Artificial bone slurry blending injection kit for skull base reconstruction
By designing an artificial bone paste mixing injection kit for skull base reconstruction, the problem of easy contamination when mixed with distilled water in the prior art is solved, and the function of sealing mixing and injecting into the skull base area is realized, ensuring the convenience of operation and the cleanliness of the material.
Patent Information
- Application Number
- CN202421708368.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-18
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-07-18
AI Technical Summary
In the prior art, the mixing of artificial bone meal and distilled water needs to be carried out in a sterile environment, but due to the long-term contact of the liquid, it is easy to cause material contamination, and there is a lack of medical kits that have the functions of taking, sealing and mixing and injecting into the skull base area.
An artificial bone paste mixing injection kit for skull base reconstruction is designed, including a funnel, a first injector, a second injector and an injection catheter, through a removable first piston and a removable connected second injector head end, sealing mixing of bone meal and distilled water is achieved, and the mixture is injected into the skull base area through an injection catheter.
This kit can achieve sealing mixing of bone meal and distilled water and injecting skull base reconstruction materials in a sterile environment, making it easy to operate and avoid contamination of skull base reconstruction materials.
Smart Images
Figure CN222917676U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical devices, in particular to an artificial bone paste mixing and injection kit for skull base reconstruction. Background Art
[0002] In medical treatment, it is often necessary to mix a matrix material with a liquid and inject it into a specific part of a patient. For example: in the medical treatment of endoscopic skull base bone reconstruction, bone powder and distilled water need to be fully mixed in a sterile environment, and then the mixed fluid is injected into the skull base bone defect area to achieve skull base bone reconstruction. In the prior art, the mixing of artificial bone powder and distilled water usually needs to be carried out in the air. When mixing and stirring, the liquid contacts the air for a long time, which easily causes the material to be contaminated. However, there is currently a lack of a medical kit that combines the functions of taking, sealing and mixing bone powder and distilled water, and injecting into the skull base area. Summary of the Utility Model
[0003] The purpose of the utility model is to provide an artificial bone paste mixing and injection kit for skull base reconstruction, which can realize the taking, mixing of bone powder and distilled water, and the injection of skull base reconstruction materials, is convenient to operate, and avoids the contamination of skull base reconstruction materials.
[0004] In a first aspect, the artificial bone paste mixing and injection kit for skull base reconstruction provided by the utility model includes: a funnel, a first syringe, a second syringe and an injection catheter; the first syringe has a detachable first piston, and a filling port for assembling the funnel is formed in a state where the first piston is removed; the head end of the second syringe is adapted to and detachably connected to the head end of the first syringe; and one of the head end of the second syringe and the head end of the first syringe is adapted to and detachably connected to the injection catheter.
[0005] In combination with the first aspect, the utility model provides a first possible implementation manner of the first aspect, wherein the head end of the first syringe has a detachably connected first plug.
[0006] In combination with the first possible implementation manner of the first aspect, the utility model provides a second possible implementation manner of the first aspect, wherein the artificial bone paste mixing and injection kit for skull base reconstruction further includes a syringe, and the syringe has a detachable needle for extending into the distilled water bottle.
[0007] In combination with the second possible implementation manner of the first aspect, the utility model provides a third possible implementation manner of the first aspect, wherein in a state where the needle is removed, the head end of the syringe is adapted to the head end of the second syringe.
[0008] In combination with the first aspect, the utility model provides a fourth possible implementation of the first aspect, wherein the head end of the first syringe has a first internally threaded sleeve and a first infusion tube; the first internally threaded sleeve surrounds the first infusion tube, and the first internally threaded sleeve is coaxial with the first infusion tube; the head end of the second syringe and the injection catheter are both adapted to the first internally threaded sleeve.
[0009] In combination with the fourth possible implementation of the first aspect, the utility model provides a fifth possible implementation of the first aspect, wherein the first infusion tube extends to the outside of the first internal threaded sleeve; and the outer diameter of the first infusion tube decreases from the end close to the first piston to the end far from the first piston.
[0010] In combination with the fourth possible implementation of the first aspect, the utility model provides a sixth possible implementation of the first aspect, wherein the injection catheter comprises: a terminal portion and a catheter portion connected to the terminal portion, and the terminal portion is adapted to the head end of the first injection pusher.
[0011] In combination with the sixth possible implementation of the first aspect, the utility model provides a seventh possible implementation of the first aspect, wherein the end portion is connected to a hand-held portion radially extended along the catheter portion.
[0012] In combination with the sixth possible implementation of the first aspect, the utility model provides an eighth possible implementation of the first aspect, wherein the end of the end portion facing away from the catheter portion has a convex ring portion, and the convex ring portion is adapted to the first internal threaded sleeve.
[0013] In combination with the eighth possible implementation of the first aspect, the utility model provides a ninth possible implementation of the first aspect, wherein, when the convex ring portion is cooperatively connected with the first internal threaded sleeve, the first infusion tube is interference-fitted in the catheter portion.
