JP2016179158A - Pump type filling device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a filling device which can supply prosthetic material to a required portion at any position and any angle and hardly causes clogging when discharging the prosthetic material.SOLUTION: A pump type filling device 100 comprises: an accommodation part 1 which includes an internal space filled by powdery or granular prosthetic material in a roughly closed state and is at least partly formed by flexible material; and a hollow cylindrical pipe part 2 which has a center hole communicated with the internal space of the accommodation part. The pipe part includes a bendable part 22 a part of which can be held in a bended state and through which the prosthetic material can be passed even in the bended state. The prosthetic material by which the internal space is filled is discharged through the center hole of the pipe part to the outside by compressing the internal space of the accommodation part.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a pump-type filling device for supplying powdery or granular filling material to a necessary site. More specifically, the pump-type filling device of the present invention is used when, for example, artificial bone material is filled in a void portion of a bone caused by a defect, and the filling material is made into the void portion using air pressure. To supply.

  When bones (living bones) are damaged due to an accident or illness, in general, in surgery to repair the missing bones, HA (hydroxyapatite) or β-TCP (β-tricalcium phosphate) ) And other artificial bone materials are used as therapeutic materials. Such bone repair surgery is performed by an orthopedic surgeon. The orthopedic surgeon selects a powdered or granular artificial bone material according to the condition of the diseased part, and uses the sharp bone, a medical spoon, or a spoon etc. for the artificial bone material. Fill the part with artificial bone material.

  However, in the filling work using a sharp knife or the like, powdered or granular artificial bone material is easily spilled during transportation to the defect, and easily adheres to the soft tissue around the defect. In addition, if the artificial bone material adheres to the surrounding soft tissue different from the filling site during the operation, it is washed away using physiological saline to remove this, or the granular artificial bone attached to the soft tissue is removed. It is necessary to remove one grain of each using tweezers, resulting in an increase in operation time. In this way, when using sharp blades in the artificial bone material replacement work, it is difficult to reliably transport the artificial bone material to the target defect and the workability is poor, which hinders smooth surgery. It was.

  In view of such a situation, the present inventor has proposed various types of filling tools having a new structure in order to facilitate the artificial bone material filling operation (Patent Documents 1 to 3, etc.). For example, in Patent Document 1, the shutter is opened and closed by operating the lever, and the artificial bone material is discharged from the discharge port to the outside, and the opening and closing state of the shutter is adjusted by adjusting the lever operation. However, those that can control the discharge of artificial bone materials have been proposed. Moreover, in patent document 2, it is a funnel-shaped artificial bone filling jig, and the discharge of the artificial bone material stored in the funnel is temporarily stopped by bending the tip of the throat part. It has been proposed that the release of the artificial bone material can be started by releasing the bending state. Further, in Patent Document 3, the end of the cylindrical storage portion is temporarily folded so that the artificial bone material can be filled, and the end folded portion is removed from the slider and straightened. , Proposals have been made that can start discharging artificial bone material.

JP 2014-195632 A JP 2014-226526 A Japanese Patent Laying-Open No. 2015-016274

  By the way, the conventional artificial bone material filling device is filled with powdered or granular artificial bone material in the container, and when necessary such as during surgery, the artificial bone material is dropped by its own weight, It is supposed to be discharged from the outlet. For this reason, it is possible to fill the bone defect part by dropping the artificial bone material. However, the conventional prosthesis has a problem that it is difficult to supply artificial bone material to, for example, a bone defect located above the discharge port of the filling instrument or a bone defect located deeper in the living body. there were. In addition, when discharging the artificial bone material, the conventional prosthetic device always needs to lift the artificial bone material container higher than the discharge port, for example, the height difference between the container and the discharge port. When the size of the container is small, when the housing portion and the discharge port are positioned substantially horizontally, or when the storage portion is positioned below the discharge port, the artificial bone material cannot be discharged properly.

  Further, as described above, the conventional filling device performs the filling by using the fall of the artificial bone material due to its own weight. For this reason, for example, in a funnel-shaped filling device, powdered or granular artificial bone material is likely to be clogged in a thin cylindrical throat portion. In addition, in the conventional filling device, once the artificial bone material is clogged at the throat part, the clogging cannot be eliminated unless the throat part is crushed by hand. In many cases, it is necessary to interrupt the work of supplementing artificial bone materials, and there remains a problem in workability.

  In view of the above, an object of the present invention is to provide a filling device that can supply a filling material to a necessary portion at a free position and angle, and that is less likely to be clogged when the filling material is discharged.

  As a result of intensive studies on the means for solving the problems of the conventional invention described above, the inventor of the present invention has made the accommodating portion for filling the powdery or granular supplementary material into a substantially hermetically sealed state. A bendable portion is provided in the hollow tube-shaped pipe portion that communicates, and the direction of the discharge port provided at the tip of the pipe portion can be freely changed via this bendable portion, thereby adding the accommodating portion. We obtained knowledge that it was possible to eject the filling material from the discharge port at the tip of the pipe in any direction by using the air pressure when compressed. According to such a configuration, for example, even when the receiving portion of the filling material is located below the tip of the pipe portion, the filling material can be supplied to a necessary place, and the convenience of the filling tool is increased. And workability is improved. Further, by pushing out the filling material using air pressure, the filling material is less likely to be clogged inside the pipe portion. The inventor has conceived that the problems of the conventional invention can be solved based on the above knowledge, and completed the present invention. More specifically, the present invention has the following configuration.

