CN218304970U - Bionic microtexture puncture biopsy gun capable of reducing pain and reducing resistance - Google Patents
Bionic microtexture puncture biopsy gun capable of reducing pain and reducing resistance Download PDFInfo
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- CN218304970U CN218304970U CN202221322975.2U CN202221322975U CN218304970U CN 218304970 U CN218304970 U CN 218304970U CN 202221322975 U CN202221322975 U CN 202221322975U CN 218304970 U CN218304970 U CN 218304970U
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Abstract
The invention discloses a pain-reducing and resistance-reducing bionic microtexture puncture biopsy gun, which comprises a sampling needle, a cutting sleeve, a launching device, a vibration generating device and a shell, wherein the sampling needle is arranged on the shell; the sampling needle is in a slender cylinder shape and comprises a puncture tool bit, a connecting rod and a needle body, the puncture tool bit and the needle body are coaxially arranged in a cylinder with the same diameter, one end of the connecting rod is connected with the puncture tool bit, and the other end of the connecting rod is connected with the needle body; the cutting sleeve is in a slender tubular shape, and the left end part of the cutting sleeve is an oblique cutting edge; the cutting sleeve is sleeved at the outer side of the sampling needle, and the left ends of the cutting sleeve and the sampling needle extend out of the shell, so that the sampling needle has the beneficial effects that: due to the existence of the microtexture, a certain amount of tissue fluid can be stored in the microtexture in the puncturing process, the tissue fluid has a good lubricating effect, the friction force is reduced, the puncturing resistance is reduced, and the pain is reduced; meanwhile, the microtexture can store a small amount of anesthetic to anesthetize the puncture channel, so that pain is reduced.
Description
Technical Field
The invention belongs to the technical field of medical equipment, and particularly relates to a pain-reducing and resistance-reducing bionic microtexture puncture biopsy gun.
Background
Breast cancer is a disease which threatens the life and health of women at present and has the mortality rate at the first place of malignant tumors of women. The incidence of breast cancer is on the rise year by year, with about 21 million new cases reported each year. Breast cancer patients who receive correct treatment early in time have a 5-year survival rate as high as 90%. Therefore, the finding of a sensitive and effective detection method for early diagnosis of breast cancer has important significance for reducing the fatality rate of breast cancer and improving the life quality of patients.
With the progress of the standardized treatment of breast cancer, new auxiliary chemotherapy, breast protection surgery, sentinel lymph node biopsy and other diagnosis and treatment means are increasingly paid attention, and become the mainstream of breast cancer diagnosis and treatment at present. The pathological histological examination result is the gold standard for breast cancer diagnosis, and the exact pathological histological result is the precondition for comprehensive treatment of breast cancer. Histopathological examination includes open surgical biopsy and needle lesion biopsy. With the maturity and progress of the imaging guided needle biopsy technology, the proportion of open surgery breast lesion biopsy is gradually reduced. Currently, histopathological diagnosis is generally applied clinically by obtaining lesion tissues through hollow needle puncture under the guidance of X-ray, ultrasound and MRI.
The conventional puncture biopsy gun mainly comprises a puncture cannula, a biopsy needle core in the cannula, a needle core, a cannula launching handle and the like. Wherein, the biopsy needle core in the sleeve is a smooth stainless steel needle with an inclined tip and a sampling groove, and the sleeve is a stainless steel tube with an inclined tip and scales. Before puncturing, the skin, needle passage and the tissues around the focus of infection at the puncture site should be anesthetized by the operating physician. During the procedure from the skin at the puncture site to the trigger point for drawing material, the biopsy needle is retracted within the cannula and the two enter the breast tissue together. After the trigger point is reached, the operating doctor presses the emission button, the biopsy needle core and the sleeve are sequentially and rapidly extended outwards, and the lesion sample entering the material taking groove is cut by the sleeve and is sealed in the groove. After the puncture biopsy gun is separated from the body, the lesion specimen is fixed in 10% neutral formaldehyde solution and then is sent for inspection.
