Guide needle guider

Abstract

The utility model relates to the field of medical apparatus and instruments, and provides a guide needle guider which comprises a handle, a guide needle and a guide needle. The side face of the positioning catheter is connected with the handle, a guide cavity is formed in the positioning catheter, a guide needle inserting hole set is formed in one end face of the positioning catheter, and a guide needle inserting hole set is formed in the other end face of the positioning catheter; the guide pin insertion hole group comprises a plurality of guide pin insertion holes communicated with the guide cavity, the guide pin insertion holes have different inclination angles and / or translation positions, the guide pin insertion hole group comprises a plurality of guide pin insertion holes communicated with the guide cavity, and each guide pin insertion hole is correspondingly communicated with at least one guide pin insertion hole. According to the guide needle guider provided by the utility model, through the design of the guide needle insertion hole group and the guide needle insertion hole group on the positioning guide tube, the guide needle can be inserted in and out at different inclination angles and / or translation positions. The design allows a doctor to quickly and accurately adjust the position and the angle of the guide needle in the operation process.

Description

Technical Field

[0001] The utility model relates to the field of medical devices, in particular to a guide needle orientator. Background Art

[0002] In current medical surgical practices, especially in surgical procedures that require precise positioning, such as orthopedic surgeries, neurosurgical surgeries, etc., the accurate positioning of surgical guide needles or instruments is crucial for the success of the surgery. However, existing technologies have significant drawbacks and deficiencies in actual operations, which are mainly reflected in the following aspects:

[0003] During the surgical process, when it is found that the positioning of the guide needle or instrument is deviated, doctors usually rely on manual adjustment and imaging assistance to correct it. However, manual adjustment is not only limited by doctors' personal skills and experience, but also when fine-tuning the angle and position, even a tiny change may have a significant impact on the surgical outcome. In addition, manual adjustment may also lead to an extended surgical time, increasing the patient's pain and surgical risks. Although imaging technologies (such as X-ray, CT, MRI, etc.) provide important assistance during the surgical process, relying solely on imaging assistance to position and adjust the position of the guide needle or instrument is also insufficient. Imaging technologies can show the position of the guide needle or instrument in the patient's body, but they cannot directly guide doctors to perform precise fine-tuning.

[0004] Therefore, there is currently a lack of a dedicated instrument on the market that can precisely adjust the position and angle of a guide needle or instrument. Such an instrument should be able to achieve precise fine-tuning of the guide needle or instrument without increasing the surgical time and risks. Summary of the Utility Model

[0005] Embodiments of the utility model provide a guide needle orientator for providing a dedicated instrument that can precisely adjust the position and angle of a guide needle or instrument, so as to achieve precise fine-tuning of the guide needle or instrument without increasing the surgical time and risks.

[0006] Embodiments of the utility model provide a guide needle orientator, comprising:

[0007] A handle;

[0008] A positioning catheter, the side surface of the positioning catheter is connected to the handle, a guiding cavity is formed in the positioning catheter, a guide needle insertion hole group is formed on one end surface of the positioning catheter, and a guide needle extraction hole group is formed on the other end surface of the positioning catheter;

[0009] Among them, the guide pin insertion hole group includes a plurality of guide pin insertion holes communicating with the guide cavity, and each of the guide pin insertion holes has different inclination angles and / or translation positions. The guide pin extraction hole group includes several guide pin extraction holes communicating with the guide cavity, and each of the guide pin extraction holes communicates with at least one of the guide pin insertion holes correspondingly.

[0010] According to the guide pin guide provided by an embodiment of the present invention, the positioning catheter is a translation positioning catheter. Each of the guide pin insertion holes has different translation positions, and the guide pin extraction holes have different translation positions. The guide pin extraction hole group includes a plurality of guide pin extraction holes corresponding to and communicating with a plurality of the guide pin insertion holes one by one.

[0011] According to the guide pin guide provided by an embodiment of the present invention, the plurality of guide pin insertion holes are respectively a reference insertion hole and a translation insertion hole, and the reference insertion hole and the translation insertion hole are separated by a preset distance along the width direction of the positioning catheter.

