CN111096778A - A medical camber controllable puncture needle - Google Patents
A medical camber controllable puncture needle Download PDFInfo
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- CN111096778A CN111096778A CN202010104784.8A CN202010104784A CN111096778A CN 111096778 A CN111096778 A CN 111096778A CN 202010104784 A CN202010104784 A CN 202010104784A CN 111096778 A CN111096778 A CN 111096778A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/34—Trocars; Puncturing needles
- A61B17/3472—Trocars; Puncturing needles for bones, e.g. intraosseus injections
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Abstract
本发明公开了一种医用弯度可控穿刺针，包括弯度控制组件、Y形连接组件、弯管组件、堵针组件；弯度控制组件包括旋帽、把手左片、把手右片、梯形螺纹金属件、弯度指示件、锁紧件、锁紧螺钉、限位螺钉；Y形连接组件包括Y形连接件、橡胶密封圈、顶紧螺纹件；弯管组件包括金属外管、外管端头、塑料内管、金属拉丝，金属外管前端开有规则切割缝，金属拉丝与外管前端焊接，塑料内管置于金属外管内并贴合管壁将切割缝密封；堵针组件包括堵针外管、金属丝、卡扣、拧帽。本发明可通过转动旋帽带动梯形螺纹金属件移动，使锁紧的拉丝将金属外管定向弯曲0°到150°，在手术中可使椎体内形成弧形腔，提高了手术效率，降低了手术损伤病人的手术痛苦。
The invention discloses a medical camber controllable puncture needle, comprising a camber control component, a Y-shaped connection component, a curved tube component and a needle blocking component; the camber control component includes a screw cap, a left handle piece, a right handle piece, and a trapezoidal thread metal piece , camber indicator, locking member, locking screw, limit screw; Y-shaped connection components include Y-shaped connection parts, rubber sealing rings, top tightening screw parts; elbow components include metal outer tube, outer tube end, plastic The inner tube and metal wire drawing, the front end of the metal outer tube has a regular cutting seam, the metal wire drawing is welded with the front end of the outer tube, the plastic inner tube is placed in the metal outer tube and fits the tube wall to seal the cutting seam; the plugging component includes the plugging outer tube , wire, buckle, screw cap. The invention can drive the trapezoidal threaded metal piece to move by rotating the screw cap, so that the locking wire can bend the metal outer tube directionally by 0° to 150°, so that an arc-shaped cavity can be formed in the vertebral body during the operation, the operation efficiency is improved, and the operation efficiency is reduced. Painful surgery for patients with surgical injuries.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to a medical bending controllable puncture needle for minimally invasive spine surgery, which is mainly characterized in that percutaneous puncture of minimally invasive technology is adopted, and an operation channel and a targeting path are controllable.
Background
Percutaneous vertebroplasty/percutaneous kyphoplasty is a common mature minimally invasive spine surgery at present, and the treatment means is to inject bone cement into a vertebral body to increase the strength and stability of the vertebral body, wherein a part of patients with serious vertebral body collapse need to use a balloon to expand the collapsed vertebral body to form a cavity which can be filled with the bone cement. In the operation process, for the condition that a bone cement filling cavity cannot be established at the fracture/collapse position of a vertebral body of a part of patients through a puncture position, repeated puncture or bilateral puncture is usually needed to be carried out on the patients, the operation pain of the patients is aggravated by the method, and the operation complexity and the operation cost are also increased.
In order to solve the technical problems, a medical bending controllable puncture needle needs to be designed, the medical bending controllable puncture needle can realize unilateral puncture aiming at complex vertebroplasty and form an arc-shaped cavity in a vertebral body, and can be used as a bone cement injection part to fill bone cement into a designated area.
Disclosure of Invention
The invention aims to provide a medical puncture needle with controllable camber, which can realize unilateral puncture in vertebroplasty and form an arc-shaped cavity in a vertebral body, and can be used as a bone cement injection part to fill bone cement into a designated area, thereby relieving the operation pain of a patient and reducing the operation workload of a doctor.