According to the drug regulation, the upper limit of the single use of the conventional anesthetic lidocaine does not exceed 400mg. However, in the process of anesthesia, the patient often has a longer anesthesia puncture path due to a larger breast or a deeper lesion, and the anesthesia effect of deep tissues is poor, which is likely to cause obvious pain. The main cause of pain is the puncture and cutting forces generated by the biopsy needle core and the cannula during insertion into soft tissue. Especially for patients with hypertension and heart diseases, how to reduce the cardiovascular unstable events caused by pain as much as possible becomes an urgent problem to be solved in clinical work.
Disclosure of Invention
Aiming at the problems that pain is obvious in the biopsy sampling process and normal sampling is influenced in the prior art, the bionic microtexture puncture biopsy gun capable of reducing pain and reducing resistance is provided.
A bionic microtexture puncture biopsy gun capable of reducing pain and reducing drag comprises a sampling needle, a cutting sleeve, a launching device and a shell;
the sampling needle is in a slender cylinder shape and comprises a puncture tool bit, a connecting rod and a needle body, the puncture tool bit and the needle body are coaxially arranged in a cylinder with the same diameter, one end of the connecting rod is connected with the puncture tool bit, and the other end of the connecting rod is connected with the needle body;
the cutting sleeve is in a slender tubular shape, and the left end part of the cutting sleeve is an oblique cutting edge;
the cutting sleeve is sleeved at the outer side of the sampling needle, the left ends of the cutting sleeve and the sampling needle extend out of the shell, and the right ends of the cutting sleeve and the sampling needle are positioned in the shell;
the launching device comprises a shell and a launching mechanism, wherein the shell is slidably arranged in the shell, the right ends of the sampling needle and the cutting sleeve are arranged in the shell and connected with the launching mechanism, and the launching mechanism is arranged in the shell and used for successively launching the sampling needle and the cutting sleeve for a certain distance;
an axial linear groove micro-texture is arranged on the outer cylindrical surface of the puncture tool bit, the linear groove micro-texture is a linear groove with the depth and the width of 20 mu m, the length of the linear groove is 10mm, the linear groove is distributed along the circumference of the cylindrical surface in an array manner, a plurality of sections of linear grooves are arranged along the axial direction, and intervals are arranged between the sections in the axial direction.
The pain-reducing and resistance-reducing bionic microtexture puncture biopsy gun is characterized in that an axial linear groove microtexture is arranged on the outer cylindrical surface of the cutting sleeve, the linear groove microtexture is a linear groove with the depth and the width both being 20 mu m, the length of the linear groove is 10mm, the linear groove is distributed along the circumference of the cylindrical surface in an array mode, a plurality of sections of linear grooves are arranged in the axial direction, and intervals are arranged between sections in the axial direction.
The bionic microtexture puncture biopsy gun capable of relieving pain and reducing resistance further comprises a vibration generating device, wherein the vibration generating device comprises a sound wave motor, a lead screw and a battery, the sound wave motor is arranged in the shell, an output shaft of the sound wave motor is connected with the lead screw, the lead screw is in threaded connection with a nut, the nut is arranged on the shell, and the battery is arranged in the shell and supplies power for the sound wave motor;
the shell is provided with a locking screw connected with a thread, and the tail end of the locking screw tightly pushes the shell.
The pain-reducing and resistance-reducing bionic microtexture puncture biopsy gun further comprises an injection needle shaft, the rear end of the injection needle shaft is provided with a rotary table, and the front end of the injection needle shaft is detachably connected with the piston;
the end of the puncture tool bit is provided with an injection hole, the puncture tool bit and the needle body are provided with through holes, the injection needle shaft is connected with a piston and inserted into the through hole of the sampling needle, the piston is positioned in the through hole of the puncture tool bit, and the right end of the injection needle shaft is arranged on the outer side of the right end of the shell.
The bionic microtexture puncture biopsy gun capable of reducing pain and reducing drag is characterized in that the front end of the injection needle shaft is in threaded connection with the piston, the front end of the piston is provided with a notch, the anti-rotation stop block is arranged at the end part of an inner hole of the puncture tool bit, and the notch of the piston is matched with the anti-rotation stop block in a clamping manner.
