Disclosure of Invention
The invention aims to provide a renal biopsy gun capable of improving puncture accuracy and convenience and avoiding suction and a use method thereof, so as to solve the problems in the background technology.
In order to achieve the aim, the invention provides the technical scheme that the renal biopsy gun capable of avoiding suction comprises a first shell, a second shell, a biopsy needle, a sleeve, a first ejection assembly, a second ejection assembly, an adjusting assembly and a fixing assembly, wherein semicircular grooves are symmetrically formed in side walls of one end of the first shell and one end of the second shell, and guide grooves are formed in the first shell and the second shell; a cutting groove for sampling kidney tissues is formed in the side wall of one end of the puncture biopsy needle; the sleeve is sleeved on the outer side of the biopsy needle, an arc-shaped cutter is fixedly arranged on the inner wall of the sleeve and positioned on one side of the end part of the cutting groove, one end of the sleeve penetrates through the semicircular groove and extends towards the outer sides of the first shell and the second shell, connecting rods are fixedly sleeved on one end of the biopsy needle and the outer side of one end of the sleeve, guide blocks which are fixedly arranged on the two sides of the connecting rods in a sliding connection mode are fixedly arranged on the guide grooves, a first ejection assembly is arranged on one side of the end part of the biopsy needle, ejection is triggered to pierce a kidney part of the biopsy needle, a second ejection assembly is arranged on one side of the end part of the sleeve, the first ejection assembly is used for triggering ejection of the biopsy needle to the end part of the biopsy needle, tissue covering and shielding of the cutting groove is formed by the second ejection assembly, an adjusting assembly is arranged in the first shell and fixedly covers tissue covering and shielding tissue sampled in the cutting groove, the first shell, the first ejection assembly is fixedly arranged on one side of the biopsy needle and the sleeve, the second ejection assembly is fixedly arranged on the first shell, and the first ejection assembly is additionally arranged on one side of the biopsy shell, and the second ejection assembly is fixedly arranged on the first shell The second casing, puncture biopsy needle, the sleeve pipe, first ejection subassembly, second ejection subassembly, adjusting part and fixed subassembly all lead to the fact the striking spacing between first, second pushing block and the slider in proper order when can realizing the puncture, avoid puncture biopsy needle and sleeve pipe to launch the length overlength of department and lead to the fact the danger of penetrating, reduce puncture hemorrhagic danger, can adjust the distance between control puncture biopsy needle and the sleeve pipe through adjusting the distance between slider and first, second pushing block, can effectually improve the security of puncture sample, the operation degree of difficulty of medical personnel has been reduced, the convenience and the accuracy of operation have been improved medical personnel when carrying out the kidney biopsy puncture to the patient.
Preferably, the adjusting component comprises a first chute arranged on the first shell, a second chute is arranged above one end of the first chute in parallel, sliding blocks are arranged in the first chute and the second chute in a sliding mode, one end of each sliding block penetrates through the first chute and the second chute to extend to the outer side of the first shell and fixedly connected with a pointer, one end of each sliding block is far away from the pointer and extends to the inner side of the first shell and is fixedly connected with two ends of a U-shaped rod, a mounting groove is formed in each U-shaped rod, a toothed plate is fixedly arranged on one side of the inner side of each mounting groove, a gear is meshed with one side of each toothed plate, a rotating rod is fixedly arranged in the middle of each gear, one end of each rotating rod penetrates through the first shell and extends outwards and is fixedly connected with a handle, a limiting block is fixedly arranged at one end of each rotating rod, an inner gear ring is fixedly arranged in the middle of the inner wall of each U-shaped block, one end of each rotating rod penetrates through the U-shaped block and extends to the other to the two ends of the U-shaped blocks, and is fixedly connected with the other through the U-shaped blocks, and the two ends of the U-shaped blocks can penetrate through the U-shaped blocks and extend to the two sides of the U-shaped blocks, and the two end of each limiting blocks can penetrate through the first shell and the U-shaped blocks are fixedly extend to the U-shaped blocks and the U-shaped chute to extend to the U-shaped chute.
Preferably, the first ejection assembly comprises a first spring, one end of the first spring is fixedly connected with the inner wall of the first shell, and the other end of the first spring is contacted with one end of the puncture biopsy needle;
The first ejection assembly further comprises a first pushing block which is arranged inside the first sliding groove in a sliding mode, a first connecting block is fixedly arranged on one side of the first pushing block, a first clamping groove which is matched with the connecting rod is formed in one side of the first connecting block, arc-shaped ratchets are fixedly arranged on one side of the upper portion of the first pushing block, stop teeth are meshed on one side of the arc-shaped ratchets, one end of each stop tooth is fixedly connected with one end of each fixing block, the fixing block is far away from one end of each stop tooth, a pushing handle is fixedly arranged on one side of each stop tooth and is located on the first shell, an adjusting groove is formed in the first shell, the fixing block is arranged in the adjusting groove in a sliding mode, one end of each fixing block extends to the outer side of the adjusting groove and is fixedly connected with the pushing handle, elastic strips are fixedly arranged on two sides of the end of each fixing block, clamping blocks are fixedly arranged on one side of each elastic strip, guide rails are fixedly arranged on the inner walls of the first shell, and the inner walls of the guide rails are separated from one end side of each clamping block and are provided with clamping blocks which the corresponding ejection assembly which is matched with the corresponding ejection needle.
