CN211583377U - Vein resectoscope with camera device - Google Patents

Abstract

The utility model discloses a vein resectoscope with camera device, including outer tube and camera, the outer tube has the mouth of peeling off, peels off a mouthful lateral wall and opens and have the through-hole, and the camera is arranged in the through-hole. The vein rejection process can be observed in real time, and adjustment can be made in real time according to the monitored condition.

Description

Vein resectoscope with camera device

Technical Field

The utility model relates to a surgical equipment field, more specifically the saying so, it relates to a vein resectoscope with camera device.

Background

The following background is provided to aid the reader in understanding the present invention and is not admitted to be prior art.

The phlebotomy is a procedure for treating varicose veins by excising unwanted varicose veins or bypass veins causing varicose veins and veins forming fistulas on the arms or legs using a phlebotomy apparatus. The vein resectoscope can reduce the pain, complication and disability possibility of the patient caused by the operation to the minimum, and is suitable for vascular surgery, general surgery and cosmetology department.

The existing vein resectoscope does not have the function of observing the vein in real time and cannot be adjusted according to the vein removing process.

Disclosure of Invention

An object of the utility model is to provide a vein exciser with camera device can the rejection process of real-time observation vein to can make the adjustment in real time according to the condition of monitoring.

The utility model provides a technical scheme that its technical problem adopted is: vein resectoscope with camera device includes the outer tube, and the outer tube has peels off the mouth, still includes the camera, peels off a mouthful lateral wall and opens there is the through-hole, and the camera is located the through-hole.

Preferably, the through hole extends toward the peeling port end, and the camera is fixed to the connecting wall of the through hole by adhesion.

Preferably, the outer pipe is externally sleeved with a coating pipe, and a lead connected with the camera is coated between the outer pipe and the coating pipe.

Preferably, the material of the coating tube is a heat shrinkable film.

Preferably, the side wall of the outer pipe is provided with a picking hole, and the conducting wire avoids the picking hole.

Preferably, the lead is disposed opposite to the knock-out hole.

Preferably, the wire is connected with a display terminal.

The utility model has the advantages that: the vein resectoscope is provided with a camera device, so that the vein removing process can be observed in real time, and the vein resectoscope can be adjusted in real time according to the monitored condition.

Drawings

FIG. 1 is a schematic view of one form of vein resector.

FIG. 2 is an exploded schematic view of a vein resector.

Fig. 3 is a schematic view of the push block in the handle.

Fig. 4 is a schematic view of the inner tube and the push block.

Fig. 5 is a schematic view of the push block.

Fig. 6 is a schematic view of the upper housing.

Fig. 7 is a schematic view of the external structure of the cover.

Fig. 8 is a schematic view of the internal structure of the cover.

Fig. 9 is a schematic view of the internal structure of the loading body.

Fig. 10 is an external structure view of the push button.

Fig. 11 is a schematic view of the inner structure of the push button.

Fig. 12 is a schematic structural view of the lock mechanism.

Fig. 13 is a cross-sectional view taken along line a-a of fig. 12.

Fig. 14 is a schematic view of the connection of the handle to the outer tube.

Fig. 15 is a schematic view of the orifice of the inner tube.

Fig. 16 is a schematic view of the connection of the handle to the inner tube.

Fig. 17 is a schematic structural view of the nut.

Fig. 18 is a schematic view of the connection of the inner tube, nut and tail tube.

Fig. 19 is a cross-sectional view taken along line B-B of fig. 18.

Fig. 20 is a schematic configuration diagram of the image pickup apparatus.

FIG. 21 is a schematic diagram of another form of vein resector.

FIG. 22 is an exploded view of a resectoscope.

Fig. 23 is a schematic view of the connection of the inner tube and the push block.

Fig. 24 is an upper housing of the push block.

Fig. 25 is a lower housing of the push block.

Fig. 26 is a schematic structural view of the cover.

FIG. 27 is a schematic view of the structure of the carrier.

Fig. 28 is a top view of the push button.

Fig. 29 is a schematic bottom structure view of the push button.

Fig. 30 is a schematic view of the connection of the handle to the outer tube.