The present invention relates to a pump-type filling device that supplies a filling member such as an artificial bone material to a necessary portion.
The pump-type filling device of the present invention includes a housing part 1 and a pipe part 2.
The accommodating part 1 has an internal space filled with a powdery or granular filling material, and at least a part thereof is made of a flexible material. This internal space is preferably substantially sealed. The term “substantially sealed” as used herein refers to the use of air pressure when the internal space is compressed by pressing the flexible part of the housing, and the filling material in the internal space is removed from the outlet of the pipe. What is necessary is just to be in the state which can be ejected. For example, the “substantially sealed state” referred to here also includes a case where a fine hole that can be closed with a finger pad is formed in the housing portion 1 or an intake port that is closed by a check valve described later is formed. include.
The pipe part 2 is a hollow cylindrical part having a central hole communicating with the internal space of the housing part 1.
The pipe portion 2 has a bendable portion 22. The bendable portion 22 can be maintained in a state where the pipe portion 2 is partially bent (refracted or curved), and is a portion through which the supplementary material can pass even in this bent state.
Thereby, in the pump type filling device of the present invention, the filling material filled in the internal space is pressed through the center hole of the pipe portion 2 by pressing the portion formed of the flexible material of the housing portion 1. Is ejected.

  As described above, the pump-type filling device according to the present invention has the bendable portion 22 formed in the pipe portion 2, and further compensates from the tip of the pipe portion 2 using the air pressure when the accommodating portion 1 is pressed. The material can be ejected. For this reason, for example, it is possible to accurately supply a supplemental material such as an artificial bone material to a bone defect located above the discharge port of the pipe portion 2 or a bone defect located deep in the living body. it can. In addition, since the filling tool of the present invention discharges the filling material using air pressure, for example, when the housing portion 1 is positioned substantially horizontally with the pipe portion 2, or the housing portion 1 is more than the pipe portion 2. Even in the case of being located below, the supplementary material can be ejected and supplied to a necessary location. Furthermore, since the filling tool of the present invention extrudes the filling material not only by the fall of the filling material due to its own weight but also by air pressure, the filling material can be urged in the pipe portion 2. As a result, there is an advantage that the powdery or granular filling material is less likely to be clogged in the pipe portion 2.

In the pump-type filling device of the present invention, it is preferable that the accommodating portion 1 has a tank portion 11, an intake port 12, and a check valve 13.
The tank part 11 forms a substantially sealed internal space for filling the filling material. The air inlet 12 is formed in a part of the tank portion 11. Further, the check valve 13 is provided at the intake port 12 and has a structure that restricts the outflow of air from the internal space while allowing the inflow of air into the internal space through the intake port 12. Yes.

  By forming the inlet 12 with the check valve 13 in the tank portion 11 for filling the filling material as in the above configuration, the air for injecting the filling material can be taken in through the check valve 13. Therefore, it is possible to continuously eject the filling material in the tank portion 11. In this way, if continuous ejection of filling material becomes possible, it becomes unnecessary to eject a large amount of filling material at a time, and it becomes easier to divide a small amount of filling material into small portions. It becomes easy to supply to the correct position. In addition, it is possible to avoid a situation in which the injected filling material adheres to the surroundings of the necessary part (for example, soft tissue around the bone defect). Furthermore, after completing the supply of the supplementary material to the necessary location, or during the operation of supplying the supplementary material to the necessary location, the supplementary tool of the present invention can be used as a blower. That is, since it can blow locally to the site | part where external air cannot reach easily using the filling tool of this invention, the filling material with which the defect | deletion part of the bone was filled can be dried quickly, for example.

  In the pump-type filling device of the present invention, it is preferable that a part or the whole of the housing portion 1 is formed of a transparent material or a translucent material that allows the filling material filled in the internal space to be visually recognized from the outside.

  As in the above configuration, at least a part of the accommodating portion 1 is formed of a transparent material or a translucent material, so that the remaining amount of the filling material filled in the accommodating portion 1 or the pipe portion 2 is introduced. Since the amount of the filling material that will be ejected by the next pressurization can be confirmed, it becomes easy to operate the filling device appropriately.

  In the pump-type filling device of the present invention, it is preferable that at least the bendable portion 22 of the pipe portion 2 is formed of a flexible material.

  It is considered that the filling material is particularly likely to be clogged in the bendable portion 22 of the pipe portion 2. However, by forming the bendable portion 22 with a flexible material, the filling material was clogged by any chance. Even in this case, it becomes easy to remove the clogging by deciphering by hand.

In the pump-type filling device of the present invention, it is preferable that the storage unit 1 has a tank unit 11 and an intermediate storage unit 14.
As described above, the tank part 11 is a part that forms a substantially sealed internal space for filling the filling material. Moreover, the intermediate | middle storage part 14 is connected to the internal space of the tank part 11, and is a site | part which forms the small space whose volume is smaller than this internal space. In this case, the central hole of the pipe portion 2 communicates with the intermediate storage portion 14. The internal space of the tank part 11, the small space of the intermediate storage part 14, and the central hole of the pipe part 2 are spaces communicating with each other. A small space of the intermediate storage portion 14 is located between the internal space of the tank portion 11 and the center hole of the pipe portion 2.

  As described above, by providing a small space for the intermediate storage portion 14 between the internal space of the tank portion 11 and the center hole of the pipe portion 2, the filling material in the tank portion 11 is temporarily stored in the intermediate storage portion 14. After staying, it is led to the pipe part 2 step by step. For this reason, it is prevented that a large amount of the filling material in the tank part 11 is introduced into the pipe part 2 at a time, and it is possible to effectively prevent clogging of the filling material near the inlet of the pipe part 2. Can be suppressed. In addition, for example, by forming the intermediate storage portion 14 with a transparent material or a semi-transparent material, the user can compensate while visually checking the state of the filling material flowing into the pipe portion 2 (flow rate and flow rate). You can operate the tool properly. Further, for example, by setting the volume of the intermediate reservoir 14 to a capacity that is just good enough to eject the supplementary material at a time, the operation of adjusting the ejection amount of the supplementary material using the capacity of the intermediate reservoir 14 as a guide. It becomes possible.