Preferably, the second elastic component comprises a second spring sleeved on the sleeve, and the second spring is arranged in the first shell;
The second elastic component further comprises a second pushing block which is arranged in the second sliding groove in a sliding mode, a second connecting block is fixedly arranged on one side of the second pushing block, a second clamping groove which is matched with the connecting rod is formed in one side of the second connecting block, a fixed clamping hook is fixedly arranged on one side of the upper portion of the second pushing block, a hook plate which is matched with the fixed clamping hook is arranged on one side of the upper portion of the fixed clamping hook, a hook tip is arranged at one end of the hook plate, a hanging bracket is arranged on one side of the hook plate, the hanging bracket is fixedly connected with the inner wall of the first shell, two sides of the hook plate are rotatably connected with the hanging bracket through a shaft rod, an elastic piece is arranged below one end of the hook tip, two sides of the elastic piece are fixedly connected with two sides of the hanging bracket, one side of the hook plate is provided with a guide cylinder which is fixedly arranged on the hanging bracket, a constraint cylinder is arranged on one end of the guide cylinder in a communicating mode, one end of the guide cylinder is provided with a push rod which penetrates through the constraint cylinder and is fixedly connected with the hook plate, the hanging rod is fixedly connected with the inner wall of the first shell, two sides of the hook plate are rotatably connected with the guide cylinder, two sides of the guide cylinder are rotatably arranged on the guide cylinder, the two sides of the guide cylinder are fixedly connected with the ejector rod, and the ejector rod are arranged on one side of the guide cylinder in a penetrating mode, and the ejector rod is far away from the opposite to the first shell, and the ejector rod is fixedly connected with the ejector rod through the ejector rod.
Preferably, the fixing component comprises a through hole formed in the second shell, a screw barrel aligned with the through hole is fixedly arranged on the inner wall of the first shell, a locking screw matched with the screw barrel is inserted in the through hole, and the fixing component can be used for mounting and dismounting the first shell and the second shell.
Preferably, the first chute with one side of second chute just is located the lateral wall of first casing is all fixed and is equipped with the scale, conveniently observes the adjustment distance between slider and first, the second pushing piece.
Preferably, the first pushing block and one side of the second pushing block are fixedly provided with anti-skid push handles, so that medical staff can push the first pushing block and the second pushing block conveniently.
Preferably, the elastic strip is made of elastic materials, and the convenience of sliding of the elastic strip in the guide rail is tested.
Preferably, limit grooves are formed in two sides of the inner wall of the U-shaped block, limit strips are arranged in the limit grooves in a sliding mode, one side of each limit strip is fixedly connected with the side wall of the U-shaped rod, and sliding stability of the U-shaped rod is improved.
The invention also provides a using method of the renal biopsy gun capable of avoiding suction, which comprises the following specific steps:
S1, firstly, disassembling the first shell and the second shell through the fixing component, then inserting the puncture biopsy needle into the sleeve, sleeving and placing the puncture biopsy needle and the sleeve, then respectively clamping the connecting rods at the end parts of the puncture biopsy needle and the sleeve into the first clamping groove at one side of the relative first connecting block and the second clamping groove at one side of the second connecting block, installing the puncture biopsy needle and the sleeve into the first shell, finally clamping the first shell and the second shell and fixing the puncture biopsy needle and the sleeve through the fixing component, and outwards extending one end of the installed sleeve through the semicircular grooves formed at the end parts of the first shell and the second shell, so that the puncture biopsy needle and the end parts of the sleeve are respectively connected with the first ejection component and the second ejection component;
S2, after the puncture biopsy needle and the sleeve are connected with the first ejection assembly and the second ejection assembly respectively, when a patient needs to be subjected to puncture biopsy sampling, the first pushing block is pushed first, so that the end part of the puncture biopsy needle is used for storing energy by extruding the first spring, when the first pushing block moves to one side of the stop tooth, the arc-shaped ratchet is used for extruding the stop tooth to deform and pass over the stop tooth, and then the pushing of the first pushing block can be stopped, so that the upward energy storage of the puncture biopsy needle is realized;
S3, pushing a second pushing block at the moment to drive the sleeve to move after the puncture biopsy needle is charged, pulling a second spring at the outer side of the sleeve to move, enabling the second spring to lengthen for charging, and pushing the hook plate to descend by the elastic sheet when the second pushing block drives the fixed hook to pass over the hook tip part at one end of the hook plate, enabling the hook tip part of the hook plate to limit and stop the fixed hook, stopping pushing the second pushing block at the moment, and charging the sleeve;
