CN217447961U - Puncture instrument auxiliary assembly - Google Patents

Abstract

The embodiment of the specification discloses a puncture instrument auxiliary assembly, including: the sleeve comprises a first block body and a second block body, and the first block body and the second block body are oppositely arranged to form a first cavity; the sleeve is provided with a first clamping and positioning structure; the guide part comprises a first guide block and a second guide block, and the first guide block and the second guide block are oppositely arranged to form a second cavity; the guide portion includes a second clamp locating feature.

Description

Puncture instrument auxiliary assembly

Technical Field

The specification relates to the technical field of puncture, in particular to a puncture instrument auxiliary assembly.

Background

In the interventional operation, if an operator directly controls the puncture instrument with a hand to puncture, the puncture instrument is inserted into a human body, the operator needs to perform the puncture operation on a puncture site, and therefore an imaging device with certain radiation cannot be arranged on the puncture site to perform real-time imaging on a puncture position and a focus position, so that the image assistance cannot be obtained in real time in the puncture process, the process of confirming whether the puncture is in place or not through means such as CT imaging after the puncture is repeatedly performed, and the precision and the smoothness of the puncture are both limited. In order to improve the precision and the safety of puncture in interventional operations, an operator can be replaced by the puncture device to puncture in a puncture site, so that an imaging device can be arranged in the puncture site to acquire image assistance in real time.

Therefore, it is desirable to provide a corresponding auxiliary assembly of a puncturing device for fixing different puncturing devices to a puncturing apparatus, which may be used in an interventional operation, and guiding the puncturing device and positioning the puncturing device, thereby ensuring the accuracy and safety of puncturing by the puncturing apparatus.

SUMMERY OF THE UTILITY MODEL

The present description implements a puncture instrument assist assembly that includes: the sleeve comprises a first block body and a second block body, and the first block body and the second block body are oppositely arranged to form a first cavity; the sleeve is provided with a first clamping and positioning structure; the guide part comprises a first guide block and a second guide block, and the first guide block and the second guide block are oppositely arranged to form a second cavity; the guide portion includes a second clamp locating feature.

In some embodiments, a cross-section of the first cavity along a direction perpendicular to the axis includes at least a non-circular cross-section.

In some embodiments, the first cavity comprises a first sub-cavity, a second sub-cavity and a third sub-cavity arranged in sequence along the axis direction, wherein the inner diameter of the second sub-cavity is larger than the inner diameters of the first sub-cavity and the third sub-cavity.

In some embodiments, the first block comprises a first pin hole, and the second block comprises a first bayonet, wherein the first bayonet can be inserted into the first pin hole to form a fit.

In some embodiments, the first clamping and positioning structure is a positioning groove formed in the outer wall of the sleeve.

In some embodiments, the detent is an annular groove disposed circumferentially along the sleeve.

In some embodiments, the positioning groove is a groove disposed on an outer wall of the first block or the second block.

In some embodiments, a first marker is disposed on the sleeve at a location diametrically opposite the groove.

In some embodiments, the guide comprises a plug-in structure; wherein, the area of grafting structure along the cross-section of perpendicular to axis reduces from top to bottom gradually.

In some embodiments, an auxiliary needle is attached to an end of the insertion structure.

In some embodiments, the first guide block comprises a second pin hole, and the second guide block comprises a second bayonet, wherein the second bayonet can be inserted into the second pin hole to form a fit.

In some embodiments, the guide portion outer side surface includes an abutment surface, the abutment surface being disposed as a flat surface.

In some embodiments, a second marker is disposed on the guide.

In some embodiments, the first guide block comprises a first pull handle and the second guide block comprises a second pull handle.

Drawings

The present application will be further explained by way of exemplary embodiments, which will be described in detail by way of the accompanying drawings. These embodiments are not intended to be limiting, and in these embodiments like numerals are used to indicate like structures, wherein:

FIG. 1 is a schematic structural view of a lancing instrument according to some embodiments of the present description;

FIG. 2 is a schematic diagram of a lancing device according to some embodiments of the present description;

FIG. 3 is an exploded schematic view of the piercing instrument assistance assembly according to some embodiments herein;

FIG. 4 is a schematic pre-assembly structure of a sleeve and lancing apparatus according to some embodiments of the present description;

FIG. 5 is a schematic pre-assembly structure of a sleeve and lancing apparatus according to some embodiments of the present description;

FIG. 6 is a schematic structural view of the assembled sleeve and lancing instrument according to some embodiments of the present description;

FIG. 7 is a schematic structural view of the assembled sleeve and lancing instrument according to some embodiments of the present description;

FIG. 8 is a schematic structural view of a guide shown in accordance with some embodiments of the present disclosure prior to assembly with a lancing instrument;

FIG. 9 is a schematic structural view of a guide shown in accordance with some embodiments of the present disclosure prior to assembly with a lancing instrument;

FIG. 10 is a schematic structural view of a guide portion according to some embodiments of the present description;

FIG. 11 is a schematic view of an assembly of the sleeve as installed according to some embodiments of the present disclosure;

FIG. 12 is a schematic view of the assembly of the guide shown in accordance with some embodiments of the present description;

FIG. 13 is a schematic structural view of the lancing instrument secured to the lancing device by the lancing instrument auxiliary assembly according to some embodiments of the present description.

Detailed Description

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings used in the description of the embodiments will be briefly introduced below. It is obvious that the drawings in the following description are only examples or embodiments of the application, from which the application can also be applied to other similar scenarios without inventive effort for a person skilled in the art. Unless otherwise apparent from the context, or otherwise indicated, like reference numbers in the figures refer to the same structure or operation.