Fig. 31 is a schematic structural view of the sleeve.

FIG. 32 is a schematic view of the connection of the handle to the inner tube.

The labels in the figure are: the device comprises an outer tube 1, a stripping opening 101, a removal hole 102, an anti-moving piece 103, a convex ring 1031, a sleeve 104, a stop ring 1041 and a bayonet 105; the inner tube 2, a positioning part 201, a medicine output port 202 and an annular cutter 203; the push block 3, the connecting part 301, the upper ring 3011, the lower ring 3012, the upper shell 302, the positioning concave edge 3021, the lower shell 303, the positioning flange 3031, the front end through hole 304, the middle through hole 305, the rear end through hole 306, the limiting groove 307, the limiting plate 308, the containing cavity 309, the guide channel 311, the male buckle 312, the female buckle 313 and the convex column 314; the handle 4, the cavity 401, the first through hole 402, the second through hole 403, the cover 404, the limit through hole 4041, the limit plate 4042, the guide plate 4044, the through groove 4045, the loading body 405, the guide limit plate 4052, the precession gap 4053, the guide limit block 4054, the limit protrusion 4055, the reinforcing rib 406, the first reinforcing rib 4061, the second reinforcing rib 4062, the pushing hole 407, the straight section 4071, the precession section 4072, the sliding groove 408, the groove wall 409, the latch 410, the notch 411, the guide groove 412, the slider 413, the extension tube 414, the screw cap 415, 416, the latch 417, the boss 418, the anti-slip groove 419, the cover latch 420, and the loading body latch 421; the push button 5, the clamping groove 501, the clamping plate 5011, the panel 502, the protrusion 503, the forward pushing part 504, the backward pushing part 505, the abutting part 506, the reinforcing block 507 and the side wall 508; a locking mechanism 6, a pressure plate 601, a pressing portion 6011, a contact portion 6012, a reset baffle 602, a fixed section 6021, a transition section 6022, a downward pressing section 6023, a locking member 603, an accommodating hole 604, and a hole 605; the tail pipe 7, a nut 701, an outer channel 702, an inner channel 703, an end plate 704, a liquid inlet hole 705, a sealing ring 706, a buffer groove 707, a convex strip 708, an extension end 7081, a connecting section 709, a moving section 710, a tangent plane 711, a limiting cap 712, an anti-slip strip 7121, a stopping side lug 713 and a limiting barrier 7101; the camera device 8, the camera 801, the through hole 802, the cladding pipe 803, the conducting wire 804 and the display end 805.

Detailed Description

The structures referred to in the present invention or these terms of art used are further described below. These illustrations are merely exemplary of how the present invention may be implemented and are not intended to limit the present invention in any way. In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left" and "right" 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 indicated position or element must have a specific orientation, be constituted in a specific orientation, and be operated, and thus, are not to be construed as limitations of the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The two-tube phlebotomizer will now be described in detail with reference to FIGS. 1-32.

As shown in fig. 1 to 20, a two-tube phlebotomy apparatus in one form comprises an outer tube 1 and an inner tube 2, the outer tube 1 is sleeved outside the inner tube 2, the inner tube 2 has a cutting end, a drug input end and a drug output end, the cutting end and the drug output end are the same end, wherein the drug output end is front and the drug input end is rear.

Cooperation of push block and inner tube

As shown in fig. 3, the inner tube 2 has a positioning portion 201, the positioning portion 201 being located between the cutting end and the drug input end, the cutter being provided with a push block 3, the push block 3 being provided with a connecting portion 301 cooperating with the positioning portion 201, see fig. 3-6. Adopt location portion 201 and connecting portion 301 complex mode, drive inner tube 2 through ejector pad 3 and make rectilinear movement and rotation, not only be favorable to the location installation of inner tube 2, reduce the complexity of equipment, reduce labour cost, can avoid the bacterial infection risk that bonding thing such as glue arouses moreover.