[0012] The plurality of guide pin extraction holes are respectively a reference extraction hole and a translation extraction hole, and the reference extraction hole and the translation extraction hole are separated by a preset distance along the width direction of the positioning catheter.

[0013] The reference insertion hole and the reference extraction hole communicate correspondingly, and the translation insertion hole and the translation extraction hole communicate correspondingly.

[0014] According to the guide pin guide provided by an embodiment of the present invention, a plurality of the translation insertion holes and the translation extraction holes are correspondingly provided, and each of the translation insertion holes communicates with its corresponding translation extraction hole.

[0015] According to the guide pin guide provided by an embodiment of the present invention, the positioning catheter is a cross-angle guide tube. Each of the guide pin insertion holes has different inclination angles, and the guide pin extraction hole group includes one guide pin extraction hole corresponding to and communicating with a plurality of the guide pin insertion holes.

[0016] According to the guide pin guide provided by an embodiment of the present invention, the plurality of guide pin insertion holes are respectively a reference insertion hole and an inclined insertion hole, and the reference insertion hole and the inclined insertion hole are inclined by a preset angle along the height direction of the positioning catheter.

[0017] The guide pin extraction hole communicates with the reference insertion hole and the inclined insertion hole correspondingly at the same time.

[0018] According to the guide pin guide provided by an embodiment of the present invention, a plurality of the inclined insertion holes are provided, and the guide pin extraction hole communicates with the reference insertion hole and a plurality of the inclined insertion holes correspondingly at the same time.

[0019] According to the needle guide provided by an embodiment of the present utility model, the positioning catheter is a hybrid guide tube, and a plurality of needle insertion hole groups and a plurality of needle extraction hole groups are provided. Each of the needle insertion holes in a part of the needle insertion hole groups has different translation positions, and a part of the needle extraction hole groups includes a plurality of needle extraction holes corresponding one-to-one to the plurality of needle insertion holes.

[0020] Each of the needle insertion holes in another part of the needle insertion hole groups has different inclination angles, and another part of the needle extraction hole groups includes one needle extraction hole corresponding to the plurality of needle insertion holes.

[0021] According to the needle guide provided by an embodiment of the present utility model, the positioning catheter is a hybrid guide tube, and a plurality of needle insertion hole groups and a plurality of needle extraction hole groups are provided. Each of the needle insertion holes in a part of the needle insertion hole groups has different translation positions or inclination angles, and a part of the needle extraction hole groups includes a plurality of needle extraction holes corresponding one-to-one to the plurality of needle insertion holes with different translation positions and one needle extraction hole corresponding to the plurality of needle insertion holes with different inclination angles.

[0022] According to the needle guide provided by an embodiment of the present utility model, it further includes: a handle link. One end of the handle link extends towards one side to be connected to the handle, and a collar for fixing the positioning catheter is formed at the other end of the handle link.

[0023] For the needle guide provided by the present utility model, through the design of the needle insertion hole groups and needle extraction hole groups on the positioning catheter, the needle can be inserted and extracted at different inclination angles and / or translation positions. This design allows the doctor to quickly and accurately adjust the position and angle of the needle during the operation. The needle insertion hole groups include a plurality of needle insertion holes communicating with the guide cavity, and each insertion hole has different inclination angles and / or translation positions. This design enables the doctor to select the most suitable needle insertion angle and position according to the surgical needs, enhancing the flexibility and adaptability of the operation. By using the needle guide, the doctor can more conveniently perform the insertion and adjustment operations of the needle without frequently performing imaging examinations and manual adjustments. This not only simplifies the surgical operation process, but also reduces the labor intensity of the doctor and improves the safety and efficiency of the operation. Description of the Drawings

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required in the description of the embodiments or the prior 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.

