Multi-needle passage puncture insert and set for brain stereotactic apparatus

Abstract

The utility model relates to a multi-needle-passage puncture plug-in unit and a set of a brain stereotactic apparatus, and the multi-needle-passage puncture plug-in unit comprises a cylindrical guide plug-in unit (10) and a buckle type stop plug-in unit (20). A first channel (101) is formed in the center of the cylindrical guide insert (10) in the axial direction, a second channel (201) is formed in the center of the buckle type stop insert (20) in the axial direction, and the second channel (201) and the first channel (101) are coaxially arranged in the mode that a puncture needle sequentially penetrates through the second channel (201) and the first channel (101). The cylindrical guide insert (10) further comprises a plurality of first sub-channels (102) axially arranged around the first channel (101), the buckle type stop insert (20) further comprises a plurality of second sub-channels (202) axially arranged around the second channel (201), the number of the second sub-channels (202) is the same as that of the first sub-channels (102), and the second sub-channels (202) and the first sub-channels (102) are coaxially arranged in the mode that puncture needles sequentially penetrate through the second sub-channels (202). Therefore, the multi-needle-passage synchronous puncture on the brain stereotactic instrument can be realized, so that the time of surgical operation is reduced exponentially, and the surgical risk is reduced.

Description

Technical Field

[0001] The utility model relates to the field of medical instruments, in particular to a multi-needle channel puncture plug-in unit and a kit for a brain stereotactic instrument. Background Art

[0002] At present, various treatment and diagnostic procedures for the human brain in neuroscience research and clinical practice require the use of puncture needles to inject drug substances into the patient's designated area with high precision, such as deep in the brain. Most of the brain stereotaxic instruments currently used in clinical practice adopt the principle of polar coordinate positioning (including angle, depth, and front and back position). After obtaining the corresponding X, Y, and Z three-dimensional coordinates of the surgical target through CT or MR scanning imaging, the surgical target in three-dimensional space is locked using the arc center principle of the stereotaxic arc, and surgical instruments such as puncture needles, drainage tubes, and electrodes are delivered to any intracranial area by various accessories connected to the arc. Among them, the puncture needle is fixed to the brain stereotaxic instrument through a cylindrical guide plug-in and a buckle stop plug-in.

[0003] In order to reduce the time of brain stereotactic surgery and reduce the additional risks brought by surgical anesthesia and related operations, the traditional single-needle puncture can be changed to multi-needle synchronous puncture, thereby reducing the time of drug delivery exponentially. However, the current puncture plug-in cannot meet the requirements of the above-mentioned multi-needle synchronous puncture. Utility Model Content

[0004] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is to perform multi-needle synchronous puncture on a brain stereotaxic instrument without involving structural changes of the brain stereotaxic instrument itself.

[0005] To achieve the above-mentioned object, the utility model provides a multi-needle-track puncture plug-in, which comprises a cylindrical guide plug-in (10) and a buckle-type stop plug-in (20), wherein the central portion of the cylindrical guide plug-in (10) has a first channel (101) along the axial direction, and the central portion of the buckle-type stop plug-in (20) has a second channel (201) along the axial direction, and the second channel (201) and the first channel (101) are coaxially arranged with each other in a manner that allows the puncture needles to pass through in sequence;

[0006] The cylindrical guide plug-in (10) further comprises a plurality of first sub-channels (102) arranged axially around the first channel (101), and the buckle stop plug-in (20) further comprises a plurality of second sub-channels (202) arranged axially around the second channel (201), wherein the number of the second sub-channels (202) and the first sub-channels (102) are the same and are coaxially arranged with each other in a manner allowing the puncture needle to pass through in sequence.

[0007] The utility model can realize synchronous puncture of multiple needle tracks on a brain stereotactic instrument, thereby shortening the operation time and reducing the operation risk.