As shown in fig. 4, the positioning portion 201 is a recess 201, and the connecting portion 301 is a bump 301 matching with the recess. The recess is formed by stamping, so that the processing technology is simplified, and the processing efficiency is improved. It should be noted that the depth of the recess 201 is not limited, and it is only necessary that the inner tube 2 and the push block 3 do not slip. Preferably, the recess 201 includes two intersecting planes, and the included angle is acute. The acute-angled recess can tightly catch the protrusion 301.

As shown in fig. 4, there are at least two positioning portions 201, the positioning portions 201 are independent from each other, the positioning portions 201 are arranged in a circle array or in a symmetrical manner with respect to the inner tube 2, and the connecting portions 301 correspond to the positioning portions 201 one to one. At least two positioning parts 201 are arranged, so that the connection between the inner tube 2 and the push block 3 is more tight, and the inner tube 2 and the push block 3 are ensured not to be separated in the screwing process. Of course, the number of the positioning portions 201 is not limited, and it is only necessary to satisfy the fastening between the inner tube 2 and the push block 3.

As shown in fig. 5 and 6, the push block 3 is provided with a front end through hole 304, a middle through hole 305 and a rear end through hole 306, the front end through hole 304, the middle through hole 305 and the rear end through hole 306 are all annular holes, and the protrusion 301 is provided in the front end through hole 304 and the middle through hole 305. The front end perforation 304 and the rear end perforation 306 just allow the inner tube 2 to pass through, and the inner tube 2 is restricted in the front end perforation 304 and the rear end perforation 306 to prevent it from moving left and right.

As shown in fig. 6, the pushing block 3 has two guiding channels 311, the two guiding channels 311 are respectively located at two sides of the middle through hole 305, and the front end through hole 304, the guiding channel 311, the middle through hole 305 and the rear end through hole 306 are sequentially communicated and located on the same straight line. Preferably, the middle through hole 305 is located at the center of the push block 3.

As shown in fig. 4, the push block 3 has a cavity 309 for accommodating the inner tube 2, and the connecting portion 301, the annular hole and the guide passage 311 are located in the cavity 309.

As shown in fig. 4, the push block 3 is provided with a buckle, the buckle comprises a male buckle 312 and a female buckle 313, the male buckle 312 is located in the lower shell 303, and the female buckle 313 is located in the upper shell 302. Go up casing 302 and lower casing 303 through the buckle lock, the installation is dismantled conveniently. Preferably, the female button 313 is a through hole. The wall thickness of the push block 3 is smaller, the female buckle is arranged in a through hole form, the male buckle 312 can be clamped tightly, and the upper shell 302 and the lower shell 303 are fastened and connected together. Preferably, two buckles are symmetrically arranged along the axial direction of the push block 3. Preferably, two buckles that axial symmetry set up are a set of, and ejector pad 3 is equipped with two sets of buckles. The connecting tightness of the upper shell 302 and the lower shell 303 is improved, and the upper shell and the lower shell are prevented from being separated during transportation or operation.

As shown in fig. 4 and 6, the upper housing 302 is provided with a positioning concave rim 3021, and the lower housing 303 has a positioning flange 3031 that mates with the positioning concave rim 3021. The positioning flange 3031 and the positioning concave edge 3021 facilitate the covering of the upper shell 302 and the lower shell 303. Preferably, a positioning concave rim 3021 is provided along the edge of the upper housing 302, a positioning flange 3031 is provided along the edge of the lower housing 303, and the positioning flange 3031 corresponds to the positioning concave rim 3021.

As shown in fig. 4 to 6, the push block 3 is cylindrical, and the upper housing 302 and the lower housing 303 are each semi-cylindrical.

Handle (CN)

The phlebotomy apparatus includes a handle 4, see fig. 7-9, and the procedure is performed by grasping the handle 4, see fig. 8-9.

As shown in fig. 9, the handle 4 has a cavity 401, a first through hole 402 and a second through hole 403, the first through hole 402 is in front, the second through hole 403 is in back, the first through hole 402, the cavity 401 and the second through hole 403 are communicated and located on the same straight line, and the push block 3 is suspended in the cavity 401 by the support of the inner tube 2.

