Gastrolith and foreign matter fretsaw cutting device

Abstract

The utility model relates to the technical field of medical instruments, and discloses a gastrolith and foreign matter fretsaw cutting device which comprises an outer sleeve, the outer surface of the outer sleeve is fixedly connected with a first buckle and a second buckle respectively, an inner sleeve is arranged in the outer sleeve, the inner part of the inner sleeve is movably connected with a cutting steel wire, and the cutting steel wire is fixedly connected with the first buckle and the second buckle. The cutting steel wire comprises a telescopic part, a push-pull part and a ferrule, the ferrule is located outside the outer sleeve, the effect that the ferrule tightly hoops the stone all the time can be guaranteed through the elastic effect of the spring, and therefore the acting face of the fret saw cannot slide, and the cutting quality of the device is greatly improved; in addition, the left and right ring movement mode provided in the utility model can make the form and size of the loop out of the loop not affected, compared with a traditional shaping loop, the loop is more advantageous, the loop out can be adjusted at will according to the position, size and form of the stone, and then the application range and practicability of the device are greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field, concretely is a gastric calculus and foreign body wire saw cutting device. BACKGROUND

[0002] Foreign body formed by the coagulation of certain plant components or swallowed hair and certain minerals such as calcium carbonate, barium agent, bismuth agent, etc. in the stomach is commonly known as gastrolithiasis. Patients can be completely asymptomatic, or have upper abdominal discomfort, loss of appetite, halitosis, nausea, vomiting or varying degrees of abdominal distension, abdominal pain, etc. Gastric calculus is a common clinical disease, and there are various forms of gastric calculus cutters, all of which cut the calculus by tightly squeezing the coagulation through the traction of the steel wire loop. This type of cutter is difficult to cut hard calculus.

[0003] At present, it is difficult to treat hard gastric calculus clinically, and some patients need surgical treatment, therefore we provide a gastric calculus and foreign body wire saw cutting device. SUMMARY

[0004] The utility model discloses a gastric calculus and foreign body wire saw cutting device, solve the problem in the background art.

[0005] The application embodiment provides a gastric calculus and foreign body wire saw cutting device, which comprises an outer sleeve, a first buckle and a second buckle are fixedly connected to the outer surface of the outer sleeve, an inner sleeve is arranged in the inner part of the outer sleeve, a cutting steel wire is movably connected to the inner part of the inner sleeve, the cutting steel wire comprises an extension part, a push-pull part and a sleeve ring, the sleeve ring is located outside the outer sleeve, one end of the extension part and the push-pull part is fixedly connected with the sleeve ring, and the other end of the extension part and the push-pull part is provided with a handle part.

[0006] By adopting the above technical scheme, the device can quickly cut the foreign matter in the stomach through the sleeve ring, thereby greatly improving the cutting efficiency of the device.

[0007] Optionally, two passages are formed in the inner part of the handle part, a positioning tube is movably connected to the inner part of each of the two passages, a positioning block is movably connected to the inner part of one of the positioning tubes, one side of the positioning block is fixedly connected with the extension part, a spring is arranged on the outer surface of the extension part between the positioning block and the inner wall of the positioning tube, a pull bolt is fixedly connected to the end of the positioning block away from the spring, a push-pull rod is movably connected to the inner part of the other passage, and one side of the push-pull rod extends into the inner part of the positioning tube and is fixedly connected with the push-pull part.

[0008] By adopting the technical scheme, the elastic effect of the spring can ensure that the sleeve ring always tightly grips the calculus, so that the action surface of the wire saw cannot slide, thereby greatly improving the cutting quality of the device, and the pull bolt can prevent the sleeve ring from being jammed and the spring from failing to rebound due to insufficient spring force.

[0009] Optionally, a slot is formed in one side outer surface of the handle part, and a cable is arranged in the slot, and one end of the cable is fixedly connected with the push-pull part.

[0010] By adopting the technical scheme, the cable can be quickly pulled to stretch the telescopic part.

[0011] Optionally, the first buckle and the second buckle are both made of elastic material, and are respectively fixedly connected with the endoscope operation part and the endoscope front end.

[0012] By adopting the technical scheme, the device can quickly fix the outer sleeve tube and the endoscope, thereby greatly improving the practicality of the device.

[0013] Optionally, the sleeve ring is designed in imitation of saw teeth.

[0014] By adopting the technical scheme, the cutting effect of the sleeve ring is better due to the design in imitation of saw teeth.

