Improved bone cement propelling instrument

Abstract

The utility model discloses an improved bone cement propelling instrument, which comprises a bone cement propelling part, a sealing cover, a propelling rod and a propelling head, and is characterized in that the bone cement propelling part comprises a propelling tube, a sealing cover, a propelling rod and a propelling head; the middle of one end of the propelling pipe is in threaded connection with a sealing cover, one end of the propelling rod is movably connected into the middle of the propelling pipe in a damping mode, the other end of the propelling rod penetrates and extends out of the middle of the sealing cover, and the propelling head is fixedly connected to the middle of the other end of the propelling rod. The autonomous locking part comprises a rubber ring sleeve, a movable spring, a pressure sensor, an electric push rod and a locking ring; movable springs are fixedly connected to the inner wall of the rubber ring sleeve at equal intervals, one ends of the movable springs are fixed to the outer surface of a pressure sensor, the pressure sensor is embedded into the middle of the outer surface of the propelling head, the electric push rod is connected into one side of the outer surface of the sealing cover in a penetrating mode, and a locking ring is fixedly connected to the outer edge of one side of the output end of the electric push rod. According to the utility model, the bone cement can be prevented from being discharged accidentally to cause resource waste and increase cost.

Description

Technical Field

[0001] The utility model relates to the technical field of bone cement, in particular to an improved bone cement pushing device. Background Art

[0002] Bone cement is a self-setting biomaterial, mainly used to fill the gap between bone and implant or bone cavity in orthopedic surgery to provide immediate stability and support. Bone cement advancement machine is a tool specially used in orthopedic surgery to inject bone cement into human bones.

[0003] Existing bone cement pushing devices discharge bone cement through a discharge head by exerting force on a piston so as to push it into the human skeleton. However, the pushing part of a general bone cement pushing machine can push the bone cement at will after applying force, lacks an autonomous locking structure, and is prone to misoperation after being subjected to force, resulting in waste of bone cement and increased costs. Therefore, a bone cement pushing device with an autonomous locking structure is provided to improve the use effect. Utility Model Content

[0004] The purpose of the utility model is to provide an improved bone cement pushing device to solve the problem raised in the above background technology that the existing bone cement pushing devices discharge bone cement through a discharge head by applying force to a piston to push the bone cement into the human skeleton, but the pushing part of the general bone cement pushing machine can push the bone cement at will after applying force, lacks an independent locking structure, and is prone to misoperation after being subjected to force, resulting in waste of bone cement and increased costs.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model is an improved bone cement pushing device, comprising:

[0007] A bone cement propulsion unit, the bone cement propulsion unit comprising a propulsion tube, a sealing cover, a propulsion rod, and a propulsion head; the sealing cover is threadedly connected to the middle of one end of the propulsion tube, one end of the propulsion rod is dampingly movably connected to the middle of the propulsion tube, and the other end extends through the middle of the sealing cover, and the propulsion head is fixedly connected to the middle of the other end of the propulsion rod;

[0008] An autonomous locking part, which includes a rubber ring sleeve, a movable spring, a pressure sensor, an electric push rod, and a locking ring; the inner wall of the rubber ring sleeve is equidistantly fixedly connected with a movable spring, and one end of the movable spring is fixed to the outer surface of the pressure sensor, the pressure sensor is embedded in the middle of the outer surface of the push head, the electric push rod is connected through one side of the outer surface of the sealing cover, and the locking ring is fixedly connected to the outer edge of one side of the output end of the electric push rod.

[0009] Furthermore, an opening is formed on the outer surface of the push rod on a side opposite to the locking ring, and the locking ring extends into the opening.

[0010] Furthermore, the built-in control end of the pressure sensor is wirelessly connected to the electric push rod, and a power supply compartment is fixedly connected to one side of the pressure sensor, and the output end of the power supply compartment is electrically connected to the input end of the pressure sensor through a wire.

[0011] Furthermore, the bone cement advancement part also includes a joint, a connecting pipe, and a discharge head; the joint is connected to the middle part of one end of the advancement tube, and one end of the connecting pipe is threadedly connected to the joint, and the other end of the connecting pipe is threadedly connected to the discharge head.

[0012] Furthermore, one end of the connecting pipe is configured as a hollow straight tube, and the other end is configured as a hollow arc.

[0013] Furthermore, it also includes a locking alignment part, which includes an infrared ranging sensor and a buzzer; the infrared ranging sensor is embedded and connected in the middle of one side of the output end of the electric push rod, and the buzzer is sleeved and connected to one end of the outer surface of the electric push rod, and the built-in control end of the infrared ranging sensor is wirelessly connected to the buzzer.

