CN111436976B - Device for fixing puncture needle - Google Patents
Device for fixing puncture needle Download PDFInfo
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- CN111436976B CN111436976B CN202010352843.3A CN202010352843A CN111436976B CN 111436976 B CN111436976 B CN 111436976B CN 202010352843 A CN202010352843 A CN 202010352843A CN 111436976 B CN111436976 B CN 111436976B
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- clamping
- needle
- jaw
- sleeve
- sliding
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/10—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges for stereotaxic surgery, e.g. frame-based stereotaxis
- A61B90/11—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges for stereotaxic surgery, e.g. frame-based stereotaxis with guides for needles or instruments, e.g. arcuate slides or ball joints
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
- A61B10/02—Instruments for taking cell samples or for biopsy
- A61B10/0233—Pointed or sharp biopsy instruments
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
- A61B2018/00577—Ablation
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
- A61B2018/1405—Electrodes having a specific shape
- A61B2018/1425—Needle
Abstract
The application discloses a device for fixing a puncture needle, which comprises a supporting rod, wherein one end of the supporting rod is provided with a clamping jaw mounting part, and a mounting groove is formed in the clamping jaw mounting part; the clamping jaw assembly is arranged in the mounting groove and comprises a clamping end and a driving end, and the clamping end extends out of the clamping jaw mounting part; the sliding hole is arranged on the clamping jaw mounting part; the sliding part is arranged on the supporting rod and can slide along the transverse direction; the pressing rod is vertically arranged in the sliding hole, one end of the pressing rod extends into the driving end, the other end of the pressing rod is connected with the sliding part, and the pressing rod can be driven by the sliding part to slide in the sliding hole and the driving end along the transverse direction so as to open or close the clamping end; the elastic piece is arranged on the support rod and used for driving the pressure rod to transversely slide until the clamping end is closed; the needle head fixing assembly is clamped at the clamping end of the jaw assembly. The device of fixed pjncture needle among the correlation technique is difficult for changing the fixed subassembly of syringe needle to this application has been solved, leads to having awkward problem in the puncture is diagnose.
Description
Technical Field
The application relates to the field of puncture needle fixation, in particular to a device for fixing a puncture needle.
Background
In clinical work in hospitals, puncturing is a common and convenient diagnosis and treatment means, for example, thoracocentesis refers to an operation of puncturing skin, intercostal tissue and parietal pleura with a sterilized needle to enter a pleural cavity, and also refers to lung puncture, liver puncture, prostate puncture and the like, and doctors can perform biopsy and ablation treatment through puncturing. The device of fixed pjncture needle among the correlation technique is difficult to change the fixed subassembly of syringe needle, leads to having awkward problem in the puncture is diagnose.
The device to the fixed pjncture needle among the correlation technique is difficult for changing the fixed subassembly of syringe needle, leads to having awkward problem in the puncture is diagnose, does not put forward effectual solution at present.
Disclosure of Invention
The main aim at of this application provides a device of fixed pjncture needle to the fixed subassembly of syringe needle is difficult to be changed to the device of the fixed pjncture needle of solving among the correlation technique, leads to having awkward problem in the puncture is diagnose.
In order to achieve the above object, the present application provides an apparatus for fixing a puncture needle, comprising: the clamping jaw mounting part is arranged at one end of the supporting rod, and a mounting groove is formed in the clamping jaw mounting part; the clamping jaw assembly is arranged in the mounting groove and comprises a clamping end and a driving end, and the clamping end extends out of a clamping jaw mounting part; the sliding hole is arranged on the clamping jaw mounting part; the sliding part is arranged on the supporting rod and can slide along the transverse direction; the pressing rod is vertically arranged in the sliding hole, one end of the pressing rod extends into the driving end, the other end of the pressing rod is connected with the sliding part, and the pressing rod can be driven by the sliding part to slide in the sliding hole and the driving end along the transverse direction so as to open or close the clamping end; the elastic piece is arranged on the supporting rod and used for driving the pressing rod to transversely slide until the clamping end is closed; the needle fixing assembly is clamped at the clamping end of the jaw assembly.
