CN114052801B - Spiral nested puncture needle and puncture device - Google Patents
Spiral nested puncture needle and puncture device Download PDFInfo
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- CN114052801B CN114052801B CN202210047115.0A CN202210047115A CN114052801B CN 114052801 B CN114052801 B CN 114052801B CN 202210047115 A CN202210047115 A CN 202210047115A CN 114052801 B CN114052801 B CN 114052801B
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- A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
- A61B10/02—Instruments for taking cell samples or for biopsy
- A61B10/0233—Pointed or sharp biopsy instruments
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
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- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
- A61B18/1402—Probes for open surgery
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
- A61B18/1815—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using microwaves
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/08—Accessories or related features not otherwise provided for
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
- A61B2018/00577—Ablation
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
- A61B2018/1405—Electrodes having a specific shape
- A61B2018/1425—Needle
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- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
- A61B18/1815—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using microwaves
- A61B2018/1869—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using microwaves with an instrument interstitially inserted into the body, e.g. needles
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/08—Accessories or related features not otherwise provided for
- A61B2090/0801—Prevention of accidental cutting or pricking
- A61B2090/08021—Prevention of accidental cutting or pricking of the patient or his organs
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Abstract
The application discloses nested formula pjncture needle of spiral and piercing depth includes: a puncture needle and a spiral needle tube; the spiral needle tube is provided with at least one needle tube spiral part, and the spiral needle tube is spiral in the direction of the needle tube spiral part; the interior of the spiral needle tube is hollow, and the puncture needle is sleeved in the spiral needle tube; the puncture needle is sleeved in the spiral needle tube and provided with at least one needle body spiral part matched with the needle tube spiral part and at least one section of needle head part capable of extending out of the spiral needle tube; the puncture needle is connected with the spiral needle tube in a sliding way, so that the needle head part of the puncture needle can retract or extend out of the spiral needle tube. The puncture biopsy or ablation needle arrangement treatment crossing the barrier is realized, the technical effect of the application range of the puncture needle is improved, and the problem that the puncture biopsy or the treatment cannot be treated by using the ablation needle arrangement due to the fact that the puncture needle in the related technology cannot bypass important organs which are located in front of the focus and need to be avoided is solved.
Description
Technical Field
The application relates to the technical field of medical equipment, in particular to a spirally nested puncture needle and puncture equipment.
Background
When a biopsy needle or an ablation treatment needle (a radio frequency needle, a microwave needle, a steep pulse electroporation needle, etc.) is inserted into a human body, important blood vessels, organs, etc. are often encountered, the blood vessels or the organs cannot be inserted, and medical accidents such as pneumothorax, blood vessel rupture, organ failure, etc. occur once the puncture needle penetrates the organs. When important tissues or organs are encountered in the puncture path, a doctor can only open other paths, however, other suitable paths are not available in practical application, and the treatment cannot be realized by the ablation needle for puncture biopsy or treatment. There is an urgent need in medical clinics for a needle that can bypass important organs that need to be avoided, and achieve needle biopsy or ablation needle placement treatment across obstacles.
Disclosure of Invention
The main aim at of this application provides a spiral nested formula pjncture needle to solve the pjncture needle among the correlation technique and can't bypass the important organ that needs evade that is located focus the place ahead, lead to unable use puncture biopsy or treatment with melting put the needle problem of treating.
In order to achieve the above object, the present application provides a spirally nested puncture needle comprising: a puncture needle and a spiral needle tube; wherein the content of the first and second substances,
the spiral needle tube is provided with at least one needle tube spiral part, and the spiral needle tube is spiral in the direction of the needle tube spiral part;
the interior of the spiral needle tube is hollow, and the puncture needle is sleeved in the spiral needle tube;
the puncture needle is sleeved in the spiral needle tube and provided with at least one needle body spiral part matched with the needle tube spiral part and at least one section of needle head part capable of extending out of the spiral needle tube;
the puncture needle is connected with the spiral needle tube in a sliding mode, so that the needle head of the puncture needle can retract or extend out of the spiral needle tube.
Further, the needle head part has elasticity, and a straight needle head is formed after the needle head part extends out of the spiral needle tube;
the axis of the straight needle head is superposed with the axis of the needle tube spiral part, so that the straight needle head is positioned at the center of the needle tube spiral part.