In an interventional operation (or referred to as a puncture operation), a puncture device is used to insert a puncture instrument into a human body for puncture without an operator being located at a puncture site, so that the puncture site can be provided with an imaging device having radiation to acquire image assistance in real time (e.g., to acquire a puncture position and a lesion position in real time). The operator can stay outside the puncture site to control the puncture device to puncture based on the assistance of the image acquired in real time, so that the precision, the fluency and the safety of the puncture operation can be improved, and the puncture operation can be remotely performed. Accordingly, to ensure the accuracy of the puncturing operation, a corresponding auxiliary assembly (or adapter) is required to guide the puncturing device during the puncturing procedure. In some embodiments, the accessory assembly may include a length of channel within which the penetrating instrument is positioned and movable, the penetrating instrument being insertable into a body under guidance of the channel to penetrate. However, since the channel of the auxiliary assembly only guides the puncture device, i.e., only limits the direction of the puncture device, and cannot provide puncture power for the puncture device, the axial position of the puncture device (e.g., the depth of the puncture device inserted into the human body) cannot be located. In some embodiments, when a plurality of different puncture instruments which may be used in an interventional operation are fixed to the puncture device, since different puncture instruments are difficult to clamp and fix, in order to ensure that the puncture device can provide puncture power for the puncture instrument, the auxiliary assembly may include a baffle, the baffle may abut against the top of the puncture instrument, and then the puncture device may push the puncture instrument to be inserted into a human body for puncture by controlling the movement of the baffle. However, this only ensures that the puncturing device transmits unidirectional power to the puncturing apparatus to push the puncturing apparatus to move forward along the puncturing direction, and the puncturing apparatus cannot move backward and forward to adjust the puncturing track, so that the puncturing precision and convenience are limited.

In order to solve the above problems, embodiments of the present specification provide a puncture device assist assembly having not only a guide portion that can be used to guide a puncture device, but also a sleeve that can be used to fix the puncture device to a puncture apparatus so that the puncture apparatus can insert or withdraw the puncture device into or from a human body to complete puncture. By way of illustration, the lancing instrument assist assembly provided in the present description of embodiments can secure a lancing instrument 100 as shown in FIG. 1 to a lancing device 200 as shown in FIG. 2.

To facilitate a better description of the lancing instrument auxiliary assembly provided in the present description of embodiments, the lancing instrument 100 shown in FIG. 1 and the lancing device 200 shown in FIG. 2 are first described.

As shown in fig. 1, the penetrating instrument 100 may be a penetrating trocar. The puncture instrument 100 may include a needle cap 110, a needle handle 120, and an outer needle 130. Wherein the needle shaft 120 has a cross-sectional dimension greater than the diameter of the outer needle 130. In some embodiments, the cross-sectional dimension of the needle handle 120 may be a cross-sectional dimension of the needle handle 120 along an axis perpendicular to the outer needle 130. In some embodiments, when the needle handle 120 is cubic in shape, the needle handle 120 is rectangular in cross-section and may have a cross-sectional dimension that is the length, width, or diagonal length of the rectangle. In some embodiments, when the needle shaft 120 is shaped as a sphere, the needle shaft 120 is circular in cross-section, and the cross-sectional dimension may be the diameter of the circle. In some embodiments, when the needle handle 120 is irregularly shaped, the cross-sectional dimension of the needle handle 120 being greater than the diameter of the outer needle 130 may be such that the smallest cross-sectional dimension of the needle handle 120 is greater than the diameter of the outer needle 130. In some embodiments, when the cross-sectional shape of the needle shaft 120 is an irregular shape, the cross-sectional dimension may be the diameter of an equivalent circle (e.g., an inscribed circle or a circumscribed circle) of the irregular shape. In some embodiments, an inner needle is received within the outer needle 130, and one end of the inner needle is connected to the needle cap 110.

As shown in fig. 2, lancing device 200 can include a base 210 and first and second clamp assemblies 220 and 230 arranged in a top-to-bottom sequence. Wherein, the first clamping assembly 220 may include a sleeve mounting groove 221, a first clamping jaw 222 and a slider 223; the second clamping assembly 230 may include a guide mounting groove 231 and a second clamping jaw 232. Wherein, the sleeve mounting groove 221 and the first clamping jaw 222 are disposed on the slider 223, the slider 223 is slidably disposed on the base 210, and the guide mounting groove 231 and the second clamping jaw 232 are disposed on the base 210. For example, the first clamping claw 222 may be fixedly connected with the sliding block 223, and the sleeve mounting groove 221 may be directly opened on the sliding block 223 or fixedly connected with the sliding block 223; the second clamping jaw 232 may be fixedly connected with the base 210, and the guide portion mounting groove 231 may be directly opened on the base 210 or fixedly connected with the base 210. The slider 223 may move linearly relative to the base 210 based on control commands received by the lancing device 200. The base 210 is further provided with an operating mechanism 212, and the operating mechanism 212 can control the opening and closing of the first clamping claw 222 and the second clamping claw 232. In some embodiments, the operating mechanism 212 may control the first gripper jaw 222 and the second gripper jaw 232 to open or close simultaneously. In some embodiments, the operating mechanism 212 may control the first clamping jaw 222 and the second clamping jaw 232 to open or close individually. In some embodiments, the operating mechanism 212 may control the opening or closing of the first clamping jaw 222 and the second clamping jaw 232 by mechanical transmission or motor drive.