Further, the jack catch subassembly includes first jack catch and second jack catch through round pin axle articulated, the both ends of first jack catch and second jack catch form respectively drive end and exposed core, the one end that the pin joint was pressed close to the drive end is the horn mouth setting, and the interval reduces gradually, and the other end can open and shut and set up and radius angle.
Further, the slide holes are arranged to be two and distributed on two sides of the clamping jaw mounting portion, and the pressing rod penetrates through the upper side slide hole, the driving end and the lower side slide hole in sequence.
Further, the sliding part is set to be a sleeve component, the sleeve component is sleeved on the supporting rod in a sliding mode, and the upper end and the lower end of the pressing rod are connected with the sleeve component.
Further, sleeve subassembly includes preceding sleeve and back sleeve, back sleeve pot head is established on the bracing piece, the other end and preceding sleeve threaded connection, preceding sleeve is seted up screwed one end and is provided with the breach with depression bar sliding connection, the upper and lower both ends of depression bar all extend the breach, the jack catch installation department is located in the common cavity that forms of preceding sleeve and back sleeve.
Further, the inner side of the front sleeve is provided with two convex blocks, the convex blocks are connected with the side faces of the first clamping jaw and the second clamping jaw in a sliding mode, the upper end and the lower end of each clamping jaw assembly are provided with groove bodies, the convex blocks can slide into the groove bodies to enable the clamping ends to be opened, and the convex blocks can slide out of the groove bodies to enable the clamping ends to be closed.
An annular groove is formed in the side face of the rear sleeve, and a locking ring is slidably sleeved on the annular groove; the side surface of the locking ring is provided with a hook, and the support rod is provided with a hanging piece corresponding to the hook, so that the locking ring can be hung on the hanging piece through the hook after transversely sliding towards the direction far away from the clamping end.
Further, still including locating the horizontal pole of bracing piece terminal surface, the elastic component sets up to the spring, the spring housing is established on the horizontal pole, the one end and the bracing piece terminal surface of spring are contradicted, and the other end is contradicted with the depression bar.
Furthermore, the needle head fixing assembly comprises a first needle head sleeve and a clamping part, the first needle head sleeve is used for being sleeved on the needle head of the ablation needle, the clamping part is arranged on the side face of the first needle head sleeve, the opening end of the first needle head sleeve is in threaded connection with a fixing knob used for tightly abutting against the tail end of the needle head of the ablation needle, and a first through hole used for penetrating through the needle tube of the ablation needle is formed in the fixing knob; clamping grooves clamped with the clamping ends are formed in the two sides of the clamping portion.
Further, the needle head fixing assembly comprises a second needle head sleeve and a clamping part arranged on the side face of the second needle head sleeve, a placing groove used for placing a biopsy needle head and a through hole II used for penetrating through a biopsy needle tube are arranged in the second needle head sleeve, the placing groove is communicated with the through hole II, a locking screw is connected with the side face of the second needle head sleeve in a threaded mode, and the locking screw extends into the placing groove and is used for abutting against the biopsy needle tube; clamping grooves clamped with the clamping ends are formed in the two sides of the clamping portion.
Furthermore, the jack catch installation department is provided with the locating hole towards the terminal surface of jack catch subassembly, the clamping part is provided with the location arch that matches with the locating hole towards the terminal surface of jack catch installation department.