The puncture needle further comprises a needle tube handle and a puncture needle handle, wherein one end of the puncture needle, which is far away from the needle head part, is fixed on the puncture needle handle;
one end of the spiral needle tube, which is far away from the needle head part, is fixed on the needle tube handle;
the end part of the needle tube handle is provided with an operation hole communicated with the inside of the spiral needle tube, the puncture needle handle is detachably sleeved in the needle tube handle, and the puncture needle penetrates through the operation hole and then is sleeved in the spiral needle tube.
Furthermore, the thread pitches of all sections of the spiral part of the needle body are equal.
Further, the puncture needle handle and the needle tube handle are nested concentrically.
Furthermore, the spiral needle tube comprises an inner spiral needle tube and an outer spiral needle tube, and the inner spiral needle tube and the outer spiral needle tube are provided with needle tube spiral parts with the same direction;
the inner spiral needle tube and the outer spiral needle tube are arranged in a hollow mode, the inner spiral needle tube is sleeved in the outer spiral needle tube, and the puncture needle is sleeved in the inner spiral needle tube;
the needle tube handle is connected with the end parts of the inner spiral needle tube and the outer spiral needle tube.
Further, the needle tube handle comprises an inner needle tube handle and an outer needle tube handle, the inner needle tube handle is nested in the outer needle tube handle, and the puncture needle handle is nested in the inner needle tube handle;
the end part of the inner spiral needle tube is communicated with the handle of the inner needle tube, and the end part of the outer spiral needle tube is communicated with the handle of the outer needle tube;
the inner needle tube handle and the outer needle tube handle are both provided with operating holes, and the inner spiral needle tube penetrates through the operating holes on the outer needle tube handle and then is sleeved in the outer spiral needle tube;
the puncture needle penetrates through the operation hole on the handle of the inner needle tube and then is sleeved in the inner spiral needle tube.
Furthermore, the sections of the puncture needle handle, the inner needle tube handle and the outer needle tube handle are arranged to be similar polygons.
Further, annular grooves are formed in the outer sides of the puncture needle handle, the inner needle tube handle and the outer needle tube handle;
the annular grooves are uniformly distributed along the axial direction and used for determining the propelling distances of the corresponding puncture needle, the corresponding inner spiral needle tube and the corresponding outer spiral needle tube.
Further, the sections of the puncture needle handle, the inner needle tube handle and the outer needle tube handle are arranged to be similar octagons;
the puncture needle handle interior needle tubing handle with all be provided with the scale interval on every face of outer needle tubing handle for the record corresponds the puncture needle handle interior needle tubing handle with the rotational position of outer needle tubing handle.
Furthermore, one end of the puncture needle close to the puncture needle handle is provided with a straight line section;
one end of the inner spiral needle tube close to the handle of the inner needle tube and one end of the outer spiral needle tube close to the handle of the outer needle tube are arranged into straight line sections, and the other parts form the spiral part of the needle tube;
the straight line section and the straight needle head are arranged coaxially, so that the straight line section is located in the center of the needle tube spiral part.
In the embodiment of the application, the puncture needle and the spiral needle tube are arranged; the spiral needle tube is provided with at least one needle tube spiral part, and the spiral needle tube is spiral in the direction of the needle tube spiral part; the interior of the spiral needle tube is hollow, and the puncture needle is sleeved in the spiral needle tube; the puncture needle is sleeved in the spiral needle tube and provided with at least one needle body spiral part matched with the needle tube spiral part and at least one section of needle head part capable of extending out of the spiral needle tube; the puncture needle is connected with the spiral needle tube in a sliding mode, so that the needle head portion of the puncture needle can retract or extend out of the spiral needle tube, the puncture needle is retracted into the spiral needle tube and inserted along with the spiral needle tube in the spiral direction, organs to be avoided are located in the inner diameter range of the spiral portion of the needle body, the puncture needle extends out of the spiral needle tube after bypassing the organs to be avoided to perform corresponding treatment on focuses, important organs located in front of the focuses can be bypassed during puncture, puncture biopsy or ablation needle arrangement treatment crossing obstacles is achieved, the technical effect of the application range of the puncture needle is improved, and the problem that the puncture needle in the related technology cannot bypass the important organs located in front of the focuses and cannot be treated by using the puncture biopsy or ablation needle arrangement for treatment is solved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, serve to provide a further understanding of the application and to enable other features, objects, and advantages of the application to be more apparent. The drawings and their description illustrate the embodiments of the invention and do not limit it. In the drawings:
