Disposable combined electrical impedance navigation detection spine puncture needle

Abstract

The utility model provides a disposable combined electrical impedance navigation detection spine puncture needle which comprises a navigation handle, a puncture probe arranged at the lower end of the navigation handle and a needle sleeve arranged on the outer side of the puncture probe in a sleeving mode. The upper end of the puncture probe is connected with a probe handle, and the probe handle is detachably connected with the navigation handle; a magnetic attraction male head is arranged in the navigation handle, a magnetic attraction female base matched with the magnetic attraction male head is arranged in the probe handle, and the puncture probe is in circuit communication with an electronic element in the navigation handle in a magnetic attraction mode. According to the utility model, the needle inserting depth and direction of the pedicle screw can be judged according to the detected electrical impedance value, accidental injury and deviation caused by the fact that the pedicle screw drills through the cone can be prevented, the navigation handle can be detached during X-ray positioning, unnecessary false imaging can be reduced, and after an operation is completed, the puncture probe is discarded as a disposable instrument, so that the operation cost is reduced. And the navigation handle can be reused after being disinfected, so that resources are effectively saved, and unnecessary waste is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of medical devices, and particularly relates to a disposable combined electric impedance navigation detection spinal puncture needle. BACKGROUND

[0002] Osteoporotic vertebral compression fracture (OVCF) is the most common type of osteoporotic fracture, which brings serious physical and mental harm to patients, and also brings heavy economic burden to families and society. With the progress of science and technology, percutaneous vertebroplasty (PVP) and percutaneous kyphoplasty (PKP) gradually become the mainstream operation of OVCF due to their minimally invasive advantages. The operation usually needs the assistance of C-arm navigation, but this navigation mode has many defects, and multiple X-ray irradiation is needed during the operation, and doctors, nurses and patients need to be exposed to X-rays multiple times, which has great side effects on doctors, nurses and patients.

[0003] At present, the electric impedance navigation detection spinal puncture needle with navigation function used in hospital operations includes a navigation handle, a puncture needle and a needle sleeve, wherein the puncture needle and the navigation handle are fixedly connected together, and this structure has defects in actual use. First, the handle imaging will interfere with the doctor's judgment when vertical perspective is used. Second, the handle is a non-contact instrument, and the cost is relatively high, and the overall disposable use will cause resource waste.

[0004] In summary, there is an urgent need to design a disposable combined electric impedance navigation detection spinal puncture needle which overcomes the above problems. Utility model content

[0005] The utility model aims at providing a disposable combined electric impedance navigation detection spinal puncture needle which overcomes the above problems.

[0006] In order to realize the above purpose, the utility model adopts the technical scheme of a disposable combined electric impedance navigation detection spinal puncture needle, which comprises:

[0007] A navigation handle, a puncture probe arranged at the lower end of the navigation handle, and a needle sleeve arranged outside the puncture probe;

[0008] The upper end of the puncture probe is connected with a probe handle, and the probe handle is detachably connected with the navigation handle;

[0009] The navigation handle is internally provided with a magnetic male head, the probe handle is internally provided with a magnetic female seat matched with the magnetic male head, and the puncture probe is in circuit communication with the electronic elements in the navigation handle through magnetic attraction.

[0010] The purposes and technical problems of the utility model can also be further realized by the following technical measures.

[0011] Further, the navigation handle is internally provided with a computing circuit board, an electrical impedance detection module and a storage battery, the electrical impedance detection module and the magnetic male head are respectively installed on the computing circuit board, and the storage battery is connected with the computing circuit board through wires.

[0012] Further, the probe handle is internally provided with a probe PCB and a buzzer, the buzzer and the magnetic female seat are respectively installed on the probe PCB, and the end of the puncture probe is electrically connected with the probe PCB.

[0013] Further, the buzzer is a patch buzzer.

[0014] Further, the lower end of the navigation handle is respectively provided with buckles on both sides, and the upper end of the probe handle is provided with clamping grooves matched with the buckles.

[0015] Further, one end of the navigation handle is provided with a switch button, and the switch button is electrically connected with the computing circuit board.

[0016] Further, the switch button is a silica gel button.