The puncture instrument assist assembly provided by the embodiments of the present description may include a sleeve and a guide. The sleeve comprises a first block body and a second block body, and the first block body and the second block body can be oppositely arranged to form a first cavity; the sleeve comprises a first clamping and positioning structure; the guide part may include a first guide block and a second guide block, and the first guide block and the second guide block may be oppositely disposed to form a second cavity; the guide portion includes a second clamping and positioning structure. Specifically, the first and second blocks may be assembled to the needle handle 120 such that the needle handle 120 is received within the first cavity and does not slide within the first cavity; the first and second guide blocks may be assembled to portions of the outer needle 130 such that portions of the outer needle 130 are received within the second cavity and are slidable within the second cavity. After the assembly of puncture instrument 100 and the puncture instrument assisting assembly provided in the present embodiment is completed, the sleeve may be mounted to sleeve mounting groove 221 and the first holding and positioning structure on the sleeve is gripped by first holding claw 222, the guide may be mounted to guide mounting groove 231 and the second holding and positioning structure on the guide is gripped by second holding claw 232, thereby achieving the fixing of puncture instrument 100 to puncture device 200 by the puncture instrument assisting assembly provided in the present embodiment. When puncturing, the puncturing device 200 can control the sliding block 223 to slide based on the received control command, so as to drive the puncturing device 100 to perform up-and-down linear motion for puncturing. The puncture instrument auxiliary assembly provided by the embodiment of the specification fixes the puncture instrument 100 to the puncture device 200, guides the puncture instrument 100 when the puncture device 200 inserts the puncture instrument 100 into a human body, can realize accurate positioning of the puncture instrument 100 in a puncture process, and improves puncture precision. The sleeve and the guide part in the puncture instrument auxiliary assembly provided by the embodiment of the specification can be split in half along the axial direction, so that the assembly and the disassembly of the puncture instrument 100 are facilitated, the first cavity and the second cavity can be split in half along the axial direction after the splitting, the inner walls of the first cavity and the second cavity can be sterilized fully, and the puncture instrument auxiliary assembly after the sterilization can be reused. In addition, the first clamping and positioning structure on the sleeve and the second clamping and positioning structure on the guide part in the auxiliary assembly for the puncture instrument provided by the embodiment of the specification can be respectively clamped by the first clamping claw 232 and the second clamping claw 232 on the puncture device 200, and the auxiliary assembly for the puncture instrument and the puncture device 200 can be quickly disassembled and assembled by controlling the opening and closing of the first clamping claw 222 and the second clamping claw 232, so that the use and the operation of an operator are facilitated. It should be noted that the puncturing device 100 shown in fig. 1 and the puncturing apparatus 200 shown in fig. 2 are only exemplary descriptions and are not intended to limit the puncturing device auxiliary assembly in this specification, and the puncturing device auxiliary assembly provided in the embodiments of this specification may also be applied to fix other puncturing devices to other puncturing devices, and when any puncturing device is fixed to any puncturing device, it is within the scope of the present specification to use the puncturing device auxiliary assembly provided in the embodiments of this specification or similar technical solutions to the puncturing device auxiliary assembly provided in the embodiments of this specification.

The puncture instrument assist assembly provided in the present specification will be described in detail below with reference to the accompanying drawings.

Fig. 3 is an exploded view of a piercing instrument assistance assembly according to some embodiments of the present description.

As shown in fig. 3, the penetrating instrument assist assembly 300 may include a sleeve 310 and a guide 320. The sleeve 310 may include a first block 311 and a second block 312, the first block 311 and the second block 312 may be disposed opposite to each other to form a first cavity, and the sleeve 310 may be disposed with a first clamping and positioning structure 313. The guide portion 320 may include a first guide block 321 and a second guide block 322, the first guide block 321 and the second guide block 322 may be oppositely disposed to form a second cavity, and the guide portion 320 provides a second clamping and positioning structure.

In some embodiments, the material of the piercing instrument assistance assembly 300 may be an aluminum alloy. Further, the piercing instrument aid 300 surface may be anodized. Through setting up like this, can make puncture instrument auxiliary assembly 300 have good biocompatibility, contact the surface of a wound can not cause the infection risk after through sterilization treatment yet.

Fig. 4 and 5 are schematic views of the sleeve and lancing apparatus shown in accordance with some embodiments of the present disclosure, prior to assembly.

As shown in conjunction with fig. 3, 4, and 5, the first block 311 and the second block 312 may be assembled to the needle shaft 120 such that the needle shaft 120 is located within the first cavity. Specifically, the sleeve 310 may be assembled from a first block 311 and a second block 312, the first block 311 may be provided with a first groove 3111, and the second block 312 may be provided with a second groove 3121. When the first block 311 and the second block 312 are assembled to the needle handle 120, the first groove 3111 and the second groove 3121 may be oppositely disposed to form a first cavity, so as to sleeve the sleeve 310 on the needle handle 120. In some embodiments, the spatial shape of the first cavity is adapted to the shape of the needle handle 120, so as to increase the reliability of the assembly between the sleeve 310 and the needle handle 120, avoid the relative sliding or loosening of the sleeve 310 on the needle handle 120, facilitate the axial positioning of the puncture device during the puncture process, and ensure that the puncture device can advance or retreat along the puncture direction when the puncture device provides a bidirectional axial puncture power, thereby facilitating the puncture trajectory of the puncture device, and improving the accuracy and convenience of puncture. For example, as shown in fig. 4 and 5, the needle handle 120 is composed of a cylinder, a square body and a cylinder along the axial direction thereof, and correspondingly, the spatial shape of the first cavity formed by the oppositely arranged first groove 3111 and second groove 3121 also includes a cylinder, a square body and a cylinder with the same or substantially the same size along the axial direction thereof. In some embodiments, the spatial shape of the first cavity can be adjusted to accommodate different types or sizes of needle handles of lancing instruments due to the different shapes or sizes of the needle handles.