The pain-reducing and resistance-reducing bionic microtexture puncture biopsy gun comprises a launching mechanism, a baffle plate, a first spring, a second spring, a first connecting rod, a second connecting rod, a first cylindrical guide rod and a second cylindrical guide rod,
the baffle is arranged in the shell, one end of the first cylindrical guide rod is arranged in the shell and can slide left and right in the shell, one end of the second cylindrical guide rod is arranged in the shell and can slide left and right in the shell, the first connecting rod is in a corner shape, one end of the first cylindrical guide rod is connected with the first cylindrical guide rod, the other end of the first cylindrical guide rod is connected with the sampling needle, the second connecting rod is in a corner shape, one end of the second connecting rod is connected with the second cylindrical guide rod, the other end of the second connecting rod is connected with the cutting sleeve, one end of the first spring is fixed on the baffle, the other end of the first spring is connected with the first cylindrical guide rod, one end of the second spring is fixed on the baffle, and the other end of the second spring is connected with the second cylindrical guide rod;
the end part of the first cylindrical guide rod is provided with a first stop dog, the end part of the second cylindrical guide rod is provided with a second stop dog, and the shell is provided with a key which can stop and release the first stop dog and the second stop dog to move up and down.
The invention has the beneficial effects that:
due to the existence of the microtexture, a certain amount of tissue fluid can be stored in the microtexture in the puncturing process, the tissue fluid has a good lubricating effect, the friction force is reduced, the puncturing resistance is reduced, and the pain is reduced; meanwhile, the microtexture can store a small amount of anesthetic to anesthetize the puncture channel, so that pain is reduced.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is a schematic view of the internal structure of the present invention;
FIG. 4 is a schematic view of the needle assembly of the present invention;
FIG. 5 is a schematic view of the needle shaft of the present invention;
FIG. 6 is a schematic view of the piston of the present invention;
FIG. 7 is a schematic view of a sampling needle according to the present invention;
FIG. 8 is an enlarged schematic view of a sampling tip segment of the present invention;
FIG. 9 is an enlarged schematic view of a sampling tip segment of the present invention;
FIG. 10 is a schematic view of an anti-rotation block of the present invention;
FIG. 11 is a schematic view of a cutting sleeve according to the present invention;
fig. 12 is an enlarged schematic view of the head of the cutting sleeve of the present invention.
Detailed Description
In order to make the technical problems solved, the technical solutions adopted and the technical effects achieved by the present invention clearer, the technical solutions of the present invention are further described below by way of specific embodiments with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements associated with the present invention are shown in the drawings.
Referring to fig. 1 to 12, the present embodiment provides a bionic microtexture puncture biopsy gun with pain and drag reduction, which comprises an injection needle shaft 1, a sampling needle 2, a cutting cannula 3, a launching device, and a vibration generating device.
As shown in fig. 5, the syringe shaft 1 is provided with a rotary disk 11 at the rear end and a piston 12 detachably connected to the front end. As shown in FIG. 6, the front end of the needle shaft 1 is screwed to the piston 12.
As shown in fig. 7, the sampling needle 2 is a slender cylinder, and comprises a puncture tool bit 21, a connecting rod 23 and a needle body 24, the puncture tool bit 21 and the needle body 24 are coaxially arranged in a cylinder with the same diameter, one end of the connecting rod 23 is connected with the puncture tool bit 21, the other end is connected with the needle body 24, the puncture tool bit 21 and the needle body 24 are provided with through holes, the outer cylindrical surface of the puncture tool bit 21 is provided with an axial linear groove microtexture, the depth and the width of the linear groove microtexture are both about 20 μm and are equivalent to the size and the level of a cell scale, and the length of the linear groove is a section of 10mm and is distributed along the circumference of the cylindrical surface in an array manner. Along the axial direction, a plurality of sections of linear grooves are arranged, intervals are arranged among the sections, and each section is arranged along the circumference. The diameter of the connecting rod 23 is significantly smaller than the diameter of the piercing tip 21 in order to form a sample reservoir.
The left end of the piercing tool bit 21 is a beveled point as shown in fig. 8. As shown in fig. 9, the left end of the piercing bit 21 is a triangular edge tip, and the cutting edge has a saw-toothed microtexture, i.e. a part of the material is cut off from the straight edge of the edge to form a saw-toothed curve. The length of each sawtooth is about 20 to 50 micrometers, a plurality of puncture needle points can be formed by the sawtooth structure, so that the soft tissue of a human body can be punctured more easily, the traditional soft tissue puncturing effect can be changed into the soft tissue sawing effect by matching with vibration, the needle insertion is easier, and the needle insertion force is smaller.