[0014] Compared with the prior art, the advantages of the present invention are:

[0015] First, the utility model sets a pressure sensor on the middle part of the outer surface of the push head, and is connected with a rubber ring sleeve through a movable spring. By utilizing the elastic deformability of the rubber ring sleeve, when the push head is grasped and applied with a force for pushing the bone cement, the pressure sensor is stressed, and when the bone cement is not pushed, no force is applied to the rubber ring sleeve, that is, the pressure sensor is not stressed, and an internal thrust can be applied to the output end through a controlled electric push rod to extend the locking ring into the opening on the push rod, thereby forming an autonomous locking, which can prevent the bone cement from being accidentally discharged, causing a waste of resources and increasing costs;

[0016] 2. Based on the above beneficial effects, when the electric push rod pushes the locking ring into the opening, the position can be determined by the infrared ranging sensor. When one end inside the opening is opposite to the locking ring, the infrared ranging sensor is at the correct measuring distance, and vice versa. The controlled buzzer will sound an alarm to correctly reset the push rod, thereby improving the structural applicability and functionality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 This is the appearance diagram of the utility model;

[0019] Figure 2 For the utility model Figure 1 Enlarged view of point A in the middle;

[0020] Figure 3 This is the installation position diagram of the pressure sensor of the utility model;

[0021] Figure 4 This is a diagram of the installation position of the locking ring of the utility model;

[0022] Figure 5 For the utility model Figure 4 Enlarged view of point B in the middle.

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0024] 11. Propelling tube; 12. Sealing cover; 13. Propelling rod; 14. Propelling head; 15. Connector; 16. Connecting pipe; 17. Discharging head; 21. Rubber ring; 22. Movable spring; 23. Pressure sensor; 24. Electric push rod; 25. Locking ring; 26. Power supply compartment; 31. Infrared distance sensor; 32. Buzzer. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific implementation methods disclosed below.

[0027] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0028] See also Figure 1-5 As shown, this embodiment is an improved bone cement pushing device, comprising:

[0029] The bone cement advancing part includes an advancing tube 11, a sealing cover 12, an advancing rod 13, and an advancing head 14; the sealing cover 12 is threadedly connected to the middle of one end of the advancing tube 11, and one end of the advancing rod 13 is damped and movably connected to the middle of the advancing tube 11, and the other end extends through the middle of the sealing cover 12, and the advancing head 14 is fixedly connected to the middle of the other end of the advancing rod 13;

[0030] The pushing tube 11 can store the bone cement to be pushed, and by applying force to the pushing head 14, after acting on the pushing rod 13, the bone cement can be pushed forward to be injected into the human bone, and the sealing cover 12 seals one end of the pushing tube 11;

[0031] The bone cement pushing part also includes a joint 15, a pipe 16, and a discharge head 17; the joint 15 is connected to the middle of one end of the pushing tube 11, and one end of the pipe 16 is threadedly connected to the joint 15, and the other end of the pipe 16 is threadedly connected to the discharge head 17;

[0032] The joint 15 connects the connecting pipe 16 and the pushing pipe 11, and is used to promote the flow of bone cement, and discharge it through the discharge head 17 to be injected into the human bone;

[0033] One end of the pipe 16 is in a hollow straight tube shape, and the other end is in a hollow arc shape;

[0034] Autonomous locking part, which includes a rubber ring sleeve 21, a movable spring 22, a pressure sensor 23, an electric push rod 24, and a locking ring 25; the inner wall of the rubber ring sleeve 21 is equidistantly fixedly connected with the movable spring 22, and one end of the movable spring 22 is fixed to the outer surface of the pressure sensor 23, the pressure sensor 23 is embedded in the middle of the outer surface of the push head 14, the electric push rod 24 is connected to one side of the outer surface of the sealing cover 12, and the locking ring 25 is fixedly connected to the outer edge of one side of the output end of the electric push rod 24;

[0035] An opening is formed on the outer surface of the push rod 13 on a side opposite to the locking ring 25, and the locking ring 25 extends into the opening;

[0036] The rubber ring sleeve 21 is installed on the movable spring 22, and can exert force on the movable spring 22 through deformation, and the force is received by the pressure sensor 23, so that the locking ring 25 is exerted with a pushing force through the controlled electric push rod 24, and after extending into the opening, the bone cement pushing device can be locked autonomously;

[0037] The built-in control end of the pressure sensor 23 is wirelessly connected to the electric push rod 24, and a power supply compartment 26 is fixedly connected to one side of the pressure sensor 23, and the output end of the power supply compartment 26 is electrically connected to the input end of the pressure sensor 23 through a wire;

[0038] The wireless linear connection is used to control the electric push rod 24, and the power supply compartment 26 supplies power to the pressure sensor 23;

[0039] Working principle: The structure of the push head 14 is controlled, and the push rod 13 is pushed inward, so that the bone cement in the push tube 11 is pushed forward, so that the bone cement flows to the discharge head 17 through the joint 15 and the pipe 16, and is injected into the human bone;

[0040] When the push head 14 is controlled, the force also acts on the rubber ring 21. At this time, the movable spring 22 is compressed after being stressed and acts on the pressure sensor 23. The pressure sensor 23 is stressed. After the bone cement is pushed and injected into the human bone, no force is applied to the push head 14, and the movable spring 22 recovers its deformation and does not act on the pressure sensor 23. The pressure sensor 23 is not stressed. The controlled electric push rod 24 can apply a pushing force to the locking ring 25, so as to extend into the opening to autonomously lock the bone cement pusher.