[0017] Further, the puncture probe comprises three layers from inside to outside, the innermost layer is a stainless steel needle, the middle layer is an insulation layer, and the outermost layer is a stainless steel layer, and the lower end of the stainless steel needle extends out of the insulation layer and the stainless steel layer.

[0018] Compared with the prior art, the utility model has the advantages that:

[0019] The utility model discloses a disposable combined type electrical impedance navigation detection spinal puncture needle, which is detachably connected with the navigation handle and the probe handle of the puncture probe, and realizes circuit communication of the puncture probe and the electronic elements in the navigation handle through magnetic attraction, can judge the needle depth and direction of the pedicle screw, prevents the pedicle screw from drilling through the cone to cause injury and deviation, can be separated from the navigation handle during X-ray positioning, reduces unnecessary false imaging, and can be separated from the puncture probe after the operation, the puncture probe is discarded as a disposable instrument, the navigation handle can be repeatedly used after sterilization, resources are effectively saved, and unnecessary waste is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is an exploded view of the disposable combined electric impedance navigation detection spinal puncture needle provided by the utility model;

[0021] Figure 2 is a cross-sectional structure schematic view of the disposable combined electric impedance navigation detection spinal puncture needle provided by the utility model;

[0022] Figure 3 is Figure 2 the enlarged schematic view of A in the middle;

[0023] Marked with the following:

[0024] 1, navigation handle;11, magnetic male head;12, calculation circuit board;13, electric impedance detection module;14, battery;15, buckle;16, switch button;

[0025] 2, puncture probe;21, probe handle;22, magnetic female seat;23, probe PCB;24, buzzer;25, card slot;26, stainless steel needle;27, insulating layer;28, stainless steel layer;

[0026] 3, needle cover. Specific implementation

[0027] In order to make the utility model's purpose, technical scheme and advantage more clearly, the following is combined with the drawings and example, and the utility model is further detailedly explained.It should be understood that the specific example described here is only used to explain the utility model, and is not used to limit the utility model.

[0028] Please refer to Figures 1 to 3 A kind of disposable combined electric impedance navigation detection spinal puncture needle, it includes:

[0029] Navigation handle 1, puncture probe 2 being arranged in the lower end of the navigation handle 1 and needle cover 3 being sleeved in the outer side of the puncture probe 2;

[0030] The upper end of the puncture probe 2 is connected with probe handle 21, and the probe handle 21 is detachably connected with the navigation handle 1;

[0031] The navigation handle 1 is provided with a magnetic male head 11, the probe handle 21 is provided with a magnetic female seat 22 matched with the magnetic male head 11, and the puncture probe 2 is connected with the electronic elements in the navigation handle 1 through magnetic attraction to realize circuit communication.

[0032] Preferably, the navigation handle 1 is provided with a computing circuit board 12, an electrical impedance detection module 13 and a storage battery 14, the electrical impedance detection module 13 and the magnetic male head 11 are respectively installed on the computing circuit board 12, and the storage battery 14 is connected with the computing circuit board 12 through a wire.

[0033] Preferably, the probe handle 21 is provided with a probe PCB 23 and a buzzer 24, the buzzer 24 and the magnetic female seat 22 are respectively installed on the probe PCB 23, and the end of the puncture probe 2 is electrically connected with the probe PCB 23. A hole is formed on the probe handle 21 corresponding to the position of the buzzer 24, so as to facilitate sound diffusion. After the probe handle 21 is connected with the navigation handle 1, the magnetic female seat 22 and the magnetic male head 11 are connected, and the puncture probe 2 and the electronic elements in the navigation handle 1 realize circuit communication, so as to facilitate detection of electrical impedance, judgment and real-time adjustment of the position of the needle.

[0034] Preferably, the buzzer 24 is a patch buzzer.

[0035] Preferably, the lower end of the navigation handle 1 is respectively provided with a buckle 15 on both sides, the upper end of the probe handle 21 is provided with a clamping groove 25 matched with the buckle 15, and the navigation handle 1 and the probe handle 21 are connected through the buckle, but the connection mode is not limited to the buckle, and any detachable connection mode can be used.