The pump-type filling device of the present invention may be a reusable type (a reusable type). The reusable type filling device includes a body member 10 and a head member 20.
The body member 10 is a member having an input port 16 into which a filling material can be input. The head member 20 is a separate member from the body member 10 and is attached to the body member 10 so as to close the input port 16. In this case, the accommodating portion 1 is formed on the body member 10, and the pipe portion 2 is formed on the head member 20. For this reason, the charging port 16 of the body member 10 can be closed by filling a desired amount of the filling material through the charging port 16 of the body member 10 and attaching the head member 20 thereto. As described above, the head member 20 is attached to and detached from the body member 10, so that the inside of the body member 10 can be repeatedly filled with a filling material.

  As in the above-described configuration, the material cost and the like can be suppressed by making the filling device of the present invention a reusable type.

  The pump type filling device of the present invention may be a disposable type (disposable type). In the disposable type filling device, the housing part 1 and the pipe part 2 are integrally molded. For this reason, this filling device is pre-filled with an appropriate amount of filling material, and refilling is difficult after the filling material in the interior is used up.

  As described above, the sanitary state of the filling material can be maintained by making the filling device of the present invention a disposable type.

  The pump-type filling device of the present invention may be a replayable type (a type that can be replaced). In the refillable type pump-type filling device, the housing portion 1 includes a body member 10 that forms an internal space, and a cap member 30 that is detachably attached to the body member 10. The pipe portion 2 is configured by a nozzle member 40 that is detachably attached to the cap member 30.

  By comprising as mentioned above, the nozzle member 40 can be changed according to a use. For example, by preparing in advance a plurality of nozzle members 40 having different diameters, lengths, shapes, materials, etc., it is possible to select and use an appropriate nozzle member 40 according to the surgical situation and application.

  In the present invention, the filling material is preferably an artificial bone material. As the artificial bone material, a material made of HA (hydroxyapatite), a material made of β-TCP (β-tricalcium phosphate), or a material obtained by mixing these materials can be suitably used.

  ADVANTAGE OF THE INVENTION According to this invention, it is possible to supply a filling material to a required location at a free position and angle, and can provide the filling tool which is hard to raise | generate clogging at the time of discharge | emission of a filling material.

FIG. 1 shows the overall configuration of the filling device according to the first embodiment. FIG. 2 shows a state in which the filling device according to the first embodiment is disassembled into constituent members. FIG. 3 shows a state where the prosthetic device according to the first embodiment is in use, and the artificial bone material is circulating in the pipe portion. FIG. 4 shows a state where the prosthetic device according to the first embodiment is in use and the artificial bone material is ejected. FIG. 5 is a state in which the filling device according to the first embodiment is used, and shows a state in which outside air is taken into the housing portion. FIG. 6 shows the overall configuration of the filling device according to the second embodiment. FIG. 7 shows a state in which the filling device according to the second embodiment is erected on a plane. FIG. 8 shows a state where the prosthetic device according to the second embodiment is in use, and the artificial bone material is circulating in the pipe portion. FIG. 9 shows a state where the prosthetic device according to the second embodiment is in use and the artificial bone material is ejected. FIG. 10 is a state in which the filling device according to the second embodiment is used, and shows a state in which outside air is taken into the housing portion. FIG. 11 shows a state in which the filling device according to the second embodiment is in use, and a state in which physiological saline is sucked into the housing portion from the tip of the pipe portion. FIG. 12 shows a state in which the filling device according to the second embodiment is in use, and after the physiological saline is taken into the housing portion, the filling device is stood on a plane. FIG. 13 shows a state in which the filling device according to the third embodiment is disassembled into constituent members.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. This invention is not limited to the form demonstrated below, The thing suitably changed in the range obvious to those skilled in the art from the following forms is also included.

  The present invention relates to a pump-type filling device for supplying powdery or granular filling material to a necessary site. In the following, an artificial bone material is given as an example of a filling material, and a pump-type filling device for filling this artificial bone material into a bone (living bone) defect will be described. However, the filling material is not limited to artificial bone material.

[1. First Embodiment: Reusable type pump-type filling device]
First, a first embodiment of a pump-type filling device 100 according to the present invention will be described with reference to FIGS. The first embodiment relates to a reusable type (reusable type) pump-type filling device.

  FIG. 1 shows the overall structure of a pump-type filling device 100 according to the first embodiment, and FIG. 2 shows a state where the pump-type filling device 100 is disassembled into constituent members. As shown in FIGS. 1 and 2, the pump-type prosthetic device 100 according to the first embodiment includes an accommodating portion 1 having an internal space for filling a powdered or granular artificial bone material, and the accommodating portion. It comprises a pipe part 2 for discharging the artificial bone material filled in the part 1. The internal space of the housing part 1 is substantially sealed. Moreover, the pipe part 2 is comprised by the hollow cylinder shape which has the center hole connected to the internal space of the accommodating part 1. As shown in FIG. For this reason, when the internal space of the accommodating portion 1 is compressed, the air filling the internal space is basically discharged to the outside through the pipe portion 2 and basically does not leak from other portions. It has become.

  Specifically, the pump-type filling device 100 according to the first embodiment basically includes two separate members such as a body member 10 that forms the housing portion 1 and a head member 20 that forms the pipe portion 2. It is comprised by fitting so that attachment or detachment is possible. As shown in FIG. 2, the body member 10 is formed with an insertion port 16 for filling the internal space with a powdered or granular artificial bone material. On the other hand, as shown in FIG. 1, when the head member 20 is fitted to the body member 10, the head member 20 serves as a cap for closing the insertion port 16. Therefore, when filling the artificial bone material into the body member 10, the head member 20 is removed, and after the desired amount of artificial bone material has been filled, the head member 20 is fitted to the body member 10. In this way, the first embodiment is configured to be repeatedly usable.