S4, after the puncture biopsy needle and the sleeve are respectively charged, the puncture biopsy needle is contained in the sleeve, then the sleeve is punctured to a puncture part of a patient, and the puncture position of the sleeve is matched with a B ultrasonic device to observe the puncture position of the sleeve so as to carry out positioning adjustment on the puncture position of the sleeve;
S5, after the sleeve is punctured and positioned, the ejection distance of the puncture biopsy needle is adjusted according to the puncture length required by the puncture position, and during adjustment, the sliding blocks in the first sliding groove and the second sliding groove are adjusted through an adjusting component, so that the distance between the sliding blocks and the first pushing block and the distance between the sliding blocks and the second pushing block are adjusted, and the ejection distance between the puncture biopsy needle and the sleeve can be adjusted at the moment;
S6, after ejection distance adjustment is completed, pushing the pushing handle at the end part of the first shell at the moment, enabling the fixing block to drive the elastic strips at two lower sides to slide in the guide rail, enabling the clamping blocks on the side walls of the end parts of the elastic strips to move in the buckling grooves, enabling the fixing block to drive the stop teeth to move upwards, enabling the stop teeth to be separated from the arc-shaped ratchets, enabling the first ejection assembly to trigger ejection, enabling the first spring to release elastic potential energy to push the puncture biopsy needle to extend out, enabling one end of the end part of the puncture biopsy needle with the cutting grooves to enter tissues for tissue sampling;
s7, after the first ejection component triggers ejection, the second ejection component can be pushed by the impact rod to trigger ejection, so that the second spring releases elastic potential energy to push the sleeve to extend out and puncture and enter into the puncture tissue, at the moment, the arc-shaped cutter inside the sleeve can cut the tissue sampled in the cutting groove, so that the cut tissue stays in the cutting groove, the sleeve can cover and sleeve the puncture biopsy needle, and the safety of storing the tissue in the cutting groove after sampling is improved;
s8, after puncture sampling, the sleeve is pulled out of a puncture part of a patient, the second pushing block is pushed to move, the action is repeated to enable the sleeve to be in an upward energy storage state again, at the moment, a cutting groove at the end part of the puncture biopsy needle in the sleeve is exposed, then tissue sampled in the cutting groove is taken out, and at the moment, the process of sampling the puncture biopsy tissue can be completed.
Compared with the prior art, the invention has the beneficial effects that:
According to the invention, the existing kidney puncture biopsy gun is optimized, the first shell, the second shell, the puncture biopsy needle, the sleeve, the first ejection assembly, the second ejection assembly, the adjusting assembly and the fixing assembly are additionally arranged, so that collision limit between the first pushing block and the second pushing block and the sliding block can be realized during puncture, penetration suction caused by overlong length of the puncture biopsy needle and the sleeve ejection position is avoided, the risk of puncture bleeding is reduced, the distance between the puncture biopsy needle and the sleeve can be adjusted and controlled by adjusting the distance between the sliding block and the first pushing block and the second pushing block, the safety of puncture sampling can be effectively improved, the operation difficulty of medical staff is reduced, and the convenience and accuracy of operation of the medical staff during kidney biopsy puncture on patients are improved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a side view of the present invention;
FIG. 3 is a schematic view of the first and second ejection assemblies of the present invention mounted within a first housing;
FIG. 4 is a schematic view of the connection structure between the biopsy needle and the cannula according to the present invention;
FIG. 5 is a schematic illustration of the connection between the first ejection assembly and the needle of the present invention;
FIG. 6 is a schematic view of a first ejection assembly of the present invention;
FIG. 7 is a schematic illustration of the connection between the second ejection assembly and the sleeve of the present invention;
FIG. 8 is a schematic view of a second ejection assembly of the present invention;
FIG. 9 is a cross-sectional view of a guide cylinder and a restraining cylinder in accordance with the present invention;
FIG. 10 is a cross-sectional view of a sleeve according to the present invention;
FIG. 11 is a schematic view of the structure of the U-shaped rod of the present invention;
FIG. 12 is a schematic view of the separation between the toothed plate and the gear in the adjustment assembly of the present invention;
FIG. 13 is a schematic view showing the structure of the adjusting assembly installed inside the first housing according to the present invention;
FIG. 14 is an enlarged view of the portion A of FIG. 13 in accordance with the present invention;
fig. 15 is a schematic view showing an internal structure of the second housing in the present invention.