[0015] Optionally, the inner sleeve tube is a double-channel catheter, and the inner sleeve tube is one of a double-cavity plastic tube, a composite tube, a double-spring tube, a double-metal braided tube and a double-composite braided tube.

[0016] By adopting the technical scheme, the design of the double-channel catheter allows two guide wires to be arranged in different channels, thereby avoiding mutual abrasion between the two guide wires, and the protection of the inner sleeve tube and the outer sleeve tube can avoid abrasion of the guide wires on the cavity of the endoscope, thereby greatly improving the use safety of the device.

[0017] Compared with the prior art, the technical scheme of the present application has the following advantages:

[0018] The handle side of the technical scheme of the present application is compressed and tightened by a spring, the elastic effect of the spring can ensure that the sleeve ring always tightly grips the calculus, so that the action surface of the wire saw cannot slide, thereby greatly improving the cutting quality of the device, and the left and right ring movement mode proposed in the present application can make the shape and size of the sleeve ring out of the ring not be affected, which is more advantageous than the traditional fixed ring, and the out-of-ring can be adjusted according to the position, volume, shape of the calculus, thereby greatly improving the application range and practicality of the device. BRIEF DESCRIPTION OF DRAWINGS

[0019] Other features, objects, and advantages of the application will become more apparent from the following detailed description of non-limiting embodiments thereof as read in conjunction with the accompanying drawings:

[0020] Figure 1 It is a front view of the whole in the embodiment 1 of the gastric stone and foreign body saw cutting device of the utility model;

[0021] Figure 2 It is a front view of the whole in the embodiment 2 of the gastric stone and foreign body saw cutting device of the utility model;

[0022] Figure 3 It is a schematic diagram of the internal structure of the whole in the embodiment 1 of the gastric stone and foreign body saw cutting device of the utility model;

[0023] Figure 4 It is a schematic diagram of the structure of the cutting steel wire whole in the gastric stone and foreign body saw cutting device of the utility model.

[0024] In the figure: 1, handle part; 2, outer sleeve; 3, inner sleeve; 4, telescopic part; 5, push-pull part; 6, ferrule; 7, positioning block; 8, spring; 9, pull bolt; 10, push-pull rod; 11, first buckle; 12, second buckle; 13, notch; 14, pull cable; 15, cutting steel wire; 16, positioning tube. DETAILED DESCRIPTION Embodiment 1

[0025] Please refer to Figure 1 、 Figure 3 and Figure 4 , the utility model provides a technical scheme: a gastric stone and foreign body saw cutting device, including outer sleeve 2, the outer surface of outer sleeve 2 is fixedly connected with first buckle 11 and second buckle 12 respectively, the inside of outer sleeve 2 is provided with inner sleeve 3, and the inside of inner sleeve 3 is movably connected with cutting steel wire 15, and cutting steel wire 15 includes telescopic part 4, push-pull part 5 and ferrule 6, and ferrule 6 is located at the outside of outer sleeve 2, and one end of telescopic part 4 and push-pull part 5 is fixedly connected with ferrule 6, and the other end of telescopic part 4 and push-pull part 5 is provided with handle part 1.

[0026] By adopting the above technical scheme, the device can quickly cut the foreign matter in the stomach through ferrule 6, thereby greatly improving the cutting efficiency of the device.

[0027] In the embodiments of the present application, as Figure 1 and Figure 3As shown, the handle part 1 has two channels inside, and positioning tubes 16 are movably connected inside both channels. A positioning block 7 is movably connected inside one of the positioning tubes 16. One side of the positioning block 7 is fixedly connected to the telescopic part 4. A spring 8 is provided on the outer surface of the telescopic part 4 between the positioning block 7 and the inner wall of the positioning tube 16. A pull bolt 9 is fixedly connected to the end of the positioning block 7 away from the spring 8. A push-pull rod 10 is movably connected inside the other channel. One side of the push-pull rod 10 extends into the interior of the positioning tube 16 and is fixedly connected to the push-pull part 5.

[0028] By adopting the above technical solution, the elastic effect of spring 8 can ensure that the collar 6 always tightly clamps the stone, so that the working surface of the wire saw will not slip, thereby greatly improving the cutting quality of the device. The pull bolt 9 can prevent the collar 6 from getting stuck and the spring 8 from failing to rebound due to insufficient spring force.

[0029] In the embodiments of this application, such as Figure 3 As shown, the first buckle 11 and the second buckle 12 are both made of elastic material and are fixedly connected to the endoscope operating part and the endoscope front end, respectively.

[0030] By adopting the above technical solution, this device can quickly and securely connect the outer sleeve 2 to the endoscope, thereby greatly improving the practicality of the device.