[0036] Preferably, one end of the navigation handle 1 is provided with a switch button 16, the switch button 16 is arranged at one end of the navigation handle 1 in the length direction, so as to facilitate the doctor to press the switch through the thumb or the index finger when holding the navigation handle 1, and the switch button 16 is electrically connected with the computing circuit board 12.

[0037] Preferably, the switch button 16 is a silica gel button, so as to facilitate cleaning and disinfection of the navigation handle 1.

[0038] Preferably, the puncture probe 2 comprises three layers from inside to outside, the innermost is a stainless steel needle 26, the middle is an insulating layer 27, and the outermost is a stainless steel layer 28, the lower end of the stainless steel needle 26 extends out of the insulating layer 27 and the stainless steel layer 28. Different human tissues have different resistance values, the puncture probe 2 has three layers in whole, which are: inner needle (stainless steel needle 26), insulating layer 27, and outer needle (stainless steel layer 28), when the combined puncture needle is used, the inner needle tip and the outer needle tip contact the human tissue to form a closed loop, the weak current flows from the inner needle tip to the outer needle tip, and the current size changes under the influence of the human tissue resistance, by calculating the current size, comparing the resistance values of different human tissues, the position of the needle tip can be judged, and the buzzer 24 is controlled to be turned on or off, so that the doctor can judge the position of the puncture needle in real time and make directional adjustment in time, and the misjudgment caused by excessive puncture is avoided. Specifically, the puncture probe 2 detects the resistance impedance, which belongs to the prior art and will not be described in detail here.

[0039] The above describes the utility model in combination with the embodiments, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range possessed by those skilled in the art without departing from the purpose of the utility model.

Claims

1. A disposable combined electric impedance navigation detection spinal puncture needle, comprising a navigation handle (1), a puncture needle (2) arranged at the lower end of the navigation handle (1), and a needle sleeve (3) sleeved outside the puncture needle (2), characterized in that: the upper end of the puncture needle (2) is connected with a needle handle (21), and the needle handle (21) is detachably connected with the navigation handle (1); a magnetic male head (11) is arranged in the navigation handle (1), a magnetic female seat (22) matched with the magnetic male head (11) is arranged in the needle handle (21), and the puncture needle (2) realizes circuit communication with the electronic elements in the navigation handle (1) through magnetic attraction.

2. The disposable combined electric impedance navigation probe spinal puncture needle according to claim 1, wherein, a calculation circuit board (12), an electric impedance detection module (13) and a storage battery (14) are arranged in the navigation handle (1), the electric impedance detection module (13) and the magnetic male head (11) are respectively mounted on the calculation circuit board (12), and the storage battery (14) is connected with the calculation circuit board (12) through a wire.

3. The disposable combined electric impedance navigation probe spinal puncture needle according to claim 2, wherein, a needle PCB (23) and a buzzer (24) are arranged in the needle handle (21), the buzzer (24) and the magnetic female seat (22) are respectively mounted on the needle PCB (23), and the end of the puncture needle (2) is electrically connected with the needle PCB (23).

4. The disposable combined electric impedance navigation probe spinal puncture needle according to claim 3, characterized in that, The buzzer (24) is a patch buzzer.

5. The disposable combined electric impedance navigation probe spinal puncture needle according to claim 1, wherein, The lower end of the navigation handle (1) is respectively provided with a buckle (15) on both sides, and the upper end of the needle handle (21) is provided with a clamping groove (25) matched with the buckle (15).

6. The disposable combination electrical impedance navigation probe-spinal access needle of claim 2, wherein, One end of the navigation handle (1) is provided with a switch button (16), and the switch button (16) is electrically connected with the calculation circuit board (12).

7. The disposable combination electrical impedance navigation probe-spinal access needle of claim 6 wherein, The switch button (16) is a silica gel button.

8. The disposable combined electric impedance navigation guided spinal access needle according to any one of claims 1-7, wherein, The puncture needle (2) comprises three layers from inside to outside, the innermost layer is a stainless steel needle (26), the middle layer is an insulating layer (27), and the outermost layer is a stainless steel layer (28), and the lower end of the stainless steel needle (26) extends out of the insulating layer (27) and the stainless steel layer (28).

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