As shown in fig. 2, 7, 8 and 9, the handle 4 includes a cover 404 and a carrier 405, the cover 404 is on the top, the carrier 405 is on the bottom, and the cover 404 and the carrier 405 are connected by snap-fit. The installation and the disassembly are convenient. Preferably, the locking mechanism includes a cover latch 420 and a carrier latch 421, the cover latch 420 is disposed on the cover 404, and the carrier latch 421 is disposed on the carrier 405.

As shown in fig. 9, the loading body 405 is provided with a guide stopper. Preferably, the guide stoppers are formed by guide stoppers 4052 positioned on both sides of the inner wall of the loading body 405, and a precession gap 4053 for accommodating the push block 3 is provided between the guide stoppers 4052. Firstly, the inner tube 2 is a steel tube, the finished steel tube is inevitably bent to a certain extent, the inner tube is deformed and bent due to stress (for example, deformation is caused by stress, humidity and temperature field change), the push block 3 is suspended in the cavity by means of the support of the inner tube, the push block 3 is deviated due to the bending of the inner tube 2, secondly, the push block 3 is deformed and bent due to stress, and the factors all cause the push block to deviate from an ideal straight path, therefore, the push block 3 is limited in the screwing gap 4053, so that the push block can be further ensured to keep basic straight line motion, and the convex column 314 can be prevented from being disengaged and failed due to instant vibration in the transportation process, wherein the failure means that the push block is controlled by losing the push button 5 and can move left and right in the cavity. It should be noted that the size of the precession gap can allow the push block to move, and the push block 3 cannot be clamped; moreover, the position of the guide limit portion needs to be within the moving range of the push block 3.

As shown in fig. 9, a limiting protrusion 4055 is disposed at the bottom of the inner wall of the loading body 405, and the limiting protrusion 4055 is located behind the end of the pushing block 3. The limiting protrusion 4055 can prevent the pushing block 3 from being pushed excessively, ensure the pushing block to move within a certain range, and avoid the increase of the front and rear freedom degree caused by the disengagement of the convex column 314.

As shown in fig. 8, a limiting through hole 4041 is formed at the top of the inner wall of the cover 404, and the limiting through hole 4041 is in clearance fit with the inner tube 2. The limit through hole 4041 can prevent the push block from being excessively pushed, and ensure the push block to move within a certain range. Preferably, the limit through hole 4041 is opened on the limit plate 4042, and the limit plate 4042 is located behind the end of the push block 3.

As shown in fig. 8, a pipe guide is provided on the top of the inner wall of the cover 404. Preferably, the tube guide is formed by two sets of guide plates 4044 arranged in parallel, and the two sets of guide plates 4044 form a through groove 4045 through which the inner tube passes. The inner pipe 2 passes through the limit perforation 4041 and the through groove 4045, so that the inner pipe 2 is prevented from being deformed and bent to cause deviation of a straight path.

As shown in fig. 8 and 9, the cover 404 and the mounting body 405 are each provided with a reinforcing rib 406. The handle 4 is made of plastic and is provided with reinforcing ribs to ensure the strength and rigidity of the handle without thickening the wall of the handle 4. As shown in fig. 8, the reinforcing ribs provided on the top of the inner wall of the cover 404 are two orthogonal sets of plates, one end of each set of plates is fixed to the limiting plate 4042, and both ends of each set of plates are fixed to the guide plates 4044. As shown in fig. 8, the bottom of the inner wall of the carrier 405 is provided with a first rib 4061, and the first rib 4061 is located below the push block 3. Preferably, the bottom of the inner wall of the loading body 405 is provided with a second rib 4062, and the second rib 4062 is a U-shaped plate with a through hole. Preferably, the second reinforcing rib 4062 is provided in plurality in the axial direction of the handle 4. It should be noted that the arrangement form of the reinforcing rib is not limited to the above example.

As shown in fig. 7, the handle 4 is smooth and curved, so that the handle is convenient to hold by hand and is ergonomic. The surface of the handle is provided with an anti-slip groove which plays a role of anti-slip.

Push button

The vein resectoscope is provided with a push button 5, the push button 5 is pushed, the inner tube 2 is screwed in to cut off veins, and the structure of the push button 5 is shown in figures 10-11.