[0014] The embodiment of the utility model brings the following beneficial effects: the first injector has a detachable first piston, and a filling port for assembling a funnel is formed when the first piston is removed, the head end of the second injector is adapted to and detachably connected with the head end of the first injector, and the head end of the second injector is adapted to and detachably connected with an injection catheter, so that sealed mixing of bone powder and distilled water can be achieved when the ends of the first injector and the second injector are docked, and the injection catheter is installed after mixing to achieve injection of skull base reconstruction material, which is easy to operate and avoids contamination of the skull base reconstruction material.
[0015] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the related art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the related art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0017] Figure 1 Explosion diagram of the artificial bone paste mixing and injection kit for skull base reconstruction provided by the embodiment of the present invention;
[0018] Figure 2 Schematic diagram of the first syringe of the artificial bone paste mixing and injection kit for skull base reconstruction provided by the embodiment of the present invention after removing the first piston;
[0019] Figure 3 Schematic diagram of the first syringe and the second syringe of the artificial bone paste mixing and injection kit for skull base reconstruction provided by the embodiment of the present invention in the docking state;
[0020] Figure 4 Schematic diagram of the first syringe and the injection catheter of the artificial bone paste mixing and injection kit for skull base reconstruction provided by the embodiment of the present invention in the docking state;
[0021] Figure 5 Cross-sectional view of the first syringe of the artificial bone paste mixing and injection kit for skull base reconstruction provided by the embodiment of the present invention;
[0022] Figure 6 Schematic diagram of the injection catheter of the artificial bone paste mixing and injection kit for skull base reconstruction provided by the embodiment of the present invention.
[0023] Icon: 100 - funnel; 200 - first syringe; 201 - first internal thread sleeve; 202 - first infusion tube; 203 - filling port; 210 - first piston; 300 - second syringe; 400 - injection catheter; 410 - end head; 420 - catheter part; 430 - holding part; 440 - convex ring part; 500 - first plug; 600 - syringe. Specific embodiments
[0024] The following will clearly and completely describe the technical solutions of the present invention with reference to the drawings. Obviously, the described embodiments are some embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.
[0025] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used to describe name differences and cannot be understood as indicating or implying relative importance. For physical quantities in the formula, if not separately marked, they should be understood as the basic quantities of the basic units of the International System of Units, or derived quantities derived from the basic quantities through mathematical operations such as multiplication, division, differentiation or integration.
[0026] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "connected" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0027] As Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown in
[0028] When in use, the first piston 210 can be first removed from the first syringe 200, then the funnel 100 is assembled to the filling port 203, the artificial bone powder is added into the first syringe 200 through the funnel 100, and then the funnel 100 is removed and the first piston 210 is reinstalled. The second syringe 300 is used to suck distilled water. See Figure 3, dock the head end of the second injector 300 with the head end of the first injector 200. First, push the distilled water in the second injector 300 into the first injector 200, and then use the first injector 200 to push the mixture of distilled water and bone meal back into the second injector 300. Repeat this process multiple times until the bone meal and distilled water are fully mixed. The final bone meal slurry formed by mixing can be completely retained in the first injector 200. Refer to Figure 4 , dock the injection catheter 400 with the head end of the first injector 200, insert the injection catheter 400 into the surgical area, align it with the skull base bone defect area, and use the first injector 200 to inject the bone meal slurry into this area, thereby achieving skull base reconstruction.
[0029] In the embodiment of the present utility model, the head end of the first injector 200 has a detachable first plug 500.
[0030] Among them, the first plug 500 and the head end of the first injector 200 can be detachably connected through screw thread cooperation. When adding artificial bone meal into the first injector 200, the first plug 500 should be kept covering the head end of the first injector 200; then, install the first piston 210 and make the head end of the first injector 200 tilt upward. The bone meal falls on the first piston 210 under the action of gravity. At this time, remove the first plug 500 and slowly push the first piston 210 upward until the bone meal is pressed tightly at the head end of the first injector 200, and then install the first plug 500 on the head end of the first injector 200 again.
[0031] In an alternative embodiment, the artificial bone paste mixing and injection kit for skull base reconstruction further includes a syringe 600. The syringe 600 has a detachable needle for extending into the distilled water bottle, and the distilled water is sucked through the needle extending into the distilled water bottle.
[0032] In the state of removing the needle, the head end of the syringe 600 is adapted to the head end of the second injector 300. After docking the head end of the syringe 600 with the head end of the second injector 300, the distilled water in the syringe 600 can be pushed into the second injector 300, and then through the docking of the second injector 300 and the first injector 200, the sealed mixing of distilled water and bone meal is achieved.
[0033] As Figure 1 and Figure 5 shown, the head end of the first injector 200 has a first internal thread sleeve 201 and a first infusion tube 202; the first internal thread sleeve 201 surrounds the first infusion tube 202, and the first internal thread sleeve 201 and the first infusion tube 202 are coaxial; the head ends of the second injector 300 and the injection catheter 400 are both adapted to the first internal thread sleeve 201.
[0034] Among them, the first internal thread sleeve 201 is adapted to the second injection pusher 300 and the injection catheter 400, and the first infusion tube 202 can be inserted into the second injection pusher 300 or the injection catheter 400, so as to ensure that the second injection pusher 300 and the injection catheter 400 can be respectively in close docking with the first injection pusher 200.