  As shown in FIGS. 1 and 2, the body member 10 has a tank portion 11 for forming a substantially sealed internal space. The tank portion 11 is formed of a flexible member (softness and elasticity) such as low-density polyethylene or polypropylene, and serves as a container for storing powdered or granular artificial bone material. At the same time, the tank unit 11 functions as a pump for supplying air pressure for discharging the artificial bone material to the outside through the head member 20. The tank portion 11 is preferably formed of a transparent material or a translucent material so that the remaining amount of the artificial bone material filled in the internal space can be visually confirmed from the outside. For example, the constituent material of the tank part 11 is a certain degree of rigidity and is transparent, so ABS, polycarbonate, polypropylene, polyethylene, polyethylene terephthalate, polystyrene, polyamide, polylactic acid, vinyl chloride, low density polyethylene, ethylene / acetic acid It is appropriate to use a plastic material such as a vinyl copolymer. Moreover, the tank part 11 needs to be elastically deformed by pressing with fingers and function as a pump. For this reason, it is preferable that the tank part 11 consists of a plastic whose wall thickness is 0.15 mm or more and 2.5 mm or less. The shape of the tank part 11 is generally a substantially cylindrical shape with one side closed.

  A male screw part 15 is formed on one end side of the tank part 11, and the male screw part 15 is fitted to the female screw part 25 of the head member 20, so that the body member 10 and the head member 20 can be used as a desorption agent. Can be linked. The male screw part 15 of the tank part 11 is formed with a charging port 16 for filling the internal space with the artificial bone material. The input port 16 is preferably circular, and preferably has an inner diameter of, for example, about 15 mm to 50 mm so as to be easily filled with powdered or granular artificial bone material.

  An intake port 12 is formed on the other end side of the tank portion 11, and a check valve 13 is provided in the intake port 12. The check valve 13 takes in air from the outside when the internal space of the tank portion 11 becomes negative pressure. That is, the check valve 13 allows air to flow into the internal space of the tank portion 11 through the intake port 12, and conversely, air flows out from the internal space of the tank portion 11 to the outside through the intake port 12. It regulates that. The structure of the check valve 13 is not particularly limited, and a known structure that can always keep the gas flow in a certain direction and prevent the backflow can be appropriately employed.

  On the other hand, on one end side of the head member 20, as described above, the female screw portion 25 that fits with the male screw portion 15 of the body member 10 is formed. By fitting the female screw portion 25 of the head member 20 and the male screw portion 15 of the body member 10, both are connected. Further, by connecting the head member 20 to the body member 10, the internal space of the tank portion 11 of the body member 10 is substantially sealed. Further, since the check valve 13 installed at the bottom of the tank 11 does not protrude from the bottom of the tank 11, the filling tool 100 can be placed on a flat surface.

  As shown in FIGS. 1 and 2, the head member 20 has a pipe body 21 that extends long so as to extend from the female screw portion 25. The pipe body 21 is formed in a hollow cylinder shape having a center hole, and the center hole communicates with the internal space of the tank portion 11 of the body member 10 through the female screw portion 25 and the male screw portion 15. Specifically, an inlet 23 connected to the internal space of the tank portion 11 is formed on one end side of the pipe body 21, and an outlet 24 connected to the outside is formed on the other end side. A central hole is provided so as to connect the discharge port 24. For this reason, when the tank part 11 is compressed, the artificial bone material in the tank part 11 rides on the air current and is guided into the central hole of the pipe body 21 and is discharged to the outside through the discharge port 24. The pipe body 21 is preferably cylindrical, but may be triangular, square, or other polygonal cylinders. Also, in bone repair surgery and the like, granular artificial bone materials having a particle size of 0.5 mm to 8 mm are frequently used. For this reason, it is preferable that the internal diameter of the pipe body 21 is in the range of 0.8 mm or more and 25 mm or less so that clogging does not occur when the granular artificial bone material passes. Further, the inner diameter of the pipe body 21 may be constant from the inlet 23 to the outlet 24, but may be designed to gradually widen on the outlet 24 side, for example. Since the inner diameter of the pipe main body 21 expands stepwise or steplessly as it approaches the discharge port 24, the artificial bone material is further less likely to be clogged, and the artificial bone material can be dispersed.

  Further, the pipe body 21 has a bendable portion 22 formed in the middle part of the extending direction thereof. The bendable portion 22 is for directing the discharge port 24 of the pipe body 21 in an arbitrary direction. By bending the pipe body 21 at the bendable portion 22, the bent state of the pipe body 21 can be maintained. For example, the bendable portion 22 is preferably configured so that the bent state of the pipe body 21 is maintained even if the finger is released from the pipe body 21 after the pipe body 21 is bent with a finger. . Further, the bendable portion 22 has a structure that allows the artificial bone material to pass through the center hole even when the pipe body 21 is bent. For this reason, even when the pipe body 21 is bent in the bendable portion 22, the artificial bone material in the tank portion 11 can be discharged to the outside through the pipe body 21. Specifically, the bendable part 22 is preferably a part of the pipe body 21 having a bellows shape. Such a bellows-like bendable part 22 can adopt the same structure as the bent part of the straw, for example.

  The pipe body 21 including the bendable portion 22 is preferably formed of a flexible member (softness and elasticity) such as low density polyethylene or polypropylene. As a result, even if the artificial bone material is clogged inside the pipe body 21, clogging can be easily eliminated by squeezing with a finger. Moreover, it is preferable that the pipe main body 21 is formed of a transparent material or a translucent material so that the state of the artificial bone material introduced into the central hole can be visually confirmed from the outside. For example, the constituent material of the pipe body 21 is a certain degree of rigidity and is transparent, so ABS, polycarbonate, polypropylene, polyethylene, polyethylene terephthalate, polystyrene, polyamide, polylactic acid, vinyl chloride, low density polyethylene, ethylene / acetic acid It is appropriate to use a plastic material such as a vinyl copolymer. The pipe body 21 is preferably made of a plastic having a thickness of 0.15 mm to 2.5 mm.