FIG. 1 is a schematic structural diagram according to the present application;
FIG. 2 is a schematic side view of an embodiment of the present application;
FIG. 3 is another side view schematic according to an embodiment of the present application;
FIG. 4 is a schematic structural view of a puncture needle according to an embodiment of the present application;
FIG. 5 is a schematic structural view of an internally threaded needle cannula according to an embodiment of the present application;
FIG. 6 is a side view schematic illustration of an inner needle cannula handle according to an embodiment of the present application;
FIG. 7 is a schematic structural view of an outer coiled needle cannula according to an embodiment of the present application;
FIG. 8 is a side view schematic illustration of an outer needle cannula handle according to an embodiment of the present application;
FIG. 9 is a schematic diagram of the overall structure according to an embodiment of the present application;
FIG. 10 is a schematic structural view of an obstacle bypassing arrangement according to an embodiment of the present application;
FIG. 11 is a side view schematic of the structure of FIG. 10;
the puncture needle comprises a puncture needle 1, an internal spiral needle tube 2, an external spiral needle tube 3, a needle tube spiral part 4, a spiral needle tube 5, a needle head part 6, a straight line part 7, a puncture needle handle 11, an annular groove 12, an internal needle tube handle 21, an external needle tube handle 31, an operation hole 213 and a barrier 8.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used.
In this application, the terms "upper", "lower", "inside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.
Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.
Furthermore, the terms "disposed," "provided," "connected," "secured," and the like are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In addition, the term "plurality" shall mean two as well as more than two.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
When a biopsy needle or an ablation treatment needle (a radio frequency needle, a microwave needle, a steep pulse electroporation needle, etc.) is inserted into a human body, important blood vessels, organs, etc. are often encountered, the blood vessels or the organs cannot be inserted, and medical accidents such as pneumothorax, blood vessel rupture, organ failure, etc. occur once the puncture needle penetrates the organs. When important tissues or organs are encountered in the puncture path, a doctor can only open other paths, however, other suitable paths are not available in practical application, and the treatment cannot be realized by the ablation needle for puncture biopsy or treatment. There is an urgent need in medical clinics for a needle that can bypass important organs that need to be avoided, and achieve needle biopsy or ablation needle placement treatment across obstacles.
To this end, as shown in fig. 1 to 3, an embodiment of the present application provides a spirally nested puncture needle, including: a puncture needle 1 and a spiral needle tube 5; wherein the content of the first and second substances,
the spiral needle tube 5 is provided with at least one needle tube spiral part 4, and the spiral needle tube 5 is spiral in the direction of the needle tube spiral part 4;
the interior of the spiral needle tube 5 is hollow, and the puncture needle 1 is sleeved in the spiral needle tube 5;
the puncture needle 1 is sleeved in the spiral needle tube 5 and provided with at least one needle body spiral part matched with the needle tube spiral part 4 and at least one section of needle head part 6 capable of extending out of the spiral needle tube 5;
the puncture needle 1 is slidably connected with the spiral needle tube 5, so that the needle head 6 of the puncture needle 1 can retract or extend out of the spiral needle tube 5.
In this embodiment, the spirally nested puncture needle mainly comprises a puncture needle 1 and a spiral needle tube 5, the spiral needle tube 5 has a needle tube spiral part 4, and the spiral needle tube 5 is bent in a spiral direction by the needle tube spiral part 4. In this embodiment the helical needle cannula 5 is either entirely helical or has a straight section 7 at one end only, the remainder being helical. Because the spiral part 4 of the needle tube on the spiral needle tube 5 is arranged, the spiral needle tube 5 is changed from a straight tube into a spiral tube, and compared with the situation that the barrier 8 cannot be effectively avoided during puncture when the needle tube is a straight tube, as shown in fig. 10 and 11, the spiral needle tube 5 is of a hollow structure in the inner diameter range of the spiral part, the barrier 8 to be avoided can be positioned at the hollow structure during puncture, at the moment, the spiral needle tube 5 can effectively bypass the barrier 8 during puncture, and the needle inserting mode of the spiral needle tube 5 can be rotation around the axis of the spiral part 4 of the needle tube.