In the embodiment of the application, adopt the mode that the depression bar slides and drives the jack catch subassembly and open and close, through set up the jack catch installation department on the bracing piece, set up mounting groove and the slide opening of installation jack catch subassembly in the jack catch installation department, still set up slider and the elastic component that can follow lateral sliding on the bracing piece, vertical setting depression bar in the slide opening, the depression bar extends into the drive end of jack catch subassembly and promotes the depression bar through the elastic component and close the exposed core with the tight fixed subassembly of clamp needle, drive the depression bar through the slider and remove and open the exposed core with taking off the fixed subassembly of syringe needle, thereby realized dismantling the technological effect of installation to the fixed subassembly of syringe needle fast, and then solved the device of the fixed pjncture needle among the relevant art and easily changed the fixed subassembly of syringe needle, lead to have inconvenient problem.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, serve to provide a further understanding of the application and to enable other features, objects, and advantages of the application to be more apparent. The drawings and their description illustrate the embodiments of the invention and do not limit it. In the drawings:
FIG. 1 is a schematic cross-sectional structural view according to an embodiment of the present application;
FIG. 2 is a schematic top view of the structure of FIG. 1;
FIG. 3 is a cross-sectional structural schematic view of another embodiment according to the present application;
FIG. 4 is a schematic top view of the structure of FIG. 3;
FIG. 5 is a schematic illustration of an explosive structure according to an embodiment of the present application;
FIG. 6 is a schematic diagram of a front view structure according to an embodiment of the present application;
the novel medical needle comprises a supporting rod 1, a cross rod 2, an elastic part 3, a pressure rod 4, a jaw component 5, a first jaw 51, a second jaw 52, a clamping end 53, a driving end 54, a needle tube 6 of an ablation needle, a clamping part 7, a fixing knob 8, a needle head 9 of the ablation needle, a sleeve 10 of the first needle head, a pin shaft 11, a sleeve 12 of the front part, a gap 13, a sleeve 14 of the rear part, a locking ring 15, a snap ring 16, a jaw mounting part 17, a clamping block 18, a needle head of a biopsy needle 19, a placing groove 20, a sleeve 21 of the second needle head, a locking screw 22, a hanging part 23, a sliding hole 24, a needle head fixing component 25, a hook 26.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all 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 application.
It should be noted that the terms "first," "second," and the like in the description and claims of this application 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 should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used.
In this application, the terms "upper", "lower", "inside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used 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 meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.
Furthermore, the terms "disposed," "provided," "connected," "secured," and the like are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill 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 in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1 to 6, the present application provides an apparatus for fixing a puncture needle, including: the support rod comprises a support rod 1, wherein a clamping jaw mounting part 17 is arranged at one end of the support rod 1, and a mounting groove is formed in the clamping jaw mounting part 17; the jaw assembly 5 is arranged in the mounting groove, the jaw assembly 5 comprises a clamping end 53 and a driving end 54, and the clamping end 53 extends out of the jaw mounting part 17; a slide hole 24 provided in the jaw mounting portion 17; the sliding part is arranged on the support rod 1 and can slide along the transverse direction; the pressing rod 4 is vertically arranged in the sliding hole 24, one end of the pressing rod 4 extends into the driving end 54, the other end of the pressing rod 4 is connected with the sliding part, and the pressing rod 4 can be driven by the sliding part to slide in the sliding hole 24 and the driving end 54 along the transverse direction so as to open or close the clamping end 53; the elastic piece 3 is arranged on the support rod 1 and used for driving the pressure rod 4 to transversely slide until the clamping end 53 is closed; the needle fixing component 25 is clamped at the clamping end 53 of the jaw component 5.
