JP2014195632A - Artificial bone granule replenishing jig - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an artificial bone replenishing jig capable of replenishing an artificial bone material while controlling a replenishing amount with no scattering or falling to the surrounding when a powdery or granular artificial bone material is replenished to a bone defective part.SOLUTION: In an artificial bone replenishing jig, a hollow space for storing an artificial bone material is provided to a body of the replenishing jig, and the body includes a replenishing port 62 for storing the artificial bone material and a discharge port 63 for discharging the stored artificial bone material to the outside. When the body is set horizontal in a usage state, the replenishing port and the discharge port have a positional relationship that the replenishing port is located at a higher position and the discharge port is located at a lower position based on the horizontal plane. The discharge port has a shutter 64, and the shutter is connected to a lever 65 by a connection material. By the operation of the lever, the shutter is opened/closed, and the artificial bone material is discharged from the discharge port to the outside. By adjusting the lever operation, the opening/closing of the shutter is adjusted so as to control the amount of discharge. In the replenishing work, an operator can grip the body with one hand, and perform the lever operation with a finger.

Description

  The present invention relates to a compensation jig for supplementing powder or granular artificial bone material.

  Artificial bone materials such as HA (hydroxyapatite) and β-TCP (β-tricalcium phosphate) are used to repair the missing bone as a treatment when a defect occurs in the bone due to an accident or illness. It is used in surgery as a therapeutic material.

  These surgeries are mainly performed by orthopedic surgeons. Depending on the condition of the diseased part, a bone or bone caused by a defect can be obtained using a small piece of artificial bone material in the form of powder or granules, a sharp spoon, a medical spoon or spoon It is performed to fill in the voids.

  However, this supplementary work using sharps or the like is inferior in workability because powder and granules spill or scatter into the surrounding soft tissue and are not sufficiently filled into the target site, which hinders smooth surgery. It was.

  During the operation, if artificial bone powder or granules spill and adhere to the surrounding soft tissue where you want to avoid supplementation, remove it with saline to remove it, or adhere to the soft tissue. Therefore, it was necessary to remove each of the grains using tweezers, which increased the operation time.

  Although a funnel-shaped jig may be used as a measure for improving the above problems, powder and granules are caught inside the funnel and clogging is likely to occur, resulting in poor workability. HA and β-TCP artificial bones have high hardness and have chamfered surfaces, so they can easily clog the inner surface of the funnel. If you push it forcibly, the inner surface of the funnel will be cut, and the material of the cut funnel will be mixed with the artificial bone material. It is a problem.

  Also, when artificial bone material needs to be replenished deep in the surgical field, such as in hip joint surgery, a funnel with a long tip is inevitably used, but powder or granules are filled from the mouth of the funnel. Since there is a time difference between the work and the discharge timing from the tip of the funnel, it has been difficult to accurately control the amount of compensation required by the operator.

  None

  The problem to be solved was aimed at promptly without scattering or dropping off to the surrounding tissue part when filling the bone defect with powder or granular artificial bone material in surgery requiring artificial bone supplementation. It is impossible to make up for the place.

  In addition, when supplementing powder or granular artificial bone material, it is impossible to perform a supplementing operation to obtain a supplement amount that the surgeon considers to be an appropriate amount.

  The present invention provides an artificial bone filling treatment that enables a bone or defect artificial bone material to be filled into a bone defect part while accurately and promptly controlling the amount of filling. The main feature is that it is a tool.

  The artificial bone filling jig according to the present invention can supply an appropriate amount of powder or granular artificial bone material to a target site without scattering or dropping off to surrounding tissues, while controlling the amount of filling. There is an advantage that the operation time can be shortened by an accurate filling operation.

  FIG. 1 shows an embodiment of the apparatus of the present invention. 1 shows the main body of this apparatus, and there is a cavity for storing artificial bone material inside. The main body is made of a substantially transparent material, and it is transparent so that the amount stored in the main body can be known from the outside. Can do.

  Reference numeral 2 denotes a replenishing port for replenishing and storing the artificial bone material inside the main body. Reference numeral 3 denotes a discharge port for discharging the artificial bone material from the body of the compensation jig to the outside. 2 and 3 are designed to have a positional relationship such that the replenishing port is in the upward direction and the discharge port is in the downward direction with respect to the horizontal plane when in use as shown.

Reference numeral 4 denotes a shutter for opening and closing the discharge port. Reference numeral 5 denotes a guide groove for sliding the shutter when the shutter is opened and closed. Reference numeral 6 denotes a connecting member that connects 5 shutters and 7 levers, and the shutters can be opened and closed by operating the levers. By operating the lever while adjusting it during the compensation operation, the shutter can be opened and closed, and control such as increasing or decreasing the compensation amount can be performed.

  At the time of carrying out the supplementary work, the surgeon holds the main body with one hand and operates the lever with a finger so that the artificial bone material can be supplemented in that state.

  Next, the usage method will be described. With the main body of 1 substantially horizontal, artificial bone material is replenished into the cavity inside the main body from the second replenishment port.

