Bone puncture needle assembly for percutaneous bone cement plasty
By combining the guide needle and the bone aspiration needle, the problem of the bone aspiration needle being difficult to accurately locate in one go is solved, achieving precise insertion and reducing patient damage, thus improving the safety and efficiency of the operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2026-03-20
AI Technical Summary
Existing bone aspiration needles are difficult to accurately locate diseased bone structures in one puncture, leading to repeated punctures that increase patient pain and bodily damage.
The device employs a combination of a guide needle and a bone aspiration needle. The guide needle is first inserted into the diseased bone structure, and then the bone aspiration needle is coaxially mounted on the guide needle to ensure precise insertion. The detachable handle of the guide needle avoids operational interference and reduces harm to the patient.
This technology enables precise positioning of the bone marrow aspiration needle, reducing patient pain and bodily damage, and improving the safety and efficiency of the procedure.
Smart Images
Figure CN224008445U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to medical instrument technical field especially, a kind of bone puncture needle assembly for percutaneous bone cement forming. BACKGROUND
[0002] Percutaneous bone cement forming is a minimally invasive surgery in the field of spine surgery in recent years, applicable to the treatment of osteoporosis compression fracture, vertebral hemangioma, vertebral metastasis tumor, vertebral myeloma etc., with the characteristics of small trauma and rapid recovery, helping patients to quickly alleviate pain and improve patient quality of life.
[0003] When performing surgery, positioning puncture is needed through perspective. Currently, bone puncture needle with diameter of 13G or larger diameter is mostly used in clinic. The bone puncture needle is pierced into the diseased bone structure, and the bone cement prepared in advance is injected into the diseased bone structure through the channel inside the bone puncture needle. After injection is completed, the bone puncture needle is withdrawn, and finally the wound is hemostatic, sutured and bandaged.
[0004] When positioning puncture is performed, since the diameter of the bone puncture needle is relatively thick, when accurate positioning puncture cannot be performed at one time, the bone puncture needle needs to be withdrawn and positioning puncture is performed again. Repeated puncture not only increases the pain of patients, but also causes greater damage to the patient's body. UTILITY MODEL CONTENT
[0005] An object of the utility model is to solve the problem that the existing bone puncture needle cannot accurately position and puncture at one time when performing bone puncture on the diseased bone structure, which increases the pain of patients and damages the patient's body.
[0006] In particular, the embodiments of the present application provide a bone puncture needle assembly for percutaneous bone cement forming, comprising:
[0007] A guide needle, one end of the guide needle is a first pointed end, the diameter of the guide needle is a first preset diameter, and the length of the guide needle is a first preset length.
[0008] A bone puncture needle, the bone puncture needle is provided with a first channel penetrating the length direction of the bone puncture needle inside, one end of the bone puncture needle is a second pointed end, the inner diameter of the bone puncture needle is a second preset diameter, the length of the bone puncture needle is a second preset length, the second preset length is smaller than the first preset length, the second preset diameter is larger than the first preset diameter, the bone puncture needle is sleeved on the guide needle after the guide needle is inserted into the diseased bone structure from the first pointed end, and the bone puncture needle is inserted into the diseased bone structure from the second pointed end.
[0009] The bone puncture needle assembly for percutaneous bone cement forming of the utility model further comprises a bone tissue biopsy needle, a second passage is arranged inside the bone tissue biopsy needle and penetrates the length direction of the bone tissue biopsy needle, one end of the bone tissue biopsy needle is a third pointed end, the diameter of the bone tissue biopsy needle is a third preset diameter, the length of the bone tissue biopsy needle is a third preset length, the third preset diameter is smaller than the second preset diameter, and the third preset length is greater than the second preset length; after the bone puncture needle is inserted into the pathological bone structure, the bone tissue biopsy needle is arranged in the bone puncture needle and is inserted into the pathological bone structure by the third pointed end.