In order to solve the technical problems, the invention adopts the following specific technical scheme:
a medical bending controllable puncture needle comprises a bending control assembly, a Y-shaped connecting assembly, a bent pipe assembly and a needle plugging assembly;
the camber control assembly comprises a screw cap, a left handle piece, a right handle piece, a trapezoidal thread metal piece, a locking screw, a camber indicating piece and a limiting screw, wherein the screw cap and the trapezoidal thread metal piece are designed in a trapezoidal thread fit mode;
the Y-shaped connecting component comprises a Y-shaped connecting piece, a rubber sealing ring and a tightening thread piece, the Y-shaped connecting piece is connected with the bending degree control component and the bent pipe component, the rubber sealing ring and the tightening thread piece are arranged in an inner hole at one side of the bending degree control component, a small hole for passing through a metal wire drawing is reserved in the middle of the Y-shaped connecting piece, the side section interface of the Y-shaped connecting piece is designed into a universal Ruhr thread, the needle blocking component penetrates into the end head of the bent pipe from the side section interface, and devices such as a bone cement injector and the;
the bent pipe assembly comprises a metal outer pipe, an outer pipe end, a plastic inner pipe and a metal drawn wire, wherein a welding hole is formed in the front end of the metal outer pipe and used for welding the metal drawn wire, two groups of cutting seams with different sizes are arranged below the welding hole, the cutting seams can be extruded to be smaller when the metal outer pipe is bent, the cutting seams can be completely extruded to form a line when the metal outer pipe is bent to 90 degrees, the plastic inner pipe is arranged in the metal outer pipe and clings to the inner wall of the metal outer pipe to seal the cutting seams at the front end of the metal outer pipe, and the outer pipe;
the plugging needle assembly comprises a plugging needle outer tube, a metal wire, a buckle and a screwing cap, wherein the tail of the plugging needle outer tube is reserved with one section to be connected with the buckle, other parts are provided with spiral cutting seams to enable the plugging needle outer tube to be relatively strong in flexibility, the metal wire is arranged in the plugging needle outer tube, the head of the plugging needle outer tube is welded with the metal wire to form a bead-shaped welding spot, the tail of the plugging needle outer tube clamps the metal wire and is fixedly connected with the buckle, and the buckle is buckled on the screwing cap.
The invention has the following beneficial effects: compared with the prior art, the instrument can realize unilateral puncture aiming at complex vertebroplasty and form a required arc-shaped cavity in the vertebral body, and can also be used as a bone cement injection piece to fill bone cement to a designated area, thereby reducing the workload of doctors and the pain born by patients during and after the operation; the medical bending-controllable puncture needle is used for percutaneous puncture of a minimally invasive technology, and the establishment of an operation channel and the control of a target path are controllable.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a cross-sectional view of the overall construction of the present invention;
FIG. 3 is a schematic structural view of a camber control assembly of the present invention;
FIG. 4 is a schematic view of a Y-shaped connecting assembly of the present invention;
FIG. 5 is a schematic view of the elbow assembly of the present invention
FIG. 6 is a schematic structural view of a needle blocking assembly of the present invention;
in the figure: 1-a camber control assembly; 2-Y-shaped connecting components; 3-a pipe bending assembly; 4-blocking the needle assembly; 11-screwing a cap; 12-left handle piece; 13-right handle piece; 14-trapezoidal thread metal pieces; 15-camber indicator; 16-a locking member; 17-locking screws; 18-a limit screw; 21-Y shaped connectors; 22-rubber sealing ring; 23-tightening the screw; 31-a metal outer tube; 32-outer tube end; 33-plastic inner tube; 34-metal drawing; 41-blocking the needle outer tube; 42-wire; 43-buckling; 44-screw the cap.
Detailed Description
The technical scheme of the invention is further explained in detail by combining the drawings and the specific examples.
