Puncture positioner for minimally invasive surgery

Abstract

The utility model relates to the technical field of puncture positioners, in particular to a puncture positioner for minimally invasive surgery. The utility model provides a puncture positioner for minimally invasive surgery, which comprises a transverse positioning needle, a longitudinal positioning needle and a transverse positioning needle, and scales are arranged on the transverse positioning needle along the length direction of the transverse positioning needle; the first longitudinal positioning rod and the second longitudinal positioning rod are sequentially and horizontally mounted on the transverse positioning needle, and scales are arranged on the first longitudinal positioning rod and the second longitudinal positioning rod; and the angle adjuster is installed on the transverse positioning needle and located between the first longitudinal positioning rod and the second longitudinal positioning rod, and the angle adjuster is used for positioning the puncture angle. The puncture target spot, the puncture angle and the puncture depth are calculated in advance, and the designed positioning puncture outfit is used for assistance, so that the target spot can be accurately punctured, the ray exposure time of a patient is shortened, the pain of the patient is reduced, and the problem that re-puncture is needed due to operation errors is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of puncture locators, in particular to a puncture locator for minimally invasive surgery. Background Art

[0002] With the opening and development of pain medicine departments in my country, minimally invasive pain surgeries are increasing. The difficulty and risk of puncture are also increasing, especially for minimally invasive surgeries of the head, neck, and chest.

[0003] Most puncture surgeries are performed under CT or color ultrasound positioning, lacking precise auxiliary puncture devices, and the accuracy of the puncture angle is very important. Currently, the puncture steps are positioned based on the doctor's experience and operation, and errors are prone to occur during the operation. Once the puncture deviates, it needs to be re-punctured, which causes trouble to both patients and doctors, thus affecting the safety of minimally invasive surgery. Utility Model Content

[0004] (I) The problem to be solved by the present invention is that currently the puncture step is performed by relying on the doctor's experience and operation for positioning, and errors are easily generated during the operation. Once the puncture deviates, it needs to be punctured again, which brings trouble to both the patient and the doctor, thereby affecting the safety of minimally invasive surgery.

[0005] (II) Technical solution

[0006] Minimally invasive surgical puncture locator, including:

[0007] A transverse positioning needle, wherein the transverse positioning needle is provided with scales along its length direction;

[0008] a first longitudinal positioning rod and a second longitudinal positioning rod, wherein the first longitudinal positioning rod and the second longitudinal positioning rod are horizontally mounted on the transverse positioning needle in sequence, and the first longitudinal positioning rod and the second longitudinal positioning rod are both provided with scales;

[0009] An angle adjuster, which is installed on the transverse positioning needle and is located between the first longitudinal positioning rod and the second longitudinal positioning rod, and is used to position the puncture angle;

[0010] An arc-shaped guide rail, two ends of which are respectively connected to two ends of the transverse positioning needle;

[0011] A laser pen is installed on the arc-shaped guide rail and can slide along the arc-shaped guide rail, and the ray emitted by the laser pen passes through the axis of the arc-shaped guide rail.

[0012] According to an embodiment of the utility model, a slider is slidably mounted on the arc-shaped guide rail, and the laser pen is detachably mounted on the bottom of the slider.

[0013] According to an embodiment of the present invention, the angle adjuster is a protractor.

[0014] According to an embodiment of the utility model, the first longitudinal positioning rod is perpendicular to the transverse positioning needle, and the first longitudinal positioning rod is arranged in the middle of the transverse positioning needle (1).

[0015] According to an embodiment of the present utility model, the second longitudinal positioning rod is perpendicular to the transverse positioning needle, and the second longitudinal positioning rod is close to the end of the transverse positioning needle.

[0016] According to an embodiment of the present invention, the length of the first longitudinal positioning rod is greater than the length of the second longitudinal positioning rod.

[0017] According to an embodiment of the utility model, a buckle piece matched with the transverse positioning pin is provided on the back side of the angle adjuster.

[0018] Beneficial effects of the utility model:

[0019] The utility model provides a minimally invasive surgical puncture locator, comprising: a transverse positioning needle, on which scales are arranged along the length direction thereof; a first longitudinal positioning rod and a second longitudinal positioning rod, which are horizontally mounted on the transverse positioning needle in sequence, and on which scales are arranged; an angle adjuster, which is mounted on the transverse positioning needle and located between the first longitudinal positioning rod and the second longitudinal positioning rod, and is used to locate the puncture angle; an arc guide rail, the two ends of which are respectively connected to the two ends of the transverse positioning needle; and a laser pen, which is mounted on the arc guide rail and can slide along the arc guide rail, and the rays emitted by the laser pen pass through the axis of the arc guide rail.