[0010] Further, the first preset diameter is smaller than the third preset diameter, and the first preset length is greater than the third preset length.
[0011] Further, the other end of the guide needle is provided with a first handle facilitating insertion of the guide needle into the pathological bone structure.
[0012] Further, the first handle and the guide needle are detachably connected.
[0013] Further, the first handle and the guide needle are threadedly connected.
[0014] Further, the other end of the bone puncture needle is provided with a second handle facilitating insertion of the bone puncture needle into the pathological bone structure.
[0015] Further, the other end of the bone tissue biopsy needle is provided with a third handle facilitating insertion of the bone tissue biopsy needle into the pathological bone structure.
[0016] The utility model has the advantages of:
[0017] 1. The bone puncture needle assembly for percutaneous bone cement forming of the utility model comprises a guide needle and a bone puncture needle, the diameter of the guide needle is a first preset diameter, and the length of the guide needle is a first preset length; the diameter of the bone puncture needle is a second preset diameter, and the length of the bone puncture needle is a second preset length; after the guide needle is accurately inserted into the pathological bone structure, the bone puncture needle is coaxially sleeved in the guide needle and is inserted into the pathological bone structure; the bone puncture needle with a relatively large diameter is accurately inserted into the pathological bone structure, and damage to the patient's body is reduced.
[0018] 2. The first handle is detachably arranged on the guide needle, the guide needle is conveniently inserted into the pathological bone structure, and the existence of the first handle does not hinder coaxial sleeving of the bone puncture needle on the guide needle. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 It is a structure schematic view when the guide needle of the utility model is inserted into the bone puncture needle according to one embodiment.
[0020] Figure 2 Figure 1 is a structure schematic diagram of a bone tissue biopsy needle according to an embodiment of the present application.
[0021] Figure 3 Figure 2 is a length comparison diagram of a guide needle, a bone puncture needle and a bone tissue biopsy needle according to an embodiment of the present application.
[0022] 1 - guide needle; 2 - bone puncture needle; 3 - first tip; 4 - second tip; 5 - bone tissue biopsy needle; 6 - third tip; 7 - first handle; 8 - second handle; 9 - third handle. DETAILED DESCRIPTION
[0023] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. It can be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application. In addition, it should be noted that, for the purpose of description, only the parts related to the present application are shown in the drawings, rather than all the structures. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.
[0024] The terms "comprising" and "having" and any variations thereof in the present application are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device including a series of steps or units is not limited to the listed steps or units, but optionally further includes steps or units not listed, or optionally further includes other steps or units inherent to the process, method, product or device.
[0025] Reference to "embodiments" herein means that the specific features, structures or characteristics described in connection with the embodiments can be included in at least one embodiment of the present application. The phrase appears at various places in the specification is not necessarily all referring to the same embodiments, nor is it necessarily referring to only one alternative embodiment or an alternative embodiment exclusive of all other embodiments. It is explicitly and implicitly understood by those skilled in the art that embodiments described herein can be combined with other embodiments.
[0026] The utility model discloses a bone puncture needle assembly for percutaneous bone cement forming operation includes guide needle 1 and bone puncture needle 2. The one end of guide needle 1 is first pointed end 3, and the diameter of guide needle 1 is first preset diameter, and the length of guide needle 1 is first preset length. Bone puncture needle 2 is internally provided with first passway through the length direction of bone puncture needle 2, and one end of bone puncture needle 2 is second pointed end 4, and the inner diameter of bone puncture needle 2 is second preset diameter, and the length of bone puncture needle 2 is second preset length. Second preset length is less than first preset length, and second preset diameter is greater than first preset diameter, and after guide needle 1 is inserted into pathological bone structure by first pointed end 3, bone puncture needle 2 is sleeved on guide needle 1, and is inserted into pathological bone structure by second pointed end 4.