The puncture biopsy or the energy release for ablation is mainly realized by the puncture needle 1, so the puncture needle 1 is sleeved in the spiral needle tube 5 in the embodiment. The puncture needle 1 is a flexible needle, has a certain elastic deformation capacity, and can be made of a material with better elasticity, such as a nickel-titanium alloy material, a 65Mn spring steel material, or a 301 spring steel material. The puncture needle 1 is a straight needle before penetrating into the spiral needle tube 5, and after penetrating into the spiral needle tube 5, the puncture needle 1 is deformed to form a needle body spiral part matched with the needle tube spiral part 4 due to the limitation of the needle tube spiral part 4 on the spiral needle tube 5.
Due to the sliding connection between the puncture needle 1 and the spiral needle tube 5, the needle head part 6 of the puncture needle 1 can be retracted into the spiral needle tube 5 or extended out of the spiral needle tube 5 by pulling or pushing the puncture needle 1. In use, the spirally nested puncture needle 1 is pulled to retract into the spiral needle tube 5, and then the obstacle 8 to be crossed is arranged within the inner diameter of the spiral part 4 of the needle tube 5. The position of the obstacle 8 to be crossed can be determined by a CT scanning device or other scanning devices, and before puncturing, the projection of the needle helix 4 on the obstacle 8 should completely surround the obstacle 8, which means that the important tissue or organ to be crossed is located within the inner diameter of the needle helix 4. At this time, the spiral needle tube 5 is pushed or rotated along the axis of the needle tube spiral part 4, so that the puncture needle 1 is carried by the spiral needle tube to synchronously move and bypass important tissues or organs to be avoided. After the needle helix 4 has passed over the important tissue or organ to be avoided, the puncture needle 1 can be pushed so that the needle tip extends out of the helical needle cannula 5 and is inserted into the lesion site. Then, the puncture biopsy or the ablation operation of releasing energy can be carried out through the puncture needle 1.
In order to avoid injury caused by contact of the needle head 6 with the important tissues or organs which are bypassed before during withdrawal of the needle, the puncture needle 1 is pulled to retract the needle head 6 into the spiral sleeve, and then the spiral sleeve 5 is withdrawn from the body of the patient.
The embodiment achieves the purposes that the puncture needle 1 retracts into the spiral needle tube 5 and is inserted in the spiral direction along with the spiral needle tube 5, so that organs to be avoided are positioned in the inner diameter range of the spiral part of the needle body, the puncture needle 1 extends out of the spiral needle tube 5 to treat focuses correspondingly after bypassing the organs to be avoided, important organs positioned in front of the focuses can be bypassed during puncture, the puncture biopsy or ablation needle arrangement treatment crossing the obstacles 8 is realized, the technical effect of the application range of the puncture needle 1 is improved, and the problem that the puncture needle 1 in the related technology cannot bypass the important organs positioned in front of the focuses and cannot be used for treatment by using the ablation needle arrangement for puncture biopsy or treatment is solved.
Since the puncture needle 1 is realized by the contact of the needle head portion 6 with the lesion when performing the puncture biopsy or ablation, a high requirement is required for the position of the needle head portion 6. If the needle head 6 of the puncture needle 1 is also spiral, the direction of the needle head 6 is not directly toward the focus position, more operations are needed to make the needle head 6 and puncture into the focus, and the puncture position is not well controlled.
Therefore, in the present embodiment, the tip portion 6 is configured as a straight tip portion 6, that is, the tip portion 6 of the puncture needle 1 can recover to a straight needle under the elastic action of the spiral needle tube 5 after extending out of the spiral needle tube 5, that is, the tip portion 6 of the puncture needle 1 in the present embodiment has better elasticity, and the straight tip portion 6 is formed after the tip portion 6 extends out of the spiral needle tube 5.
Because the puncture needle 1 is sleeved in the spiral needle tube 5, when the puncture needle 1 is inserted, the needle head part 6 of the puncture needle rotates around the axis of the needle tube spiral part 4 of the spiral needle tube 5, so that the needle head part 6 of the puncture needle 1 can be accurately punctured into a set position, the needle head part 6 only can rotate around the axis of the needle head part, and cannot eccentrically rotate. Therefore, in the present embodiment, as shown in fig. 1 to 3, the axis of the tip segment 6 coincides with the axis of the barrel spiral 4, so that the tip segment 6 is located at the center of the barrel spiral 4. Through the arrangement of the structure, the needle head part 6 of the puncture needle 1 can be accurately punctured into a focus position during needle insertion, and puncture dislocation caused by deflection can be avoided.