[0008] Correspondingly, the utility model further provides a set, comprising a cylindrical guide plug-in (10) and a buckle-type stop plug-in (20), wherein the central portion of the cylindrical guide plug-in (10) has a first channel (101) along the axial direction, and the central portion of the buckle-type stop plug-in (20) has a second channel (201) along the axial direction, and the second channel (201) and the first channel (101) are coaxially arranged with each other in a manner that allows a puncture needle to pass through in sequence; the cylindrical guide plug-in (10) further comprises a plurality of first sub-channels (102) arranged axially around the first channel (101), and the buckle-type stop plug-in (20) further comprises a plurality of second sub-channels (202) arranged axially around the second channel (201), and the number of the second sub-channels (202) and the first sub-channel (102) are the same and are coaxially arranged with each other in a manner that allows a puncture needle to pass through in sequence;

[0009] The kit also includes a calibrator (30), the calibrator (30) having a plurality of claws (301), the number of the claws (301) being equal to the number of all channels of the cylindrical guide plug-in (10) or the buckle stop plug-in (20); the claws (301) are configured to sequentially pass through all channels of the buckle stop plug-in (20) and the cylindrical guide plug-in (10) so as to align all channels of the cylindrical guide plug-in (10) with those of the buckle stop plug-in (20) to achieve a coaxial configuration.

[0010] The outer surface of the buckle-type stop plug-in unit (20) of the kit has a scale ruler, which is convenient for adjusting the relative angle between the multi-channel puncture needle and the target point, thus facilitating surgical operation.

[0011] Finally, the utility model also provides a brain stereotactic instrument, which includes the multi-needle channel puncture plug-in as described above.

[0012] The concept, specific structure and technical effects of the present invention will be further described below in conjunction with the accompanying drawings to fully understand the purpose, characteristics and effects of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0014] Figure 1 It is a schematic diagram of the use of an embodiment of the utility model.

[0015] Figure 2 It is a three-dimensional diagram of a component of an embodiment of the utility model.

[0016] Figure 3 It is a three-dimensional diagram of another component of an embodiment of the utility model.

[0017] Figure 4 It is a three-dimensional diagram of a component of another embodiment of the utility model.

[0018] Figure 5 It is a three-dimensional diagram of another component of another embodiment of the utility model.

[0019] Figure 6 It is a three-dimensional diagram of a component of yet another embodiment of the utility model.

[0020] Figure 7 It is a three-dimensional diagram of another component of yet another embodiment of the utility model.

[0021] Figure 8 It is a three-dimensional diagram of another embodiment of the utility model.

[0022] Fig. 9 It is a combined schematic diagram of another embodiment of the utility model.

[0023] Figure markings: 10-cylindrical guide plug-in; 101-first channel; 102-first sub-channel; 20-buckle stop plug-in; 201-second channel; 202-second sub-channel; 110-first guide component; 120-second guide component; 111-first slide; 121-second slide; 210-first stop component; 220-second stop component; 211-third slide; 221-fourth slide; 30-calibrator; 301-claw; 400-brain stereotaxic instrument; 401-puncture needle; 402-first fixed shaft ring; 403-second fixed shaft ring; 50-scale ruler. DETAILED DESCRIPTION

[0024] The following describes several preferred embodiments of the present invention with reference to the drawings in the specification, so that the technical content is clearer and easier to understand. The present invention can be embodied in many different forms of embodiments, and the protection scope of the present invention is not limited to the embodiments mentioned in the text. In addition, unless otherwise specified, the features between the various embodiments can be appropriately combined with each other.

[0025] In the drawings, components with the same structure are indicated by the same numerical labels, and components with similar structures or functions are indicated by similar numerical labels. The size and thickness of each component shown in the drawings are arbitrarily shown, and the utility model does not limit the size and thickness of each component. In order to make the illustration clearer, the thickness of the components is appropriately exaggerated in some places in the drawings.

[0026] Figure 1A schematic diagram of the use of a multi-needle-channel puncture plug-in of the utility model is shown, wherein a cylindrical guide plug-in 10 is fixed on a second fixed shaft ring 403 of a brain stereotaxic instrument 400, a buckle-type stop plug-in 20 is fixed on a first fixed shaft ring 402, and a puncture needle 401 (only one is shown) passes through the buckle-type stop plug-in 20 and the cylindrical guide plug-in 10 in sequence and enters the human body.