[0020] By pre-calculating the puncture target, puncture angle, and puncture depth, and then using the designed positioning puncture device to assist, the target can be punctured accurately, reducing the patient's radiation exposure time and pain, and avoiding the need for re-puncture due to operational errors. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 A front view provided for an embodiment of the utility model;

[0023] Figure 2 A three-dimensional diagram provided for an embodiment of the utility model;

[0024] Figure 3 A side view of an angle adjuster provided in an embodiment of the utility model.

[0025] Icons: 1. Horizontal positioning pin; 2. First longitudinal positioning rod; 3. Second longitudinal positioning rod; 4. Angle adjuster; 401. Fastener; 5. Arc guide rail; 6. Slider; 7. Laser pen. DETAILED DESCRIPTION

[0026] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] like Figure 1-Figure 3 As shown, an embodiment of the utility model provides a minimally invasive surgical puncture locator, comprising:

[0028] A transverse positioning needle 1, on which scales are provided along its length direction;

[0029] A first longitudinal positioning rod 2 and a second longitudinal positioning rod 3, the first longitudinal positioning rod 2 and the second longitudinal positioning rod 3 are horizontally mounted on the transverse positioning needle 1 in sequence, and the first longitudinal positioning rod 2 and the second longitudinal positioning rod 3 are both provided with scales;

[0030] An angle adjuster 4, which is installed on the transverse positioning needle 1 and is located between the first longitudinal positioning rod 2 and the second longitudinal positioning rod 3. The angle adjuster 4 is used to position the puncture angle;

[0031] An arc-shaped guide rail 5, two ends of which are respectively connected to two ends of the transverse positioning needle 1;

[0032] The laser pen 7 is installed on the arc-shaped guide rail 5 and can slide along the arc-shaped guide rail 5 . The ray emitted by the laser pen 7 passes through the axis of the arc-shaped guide rail 5 .

[0033] Preferably, in this embodiment, the transverse positioning needle 1 is similar in shape to a Kirschner wire, and its outer shape is rod-shaped, and one end of the transverse positioning needle 1 is sharp. The transverse positioning needle 1 is provided with scales along its length, and the function of the transverse positioning needle 1 is to coincide with the horizontal line positioning of the CT (computer tomography scanner).

[0034] Preferably, Figure 1As shown, the first longitudinal positioning rod 2 is horizontally arranged at the middle position of the transverse positioning needle 1, the first longitudinal positioning rod 2 is arranged vertically with the transverse positioning needle 1, and a scale is arranged on the first longitudinal positioning rod 2. One end of the first longitudinal positioning rod 2 is located in front of the transverse positioning needle 1, and the other end is located behind the transverse positioning needle 1, that is, the transverse positioning needle 1 is connected to the middle position of the first longitudinal positioning rod 2.

[0035] Further, the second longitudinal positioning rod 3 is horizontally arranged on the transverse positioning needle 1, and the second longitudinal positioning rod 3 is close to the end of the transverse positioning needle 1, the second longitudinal positioning rod 3 is vertically arranged with the transverse positioning needle 1, and a scale is arranged on the second longitudinal positioning rod 3. Specifically, one end of the second longitudinal positioning rod 3 is located in front of the transverse positioning needle 1, and the other end thereof is located behind the transverse positioning needle 1, that is, the transverse positioning needle 1 is connected to the middle position of the second longitudinal positioning rod 3.

[0036] It should be noted that the function of the first longitudinal positioning rod 2 is to locate the center of the patient and to further determine the position of the puncture point, and the function of the second longitudinal positioning rod 3 is to assist in peripheral positioning so as to further determine the position of the puncture point.

[0037] In this embodiment, the length of the transverse positioning needle 1 is 30 cm-50 cm, preferably 40 cm. The length of the first longitudinal positioning rod 2 is 10 cm, and the length of the second longitudinal positioning rod 3 is 6 cm.

[0038] What you need to know is that Figure 2 As shown, the middle of the back of the first longitudinal positioning rod 2 and the second longitudinal positioning rod 3 are both provided with a U-shaped socket adapted to the transverse positioning pin 1, so when installing the first longitudinal positioning rod 2 and the second longitudinal positioning rod 3, it is only necessary to insert the U-shaped sockets on the first longitudinal positioning rod 2 and the second longitudinal positioning rod 3 into the transverse positioning pin 1. In order to further fix the first longitudinal positioning rod 2 and the second longitudinal positioning rod 3, the first longitudinal positioning rod 2 and the second longitudinal positioning rod 3 can be bonded to the transverse positioning pin 1 by glue.

[0039] Preferably, the angle adjuster 4 is a goniometer, which is mounted on the transverse positioning needle 1 and located between the first longitudinal positioning rod 2 and the second longitudinal positioning rod 3. After the angle is calculated, the goniometer can be used to perform puncture at a predetermined angle to ensure that the puncture angle is correct.