As shown in fig. 11 and 12, the cutting cannula 3 is in a slender tube shape, the left end part is an oblique cutting edge 31, an axial linear groove micro-texture is arranged on the outer cylindrical surface, the depth and the width of the linear groove micro-texture are both about 20 μm and are equivalent to the size of a cell scale, and the length of each linear groove is 10mm section and is distributed along the circumference of the cylindrical surface in an array way. Along the axial direction, a plurality of sections of linear grooves are arranged, intervals are arranged among the sections, and each section is arranged along the circumference.
As shown in FIG. 4, the needle shaft 1, the sampling needle 2 and the cutting cannula 3 are assembled together, wherein the needle shaft 1 is inserted into the through hole of the sampling needle 2, and the cutting cannula 3 is fitted at the outer side position of the sampling needle 2.
The three are matched, except puncturing soft tissues, two functions can be realized, one is to inject the anesthetic for the second time, and the other is to sample.
A secondary injection anesthesia process. An injection hole 22 is formed at the end part of the puncture tool bit 21, and the injection hole 22 is communicated with the through hole of the puncture tool bit 21. The injection needle shaft 1 is connected with the piston 12 and inserted into the through hole of the sampling needle 2, the piston 12 is positioned in the through hole of the puncture tool bit 21, the injection needle shaft 1 is pulled backwards, so that the piston 12 is positioned at the inner position of the right end of the puncture tool bit 21 (but not reaching the material storage groove), and the anesthetic is sucked into the through hole cavity of the puncture tool bit 21 through the injection hole 22. After the sampling needle 2 is inserted into the needle for shooting, the injection needle shaft 1 is pushed forwards, so that anesthetic is injected into a target area at the deep part of soft tissue from the injection hole 22, and secondary anesthesia is carried out on the part to be cut.
As shown in fig. 6, the front end of the piston 12 has a notch. As shown in fig. 10, a rotation prevention stopper 28 is provided at the end of the inner hole of the puncture tip 21. During or after the injection of the anesthetic by the piston 12, the needle shaft 1 is rotated properly so that the piston 12 is just engaged with the rotation preventing stopper 28 and then the piston 12 cannot rotate. Other structures can be arranged, so that the piston can not rotate at the front end part of the inner hole of the puncture tool bit 21 after the anesthetic is injected.
After the injection is finished, the piston 12 can only slide back and forth in the through hole of the puncture tool bit 21 and can not rotate, so that the injection needle shaft 2 and the piston 12 are detached in a threaded manner by rotating the rotary disc 11, and the piston 12 is left in the puncture tool bit 21, so that the sample is prevented from polluting needle channel tissues through an injection port in the sampling process. And then the injection shaft 2 is pulled out.
And (5) sampling. As shown in fig. 8, the connecting rod 23 has a diameter significantly smaller than that of the piercing bit 21. When the cutting cannula 3 is slid over the sampling needle 2, the clearance between the two is small at other positions, while there is a large clearance at the position of the connecting rod 23. When the sampling needle 2 is inserted into soft tissue, the cutting cannula 3 is slid rapidly from the rear end position of the sampling needle 2 to the position of the puncture tip 21, and passes through the position of the connecting rod 23, so that the soft tissue located there is cut off and sealed in the position between the two. Then, the two are pulled out of the soft tissue, and the sampling of the soft tissue is completed.
The straight line groove is of a micro texture, and during the puncturing process, tissue fluid can be stored in the straight line groove, so that the lubricating effect is achieved, and the puncturing friction force of the cutting sleeve and the sampling needle can be reduced. The linear groove microtexture is distributed on the cylindrical surface of the sleeve in a circumferential array, and the array quantity is flexibly set according to the puncture requirement; the depth and width of the linear groove are 20 mu m and are equal to the cell scale level; the length of the linear groove is 10mm, and the axial number of the area between the two scales is flexibly arranged according to the puncture requirement.