FIG. 1 is an overall structural diagram of the present invention, and the components include: the device comprises a camber control assembly 1, a Y-shaped connecting assembly 2, a bent pipe assembly 3 and a needle plugging assembly 4.
Fig. 2 is a sectional view of the overall structure of the present invention, and the constituent elements include: the device comprises a screw cap 11, a left handle piece 12, a right handle piece 13, a trapezoidal thread metal piece 14, a bending degree indicating piece 15, a locking piece 16, a locking screw 17, a limiting screw 18, a Y-shaped connecting piece 21, a rubber sealing ring 22, a tightening screw 23, an outer metal tube 31, an outer tube end 32, an inner plastic tube 33, a metal wire drawing 34, an outer needle blocking tube 41, a metal wire 42, a buckle 43 and a screw cap 44.
FIG. 3 is a schematic structural view of the camber control assembly 1 of the present invention; the component parts include: the handle comprises a screw cap 11, a left handle piece 12, a right handle piece 13, a trapezoidal thread metal piece 14, a locking piece 15, a locking screw 16, a bending degree indicating piece 17 and a limiting screw 18.
Fig. 4 is a schematic structural diagram of the Y-shaped connecting assembly 2 of the present invention, and the components include: y-shaped connecting piece 21, rubber sealing ring 22 and tightening screw 23.
Fig. 5 is a schematic structural view of the elbow assembly 3 of the present invention, the components including: a metal outer pipe 31, an outer pipe end head 32, a plastic inner pipe 33 and a metal wire 34.
Fig. 6 is a schematic structural diagram of the blocking needle assembly 4 of the invention, and the components comprise: the needle blocking outer tube 41, the metal wire 42, the buckle 43 and the screw cap 44.
As shown in fig. 1-6, a medical bending controllable puncture needle comprises a bending control assembly 1, a Y-shaped connecting assembly 2, an elbow assembly 3 and a needle blocking assembly 4;
the camber control assembly comprises a screw cap 11, a left handle piece 12, a right handle piece 13, a trapezoidal thread metal piece 14, a locking piece 15, a locking screw 16, a camber indicating piece 17 and a limiting screw 18, wherein the screw cap 11 and the trapezoidal thread metal piece 14 are designed in a trapezoidal thread fit mode, the trapezoidal thread metal piece 14 cannot rotate due to the limitation of the limiting screw 18, the trapezoidal thread metal piece 14 can move axially when the screw cap 11 is rotated, a metal drawn wire 34 penetrates through the trapezoidal thread metal piece 14, is locked by the locking piece 16 and is locked by the locking screw 17, the camber indicating piece 15 is in threaded connection with the trapezoidal thread metal piece 14, and the trapezoidal thread metal piece 14 is installed in the left handle piece 12 and the right handle piece 13 with corresponding cavities;
the Y-shaped connecting component 2 comprises a Y-shaped connecting piece 21, a rubber sealing ring 22 and a tightening thread piece 23, the Y-shaped connecting piece 21 is connected with the bending degree control component 1 and the bent pipe component 3, the rubber sealing ring 22 and the tightening thread piece 23 are installed in an inner hole on one side of the bending degree control component 1, a small hole for passing through a metal wire drawing 34 is reserved in the middle of the Y-shaped connecting piece 21, the interface on the side section of the Y-shaped connecting piece 21 is designed into a universal Ruhr thread, the needle blocking component 4 penetrates into the end head 32 of the bent pipe from the side, and devices such as a bone cement injector and the;
the bent pipe assembly 3 comprises a metal outer pipe 31, an outer pipe end head 32, a plastic inner pipe 33 and a metal drawn wire 34, wherein a welding hole is formed in the front end of the metal outer pipe 31 and used for welding the metal drawn wire 34, two groups of cutting seams with different sizes are arranged below the welding hole, the cutting seams can be extruded to be small when the metal outer pipe 31 is bent, the cutting seams can be completely extruded to form a line when the metal outer pipe 31 is bent to 90 degrees, the plastic inner pipe 33 is arranged in the metal outer pipe 31 and clings to the inner wall of the metal outer pipe 31 to seal the cutting seams at the front end of the metal outer pipe 31, and the outer pipe end head;
the needle blocking assembly 4 comprises a needle blocking outer tube 41, a metal wire 42, a buckle 43 and a screwing cap 44, one section of the needle blocking outer tube 31 is reserved at the tail part and connected with the buckle 43, spiral cutting seams are formed at the other parts to enable the needle blocking outer tube 41 to be relatively flexible, the metal wire 42 is arranged in the needle blocking outer tube 41, the head part of the needle blocking outer tube 41 is welded with the metal wire 42 to form a bead-shaped welding point, the metal wire 42 is tightly clamped at the tail part of the needle blocking outer tube 41 and fixedly connected with the buckle 43, and the buckle 43 is buckled on the screwing cap 44.
