Puncture assisting device for an intervention

Abstract

The application discloses a puncture assisting device for interventional therapy and belongs to the technical field of neurology. The puncture assisting device comprises a hoop, a cap body in rotational cooperation with the hoop, a first locking member for fixing the hoop and the cap body, the cap body is semispherical, a first opening slot is formed in the cap body along the generatrix of the cap body, and a puncture assembly is slidably arranged in the first opening slot along the length direction of the first opening slot. The puncture assembly comprises a puncture needle, a first ball and a second ball fixed to the outer side of the puncture needle, an arc-shaped slot matched with the second ball is formed in the side wall of the first opening slot, the first ball is matched with a ball sleeve, the ball sleeve is fixedly connected with a guide rod, a sliding support is slidably arranged on the cap body, a guide hole matched with the guide rod is formed in the sliding support, and the guide rod and the sliding support are fixed through a second locking member. The device can position the puncture needle before puncture, is stable in positioning and convenient to adjust.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of neurology, and particularly relates to a puncture assisting device for interventional therapy. BACKGROUND

[0002] Interventional puncture therapy is a treatment method for introducing special catheters, guide wires and other precision instruments into the body under the guidance of medical imaging equipment to diagnose and locally treat pathological conditions in the body. Interventional puncture therapy is also gradually used to treat cerebrovascular diseases. The surgical process of nerve interventional puncture requires positioning the puncture needle and then puncturing by pushing the needle handle. The existing nerve intervention cannot accurately position the puncture needle, and the position of the puncture needle needs to be repeatedly adjusted, resulting in difficult subsequent surgical operation. SUMMARY

[0003] Therefore, the purpose of the present application is to provide a puncture assisting device for interventional therapy, which can position the puncture needle before puncture, and the positioning is stable and convenient to adjust.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0005] The puncture assisting device for interventional therapy comprises a hoop, a cap body in rotational cooperation with the hoop, a first locking member for fixing the hoop and the cap body, the cap body is semispherical, a first opening slot is formed on the cap body along the generatrix of the cap body, and a puncture assembly is slidably fitted in the first opening slot along the length direction of the first opening slot; the puncture assembly comprises a puncture needle, a first ball and a second ball fixed on the outer side of the puncture needle, an arc-shaped slot matched with the second ball is formed on the side wall of the first opening slot; the first ball is matched with a ball sleeve, the ball sleeve is fixedly connected with a guide rod, a sliding bracket is further slidably arranged on the cap body, a guide hole matched with the guide rod is formed on the sliding bracket, and the guide rod and the sliding bracket are fixed through a second locking member.

[0006] Further, the puncture needle comprises a needle body and a needle sleeve slidably arranged on the outer side of the needle body, the first ball and the second ball are integrally formed on the outer side surface of the needle sleeve, the inner side of the needle sleeve forms a sliding channel for the needle body, the upper end of the needle body is provided with an injection connector, a fixed stopper is fixed in the middle of the sliding channel, a tension spring is sleeved on the outer side of the needle body, and the two ends of the tension spring are fixedly connected with the fixed stopper and the injection connector respectively.

[0007] Further, an extension device is fixed on the outer side of the needle sleeve, an output rod of the extension device extends to the inner side of the needle sleeve, the output rod can be extended or retracted to be engaged with or accommodated by the injection connector, a trigger switch is arranged on the hoop, and the trigger switch can correspond to the extension device to control the extension and retraction of the extension device.

[0008] Further, the trigger switch comprises baffle plates evenly distributed along the circumference of the hoop, the baffle plates are arranged obliquely on the lower side of the hoop, the baffle plates are hinged to the hoop, pressure sensors are fixed on the lower end surface of the hoop, the back side of the baffle plate is connected to the pressure sensor through a spring, and the telescopic device is controlled to be deepened to engage the injection connector when the pressure sensors act simultaneously.

[0009] Further, the sliding support comprises an arc-shaped plate and a vertical plate fixed on the arc-shaped plate, the guide hole is arranged on the vertical plate of the sliding support, a sliding rod is fixedly arranged at the bottom of the arc-shaped plate, a second opening slot corresponding to the sliding rod is arranged on the cap body, and the sliding rod and the cap body are fixed through a third locking piece.

[0010] Further, a threaded hole is arranged on the cap body, a positioning rod is matched in the threaded hole, the inner end of the positioning rod penetrates into the cap body, a positioning plate is hinged to the inner end of the positioning rod, and a compression spring is simultaneously sleeved on the outer side of the positioning rod.

[0011] Further, an annular groove matched with the end surface of the cap body is formed on the upper end surface of the hoop, and a positioning ring is arranged at the opening of the upper end of the annular groove, and the positioning ring is positioned and matched with the cap body.

[0012] The present application has the following beneficial effects:

[0013] The hoop is used for sleeving on the head of a patient, the cap body matched with the rotation of the hoop can change the angle of the puncture assembly, the displacement of the cap body along the generatrix can make the puncture assembly be at different positions as required, and thus a suitable puncture point can be selected to adapt to the needs of the scene.