1, A first shell; 2, a second shell; 3, a semicircular groove; 4, guide slot, 5, puncture biopsy needle, 6, cutting slot, 7, cannula, 8, connecting rod, 9, guide block, 10, first slide slot, 11, second slide slot, 12, slide block, 13, pointer, 14, U-shaped rod, 15, mounting slot, 16, toothed plate, 17, gear, 18, rotating rod, 19, handle, 20, stopper, 21, U-shaped block, 22, inner gear ring, 23, return spring, 24, first spring, 25, restraint cylinder, 26, first push block, 27, first connecting block, 28, first clamping slot, 29, arc ratchet, 30, stop tooth, 31, fixed block, 32, push handle, 33, adjusting slot, 34, elastic strip, 35, clamping block, 36, guide rail, 37, buckle slot, 38, second spring, 39, second push block, 40, second connecting block, 41, second clamping slot, 42, fixing hook, 43, hook plate, 44, hanging bracket, 45, 46, 47, guide cylinder, 48, first clamping slot, 29, arc ratchet, 30, stop tooth, 31, fixed block, 32, push handle, 33, adjusting slot, 34, elastic strip, 35, clamping slot, 36, guide slot, 37, clip slot, 38, second spring, 39, second push slot, 40, second connecting slot, 41, second clamping slot, 42, fixed hook, 43, hook, 44, lifting frame, 45, 46, push slot, 46, 47, slide bar, clip, 48, slide bar, clip, 58, slide bar, screw rod, 55, screw rod, stop bar, etc.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Referring to fig. 1-15, the kidney puncture biopsy gun capable of avoiding empty suction in the drawing comprises a first shell 1, a second shell 2, a puncture biopsy needle 5, a sleeve 7, a first ejection assembly, a second ejection assembly, an adjusting assembly and a fixing assembly, wherein semicircular grooves 3 are symmetrically formed in one end side walls of the first shell 1 and the second shell 2, guide grooves 4 are formed in the first shell 1 and the second shell 2, a cutting groove 6 for sampling kidney tissues is formed in one end side wall of the puncture biopsy needle 5, the sleeve 7 is sleeved on the outer side of the puncture biopsy needle 5, an arc-shaped cutter 52 is fixedly arranged on the inner wall of the sleeve 7, the arc-shaped cutter 52 is located on one side of the end of the cutting groove 6, one end of the sleeve 7 penetrates through the semicircular grooves 3 and extends to the outer sides of the first shell 1 and the second shell 2, a connecting rod 8 is fixedly sleeved on one end of the puncture biopsy needle 5 and two sides of one end of the sleeve 7, guide blocks 9 which are fixedly arranged on the two sides of the guide grooves 4 in a sliding mode are respectively, the first shell 1 and the second shell 5 are installed on one side of the end of the puncture biopsy needle, an ejection assembly is installed on one side of the puncture biopsy needle 5, an ejection assembly is installed on one side of the sleeve 7, and the inner side of the sleeve 7 is fixed on the sleeve 7, and the sleeve 7 is installed on one side of the sleeve 7, and the sleeve 7 is fixed on one side of the sleeve 7, and the other side of the puncture biopsy assembly is installed on the sleeve 1, and the sleeve 7, and the sleeve 1 is positioned on the other side, and the side of the side 1.
Referring to fig. 2,3 and 11-13, the adjusting component in the drawing includes a first chute 10 provided on a first housing 1, a second chute 11 is provided above one end of the first chute 10 in parallel, sliding blocks 12 are provided inside the first chute 10 and the second chute 11, one end of the sliding blocks 12 passes through the first chute 10 and the second chute 11 to extend to the outside of the first housing 1 and fixedly connect with a pointer 13, one end of the sliding blocks 12 far away from the pointer 13 extends to the inside of the first housing 1 and fixedly connect with two ends of a U-shaped rod 14, a mounting groove 15 is provided on the U-shaped rod 14, a toothed plate 16 is fixedly provided on one side of the inner side of the mounting groove 15, a gear 17 is meshed with one side of the toothed plate 16, a rotating rod 18 is fixedly provided in the middle of the gear 17, one end of the rotating rod 18 penetrates through the first housing 1 and extends outwards and is fixedly connected with a handle 19, a limit block 20 is fixedly provided at one end of the rotating rod 18 far away from the handle 19, a ring 22 meshed with the gear 17 is fixedly provided in the middle of the inner wall of the first housing 1, one end of the U-shaped block 21 extends to the other side of the rotating rod 21 and is fixedly connected with a limit block 20, and a reset spring sleeve 23 is fixedly connected with the limit block 20.
Referring to fig. 2-6, the first ejection assembly is shown to include a first spring 24, one end of the first spring 24 is fixedly connected to the inner wall of the first housing 1, and the other end of the first spring 24 is in contact with one end of the biopsy needle 5;
Referring to fig. 2-6, the first ejection assembly in the drawings further includes a first pushing block 26 slidably disposed in the first chute 10, a first connecting block 27 is fixedly disposed at one side of the first pushing block 26, a first clamping groove 28 matched with the connecting rod 8 is disposed at one side of the first connecting block 27, an arc-shaped ratchet 29 is fixedly disposed at one side above the first pushing block 26, a stop tooth 30 is engaged with one side of the arc-shaped ratchet 29, one end of the stop tooth 30 is fixedly connected with one end of the fixing block 31, far from the stop tooth 30, is fixedly disposed with a push handle 32, one side of the stop tooth 30 and located on the first housing 1, is provided with an adjusting groove 33, one end of the fixing block 31 is slidably disposed in the adjusting groove 33 and extends to the outer side of the adjusting groove 33 and is fixedly connected with the push handle 32, two sides of the end of the fixing block 31 are fixedly disposed with elastic strips 34, one side wall of the elastic strips 34, one end of the elastic strips 34, one side of the elastic strips 34 is fixedly disposed with a clamping block 35, one side of the elastic strips 34 is fixedly disposed on the inner wall of the first housing 1, the inner wall of the guide rail 36 is equidistantly disposed, one side of the elastic strips is separated from the clamping groove 37, and is disposed with the clamping groove 37 matched with the clamping block 35.