As shown in fig. 2, 5 and 11, the upper housing 302 of the push block 3 is provided with a convex pillar 314, the cover 404 is provided with a push hole 407 through which the convex pillar 314 passes, the push hole 407 comprises a straight section 4071 and a screwing section 4072, the push button 5 is provided with a clamping groove 501 matched with the convex pillar 314, and the length of the clamping groove 501 is not less than the rotation arc length of the screwing section 4071. The convex column 314 passes through the pushing hole 407 and is positioned in the clamping groove 501 to push the push button 5, when the push button moves along the pushing hole 407, the convex column 314 moves in the clamping groove 501 with a certain length at the same time, the moving path of the push button 5 is changed from a curve to a straight line, and the sliding-off is avoided in the pushing process. The straight section 4071 and the precession section 4072 have a certain included angle, preferably an included angle ranging from 135 degrees to 150 degrees, and the inner tube 2 moves linearly in the straight section 4071 and rotates in the precession section 4072, which is beneficial to fully cutting off veins.

As shown in fig. 10, the push button 5 includes a face plate 502, and a clip groove 501 is opened along a circumferential direction of the face plate 502. In the process of pushing the push button 5, the convex column 314 is always located in the clamping groove 501.

As shown in fig. 11, two parallel clamping plates 5011 are provided at the bottom of the panel 502, and the two clamping plates 5011 form a clamping groove 501 for allowing the convex column 314 to move. Thus, the boss 314 moves in the nip groove 501 formed by the two nip plates 5011.

As shown in fig. 11, a reinforcing block 507 is provided between the face plate 502 and the clip plate 5011. The push button 5 is made of plastic, and a reinforcing block 507 is provided to ensure the strength and rigidity of the push button 5 without thickening the wall of the push button 5. Preferably, two reinforcing blocks 507 are arranged between each clamping plate 5011 and the panel 502, and the two reinforcing blocks 507 are respectively arranged on two sides of the clamping plate 5011. The strength and rigidity of the push button 5 are further improved.

As shown in fig. 10, the panel 502 includes a front pushing portion 504 and a rear pushing portion 505, the front pushing portion 504 and the rear pushing portion 505 are separated by a pushing portion 506, the pushing portion 506 is a protrusion, and both sides are concave. Pushing the front pushing part 504 and the push button 5 to advance; the push-back portion 505 is pushed, and the push button 5 retreats. Whether pushing the front pushing part 504 or the back pushing part 505, the fingers need to abut against the abutting part 506 for easy pushing. Preferably, the surface of the rear pushing part 505 is provided with an anti-slip bump. The anti-skid rubber is used for skid prevention.

As shown in fig. 7, the top of the cover 404 is provided with a sliding slot 408 for accommodating the push button 5, a slot wall 409 is provided along the circumference of the sliding slot 408, and the length of the sliding slot 408 is greater than that of the panel 502. The push button 5 is located in the slide groove 408 and moves within a certain range along the slide groove 408.

As shown in fig. 10 and 11, the push button 5 is provided with a side wall 508, the side wall 508 is arranged along the circumference of the panel 502, and the clip groove 501 is located in a space surrounded by the side wall 508. Preferably, the bottom of the side wall 508 is provided with a sliding block, and the side wall of the sliding chute is provided with a guide groove 412 matched with the sliding block. The guide groove 412 has a guide function for the movement of the push button 5 while preventing the push button 5 from being detached from the cover 404.

Locking mechanism

As shown in fig. 12-13, the pusher 504 is provided with a locking mechanism 6. Only when the locking mechanism 6 is unlocked, the push button 5 can be pushed in, so that misoperation in the operation process is avoided. The misoperation condition comprises the condition that when the outer tube picks out the vein, the push button 5 is pushed by mistake to cut the vein which is not completely peeled off, and the like, so that the operation time is prolonged, and the pain degree of the patient is increased.