  Further, the head member 20 has an intermediate storage portion 14 between the pipe body 21 and the female screw portion 25. The intermediate storage part 14 forms a small space having a smaller volume than the internal space of the tank part 11. Specifically, the small space of the intermediate storage unit 14 has a smaller inner diameter than the internal space of the tank unit 11. However, the inner diameter of the small space of the intermediate reservoir 14 is formed larger than the inner diameter of the center hole of the pipe body 21. For this reason, when the artificial bone material in the tank portion 11 is discharged, the artificial bone material is first introduced from the internal space of the tank portion 11 into the small space of the intermediate storage portion 14, and then the small amount of the intermediate storage portion 14. It introduce | transduces into the center hole of the pipe main body 21 via space. The intermediate reservoir 14 is preferably formed of the same material as the pipe body 21. For example, the intermediate storage unit 14 may be made of a transparent material or a translucent material so that the state of the artificial bone material poured into the pipe body 21 from the tank unit 11 can be visually confirmed. In addition, this intermediate storage part 14 is a site | part which belongs to the accommodating part 1 of the filling tool 100 notionally.

  In addition, as shown in FIG. 2, the wall surface connecting the intermediate reservoir 14 and the pipe body 21 is inclined so that the artificial bone material slides down toward the inlet 23 of the pipe body 21. Is preferred. For example, in FIG. 2, the inclination angle attached to the wall surface of the intermediate storage unit 14 is indicated by the symbol θ of a double arrow. As shown in FIG. 2, the inclination angle θ of the wall surface of the intermediate storage portion 14 is preferably, for example, 140 ° to 170 ° with respect to the central axis of the pipe body 21. In the example shown in FIG. 2, the inclination angle θ is set to 150 °. In this way, by providing an inclination to the wall surface connecting the intermediate reservoir 14 and the pipe body 21, the artificial bone material is smoothly introduced from the intermediate reservoir 14 toward the pipe body 21 without causing clogging. .

  3 to 5 show examples of how to use the pump-type filling device 100 according to the first embodiment. First, as shown in FIG. 3, the artificial bone material in the tank part 11 is obtained by gently raising the intake port 12 side with the charging port 16 side of the tank part 11 facing downward and shaking the tank part 11 lightly. It flows into the center hole of the pipe main body 21 via the intermediate reservoir 14. At this time, it is preferable that the pipe body 21 is bent at the bendable portion 22 and the discharge port 24 thereof is maintained upward. Thereby, as shown in the enlarged portion of FIG. 3, the artificial bone material that has flowed into the pipe body 21 is temporarily stored in the bendable portion 22. Since the pipe body 21 is formed of a transparent or translucent flexible material, the amount of the artificial bone material stored in the bendable portion 22 can be confirmed at a glance. Further, when the artificial bone material is clogged in the bendable portion 22, the clogging can be easily eliminated by crushing this portion with a finger. Further, the amount of artificial bone material stored in the bendable portion 22 of the pipe body 21 can be adjusted by adjusting the operation of shaking the tank portion 11. The artificial bone materials stored in the bendable part 22 can be ejected together at the same time. That is, by adjusting the amount of the artificial bone material temporarily stored in the bendable portion 22 of the pipe body 21, the artificial bone material ejected all at once can be controlled to an appropriate amount.

  Subsequently, as shown in FIG. 4, air in the tank unit 11 is discharged to the outside through the pipe body 21 by pressing the peripheral surface of the tank unit 11 by hand to compress the inner space. . At this time, since a desired amount of artificial bone material is temporarily stored in the pipe body 21, the artificial bone material is pushed out together with air by being pushed out by the air flowing into the pipe body 21 from the tank portion 11. To erupt. The discharge amount of the artificial bone material, the flight distance, or the momentum of the ejection can be adjusted by the pressure applied to the tank portion 11. Further, the discharge direction of the artificial bone material can be adjusted by the direction of the discharge port 24 of the pipe body 21. As described above, the pump-type prosthesis 100 according to the present invention can appropriately control the discharge amount of the artificial bone material, the flying distance, the momentum of the ejection, and the discharge direction according to the level of the orthopedic surgeon in charge of surgery. Compared to conventional compensation work using sharp scissors etc., workability is improved and smooth surgery can be promoted.

  Further, as shown in FIG. 5, after the artificial bone material has been ejected once, the pressure applied to the tank part 11 is weakened, and the internal space of the tank part 11 is made negative pressure, whereby the tank part 11 The outside air flows into the tank portion 11 through the check valve 13 provided at the bottom of the tank, and the shape of the tank portion 11 is restored. Thereby, even if it does not attract | suck outside air from the discharge port 24 of the pipe main body 21, outside air can be taken in into the inside of the tank part 11, and the restoration | reconstruction of the tank part 11 is performed easily. Further, when sufficient air is taken into the internal space of the tank portion 11, as shown in FIG. 4, by pressing the tank portion 11 again, the air in the tank portion 11 and the artificial bone material are removed from the pipe body 21. Can be discharged to the outside. Thus, according to the pump type filling device 100 of the present invention, the discharge operation of air and artificial bone material can be continued continuously. For example, by continuously discharging the artificial bone material little by little, it becomes possible to accurately supply the necessary amount of the artificial bone material to the bone defect, and the accuracy of the bone repair operation is improved. Furthermore, after artificial bone material is filled in the bone defect, the pump-type filling device 100 can be used to continuously blow only air to the filling site. By performing such an operation, the initial drying of the artificial bone material can be promoted.

[2. Second Embodiment: Disposable Type Pump Type Compensator]
A second embodiment of the pump-type filling device 100 according to the present invention will be described with reference to FIGS. The second embodiment relates to a disposable type (disposable type) pump-type filling device. The disposable pump-type filling device 100 is preliminarily filled with a predetermined amount of artificial bone material, and after the predetermined amount of artificial bone material is used up, it is scheduled to be discarded without refilling the artificial bone material. Yes. In this sense, it can also be said that the pump-type filling device 100 according to the second embodiment is a prefilled type (a type in which artificial bone material is pre-filled).