[0027] Figure 2 The utility model shows a cylindrical guide plug-in 10 of a multi-needle channel puncture plug-in, wherein the central portion thereof has a first channel 101 along the axial direction and a plurality of first sub-channels 102 arranged along the axial direction around the first channel 101. Multiple pairs of puncture needles can arbitrarily pass through the first channel 101 or the first sub-channel 102. In the case of only one pair of puncture needles, the first channel 101 is preferably used. Depending on the number of puncture needles required, the number of first sub-channels 102 can be 1, 2, 3, 4 or more. Figure 1 In the example shown, five puncture needles can be inserted at the same time. Generally, the cylindrical guide plug-in 10 is used to guide the movement of the puncture needle and fix the needle tip to prevent it from shaking when the puncture needle moves.

[0028] Figure 3 The buckle-type stop plug-in 20 of the multi-needle-channel puncture plug-in of the present invention is shown, wherein the central portion of the buckle-type stop plug-in 20 has a second channel 201 along the axial direction and a plurality of second sub-channels 202 arranged around the second channel 201 along the axial direction.

[0029] The second channel 201 and the first channel 101 are coaxially arranged with each other in a manner that allows the puncture needle to pass through in sequence, and the number of the second subchannels 202 and the first subchannel 102 is the same, and they are also coaxially arranged with each other in a manner that allows the puncture needle to pass through in sequence. Similar to the first channel 101 and the first subchannel 102, the second channel 201 and the second subchannel 202 can also allow multiple pairs of puncture needles to pass through at will at the same time. In the case of only one pair of puncture needles, the second channel 102 is preferably used. According to the number of puncture needles required, the second subchannel 202 can be set to 1, 2, 3, 4 or more. When in use, the puncture needle passes through each channel of the buckle stop plug-in 20 and the cylindrical guide plug-in 10 in sequence. Generally, the buckle stop plug-in 20 is used to stop the puncture needle so that the puncture needle does not slip out of the channel. The tail of the puncture needle usually has a different diameter design, which has a size larger than the channel diameter of the buckle stop plug-in 20, so that the tail of the puncture needle is stuck on the channel of the buckle stop plug-in 20.

[0030] Preferably, the axes of the first channel 101 and the first subchannel 102, and the axes of the second channel 201 and the second subchannel 202 are parallel to each other. This arrangement prevents the needles of the puncture needles from colliding when the puncture needles are long and the drug delivery position is deep.

[0031] Preferably, the vertical distance between the axis of each first subchannel 102 and the axis of the first channel 101 is 4-8 mm. By adjusting the vertical distance between the axis of the first subchannel 102 and the axis of the first channel 101, the distance between the needle tips of each puncture needle can be adjusted accordingly to obtain the optimal drug delivery effect.

[0032] Preferably, the cylindrical guide plug-in 10 is composed of a first guide sub-component 110 and a second guide sub-component 120, the inner surface of the first guide sub-component 110 has a first slide groove 111 arranged along the axial direction, and the inner surface of the second guide sub-component 120 has a second slide groove 121 arranged along the axial direction, and the first slide groove 111 and the second slide groove 121 are arranged to form a first channel 101 when the first guide sub-component 110 and the second guide sub-component 120 are combined.

[0033] like Figure 4 As shown, there are shown a first guide sub-component 110, a second guide sub-component 120, a first slide 111 and a second slide 121. By splitting the cylindrical guide plug-in 10 into two groups of components, the size of the first channel 101 can be fine-tuned on the fixed shaft ring of the brain stereotaxic instrument during use, which is convenient for the assembly of the puncture needle.

[0034] Preferably, the buckle-type stop plug-in 20 is composed of a first stop component 210 and a second stop component 220, the inner surface of the first stop component 210 has a third slide groove 211 arranged along the axial direction, and the inner surface of the second stop component 220 has a fourth slide groove 221 arranged along the axial direction, and the third slide groove 211 and the fourth slide groove 221 are arranged to form a second channel 201 when the first stop component 210 and the second stop component 220 are combined.