In some embodiments, after the sleeve 310 is mounted on the needle handle 120, the needle cap 110 is exposed outside the sleeve 310 and above the sleeve 310, and when the puncture is performed, the operator can withdraw the inner needle from the outer needle 130 through the needle cap 110 to perform a subsequent surgical operation. For example, after the puncture device 100 is punctured to a predetermined position, the operator can hold the needle cap 110 with the hand or the robot arm to automatically pull the inner needle out of the needle channel in the outer needle 130, and at this time, the channel of the outer needle 130 becomes a channel connecting the target tissue and the body surface, and the operator (e.g., a doctor) can directly send the biopsy device to the predetermined position using the channel to perform a biopsy operation.

In some embodiments, a cross-section of the first cavity along a direction perpendicular to the axis may include at least a non-circular cross-section. For example, as shown in fig. 4 and 5, the space shape of the first cavity formed by the first groove 3111 and the second groove 3121 disposed opposite to each other is a square body, and the cross section of the square body perpendicular to the axis is a rectangular cross section, not a circular cross section. By providing that the first cavity may include at least a non-circular cross-section along a cross-section perpendicular to the axis, relative rotation between the sleeve 310 and the needle shaft 120 may be effectively limited after the sleeve 310 is mounted on the needle shaft 120, thereby preventing the rotational direction (or orientation of the outer needle 130) of the puncture instrument 100 from changing during puncture, and thus improving puncture accuracy. In some embodiments, the shape of the non-circular cross-section may include regular or other irregular shapes such as triangles, rectangles, regular pentagons, regular hexagons, and the like.

In some embodiments, the first cavity may include a first sub-cavity, a second sub-cavity, and a third sub-cavity arranged in order along the axis direction. Wherein the inner diameter of the second sub-cavity is larger than the inner diameters of the first sub-cavity and the third sub-cavity. In some embodiments, when the cross-section of the first, second and third sub-cavities along the axis is a circular cross-section, the inner diameter of the first, second and third sub-cavities may be a diameter corresponding to the circular cross-section. In some embodiments, when the cross-section of the first, second, and third sub-cavities along the axis is a non-circular cross-section (e.g., triangular, rectangular, pentagonal, hexagonal, etc.), the inner diameter of the first, second, and third sub-cavities may be the diameter of an equivalent circle of the corresponding non-circular cross-section. In some embodiments, an equivalent circle of non-circular cross-section may refer to a circumscribed circle, an inscribed circle, etc. of the non-circular cross-sectional shape. For example, when the non-circular cross-section has a triangular shape, the equivalent circle may be a circumscribed circle or an inscribed circle of the triangle. By such arrangement, when the needle handle 120 is located in the second sub-cavity, the needle handle 120 is effectively limited from moving in the second sub-cavity along the axial direction of the second sub-cavity, that is, no relative displacement is generated between the puncture instrument 100 and the sleeve 310 in the axial direction of the second sub-cavity, so that the puncture power in the axial direction (i.e., the axial direction of the puncture instrument 100 or the sleeve 310) provided by the puncture device 200 can be transmitted to the puncture instrument 100 through the sleeve 310, and the puncture instrument 100 can move in the axial direction thereof to perform puncture.

In some embodiments, as shown in conjunction with fig. 4 and 5, the first block 311 may include a first pin hole 3112 and the second block 312 may include a first detent 3122. Therein, the first latch 3122 can be inserted into the first pin hole 3112 to form a fit, thereby assembling the first block 311 and the second block 312 into the sleeve 310. The insertion and engagement of the first pin 3122 and the first pin hole 3112 can prevent the sleeve 310 from being detached (i.e. the first block 311 and the second block 312 are separated) when the sleeve 310 is mounted on the needle handle 120, so as to prevent the sleeve 310 from being separated from the needle handle 120 by itself, and after the puncture is completed, an operator can easily separate the first block 311 and the second block 312 to detach the sleeve 310 from the needle handle 120. In addition, since bacteria are easily concentrated or bred in the first cavity, the first block 311 and the second block 312 are separated, so that the first groove 3111 and the second groove 3121 can be sterilized by an operator, and the sleeve 310 can be reused after sterilization. In some embodiments, the first pin hole 3112 may be a groove structure disposed on a surface of the first block 311 opposite to the second block 312, and accordingly, the first pin may be a protrusion structure disposed on a surface of the second block 312 opposite to the first block 311 to be fitted with the groove structure. In some embodiments, the size of the protrusion structure may be slightly larger than that of the groove structure, so that the protrusion structure and the groove structure can form a relatively close insertion fit to improve the structural reliability after the first block 311 and the second block 312 are assembled into the sleeve 310, and at the same time, it is ensured that an operator can easily and quickly disassemble the sleeve 310 into the first block 311 and the second block 312. In some embodiments, the shape of the protruding structures may be regular or irregular shapes such as squares, cylinders, and the like. In some embodiments, the first block 311 and the second block 312 may be assembled by bolting to form the sleeve 310. As an exemplary illustration, the first block 311 and the second block 312 are opened with through holes at the same position, and an operator may insert bolts of corresponding sizes through the through holes of the first block 311 and the second block 312 and then nut-tighten them, so that the first block 311 and the second block 312 are assembled into the sleeve 310.

In some embodiments, as shown in connection with FIGS. 2-5, when securing a lancing apparatus to lancing device 200, sleeve 310 can be mounted in sleeve mounting slot 221 and first clamping jaw 222 can clamp first clamping detent 313 on sleeve 310 to mount sleeve 310 to lancing device 200 and can be varied in position as slider 223 slides (i.e., moves linearly with respect to base 210). In some embodiments, the outer profile of the sleeve 310 may match the sleeve mounting groove 221, for example, the outer profile of the sleeve 310 is a cambered surface, and the sleeve mounting groove 221 is an arc mounting groove adapted to the cambered surface, so that the sleeve 310 may be tightly and reliably mounted in the sleeve mounting groove 221, and the risk of the sleeve 310 separating from the sleeve mounting groove 221 or shaking in the sleeve mounting groove 221 may be reduced. The first clamping and positioning structure 313 is clamped by the first clamping claw 222, so that the sleeve 310 can be tightly pressed in the sleeve mounting groove 221, and the sliding block 223 can drive the sleeve to move up and down through the first clamping claw 222 and the sleeve mounting groove 221 when the sliding block 223 slides in the puncturing process, so that the puncturing instrument (for example, the puncturing instrument 100) is driven to move in the puncturing direction to puncture.