  FIG. 6 shows the overall structure of the pump-type filling device 100 according to the second embodiment, and FIG. 7 shows a state where the pump-type filling device 100 is erected on a plane. As shown in FIGS. 6 and 7, the pump-type prosthesis 100 according to the second embodiment includes a housing portion 1 having an internal space for filling a powdered or granular artificial bone material, and the housing. It comprises a pipe part 2 for discharging the artificial bone material filled in the part 1. The internal space of the housing part 1 is substantially sealed. Moreover, the pipe part 2 is comprised by the hollow cylinder shape which has the center hole connected to the internal space of the accommodating part 1. As shown in FIG. For this reason, when the internal space of the accommodating portion 1 is compressed, the air filling the internal space is basically discharged to the outside through the pipe portion 2 and basically does not leak from other portions. It has become. In this respect, the pump-type filling device 100 according to the second embodiment is common to the above-described first embodiment.

  On the other hand, in the pump-type filling device 100 according to the second embodiment, the tank portion 11 constituting the housing portion 1 and the pipe body 21 constituting the pipe portion 2 are integrally molded. That is, the pump-type filling device 100 according to the second embodiment is obtained by molding the tank portion 11 (the housing portion 1) and the pipe body 21 (the pipe portion 2) as one member. The tank portion 11 and the pipe body 21 are formed of a transparent or translucent material having flexibility (softness and elasticity) such as low-density polyethylene and polypropylene, as in the first embodiment. Is preferred.

  The pump-type filling device 100 has an inlet 12 formed on the bottom side of the tank 11, and a check valve 13 is provided at the inlet 12. The check valve 13 allows air to flow into the internal space of the tank portion 11 through the intake port 12 and restricts the discharge of air in the opposite direction. Further, in the second embodiment, the check valve 13 is provided at a position protruding into the internal space of the tank portion 11. More specifically, the tank portion 11 is formed with an inner wall portion 17 extending from the bottom portion into the internal space, and an air inlet 12 is formed at the top portion of the inner wall portion 17. The intake port 12 located at the top of the inner wall 17 is provided with a check valve 13. For example, the length from the bottom of the tank 11 to the top of the inner wall 17 (the intake port 12 and the check valve 13) is preferably about 10 mm to 30 mm.

  The pump-type filling device 100 has a bendable portion 22 in the middle of the pipe body 21. For this reason, the direction of the discharge port 24 can be freely adjusted by bending the pipe body 21 at the bendable portion 22.

  Moreover, as shown in FIG. 6A, in the second embodiment, the tip of the pipe body 21 is closed before the pump-type filling device 100 is used. That is, in the state before use, the pipe body 21 does not have the discharge port 24, and the air in the tank portion 11 and the artificial bone material cannot be produced. In this state, since the inside of the tank part 11 and the pipe main body 21 is completely sealed, the sanitary state of the artificial bone material filled in the tank part 11 in advance can be maintained. On the other hand, as shown in FIG. 6B, when starting to use the pump-type filling device 100, first, the tip end side of the bendable portion 22 of the pipe body 21 is cut, and an outlet port is formed in the pipe body 21. 24 is formed. As a result, the air and the artificial bone material in the tank portion 11 can be discharged through the discharge port 24. In addition, in the state before use shown in FIG. 6A, a cutable portion 18 may be provided on the distal end side of the pipe body 21. The cutable part 18 indicates a position suitable for cutting the pipe body 21. For example, the severable portion 18 may have a structure in which perforations and slits are formed and can be easily cut by hand, or simply a mark (line, point, figure, etc.) is shown, and the person has scissors. The position suitable for cutting | disconnection using etc. may be shown.

  8 to 12 show an example of how to use the pump-type filling device 100 according to the second embodiment. First, as shown in FIG. 8, the tank portion 11 is lifted to place the pipe body 21 on the lower side, and the tank portion 11 is lightly shaken, so that the artificial bone material in the tank portion 11 is transferred to the pipe body 21. Pour into the center hole. At this time, the pipe body 21 is bent by the bendable portion 22 and the discharge port 24 is maintained upward. As a result, the artificial bone material that has flowed into the pipe body 21 is temporarily stored in the bendable portion 22.

  Subsequently, as shown in FIG. 9, by pressing the tank portion 11 with a finger to compress the internal space, the air in the tank portion 11 is discharged to the outside through the pipe body 21. At this time, since a desired amount of artificial bone material is temporarily stored in the pipe body 21, the artificial bone material is pushed out together with air by being pushed out by the air flowing into the pipe body 21 from the tank portion 11. To erupt. The discharge amount of the artificial bone material, the flight distance, or the momentum of the ejection can be adjusted by the pressure applied to the tank portion 11. Moreover, the discharge direction of the artificial bone material can be adjusted by the direction of the discharge port 24 of the pipe body 21.

  In addition, as shown in FIG. 10, after the artificial bone material is ejected once, the pressure applied to the tank part 11 is weakened, and the internal space of the tank part 11 is made negative pressure, whereby the tank part 11 Outside air flows into the inside of the tank portion 11 through the check valve 13 provided in the, and the shape of the tank portion 11 is restored. Thereby, even if it does not attract | suck outside air from the discharge port 24 of the pipe main body 21, outside air can be taken in into the inside of the tank part 11, and the restoration | reconstruction of the tank part 11 is performed easily. Further, when sufficient air is taken into the internal space of the tank portion 11, as shown in FIG. 9, by pressing the tank portion 11 again, the air in the tank portion 11 and the artificial bone material are removed from the pipe body 21. Can be discharged to the outside.

  Here, FIG. 11 shows a preferred use example of the pump-type filling device 100. When repairing a bone defect, for example, the granular artificial bone material is washed with physiological saline, or the granular artificial bone material is supplemented to the bone defect with physiological saline. Some orthopedic surgeons. Therefore, FIG. 11 shows an example of a method of taking physiological saline into the tank portion 11 in the pump-type filling device 100 of the second embodiment. As shown in FIG. 11, first, the prepared physiological saline is put in another container. The pump-type filling device 100 closes the intake port 12 provided on the bottom side of the tank unit 11 with a finger pad in a state where the tank unit 11 is pressed and the internal space is set to a negative pressure. The outside air is prevented from flowing into the tank portion 11. Then, the discharge port 24 at the tip of the pipe body 21 is immersed in physiological saline contained in another container, and the pressure applied to the tank unit 11 is released as it is to restore the tank unit 11. Then, since the inflow of outside air through the air inlet 12 is inhibited, the physiological saline is absorbed from the outlet 24 of the pipe body 21 on the opposite side, and the physiological saline passes through the central hole of the pipe body 21. And is taken into the tank 11. Thereby, in the tank part 11, an artificial bone material can be immersed in physiological saline.

