阅读说明：本技术 快速释放型穿刺针的导向装置和穿刺总成 (Guide device and puncture assembly of quick release type puncture needle ) 是由 段星光 何睿 李长胜 温浩 于佳正 陈安之 孟繁盛 陈向前 于 2021-08-18 设计创作，主要内容包括：本发明涉及医疗器械技术领域,提供一种快速释放型穿刺针的导向装置和穿刺总成,该导向装置包括：导向装置外壳,其内部设有水平滑动槽和贯通水平滑动槽的第一限位孔；按钮滑块,可往复滑动地安装于水平滑动槽内,其内部成型有与第一限位孔对应的第二限位孔；穿刺针导向块,成型有用于安装穿刺针的导向孔；第一弹性偏压件,连接于按钮滑块和导向装置外壳之间,向其施加弹性偏压力通过第二限位孔的孔壁将穿刺针导向块锁紧在第二限位孔中；按钮滑块朝向克服弹性偏压力方向移动时,穿刺针导向块在其自重作用下从第一限位孔中脱落。本发明解决了相关技术中不能通过简便操作快速释放穿刺针的技术问题。(The invention relates to the technical field of medical instruments, and provides a guide device and a puncture assembly of a quick-release puncture needle, wherein the guide device comprises: the guide device comprises a guide device shell, a guide device and a guide device, wherein a horizontal sliding groove and a first limiting hole penetrating through the horizontal sliding groove are formed in the guide device shell; the button sliding block is arranged in the horizontal sliding groove in a reciprocating sliding manner, and a second limiting hole corresponding to the first limiting hole is formed in the button sliding block; the puncture needle guide block is formed with a guide hole for installing a puncture needle; the first elastic biasing part is connected between the button sliding block and the guiding device shell, and applies elastic biasing force to the first elastic biasing part to lock the puncture needle guiding block in the second limiting hole through the hole wall of the second limiting hole; when the button sliding block moves towards the direction of overcoming the elastic biasing force, the puncture needle guide block falls off from the first limiting hole under the action of the dead weight of the puncture needle guide block. The invention solves the technical problem that the puncture needle cannot be quickly released through simple operation in the related technology.)

1. A guide for a quick release needle, said guide comprising:

the guide device comprises a guide device shell (2) and a first limiting hole, wherein the guide device shell (2) is arranged on a connecting rod (1) at the tail end of a mechanical arm, a horizontal sliding groove (201) is formed in the guide device shell (2), and the first limiting hole is at least formed in the bottom surface of the guide device shell (2) and penetrates through the horizontal sliding groove (201) upwards;

the button sliding block (3) is arranged in the horizontal sliding groove (201) in a reciprocating sliding mode, and a second limiting hole corresponding to the first limiting hole is formed in the button sliding block (3) in a forming mode;

the puncture needle guide block (7) is provided with a guide hole (701) for installing the puncture needle, and the puncture needle guide block (7) is suitable for being inserted into the first limiting hole and the second limiting hole from an opening on the bottom surface of the guide device shell (2);

the first elastic biasing part (5) is connected between the button slide block (3) and the guide device shell (2), and applies elastic biasing force to the button slide block (3) to lock the puncture needle guide block (7) in the second limiting hole through the hole wall of the second limiting hole; when the button sliding block (3) moves towards the direction overcoming the elastic biasing force until the puncture needle guide block (7) is separated from the hole wall of the second limiting hole, the puncture needle guide block (7) falls off from the first limiting hole under the action of the dead weight of the puncture needle guide block.

2. The needle guide of a quick release lancet of claim 1, further comprising

A second elastic biasing member (6) having one end provided on the guide housing (2) and the other end applying an elastic biasing force to the puncture needle guide block (7) to pop out from the first and second stopper holes;

the puncture needle guide block (7) is inserted into the first limit hole and the second limit hole from the bottom opening of the guide device housing (2) against the elastic biasing force of the second elastic biasing member (6);

when the puncture needle guide block (7) is separated from the hole wall of the second limiting hole, the elastic biasing force of the second elastic biasing piece is combined with the self weight of the puncture needle guide block (7) to rapidly eject and fall the puncture needle guide block (7) from the first limiting hole.