[0035] like Figure 5 As shown, there are shown a first stop sub-component 210, a second stop sub-component 220, a third slide groove 211 and a fourth slide groove 221. By splitting the buckle stop plug-in 20 into two groups of components, the size of the second channel 201 can be fine-tuned on the fixed shaft ring of the brain stereotaxic instrument during use, which is convenient for the assembly of the puncture needle.

[0036] Preferably, see Figure 6 and Figure 7The outer surfaces of the cylindrical guide plug-in 10 and / or the buckle stop plug-in 20, i.e., the corresponding first guide sub-component 110 and second guide sub-component 120 and / or first stop sub-component 210 and second stop sub-component 220, have a scale ruler 50. In the case of synchronous puncture of multiple needle channels, it is sometimes necessary to adjust the position of the puncture needle by rotation, and the scale ruler 50 can facilitate the user to adjust the relative angle between the multiple needle channel puncture needle and the target. Preferably, the outer surface edge of the cylindrical guide plug-in 10 and / or the buckle stop plug-in 20 has four scale rulers 50 distributed in a cross shape, and the graduation value is preferably ±2 degrees.

[0037] Another embodiment of the utility model provides a kit, which, in addition to the cylindrical guide plug-in 10 and the buckle stop plug-in 20 as described above, also includes a calibrator 30, the calibrator 30 has a plurality of claws 301, the number of the claws 301 is equal to the number of all channels of the cylindrical guide plug-in 10 or the buckle stop plug-in 20, the claws 301 are configured to pass through all channels of the buckle stop plug-in 20 and the cylindrical guide plug-in 10 in sequence, so that all channels of the cylindrical guide plug-in 10 are aligned with those of the buckle stop plug-in 20 to achieve a coaxial configuration.

[0038] like Figure 8 As shown, the calibrator 30 and the claw 301 are shown. Since the cylindrical guide plug-in 10 and the buckle stop plug-in 20 have multiple sub-channels, when in use, there may be a problem that the sub-channels of the cylindrical guide plug-in 10 and the buckle stop plug-in 20 cannot be aligned with each other, resulting in a problem of blocking the puncture needle. Fig. 9 As shown, the use of the calibrator 30 can align the sub-channels of the cylindrical guide plug-in 10 and the button-type stop plug-in 20 when they are installed on the fixed shaft ring of the brain stereotactic instrument. Thereafter, the calibrator 30 can be removed to facilitate the puncture needle to pass through the various sub-channels of the button-type stop plug-in 20 and the cylindrical guide plug-in 10 in turn.

[0039] Accordingly, another embodiment of the present invention provides a brain stereotaxic instrument including the improved cylindrical guide plug-in 10 and the buckle-type stop plug-in 20 as described above. The cylindrical guide plug-in 10 and the buckle-type stop plug-in 20 of the present invention have a simple structure and can be directly adapted to the fixed shaft ring of a conventional brain stereotaxic instrument, making it possible to perform synchronous puncture of multiple needle channels, thereby reducing the time of surgical operation by several times and reducing surgical risks.

[0040] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technology in the field can make many modifications and changes according to the concept of the utility model without creative work. Therefore, any technical solution that can be obtained by a technician in the technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the scope of protection determined by the claims.

Claims

1. A multi-needle puncture plug-in unit for a brain stereotaxic instrument, characterized in that: The multi-needle-track puncture plug-in comprises a cylindrical guide plug-in (10) and a buckle-type stop plug-in (20), wherein the central portion of the cylindrical guide plug-in (10) has a first channel (101) along the axial direction, and the central portion of the buckle-type stop plug-in (20) has a second channel (201) along the axial direction, and the second channel (201) and the first channel (101) are coaxially arranged with each other in a manner that allows the puncture needles to pass through in sequence; The cylindrical guide plug-in (10) further comprises a plurality of first sub-channels (102) arranged axially around the first channel (101), and the buckle stop plug-in (20) further comprises a plurality of second sub-channels (202) arranged axially around the second channel (201), wherein the number of the second sub-channels (202) and the first sub-channels (102) are the same and are coaxially arranged with each other in a manner allowing the puncture needle to pass through in sequence.