[0035] Furthermore, the first infusion tube 202 extends to the outside of the first internal thread sleeve 201; from the end close to the first piston 210 to the end far from the first piston 210, the outer diameter of the first infusion tube 202 decreases.
[0036] When the first internal thread sleeve 201 is fitted with the head end of the second injection pusher 300, as the first internal thread sleeve 201 is screwed and tightened, the size of the first infusion tube 202 inserted into the second injection pusher 300 gradually increases at the head end, so as to realize the interference fit of the first infusion tube 202 with the head end of the second injection pusher 300; when the first internal thread sleeve 201 is fitted with the head end of the injection catheter 400, as the first internal thread sleeve 201 is screwed and tightened, the size of the first infusion tube 202 inserted into the injection catheter 400 gradually increases at the head end, so as to realize the interference fit of the first infusion tube 202 with the injection catheter 400.
[0037] As Figure 1 、 Figure 3 and Figure 6 shown, in an alternative embodiment, the injection catheter 400 includes: a head end portion 410 and a catheter portion 420 connecting the head end portion 410, and the head end portion 410 is adapted to the head end of the first injection pusher 200 by means of threaded fit, interference fit, etc.
[0038] In addition, a hand-held portion 430 extending radially along the catheter portion 420 is connected to the head end portion 410. When in use, by holding the hand-held portion 430, the injection catheter 400 can be screwed and assembled, and the injection catheter 400 can also be ensured to be stable by holding the hand-held portion 430 when injecting bone powder slurry.
[0039] See Figure 5 and Figure 6 In an alternative embodiment, the end of the head end portion 410 facing away from the catheter portion 420 has a convex ring portion 440, and the convex ring portion 440 is adapted to the first internal thread sleeve 201. In the state where the convex ring portion 440 is in mating connection with the first internal thread sleeve 201, the first infusion tube 202 is in interference fit within the catheter portion 420, so as to ensure the sealing performance at the docking portion of the first injection pusher 200 and the injection catheter 400.
[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.
Claims
1. An artificial bone paste mixing injection kit for skull base reconstruction, characterized in that: include: A funnel (100), a first injection pusher (200), a second injection pusher (300) and an injection catheter (400); The first injection pusher (200) has a detachable first piston (210), and a filling port (203) for assembling the funnel (100) is formed when the first piston (210) is removed; The head end of the second injection pusher (300) is adapted to the head end of the first injection pusher (200) and is detachably connected; Furthermore, one of the head end of the second syringe pusher (300) and the head end of the first syringe pusher (200) is adapted to the injection catheter (400) and is detachably connected thereto.
2. The artificial bone paste mixing and injection kit for skull base reconstruction according to claim 1, characterized in that: The head end of the first injection pusher (200) is provided with a detachably connected first plug (500).
3. The artificial bone paste mixing and injection kit for skull base reconstruction according to claim 1, characterized in that: The artificial bone paste mixing and injection kit for skull base reconstruction also includes a syringe (600), wherein the syringe (600) has a detachable needle for extending into the interior of a distilled water bottle.
4. The artificial bone paste mixing and injection kit for skull base reconstruction according to claim 3, characterized in that: When the needle is removed, the head end of the syringe (600) is matched with the head end of the second syringe pusher (300).
5. The artificial bone paste mixing and injection kit for skull base reconstruction according to claim 1, characterized in that: The head end of the first injection pusher (200) has a first internal thread sleeve (201) and a first infusion tube (202); The first internally threaded sleeve (201) surrounds the first infusion tube (202), and the first internally threaded sleeve (201) and the first infusion tube (202) are coaxial; The head end of the second injection pusher (300) and the injection catheter (400) are both compatible with the first internal threaded sleeve (201).
6. The artificial bone paste mixing and injection kit for skull base reconstruction according to claim 5, characterized in that: The first infusion tube (202) extends to the outside of the first internally threaded sleeve (201); The outer diameter of the first infusion tube (202) decreases from an end close to the first piston (210) to an end far from the first piston (210).
7. The artificial bone paste mixing and injection kit for skull base reconstruction according to claim 5, characterized in that: The injection catheter (400) comprises: a terminal portion (410) and a catheter portion (420) connected to the terminal portion (410), and the terminal portion (410) is adapted to the head end of the first injection pusher (200).
8. The artificial bone paste mixing and injection kit for skull base reconstruction according to claim 7, characterized in that: The end portion (410) is connected to a hand-held portion (430) radially extended along the catheter portion (420).
9. The artificial bone paste mixing and injection kit for skull base reconstruction according to claim 7, characterized in that: The end of the end portion (410) facing away from the conduit portion (420) has a convex ring portion (440), and the convex ring portion (440) is adapted to the first internal thread sleeve (201).
10. The artificial bone paste mixing and injection kit for skull base reconstruction according to claim 9, characterized in that: When the convex ring portion (440) is in a state of being matingly connected with the first internally threaded sleeve (201), the first infusion tube (202) is interference-fitted into the catheter portion (420).