[0025] Figure 1 FIG. Figure 1 is a schematic diagram of the overall structure of a needle guide provided by an embodiment of the present invention;

[0026] Figure 2 FIG. is a schematic diagram of the structure of a positioning catheter provided by an embodiment of the present invention;

[0027] Figure 3 FIG. Figure 3 is a schematic diagram of the overall structure of a needle guide provided by another embodiment of the present invention;

[0028] Figure 4 FIG. is a schematic diagram of the structure of a positioning catheter provided by another embodiment of the present invention;

[0029] Figure 5 FIG. Figure 5 is a schematic diagram of the overall structure of a needle guide provided by yet another embodiment of the present invention;

[0030] Figure 6 FIG. is a schematic diagram of the structure of a positioning catheter provided by yet another embodiment of the present invention;

[0031] Reference numerals:

[0032] 10, handle; 20, positioning catheter; 210, needle insertion hole group; 2101, reference insertion hole; 2102, translation insertion hole; 2201, reference ejection hole; 2202, translation ejection hole; 2103, inclined insertion hole; 2104, first needle insertion hole group; 2105, second needle insertion hole group; 2106, third needle insertion hole group; 220, needle ejection hole group; 30, handle link; 40, collar. Detailed implementation manners

[0033] The following will further describe in detail the implementation manners of the present invention in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0034] In the description of the embodiments of the present invention, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0035] In the description of the embodiments of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "connected" and "coupled" 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. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific situations.

[0036] In the description of this specification, the descriptions with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the embodiments of the present utility model. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0037] The present utility model provides a needle guide to improve the accuracy and efficiency of needle insertion. As Figures 1 to 6 shown, the needle guide includes: a handle 10 and a positioning catheter 20. The side surface of the positioning catheter 20 is connected to the handle 10. A guiding cavity is formed in the positioning catheter 20. A needle insertion hole group 210 is formed on one end surface of the positioning catheter 20, and a needle extraction hole group 220 is formed on the other end surface of the positioning catheter 20. The needle insertion hole group 210 includes a plurality of needle insertion holes communicating with the guiding cavity, and each needle insertion hole has a different inclination angle and / or translation position. The needle extraction hole group 220 includes several needle extraction holes communicating with the guiding cavity, and each needle extraction hole corresponds to and communicates with at least one of the needle insertion holes.

[0038] Specifically, in this embodiment, the handle 10 serves as the operating part of the needle guide. The design of the handle 10 adheres to the principles of ergonomics to ensure that doctors or operators can still maintain a comfortable grip during long-term use. The material of the handle 10 is generally a lightweight and durable alloy or plastic, and its surface may be coated with an anti-slip coating to increase the grip stability. The positioning catheter 20 is firmly connected to the side of the handle 10. An accurate guiding cavity is formed inside the positioning catheter 20 for guiding the needle to travel along a predetermined path. One end face of the positioning catheter 20 is designed with a needle insertion hole group 210 (multiple needle insertion holes), and these holes communicate with the guiding cavity. These insertion holes are not simply arranged together, but have different inclination angles and / or translation positions. This design enables doctors or operators to select appropriate insertion holes according to actual needs, thereby adjusting the entry angle and position of the needle to meet the requirements of different surgeries or treatments. Corresponding to the needle insertion hole group, the other end face of the positioning catheter 20 is designed with a needle exit hole group 220. Each exit hole communicates with at least one insertion hole to form a complete needle channel. Such a design ensures that the needle can be accurately and stably inserted out after passing through the guiding cavity, reducing the possibility of misoperation.

[0039] In the needle guide provided by the embodiment of the present utility model, through the design of the needle insertion hole group and the needle exit hole group on the positioning catheter, the needle can be inserted and inserted out at different inclination angles and / or translation positions. This design allows doctors to quickly and accurately adjust the position and angle of the needle during the operation. The needle insertion hole group includes multiple needle insertion holes communicating with the guiding cavity, and each insertion hole has different inclination angles and / or translation positions. This design enables doctors to select the most suitable needle insertion angle and position according to the surgical needs, enhancing the flexibility and adaptability of the surgery. By using the needle guide, doctors can more conveniently perform the operations of inserting and adjusting the needle without frequently performing imaging examinations and manual adjustments. This not only simplifies the surgical operation process, but also reduces the labor intensity of doctors and improves the safety and efficiency of the surgery.