[0027] In the specific operation, first, guide needle 1 is inserted into pathological bone structure through perspective technology, and after guide needle 1 is accurately inserted into pathological bone structure, bone puncture needle 2 is coaxially sleeved on guide needle 1, and at this time, bone puncture needle 2 can also be accurately inserted into pathological bone structure.
[0028] When guide needle 1 is not accurately inserted into pathological bone structure due to operation failure, guide needle 1 can be pulled out and reinserted. Since the diameter of guide needle 1 is first diameter, guide needle 1 with smaller diameter can be selected according to actual conditions. In an embodiment, the diameter of guide needle 1 is less than or equal to 20G, and the length is 20CM. The diameter of bone puncture needle 2 is 13G, and the length is 10CM. After bone puncture needle 2 and guide needle 1 are coaxially inserted into pathological bone structure, the length of guide needle 1 exposed from bone puncture needle 2 is 10CM, facilitating the pulling out of guide needle 1. When guide needle 1 is not accurately inserted into pathological bone structure, guide needle 1 is pulled out and reinserted. Since the diameter of bone puncture needle 2 is less than or equal to 20G, it will not cause excessive damage to the human body. After bone puncture needle 2 is accurately inserted into pathological bone structure, guide needle 1 is pulled out, and the bone cement prepared in advance is injected into pathological bone structure through the first passway. Through the above setting, the bone puncture needle with larger diameter is accurately inserted into pathological bone structure at one time, and the damage to the patient's body is reduced.
[0029] The utility model discloses a bone puncture needle assembly for percutaneous bone cement forming operation still includes bone tissue biopsy needle 5. Bone tissue biopsy needle 5 is internally provided with second passway through the length direction of bone tissue biopsy needle 5, and one end of bone tissue biopsy needle 5 is third pointed end 6, and the diameter of bone tissue biopsy needle 5 is third preset diameter, and the length of bone tissue biopsy needle 5 is third preset length, and third preset diameter is less than second preset diameter, and third preset length is greater than second preset length, and after bone puncture needle 2 is inserted into pathological bone structure, bone tissue biopsy needle 5 is arranged in bone puncture needle 2, and is inserted into pathological bone structure by third pointed end 6.
[0030] The specific operation process is that first, the guide needle 1 is accurately inserted into the diseased bone structure through the perspective technology, then the bone puncture needle 2 is coaxially sleeved on the guide needle 1, so that the bone puncture needle 2 is accurately inserted into the diseased bone structure, then the guide needle 1 is pulled out, and the bone tissue biopsy needle 5 is coaxially inserted into the first channel of the bone puncture needle 2 from the third pointed end 6 to perform biopsy sampling. Since the third preset length is greater than the second preset length, the bone tissue biopsy needle 5 is conveniently pulled out after being inserted into the bone puncture needle 2. In an embodiment, the diameter of the bone tissue biopsy needle 5 is 15G, and the length is 15CM. The diameter of the bone puncture needle 2 is 13G, and the length is 10CM. After the bone tissue biopsy needle 5 is inserted into the bone puncture needle 2, the bone puncture needle 2 is exposed by 5CM, which is convenient for the insertion and pulling out of the bone tissue biopsy needle 5.
[0031] In an embodiment, the first preset diameter is smaller than the third preset diameter, and the first preset length is greater than the third preset length. Since the guide needle 1 only plays a guiding role, after the bone puncture needle 2 is accurately positioned, the guide needle 1 can be pulled out. Compared with the bone puncture needle 2 and the bone tissue biopsy needle 5, the guide needle 1 does not have specific size restrictions, so the diameter of the guide needle 1 can be set as small as possible, and the length can be set as long as possible, so as to minimize the damage to the patient's body and facilitate the insertion and pulling out of the guide needle 1.
[0032] In an embodiment, the other end of the guide needle 1 is provided with a first handle 7 for facilitating the insertion of the guide needle 1 into the diseased bone structure. When the guide needle 1 is inserted into or pulled out of the diseased bone structure, the medical staff can hold the first handle 7.