Referring to fig. 2-4 and 7-9, the second elastic component includes a second spring 38 sleeved on the sleeve 7, where the second spring 38 is disposed inside the first housing 1;
Referring to fig. 2-4 and 7-9, the second elastic component in the drawing further includes a second pushing block 39 slidably disposed in the second chute 11, a second connecting block 40 is fixedly disposed on one side of the second pushing block 39, a second clamping groove 41 matched with the connecting rod 8 is disposed on one side of the second connecting block 40, a fixed clamping hook 42 is fixedly disposed on one side above the second pushing block 39, a hook plate 43 matched with the fixed clamping hook 42 is disposed on one side above the fixed clamping hook 42, a hook tip is disposed at one end of the hook plate 43, a hanger 44 is disposed on one side of the hook plate 43, the hanger 44 is fixedly connected with an inner wall of the first housing 1, two sides of the hook plate 43 are rotatably connected with the hanger 44 through a shaft 45, an elastic piece 46 is disposed below one end of the hook plate 43 away from the hook tip, two sides of the elastic piece 46 are fixedly connected with two sides of the hanger 44, a guiding drum 47 is disposed on one side of the hook plate 43 away from the elastic piece 46, a restraining drum 25 is disposed on one side of the hanger 44, a restraining drum 47 is disposed inside the guiding drum 47 is slidably disposed, one end of the ejector drum 48 penetrates through the restraining drum 25 and extends outwards and is fixedly connected with a plate 49, a sliding drum 50 is disposed on one side of the inner side of the ejector drum 48 away from the restraining drum 48, and is disposed far away from the one side of the arc-shaped plate 48, and is disposed on the side of the ejector drum 50, which is disposed far away from the upper side of the ejector drum 50, and is disposed in contact with the ejector drum 50, and extends away from the ejector drum 50.
When the kidney puncture biopsy gun is used, the first shell and the second shell are firstly opened and separated through the fixing component, then the puncture biopsy needle 5 to be used is inserted into the sleeve 7, the insertion connection between the puncture biopsy needle 5 and the sleeve 7 is realized, the puncture biopsy needle 5 and the sleeve 7 after the sleeving connection are placed in the first shell 1, the connecting rods 8 at the end parts of the puncture biopsy needle 5 and the sleeve 7 are respectively inserted into the first clamping grooves 28 at the side of the first connecting block 27 and the second clamping grooves 41 at the side of the second connecting block 40 in the first ejection component and the second ejection component, at the moment, the connection between the puncture biopsy needle 5 and the sleeve 7 and the first ejection component and the second ejection component can be realized, and when the puncture biopsy needle 5 and the sleeve 7 are placed in the first shell 1, the guide blocks 9 at the side walls of the end parts of the puncture biopsy needle 5 and the sleeve 7 are slidably placed in the guide grooves 4 on the inner walls, and the sliding stability can be realized when the puncture biopsy needle 5 and the sleeve 7 are in the other state.
After the puncture biopsy needle 5 and the sleeve 7 are placed with the first ejection component and the second ejection component, the second shell 2 is clamped on one side of the first shell 1, the guide blocks 9 at the end parts of the puncture biopsy needle 5 and the sleeve 7 are slidably arranged in the guide grooves 4, the stability of the puncture biopsy needle 5 and the sleeve 7 in the first shell and the second shell is realized, the semicircular grooves 3 at the end parts of the first shell and the second shell are spliced into round holes, the sleeve 7 penetrates to extend to the outer sides of the first shell and the second shell, after the first shell and the second shell are clamped, the first shell and the second shell are fixedly connected through the fixing component, the first shell and the second shell can be fixedly installed, the convenience of installation and disassembly between the first shell and the second shell is improved, the installation, the disassembly and the replacement of the puncture biopsy needle 5 and the sleeve 7 are facilitated, and the maintenance of the first ejection component and the second ejection component inside the first shell and the second shell is facilitated.
After the puncture biopsy needle 5 and the sleeve 7 are placed in the first shell and the second shell, at the moment, a user pushes the first pushing block 26 in the first chute 10 firstly, the first pushing block 26 pushes to the side close to the stop tooth 30, the first pushing block 26 can synchronously drive the movement of the first connecting block 27 when being pushed, the arc-shaped ratchet 29 fixedly arranged on one side of the first connecting block 27 synchronously moves, when the arc-shaped ratchet 29 moves to the position of the stop tooth 30, the arc-shaped ratchet 29 can squeeze the stop tooth 30 to deform the stop tooth 30, when the arc-shaped ratchet 29 passes over the stop tooth 30, the stop tooth 30 is not squeezed to reset to generate noise, at the moment, the user can stop pushing the first pushing block 26 after hearing the noise, and at the moment, one end of the puncture biopsy needle 5 clamped in the first clamping groove 28 on one side of the first connecting block 27 stops moving after synchronously moving, the first spring 24 placed in the first shell 1 can be squeezed, so that the first spring 24 compresses elastic potential energy, and the puncture biopsy needle 5 can store the puncture biopsy needle 5 conveniently.
After the puncture biopsy needle 5 is subjected to upward feeding energy storage, the second pushing block 39 in the second chute 11 is pushed at the moment, one side, close to the hook plate 43, of the second pushing block 39 moves, the second pushing block 39 can drive the second connecting block 40 to synchronously move when sliding, the fixed clamping hook 42 fixedly connected with one side of the second connecting block 40 is driven to synchronously move, when the fixed clamping hook 42 moves to the lower side of the hook plate 43, the hook tip at one end of the hook plate 43 can be extruded by one side of the inclined surface of the fixed clamping hook 42, the hook tip at the end of the hook plate 43 is extruded and deformed, when the fixed clamping hook 42 passes over the hook tip at the end of the hook plate 43, the hook tip is reset and popped up to limit the fixed clamping hook 42, the fixed clamping hook 42 is limited and fixed at the moment, the pushing of the second pushing block 39 is stopped, and as the connecting rod 8 at one end of the sleeve 7 is installed in the second clamping groove 41 at one side of the second connecting block 40, the synchronous movement of the sleeve 7 can be driven when the second connecting block 40 synchronously moves, the second spring 38 can be pulled to stretch when the sleeve 7 moves, and elastic potential energy can be stored when the sleeve 7 is in advance.