[0040] In one embodiment, as Figure 1 and Figure 2 shown, the positioning catheter 20 is a translation positioning catheter, each needle insertion hole has a different translation position, and the needle exit hole has a different translation position. The needle exit hole group includes multiple needle exit holes that communicate with the multiple needle insertion holes one by one.

[0041] In this embodiment, a guide pin insertion hole group 210 is designed on one end face of the positioning catheter 20, and this group of holes communicates with the guiding cavity. Different from the conventional design, the guide pin insertion holes here have different translation positions, that is, their positions on the catheter end face are not fixed, but are designed with specific offsets according to the surgical needs. Such a design enables the doctor to select a suitable insertion hole according to the needs, thereby adjusting the entry position of the guide pin. Corresponding to the guide pin insertion hole group, a guide pin extraction hole group 220 is designed on the other end face of the positioning catheter 20. This group of extraction holes also has different translation positions to match the design of the insertion hole group. Importantly, the guide pin extraction hole group includes a plurality of guide pin extraction holes that communicate with the plurality of guide pin insertion holes one by one. This means that each insertion hole has a corresponding extraction hole, forming a complete guide pin channel with specific translation positions.

[0042] In this embodiment, by designing guide pin insertion holes and extraction holes with different translation positions, this guide pin guide can achieve precise positioning of the guide pin in the translation direction. This is particularly important for surgeries or treatments that require precise control of the entry and exit positions of the guide pin. Each insertion hole has a corresponding extraction hole, ensuring the stability and accuracy of the guide pin during its travel. At the same time, this design also reduces the possibility of misoperation and improves the safety of the surgery or treatment. Since the guide pin insertion holes and extraction holes have different translation positions, the doctor can select a suitable hole position according to the actual needs, thus adapting to different surgical or treatment requirements. This flexibility makes this guide pin guide have a wider application range.

[0043] In some embodiments, such as Figure 1 and Figure 2 shown, the guide pin insertion holes are respectively a reference insertion hole 2101 and a translation insertion hole 2102, and the reference insertion hole 2101 and the translation insertion hole 2102 are separated by a preset distance along the width direction of the positioning catheter 20. The plurality of guide pin extraction holes are respectively a reference extraction hole 2201 and a translation extraction hole 2202, and the reference extraction hole 2201 and the translation extraction hole 2202 are separated by a preset distance along the width direction of the positioning catheter 20; the reference insertion hole 2101 communicates with the reference extraction hole 2201 correspondingly, and the translation insertion hole 2102 communicates with the translation extraction hole 2202 correspondingly.

[0044] Specifically, the guide pin insertion hole group includes a reference insertion hole 2101 and a translation insertion hole 2102. These two holes are separated by a preset distance along the width direction of the positioning catheter 20. Such a design enables the doctor to select a suitable insertion hole according to the surgical needs. The reference insertion hole 2101 usually serves as a reference point for determining the basic entry position of the guide pin, while the translation insertion hole 2102 allows the doctor to translate the position of the guide pin by selecting different hole positions when needed. Corresponding to the guide pin insertion hole group, the guide pin extraction hole group includes a reference extraction hole 2201 and a translation extraction hole 2202. These extraction holes are also separated by a preset distance along the width direction of the positioning catheter 20 to ensure correct matching with the insertion holes. The reference extraction hole 2201 communicates with the reference insertion hole 2101 correspondingly to form a reference guide pin channel; the translation extraction hole 2202 communicates with the translation insertion hole 2102 correspondingly to form a translation guide pin channel.

[0045] In addition, in some embodiments, such as Figure 1 and Figure 2 shown, there are multiple corresponding translation insertion holes 2102 and translation extraction holes 2202. Each translation insertion hole 2102 communicates with its corresponding translation extraction hole 2202. This means that the doctor can select different translation insertion holes 2102 to further fine-tune the position of the guide pin, and each translation insertion hole 2102 communicates with its corresponding translation extraction hole 2202 to ensure that the guide pin can smoothly enter from the insertion hole and exit from the extraction hole. By designing multiple translation insertion holes 2102 and translation extraction holes 2202, the guide pin guide can achieve precise positioning of the guide pin in the translation direction. The doctor can select a suitable hole position according to the needs, thereby precisely controlling the position of the guide pin.