The working process of the invention is as follows: when a patient needs to perform a vertebroplasty operation, firstly, a puncture part of the operation is determined, after a puncture channel is established, the metal external tube 31 is taken out, the plug assembly 4 is installed to plug a hole in the end head 32 of the external tube, the handle part of the metal external tube is held by one hand, the screw cap 11 part of the metal external tube is held by one hand, the front end of the metal external tube 31 slowly penetrates into the vertebral body along the established channel, the screw cap 11 is properly rotated clockwise in the penetrating process layer to bend the metal external tube 31 to a proper angle by means of scanning images and bending indication of a visible window, and the screw cap 11 is properly rotated counterclockwise in the withdrawing process to bend the metal external tube 31 to a proper angle, so that an arc-shaped cavity suitable for treating the patient is formed in the vertebral body;
furthermore, the operation of forming the arc-shaped cavity can be operated once according to the actual operation condition, then the matched bendable saccule penetrates into the formed arc-shaped cavity, the saccule expands the cavity, the bendable saccule is taken out, the plug assembly 4 of the invention is taken out, the injection interface of the bone cement injector is connected with the side interface of the Y-shaped connecting piece 21 of the invention, the medical bending controllable puncture needle is held by hand to penetrate the puncture channel at the front end of the metal outer tube 31 into the vertebral body, the screw cap 11 is adjusted to lead the end 32 of the outer tube to reach the cavity in the vertebral body, then the bone cement injection is started, the position of the medical bending controllable puncture needle of the invention in the vertebral body is changed by adjusting the handle and the screw cap 11 in the process of injecting the bone cement, and the cavity in the vertebral body is filled with the bone cement and then the;
or further, the operation of forming the arc-shaped cavity can be operated for a plurality of times according to the actual operation condition, and by repeating the operation of forming the arc-shaped cavity for a plurality of times, more arc-shaped cavities are formed at different positions in the vertebral body, so that the cavity in the vertebral body is enlarged, when the size and the position of the cavity can meet the cavity requirement of injecting bone cement required by the operation, taking out the invention, taking out the plug component 4 of the invention, connecting the injection interface of the bone cement injector with the side end interface of the Y-shaped connecting piece 21 of the invention, holding the medical curvature controllable puncture needle of the invention by hand to penetrate the puncture channel at the front end of the metal outer tube 31 into the vertebral body, adjusting the screw cap 11 to lead the end 32 of the outer tube to reach the inner cavity of the vertebral body, then, beginning to inject bone cement, changing the position of the medical curvature controllable puncture needle in the vertebral body by adjusting the handle and the screw cap 11 in the process of injecting the bone cement, and taking out the medical curvature controllable puncture needle after filling the cavity in the vertebral body with the bone cement;
and further, carrying out subsequent operation work until the vertebroplasty operation is completed.