3. A guide for a quick release lancet according to claim 2, wherein the second resilient biasing member (6) is a pogo pin having one end fixedly attached to the top surface of the guide housing (2) and the other end extending downwardly beyond the bottom surface of the guide housing (2);

the bottom of the puncture needle guide block (7) is provided with a circular surface which is propped against the other end of the spring thimble and overcomes the elastic biasing force to be inserted into the first limiting hole and the second limiting hole.

4. A rapid-release puncture needle guide device according to claim 3, wherein the pogo pins are arranged in pairs, symmetrically on both sides of the insertion position of the puncture needle guide block (7).

5. A guide for a quick release puncture needle according to claim 3, wherein the guide housing (2) is formed with a spring thimble guide hole which penetrates the bottom surface of the guide housing (2) downward from the horizontal sliding groove (201), and the other end of the spring thimble protrudes from the spring thimble guide hole out of the bottom surface of the guide housing (2).

6. A guide for a quick-release puncture needle according to any one of claims 1 to 5, wherein a first end of the button slider (3) is disposed inside the horizontal sliding groove (201) of the guide housing (2), and a second end of the button slider (3) is disposed outside the horizontal sliding groove (201); the first elastic biasing member (5) is a spring, one end of the first elastic biasing member is welded in a spring mounting groove at the first end of the button sliding block (3), and the other end of the first elastic biasing member abuts against a groove wall of the horizontal sliding groove (201) of the guiding device shell (2).

7. The needle guide of a quick release puncture needle according to any one of claims 1 to 5, wherein the guide further comprises

The limiting device comprises a limiting groove formed in the button sliding block (3) and a limiting part fixedly arranged on the guide device shell (2), and the limiting part extends into the limiting groove to limit the button sliding block (3).

8. A guide for a quick-release puncture needle according to any one of claims 1 to 5, wherein a notch is provided in a side portion of the guide housing (2), and a portion of the second stopper hole corresponding to the notch is provided with a notch which communicates with the notch to form an evacuation passage for withdrawing the puncture needle from the guide housing (2).

9. The guide of a quick-release puncture needle according to claim 6, wherein the guide housing (2) is provided at a side portion thereof with a button block mounting port which is communicated with the horizontal sliding groove (201), and the second end of the button block (3) is located outside the button block mounting port.

10. A puncture assembly comprising a puncture needle and a guide device for a quick-release puncture needle according to any one of claims 1 to 9, the puncture needle being inserted into the guide hole (701) of the puncture needle guide block (7).

Technical Field

The invention relates to the technical field of medical instruments, in particular to a guide device and a puncture assembly of a quick-release type puncture needle.

Background

In the traditional puncture operation, a doctor needs to plan a puncture path on a CT image of a patient, and estimates a corresponding puncture position and angle on the patient body by depending on experience, the puncture needle is held by hand to puncture, and the position and angle of the puncture needle are not easy to control in the puncture process.

The auxiliary puncture robot places the puncture needle guide device on the patient body at the puncture position and angle corresponding to the planned path, and the doctor punctures under the restraint of the position and angle of the guide device, so that the position and angle of the puncture needle in the puncture process are more accurate and stable.

The needle guide is to be able to quickly release the needle even if the needle is quickly disengaged from the guide. In the process of puncture, if the patient moves, the puncture needle needs to be released quickly, the puncture needle moves freely along with the patient, and the patient is prevented from being scratched and punctured by mistake. After the puncture is finished, the puncture needle needs to be released, the puncture needle is left on the patient body, and the CT scanning is carried out together with the patient to judge whether the puncture is in place. The guide device is not required to touch the puncture needle when being separated, so that the needle inserting depth and angle of the puncture needle are prevented from being changed.