[0046] In some embodiments, such as Figure 3 and Figure 4 shown, the positioning catheter 20 is a cross-angle guide tube, and each guide pin insertion hole has a different inclination angle. The guide pin extraction hole group 220 includes one guide pin extraction hole corresponding to and communicating with multiple guide pin insertion holes.

[0047] In this embodiment, the positioning catheter 20 is designed as a cross-angle guiding tube, which means that the guiding cavity inside the positioning catheter allows the guide needle to travel at different tilt angles. This design enables the doctor to select an appropriate insertion angle for the guide needle according to the surgical needs, so as to better adapt to the structure and angle requirements of the surgical area. On one end face of the cross-angle guiding tube, a plurality of guide needle insertion holes are designed, and each insertion hole has a different tilt angle. These insertion holes communicate with the guiding cavity, allowing the doctor to insert the guide needle into the guiding cavity at different angles. By selecting different insertion holes, the doctor can adjust the entry angle of the guide needle to meet the surgical requirements. Corresponding to the guide needle insertion hole group, on the other end face of the positioning catheter 20, a guide needle exit hole is designed (that is, the guide needle exit hole group 220 only includes one exit hole). This exit hole corresponds and communicates with the plurality of guide needle insertion holes, that is, no matter from which insertion hole the guide needle enters, it will finally be exported through this common exit hole. This design simplifies the structure of the exit hole and at the same time ensures that the guide needle can smoothly enter from the insertion hole and exit from the exit hole.

[0048] In this embodiment, by designing guide needle insertion holes with different tilt angles, this guide needle guide can adapt to surgical requirements at different angles. The doctor can select an appropriate insertion hole for inserting the guide needle according to the structure and angle requirements of the surgical area. Adopting a common guide needle exit hole design simplifies the structure of the exit hole and reduces the manufacturing cost. At the same time, since the exit hole corresponds and communicates with the plurality of insertion holes, it is ensured that the guide needle can smoothly enter from the insertion hole and exit from the exit hole.

[0049] In some embodiments, such as Figure 3 and Figure 4 shown, the plurality of guide needle insertion holes are respectively a reference insertion hole 2101 and an inclined insertion hole 2103. The reference insertion hole 2101 and the inclined insertion hole 2103 are inclined at a preset angle along the height direction of the positioning catheter 20. The guide needle exit hole corresponds and communicates with both the reference insertion hole 2101 and the inclined insertion hole 2103 at the same time.

[0050] Specifically, the reference insertion hole 2101 usually has a fixed tilt angle, which is used to determine the basic entry position and direction of the guide needle. In addition to the reference insertion hole 2101, inclined insertion holes 2103 are also designed. These inclined insertion holes are inclined at a preset angle relative to the reference insertion hole along the height direction of the catheter, providing the doctor with more angle options. Corresponding to the plurality of guide needle insertion holes, on the other end face of the positioning catheter 20, a common guide needle exit hole is designed. This exit hole corresponds and communicates with the reference insertion hole 2101 and all the inclined insertion holes 2103. That is to say, no matter from which insertion hole the guide needle enters, it will be exported through this common exit hole.

[0051] In other embodiments, such as Figure 3 and Figure 4As shown, there are multiple inclined insertion holes 2103, and the guide pin insertion holes are correspondingly connected to the reference insertion hole 2101 and the multiple inclined insertion holes 2103 at the same time. By designing multiple inclined insertion holes 2103, doctors can select the most suitable guide pin insertion angle according to the surgical requirements, improving the flexibility and accuracy of the surgery. Although there are multiple inclined insertion holes 2103, only one guide pin insertion hole is needed, which greatly simplifies the structure of the guide pin insertion hole, reduces the manufacturing cost, and ensures that the guide pin can smoothly enter through the insertion hole and exit through the insertion hole.