Due to the micro-texture, a certain amount of tissue fluid can be stored in the micro-texture in the puncturing process, the tissue fluid has a good lubricating effect, the friction force is reduced, the puncturing resistance is reduced, and the pain is reduced.
Meanwhile, the microtexture can store a small amount of anesthetic to anesthetize the puncture channel, so that pain is reduced.
As shown in fig. 1, 2 and 3, the transmitter includes a housing 51, a baffle 52, a first spring 53, a second spring 56, a first connecting rod 54, a second connecting rod 57, a first cylindrical guide 55 and a second cylindrical guide 58.
As shown, the housing 51 is disposed in the casing 6; the baffle 52 is disposed in the housing 51; the first cylindrical guide rod 55 is arranged in the shell 51 and can slide left and right in the shell 51; the second cylindrical guide rod 58 is arranged in the shell 51 and can slide left and right in the shell 51, the right ends of the sampling needle 2 and the cutting sleeve 3 can slide left and right in the shell 51, the first connecting rod 54 is in a corner shape, one end of the first connecting rod is connected with the first cylindrical guide rod 55, and the other end of the first connecting rod is connected with the sampling needle 2; the second connecting rod 57 is in a corner shape, one end of the second connecting rod is connected with the second cylindrical guide rod 58, and the other end of the second connecting rod is connected with the cutting sleeve 3; one end of a first spring 53 is fixed on the baffle plate 52, and the other end is connected with a first cylindrical guide rod 55; a second spring 56 is fixed to the stop plate 52 at one end and connected to a second cylindrical guide 58 at the other end.
As shown in fig. 3, a first stopper 59 is disposed at an end of the first cylindrical guide 55, a second stopper 60 is disposed at an end of the second cylindrical guide 58, and a button 62 capable of stopping and releasing the first stopper 59 and the second stopper 69 is disposed on the housing 6.
As shown in FIG. 1, the second cylindrical guide rod 58 is pressed toward the inside of the housing 6, and the sampling needle 2 is driven to slide toward the right side against the elastic force of the spring, and is stopped by the button 62 after reaching the action position of the second stopper 60. Similarly, a first cylindrical guide 55. When the release is needed, the key 62 at the upper middle part of the shell 6 is pressed, the second stop 60 is released, and the second cylindrical guide rod 58 and the sampling needle 2 are pushed to be shot outwards under the action of the spring and are inserted into soft tissues. At approximately the same time (slightly later), first stop 59 is released, and under the action of the spring, first cylindrical guide 55 and cutting cannula 3 are pushed to shoot outward, completing the tissue cutting sample.
The shell 6 is in threaded connection with a locking screw 61, the lower end of the locking screw 61 extends into the shell 6, the shell 51 can be tightly pressed, the left and right sliding of the shell 51 is limited, the locking screw 61 is loosened, and the limitation on the shell 51 is loosened.
As shown in fig. 2, the vibration generating device is composed of a sound wave motor 41, a lead screw 43, and a battery 42. The sound wave motor 41 is arranged inside the shell, and can realize positive and negative rotation of angular velocity and angular displacement, an output shaft of the sound wave motor 41 is connected with a lead screw 43, the lead screw 43 is in threaded connection with a nut 44, the nut 44 is arranged on the shell 51, and the shell 51 can be arranged in the shell 6 in a left-right sliding manner. The housing 51 cannot rotate within the housing 6, preventing rotation during puncturing. The locking screw 61 is loosened when vibration piercing is required, and axial vibration limitation of the housing 6 on the launching device is released. The operating button can control the starting, stopping and rotating parameters of the sound wave motor by using a circuit board, and then the parameters can be converted into reciprocating linear vibration of the nut 44 with different frequencies and amplitudes. The reciprocating linear vibration of the sampling needle and the cutting sleeve with different frequencies and amplitudes in the puncture process can be realized, and the puncture force is further reduced.
The using method comprises the following steps:
after the puncture biopsy gun is installed according to the structure and the principle of the invention, the pain-reducing and resistance-reducing puncture of soft tissues, the secondary anesthesia of a target area in an operation and the specimen cutting can be realized under the guidance of ultrasound.