In the conventional puncture needle guide device, such as chinese patent document CN208989132U, a guide block of the puncture needle is fastened by using a bolt, and the bolt needs to be detached when the puncture needle is released, so that the puncture needle cannot be separated from the guide device quickly. Further, as in chinese patent documents CN209236317U and CN211131317U, since a needle holding mechanism of a guide surrounding type and a frictional force between the needle holding mechanism and the puncture needle are present, the puncture needle is easily touched by mistake during the operation of removing the guide, and the puncture accuracy is affected.

Disclosure of Invention

The invention mainly aims to provide a guide device of a quick-release puncture needle, which solves the technical problem that the puncture needle cannot be quickly released through simple operation in the related art.

Another main object of the present invention is to provide a quick-release type puncture needle guide device, so as to solve the technical problem in the related art that the puncture needle is easily touched by mistake when the guide device is separated due to the friction force between the guide device and the puncture needle, which affects the puncture precision.

In order to achieve the above objects, in one aspect of the present invention, there is provided a guide for a quick-release type puncture needle.

The guide device includes:

the guide device comprises a guide device shell, a first limiting hole and a second limiting hole, wherein the guide device shell is arranged on a connecting rod at the tail end of a mechanical arm, a horizontal sliding groove is arranged in the guide device shell, and the first limiting hole at least penetrates through the horizontal sliding groove upwards from an opening in the bottom surface of the guide device shell;

the button sliding block is arranged in the horizontal sliding groove in a reciprocating sliding mode, and a second limiting hole corresponding to the first limiting hole is formed in the button sliding block;

the puncture needle guide block is provided with a guide hole for installing the puncture needle, and the puncture needle guide block is suitable for being inserted into the first limiting hole and the second limiting hole from an opening on the bottom surface of the guide device shell;

the first elastic biasing part is connected between the button sliding block and the guiding device shell, and applies elastic biasing force to the button sliding block to lock the puncture needle guiding block in the second limiting hole through the hole wall of the second limiting hole; when the button sliding block moves towards the direction overcoming the elastic biasing force until the puncture needle guide block is separated from the hole wall of the second limiting hole, the puncture needle guide block falls off from the first limiting hole under the action of the dead weight of the puncture needle guide block.

The invention provides a guide device of a quick release type puncture needle, which is characterized in that a first limit hole is arranged in a horizontal sliding groove in a guide device shell, a second limit hole corresponding to the first limit hole is arranged in a button slide block which is arranged in the horizontal sliding groove in a reciprocating sliding manner, a puncture needle guide block is arranged between the first limit hole and the second limit hole, and the button slide block applies elastic biasing force to lock the puncture needle guide block in the second limit hole through the hole wall of the second limit hole by utilizing a first elastic biasing member connected between the button slide block and the guide device shell; by simply and conveniently operating the button sliding block, when the puncture needle guide block moves towards the direction overcoming the elastic biasing force to be separated from the hole wall of the second limit hole, the puncture needle guide block falls off from the first limit hole under the action of the dead weight of the puncture needle guide block, so that the rapid switching between the position connection state and the position separation state between the puncture needle guide block and the guide device shell is realized, and the technical problem that the puncture needle cannot be rapidly released through simple and convenient operation in the related technology is solved.

Preferably, the guide device further comprises

A second elastic biasing member having one end provided on the guide housing and the other end applying an elastic biasing force to the puncture needle guide block to pop out from the first stopper hole and the second stopper hole;

the puncture needle guide block is inserted into the first stopper hole and the second stopper hole from the opening of the bottom surface of the guide housing against the elastic biasing force of the second elastic biasing member;

when the puncture needle guide block is separated from the hole wall of the second limiting hole, the elastic biasing force of the second elastic biasing piece is combined with the self weight of the puncture needle guide block to quickly eject and fall the puncture needle guide block from the first limiting hole.