In some embodiments, the first clamping and positioning structure 313 can be a positioning slot formed in the outer wall of the sleeve 310. In some embodiments, the cartridge mounting groove 221 may be provided with a positioning structure 224 engaged with the positioning groove, and the mounting position of the cartridge 310 in the cartridge mounting groove 221 may be determined and confirmed by snapping the positioning structure 224 into the positioning groove. In some embodiments, the positioning structure 224 engaged with the positioning groove may also be disposed on the first clamping claw 222, and the positioning structure and the positioning groove may cooperate to ensure that the first clamping claw 222 can better clamp the sleeve 310. In some embodiments, as shown in fig. 4 and 5, the detents may be annular grooves disposed circumferentially along the sleeve 310. Specifically, half annular grooves are respectively opened on the outer walls of the first block 311 and the second block 312, and when the first block 311 and the second block 312 are assembled to form the sleeve 310, the two half annular grooves can form an annular groove. By providing the first clamp locating feature 313 as an annular groove, the sleeve 310 may be easily installed into the sleeve mounting slot 221 at any angle (e.g., any angle of rotation about its axis).

Fig. 6 and 7 are schematic views of the assembled sleeve and lancing instrument according to some embodiments of the present disclosure.

In some embodiments, as shown in fig. 6 and 7, the positioning groove may be a groove 3131 disposed on an outer wall of the first block 311 or the second block 312. In some embodiments, the left and right opposite sides of the groove 3131 are parallel to each other, and the up and down opposite sides are inclined planes (e.g., the cross-sectional shape of the groove 3131 parallel to the axis of the sleeve 310 is trapezoidal, V-shaped, etc.). When the positioning structure 224 (e.g., a protrusion fitted with the groove 3131) on the cartridge mounting groove 221 is caught in the groove 3131, the rotation direction of the puncture instrument is the correct direction in the puncture treatment. The design of recess can effectively restrict the rotation of sleeve 310, and then guarantees that the direction of rotation of puncture instrument can not change, prevents that the direction of rotation of puncture instrument from changing and causing the influence to the puncture, for example, influences the puncture precision.

In some embodiments, as shown in fig. 6 and 7, a first marker 314 may be disposed on the sleeve 310 at a location radially opposite the indentation 3131. Specifically, the groove 3131 and the first mark 314 may be respectively disposed on the outer walls of the first block 311 and the second block 312, and it should be noted that the position of the first mark 314 opposite to the groove 3131 in the radial direction of the sleeve 310 may mean that the first mark 314 and the groove 3131 are opposite in the radial direction in the same cross section of the sleeve 310 perpendicular to the axis thereof, that is, the groove 3131 and the first mark 314 have no spacing in the axial direction of the sleeve 310, or may mean that the first mark 314 and the groove 3131 are opposite in the radial direction in different cross sections of the sleeve 310 perpendicular to the axis thereof, that is, the groove 3131 and the first mark 314 have a spacing in the axial direction of the sleeve 310. The first marker 314 can be used to mark a needle handle (e.g., needle handle 120) of a piercing instrument during a piercing process to locate the needle handle position during the piercing process. In some embodiments, the first marker 314 may be a ball target of an optical tracking device or other marker that can be identified by the optical tracking device, and the optical tracking device can track and identify the first marker 314, so that the needle shaft position can be determined in real time, so that the axial positioning of the piercing instrument can be more accurately achieved during the piercing process. In addition, by disposing the first marker 314 at a position radially opposite to the groove 3131, when the sleeve 310 is installed in the sleeve installation groove 221 and clamped by the first clamping jaw 222, the rotation direction (or orientation) of the first marker 314 is also determined, and the first marker 314 is not obstructed by the sleeve installation groove 221 and/or the first clamping jaw 222, so that the optical tracking device can better identify the first marker 314.

Fig. 8 and 9 are schematic structural views of a guide shown in accordance with some embodiments of the present disclosure prior to assembly with a lancing instrument.

As shown in fig. 3, 8, and 9, the first guide block 321 and the second guide block 322 may be assembled into the guide part 320. Specifically, the first guide block 321 may be provided with a first pipe groove 3211, and the second guide block 322 may be provided with a second pipe groove 3221. When the first and second guide blocks 321 and 322 are assembled into the guide part, the first and second tube slots 3211 and 3221 may be oppositely disposed to form a second cavity, and the outer needle 130 may pass through and be movable in the second cavity. In some embodiments, the cross-section of the second cavity along the axis may be a circular cross-section, and the diameter of the circular cross-section may correspond to the diameter of the outer needle 130, so that the outer needle 130 located in the second cavity can only advance or retreat in the direction of the axis of the second cavity, thereby functioning as a guide for the puncture instrument. In some embodiments, a series of guides 320 may be provided, depending on the gauge of the lancing instrument to be installed, wherein the diameter of the second cavity of each guide 320 is different to accommodate different outer needle diameters for different gauges of lancing instruments.