After the puncture biopsy needle 5 and the sleeve 7 are both charged with energy, the puncture biopsy needle is matched with B ultrasonic equipment for use, the sleeve 7 is punctured to a puncture position required by a patient, then the puncture ejection length of the sleeve 7 and the puncture biopsy needle 5 is adjusted according to the puncture length required by the patient, when the puncture biopsy needle is adjusted, the handle 19 is pulled firstly, the handle 19 is pulled to pull the rotating rod 18 to move, the rotating rod 18 drives the gear 17 to slide on the toothed plate 16 so that one end of the gear 17 is separated between the annular gears 22, at the moment, the gear 17 is not limited by the annular gears 22, the reset spring 23 is in a compressed state, at the moment, a worker rotates the rotating rod 18, the rotating rod 18 can drive the gear 17 to rotate, the gear 17 rotates to engage with the toothed plate 16, the toothed plate 16 moves in the horizontal direction, and as the toothed plate 16 is fixedly arranged on the U-shaped rod 14, the two end sliding blocks 12 of the U-shaped rod 14 are respectively and slidably arranged in the first sliding groove and the second sliding groove, so that the distance between the driving sliding block 12 and the first sliding block and the second sliding block can be adjusted, and the puncture biopsy needle can be prevented from being ejected from the puncture position of the puncture biopsy needle 5 when the first sliding block and the second sliding block slide inside the first sliding block and the second sliding block are prevented from the puncture position.
After the adjustment of the adjusting component is completed, the pulling of the handle 19 is loosened, the reset spring 23 is reset, the rotating rod 18 and the gear 17 can be pulled to move to one side close to the inner gear ring 22, the gear 17 is meshed with the inner gear ring 22, the limiting of the gear 17 can be realized, the stability of the U-shaped rod 14 after adjustment is realized, the shaking movement of the U-shaped rod 14 caused by the impact between the first pushing block and the sliding block 12 is avoided, and the stability of the U-shaped rod 14 is increased.
After the distance between the sliding block 12 and the first pushing block and the distance between the sliding block and the second pushing block are adjusted, the pushing handle 32 in the adjusting groove 33 on one side of the first shell 1 is pushed at the moment, the pushing handle 32 can drive the fixed block 31 on one side to slide in the adjusting groove 33 and drive the elastic strips 34 on two sides to move, the elastic strips 34 are driven to move upwards by the upward movement of the fixed block 31, the elastic strips 34 drive the clamping blocks 35 to move in the buckling grooves 37 in the guide rails 36 at the moment, the elastic strips 34 are extruded, the movement of the elastic strips 34 in the guide rails 36 is realized, when the fixed block 31 moves upwards, the stop teeth 30 at one end are driven to move upwards, the stop teeth 30 are separated from the arc-shaped ratchet teeth 29, when the arc-shaped ratchet teeth 29 are not limited by the stop teeth 30, the elastic potential energy is released by the stretching of the first spring 24 at the moment, the puncture biopsy needle 5 is pushed to pop out, the end of the puncture biopsy needle 5 with the cutting groove 6 extends out of the sleeve 7 and punctures into tissues to be sampled, and the tissues are made to enter the sampling cutting grooves 6.
After the biopsy needle 5 is ejected, the striking rod 51 at one side of the arc-shaped ratchet 29 impacts the ejector rod 48, the ejector rod 48 slides in the restraining barrel 25 and the guide barrel 47 after being impacted, one end of the ejector rod 48 is driven to push the hook plate 43, the hook plate 43 rotates around the shaft rod 45, when the shaft rod 45 rotates, the hook tip at one end of the hook plate 43 can be lifted and the other end of the hook plate can extrude the elastic sheet 46, at the moment, the hook tip part of the hook plate 43 is separated from the fixed clamping hook 42, after the fixed clamping hook 42 loses limit, the second spring 38 contracts to release elastic potential energy, the sleeve 7 is pulled to extend to the outer sides of the first shell and the second shell, one end of the sleeve is penetrated into tissues, the end part of the sleeve covers the cutting groove 6, and when the sleeve 7 is ejected, the arc-shaped cutter 52 inside the sleeve 7 can cut tissues in the cutting groove 6, so that the tissues in the cutting groove 6 are prevented from being adhered with the whole tissues of the penetrated part, and the tissues are difficult to take out after the puncture is achieved.