Considering that a certain friction force exists between the side surface of the second limit hole of the button sliding block and the side surface of the puncture needle guide block, and the puncture needle guide block cannot fall off quickly only by means of the gravity of the puncture needle guide block, the invention provides the guide device of the quick-release puncture needle. And then solved among the relevant art because of there is frictional force between guider and pjncture needle and lead to easy mistake touch pjncture needle when breaking away from and influence the technical problem of puncture precision.

Preferably, said second resilient biasing member is a pogo pin having one end fixedly attached to the top surface of said guide housing and the other end downwardly extending from the bottom surface of said guide housing;

the bottom of the puncture needle guide block is provided with a round surface which is propped against the other end of the spring thimble and is inserted into the first limiting hole and the second limiting hole by overcoming the elastic biasing force.

Preferably, the spring thimbles are arranged in pairs and are uniformly distributed on two symmetrical sides of the insertion position of the puncture needle guide block.

Preferably, the guide device housing is formed with a spring thimble guide hole which penetrates downward from the horizontal sliding groove through a bottom surface of the guide device housing, and the other end of the spring thimble protrudes from the spring thimble guide hole out of the bottom surface of the guide device housing.

Preferably, a first end of the button slider is disposed inside the horizontal sliding groove of the guide housing, and a second end of the button slider is disposed outside the horizontal sliding groove; the first elastic biasing member is a spring, one end of which is welded in a spring mounting groove of the first end of the button slider and the other end of which abuts against a groove wall of the horizontal sliding groove of the guide device housing.

Preferably, the guide device further comprises

The limiting device comprises a limiting groove formed in the button sliding block and a limiting part fixedly arranged on the guide device shell, and the limiting part extends into the limiting groove and limits the button sliding block.

Preferably, a slot is formed in the side portion of the guide device shell, a notch is formed in the position, corresponding to the slot, of the second limiting hole, and the notch is communicated with the slot to form an evacuation channel for withdrawing the puncture needle from the guide device shell.

Preferably, a button slider mounting opening is formed in a side portion of the guide device housing, the button slider mounting opening is communicated with the horizontal sliding groove, and the second end of the button slider is located outside the button slider mounting opening.

In a second aspect, the present invention also provides a lancing assembly;

the puncture assembly comprises a puncture needle and any one of the guide devices of the quick-release puncture needle, wherein the puncture needle is arranged in the guide hole of the puncture needle guide block in a penetrating manner.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention and to enable other features, objects and advantages of the invention to be more fully apparent. The drawings and their description illustrate the invention by way of example and are not intended to limit the invention. In the drawings:

fig. 1 is a schematic view of a quick release needle guide according to an embodiment of the present invention;

FIG. 2 is a schematic view of the internal structure of FIG. 1;

fig. 3 is a schematic diagram of the structure of fig. 1 in practical application.

Reference numerals

1. A mechanical arm tail end connecting rod; 2. a guide housing; 201. a horizontal sliding groove; 3. a button slider; 4. a limit screw; 5. a first resilient biasing member; 6. a second resilient biasing member; 7. a puncture needle guide block; 701. a guide hole; 8. body surface.

Detailed Description

In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged under appropriate circumstances in order to facilitate the description of the embodiments of the invention herein. The terms "upper", "lower", "bottom", "inner", "outer", "center", "radial", and the like indicate an orientation or positional relationship based on that shown in the drawings. These terms are used primarily to better describe the invention and its embodiments and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the present invention can be understood by those skilled in the art as appropriate.

In addition, the term "plurality" shall mean two as well as more than two.