In some embodiments, as shown in connection with fig. 8 and 9, the first guide block 321 can include a second pin hole 3212 and the second guide block 322 can include a second detent 3222. Wherein, the second locking pin 3222 can be inserted into the second pin hole 3212 to form a fit, so as to assemble the first guide block 321 and the second guide block 322 into the guide portion 320. The structure of the second pin hole 3212 and the second detent 3222 may be similar to the structure of the first pin hole 3112 and the first detent 3122, and more description about how the second pin hole 3212 and the second detent 3222 and the first guide block 321 and the second guide block 322 are assembled into the guide portion 320 may be referred to the description about the assembly of the first pin hole 3112 and the first detent 3122 and the first block 311 and the second block 312 into the guide portion 320, and will not be described again. Since the outer needle 130 is inserted into the human body through the second cavity, in order to prevent the outer needle 130 from being contaminated and causing infection to the patient, the sterilization process is required to be performed frequently in the second cavity, and by separating the first guide block 321 and the second guide block 322, the operator can conveniently perform the sterilization process on the first pipe groove 3211 and the second pipe groove 3221, so that the second cavity can be sufficiently sterilized, and the guide part 320 can be conveniently reused after the sterilization process. In some embodiments, the first guide block 321 and the second guide block 322 may be a single-piece structure, that is, the guide portion 320 is a non-detachable integral structure, wherein the second cavity may be a channel opened in the guide portion 320, and the channel may be passed through by the outer needle 130 and moved along the axial direction of the channel.

In some embodiments, as shown in fig. 2, 3, 8 and 9, when the puncture device is fixed to the puncture device 200, the guide 320 may be fitted into the guide fitting groove 231, and the second holding claw 232 may hold the second holding positioning structure 323 on the guide 320, so that the guide 320 is fitted to the puncture device 200 and fixed in position on the puncture device 200. In some embodiments, the contact surface between the guide mounting groove 231 and the guide 320 may be a flat surface, which may limit the rotation of the guide 320. In some embodiments, the second clip positioning structure 323 can be a positioning slot formed in an outer wall of the guide 320. In some embodiments, as shown in fig. 2, the second clamping claw 232 is provided with a positioning structure 233, and the positioning structure 233 is engaged with the positioning groove, so that the second clamping claw 232 can better clamp the guide part 320 by clamping the positioning structure 233 into the positioning groove, and the axial movement of the guide part 320 in the second clamping claw 232 is effectively limited. In some embodiments, the positioning groove may be an annular groove disposed circumferentially along the guide 320.

In some embodiments, as shown in fig. 8 and 9, the guide 320 may include a plug structure 324. Wherein, the area of the cross section of the plug-in structure 324 along the axis (the axis of the second cavity) is gradually reduced from top to bottom (i.e. the direction from the needle cap to the needle tip), for example, the shape of the plug-in structure 324 may be wedge-shaped, cone-shaped, etc. With this arrangement, when the guide part 320 is mounted in the guide part mounting groove 231, it is convenient to insert the guide part 320 into the guide part mounting groove 231 from above the guide part mounting groove 231 so as to be positioned between the second clamping claws 232 and clamped by the second clamping claws 232, so that the guide part 320 can be better clamped by the second clamping claws 232 and thus reliably mounted in the guide part mounting groove 231.

FIG. 10 is a schematic view of a guide portion according to some embodiments of the present disclosure.

In some embodiments, as shown in fig. 10, the end of the plug structure 324 may be connected with an auxiliary needle 325, and the auxiliary needle 325 has a certain extension length and a sharp front end. In some embodiments, the auxiliary needle 325 may be formed by the first guide block 321 and the second guide block 322 being oppositely disposed. Specifically, the first guide block 321 and the second guide block 322 are respectively provided with auxiliary needles having a semicircular cross section, and when the first guide block 321 and the second guide block 322 are assembled into the guide part 320, the auxiliary needles having a semicircular cross section on the first guide block 321 and the second guide block 322 may form a complete auxiliary needle 325. Through setting up supplementary syringe needle 325, can be before using the puncture instrument to puncture, operate piercing depth 200 earlier and move towards patient puncture position, utilize supplementary syringe needle 325 to carry out the operation of breaking the skin to patient's puncture position, can avoid like this because of the more difficult puncture of skin, if the condition emergence of crooked deformation takes place for the puncture instrument is direct to puncture skin, thereby guarantee that the puncture instrument can arrive the target location smoothly, and owing to reduced the deformation of puncture instrument, be favorable to improving the puncture precision.

In some embodiments, as shown in conjunction with fig. 2, 8, 9, and 10, the outer side of the guide 320 may include an abutment surface 326, and the abutment surface 326 may be disposed as a flat surface. When the guide 320 is fitted into the guide fitting groove 231 and held by the second holding claw 232, the abutting surface 326 can abut against the bottom surface 2311 of the guide fitting groove 231, and by providing the abutting surface 326 as a flat surface, the abutting surface 326 can be brought into sufficient abutment against the bottom surface 2311 of the guide fitting groove 231, which can effectively restrict the guide 320 from rotating to improve the piercing accuracy.