In order to facilitate the insertion of the spiral needle tube 5 and the puncture needle 1 respectively, as shown in fig. 4 to 6, the spirally nested puncture needle in the embodiment further comprises a needle tube handle and a puncture needle handle 11, and one end of the puncture needle 1 away from the needle head part 6 is fixed on the puncture needle handle 11;
one end of the spiral needle tube 5 far away from the needle head part 6 is fixed on the needle tube handle;
the end of the needle tube handle is provided with an operation hole 213 communicated with the interior of the spiral needle tube 5, the puncture needle handle 11 is detachably sleeved in the needle tube handle, and the puncture needle 1 penetrates through the operation hole 213 and then is sleeved in the spiral needle tube 5.
Specifically, it should be noted that the needle shaft handle and the puncture needle handle 11 are similar in structure, and the whole body thereof may have a structure similar to a cylindrical shape. The needle tube handle and the puncture needle handle 11 are both provided with grooves along the axial direction, one end of each groove is of a larger opening structure, the other end of each groove is of a smaller opening, and the smaller opening forms an operation hole 213.
Before use, the puncture needle 1 is fixed to the operation hole 213 at the end of the puncture needle handle 11 to be integrated, and then the spiral needle tube 5 is fixed to the operation hole 213 at the end of the needle handle to be also integrated. Finally, the needle head part 6 of the puncture needle 1 is inserted into the needle tube handle and penetrates into the spiral needle tube 5 through the operation hole 213, and the puncture needle handle 11 can be embedded into the needle tube handle by pushing the puncture needle 1 or the puncture needle handle 11. At the moment, the end part of the puncture needle handle 11 and the end part of the needle tube handle still have a certain adjusting distance, so that the puncture needle handle 11 is conveniently pushed independently to enable the puncture needle 1 to extend out of the spiral needle tube 5.
As shown in figure 9, the needle handle 11 and the needle cannula handle are concentrically nested for ease of insertion and withdrawal of the needle 1. When in operation, the puncture needle handle 11 and the needle tube handle can be held by hands to realize the needle insertion of the puncture needle 1 and the needle insertion of the spiral needle tube 5. The structure of the puncture needle handle 11 and the needle tube handle should be designed to facilitate the operation.
Since the needle insertion of the spiral needle tube 5 or the needle insertion of the puncture needle 1 is in the spiral direction, the needle insertion or withdrawal depth can be determined by the number of turns of the rotation. Therefore, in order to accurately obtain the needle inserting depth and the needle withdrawing depth, the thread pitches of all sections of the spiral part of the needle body are equal, so that the needle inserting depth and the needle withdrawing depth are conveniently calculated.
Since the depth of the puncture needle 1 and the depth of the obstacle 8 that can be avoided are affected by the length of the spiral needle tube 5, the depth of the puncture needle and the depth of the obstacle 8 that can be avoided are increased without increasing the length of the spiral needle tube 5 itself. As shown in fig. 1 and 10, in the present embodiment, two spiral needle tubes 5 are provided, that is, the spiral needle tube 5 includes an inner spiral needle tube 2 and an outer spiral needle tube 3, the inner spiral needle tube 2 and the outer spiral needle tube 3 both have needle tube spiral portions 4 with the same direction, the inner spiral needle tube 2 and the outer spiral needle tube 3 are substantially the same in structure, and the difference is that the inner diameter of the outer spiral needle tube 3 is larger than the inner diameter of the inner spiral needle tube 2, so that the inner spiral needle tube 2 can be sleeved in the outer spiral needle tube 3.
Namely, the inner spiral needle tube 2 and the outer spiral needle tube 3 are arranged in a hollow manner, the inner spiral needle tube 2 is sleeved in the outer spiral needle tube 3, the puncture needle 1 is sleeved in the inner spiral needle tube 2, and the needle tube handle is connected with the end parts of the inner spiral needle tube 2 and the outer spiral needle tube 3.
In this embodiment, after the spiral needle tube 5 is modified into the outer spiral needle tube 3 and the inner spiral needle tube 2 which are sleeved and can move relatively, the puncture needle 1, the inner spiral needle tube 2 and the outer spiral needle tube 3 are sequentially sleeved from inside to outside, before use, the puncture needle 1 retracts into the inner spiral needle tube 2, and the inner spiral needle tube 2 retracts into the outer spiral needle tube 3.