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

As shown in fig. 1 to 3, the present invention provides a guide device of a quick release type puncture needle, which comprises a guide device housing 2, a button slider 3, a puncture needle guide block 7 and a first elastic biasing member 5, wherein the guide device housing 2 is used for being arranged on a mechanical arm end connecting rod 1, a horizontal sliding groove 201 is arranged inside the guide device housing 2, and a first limiting hole which is at least opened on the bottom surface of the guide device housing 2 and upwards penetrates through the horizontal sliding groove 201; the button sliding block can be arranged in the horizontal sliding groove 201 in a reciprocating mode, and a second limiting hole corresponding to the first limiting hole is formed in the button sliding block 3; a guide hole 701 for installing a puncture needle is formed in the puncture needle guide block 7, and the puncture needle guide block 7 is suitable for being inserted into the first limiting hole and the second limiting hole through the opening in the bottom surface of the guide device shell 2; the first elastic biasing member 5 is connected between the button slider 3 and the guide device shell 2, elastic biasing force is applied to the button slider 3, the puncture needle guide block 7 is locked in the second limit hole through the hole wall of the second limit hole, the button slider 3 moves towards the direction overcoming the elastic biasing force until the puncture needle guide block 7 is separated from the hole wall of the second limit hole, and the puncture needle guide block 7 falls off from the first limit hole under the action of the gravity of the puncture needle guide block.

The invention provides a guide device of a quick release type puncture needle, which is characterized in that a first limit hole is arranged in a horizontal sliding groove in a guide device shell, a second limit hole corresponding to the first limit hole is arranged in a button slide block which is arranged in the horizontal sliding groove in a reciprocating sliding manner, a puncture needle guide block is arranged between the first limit hole and the second limit hole, and the button slide block applies elastic biasing force to lock the puncture needle guide block in the second limit hole through the hole wall of the second limit hole by utilizing a first elastic biasing member connected between the button slide block and the guide device shell; when an operator (doctor) can press the button sliding block to move towards the direction overcoming the elastic biasing force until the puncture needle guide block is separated from the hole wall of the second limit hole, the puncture needle guide block falls off from the first limit hole under the action of the dead weight of the puncture needle guide block, so that the rapid switching between the position connection state and the position separation state between the puncture needle guide block 7 and the guide device shell 2 is realized, and the technical problem that the puncture needle cannot be rapidly released through simple operation in the related technology is solved.

Considering that a certain friction force exists between the side surface of the second limit hole of the button slider and the side surface of the puncture needle guide block, and the puncture needle guide block is at risk of not falling rapidly only by the self gravity, in an alternative embodiment of the invention, the guide device further comprises a second elastic biasing member 6, one end of the second elastic biasing member 6 is arranged on the guide device shell 2, and the other end of the second elastic biasing member applies elastic biasing force which is popped out from the first limit hole and the second limit hole to the puncture needle guide block 7; the puncture needle guide block 7 is inserted into the first limit hole and the second limit hole from the opening of the bottom surface of the guide housing 2 against the elastic biasing force of the second elastic biasing member 6; when the puncture needle guide block 7 is separated from the hole wall of the second limiting hole, the elastic biasing force of the second elastic biasing part is combined with the self weight of the puncture needle guide block 7 to rapidly eject the puncture needle guide block 7 from the first limiting hole to fall off. Therefore, even if a certain friction force exists between the side surface of the second limit hole of the button sliding block and the side surface of the puncture needle guide block, the elastic biasing force exerted by the second elastic biasing part is combined with the self-gravity of the puncture needle guide block to ensure that the puncture needle guide block can be quickly popped out and separated from the first limit hole and the second limit hole when being released, and the technical problem that the puncture precision is influenced because the guide device is easily touched by mistake when the guide device is withdrawn due to the friction force existing between the guide device and the puncture needle in the related technology is solved.