In some embodiments, as shown in fig. 10, a second marker 327 may be disposed on the guide 320. In some embodiments, a second marker 327 may be disposed on the guide 320 on a side opposite the abutment surface 326. In some embodiments, the line connecting the center of the first marker 314 to the center of the second marker 327 may be parallel to the axial direction of the penetrating instrument. In some embodiments, the second marker 327 is trackable with the first marker 314 by the same optical tracking device. In some embodiments, the penetration depth of the penetration instrument may be acquired in real time by identifying the first marker 314 and the second marker 327 through an optical tracking device. In some embodiments, the amount of change in the distance between the first marker 314 and the second marker 327 during penetration is the penetration depth of the penetration instrument. In some embodiments, the axial direction of the puncture instrument (outer needle) can be acquired in real time by identifying the first marker 314 and the second marker 327 through an optical device, and the puncture instrument (outer needle) is prevented from deviating from the predetermined puncture direction. Specifically, during the puncturing procedure, the axial direction of the puncturing instrument can be determined according to the line connecting the center of the first marker 314 to the center of the second marker 327. Furthermore, the puncture depth and the axis direction of the puncture instrument can be acquired in real time in the puncture process, so that the puncture precision can be improved. In this embodiment, by disposing the second marker 327 on the guide portion 320 at a position opposite to the abutting surface 326, when the guide portion 320 is installed in the guide portion installation groove 231 and clamped by the second clamping claw 232, the position of the second marker 327 can be determined, and the second marker 327 is not shielded by the guide portion installation groove 231 and/or the second clamping claw 232, so that the optical tracking device can better identify the second marker 327. By providing the abutting surface 326 as a flat surface to limit the rotation of the guide portion 320, the orientation of the second marker 327 can be prevented from being changed to affect the piercing accuracy. For example, if the orientation of the second marker 327 changes during the puncturing process, the puncturing depth and the puncturing direction obtained by identifying the first marker 314 and the second marker 327 according to the optical tracking apparatus may be deviated.

In some embodiments, as shown in fig. 10, the first guide block 321 may include a first pull handle 3213, the second guide block 322 may include a second pull handle 3223, and the first pull handle 3213 and the second pull handle 3223 may be easily grasped by an operator to apply a force to facilitate separation of the guide portion 320 into the first guide block 321 and the second guide block 322 before or after surgery.

How the puncture device assist assembly 300 provided in the present embodiment fixes the puncture device 100 to the puncture apparatus 200 to perform a puncture operation will be described in detail with reference to the drawings.

In securing lancing instrument 100 to lancing device 200 via a lancing instrument assist assembly, it is first necessary to complete the assembly of sleeve 310 and guide 320 with lancing instrument 100, i.e., assembly of sleeve 310 to needle shaft 120 and passage of outer needle 130 through the second cavity of guide 320. Next, lancing instrument 100 can be secured to lancing device 200 in a sequential assembly process as shown in FIGS. 11 and 12.

Fig. 11 is an assembly schematic view of a sleeve as installed according to some embodiments described herein. FIG. 12 is a schematic view of an assembly of the guide shown in accordance with some embodiments of the present description.

As shown in fig. 11, the sleeve 310 is placed in the sleeve mounting groove 221 with the first grip positioning structure 313 (positioning groove) aligned with the positioning structure on the sleeve mounting groove 221 or the first grip pawl 222, and then the first grip pawl 222 is controlled to be closed using the operating mechanism 212, with the guide 320 located between the sleeve 310 and the guide mounting groove 231 (or the second grip pawl 232) and slidable on the outer needle 130 of the puncture instrument 100. Wherein the insertion structure 324 of the guide 320 faces the guide mounting groove (or the second clamping jaw 232).

As shown in fig. 12, in some embodiments, the operating mechanism 212 may synchronously control the first gripper 222 and the second gripper 232 to open and close, so that when the first gripper 222 is closed, the second gripper 232 is also in a closed state. Therefore, in order to clamp the guide part 320 between the second clamping claws 232 in the closed state of the second clamping claws 232, the guide part 320 may be slid downward after the installation of the sleeve 310 is completed, and after the end of the insertion structure 324 facing the second clamping claws 232 is in contact with the second clamping claws 232, the guide part 320 may be squeezed between the second clamping claws 232 by forcibly pushing the guide part 320 due to the gradual decrease in area of the cross section of the insertion structure 324 from top to bottom along a direction perpendicular to the axis, and when the second clamping positioning structure 323 (positioning groove) is aligned with the guide part installation groove 231 or the positioning structure on the second clamping claws 232, the installation of the guide part 320 may be completed. In some embodiments, the operating mechanism 212 may separately control the first clamping jaw 222 and the second clamping jaw 232, and then directly align the second clamping and positioning structure 323 (positioning slot) with the guiding portion mounting slot 231 or the positioning structure on the second clamping jaw 232, and then separately control the second clamping jaw 232 to close by the operating mechanism 212 to clamp the guiding portion 320, thereby completing the mounting of the guiding portion 320. After installation of sleeve 310 and guide 320 is complete, securing of lancing instrument 100 to lancing device 200 by lancing instrument auxiliary assembly 300 is also complete.

FIG. 13 is a schematic structural view of the lancing instrument secured to the lancing device by the lancing instrument auxiliary assembly according to some embodiments of the present description.

As shown in FIG. 13, sleeve 310 is mounted between first clamping jaw 222 and sleeve mounting slot 221, guide 320 is mounted between second clamping jaw 232 and guide mounting slot 231, and outer needle 130 of lancing instrument 100 passes through the second cavity of guide 320. The sleeve 310 can move up and down relative to the puncturing device 200 (the base 210) along with the sliding of the slider 223, and the puncturing apparatus 100 can move up and down under the driving of the sleeve 310, wherein the second cavity of the guiding part 320 can guide the puncturing direction of the puncturing apparatus 100, that is, the puncturing apparatus 100 can move relative to the guiding part 320 along the axial direction of the second cavity.