2. The multi-needle puncture insert according to claim 1, characterized in that: The axes of the first channel (101) and the first sub-channel (102), and the axes of the second channel (201) and the second sub-channel (202) are parallel to each other.

3. The multi-needle-track puncture inserter according to claim 1, characterized in that: The vertical distance between the axis of each of the first sub-channels (102) and the axis of the first channel (101) is 4-8 mm.

4. The multi-needle-track puncture inserter according to claim 1, characterized in that: The cylindrical guide plug-in (10) is composed of a first guide sub-component (110) and a second guide sub-component (120); the inner surface of the first guide sub-component (110) has a first slide groove (111) arranged along the axial direction; the inner surface of the second guide sub-component (120) has a second slide groove (121) arranged along the axial direction; the first slide groove (111) and the second slide groove (121) are arranged to form the first channel (101) when the first guide sub-component (110) and the second guide sub-component (120) are combined.

5. The multi-needle-track puncture inserter according to claim 1, characterized in that: The buckle-type stop plug-in (20) is composed of a first stop component (210) and a second stop component (220); the inner surface of the first stop component (210) has a third slide groove (211) arranged along the axial direction; the inner surface of the second stop component (220) has a fourth slide groove (221) arranged along the axial direction; the third slide groove (211) and the fourth slide groove (221) are arranged to form the second channel (201) when the first stop component (210) and the second stop component (220) are combined.

6. The multi-needle-track puncture inserter according to claim 1, characterized in that: The outer surface edge of the buckle-type stop plug-in (20) and / or the cylindrical guide plug-in (10) has a scale scale.

7. A set, characterized in that: The invention comprises a cylindrical guide plug-in (10) and a buckle-type stop plug-in (20), wherein the central portion of the cylindrical guide plug-in (10) has a first channel (101) along the axial direction, and the central portion of the buckle-type stop plug-in (20) has a second channel (201) along the axial direction, and the second channel (201) and the first channel (101) are coaxially arranged with each other in a manner that allows a puncture needle to pass through in sequence; the cylindrical guide plug-in (10) further comprises a plurality of first sub-channels (102) arranged axially around the first channel (101), and the buckle-type stop plug-in (20) further comprises a plurality of second sub-channels (202) arranged axially around the second channel (201), and the number of the second sub-channels (202) and the first sub-channel (102) are the same and are coaxially arranged with each other in a manner that allows a puncture needle to pass through in sequence; The kit also includes a calibrator (30), the calibrator (30) having a plurality of claws (301), the number of the claws (301) being equal to the number of all channels of the cylindrical guide plug-in (10) or the buckle stop plug-in (20), the claws (301) being configured to sequentially pass through all channels of the buckle stop plug-in (20) and the cylindrical guide plug-in (10) so as to align all channels of the cylindrical guide plug-in (10) with those of the buckle stop plug-in (20) to achieve a coaxial configuration.

8. The set according to claim 7, characterized in that: The cylindrical guide plug-in (10) is composed of a first guide sub-component (110) and a second guide sub-component (120), wherein the inner surface of the first guide sub-component (110) has a first slide groove (111), and the inner surface of the second guide sub-component (120) has a second slide groove (121), and the first slide groove (111) and the second slide groove (121) are arranged to form the first channel (101) when the first guide sub-component (110) and the second guide sub-component (120) are combined.

9. The set according to claim 7, characterized in that: The buckle-type stop plug-in (20) is composed of a first stop component (210) and a second stop component (220); the inner surface of the first stop component (210) has a third slide groove (211); the inner surface of the second stop component (220) has a fourth slide groove (221); the third slide groove (211) and the fourth slide groove (221) are arranged to form the second channel (201) when the first stop component (210) and the second stop component (220) are combined.

10. The set according to claim 7, characterized in that: The outer surface of the buckle-type stop plug-in unit (20) has a scale.

11. A brain stereotaxic instrument, characterized in that: The brain stereotactic instrument comprises the multi-needle-channel puncture plug-in as described in any one of claims 1 to 6.

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