[0014] In the device, an arc-shaped slot matched with the second sphere is arranged on the side wall of the first opening slot, the puncture needle is slidable, the first sphere is matched with a ball sleeve, the ball sleeve is fixedly connected with a guide rod, a guide hole matched with the guide rod is arranged on the sliding support, and the guide rod and the sliding support are fixed through a second locking piece, so that the puncture needle is fixed, positioned and fixed more stably, and the operation is facilitated.

[0015] Other advantages, objects, and features of the present application will be apparent to those skilled in the art from the following specification, and will be learned from practice of the present application. The objects and other advantages of the present application can be achieved and obtained by the following specification. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to make the objects, technical solutions and beneficial effects of the present application clearer, the present application provides the following drawings for description:

[0017] Fig. 1 This is a schematic diagram of the structure of the device of the present invention;

[0018] Fig. 2 This is a schematic diagram of the puncture needle in this embodiment;

[0019] Fig. 3 This is a schematic diagram of the cap's structure.

[0020] The following are the markings in the attached diagram: hoop 1, cap 2, first opening groove 3, puncture assembly 4, puncture needle 5, first sphere 6, second sphere 7, arc groove 8, ball sleeve 9, guide rod 10, sliding bracket 11, needle body 12, needle sleeve 13, sliding channel 14, injection connector 15, fixed stop 16, tension spring 17, telescopic device 18, baffle 19, pressure sensor 20, spring 21, arc plate 22, vertical plate 23, slide rod 24, second opening groove 25, threaded hole 26, positioning rod 27, positioning plate 28, compression spring 29, annular groove 30, positioning ring 31. Detailed Implementation

[0021] like Figs. 1-3 As shown, this invention discloses a puncture aid for interventional therapy, comprising a hoop 1, a cap 2 that rotatably engages with the hoop 1, and a first locking member for securing the hoop 1 and the cap 2. The hoop 1 is annular in shape and its size is adapted to the normal human head, allowing it to be easily worn on the patient's head. The cap 2 is not perfectly spherical; its shape can be tailored to meet specific needs. A screw is threaded onto the outer side of the hoop 1, and the inner end of the screw can penetrate into the hoop 1 to secure it to the cap 2.

[0022] Specifically, the cap body 2 can also be hemispherical. To facilitate the description of the direction of the first opening groove 3, the first opening groove 3 is provided on the cap body 2 along the generatrix of the cap body 2. The first opening groove 3 spans at least half of the cap body 2. A piercing component 4 is slidably fitted inside the first opening groove 3 along the length direction of the first opening groove 3. The piercing component 4 can be displaced along the first opening groove 3.

[0023] In the device, the puncture assembly 4 comprises a puncture needle 5, a first ball 6 fixed outside the puncture needle 5, and a second ball 7, the outer diameter of the first ball 6 is smaller, and an arc-shaped slot 8 matched with the second ball 7 is formed on the side wall of the first opening slot 3; the arc-shaped slot 8 also extends along the length direction of the first opening slot 3, through the limiting effect of the arc-shaped slot 8, the second ball 7 can slide in the arc-shaped slot 8 and not fall off. The first ball 6 is matched with a ball sleeve 9, the ball sleeve 9 is matched with the first ball 6 in all directions, the ball sleeve 9 is fixedly connected with a guide rod 10, a sliding support 11 is also slidably arranged on the cap body 2, a guide hole matched with the guide rod 10 is formed on the sliding support 11, the guide rod 10 can be slidably arranged in the guide hole, and the guide rod 10 and the sliding support 11 are fixed through a second locking member, so as to realize the fixation of the puncture needle 5.

[0024] In the embodiment, the puncture needle 5 comprises a needle body 12 and a needle sleeve 13 slidably arranged outside the needle body 12, under the pushing action of the injection handle at the rear end, the needle body 12 can pass out from the lower end of the needle sleeve 13, the first ball 6 and the second ball 7 are integrally formed on the outer side surface of the needle sleeve 13, and the standard can be unified. The inner side of the needle sleeve 13 forms a sliding channel 14 for the needle body 12, the upper end of the needle body 12 is provided with an injection connector 15 for cooperation with the injection handle, a fixed stopper 16 is fixed in the middle of the sliding channel 14, the outer side of the needle body 12 is sleeved with a tension spring 17, and the two ends of the tension spring 17 are fixedly connected with the fixed stopper 16 and the injection connector 15 respectively. Under normal conditions, the needle body 12 can be hidden in the needle sleeve 13 under the action of the tension spring 17, so as to prevent the needle body 12 from causing damage to the patient's head when the cap body 2 is worn on the patient's head.