As shown in fig. 12 and 13, the lock mechanism 6 includes a pressing plate 601, a reset shutter 602, and a lock member 603, the pressing plate 601 and the lock member 603 are provided on the panel 502, the reset shutter 602 is provided on the handle 4, the reset shutter 602 blocks the lock member 603 when locked, and the pressing plate 601 moves the reset shutter 602 downward when unlocked, and the lock member 603 is offset from the reset shutter 602. When the lock is in the initial state, the reset baffle 602 blocks the locking member 603, and the push button 5 cannot move; when unlocking, the pressing plate 601 is pressed to move the reset baffle 602 downward, the reset baffle 602 is staggered with the locking component 603, and the push block 3 moves. Wherein, the pressing plate has the function of automatic return after being pressed.

As shown in fig. 13, the pressing plate 601 includes a pressing portion 6011 and a contact portion 6012, the forward pushing portion 504 is provided with an accommodating hole 604 for accommodating the pressing portion 6011, a hole wall is fixed to the pressing portion 6011, a portion of the pressing portion 6011 is exposed out of the accommodating hole 604, the contact portion 6012 is located at the bottom of the pressing portion 6011, and the reset baffle 602 is located below the contact portion 6012. The pressing portion 6011 is partially exposed out of the accommodating hole 604 for facilitating pressing. When the pressing portion 6011 is pressed, the contact portion 6012 contacts the reset shutter 602 and presses down the reset shutter 602. Preferably, the pressing portion 6011 and the contacting portion 6012 are integrally molded. Preferably, the shape of the accommodation hole 604 matches the outer shape of the pressing portion 6011. The area of the accommodating hole 604 is larger than that of the pressing portion 6011, so as to allow the pressing portion 6011 to move up and down in the accommodating hole 604.

As shown in fig. 13, the contact portion 6012 is a trapezoidal plate, and an end surface fixed to the pressing portion 6011 is large, and an end surface facing the reset shutter 602 is small. The rigidity of the contact part 6012 is favorably enhanced, the contact part 6012 is prevented from being broken during pressing, meanwhile, the contact area with the reset baffle 602 is small, and the pressing effect on the reset baffle 602 is improved.

As shown in fig. 13, the contact portion 6012 is in point contact with the reset shutter 602. Thus, the force-receiving area can be further reduced, and the pressing action on the reset baffle 602 can be improved. Preferably, the end surface of the contact portion 6012 is hemispherical, conical, or truncated cone. Of course, the end surface shape of the contact portion 6012 is not limited to the above example, and may be a spherical shape, a truncated cone shape, or an irregular dot shape.

As shown in fig. 13, the contact portion 6012 is spaced apart from the reset shutter 602. In the initial state, the contact portion 6012 is spaced apart from the reset shutter 602, and the contact portion 6011 contacts the reset shutter 602 only by pressing the pressing plate 601. It should be noted that, when the distance between the contact portion 6012 and the reset baffle 602 needs to be enough to press the pressing plate 601, the contact portion 6012 can contact the reset baffle 602 and move the reset baffle 602 downward until the push button 5 can be pushed.

As shown in fig. 13, the pressing portion 6011 is an inclined flat plate. The pressing portion 6011 has a certain inclination, so that pressing is facilitated. Preferably, the bottom edge of the pressing portion 6011 is provided with a convex ring. Preferably, the surface of the pressing portion 6011 is provided with a nonslip protrusion. The antiskid bulges play an antiskid role.

As shown in fig. 13, the locking member 603 is provided on the side of the panel 502, and the bottom end of the side of the panel 502 is lower than the top end of the reset shutter 602. In an initial state, the bottom end of the locking component 603 is lower than the top end of the reset baffle 602, so that the push button 5 is prevented from moving, and the push button can move only when the pressing plate 601 is pressed and the bottom end of the locking component 603 is higher than the top end of the reset baffle 602. When the side wall is arranged along the circumference of the panel 502, the locking member 603 is a part of the side wall.

As shown in fig. 8, the cover 404 of the handle 4 is provided with a hole 605 for receiving the reset bar 602, and the reset bar 602 protrudes from the hole 605. Because the locking member 603 is higher than the top end of the cover, in the initial state, only the reset baffle 602 protrudes from the hole 605, and the reset baffle 602 can prevent the locking member 603.