[0031] In the embodiments of this application, such as Figure 3 As shown, the collar 6 has a sawtooth-like design.

[0032] By adopting the above technical solution, the sawtooth-like design makes the cutting effect of the collar 6 better.

[0033] In the embodiments of this application, such as Figure 3 As shown, the inner sleeve 3 is a dual-channel conduit, and the inner sleeve 3 is one of the following: a double-lumen plastic tube, a composite tube, a double spring tube, a double metal braided tube, and a double composite braided tube.

[0034] By adopting the above technical solution and utilizing the dual-channel catheter design, the two guidewires can be placed in different channels, thereby avoiding mutual wear between the two guidewires. In addition, the protective function of the inner sleeve 3 and the outer sleeve 2 can prevent the guidewires from causing wear on the endoscope cavity, thus greatly improving the safety of the device.

[0035] In use, the operator first fixes the two ends of the outer sleeve 2 on the endoscope operating part and the endoscope front end through the first buckle 11 and the second buckle 12 respectively, and then inserts the endoscope and the outer sleeve 2 into the stomach, and when the foreign matter to be cut is found, the operator can first encircle the foreign matter with the sleeve ring 6. When the foreign matter is encircled, the operator can pull and drag the push-pull part 5 through the push-pull rod 10, so that the push-pull part 5 can adjust the size of the sleeve ring 6 while extruding the spring 8 through the positioning block 7 and the telescopic part 4, so that the spring 8 has a certain rebounding force, thereby ensuring that the sleeve ring 6 always tightly grips the calculus, and finally the working surface of the wire saw does not slide, thereby greatly improving the cutting quality of the device. In addition, the size and shape of the sleeve ring 6 can be flexibly adjusted according to actual needs by pulling and dragging the telescopic part 4 and the push-pull part 5 through the push-pull rod 10, which has more advantages than the traditional fixed loop, thereby greatly improving the application range and practicality of the device. Finally, the medical staff can perform linear motion on the encircled calculus or foreign matter, and repeatedly move left and right or up and down, thereby quickly cutting the calculus linearly. Embodiment 2

[0036] Please refer to Figures 2-4 The utility model provides a technical scheme: a calculus and foreign matter wire saw cutting device, including outer sleeve 2, the outer surface of outer sleeve 2 is fixedly connected with first buckle 11 and second buckle 12 respectively, the inside of outer sleeve 2 is provided with inner sleeve 3, the inside of inner sleeve 3 is movably connected with cutting steel wire 15, cutting steel wire 15 includes telescopic part 4, push-pull part 5 and sleeve ring 6, sleeve ring 6 is located at the outside of outer sleeve 2, and one end of telescopic part 4 and push-pull part 5 is fixedly connected with sleeve ring 6, and the other end of telescopic part 4 and push-pull part 5 is provided with handle part 1.

[0037] By adopting the above technical scheme, the device can quickly cut the foreign matter in the stomach through the sleeve ring 6, thereby greatly improving the cutting efficiency of the device.

[0038] In the embodiment of the present application, as shown in Figure 1 and Figure 3 The inside of handle part 1 is provided with two passages, the inside of the two passages is movably connected with positioning pipe 16, and the inside of one of the positioning pipes 16 is movably connected with positioning block 7, one side of positioning block 7 is fixedly connected with telescopic part 4, and spring 8 is arranged on the outer surface between telescopic part 4 and the inner wall of positioning block 7 and positioning pipe 16, one end of positioning block 7 away from spring 8 is fixedly connected with pull bolt 9, the inside of the other passage is movably connected with push-pull rod 10, and one side of push-pull rod 10 extends to the inside of positioning pipe 16 and is fixedly connected with push-pull part 5.

[0039] By adopting the above technical solution, the elastic effect of spring 8 can ensure that the collar 6 always tightly clamps the stone, so that the working surface of the wire saw will not slip, thereby greatly improving the cutting quality of the device.

[0040] In the embodiments of this application, such as Figure 2 As shown, a slot 13 is provided on one side of the outer surface of the handle part 1, and a pull cable 14 is provided inside the slot 13. One end of the pull cable 14 is fixedly connected to the push-pull part 5.

[0041] By adopting the above technical solution, the telescopic part 4 can be quickly stretched using the cable 14.

[0042] In the embodiments of this application, such as Figure 3 As shown, the first buckle 11 and the second buckle 12 are both made of elastic material and are fixedly connected to the endoscope operating part and the endoscope front end, respectively.