[0040] Preferably, the two ends of the arc guide rail 5 are respectively connected to the two ends of the transverse positioning pin 1, a slider 6 is slidably installed on the arc guide rail 5, and the laser pen 7 is detachably installed on the lower surface of the slider 6. The laser pen 7 is perpendicular to the lower surface of the slider 6 so that the rays emitted by the laser pen 7 will pass through the axis of the arc guide rail 5.

[0041] Optional, such as Figure 3As shown, a buckle 401 is provided on the back of the protractor. The buckle 401 is hook-shaped and can hook and rest on the transverse positioning needle 1.

[0042] Optionally, a flange is provided on the top side wall of the laser pen 7, and screw holes are provided on the lower surface of the slider 6. When installing the laser pen 7, it is only necessary to align the flange on the top of the laser pen 7 with the screw holes on the lower surface of the slider 6 and then fix them with screws. This makes it convenient to install and disassemble the laser pen 7.

[0043] In this embodiment, when performing a puncture operation, the doctor first determines the puncture target, puncture angle and puncture depth on the CT image, and then places the positioning puncture device above the patient's body, and ensures that the first longitudinal positioning rod 2 fits the middle position of the patient's body, and the length direction of the first longitudinal positioning rod 2 is the same as the patient's height direction. At this time, the second longitudinal positioning rod 3 is close to the edge of the patient's body to assist in peripheral positioning. At the same time, the protractor 4 is placed at the position to be punctured, and then the slider 6 is slid to adjust the position of the laser pen 7. At this time, the relationship between the laser emitted by the laser pen 7 and the scale on the protractor 4 is observed, and the laser angle emitted by the laser pen 7 is ensured to be consistent with the preset puncture angle through the protractor 4. Finally, the laser and the protractor 4 are used as an aid to perform puncture at the preset angle. For example, when the puncture angle is 60°, it is necessary to ensure that the laser emitted by the laser pen 7 is aligned with the oblique line corresponding to 60° on the protractor 4. Then perform puncture according to the adjusted position, and then do CT to further determine the position of the puncture.

[0044] Therefore, by using the positioning puncture device in this embodiment to assist the puncture work, the target point can be punctured accurately, the patient's radiation exposure time and pain can be reduced, and the problem of needing to re-puncture due to operating errors can be avoided.

[0045] In the description of the present invention, it should be noted that the terms "upper" and "lower" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0046] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the insides of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A minimally invasive surgical puncture locator, characterized in that: include: A transverse positioning needle (1), wherein the transverse positioning needle (1) is provided with scales along its length direction; A first longitudinal positioning rod (2) and a second longitudinal positioning rod (3), wherein the first longitudinal positioning rod (2) and the second longitudinal positioning rod (3) are horizontally mounted on the transverse positioning needle (1) in sequence, and the first longitudinal positioning rod (2) and the second longitudinal positioning rod (3) are both provided with scales; An angle adjuster (4), the angle adjuster (4) being mounted on the transverse positioning needle (1) and being located between the first longitudinal positioning rod (2) and the second longitudinal positioning rod (3), the angle adjuster (4) being used to position the puncture angle; An arc-shaped guide rail (5), wherein two ends of the arc-shaped guide rail (5) are respectively connected to two ends of the transverse positioning needle (1); A laser pen (7), the laser pen (7) being mounted on the arc-shaped guide rail (5) and being able to slide along the arc-shaped guide rail (5), wherein the rays emitted by the laser pen (7) pass through the axis of the arc-shaped guide rail (5).

2. The minimally invasive surgical puncture locator according to claim 1, characterized in that: A sliding block (6) is slidably mounted on the arc-shaped guide rail (5), and the laser pen (7) is detachably mounted on the bottom of the sliding block (6).

3. The minimally invasive surgical puncture locator according to claim 1, characterized in that: The angle adjuster (4) is a protractor.

4. The minimally invasive surgical puncture locator according to claim 1, characterized in that: The first longitudinal positioning rod (2) is perpendicular to the transverse positioning needle (1), and the first longitudinal positioning rod (2) is arranged in the middle of the transverse positioning needle (1).

5. The minimally invasive surgical puncture locator according to claim 4, characterized in that: The second longitudinal positioning rod (3) is perpendicular to the transverse positioning needle (1), and the second longitudinal positioning rod (3) is close to the end of the transverse positioning needle (1).

6. The minimally invasive surgical puncture locator according to claim 5, characterized in that: The length of the first longitudinal positioning rod (2) is greater than the length of the second longitudinal positioning rod (3).

7. The minimally invasive surgical puncture locator according to claim 3, characterized in that A buckle (401) adapted to the transverse positioning needle (1) is provided on the back of the angle adjuster (4).

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