It should be noted that although the working process of the present invention is described in the specification by taking vertebroplasty as an example, the application of the present invention is not limited to the case described in the specification, and the present invention may be used in other fields in practical use.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010104784.8A CN111096778A (en) | 2020-02-20 | 2020-02-20 | A medical camber controllable puncture needle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010104784.8A CN111096778A (en) | 2020-02-20 | 2020-02-20 | A medical camber controllable puncture needle |
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| CN111096778A true CN111096778A (en) | 2020-05-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010104784.8A Pending CN111096778A (en) | 2020-02-20 | 2020-02-20 | A medical camber controllable puncture needle |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200374669Y1 (en) * | 2004-10-01 | 2005-02-02 | 박태호 | osteoplasty needle set for injecting bone cement |
| CN101909532A (en) * | 2007-11-16 | 2010-12-08 | 奥赛恩治疗公司 | Steerable vertebroplasty system with cavitation feature |
| WO2011111652A1 (en) * | 2010-03-09 | 2011-09-15 | 学校法人 聖マリアンナ医科大学 | Bone cement injection puncture needle |
| WO2014135029A1 (en) * | 2013-03-04 | 2014-09-12 | 宁波华科润生物科技有限公司 | Cannula with adjustable corner for delivering bone filler |
| CN104116545A (en) * | 2014-06-23 | 2014-10-29 | 上海凯利泰医疗科技股份有限公司 | Device for forming cavity in centrum |
| WO2015085836A1 (en) * | 2013-12-12 | 2015-06-18 | 宁波华科润生物科技有限公司 | Bone filler implanting system |
| CN206463052U (en) * | 2016-08-24 | 2017-09-05 | 普霖医疗科技(广州)有限公司 | A kind of vertebral plasty instrument of bendable front end |
| CN108210059A (en) * | 2018-03-05 | 2018-06-29 | 上海朗迈医疗器械科技有限公司 | A kind of vertebra former of controllable bending |
| CN109394302A (en) * | 2018-12-11 | 2019-03-01 | 依奈德医疗技术（上海）有限公司 | Controllable bending vertebral body shaper and its component and method |
| CN211749949U (en) * | 2020-02-20 | 2020-10-27 | 苏州爱得科技发展股份有限公司 | Medical puncture needle with controllable bending degree |
-
2020
- 2020-02-20 CN CN202010104784.8A patent/CN111096778A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200374669Y1 (en) * | 2004-10-01 | 2005-02-02 | 박태호 | osteoplasty needle set for injecting bone cement |
| CN101909532A (en) * | 2007-11-16 | 2010-12-08 | 奥赛恩治疗公司 | Steerable vertebroplasty system with cavitation feature |
| WO2011111652A1 (en) * | 2010-03-09 | 2011-09-15 | 学校法人 聖マリアンナ医科大学 | Bone cement injection puncture needle |
| WO2014135029A1 (en) * | 2013-03-04 | 2014-09-12 | 宁波华科润生物科技有限公司 | Cannula with adjustable corner for delivering bone filler |
| WO2015085836A1 (en) * | 2013-12-12 | 2015-06-18 | 宁波华科润生物科技有限公司 | Bone filler implanting system |
| CN104116545A (en) * | 2014-06-23 | 2014-10-29 | 上海凯利泰医疗科技股份有限公司 | Device for forming cavity in centrum |
| CN206463052U (en) * | 2016-08-24 | 2017-09-05 | 普霖医疗科技(广州)有限公司 | A kind of vertebral plasty instrument of bendable front end |
| CN108210059A (en) * | 2018-03-05 | 2018-06-29 | 上海朗迈医疗器械科技有限公司 | A kind of vertebra former of controllable bending |
| CN109394302A (en) * | 2018-12-11 | 2019-03-01 | 依奈德医疗技术（上海）有限公司 | Controllable bending vertebral body shaper and its component and method |
| CN211749949U (en) * | 2020-02-20 | 2020-10-27 | 苏州爱得科技发展股份有限公司 | Medical puncture needle with controllable bending degree |
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