  Further, FIG. 12 shows a state in which the pump-type filling device 100 is disciplined by bringing the bottom of the tank portion 11 into contact with a flat surface in a state where physiological saline is taken into the tank portion 11. As described above, in the second embodiment, the tank portion 11 is formed with the inner wall portion 17 extending from the bottom portion into the internal space, and the inlet 12 and the reverse are formed on the top portion of the inner wall portion 17. A stop valve 13 is formed. For this reason, as shown in FIG. 12, even if the pump-type filling device 100 is erected in a state where physiological saline is taken into the tank portion 11, if the physiological saline is below a predetermined amount, the inlet 12 And the check valve 13 can be positioned above the surface of the physiological saline. Accordingly, by forming the inlet 12 at the top of the inner wall portion 17, even if physiological saline is taken into the tank portion 11, the physiological saline leaks to the outside through the inlet 12. Can be avoided. For this reason, by preparing several pump-type prosthetic devices 100 in which physiological saline has been taken in beforehand and preparing them by leaning on them in a state as shown in FIG. 12, artificial bone materials for surgical operation are prepared. Can be carried out smoothly.

[3. Third embodiment: replayable pump-type filling device]
With reference to FIG. 13, 3rd Embodiment of the pump type filling device 100 which concerns on this invention is described. The third embodiment relates to a refillable type (replaceable type) pump-type filling device. The refillable pump-type filling device 100 can replace the nozzle member 40 constituting the pipe portion 2. For example, the diameter of the discharge port through which the powdery or granular filling material is ejected can be selected according to the application.

  In FIG. 13, the state which decomposed | disassembled the pump type filling device 100 which concerns on 3rd Embodiment into the structural member is shown. As shown in FIG. 13, the pump-type filling device 100 according to the third embodiment includes a housing portion 1 that is filled with a filling material, and a pipe portion 2 that communicates with the housing portion 1. This point is common to the first embodiment and the second embodiment described above. On the other hand, in 3rd Embodiment, the accommodating part 1 of the pump type filling device 100 is comprised from the body member 10 and the cap member 30. FIG. Further, the pipe portion 2 of the pump-type filling device 100 is constituted by a nozzle member 40. The body member 10, the cap member 30, and the nozzle member 40 are detachable independent members, and are configured to be detachable. In this respect, the third embodiment is different from the first and second embodiments described above. Note that when the third embodiment (FIG. 13) is compared with the first embodiment (FIG. 2), the head member 20 described in the first embodiment is different from the cap member 30 and the nozzle in the third embodiment. It can also be considered that it is separated into the member 40. That is, the structure in which the cap member 30 and the nozzle member 40 according to the third embodiment are combined basically has the same function as the head member 20 according to the first embodiment. Hereinafter, a specific configuration of the third embodiment will be described.

  In the third embodiment, the body member 10 constituting the housing portion 1 includes a flexible tank portion 11 that forms a substantially sealed internal space, and a male screw portion 15 formed on the front end side of the tank portion 11. And an insertion port 16 for artificial bone material formed in the male screw portion 15. In the third embodiment, the body member 10 is not provided with an intake port (12) or a check valve (13). For this reason, in the third embodiment, the inlet 16 is the only vent. Of course, the body member 10 may be provided with an intake port (12) and a check valve (13).

  In the third embodiment, the housing portion 1 includes a cap member 30 that is separate from the body member 10. The cap member 30 has a female screw portion 31 that fits with the male screw portion 15 of the body member 10 on one end side, and a male fitting portion 32 that fits with the nozzle member 40 on the other end side. The cap member 30 has a hollow structure extending from one end side to the other end side, and at least powdered or granular artificial bone material is distributed. As shown in FIG. 13, the cap member 30 has a large diameter on the female screw portion 31 side and a small diameter on the male fitting portion 32 side. Thus, the cap member 30 is interposed between the body member 10 and the nozzle member 40 and functions as a joint member for connecting them.

  In the third embodiment, the pipe portion 2 of the pump-type filling device 100 is constituted by a nozzle member 40. The nozzle member 40 has a female fitting portion 41 that fits with the male fitting portion 32 of the cap member 30 on one end side, and a discharge port 24 for discharging the artificial bone material on the other end side. doing. Further, a bellows-like bendable portion 22 is formed in the middle part of the nozzle member 40. The bendable portion 22 is for directing the discharge port 24 of the nozzle member 40 in an arbitrary direction. By bending the nozzle member 40 in the bendable portion 22, the state in which the nozzle member 40 is bent can be maintained. The nozzle member 40 has a hollow structure extending from the inlet 23 on one end side to the outlet on the other end side, and at least powdered or granular artificial bone material circulates.

  In the third embodiment, air holes 42 are formed in the side surface portion of the hollow cylinder in the nozzle member 40. In the example of FIG. 13, the air hole 42 is formed at a position closer to the discharge port 24 than the bendable part 22, but it can also be formed at a position closer to the inlet 23 than the bendable part 22. . The air hole 42 serves as an air inlet for introducing the outside air into the body member 10 after pressing the flexible portion of the body member 10 and discharging the artificial bone material therein to the outside. Function. The diameter of the air hole 42 is basically made smaller than the diameter of the discharge port 24. As a result, when the artificial bone material is discharged, air flows according to Bernoulli's theorem, and a part of the artificial bone material can be prevented from unintentionally leaking from the air hole 42. In addition, when physiological saline or the like is sucked through the discharge port 24 and is introduced into the body member 10, the air provided in the nozzle member 40 is pressed after the body member 10 is pressed and decompressed. What is necessary is just to block the hole 42 with a finger pad. As a result, the inflow of outside air from the air hole 42 is blocked, and as a result, physiological saline or the like can be sucked up through the discharge port 24.