  Since the main body of 1 is almost transparent, the storage amount of the artificial bone material refilled inside can be visually confirmed from the outside.

  In order to make up for the artificial bone material, the four outlets are positioned in the vicinity of the targeted bone defect.

At this time, the main body of 1 is inclined so that the discharge port of 4 is below the horizontal plane.

  When the lever 7 is operated with a finger while the main body is held with one hand, the shutter is slid through the connecting rod 6, the discharge port is opened, and the artificial bone material stored in the main body is discharged. The artificial bone material inside is discharged from the discharge port by gravity.

  By operating the filling port close to the bone defect part, the dispersion to the surrounding tissue part is suppressed, and the target part is filled.

  By extending the length between the gripping portion of the main body and the discharge port, it is possible to compensate for the deep position of the surgical section.

  The opening area of the shutter can be adjusted by the amount of operation of the lever, and if it is opened wide, more artificial bones can be compensated in a short time.

  In addition, when the defect portion is sufficiently filled, by operating the lever in the direction of closing the shutter, it is possible to stop the filling work without performing more than necessary filling.

  As shown in FIG. 2, it is possible to prevent a spill from the replenishing port during handling by performing a lid on the refilling port.

  FIG. 3 shows a second embodiment of the compensation jig of the present invention. 1 Artificial bone with a gripping part for easy gripping on the right side of the figure, integrating 42 shutters and 62 connecting members, and making 72 levers ring-shaped so that operation with fingers is easy and reliable It is a filling jig.

FIG. 4 is an artificial bone filling jig in which the 33 outlets on the left side of one body of the compensation jig of the present invention are set obliquely and considering use in a state where the body is actively inclined.
43 The shutter is made of a flexible member so as to slide smoothly along the guide groove.

  FIG. 5 shows that when 51 and 52 reeds are installed on the artificial bone grafting jig, a gap is provided between the main body and the top surface of the desk when placed on the desk so that fingers can easily enter when holding the main body. At the same time, it is an artificial bone prosthesis that can be placed stably without falling on a desk.

  FIG. 6 is a diagram showing a state when the artificial bone prosthesis is used. After the artificial bone is replenished from the 62 replenishment port, the main body is installed slightly obliquely, and the 65 lever (opening / closing knob) is slid in the “open” direction, the 64 shutter is opened, and the artificial bone is discharged from the 63 discharge port. At this time, a guide guide 66 is installed at the 63 discharge port, and the discharged artificial bone is guided to this, so that the target site can be easily supplemented. The body is made of transparent or gray smoke material, so that the amount of artificial bone inside can be grasped from the appearance. When the artificial bone is clogged inside the main body, it can be pushed out from the replenishing port with a thin rod-like pusher. (The pusher is not shown.)

FIG. 1 is an explanatory view showing Example 1 of an artificial bone filling jig. FIG. 2 is a view in which the shutter is opened in order to discharge the artificial bone material from the filling device in FIG. FIG. 3 shows a second embodiment of the artificial bone prosthesis jig in which a grip portion is provided on the main body and a lever for opening and closing the shutter is formed in a ring shape. FIG. 4 is a view in which the discharge port of the main body of the artificial bone replenishing jig is inclined obliquely to facilitate replenishment. FIG. 5 shows that when the artificial bone filling jig is placed on a desk, a gap is provided between the main body and the top surface of the desk, and 51 52 reeds were installed. FIG. 6 is a diagram showing a use state of the artificial bone filling jig. Figure 7 shows a conventional example using a funnel

Claims (5)

In artificial bone filling jig,
There is a body with a cavity for filling powder or granular artificial bone material,
There is a replenishment port for replenishing the artificial bone material in the cavity part,
There is an outlet for discharging the replenished artificial bone material,
The discharge port is provided with a shutter that can be opened and closed, and has a structure that regulates the discharge of the artificial bone material from the discharge port by opening and closing the shutter,
A lever for opening and closing the shutter is provided on the main body,
There is a connecting medium that connects the lever and the shutter,
When the lever is operated, the movement is connected through the connecting medium,
The shutter is structured to slide along a guide provided at the discharge port, and the opening / closing operation is performed.
An artificial bone replenishing jig, wherein an operator who performs a replenishing operation of the artificial bone material can operate the lever while holding the main body. 2. The supplementary jig according to claim 1, wherein all or part of the main body is made of a transparent material, and the internal volume of the artificial bone material replenished inside can be visually confirmed from the outside. 2. The supplementary jig according to claim 1, wherein when the artificial bone is supplemented, the supplementary port is located above the discharge port when the horizontal plane is used as a reference plane. The supplementary jig according to claim 1, wherein a guide for the discharged artificial bone material is provided at a discharge port of the powdered or granular artificial bone material. The structure according to claim 1, claim 2, claim 3 or claim 4, characterized in that after the powder or granular artificial bone material is replenished from the replenishing port, the replenishing port can be capped. The filling jig to be used.

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