[0052] In some embodiments, such as Figure 5 and Figure 6 As shown, the positioning catheter 20 is a hybrid guiding tube that combines two guiding functions of translation and inclination. The guide pin insertion hole group 210 and the guide pin insertion hole group 220 are both provided with multiple holes. Among them, some of the guide pin insertion holes in the guide pin insertion hole group 210 have different translation positions, and some of the guide pin insertion hole group 220 includes multiple guide pin insertion holes corresponding one by one to the multiple guide pin insertion holes; among them, the other part of the guide pin insertion holes in the guide pin insertion hole group 210 have different inclination angles, and the other part of the guide pin insertion hole group 220 includes one guide pin insertion hole corresponding to the multiple guide pin insertion holes.

[0053] In this embodiment, the positioning catheter 20 is designed as a hybrid guiding tube, which allows precise control of the guide pin in two dimensions of translation and inclination. This design enables doctors to more flexibly handle various surgical scenarios.

[0054] The guide pin insertion hole group 210 is provided with multiple holes, which are divided into two parts: Translation part: Some of the guide pin insertion holes have different translation positions. These insertion holes are spaced apart by a preset distance along the width direction or the length direction of the positioning catheter 20, allowing doctors to translate the position of the guide pin by selecting different insertion holes. Inclination part: The other part of the guide pin insertion holes have different inclination angles. These insertion holes are inclined by a preset angle along the height direction of the catheter relative to the reference insertion hole, providing doctors with more angle options.

[0055] Corresponding to the guide pin insertion hole group, the guide pin insertion hole group 220 is also provided with multiple holes and is divided into two parts: Translation part: Corresponding to the guide pin insertion holes in the translation part, the guide pin insertion hole group includes multiple guide pin insertion holes. These insertion holes correspond one by one to the corresponding insertion holes, forming one or more parallel guide pin channels, allowing the guide pin to move freely in the translation direction. Inclination part: Corresponding to the guide pin insertion holes in the inclination part, the guide pin insertion hole group includes a shared guide pin insertion hole. This insertion hole is correspondingly connected to all the inclined insertion holes. No matter which inclined insertion hole the guide pin enters from, it will be exported through this shared insertion hole.

[0056] In some embodiments, such as Figure 5 andFigure 6 As shown, the positioning catheter is a hybrid guiding catheter. There are multiple needle insertion hole groups 210 and multiple needle extraction hole groups 220. Among them, each needle insertion hole in a part of the needle insertion hole groups 210 has different translation positions or tilt angles. A part of the needle extraction hole groups 220 includes multiple needle extraction holes corresponding one by one to the needle insertion holes with multiple different translation positions and one needle extraction hole corresponding to the needle insertion holes with multiple different tilt angles. In another part of the needle insertion hole groups 210, each needle insertion hole has different tilt angles. In another part of the needle extraction hole groups 220, there is one needle extraction hole corresponding to multiple needle insertion holes.

[0057] In this embodiment, the positioning catheter is designed as a hybrid guiding catheter, which can simultaneously handle the precise guiding requirements of the needle in two dimensions of translation and tilt. The following is a detailed description of this design: There are multiple needle insertion hole groups 210, which are divided into two parts: The first part: The needle insertion holes in this part have different translation positions or tilt angles. Some insertion holes may only change the translation position of the needle, enabling the needle to enter at different points along the positioning catheter. While other insertion holes change the tilt angle of the needle, enabling the needle to be inserted at different angles. The second part: The needle insertion holes in this part only have different tilt angles, providing the doctor with multiple angle options to meet different surgical needs. Corresponding to the needle insertion hole groups, there are also multiple needle extraction hole groups 220: The first part: The needle extraction holes in this part correspond one by one to the first part of the needle insertion holes. For the needle insertion holes with different translation positions, there are multiple corresponding needle extraction holes to ensure that the needle can be accurately extracted from its entry position. For the needle insertion holes with different tilt angles, these extraction holes share a common exit because the change in the tilt angle does not affect the extraction position of the needle. The second part: The needle extraction holes in this part have a single exit and are correspondingly connected to all the needle insertion holes in the second part. Regardless of which tilt angle insertion hole the needle enters from, it will ultimately be extracted from this common extraction hole.