The beneficial effects that may be brought by the embodiments of the present description include, but are not limited to: (1) in the puncture instrument auxiliary assembly provided by the embodiment of the specification, the puncture instrument is fixed to the puncture device through the sleeve, and the guide part guides the puncture direction of the puncture instrument, so that the puncture instrument is conveniently positioned, and the puncture precision is favorably improved; (2) the first marker on the sleeve and the second marker on the guide part are identified by the optical tracking equipment, so that the position and the axis direction of the puncture instrument can be accurately determined, and the puncture precision can be better improved; (3) the sleeve can be split into a first block body and a second block body, and the guide part can be split into a first guide block and a second guide block, so that the sleeve is convenient to mount and split after operation; (4) after the sleeve and the guide part are disassembled, the first cavity and the second cavity are also disassembled, so that the first cavity and the second cavity can be sterilized conveniently, and the puncture instrument auxiliary assembly can be reused after sterilization; (5) different sizes or kinds of puncture instruments can be fixed to the same puncture device by adjusting the shape and size of the first cavity and/or the second cavity; (6) the puncture instrument auxiliary assembly provided by the embodiment of the specification has good biocompatibility, and does not generate infection risk when contacting with a wound surface after sterilization treatment; (7) the sleeve and the guide part in the auxiliary assembly of the puncture instrument are arranged on the puncture device through the clamping claws, so that the auxiliary assembly of the puncture instrument can be quickly separated from the puncture device; (8) through setting up supplementary syringe needle on the guide part, utilize supplementary syringe needle can carry out the operation of splitting skin to patient's puncture position in advance, can avoid like this because of the more difficult puncture of skin, if the condition that the puncture instrument is direct to puncture skin and take place crooked deformation takes place to guarantee that the puncture instrument can arrive the target location smoothly, and owing to reduced the deformation of puncture instrument, be favorable to improving the puncture precision.

It is to be noted that different embodiments may produce different advantages, and in different embodiments, any one or combination of the above advantages may be produced, or any other advantages may be obtained.

Having thus described the basic concept, it will be apparent to those skilled in the art that the foregoing detailed disclosure is to be considered merely illustrative and not restrictive of the broad application. Various modifications, improvements and adaptations to the present application may occur to those skilled in the art, although not explicitly described herein. Such modifications, improvements and adaptations are proposed in the present application and thus fall within the spirit and scope of the exemplary embodiments of the present application.

Also, the present application uses specific words to describe embodiments of the application. Reference throughout this specification to "one embodiment," "an embodiment," and/or "some embodiments" means that a particular feature, structure, or characteristic described in connection with at least one embodiment of the present application is included in at least one embodiment of the present application. Therefore, it is emphasized and should be appreciated that two or more references to "an embodiment" or "one embodiment" or "an alternative embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, some features, structures, or characteristics of one or more embodiments of the present application may be combined as appropriate.

Similarly, it should be noted that in the preceding description of embodiments of the application, various features are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure aiding in the understanding of one or more of the embodiments. This method of disclosure, however, is not intended to imply that more features are required than are expressly recited in the claims. Indeed, the embodiments may be characterized as having less than all of the features of a single embodiment disclosed above.

Finally, it should be understood that the embodiments described herein are merely illustrative of the principles of embodiments of the present application. Other variations are also possible within the scope of the present application. Thus, by way of example, and not limitation, alternative configurations of the embodiments of the present application may be viewed as being consistent with the teachings of the present application. Accordingly, the embodiments of the present application are not limited to only those embodiments explicitly described and depicted herein.

Claims (14)

1. A lancing instrument assist assembly, comprising:

a sleeve (310), the sleeve (310) comprising a first block (311) and a second block (312), the first block (311) and the second block (312) being oppositely arranged to form a first cavity; a first clamping and positioning structure (313) is arranged on the sleeve (310);

the guide part (320), the guide part (320) comprises a first guide block (321) and a second guide block (322), and the first guide block (321) and the second guide block (322) are oppositely arranged to form a second cavity; the guide (320) includes a second clamp locating feature (323).

2. The lancing instrument assist assembly of claim 1, wherein a cross section of the first cavity along a direction perpendicular to the axis includes at least a non-circular cross section.

3. The lancing instrument assist assembly of claim 1, wherein the first cavity includes a first sub-cavity, a second sub-cavity and a third sub-cavity arranged in series along an axial direction, wherein an inner diameter of the second sub-cavity is greater than an inner diameter of the first sub-cavity and the third sub-cavity.

4. The lancing instrument auxiliary assembly of claim 1, wherein the first block (311) includes a first pin hole (3112) and the second block (312) includes a first detent (3122), the first detent (3122) being insertable into the first pin hole (3112) for forming a fit.

5. The lancing instrument auxiliary assembly of claim 1, wherein the first clamp positioning structure (313) is a positioning slot formed in an outer wall of the sleeve (310).

6. The lancing instrument auxiliary assembly of claim 5, wherein the detent is an annular groove disposed circumferentially along the sleeve (310).

7. The lancing instrument assist assembly of claim 5, wherein the positioning groove is a groove (3131) provided on an outer wall of the first block (311) or the second block (312).

8. The lancing instrument assist assembly of claim 7, wherein a first marker (314) is disposed on the sleeve (310) at a location diametrically opposite the groove (3131).

9. The lancing instrument assist assembly of claim 1, wherein the guide (320) includes a hub structure (324); the area of the section of the inserting structure (324) perpendicular to the axis is gradually reduced from top to bottom.

10. A puncture instrument aid assembly according to claim 9, characterized in that an aid needle (325) is connected to the end of the plug structure (324).

11. The lancing instrument auxiliary assembly of claim 4, wherein the first guide block (321) includes a second pin hole (3212), and the second guide block (322) includes a second detent (3222), the second detent (3222) being insertable into the second pin hole (3212) for forming a fit.

12. The lancing instrument assist assembly of claim 1, wherein the guide (320) outer side includes an abutment surface (326), the abutment surface (326) being arranged as a flat surface.

13. The penetrating instrument auxiliary assembly according to claim 1 wherein a second marker (327) is disposed on said guide (320).

14. The lancing instrument assist assembly of claim 1, wherein the first guide block (321) includes a first pull handle (3213) and the second guide block (322) includes a second pull handle (3223).

Images