Bone cement filler

Abstract

The bone cement filler comprises a spiral propeller, a connecting pipe, a puncture needle and a three-way valve, the three-way valve is provided with a cavity, a first connector and two second connectors, the top of the three-way valve is provided with an opening, the opening is communicated with the cavity, the cavity is communicated with the first connector and the second connectors, and the first connector and the second connector are communicated with each other. The spiral propeller is connected to the first connector in a threaded screwing mode, the connecting pipe is connected to the second connector in a threaded screwing mode, the puncture needle is connected to the connecting pipe in a threaded screwing mode, and a sealing head is connected into the opening in a threaded screwing mode and used for sealing the opening. Two connecting pipes can be arranged through the three-way valve, each connecting pipe is connected with one puncture needle, and bone cement can be injected into different filling parts of a patient through the two puncture needles at the same time, so that the time for injecting the bone cement into the different filling parts is shortened, and the situation that injection cannot be continued after the bone cement is hardened for a short time is prevented; meanwhile, the pain of the patient can be effectively relieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical instruments, and particularly relates to a bone cement filler. Background Art

[0002] A bone cement filler is a medical instrument, which is mainly used in orthopedic surgeries such as percutaneous vertebroplasty, percutaneous pedicleplasty, and tumor interventional therapy.

[0003] Among them, in the percutaneous vertebroplasty surgery, the doctor will insert the puncture needle on the catheter of the bone cement filler into the vertebral body, and inject high-viscosity bone cement into the vertebral body through the catheter to enhance the mechanical stability of the vertebral body. In tumor interventional therapy, the doctor will insert the puncture needle on the catheter of the bone cement filler into the tumor site and inject the bone cement into the tumor to relieve the pain of the patient and enhance the stability of the tumor site.

[0004] The bone cement filler plays an important role in orthopedic surgeries, can enhance the stability and support of bones, relieve the pain of patients, and promote recovery. At the same time, the surgery using the bone cement filler has the advantages of minimally invasive and quick recovery, making it an essential instrument in orthopedic surgeries.

[0005] The prior art discloses a utility model patent with the name of a bone cement filler (authorization announcement number: CN 209136832 U). This bone cement filler can quickly and conveniently inject bone cement into the sleeve of the screw propeller, greatly improving the efficiency of the surgery and greatly reducing the waste of bone cement.

[0006] The current catheter of the bone cement filler is single-headed and can only be injected into a single puncture needle. How to inject bone cement into two puncture needles simultaneously using a bone cement filler is a technical problem that needs to be solved by those skilled in the art. Summary of the Utility Model

[0007] The purpose of the utility model is to solve the above-mentioned technical problems existing in the prior art, and provide a bone cement filler. Through a three-way valve, two connecting pipes can be set, each connecting pipe is connected to a puncture needle, and bone cement can be injected into different filling parts of the patient simultaneously using two puncture needles, reducing the time for injecting bone cement into different filling parts, preventing the bone cement from hardening in a short time and being unable to be injected continuously, and effectively relieving the pain of the patient at the same time.

[0008] To solve the above technical problems, the utility model adopts the following technical solutions:

[0009] A bone cement filler, comprising a screw propeller, a connecting pipe and a puncture needle, characterized in that: it further comprises a three-way valve, the three-way valve is provided with a cavity, a single connector one and two connectors two, the top of the three-way valve is provided with an opening, the opening is communicated with the cavity, the cavity is communicated with the connector one and the connector two, the screw propeller is threadedly connected to the connector one, the connecting pipe is threadedly connected to the connector two, the puncture needle is threadedly connected to the connecting pipe, and a sealing head is threadedly connected in the opening, and the sealing head is used for sealing the opening.