Simultaneously when the puncture biopsy needle 5 and the sleeve 7 are popped up, the first pushing block and the second pushing block are in collision limit with the sliding block 12 in sequence, so that the penetration suction caused by overlong ejection positions of the puncture biopsy needle 5 and the sleeve 7 is avoided, the risk of puncture bleeding is reduced, the distance between the puncture biopsy needle 5 and the sleeve 7 can be adjusted and controlled by adjusting the distance between the sliding block 12 and the first pushing block and the second pushing block, the safety of puncture sampling can be effectively improved, meanwhile, the operation difficulty of medical staff is reduced, and the convenience and accuracy of operation of the medical staff when performing renal biopsy on a patient are improved.
The invention also provides a renal biopsy gun capable of avoiding suction and a use method thereof, which comprises the following specific steps:
S1, firstly, disassembling the first shell 1 and the second shell 2 through a fixing component, then inserting the puncture biopsy needle 5 into the sleeve 7, sleeving and placing the puncture biopsy needle 5 and the sleeve 7, respectively clamping connecting rods 8 at the ends of the puncture biopsy needle 5 and the sleeve 7 into a first clamping groove 28 at one side of a relative first connecting block 27 and a second clamping groove 41 at one side of a second connecting block 40, installing the puncture biopsy needle 5 and the sleeve 7 into the first shell, finally clamping the first shell 1 and the second shell 2 and fixing the puncture biopsy needle and the sleeve through the fixing component, and enabling one end of the installed sleeve 7 to extend outwards through a semicircular groove 3 formed at the ends of the first shell 1 and the second shell 2, so that connection between the puncture biopsy needle 5 and the ends of the sleeve 7 and the first ejection component and the second ejection component is realized;
s2, after the puncture biopsy needle 5 and the sleeve 7 are connected with the first ejection assembly and the second ejection assembly respectively, when a patient needs to be subjected to puncture biopsy sampling, the first pushing block 26 is pushed firstly, so that the end part of the puncture biopsy needle 5 is used for storing energy by extruding the first spring 24, when the first pushing block 26 moves to one side of the stop tooth 30, the arc-shaped ratchet is used for extruding the stop tooth 30 to deform and pass the stop tooth 30, and at the moment, the pushing of the first pushing block 26 can be stopped, and the upward feeding energy storage of the puncture biopsy needle 5 is realized;
S3, after the puncture biopsy needle 5 is charged, pushing the second pushing block 39 again at the moment to drive the sleeve 7 to move and pulling the second spring 38 at the outer side of the sleeve 7 to move, so that the second spring 38 is lengthened to store energy, when the second pushing block 39 drives the fixed hook 42 to pass over the hook tip part at one end of the hook plate 43, the elastic sheet 46 pushes the hook plate 43 to descend at the moment, so that the hook tip part of the hook plate 43 stops limiting and stopping the fixed hook 42, and the pushing of the second pushing block 39 is stopped at the moment, so that the charging and the energy storage of the sleeve 7 are realized;
s4, after the puncture biopsy needle 5 and the sleeve 7 are respectively charged with energy, the puncture biopsy needle 5 is contained in the sleeve 7, then the sleeve 7 is punctured to a puncture part of a patient, and the puncture position of the sleeve 7 is matched with the B ultrasonic equipment to observe the puncture position of the sleeve 7 so as to carry out positioning adjustment;
S5, after the cannula 7 is punctured and positioned, the ejection distance of the puncture biopsy needle is adjusted according to the required puncture length of the puncture position, and during adjustment, the sliding blocks 12 in the first sliding groove 10 and the second sliding groove 11 are adjusted through the adjusting component, so that the distance between the sliding blocks 12 and the first pushing block 26 and the second pushing block 39 is adjusted, and the ejection distance of the puncture biopsy needle 5 and the cannula 7 can be adjusted;
S6, after the ejection distance is adjusted, pushing the push handle 32 at the end part of the first shell 1 at the moment, enabling the fixed block 31 to drive the elastic strips 34 at the two sides below to slide in the guide rail 36, enabling the clamping blocks 35 on the side walls of the end parts of the elastic strips 34 to move in the buckling grooves 37, enabling the fixed block 31 to drive the stop teeth 30 to move upwards, enabling the stop teeth 30 to be separated from the arc-shaped ratchet teeth 29, enabling the first ejection assembly to trigger ejection, enabling the first spring 24 to release elastic potential energy to push the puncture biopsy needle 5 to extend out, and enabling one end of the end part of the puncture biopsy needle with the cutting groove 6 to enter tissues for the next time to sample tissues;
S7, after the first ejection assembly triggers ejection, the second ejection assembly can be pushed by the impact rod 51 to trigger ejection, so that the second spring 38 releases elastic potential energy, the sleeve 7 is pushed to extend out and penetrate into the penetrated tissue, at the moment, the arc-shaped cutter 52 in the sleeve 7 can cut the tissue sampled in the cutting groove 6, the cut tissue stays in the cutting groove 6, the sleeve 7 can cover and sleeve the biopsy needle 5, and the safety of storing the tissue in the cutting groove 6 after sampling is improved;
s8, after puncture sampling, the sleeve 7 is pulled out of the puncture part of a patient, the second pushing block 39 is pushed to move, the action is repeated S3, the sleeve 7 is in an upward energy storage state again, at the moment, the cutting groove 6 at the end part of the puncture biopsy needle 5 in the sleeve 7 is exposed, then the tissue sampled in the cutting groove 6 is taken out, and at the moment, the process of sampling the puncture biopsy tissue can be completed.