In an alternative embodiment of the invention, the second resilient biasing member 6 is a pogo pin having one end fixedly attached to the top surface of the guide housing 2 and the other end extending downwardly from the bottom surface of the guide housing 2; the bottom of the puncture needle guide block 7 is provided with a circular surface which is propped against the other end of the spring thimble and is inserted into the first limit hole and the second limit hole by overcoming the elastic biasing force. In a further alternative embodiment of the present invention, the spring thimbles are arranged in pairs and uniformly distributed on two symmetrical sides of the insertion position of the puncture needle guide block 7, and the spring thimbles are arranged in pairs and uniformly distributed on two symmetrical sides of the insertion position of the puncture needle guide block 7, so that the force application of the second elastic biasing member to the whole structure of the puncture needle guide block 7 is more uniform, and the phenomenon that the puncture needle guide block 7 deviates from the original direction due to uneven force application when the puncture needle guide block 7 is ejected is avoided, so that the puncture angle and/or puncture position of the puncture needle arranged on the puncture needle guide block 7 are changed, and the puncture effect is affected.

In an alternative embodiment of the invention, the guide housing 2 is formed with a spring thimble guide hole extending downwardly through the bottom surface of the guide housing 2 from the horizontal slide groove 201, and the other end of the second resilient biasing member 6 extends from the spring thimble guide hole towards the bottom surface of the guide housing 2. The spring thimble guide hole is arranged to effectively protect the spring thimble and guide the movement direction of the spring thimble, so that the rebound of the spring thimble deviates from the preset direction in the use process is avoided.

In an alternative embodiment of the present invention, a first end of the button slider 3 is disposed inside the horizontal sliding groove 201 of the guide housing 2, a second end of the button slider 3 is disposed outside the horizontal sliding groove 201, and the first elastic biasing member 5 is a spring having one end welded in a spring installation groove of the first end of the button slider 3 and the other end abutting against a groove wall of the horizontal sliding groove 201 of the guide housing 2. The first elastic biasing member 5 is simple and convenient to install in a spring arrangement structure, and the spring moves along the stress direction under the condition that the groove body is fixed, so that the fault condition caused by rebounding and clamping the shell can be effectively avoided.

In an alternative embodiment of the present invention, in order to improve the structural integrity of the guiding device and reduce the structural volume of the guiding device, preferably, the pogo pin 6 is penetratingly disposed in the horizontal sliding groove 201, and the button slider 3 is provided with a structural groove corresponding to the pogo pin 6, the structural groove is disposed, so that while the partial structure of the pogo pin is structurally integrated with the horizontal sliding groove 201 of the guiding device housing 2 and the button slider 3, the influence of the pogo pin 6 structure on the movement of the button slider 3 in the horizontal sliding groove 201 can be effectively avoided, thereby improving the structural integrity of the guiding device and reducing the overall volume while not affecting the function limitation.

In an alternative embodiment of the present invention, the guiding device further includes a limiting device, the limiting device includes a limiting groove disposed on the button sliding block 3 and a limiting member fixedly disposed on the guiding device housing 2, the limiting member extends into the limiting groove to limit the button sliding block 3, so as to prevent the button sliding block 3 from separating from the horizontal sliding groove 201 during the use process.

In an alternative embodiment of the present invention, the limiting member is a protrusion disposed in the horizontal sliding groove 201, and the protrusion may be disposed in the moving track of the button sliding block 3, or disposed at the edge of the horizontal sliding groove 201, so as to prevent the button sliding block 3 from being separated from the guiding device housing 2 due to the spring action in the practical process by blocking the structure of the button sliding block 3. In another alternative embodiment of the present invention, the limiting member is a limiting screw 4, the limiting screw 4 is disposed in the horizontal sliding groove 201 of the base, and in this case, a limiting groove is disposed on the button sliding block 3 and matched with the limiting screw 4, and the limiting groove can move relative to the limiting screw 4 while the button sliding block 3 moves relative to the horizontal sliding groove 201. The limiting groove is further preferably an elongated limiting groove arranged along the moving direction of the button slider 3, and the length of the elongated limiting groove is further preferably not less than the maximum sliding distance between the button slider 3 and the horizontal sliding groove 201.