[0010] Further, a connecting shaft is provided at the bottom of the three-way valve, the connecting shaft is provided with a through hole one, and a connecting rope is inserted through the through hole one. When the operation is completed, the screw propeller is removed from the connector one of the three-way valve, and at the same time the connecting pipe is removed from the connector two of the three-way valve, and then the sealing head is unscrewed from the opening of the three-way valve, and then the three-way valve is cleaned. After the cleaning is completed, the connecting rope is tied to the fixing member so that the opening of the three-way valve faces downward, and the cleaning water of the three-way valve is discharged to make the three-way valve clean.

[0011] Further, a bottom plate is provided at the bottom of the connecting shaft, the cross-sectional area of the bottom plate is larger than the cross-sectional area of the connecting shaft, and the through hole one is provided in the area between the bottom plate and the bottom of the three-way valve, so that the through hole one is hidden, and the bottom plate is provided with a through hole two, and the connecting rope passes through the through hole two, increasing the stability of the connection of the connecting rope at the bottom of the three-way valve and reducing the risk of the connecting rope coming out from the bottom of the three-way valve.

[0012] Further, a reinforcing rib one is fixed between the connecting shaft and the bottom of the three-way valve, increasing the firmness of the connection between the connecting shaft and the three-way valve.

[0013] Further, a plurality of handle parts are fixed on the sealing head, and the angles between adjacent two handle parts are the same, which is convenient for applying force to the sealing head and can quickly install or disassemble the sealing head.

[0014] Further, a reinforcing rib two is fixed between adjacent two handle parts, and the reinforcing rib two is fixed on the side surface of the sealing head, increasing the strength of the handle part.

[0015] Further, a reinforcing rib three is fixed between the connector one and the three-way valve, increasing the firmness of the connection between the connector one and the three-way valve.

[0016] Further, a reinforcing rib four is fixed between the connector two and the three-way valve, increasing the firmness of the connection between the connector two and the three-way valve.

[0017] Further, it also includes an end cap and a plug. When cleaning the three-way valve, the screw propeller is removed from the first connector, and the puncture needle is removed from the second connector. After the cleaning of the three-way valve is completed, the cleaning water of the three-way valve is drained. After the three-way valve is dried, the plug is screwed and connected to the first connector, and at the same time, the end cap is screwed and connected to the second connector. Then, the sealing head is screwed and connected to the opening of the three-way valve, which can seal and preserve the three-way valve, ensure the inside of the three-way valve is clean, and is used for the next bone cement injection.

[0018] Further, the outer side of the end cap is provided with a cut surface, so that the outer side of the end cap forms an edge, increasing the friction force.

[0019] Due to the adoption of the above technical solutions, the present utility model has the following beneficial effects:

[0020] When injecting bone cement into two filling parts of a patient, the present utility model screws the screw propeller onto the first connector, then screws the two connecting pipes onto the corresponding second connectors respectively, then screws the puncture needle onto the connecting pipe, and then inserts the two puncture needles into the two filling parts of the patient. Then, the bone cement is injected by using the screw propeller. The bone cement passes through the three-way valve into the two connecting pipes and is then injected into the filling parts of the patient through the puncture needles. The present utility model can simultaneously use two puncture needles to inject bone cement into different filling parts of the patient, reducing the time for injecting bone cement into different filling parts, preventing the bone cement from hardening in a short time and being unable to continue injection, and effectively alleviating the pain of the patient. Description of the Drawings

[0021] The following further describes the present utility model with reference to the drawings:

[0022] Figure 1 is a schematic structural view of the bone cement filler of the present utility model;

[0023] Figure 2 is a schematic structural view of the connecting pipe being screwed and connected to the second connector in the present utility model;

[0024] Figure 3 is a schematic structural view of the three-way valve in the present utility model;

[0025] Figure 4 is a schematic structural view when the connecting rope is taken out from the three-way valve in the present utility model;

[0026] Figure 5 is Figure 4 a schematic enlarged view of the structure at A in

[0027] Figure 6 is a schematic structural view of the connecting pipe in the present utility model;

[0028] Figure 7Schematic structural diagram of the end cap and the plug installed on the three-way valve in the present utility model;

[0029] Figure 8 Schematic structural diagram of the end cap in the present utility model;

[0030] Figure 9 Schematic structural diagram of the plug in the present utility model;

[0031] Figure 10 Schematic structural diagram when two puncture needles are used simultaneously in the present utility model.