[0058] Specifically, there are three groups of guide pin insertion holes 210, namely the first guide pin insertion hole group 2104, the second guide pin insertion hole group 2105, and the third guide pin insertion hole group 2106; there are three groups of guide pin extraction holes, namely the first guide pin extraction hole group, the second guide pin extraction hole group, and the third guide pin extraction hole group; the multiple guide pin insertion holes of the first guide pin insertion hole group 2104 and the second guide pin insertion hole group 2105 are respectively the first reference insertion hole and the first inclined insertion hole, and the first reference insertion hole and the first inclined insertion hole are inclined at a preset angle along the height direction of the positioning catheter; the guide pin extraction holes of the first guide pin extraction hole group are correspondingly communicated with the first reference insertion hole and the first inclined insertion hole of the first guide pin insertion hole group 2104 at the same time; the guide pin extraction holes of the second guide pin extraction hole group are correspondingly arranged with the first reference insertion hole and the first inclined insertion hole of the second guide pin insertion hole group at the same time. The multiple guide pin insertion holes of the third guide pin insertion hole group 2106 are respectively the second reference insertion hole, the second inclined insertion hole, and the second translation insertion hole; the guide pin extraction holes of the third guide pin extraction hole group are respectively the second reference extraction hole and the second translation extraction hole; the second reference insertion hole and the second translation insertion hole are separated by a preset distance along the width direction of the positioning catheter, the second reference extraction hole and the second translation extraction hole are separated by a preset distance along the width direction of the positioning catheter, the second reference insertion hole and the second inclined insertion hole are inclined at a preset angle along the height direction of the positioning catheter, the second reference extraction hole is correspondingly arranged with the second reference insertion hole and the second inclined insertion hole at the same time, and the second translation insertion hole is correspondingly arranged with the second translation extraction hole.

[0059] In some embodiments, as Figure 1 , Figure 3 and Figure 5 shown, the guide pin guide further includes: a handle link 30, one end of the handle link 30 extends to one side to be connected to the handle 10, and a collar 40 for fixing the positioning catheter 20 is formed at the other end of the handle link 30.

[0060] In this embodiment, the handle link 30 is a long connecting component, and one end of it extends to one side to be connected to the handle 10. This design enables the doctor to indirectly control the positioning catheter 20 and the guide pin therein by operating the handle 10. The length and shape of the handle link 30 can be adjusted according to actual needs to ensure that the doctor can operate comfortably and flexibly during the operation.

[0061] The collar 40 is located at the other end of the handle link 30, and its main function is to fix the positioning catheter 20. The shape and size of the collar 40 can be customized according to the outer diameter of the positioning catheter 20 to ensure a tight fit between the two and prevent sliding or falling off during the operation. In addition, the collar 40 can also be fixed to the handle link 30 by screws or other fasteners to ensure its stability and reliability.

[0062] In this embodiment, through the design of the handle connecting rod 30 and the collar 40, the connection between the guide pin guide and the positioning catheter 20 is more stable and reliable, reducing the risk of accidental detachment or sliding during the operation. The doctor can easily control the positioning catheter 20 and the guide pin therein by operating the handle 10 to achieve precise guidance and positioning. This design improves the flexibility and convenience of the surgical operation. The design of the handle connecting rod 30 and the collar 40 can be adjusted and replaced according to different surgical requirements to adapt to different specifications and types of positioning catheters 20 and guide pins.

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. 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 for some of the technical features. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

[0064] The above embodiments are only used to illustrate the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, those of ordinary skill in the art should understand that various combinations, modifications or equivalent replacements of the technical solutions of the present invention do not deviate from the spirit and scope of the technical solutions of the present invention and should all be covered within the scope of the claims of the present invention.