In this embodiment, one end of the support rod 1 can be installed at the end of a mechanical arm, the support rod 1 is driven by the mechanical arm to move, the support rod 1 is bent and arranged downwards so as to avoid the belly of a patient when in use, the jaw mounting portion 17 is transversely arranged on the end surface of the support rod 1 and can be integrally formed with the support rod 1, a mounting groove is arranged on the jaw mounting portion 17 and is transversely arranged, the jaw assembly 5 is transversely arranged in the mounting groove, the mounting groove is provided with a transversely arranged through groove, the jaw assembly 5 is arranged in the through groove, the clamping end 53 of the jaw assembly 5 extends out of the left end of the mounting groove, namely out of the left end of the jaw mounting portion 17, the driving end 54 of the jaw assembly 5 is positioned in the mounting groove, the driving end 54 controls the clamping end 53 to open or close, the jaw mounting portion 17 is provided with a sliding hole, the pressing rod 4 is vertically installed in the sliding hole 24 and can slide in the sliding hole 24 along the transverse direction, the lower end of the pressing rod 4 passes through the sliding hole 24 and extends to the driving end 54 of the jaw assembly 5, and the pressing rod 4 can force the driving end 54 to open or close in the process of sliding in the sliding hole 24 and the driving end 54, so that the opening or closing of the clamping end 53 can be controlled, the structure of the driving end 54 is not limited, as long as the above functions can be realized, the supporting rod 1 is provided with the elastic part 3, the elastic part 3 can adopt a structure with elastic force such as a spring or a tension spring, etc., the elastic part 3 can be connected with the pressing rod 4, the pressing rod 4 controls the driving end 54 to close under the action of the elastic part 3, so that the clamping end 53 stably clamps the needle fixing assembly 25, because the sliding part is arranged on the supporting rod 1 in a sliding manner, namely, the sliding part can slide in the transverse direction, the sliding pressure rod 4 can be slid through the sliding part, so that the clamping end 53 of the jaw assembly 5 can be controlled to be opened and closed, the needle fixing assembly 25 can be in a structure matched with the clamping end 53 in a clamping mode, limitation is not required to be made here, and all parts are made of low-artifact materials, such as PEEK, Nylon, POM and the like.
As shown in fig. 1 to 6, the jaw assembly 5 includes a first jaw 51 and a second jaw 52 hinged to each other through a pin 11, a driving end 54 and a clamping end 53 are respectively formed at two ends of the first jaw 51 and the second jaw 52, one end of the driving end 54 close to the hinged point is in a bell-mouth shape, the distance is gradually reduced, and the other end of the driving end 54 can be opened and closed and is rounded.
Specifically, it should be noted that, the middle portions of the first jaw 51 and the second jaw 52 are overlapped and hinged through the pin 11, so that the two ends of the first jaw 51 and the second jaw 52 can be opened and closed, the left ends of the first jaw 51 and the second jaw 52 together form a clamping end 53, the right ends together form a driving end 54, one end of the clamping end 53 close to the pin 11 is flared and the distance between the two ends is gradually reduced, when the pressing rod 4 moves in the driving end 54 toward the direction of the pin 11, the portions of the first jaw 51 and the second jaw 52 located at the driving end 54 are forced to close, so as to control the portions of the first jaw 51 and the second jaw 52 located at the clamping end 53 to close, so as to achieve the clamping function, the pressing rod 4 can stably close the driving end 54 under the influence of the elastic force of the elastic member 3, so as to clamp the needle fixing assembly 25, the right ends of the first jaw 51 and the second jaw 52 are overlapped so that the driving end 54 is surrounded, the overlapping portions of the first jaw 51 and the second jaw 52 are rounded to force the overlapping portions apart when the plunger 4 is moved toward the right end at the driving end 54, thereby controlling the grip portion 7 to separate and enabling the needle fixing assembly 25 to be removed.
As shown in fig. 1 to 6, the sliding holes 24 are arranged in two and distributed on two sides of the jaw mounting portion 17, the pressing rod 4 sequentially penetrates through the upper sliding hole 24, the driving end 54 and the lower sliding hole 24, the sliding part is arranged as a sleeve component, the sleeve component is slidably sleeved on the supporting rod 1, the upper end and the lower end of the pressing rod 4 are both connected with the sleeve component, the upper end and the lower end of the pressing rod 4 both extend out of the corresponding sliding hole 24 and are connected with the sleeve component, thereby the pressing rod 4 is driven to slide through the sliding sleeve component, the stress of the pressing rod 4 is balanced, the use is convenient, the sliding hole 24 is arranged as a waist-shaped hole, the pressing rod 4 is slidably arranged in the.