[0043] By adopting the above technical solution, this device can quickly and securely connect the outer sleeve 2 to the endoscope, thereby greatly improving the practicality of the device.

[0044] In the embodiments of this application, such as Figure 3 As shown, the collar 6 has a sawtooth-like design.

[0045] By adopting the above technical solution, the sawtooth-like design makes the cutting effect of the collar 6 better.

[0046] In the embodiments of this application, such as Figure 3 As shown, the inner sleeve 3 is a dual-channel conduit, and the inner sleeve 3 is one of the following: a double-lumen plastic tube, a composite tube, a double spring tube, a double metal braided tube, and a double composite braided tube.

[0047] By adopting the above technical solution and utilizing the dual-channel catheter design, the two guidewires can be placed in different channels, thereby avoiding mutual wear between the two guidewires. In addition, the protective function of the inner sleeve 3 and the outer sleeve 2 can prevent the guidewires from causing wear on the endoscope cavity, thus greatly improving the safety of the device.

[0048] In use, the operator first fixes the two ends of the outer sleeve 2 on the endoscope operating part and the endoscope front end through the first buckle 11 and the second buckle 12 respectively, and then inserts the endoscope and the outer sleeve 2 into the stomach. When the foreign matter to be cut is found, the operator can first encircle the foreign matter with the sleeve ring 6. When the foreign matter is encircled, the operator can pull the push-pull part 5 through the pull rope 14, so that the push-pull part 5 can adjust the size of the sleeve ring 6 while extruding the spring 8 through the positioning block 7 and the telescopic part 4, so that the spring 8 has a certain rebounding force, thereby ensuring that the sleeve ring 6 always tightly encircles the calculus, and finally the action surface of the wire saw cannot slide, thereby greatly improving the cutting quality of the device. In addition, the telescopic part 4 and the push-pull part 5 can be pulled through the pull rope 14, so that the shape and size of the sleeve ring 6 out of the ring can be flexibly adjusted according to actual needs, which is more advantageous than the traditional fixed loop, thereby greatly improving the application range and practicality of the device. Finally, the medical staff can perform linear motion on the encircled calculus or foreign matter, and repeatedly move left and right or up and down, thereby quickly cutting the calculus linearly.

Claims

1. A gallstone and foreign body wire saw cutting device comprising an outer cannula (2) characterised in that: The outer surface of the outer sleeve (2) is fixedly connected with a first buckle (11) and a second buckle (12), respectively, the inner part of the outer sleeve (2) is provided with an inner sleeve (3), the inner part of the inner sleeve (3) is movably connected with a cutting steel wire (15), the cutting steel wire (15) comprises an extension part (4), a push-pull part (5) and a sleeve ring (6), the sleeve ring (6) is located outside the outer sleeve (2), one end of the extension part (4) and the push-pull part (5) is fixedly connected with the sleeve ring (6), the other end of the extension part (4) and the push-pull part (5) is provided with a handle part (1), the inner part of the handle part (1) is provided with two channels, the inner part of the two channels is movably connected with a positioning tube (16), and the inner part of one of the positioning tubes (16) is movably connected with a positioning block (7), one side of the positioning block (7) is fixedly connected with the extension part (4), and the outer surface of the extension part (4) between the positioning block (7) and the inner wall of the positioning tube (16) is provided with a spring (8), one end of the positioning block (7) away from the spring (8) is fixedly connected with a pull bolt (9), the inner part of the other channel is movably connected with a push-pull rod (10), one side of the push-pull rod (10) extends to the inner part of the positioning tube (16) and is fixedly connected with the push-pull part (5).

2. A stomach stone and foreign body wire saw cutting device according to claim 1, characterized in that: The outer surface of the handle part (1) is provided with a notch (13), the inner part of the notch (13) is provided with a pull rope (14), one end of the pull rope (14) is fixedly connected with the push-pull part (5).

3. A stomach stone and foreign body wire saw cutting device as defined in claim 1, wherein: The first buckle (11) and the second buckle (12) are both made of elastic material and are fixedly connected with the inner mirror operating part and the front end of the inner mirror, respectively.

4. A stomach stone and foreign body wire saw cutting device as defined in claim 1, wherein: The sleeve ring (6) is designed in imitation of sawtooth.

5. A stomach stone and foreign body wire saw cutting device as defined in claim 1, wherein: The inner sleeve (3) is a double-channel catheter, and the inner sleeve (3) is one of a double-cavity plastic tube, a composite tube, a double-spring tube, a double-metal braided tube and a double-composite braided tube.

Images