When in puncture, the outer spiral needle tube 3 is firstly punctured into the body of a patient, when the length of the outer spiral needle tube 3 cannot avoid the barrier 8 or the puncture needle 1 cannot reach the focus position, the inner spiral needle tube 2 can be continuously pushed, the barrier 8 is avoided through the inner spiral needle tube 2, the needle head part 6 of the puncture needle 1 is close to the focus position, and finally the puncture needle 1 is pushed to ensure that the needle head part 6 extends out of the inner spiral needle tube 2 to realize puncture biopsy or ablation operation of releasing energy.
Through the setting of outer spiral needle tubing 3 and interior spiral needle tubing 2 for the nested formula pjncture needle of spiral in this application can effectual improvement coverage.
Since the spiral needle tube 5 is divided into the inner spiral needle tube 2 and the outer spiral needle tube 3, and the inner spiral needle tube 2 and the outer spiral needle tube 3 need to be operated independently, as shown in fig. 5, 7 and 9, the needle tube handle in this embodiment includes an inner needle tube handle 21 and an outer needle tube handle 31, the inner needle tube handle 21 is nested in the outer needle tube handle 31, and the puncture needle handle 11 is nested in the inner needle tube handle 21;
the end part of the inner spiral needle tube 2 is communicated with the inner needle tube handle 21, and the end part of the outer spiral needle tube 3 is communicated with the outer needle tube handle 31;
the inner needle tube handle 21 and the outer needle tube handle 31 are both provided with operation holes 213, and the inner spiral needle tube 2 is sleeved in the outer spiral needle tube 3 after passing through the operation holes 213 on the outer needle tube handle 31;
the puncture needle 1 passes through the operation hole 213 of the inner needle tube handle 21 and then is sleeved in the inner spiral needle tube 2.
Specifically, in the present embodiment, the spirally nested puncture needle is integrally composed of three components, one of which is an external component composed of the outer spiral needle tube 3 and the outer needle tube handle 31, the other is an intermediate component composed of the inner spiral needle tube 2 and the inner needle tube handle 21, and the last is an internal component composed of the puncture needle 1 and the puncture needle handle 11. Before the three are installed, the outer spiral needle tube 3 and the inner spiral needle tube 2 are of independent structures, and both have needle tube spiral parts 4 with the same trend.
When the needle inserting device is installed, the end part of the inner spiral needle tube 2 penetrates through the operation hole 213 on the outer needle tube handle 31 and then extends into the outer spiral needle tube 3, the inner needle tube handle 21 is nested in the outer needle tube handle 31, and a certain adjusting distance is formed between the inner needle tube handle 21 and the end part of the outer needle tube handle 31, so that the needle inserting depth of the outer spiral needle tube 3 can be adjusted conveniently. Then, the needle head part 6 of the puncture needle 1 passes through the operation hole 213 of the inner needle tube handle 21 and then extends into the inner spiral needle tube 2, the puncture needle handle 11 is nested in the inner needle tube handle 21, and a certain adjusting distance is provided between the inner needle tube handle 21 and the end part of the puncture needle handle 11, so that the puncture needle 1 can extend out of the inner spiral needle tube 2.
Since the insertion of the puncture needle 1, the inner and outer spiral needle tubes 2 and 3 requires the rotation of the corresponding handles, in order to facilitate the rotation of the corresponding handles, as shown in fig. 5, 7 and 9, the puncture needle handle 11, the inner needle tube handle 21 and the outer needle tube handle 31 are similarly polygonal in cross section in the present embodiment.
Since the needle insertion of the puncture needle 1, the inner spiral needle tube 2 and the outer spiral needle tube 3 needs to apply thrust in some cases, in order to apply thrust to the puncture needle 1 and the corresponding needle tube, the puncture needle handle 11, the inner needle tube handle 21 and the outer needle tube handle 31 are provided with annular grooves 12 on the outer sides thereof in this embodiment;
the annular grooves 12 are provided in a plurality of axially uniform distribution for determining the advancing distances of the corresponding puncture needle 1, the inner spiral needle tube 2 and the outer spiral needle tube 3.