As shown in fig. 1 to 6, the sleeve assembly includes a front sleeve 12 and a rear sleeve 14, one end of the rear sleeve 14 is sleeved on the support rod 1, the other end of the rear sleeve is in threaded connection with the front sleeve 12, one end of the front sleeve 12, which is provided with a thread, is provided with a notch 13 in sliding connection with the pressure lever 4, the upper end and the lower end of the pressure lever 4 are both extended with the notch 13, and the jaw mounting portion 17 is located in a cavity formed by the front sleeve 12 and the rear sleeve 14 together.
Specifically, it should be noted that the front sleeve 12 and the rear sleeve 14 are fixed by threaded connection, the rear sleeve 14 is sleeved on the support rod 1, so that the rear sleeve 14 and the front sleeve 12 can slide on the support rod 1 in the transverse direction as a whole, the front sleeve 12 is provided with a notch 13, the notch 13 is located at the upper end and the lower end of the front sleeve 12 and distributed in the radial direction, the notch 13 extends from the upper end and the lower end of the press rod 4, and after the front sleeve 12 and the rear sleeve 14 are fixed by threads, the press rod 4 is fixed in the notch 13, so that the press rod 4 is driven to move.
As shown in fig. 1 to 6, two protrusions 28 are disposed inside the front sleeve 12, the protrusions 28 are slidably connected to the side surfaces of the first jaw 51 and the second jaw 52, the upper end and the lower end of the jaw assembly 5 are provided with grooves 29, the protrusions 28 can slide into the grooves 29 to open the clamping ends 53, and the protrusions 28 can slide out of the grooves 29 to close the clamping ends 53.
Specifically, it should be noted that two protrusions 28 are disposed on the inner side of the front sleeve 12, the protrusions 28 are respectively connected with the side surfaces of the first jaw 51 and the second jaw 52 in a sliding manner, one end of the protrusion 28 facing the needle fixing assembly 25 is set as a first inclined surface, the portions of the first jaw 51 and the second jaw 52 close to the hinge point are set as second inclined surfaces, the second inclined surfaces of the first jaw 51 and the second jaw 52 together form a horn-shaped groove 29, when the front sleeve 12 slides, the two protrusions 28 on the inner side slide on the side surfaces of the first jaw 51 and the second jaw 52, when the front sleeve 12 slides towards the left end, the protrusions 28 slide from the horizontal surfaces of the first jaw 51 and the second jaw 52 to the second inclined surfaces, and at the same time, the pressing rod 4 slides towards the left end to open the first jaw 51 and the second jaw 52, and at this time, the protrusions 28 are located in the groove 29; when the front sleeve 12 is slid towards the right, the projections 28 press the second inclined surfaces of the first and second jaws 51, 52 with the first inclined surfaces to gradually close the clamping ends 53, and when the projections 28 are completely disengaged from the slots 29, the clamping ends 53 are completely closed, and the projections 28 are located at the level of the first and second jaws 51, 52, so that the clamping force of the clamping ends 53 of the jaw assembly 5 can be maintained.
As shown in fig. 1 to 6, an annular groove is formed in the side surface of the rear sleeve 14, and a locking ring 15 is slidably sleeved on the annular groove; the side of the locking ring 15 is provided with a hook 26, the support rod 1 is provided with a hanging part 23 corresponding to the hook 26, so that the locking ring 15 can be hung on the hanging part 23 through the hook 26 after transversely sliding towards the direction far away from the clamping end 53, the sleeve assembly further comprises a snap ring 16 in threaded connection with one end of the rear sleeve 14 far away from the front sleeve 12, the rear sleeve 14 is provided with an annular step part, and an annular groove is formed between the snap ring 16 and the step part.