The method comprises the following specific steps:
step 3, inserting the injection needle shaft 1 and the piston 12 into a through hole of the sampling needle and pushing the through hole to the foremost end;
step 4, the sampling needle and the cutting sleeve are retracted into the launching device through the cylindrical guide rod, and only the puncture tool bit of the sampling needle is exposed out of the cutting sleeve;
step 5, the puncture tool bit and the cutting sleeve are immersed in anesthetic, a small amount of anesthetic is contained in the groove of the microtexture, meanwhile, the east injection needle shaft 1 is drawn out, and a proper amount of anesthetic is drawn into a hole cavity in the front end of the puncture tool bit 21 through the piston 12 and the injection hole 22;
step 6, under the ultrasonic guidance, holding the shell 6 by hand, aligning the needle point to the puncture starting point, and determining the puncture direction;
step 7, loosening the locking screw 61 on the outer shell 6 to enable the transmitting device to axially move in the outer shell 6;
step 8, turning on a motor of the vibration generating device, selecting a gear, and puncturing and inserting the needle for the skin and the soft tissue under the assistance of the vibration of the sampling needle and the cutting sleeve;
step 9, determining a transmitting position under the guidance of ultrasound;
step 10, turning off a motor of the vibration generating device to stop vibration;
step 13, drawing the injection needle shaft 1 out of the hollow micro-texture needle core, and leaving the piston 12 to plug the front end of the sampling needle 2;
step 14, locking a locking screw 61 on the shell 6, and tightly pushing the shell 51 against the lower end of the screw 61 to relatively fix the emitting device and the shell 6;
step 15, triggering the emission buttons of the sampling needle and the cutting sleeve emission device respectively to enable the sampling needle and the cutting sleeve to be ejected out in sequence, and cutting and taking materials from a target area;
and step 16, drawing the needle biopsy gun away from the soft tissue and the skin.
Thus, the biopsy sampling is completed.
A large number of experiments show that: (1) The non-smooth biological surface with certain morphology has obvious antifriction effect, such as: blood sucking nose device with seta for mosquito and ovipositor with unsmooth parasite capable of remarkably reducing puncture resistance; (2) The puncture force can be obviously reduced by the vibration auxiliary needle insertion with proper frequency.
The invention provides a secondary anesthesia puncture biopsy gun capable of being used in an operation. The puncture force and the cutting force can be reduced, the pain can be reduced, the biopsy puncture gun in the deep target area can be secondarily anesthetized in the operation, and the secondary anesthetic injection is carried out through the injection needle shaft, so that the puncture pain of a female patient and the cell propagation harm in the operation can be effectively reduced.
In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "clockwise", counterclockwise "and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention.
The foregoing embodiments are merely illustrative of the principles and features of this invention, which is not limited to the above-described embodiments, but rather is susceptible to various changes and modifications without departing from the spirit and scope of the invention, which changes and modifications are within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (4)
1. A bionic microtexture puncture biopsy gun capable of reducing pain and reducing drag is characterized by comprising a sampling needle (2), a cutting sleeve (3), a launching device and a shell (6);
the sampling needle (2) is in a slender cylinder shape and comprises a puncture tool bit (21), a connecting rod (23) and a needle body (24), the puncture tool bit (21) and the needle body (24) are coaxially arranged in a cylinder with the same diameter, one end of the connecting rod (23) is connected with the puncture tool bit (21), and the other end of the connecting rod is connected with the needle body (24);
the cutting sleeve (3) is in a slender tubular shape, and the left end part of the cutting sleeve is provided with an oblique cutting edge (31);
the cutting sleeve (3) is sleeved at the outer side of the sampling needle (2), the left ends of the cutting sleeve (3) and the sampling needle (2) extend out of the shell (6), and the right ends of the cutting sleeve (3) and the sampling needle (2) are positioned in the shell (6);
the launching device comprises a shell (51) and a launching mechanism, wherein the shell (51) is slidably arranged in a shell (6), the right ends of the sampling needle (2) and the cutting sleeve (3) are arranged in the shell (51) and connected with the launching mechanism, and the launching mechanism is arranged in the shell (51) and used for successively launching the sampling needle (2) and the cutting sleeve (3) for a certain distance;
an axial linear groove micro-texture is arranged on the outer cylindrical surface of the puncture tool bit (21), the linear groove micro-texture is a linear groove with the depth and the width of 20 mu m, the length of each linear groove is 10mm, the linear grooves are distributed along the circumference of the cylindrical surface in an array manner, a plurality of sections of linear grooves are arranged along the axial direction, and intervals are arranged between the sections in the axial direction.