  As described above, in the third embodiment, the nozzle member 40 and the cap member 30 are configured as separate members, and the nozzle member 40 can be freely attached to and detached from the cap member 30. For this reason, as shown in FIG. 13, it is preferable to prepare various types of nozzle members 40 in advance, select an appropriate nozzle member 40 according to the application, and attach it to the cap member 30 for use. . In other words, the various types of nozzle members 40 need only have the same structure of the female fitting portion 41, and other types of nozzle members 40 having different diameters, lengths, shapes, materials, and the like are prepared. Can do.

In the example shown in FIG. 13, a plurality of nozzle members 40 a, 40 b, and 40 c having different diameters of the discharge port 24 are prepared as the nozzle member 40. The first nozzle member 40a has a discharge port 24 of the diameter phi _1, the second nozzle member 40b has a discharge port 24 of the diameter phi _2, the third nozzle member 40c is of a diameter phi ₃ A discharge port 24 is provided. In this way, by preparing a plurality of nozzle members 40a, 40b, and 40c having different diameters, the amount of the artificial bone material to be ejected and the momentum at which the artificial bone material is ejected can be adjusted, or the bone void caused by the defect can be reduced. When the nozzle member 40 is small, it is possible to select and use an appropriate nozzle member 40 in accordance with its application and usage conditions, such as using a nozzle member 40a having a small diameter. For example, the diameters of the various nozzle members 40a, 40b, and 40c increase in the order of φ ₁ , φ ₂ , and φ ₃ (φ ₁ <φ ₂ <φ ₃ ). For example, the diameter φ ₁ is preferably 6 to 8 mm, the diameter φ ₂ is preferably 8 to 10 mm, and the diameter φ ₃ is preferably 10 to 12 mm.

  The various nozzle members 40 may have different characteristics such as the overall length, shape, and material. For example, by preparing a plurality of nozzle members 40 having different lengths, it is possible to select and use one having an appropriate length that reaches the site for bone repair surgery. In addition, for example, by preparing nozzle members 40 having different shapes such as a circular outlet, a flat shape, or a polygonal shape, the diffusion range of the artificial bone material can be adjusted. Also, by preparing a plurality of nozzle members 40 of different materials, it is possible to select and use an appropriate material according to the patient's constitution.

  As mentioned above, in this specification, in order to express the content of this invention, embodiment of this invention was described, referring drawings. However, the present invention is not limited to the above-described embodiment, and modifications and improvements can be added as appropriate to the structure and application of the invention based on the matters described in the present specification.

  In the present invention, the powdery or granular filling material is not limited to the artificial bone material. In addition to the artificial bone material, the pump type filling device of the present invention can be widely used as a powdery or granular filling device such as seasonings such as salt and bait / fertilizer to be given to animals and plants.

  The present invention relates to a prosthetic material for artificial bone material that is used when, for example, artificial bone material is filled in a void of a bone caused by a defect. Therefore, the present invention can be suitably used in the medical device manufacturing industry.

DESCRIPTION OF SYMBOLS 1 ... Accommodating part 2 ... Pipe part 10 ... Body member 11 ... Tank part 12 ... Intake port 13 ... Check valve 14 ... Intermediate storage part 15 ... Male screw part 16 ... Input port 17 ... Inner wall part 18 ... Cuttable part 20 ... Head Member 21 ... Pipe body 22 ... Bendable part 23 ... Inlet 24 ... Discharge port 25 ... Female screw part 30 ... Cap member 31 ... Female screw part 32 ... Male fitting part 40 ... Nozzle member 41 ... Female fitting part 42 ... Air hole 100 ... Pump type filling device

Claims (8)

A housing part (1) having an internal space filled with a powdery or granular filling material, at least partially formed of a flexible material;
A pipe part (2) having a central hole communicating with the internal space of the housing part (1),
The pipe portion (2) has a bendable portion (22) that can maintain a partially bent state, and the filling material can pass through the central hole even in the bent state.
The filling material filled in the internal space is ejected to the outside through the center hole of the pipe portion (2) by pressing the portion formed of the flexible material of the housing portion (1). Pump Formula filling device. The accommodating part (1)
A tank portion (11) forming the internal space;
An air inlet (12) formed in a part of the tank (11);
A check valve (13) provided in the air inlet (12), allowing air to flow into the internal space through the air inlet (12), and restricting the outflow of air from the internal space; The pump-type filling device according to claim 1. The part or all of the said accommodating part (1) is formed with the transparent material or semi-transparent material which can visually recognize the said filling material with which it filled in the said interior space from the exterior. Pump type filling device. The pump-type filling device according to any one of claims 1 to 3, wherein at least the bendable portion (22) of the pipe portion (2) is formed of a flexible material. The accommodating part (1)
A tank portion (11) forming the internal space;
An intermediate reservoir (14) that communicates with the internal space and forms a small space with a smaller volume than the internal space;
The pump-type filling device according to any one of claims 1 to 4, wherein a central hole of the pipe portion (2) communicates with the intermediate storage portion (14). A body member (10) having an input port (16) into which the filling material can be input;
A head member (20) that is separate from the body member (10) and is attached to the body member (10) so as to close the insertion port (16);
The housing part (1) is formed in the body member (10),
The pump-type filling device according to any one of claims 1 to 5, wherein the pipe portion (2) is a reusable type formed on the head member (20). The pump-type filling device according to any one of claims 1 to 5, wherein the housing portion (1) and the pipe portion (2) are a disposable type. The accommodating part (1)
A body member (10) forming the internal space;
A cap member (30) detachably attached to the body member (10),
The pipe part (2)
The pump-type filling device according to any one of claims 1 to 5, comprising a nozzle member (40) detachably attached to the cap member (30).

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