Specifically, it should be noted that the locking ring 15 is sleeved in the annular groove and can rotate circumferentially, the annular groove is designed to prevent the locking ring 15 from being separated from the rear sleeve 14, the clamping end 53 of the jaw assembly 5 can be opened after the sleeve assembly slides towards the right end, the hook 26 on the locking ring 15 moves to the position of the hanging piece 23, then the locking ring 15 is rotated to hang the hook 26 on the hanging piece 23, the purpose of keeping the clamping end 53 of the jaw assembly 5 open is achieved, the openings of the hook 26 and the hanging piece 23 are all formed along the circumferential direction of the locking ring 15 and are arranged oppositely, and therefore the hook 26 is clamped into the hanging piece 23 after the locking ring 15 is rotated.
As shown in fig. 1 to 6, the device further comprises a cross rod 2 disposed on the end surface of the support rod 1, the elastic member 3 is a spring, the spring is sleeved on the cross rod 2, one end of the spring is abutted against the end surface of the support rod 1, and the other end of the spring is abutted against the press rod 4.
Specifically, it should be noted that, the cross rod 2 is arranged on the end face of the support rod 1, the end face is further provided with the jaw mounting portion 17, the cross rod 2 can be arranged to be two and respectively located on the upper side and the lower side of the jaw mounting portion 17, and the spring is sleeved on the cross rod 2, so that the clamping end 53 is opened and the spring is compressed in the process that the pressing rod 4 moves towards the right end, after the pressing rod 4 is loosened, the pressing rod 4 moves towards the left end under the action of the spring to close the clamping portion 7, and the use is convenient.
As shown in fig. 1 to 6, the needle fixing assembly 25 includes a first needle sleeve 10 for being sleeved on the ablation needle 9 and a clamping portion 7 arranged on a side surface of the first needle sleeve 10, an opening end of the first needle sleeve 10 is in threaded connection with a fixing knob 8 for abutting against a tail end of the ablation needle 9, and the fixing knob 8 is provided with a first through hole for passing through the ablation needle tube 6; clamping grooves 27 clamped with the clamping ends 53 are formed in two sides of the clamping portion 7.
Specifically, it should be noted that, an ablation needle 9 is installed into the first needle sleeve 10 from an opening end of the first needle sleeve 10, an upper end of the ablation needle 9 abuts against an upper portion of the first needle sleeve 10, a fixing knob 8 is sleeved on the ablation needle tube 6 through a through hole, the fixing knob 8 and the first needle sleeve 10 are connected to one end of the ablation needle 9, on which the ablation needle tube 6 is installed, in a threaded manner, and abut against each other, so as to fix the ablation needle, an inner contour of the fixing knob 8 is set to be a circular truncated cone shape matching with an outer contour of a tail end of the ablation needle tube 9, in the related art, the ablation needle is fixed by fixing the ablation needle tube 6, in the embodiment, the ablation needle is fixed by fixing the ablation needle tube 9, and compared with fixing methods in related arts, the fixing method adopted in the embodiment can better protect the ablation needle tube 6, and this kind of fixed mode can not occupy the needle tubing length, and what can puncture is darker, avoids melting needle 6 to receive the pressure damage, and syringe needle fixed subassembly 25 passes through clamping part 7 and is held by the exposed core 53 of chuck jaw subassembly 5, and draw-in groove 27 is seted up to the both sides of clamping part 7, and fixture block 18 is seted up to the relative one side of first jack catch 51 and second jack catch 52, can be with the stable fixed of clamping part 7 after first jack catch 51 and second jack catch 52 are closed.
As shown in fig. 1 to 6, the needle fixing assembly 25 includes a second needle sleeve 21 and a holding portion 7 disposed at a side surface of the second needle sleeve 21, a placing groove 20 for placing the biopsy needle 19 and a second through hole for passing through the biopsy needle tube are disposed in the second needle sleeve 21, the placing groove 20 is communicated with the second through hole, a locking screw 22 is threadedly connected to a side surface of the second needle sleeve 21, and the locking screw 22 extends into the placing groove 20 and is used for abutting against the biopsy needle tube; clamping grooves 27 clamped with the clamping ends 53 are formed in two sides of the clamping portion 7.