Example 2
Referring to fig. 1-15, this embodiment further illustrates example 1, in which a first housing 1, a second housing 2, a biopsy needle 5, a cannula 7, a first ejection assembly, a second ejection assembly, an adjusting assembly and a fixing assembly are illustrated, one end side walls of the first housing 1 and the second housing 2 are symmetrically provided with a semicircular slot 3, a guide slot 4 is provided in each of the first housing 1 and the second housing 2, a cutting slot 6 for sampling kidney tissue is provided in one end side wall of the biopsy needle 5, the cannula 7 is sleeved outside the biopsy needle 5, an arc-shaped cutter 52 is fixedly provided on an inner wall of the cannula 7, the arc-shaped cutter 52 is positioned at one side of the end of the cutting slot 6, one end of the cannula 7 passes through the semicircular slot 3 and extends to the outer sides of the first housing 1 and the second housing 2, one end of the connecting rod 8 is fixedly sleeved with a connecting rod 8, two sides of the connecting rod 8 are fixedly provided with guide blocks 9 which are slidably connected with the guide slot 4;
Referring to fig. 1, 13 and 15, the fixing assembly in the drawings includes a through hole 53 formed in the second housing 2, a screw barrel 54 aligned with the through hole 53 is fixedly disposed on the inner wall of the first housing 1, and a locking screw 55 matched with the screw barrel 54 is inserted into the through hole 53;
referring to fig. 2, a scale 56 is fixedly disposed on one side of the first chute 10 and the second chute 11 and on the outer side wall of the first housing 1.
In the embodiment, through the connection between the first shell and the second shell through the fixing component, the fixing between the first shell and the second shell can be realized, meanwhile, the first elastic component and the second elastic component inside the first shell 1 can be conveniently replaced and maintained, when the sliding block 12 is used, the locking screw 55 in the through hole 53 on the second shell 2 is unscrewed, the disassembling between the first shell and the second shell can be realized, the through hole 53 and the screw barrel 54 are screwed together, the locking screw 55 is inserted into the through hole 53 and the screw barrel 54, so that the fixing installation between the first shell and the second shell is realized, the installation convenience between the first shell and the second shell can be effectively improved, the graduated scale 56 is fixedly arranged on the outer side wall of the first sliding groove and the outer side wall of the second sliding groove, the pointer 13 on one side of the sliding block is pointed out on the graduated scale 56 when the sliding block 12 slides, the observation of the graduated scale 56 is convenient, the distance between the observed part 12 and the first sliding block and the second pushing block can be intuitively observed by medical staff, and the operation and the observation of the medical staff are convenient.
Example 3
Referring to fig. 1-15, this embodiment further illustrates other examples, in which a first housing 1, a second housing 2, a biopsy needle 5, a cannula 7, a first ejection assembly, a second ejection assembly, an adjusting assembly and a fixing assembly are illustrated, a semicircular groove 3 is symmetrically formed on one end side wall of the first housing 1 and one end side wall of the second housing 2, a guide groove 4 is formed inside the first housing 1 and one end side wall of the second housing 2, a cutting groove 6 for sampling kidney tissue is formed on one end side wall of the biopsy needle 5, the cannula 7 is sleeved on the outer side of the biopsy needle 5, an arc-shaped cutter 52 is fixedly arranged on the inner wall of the cannula 7, the arc-shaped cutter 52 is located on one side of the end of the cutting groove 6, one end of the cannula 7 penetrates through the semicircular groove 3 and extends to the outer sides of the first housing 1 and the second housing 2, a connecting rod 8 is fixedly sleeved on one end of the biopsy needle 5 and on the outer side of one end of the cannula 7, guide blocks 9 are fixedly arranged on two sides of the guide groove 4 in sliding connection, the first housing 1 and the second housing 2 are mounted on one side of the end of the biopsy needle 5, a trigger needle 5 is mounted on one side of the end of the biopsy needle 6, the trigger needle 7 is mounted on one side of the needle 7, and the trigger assembly is mounted on one side of the first housing 7 and the end of the needle 7 is mounted on the end of the first housing 1 and the end of the needle 7 and the needle 7 is mounted on the other side of the needle 1.
Referring to fig. 2 and 4-8, an anti-slip push handle 57 is fixedly arranged on one side of each of the first pushing block 26 and the second pushing block 39;
Referring to fig. 12, both sides of the inner wall of the U-shaped block 21 in the drawing are provided with a limiting groove 58, a limiting bar 59 is slidably disposed in the limiting groove 58, and one side of the limiting bar 59 is fixedly connected with the side wall of the U-shaped rod 14.
In this embodiment, the anti-slip push handle 57 is fixedly arranged at one side of the first push block and the second push block, so that the friction force between the first push block and the finger and the stability of the push of the first push block and the second push block can be increased when the medical staff pushes the first push block and the second push block, the limit grooves 58 are formed in the inner walls of the two ends of the U-shaped block 21, the limit grooves 58 are slidably arranged in the limit grooves 58, one ends of the limit grooves 59 are fixedly connected with the side wall of the U-shaped rod 14, the sliding stability of the U-shaped rod 14 can be increased when the U-shaped rod 14 horizontally slides, and the moving safety of the U-shaped rod 14 is improved.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.