaching service aisle Timesharing, it is preset elbow shapes that elastic elbow is replied under natural resiliency effect, while mesh bag connected to it being driven to occur Deformation forms camber, matches completely so as to make mesh bag puncture the bending channel established with bending, can need position to centrum Accurately fill bone cement；Also, occurs the problem of bone cement leakage when can avoid filling by setting mesh bag, while inside and outside utilization The inner catheter of setting and the fixed mesh bag of the front space of injection pipe, can realize inner catheter and injection after the completion of Cement fixation Pipe is quickly withdrawn；In addition, orientation release piece is devised in the rear end of bendable core needle, it thus can when extracting bendable core needle outward Avoiding bendable core needle from rotating in mesh bag causes mesh bag to rotate caused damage in centrum.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model.

Fig. 2 is the utility model mesh bag schematic diagram of internal structure.

Fig. 3 is the schematic diagram of the utility model bendable core needle.

1, mesh bag, 2, injection pipe, 3, injection tube socket, 4, inner catheter seat, 5, rotary sleeve, 6, inner catheter, 7, bendable core needle, 8, End, 9, bounding wire, 10, fixing seat, 11, elastic elbow.

Specific embodiment

Below in conjunction with attached drawing, by embodiment, the utility model is described in further detail.

As shown in Figure 1 to Figure 3, a kind of bendable Cement fixation mesh bag of the utility model, ecto-entad are disposed with Injection pipe 2, inner catheter 6, bendable core needle 7, there are gap between injection pipe 2 and inner catheter 6, mesh bag 1 is fixed on injection pipe 2 and interior In the gap of 6 front end of conduit, thus injection pipe 2 and inner catheter 6 can quickly be withdrawn after completing Cement fixation.This is practical new In the embodiment of type, in order to facilitate doctor to operate, it is provided with injection tube socket 3 in the rear end of injection pipe 2, in inner catheter 6 Rear end is provided with inner catheter seat 4, also, injection tube socket 3 is arranged in the front of interior catheter block 4.

The interior forward end of mesh bag 1 is connected with end 8 by bounding wire 9, and design has holding tank in end 8, bendable core needle 7 End (i.e. close to one end of centrum) is located in holding tank to fix with mesh bag 1, and bendable core needle 7 is avoided arbitrarily to move in mesh bag 1 It is dynamic.

It is matched in order to puncture the bending service aisle established with bending, in the front end of bendable core needle 7 (i.e. close to centrum One end) devise the elastic elbow 11 that camber is had made of elastic material, mesh bag 1 connected to it thus can be driven to produce Raw same camber deformation, and the straight and rounded sections of bending service aisle can be passed through, portion can be needed to centrum Fill accurate bone cement in position.

In order to avoid movement causes to damage to patient in mesh bag 1 when extracting bendable core needle 7 outward, in bendable core needle 7 Rear end devises orientation release piece.In the embodiments of the present invention one, as shown in figure 3, orientation release piece includes fixing seat 10 With rotary sleeve 5, wherein fixing seat 10 and bendable core needle 7 are fixed, by screw or unscrew rotary sleeve 5 realize bendable core needle 7 with it is interior The fixation or disengaging of catheter block 4.Also, during screwing or unscrewing rotary sleeve 5, since rotary sleeve 5 and fixing seat 10 are Separate structure, therefore not will cause the bendable core needle 7 connecting with fixing seat 10 and rotate, and then not will cause and bendable core needle The mesh bag 1 of 7 connections rotates in centrum.

In another embodiment of the utility model, orientation release piece includes the mounting base connecting with bendable core needle 7, is being installed Design has the protrusion or groove of clamping on seat, and mobile mounting base is thus directed out when withdrawing bendable core needle 7, is avoided Bendable core needle 7 drives mesh bag 1 to rotate in centrum.

When operation, first 7 end of bendable core needle is put into end 8, mesh bag 1 is fixed on injection pipe 2 and inner catheter 6 later In front space, then injection pipe 2, inner catheter 6 and 7 rear end of bendable core needle are fixed, mesh bag will be filled along service aisle later It is put into centrum, arrival first extracts bendable core needle 7 after needing position, and bone cement is injected into centrum along inner catheter 6 later, fills Injection pipe 2 and inner catheter 6 are withdrawn after the completion.

The above is only the preferred embodiment of the utility model, not does limit in any form to the utility model System, done any modifications, equivalent replacements, and improvements etc., should be included in this reality within the spirit and principle of the utility model Within novel protection scope.

Claims (5)

1. a kind of bendable Cement fixation mesh bag, it is characterised in that: including injection pipe (2), the injection pipe (2) is internally provided with The front space of inner catheter (6), injection pipe (2) and inner catheter (6) is fixed with mesh bag (1), and mesh bag (1) interior forward end is by tying up Line (9) is connected with end (8), and extensible bendable core needle (7), the front end setting of bendable core needle (7) are provided in inner catheter (6) There is the elastic elbow (11) that camber is had made of elastic material, the end of elastic elbow (11) is located in end (8), bendable The rear end of core needle (7) is provided with orientation release piece.

2. a kind of bendable Cement fixation mesh bag as described in claim 1, it is characterised in that: the orientation release piece include with The fixing seat (10) of bendable core needle (7) connection, fixing seat (10) are connected with rotatable rotary sleeve (5).

3. a kind of bendable Cement fixation mesh bag as described in claim 1, it is characterised in that: the orientation release piece include with The mounting base of bendable core needle (7) connection is provided with clamping protrusion or clamping groove in the mounting base.

4. a kind of bendable Cement fixation mesh bag as described in claims 1 to 3 is any, it is characterised in that: the injection pipe (2) Rear end be provided with injection tube socket (3), the rear end of the inner catheter (6) is provided with inner catheter seat (4).

5. a kind of bendable Cement fixation mesh bag as claimed in claim 4, it is characterised in that: the injection tube socket (3) is located at The front of inner catheter seat (4), the rear end of inner catheter seat (4) are provided with the screw thread connecting with rotary sleeve (5).