After the puncture needle is released after the puncture is finished, the puncture needle can be left on the patient body and is scanned together with the patient to judge whether the puncture needle is in place or not, the guide device needs to be removed from the puncture needle before scanning, and the puncture needle does not need to be touched when the puncture needle is removed. In an alternative embodiment of the invention, therefore, an evacuation channel is provided for the evacuation of the puncture needle from the guide housing 2, in particular: the lateral part of the guiding device shell 2 is provided with a slot, the second limiting hole is provided with a notch based on the corresponding position of the slot, the notch and the slot are communicated to form an evacuation channel for withdrawing the puncture needle from the guiding device shell 2, the evacuation channel is arranged at the side edge of the guiding device shell 2, the puncture needle is convenient to take out, and the situation that the puncture angle and/or the position of the puncture needle are influenced due to mistaken touch caused by blocked sight when the puncture needle is taken out due to the fact that the puncture needle is in a sleeved relation with the puncture needle is avoided. And is convenient for scanning the puncture position of the patient after the puncture is finished.

In order to improve the convenience of pressing the button slider 3 in the using process and facilitate the holding of the guiding device and the triggering of the button slider 3, in an alternative embodiment of the invention, a button slider mounting opening is formed in the side portion of the guiding device housing 2, the button slider mounting opening is communicated with the horizontal sliding groove 201, and the second end of the button slider 3 is located outside the button slider mounting opening. The implementation of this structure can conveniently install button slide 3 simultaneously, and the guider of being convenient for carries out overall structure's dismouting to the replacement of convenient maintenance and spare part.

The guide device of the quick release type puncture needle comprises the following specific operation steps:

the button slider 3 is pressed down to insert the puncture needle guide block 7 from the limit hole in the center of the guide housing 2.

The side of the needle guide 7 will abut against the end of the second resilient biasing member 6 extending out of the guide housing 2 and continue to be inserted into the needle guide 7 until the needle guide 7 abuts against the guide housing 2.

The button sliding block 3 is loosened, the puncture needle guide block 7 is extruded in the limiting hole of the guide device shell 2 under the action of the spring 5, and the elasticity of the spring thimble is insufficient to eject the puncture needle guide block 7 from the round hole.

The puncture needle penetrates along the hole in the center of the puncture needle guide block 7, penetrates into the body surface 8, and continues to puncture until the puncture depth is enough.

The button slide block 3 is pressed, and under the action of the elastic force of the spring thimble, the puncture needle guide block 7 is ejected from the limiting hole of the guide device shell 2 (the limiting hole is preferably a round hole at the center of the guide device) and falls on the body surface 8 of the patient.

And withdrawing the mechanical arm tail end connecting rod 1 and the guide device shell 2 of the mechanical arm, and moving the puncture needle out of the groove in the front part of the guide device shell 2.

The button slide block 3 of the guide device of the quick-release type puncture needle is matched with the spring thimble, the puncture needle guide block 7 can be released by one key, the puncture needle is quickly separated from the guide device, and the operation is simple and quick. Wherein, there is certain frictional force in the round hole (spacing hole) side at guider shell 2 center and the side of pjncture needle guide block 7, and pjncture needle guide block 7 only relies on its self gravity can't drop.

When the guiding device is withdrawn, the puncture needle is moved out from the notch in the front part of the guiding device shell 2, the guiding device cannot touch the puncture needle by mistake, and the puncture precision cannot be influenced.

The guide is located at the needle shaft (rather than at the needle shaft) at the point of constraint on the position and angle of the needle, and thus is suitable for different types of needles such as biopsy needles, ablation needles, etc. (different shapes of needle shafts of different types of needles).

The invention provides a puncture assembly;

the puncture assembly comprises a puncture needle and a guide device of the quick release type puncture needle, wherein the puncture needle is arranged in a guide hole 701 of a puncture needle guide block 7 in a penetrating way.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.