[0025] In the embodiment, the outer side of the needle sleeve 13 is fixedly connected with a telescopic device 18, the telescopic device 18 can adopt a linear displacement motor, the output rod of the telescopic device 18 extends to the inner side of the needle sleeve 13, and the output rod can be telescopic to be clamped or disengaged with the injection connector 15. A trigger switch is arranged on the hoop 1, and the trigger switch can correspond to the telescopic device 18 to control the telescopic device 18 to be telescopic. Specifically, the trigger switch comprises baffle plates 19 evenly distributed along the circumference of the hoop 1, the baffle plates 19 are arranged on the lower side of the hoop 1 in an inclined manner, the baffle plates 19 are hinged to the hoop 1, the lower end surface of the hoop 1 is fixedly connected with a pressure sensor 20, the back side of the baffle plate 19 is connected to the pressure sensor 20 through a spring 21, when the device is worn on the patient's head, the control telescopic device 18 is deepened to clamp the injection connector 15 when all the pressure sensors 20 act at the same time, automatic clamping can be realized, so as to avoid the misoperation of the staff or the patient, and subsequent manual control of the telescopic device 18 is released to facilitate subsequent operation.

[0026] In the embodiment, the sliding support 11 comprises an arc-shaped plate 22 and a vertical plate 23 fixed on the arc-shaped plate 22, a guide hole is arranged on the vertical plate 23 of the sliding support 11, a slide rod 24 is fixed on the bottom of the arc-shaped plate 22, a second opening slot 25 corresponding to the slide rod 24 is arranged on the cap body 2, and the slide rod 24 and the cap body 2 are fixed by a third locking member.

[0027] In the embodiment, a threaded hole 26 is arranged on the cap body 2, a positioning rod 27 is matched in the threaded hole 26, the inner end of the positioning rod 27 penetrates into the cap body 2, a positioning plate 28 is hinged on the inner end of the positioning rod 27, and a compression spring 29 is sleeved on the outer side of the positioning rod 27. By arranging the positioning plate 28, the head of the patient can be positioned, the shape of the head of the patient can be adapted, and the patient can wear more comfortably.

[0028] In the embodiment, an annular groove 30 matched with the end surface of the cap body 2 is formed on the upper end surface of the hoop 1, a positioning ring 31 is arranged on the upper end opening of the annular groove 30, and the positioning ring 31 is positioned and matched with the cap body 2 to avoid the hoop 1 from falling off.

[0029] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present application but not limit the present application. Although the present application has been described in detail through the above preferred embodiments, those skilled in the art should understand that various modifications can be made in form and details without departing from the scope of the present application defined by the claims.

Claims

1. An intervention treatment puncture assist device characterized by: The application relates to a cap body, a first locking member for fixing the hoop and the cap body, a first opening groove formed on the cap body along the generatrix of the cap body, a puncture assembly slidingly matched with the first opening groove, a first ball and a second ball fixed on the outer side of the puncture needle, an arc-shaped groove matched with the second ball formed on the side wall of the first opening groove, a ball sleeve matched with the first ball, a guide rod fixedly connected with the ball sleeve, a sliding support slidingly arranged on the cap body, a guide hole matched with the guide rod formed on the sliding support, and a second locking member for fixing the guide rod and the sliding support. The puncture needle comprises a needle body, a needle sleeve slidingly arranged on the outer side of the needle body, and the first ball and the second ball integrally formed on the outer side surface of the needle sleeve. The inner side of the needle sleeve forms a sliding channel for the needle body. The upper end of the needle body is provided with an injection joint. A fixed stopper is fixed on the middle part of the sliding channel. A tension spring is arranged on the outer side of the needle body and fixedly connected with the fixed stopper and the injection joint at both ends. An extension device is fixed on the outer side of the needle sleeve. The output rod of the extension device extends to the inner side of the needle sleeve. The output rod can be extended or retracted to be engaged with or disengaged from the injection joint. A trigger switch is arranged on the hoop. The trigger switch can correspond to the extension device to control the extension and retraction of the extension device. The trigger switch comprises a plurality of baffle plates arranged along the circumference of the hoop. The baffle plates are arranged on the lower side of the hoop in an inclined mode. The baffle plates are hingedly connected with the hoop. A pressure sensor is fixed on the lower end surface of the hoop. The back side of the baffle plate is connected with the pressure sensor through a spring. When the pressure sensors act simultaneously, the extension device is controlled to be deeply engaged with the injection joint. The extension device is manually controlled to be disengaged from the injection joint.

2. The puncture assist of claim 1, wherein: The sliding support comprises an arc-shaped plate and a vertical plate fixed on the arc-shaped plate. The guide hole is formed on the vertical plate of the sliding support. The bottom of the arc-shaped plate is fixedly provided with a sliding rod. A second opening groove corresponding to the sliding rod is formed on the cap body. The sliding rod and the cap body are fixed through a third locking member.

3. The puncture assist of claim 1, wherein: A threaded hole is formed on the cap body. A positioning rod is matched with the threaded hole. The inner end of the positioning rod penetrates into the cap body. A positioning plate is hingedly connected with the inner end of the positioning rod. A compression spring is simultaneously arranged on the outer side of the positioning rod.

4. The puncture assist of claim 1, wherein: The upper end surface of the hoop is formed with an annular groove matched with the end surface of the cap body. A positioning ring is arranged at the opening of the upper end of the annular groove. The positioning ring is positioned and matched with the cap body.

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