Specifically, the pushing distance of the puncture needle 1 can be determined by determining the number of the grooves of the part of the puncture needle handle 11 extending out of the inner needle tube handle 21, and similarly, the pushing distance of the inner spiral needle tube 2 can be determined by determining the number of the grooves of the part of the inner needle tube handle 21 extending out of the outer needle tube handle 31, which is convenient for assisting medical staff in determining the depth of the puncture needle and the distance of the puncture needle 1 from the focus position.
Specifically, it should be noted that, since the needle insertion of the puncture needle 1, the inner spiral needle tube 2 and the outer spiral needle tube 3 needs to be realized by rotating the corresponding handle, the needle insertion depth can still be reflected to a certain extent with respect to the rotation position of the handle, and the needle insertion depth can be obtained by conveniently and accurately obtaining the rotation position of the corresponding hand. The sections of the puncture needle handle 11, the inner needle tube handle 21 and the outer needle tube handle 31 in the embodiment are arranged to be similar octagons;
each surface of the puncture needle handle 11, the inner needle tube handle 21 and the outer needle tube handle 31 is provided with scale values for recording the rotating positions of the corresponding puncture needle handle 11, the inner needle tube handle 21 and the outer needle tube handle 31.
As shown in fig. 1 to 11, one end of the puncture needle 1 close to the puncture needle handle 11 is provided with a straight line segment 7;
one end of the inner spiral needle tube 2 close to the handle 21 of the inner needle tube and one end of the outer spiral needle tube 3 close to the handle 31 of the outer needle tube are arranged into straight line segments 7, and the other parts form a needle tube spiral part 4;
the straight line section 7 is arranged coaxially with the needle head section 6, so that the straight line section 7 is positioned at the center of the needle tube spiral section 4.
In this embodiment, in order to facilitate the insertion of the outer spiral needle tube 3, the inner spiral needle tube 2 and the puncture needle 1 by rotating, a straight line section 7 is provided at a portion of the outer spiral needle tube 3, the inner spiral needle tube 2 and the puncture needle 1, which is close to the corresponding handle, and the straight line section 7 is coaxial with the needle tube spiral part 4 of the outer spiral needle tube 3 and the inner spiral needle tube 2, that is, the straight line section 7 is located at the center of the needle tube spiral part 4. And after the needle head part 6 extends out of the needle tube spiral part 4, the straight line part 7 is coaxial with the needle head part 6 of the puncture needle 1, the inner needle tube handle 21, the outer needle tube handle 31 and the puncture needle handle 11, so that when the puncture needle handle 11 rotates around the axis of the puncture needle handle, the needle head part 6 of the puncture needle 1 moves linearly to accurately reach the focus position.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A spirally nested puncture needle, comprising: a puncture needle and a spiral needle tube; wherein the content of the first and second substances,
the spiral needle tube is provided with at least one needle tube spiral part, and the spiral needle tube is spiral in the direction of the needle tube spiral part;
the interior of the spiral needle tube is hollow, and the puncture needle is sleeved in the spiral needle tube;
the puncture needle is sleeved in the spiral needle tube and provided with at least one needle body spiral part matched with the needle tube spiral part and at least one section of needle head part capable of extending out of the spiral needle tube;
the puncture needle is in sliding connection with the spiral needle tube, so that the needle head part of the puncture needle can be retracted or extended out of the spiral needle tube;
the needle head part has elasticity, and a straight needle head part is formed after the needle head part extends out of the spiral needle tube;
the axis of the straight needle head is superposed with the axis of the needle tube spiral part, so that the straight needle head is positioned at the center of the needle tube spiral part.
2. The spirally nested puncture needle of claim 1, further comprising a needle tube handle and a puncture needle handle, wherein one end of the puncture needle, which is far away from the needle head, is fixed on the puncture needle handle;
one end of the spiral needle tube, which is far away from the needle head part, is fixed on the needle tube handle;
the end part of the needle tube handle is provided with an operation hole communicated with the inside of the spiral needle tube, the puncture needle handle is detachably sleeved in the needle tube handle, and the puncture needle penetrates through the operation hole and then is sleeved in the spiral needle tube.
3. The helically nested puncture needle of claim 2, wherein the helical portion of the needle body has equal pitch segments.
4. The spirally nested puncture needle according to claim 3, wherein the spiral needle tube comprises an inner spiral needle tube and an outer spiral needle tube, and the inner spiral needle tube and the outer spiral needle tube are provided with needle tube spiral parts with the same trend;
the inner spiral needle tube and the outer spiral needle tube are arranged in a hollow mode, the inner spiral needle tube is sleeved in the outer spiral needle tube, and the puncture needle is sleeved in the inner spiral needle tube;
the needle tube handle is connected with the end parts of the inner spiral needle tube and the outer spiral needle tube.