[0032] In the figure, 1 - screw propeller; 2 - connecting pipe; 3 - puncture needle; 4 - three-way valve; 5 - cavity; 6 - opening; 7 - connecting head one; 8 - connecting head two; 9 - sealing head; 10 - connecting shaft; 11 - bottom plate; 12 - through hole one; 13 - connecting rope; 14 - through hole two; 15 - stiffening rib one; 16 - handle part; 17 - stiffening rib two; 18 - stiffening rib four; 19 - stiffening rib three; 20 - end cap; 21 - section plane; 22 - plug; 23 - edge; 24 - notch. Specific implementation manner

[0033] As Figures 1 to 10 shown, a bone cement filler in the present utility model includes a screw propeller 1, a connecting pipe 2, a puncture needle 3 and a three-way valve 4. The screw propeller 1, the connecting pipe 2 and the puncture needle 3 are prior arts. For details, refer to the utility model patent with the name of a bone cement filler (authorization announcement number: CN 209136832 U).

[0034] The three-way valve 4 is provided with a cavity 5, a single connecting head one 7 and two connecting head twos 8. A stiffening rib three 19 is fixed between the connecting head one 7 and the three-way valve 4 to increase the firmness of the connection between the connecting head one 7 and the three-way valve 4. A stiffening rib four 18 is fixed between the connecting head two 8 and the three-way valve 4 to increase the firmness of the connection between the connecting head two 8 and the three-way valve 4. An opening 6 is provided at the top of the three-way valve 4. The opening 6 is communicated with the cavity 5. The cavity 5 is communicated with the connecting head one 7 and the connecting head two 8. The screw propeller 1 is threadedly connected to the connecting head one 7, the connecting pipe 2 is threadedly connected to the connecting head two 8, and the puncture needle 3 is threadedly connected to the connecting pipe 2. The puncture needle 3 is used to pierce into the filling part of the patient. The screw propeller 1 injects bone cement, and the bone cement passes through the three-way valve 4 into the two connecting pipes 2, and then is injected into the filling part of the patient through the puncture needle 3.

[0035] A sealing head 9 is screwed and connected to the opening 6, and the sealing head 9 is used to seal the opening 6. Three handle parts 16 are fixed to the sealing head 9. The number of the handle parts 16 is not limited to three, and the angles between adjacent two handle parts 16 are the same, which is convenient for applying force to the sealing head 9 and can quickly install or disassemble the sealing head 9. A second stiffening rib 17 is fixed between adjacent two handle parts 16, and the second stiffening rib 17 is fixed on the side surface of the sealing head 9 to increase the strength of the handle parts 16.

[0036] A connecting shaft 10 is provided at the bottom of the three-way valve 4, and a first stiffening rib 15 is fixed between the connecting shaft 10 and the bottom of the three-way valve 4 to increase the firmness of the connection between the connecting shaft 10 and the three-way valve 4. The connecting shaft 10 is provided with a through hole one 12 penetrating through the left and right. A connecting rope 13 is penetrated through the through hole one 12. After the operation is completed, the screw propeller 1 is removed from the first connecting head 7 of the three-way valve 4, and at the same time the connecting pipe 2 is removed from the second connecting head 8 of the three-way valve 4. Then the sealing head 9 is unscrewed from the opening 6 of the three-way valve 4, and then the three-way valve 4 is cleaned. After the cleaning is completed, the connecting rope 13 is tied to a fixing member, so that the opening 6 of the three-way valve 4 is arranged downward, the cleaning water of the three-way valve 4 is discharged, and the three-way valve 4 is dried, so that the inside of the three-way valve 4 is clean.