Specifically, it should be noted that, during installation, the biopsy needle tube is inserted into the placement groove 20 and the through hole two, the biopsy needle 19 is located in the placement groove 20, and then the locking screw 22 is screwed in to fix the biopsy needle in the placement groove 20, where two bolts are provided and respectively located on two sides of the placement groove 20, and this embodiment also adopts the fixing of the biopsy needle 19 portion, thereby avoiding damage to the biopsy needle tube.
As shown in fig. 1 to 6, the end surface of the jaw mounting portion 17 facing the jaw assembly 5 is provided with a positioning hole, the end surface of the clamping portion 7 facing the jaw mounting portion 17 is provided with a positioning protrusion matched with the positioning hole, the needle fixing assembly 25 is preliminarily positioned by fitting the positioning hole and the positioning protrusion during installation, and the clamping block 18 of the clamping end 53 is conveniently clamped into the clamping groove 27 of the clamping portion 7.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. An apparatus for attaching a puncture needle, comprising:
the clamping jaw mounting part is arranged at one end of the supporting rod, and a mounting groove is formed in the clamping jaw mounting part;
the clamping jaw assembly is arranged in the mounting groove and comprises a clamping end and a driving end, and the clamping end extends out of a clamping jaw mounting part;
the sliding hole is arranged on the clamping jaw mounting part;
the sliding part is arranged on the supporting rod and can slide along the transverse direction;
the pressing rod is vertically arranged in the sliding hole, one end of the pressing rod extends into the driving end, the other end of the pressing rod is connected with the sliding part, and the pressing rod can be driven by the sliding part to slide in the sliding hole and the driving end along the transverse direction so as to open or close the clamping end;
the elastic piece is arranged on the supporting rod and used for driving the pressing rod to transversely slide until the clamping end is closed;
the needle head fixing assembly is clamped at the clamping end of the jaw assembly; the jaw assembly comprises a first jaw and a second jaw which are hinged through a pin shaft, and the driving end and the clamping end are formed at two ends of the first jaw and the second jaw respectively.
2. The needle holder of claim 1, wherein the end of the driving end near the hinge point is flared and gradually reduced in pitch, and the other end is openable and closable and rounded.
3. The apparatus of any one of claims 1 to 2, wherein the sliding holes are provided in two and distributed on both sides of the jaw mounting portion, and the pressing rod penetrates through the upper sliding hole, the driving end and the lower sliding hole in sequence.
4. The needle attachment device of claim 2, wherein the slider is configured as a sleeve assembly slidably received over the support shaft, and wherein the upper and lower ends of the plunger are connected to the sleeve assembly.
5. The device for fixing the puncture needle according to claim 4, wherein the sleeve assembly comprises a front sleeve and a rear sleeve, one end of the rear sleeve is sleeved on the support rod, the other end of the rear sleeve is in threaded connection with the front sleeve, the threaded end of the front sleeve is provided with a notch in sliding connection with the compression rod, the upper end and the lower end of the compression rod are respectively extended out of the notch, and the claw mounting part is located in a cavity formed by the front sleeve and the rear sleeve together.
6. The device for fixing the puncture needle according to claim 5, wherein two convex blocks are arranged on the inner side of the front sleeve, the convex blocks are connected with the side surfaces of the first clamping jaw and the second clamping jaw in a sliding manner, groove bodies are arranged at the upper end and the lower end of the clamping jaw assembly, the convex blocks can slide into the groove bodies to open the clamping ends, and the convex blocks can slide out of the groove bodies to close the clamping ends.
7. The needle holder of claim 5, wherein the rear hub defines an annular groove in a side surface thereof, the annular groove being slidably received by a locking ring;
the side surface of the locking ring is provided with a hook, and the support rod is provided with a hanging piece corresponding to the hook, so that the locking ring can be hung on the hanging piece through the hook after transversely sliding towards the direction far away from the clamping end.