5. The spirally nested puncture needle of claim 4, wherein the needle cannula handle comprises an inner needle cannula handle and an outer needle cannula handle, the inner needle cannula handle being nested within the outer needle cannula handle, the puncture needle handle being nested within the inner needle cannula handle;
the end part of the inner spiral needle tube is communicated with the handle of the inner needle tube, and the end part of the outer spiral needle tube is communicated with the handle of the outer needle tube;
the inner needle tube handle and the outer needle tube handle are both provided with operating holes, and the inner spiral needle tube penetrates through the operating holes on the outer needle tube handle and then is sleeved in the outer spiral needle tube;
the puncture needle penetrates through the operation hole on the handle of the inner needle tube and then is sleeved in the inner spiral needle tube.
6. The spirally nested puncture needle of claim 5, wherein the cross-sections of the puncture needle handle, the inner needle tube handle and the outer needle tube handle are provided as similar polygons.
7. The spirally nested puncture needle according to claim 5 or 6, wherein the puncture needle handle, the inner needle tube handle and the outer needle tube handle are provided with annular grooves on the outer sides;
the annular grooves are uniformly distributed along the axial direction and used for determining the propelling distances of the corresponding puncture needle, the corresponding inner spiral needle tube and the corresponding outer spiral needle tube.
8. The spirally nested puncture needle of claim 6, wherein the puncture needle handle, the inner needle tube handle and the outer needle tube handle are provided with similar octagonal cross sections;
the puncture needle handle interior needle tubing handle with all be provided with the scale interval on every face of outer needle tubing handle for the record corresponds the puncture needle handle interior needle tubing handle with the rotational position of outer needle tubing handle.
9. The helically nested puncture needle of claim 8, wherein the end of the puncture needle proximate the puncture needle handle is provided as a straight segment;
one end of the inner spiral needle tube close to the handle of the inner needle tube and one end of the outer spiral needle tube close to the handle of the outer needle tube are arranged into straight line sections, and the other parts form the spiral part of the needle tube;
the straight line section and the straight needle head are arranged coaxially, so that the straight line section is located in the center of the needle tube spiral part.
10. A puncture device comprising a puncture needle holding means and a spirally nested puncture needle according to any one of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210047115.0A CN114052801B (en) | 2022-01-17 | 2022-01-17 | Spiral nested puncture needle and puncture device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210047115.0A CN114052801B (en) | 2022-01-17 | 2022-01-17 | Spiral nested puncture needle and puncture device |
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| CN114052801A CN114052801A (en) | 2022-02-18 |
| CN114052801B true CN114052801B (en) | 2022-03-18 |
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| CN110177507A (en) * | 2016-10-05 | 2019-08-27 | 宾夕法尼亚大学理事会 | That sharply turns turns to needle |
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| US8500757B2 (en) * | 2009-07-28 | 2013-08-06 | Edwards Lifesciences Corporation | Surgical puncture cinch and closure system |
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| JP5986320B2 (en) * | 2012-10-19 | 2016-09-06 | クック・メディカル・テクノロジーズ・リミテッド・ライアビリティ・カンパニーＣｏｏｋ Ｍｅｄｉｃａｌ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｌｌｃ | Self-winding stylet needle device |
| EP3079597B1 (en) * | 2013-12-13 | 2023-07-26 | Intuitive Surgical Operations, Inc. | Telescoping biopsy needle |
| US20150272662A1 (en) * | 2014-03-28 | 2015-10-01 | Spiration, Inc., d.b.a. Olympus Respiratory America | System and method for predictable deployment of a medical device |
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| US6542781B1 (en) * | 1999-11-22 | 2003-04-01 | Scimed Life Systems, Inc. | Loop structures for supporting diagnostic and therapeutic elements in contact with body tissue |
| CN205287211U (en) * | 2015-12-07 | 2016-06-08 | 湖北康泉医疗科技有限责任公司 | Multi -functional associated drainage catheter of spiral |
| CN110177507A (en) * | 2016-10-05 | 2019-08-27 | 宾夕法尼亚大学理事会 | That sharply turns turns to needle |
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| CN114052801A (en) | 2022-02-18 |
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