[0041] This solution can avoid accidental excretion of bone cement, resulting in waste of resources and increased costs.

[0042] See also Figure 1-5 As shown, this embodiment is based on the above-mentioned embodiment 1 and further includes a locking alignment part, which includes an infrared distance sensor 31 and a buzzer 32; the infrared distance sensor 31 is embedded in the middle of one side of the output end of the electric push rod 24, and the buzzer 32 is sleeved and connected to one end of the outer surface of the electric push rod 24, and the built-in control end of the infrared distance sensor 31 is wirelessly connected to the buzzer 32;

[0043] The infrared distance sensor 31 is used to correctly detect the relative distance between the opening and the locking ring 25, so as to accurately determine the position extension of the locking ring 25, and the buzzer 32 is used to give a reminder when the position is inaccurate;

[0044] Working principle: In the above-mentioned process of autonomously locking the bone cement pushing instrument by the locking ring 25 via the electric push rod 24, the accurate position can be determined by the infrared distance sensor 31, that is, when the opening is opposite to the infrared distance sensor 31, the measured distance is the accurate alignment distance, otherwise, a warning is given by the controlled buzzer 32, so that the opening can be adjusted manually to be opposite to the infrared distance sensor 31;

[0045] This solution can correctly reset and lock the push rod 13, thereby improving the structural applicability and functionality.

[0046] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. An improved bone cement pushing device, characterized in that: include: A bone cement propulsion unit, the bone cement propulsion unit comprising a propulsion tube (11), a sealing cover (12), a propulsion rod (13), and a propulsion head (14); the sealing cover (12) is threadedly connected to the middle portion of one end of the propulsion tube (11), one end of the propulsion rod (13) is damped and movably connected to the middle portion of the propulsion tube (11), and the other end of the propulsion rod (13) extends through the middle portion of the sealing cover (12), and the propulsion head (14) is fixedly connected to the middle portion of the other end of the propulsion rod (13); An autonomous locking portion, the autonomous locking portion comprising a rubber ring sleeve (21), a movable spring (22), a pressure sensor (23), an electric push rod (24), and a locking ring (25); the inner wall of the rubber ring sleeve (21) is fixedly connected with the movable spring (22) at equal intervals, and one end of the movable spring (22) is fixed to the outer surface of the pressure sensor (23), the pressure sensor (23) is embedded in the middle of the outer surface of the push head (14), the electric push rod (24) is connected to one side of the outer surface of the sealing cover (12), and the locking ring (25) is fixedly connected to the outer edge of one side of the output end of the electric push rod (24).

2. The improved bone cement pushing device according to claim 1, characterized in that: An opening is provided on the outer surface of the push rod (13) on a side opposite to the locking ring (25), and the locking ring (25) extends into the opening.

3. The improved bone cement pushing device according to claim 1, characterized in that: The built-in control end of the pressure sensor (23) is wirelessly connected to the electric push rod (24), and a power supply compartment (26) is fixedly connected to one side of the pressure sensor (23), and the output end of the power supply compartment (26) is electrically connected to the input end of the pressure sensor (23) via a wire.

4. The improved bone cement pushing device according to claim 1, characterized in that: The bone cement advancing portion further comprises a joint (15), a connecting pipe (16), and a discharge head (17); the joint (15) is connected to the middle portion of one end of the advancing tube (11), one end of the connecting pipe (16) is threadedly connected to the joint (15), and the other end of the connecting pipe (16) is threadedly connected to the discharge head (17).

5. The improved bone cement pushing device according to claim 4, characterized in that: The connecting pipe (16) is configured in a hollow straight tube shape at one end and in a hollow arc shape at the other end.

6. The improved bone cement pushing device according to claim 1, characterized in that: It also includes a locking alignment part, which includes an infrared distance sensor (31) and a buzzer (32); the infrared distance sensor (31) is embedded in the middle of one side of the output end of the electric push rod (24), and the buzzer (32) is sleeved and connected to one end of the outer surface of the electric push rod (24); the built-in control end of the infrared distance sensor (31) and the buzzer (32) are wirelessly connected.

Images