8. The apparatus of claim 1, further comprising a cross bar disposed on an end surface of the support rod, wherein the elastic member is a spring, the spring is sleeved on the cross bar, one end of the spring abuts against the end surface of the support rod, and the other end of the spring abuts against the compression bar.
9. The device for fixing the puncture needle according to claim 1, wherein the needle head fixing assembly comprises a first needle head sleeve for being sleeved on the needle head of the ablation needle and a clamping part arranged on the side surface of the first needle head sleeve, the open end of the first needle head sleeve is in threaded connection with a fixing knob for abutting against the tail end of the needle head of the ablation needle, and the fixing knob is provided with a first through hole for penetrating through the needle head of the ablation needle;
clamping grooves clamped with the clamping ends are formed in the two sides of the clamping portion.
10. The apparatus of claim 1, wherein the needle mounting assembly includes a second needle hub having a second slot for receiving the needle of the biopsy needle and a second through hole for passing the needle of the biopsy needle therethrough, and a clamping portion disposed on a side of the second needle hub, the second needle hub communicating with the second through hole, the side of the second needle hub being threadedly coupled with a locking screw, the locking screw extending into the second slot and being configured to abut against the needle of the biopsy needle;
clamping grooves clamped with the clamping ends are formed in the two sides of the clamping portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010352843.3A CN111436976B (en) | 2020-04-28 | 2020-04-28 | Device for fixing puncture needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010352843.3A CN111436976B (en) | 2020-04-28 | 2020-04-28 | Device for fixing puncture needle |
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| Publication Number | Publication Date |
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| CN111436976A CN111436976A (en) | 2020-07-24 |
| CN111436976B true CN111436976B (en) | 2021-06-22 |
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| CN202010352843.3A Active CN111436976B (en) | 2020-04-28 | 2020-04-28 | Device for fixing puncture needle |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112568980A (en) * | 2020-12-15 | 2021-03-30 | 航天科工智能机器人有限责任公司 | Clamping device suitable for puncture needles of different models and specifications |
| CN114533145B (en) * | 2022-03-02 | 2023-07-14 | 浙江伽奈维医疗科技有限公司 | Biopsy gun |
| CN114469286B (en) * | 2022-04-02 | 2022-07-01 | 真健康（北京）医疗科技有限公司 | Miniaturized puncture robot |
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| JP2015002916A (en) * | 2013-06-21 | 2015-01-08 | 株式会社タスク | Biopsy device and charge device used for the same |
| CN109204170A (en) * | 2018-09-18 | 2019-01-15 | 上汽大众汽车有限公司 | A kind of clamping device and storage box |
| CN209172446U (en) * | 2017-12-29 | 2019-07-30 | 上海联影医疗科技有限公司 | Needle localization system and its hold needle device |
| CN209319800U (en) * | 2018-11-28 | 2019-08-30 | 中国平煤神马能源化工集团有限责任公司 | Multi-function robot gripper |
| CN209848159U (en) * | 2018-03-22 | 2019-12-27 | 河北海思开尔医院管理股份有限公司 | Puncture needle holding device |
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2020
- 2020-04-28 CN CN202010352843.3A patent/CN111436976B/en active Active
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|---|---|---|---|---|
| JP2015002916A (en) * | 2013-06-21 | 2015-01-08 | 株式会社タスク | Biopsy device and charge device used for the same |
| CN209172446U (en) * | 2017-12-29 | 2019-07-30 | 上海联影医疗科技有限公司 | Needle localization system and its hold needle device |
| CN209848159U (en) * | 2018-03-22 | 2019-12-27 | 河北海思开尔医院管理股份有限公司 | Puncture needle holding device |
| CN109204170A (en) * | 2018-09-18 | 2019-01-15 | 上汽大众汽车有限公司 | A kind of clamping device and storage box |
| CN209319800U (en) * | 2018-11-28 | 2019-08-30 | 中国平煤神马能源化工集团有限责任公司 | Multi-function robot gripper |
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