[0033] In an embodiment, the first handle 7 is detachably connected with the guide needle 1. After the guide needle 1 is accurately inserted into the diseased bone structure through the perspective technology, the bone puncture needle 2 needs to be coaxially sleeved on the guide needle 1. When the bone puncture needle 2 is sleeved on the guide needle 1, the presence of the first handle 7 may cause inconvenience to the operation. The first handle 7 is detachably connected with the guide needle 1, after the guide needle 1 is inserted into the diseased bone structure through the first handle 7, the first handle 7 is detached from the guide needle 1, and the bone puncture needle 2 is coaxially sleeved on the guide needle 1, so that the presence of the first handle 7 does not cause inconvenience to the operation. In an embodiment, the first handle 7 is threadedly connected with the guide needle 1.
[0034] In an embodiment, the other end of the bone puncture needle 2 is provided with a second handle 8 for facilitating the insertion of the bone puncture needle 2 into the diseased bone structure. In another embodiment, the other end of the bone tissue biopsy needle 5 is provided with a third handle 9 for facilitating the insertion of the bone tissue biopsy needle 5 into the diseased bone structure. By providing the second handle 8 and the third handle 9, the operation of the operator is facilitated.
[0035] The above-described embodiments only express several implementation manners of the utility model, the description is more specific and detailed, but can not therefore be understood as the limitation of the utility model patent range. It should be pointed out that for ordinary skilled person in the art, without departing from the utility model concept, several modifications and improvements can be made, which belong to the protection range of the utility model. Therefore, the protection range of the utility model patent should be subject to the appended claims.
Claims
1. A bone aspiration needle assembly for percutaneous bone cementation, characterized in that, include: A guide pin, one end of which is a first tip, the diameter of which is a first preset diameter, and the length of which is a first preset length; and A bone aspiration needle, wherein a first passage is provided inside the bone aspiration needle along its length, one end of the bone aspiration needle is a second tip, the inner diameter of the bone aspiration needle is a second preset diameter, the length of the bone aspiration needle is a second preset length, the second preset length is less than the first preset length, and the second preset diameter is greater than the first preset diameter. After the guide needle is inserted into the diseased bone structure from the first tip, the bone aspiration needle is fitted onto the guide needle and inserted into the diseased bone structure from the second tip. A bone biopsy needle, wherein the bone biopsy needle has a second passage extending through the length of the bone biopsy needle, one end of the bone biopsy needle is a third tip, the diameter of the bone biopsy needle is a third preset diameter, and the length of the bone biopsy needle is a third preset length. The third preset diameter is smaller than the second preset diameter, and the third preset length is greater than the second preset length. After the bone puncture needle is inserted into the diseased bone structure, the bone biopsy needle is inserted through the bone puncture needle and inserted into the diseased bone structure by the third tip.
2. The bone aspiration needle assembly for percutaneous bone cementation as described in claim 1, characterized in that, The first preset diameter is smaller than the third preset diameter, and the first preset length is greater than the third preset length.
3. The bone aspiration needle assembly for percutaneous bone cementation as described in claim 1 or 2, characterized in that, The other end of the guide needle is provided with a first handle to facilitate insertion of the guide needle into the diseased bone structure.
4. The bone aspiration needle assembly for percutaneous bone cementation as described in claim 3, characterized in that, The first handle is detachably connected to the guide pin.
5. The bone aspiration needle assembly for percutaneous bone cementation as described in claim 4, characterized in that, The first handle is threadedly connected to the guide pin.
6. The bone aspiration needle assembly for percutaneous bone cementation as described in claim 1, characterized in that, The other end of the bone aspiration needle is provided with a second handle to facilitate insertion of the bone aspiration needle into the diseased bone structure.
7. The bone aspiration needle assembly for percutaneous bone cementation as described in claim 1, characterized in that, The other end of the bone biopsy needle is provided with a third handle to facilitate insertion of the bone biopsy needle into the diseased bone structure.