[0037] A cylindrical bottom plate 11 is provided at the bottom of the connecting shaft 10. The cross-sectional area of the bottom plate 11 is larger than that of the connecting shaft 10. The through hole one 12 is arranged in the area between the bottom plate 11 and the bottom of the three-way valve 4, so that the through hole one 12 is hidden. The bottom plate 11 is provided with a through hole two 14, and the connecting rope 13 passes through the through hole two 14, which increases the stability of the connection of the connecting rope 13 at the bottom of the three-way valve 4 and reduces the risk of the connecting rope 13 coming out from the bottom of the three-way valve 4.

[0038] In order to reduce the entry of external dust into the inside of the three-way valve 4, the present utility model designs an end cover 20 and a plug 22. When the three-way valve 4 is cleaned, the screw propeller 1 is removed from the first connecting head 7, and the puncture needle 3 is removed from the second connecting head 8. After the cleaning of the three-way valve 4 is completed, the cleaning water of the three-way valve 4 is discharged. When the drying of the three-way valve 4 is completed, the plug 22 is screwed and connected to the first connecting head 7, and at the same time the end cover 20 is screwed and connected to the second connecting head 8. Then the sealing head 9 is screwed and connected to the opening 6 of the three-way valve 4, which can seal and store the three-way valve 4 to ensure that the inside of the three-way valve 4 is clean for the next bone cement injection.

[0039] A cut surface 21 is provided on the outer side of the end cover 20, so that an edge 23 is formed on the outer side of the end cover 20 to increase the friction force and facilitate the rotation of the end cover 20. At the same time, a notch 24 is provided on the outer side of the plug 22 to facilitate the rotation of the plug 22.

[0040] The above are only specific embodiments of the present utility model, but the technical features of the present utility model are not limited thereto. Any simple changes, equivalent substitutions or modifications made on the basis of the present utility model to solve substantially the same technical problems and achieve substantially the same technical effects are all covered by the protection scope of the present utility model.

Claims

1. A bone cement filler, comprising a screw propeller, a connecting tube and a puncture needle, characterized in that: It further includes a three-way valve, which is provided with a cavity, a single connector one, and two connectors two. The top of the three-way valve is provided with an opening, which is communicated with the cavity. The cavity is communicated with the connector one and the connector two. The screw propeller is threadedly connected to the connector one, the connecting pipe is threadedly connected to the connector two, the puncture needle is threadedly connected to the connecting pipe, and a sealing head is threadedly connected in the opening. The sealing head is used to seal the opening.

2. The bone cement filler according to claim 1, characterized in that: The bottom of the three-way valve is provided with a connecting shaft, and the connecting shaft is provided with a through hole one, and a connecting rope is passed through the through hole one.

3. The bone cement filler according to claim 2, wherein: The bottom of the connecting shaft is provided with a bottom plate, and the cross-sectional area of the bottom plate is larger than that of the connecting shaft. The through hole one is arranged in the area between the bottom plate and the bottom of the three-way valve. The bottom plate is provided with a through hole two, and the connecting rope passes through the through hole two.

4. The bone cement filler according to claim 2, characterized in that: A stiffening rib one is fixed between the connecting shaft and the bottom of the three-way valve.

5. The bone cement filler according to claim 1, characterized in that: A number of handle parts are fixed to the sealing head, and the angles between adjacent two handle parts are the same.

6. The bone cement filler according to claim 5, wherein: A stiffening rib two is fixed between adjacent two handle parts, and the stiffening rib two is fixed on the side surface of the sealing head.

7. The bone cement filler according to claim 1, characterized in that: A stiffening rib three is fixed between the connector one and the three-way valve.

8. The bone cement filler according to claim 1, characterized in that: A stiffening rib four is fixed between the connector two and the three-way valve.

9. The bone cement filler according to claim 1, characterized in that: It further includes an end cap and a plug; when the screw propeller is removed from the connector one, the plug is threadedly connected in the connector one; when the puncture needle is removed from the connector two, the end cap is threadedly connected to the connector two.

10. The bone cement filler according to claim 9, wherein: The outer side of the end cap is provided with a cut surface, so that an edge is formed on the outer side of the end cap.

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