Claims

1. A needle guide, characterized in that, Comprising: A handle; A positioning catheter, the side surface of the positioning catheter is connected to the handle, a guiding cavity is formed in the positioning catheter, a guide needle insertion hole group is formed on one end surface of the positioning catheter, and a guide needle extraction hole group is formed on the other end surface of the positioning catheter; Wherein, the guide needle insertion hole group includes a plurality of guide needle insertion holes communicated with the guiding cavity, each of the guide needle insertion holes has different inclination angles and / or translation positions, the guide needle extraction hole group includes several guide needle extraction holes communicated with the guiding cavity, and each of the guide needle extraction holes is correspondingly communicated with at least one of the guide needle insertion holes.

2. The guide needle guide according to claim 1, characterized in that, The positioning catheter is a translation positioning catheter, each of the guide needle insertion holes has different translation positions, and the guide needle extraction holes have different translation positions. The guide needle extraction hole group includes a plurality of guide needle extraction holes corresponding to and communicated with a plurality of the guide needle insertion holes one by one.

3. The guide pin guide according to claim 2, characterized in that, The plurality of guide needle insertion holes are respectively a reference insertion hole and a translation insertion hole, and the reference insertion hole and the translation insertion hole are separated by a preset distance along the width direction of the positioning catheter; The plurality of guide needle extraction holes are respectively a reference extraction hole and a translation extraction hole, and the reference extraction hole and the translation extraction hole are separated by a preset distance along the width direction of the positioning catheter; The reference insertion hole and the reference extraction hole are correspondingly communicated, and the translation insertion hole and the translation extraction hole are correspondingly communicated.

4. The guide needle guide according to claim 3, characterized in that, A plurality of the translation insertion holes and the translation extraction holes are correspondingly provided, and each of the translation insertion holes is communicated with its corresponding translation extraction hole.

5. The guide needle guide according to claim 1, characterized in that The positioning catheter is a cross-angle guiding tube, each of the guide needle insertion holes has different inclination angles, and the guide needle extraction hole group includes one guide needle extraction hole corresponding to and communicated with a plurality of the guide needle insertion holes.

6. The guide needle guide according to claim 5, characterized in that, The plurality of guide needle insertion holes are respectively a reference insertion hole and an inclined insertion hole, and the reference insertion hole and the inclined insertion hole are inclined by a preset angle along the height direction of the positioning catheter; The guide needle extraction hole is simultaneously correspondingly communicated with the reference insertion hole and the inclined insertion hole.

7. The guide needle guide according to claim 6, characterized in that A plurality of the inclined insertion holes are provided, and the guide needle extraction hole is simultaneously correspondingly communicated with the reference insertion hole and a plurality of the inclined insertion holes.

8. The guide pin guide according to claim 1, characterized in that, The positioning catheter is a mixed guiding tube, both the guide needle insertion hole group and the guide needle extraction hole group are provided with a plurality of them. Among them, each of the guide needle insertion holes in a part of the guide needle insertion hole group has different translation positions, and a part of the guide needle extraction hole group includes a plurality of guide needle extraction holes corresponding to and corresponding to a plurality of the guide needle insertion holes one by one; Among them, each of the guide needle insertion holes in another part of the guide needle insertion hole group has different inclination angles, and another part of the guide needle extraction hole group includes one guide needle extraction hole corresponding to a plurality of the guide needle insertion holes.

9. The guide needle guide according to claim 1, characterized in that, The positioning catheter is a hybrid guiding catheter, and a plurality of needle insertion hole groups and a plurality of needle extraction hole groups are provided. Each of the needle insertion holes in a part of the needle insertion hole groups has different translation positions or inclination angles. A part of the needle extraction hole groups includes a plurality of needle extraction holes corresponding one-to-one to the needle insertion holes at a plurality of different translation positions and one needle extraction hole corresponding to the needle insertion holes at a plurality of different inclination angles; Each of the needle insertion holes in another part of the needle insertion hole groups has different inclination angles, and another part of the needle extraction hole groups includes one needle extraction hole corresponding to the plurality of needle insertion holes.

10. The guide needle guide according to any one of claims 1-9, characterized in that, It further includes: a handle link, one end of the handle link extends to one side to be connected to the handle, and a collar for fixing the positioning catheter is formed at the other end of the handle link.

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