2. A pain-reducing drag-reducing bionic microtexture needle biopsy gun as claimed in claim 1, characterized in that the cutting sleeve (3) has an axial straight-line groove microtexture on the outer cylindrical surface, the straight-line groove microtexture is a straight-line groove with 20 μm depth and width, the length of the straight-line groove is a section of 10mm, the section is distributed along the circumference of the cylindrical surface in an array manner, a plurality of sections of straight-line grooves are arranged along the axial direction, and the sections are spaced axially.
3. The pain-reducing and drag-reducing bionic microtexture puncture biopsy gun according to claim 1, further comprising a vibration generating device, wherein the vibration generating device comprises a sound wave motor (41), a lead screw (43) and a battery (42), the sound wave motor (41) is arranged inside the shell (6), an output shaft of the sound wave motor (41) is connected with the lead screw (43), the lead screw (43) is in threaded connection with a nut (44), the nut (44) is arranged on the shell (51), and the battery (42) is arranged in the shell (6) to supply power to the sound wave motor (41);
the shell (6) is provided with a locking screw (61) in threaded connection, and the tail end of the locking screw (61) tightly props against the shell (51).
4. The pain-reducing drag-reducing biomimetic microtextured biopsy gun according to claim 1, wherein the firing mechanism comprises a flapper (52), a first spring (53), a second spring (56), a first connecting rod (54), a second connecting rod (57), a first cylindrical guide (55), and a second cylindrical guide (58),
the baffle (52) is arranged in the shell (51), one end of a first cylindrical guide rod (55) is arranged in the shell (51) and can slide left and right in the shell (51), one end of a second cylindrical guide rod (58) is arranged in the shell (51) and can slide left and right in the shell (51), a first connecting rod (54) is in a corner shape, one end of the first connecting rod is connected with the first cylindrical guide rod (55), the other end of the first connecting rod is connected with the sampling needle (2), a second connecting rod (57) is in a corner shape, one end of the second connecting rod is connected with the second cylindrical guide rod (58), the other end of the second connecting rod is connected with the cutting sleeve (3), one end of a first spring (53) is fixed on the baffle (52), the other end of the first spring is connected with the first cylindrical guide rod (55), one end of the second spring (56) is fixed on the baffle (52), and the other end of the second cylindrical guide rod (58) is connected with the second cylindrical guide rod;
a first stop block (59) is arranged at the end part of the first cylindrical guide rod (55), a second stop block (60) is arranged at the end part of the second cylindrical guide rod (58), and a key capable of stopping and releasing the first stop block (59) and the second stop block (60) to move up and down is arranged on the shell (6).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221322975.2U CN218304970U (en) | 2022-05-30 | 2022-05-30 | Bionic microtexture puncture biopsy gun capable of reducing pain and reducing resistance |
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| CN202221322975.2U CN218304970U (en) | 2022-05-30 | 2022-05-30 | Bionic microtexture puncture biopsy gun capable of reducing pain and reducing resistance |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115137401A (en) * | 2022-05-30 | 2022-10-04 | 烟台毓璜顶医院 | Pain-reducing and resistance-reducing bionic microtexture vibration puncture biopsy gun capable of achieving secondary anesthesia in operation |
| CN115137403A (en) * | 2022-05-30 | 2022-10-04 | 烟台毓璜顶医院 | Secondary anesthesia puncture biopsy gun in operation |
-
2022
- 2022-05-30 CN CN202221322975.2U patent/CN218304970U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115137401A (en) * | 2022-05-30 | 2022-10-04 | 烟台毓璜顶医院 | Pain-reducing and resistance-reducing bionic microtexture vibration puncture biopsy gun capable of achieving secondary anesthesia in operation |
| CN115137403A (en) * | 2022-05-30 | 2022-10-04 | 烟台毓璜顶医院 | Secondary anesthesia puncture biopsy gun in operation |
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