As shown in fig. 13, the reset baffle 602 includes a push down section 6023 that protrudes from the bore 605. When pressed, the contact portion 6012 comes into contact with the pressed section 6023. Preferably, the reset baffle 602 comprises a fixed section 6021 and a transition section 6022, the fixed section 6021, the transition section 6022 and the downward pressing section 6023 are sequentially connected, the fixed section 6021 is fixed with the hole wall, the transition section 6022 is an inclined plane, both the fixed section 6021 and the downward pressing section 6023 are flat surfaces, and the downward pressing section 6024 protrudes out of the fixed section 6021.

As shown in fig. 7, both the push hole 407 and the hole 605 are located in the slide slot 408.

Mounting of handle to outer tube

As shown in fig. 1 and 19, the outer tube 1 is a cylindrical elongated steel tube, and has a peeling port 101 at one end, the peeling port 101 is flared outward, and the flared peeling port 101 is easy to remove a vein. The pipe wall of the outer pipe 1 is provided with a picking hole 102, and the picking hole 102 is close to the stripping opening 101. The outer tube 1 and the size of the reject hole 102 are both such that the vein is allowed to pass through.

As shown in FIG. 14, the outer tube 1 has a bayonet 105 formed on the wall thereof, and the handle 4 has a claw 417 engaged with the bayonet 105. The claws 417 are tightly attached to the bayonets 105 to fix the outer tube 1.

As shown in fig. 14, the jaw 417 is vertically disposed at one side portion, and the opposite side portion is attached to the outer wall of the outer tube 1. The bayonet 105 is formed by cutting off the part of the outer tube 1 in the vertical direction, the vertically arranged side part is just attached to the bayonet 405, and the opposite side part is attached to the outer wall of the outer tube 1, so that the outer tube is embraced by the clamping jaws 417, and the purpose of fixing the outer tube 1 is realized.

As shown in fig. 14, the outer tube 1 is provided with two sets of bayonets 105, the handle 4 is provided with two sets of claws 417, and the bayonets 105 correspond to the claws 417 one by one. The installation tightness between the handle 4 and the outer tube 1 is improved. Preferably, the two sets of bayonets 105 are open on the same side of the wall of the outer tube 1.

As shown in fig. 14, the handle 4 has an extension tube 414, and the claw 417 is provided on the inner wall of the extension tube 414.

As shown in fig. 2, the cover 404 is fixedly connected to the carrier 405 by a screw cap 415, the inner wall of the screw cap 415 is provided with an internal thread, and the outer wall of the extension tube 414 is provided with an external thread matching with the internal thread. By tightening the screw cap 415, the cover 404 and the carrier 405 are fixed together and are not moved or pulled out by an external operation.

Mounting of handle to inner tube

As shown in fig. 15, the inner tube 2 is a cylindrical elongated steel tube, the inner tube 2 is in clearance fit with the outer tube 1, the inner tube 2 has a drug delivery outlet 202, the drug delivery outlet 202 is welded with a horn-shaped annular cutter 203, the annular cutter 203 is located at the rear end of the picking hole 102 before operation, the vein extraction is not hindered, and the push button 5 pushes the annular cutter 203 to the picking hole 102 to cut off the stripped vein when cutting off the vein.

As shown in fig. 16-17, the resectoscope comprises a tail tube 7 and a nut 701, the nut 701 comprises an outer channel 702 and an inner channel 703, the inner channel 703 is in interference fit with the connecting section of the inner tube 2, the outer channel 702 is in threaded fit with the tail tube 7, and the tail section of the inner tube 2 is located in the tail tube 7. The inner pipe 2 and the tail pipe 7 are connected without glue, so that the assembly process is simplified, and the labor cost is reduced. It should be noted that, when the connecting section is in front and the tail section is in back, and the pushing block 3 is pushed, the tail pipe 7 can move or rotate linearly along the handle along with the inner pipe 2, and the second through hole 403 is used for the outer pipe 1 to pass through.

As shown in fig. 19, an end plate 704 is disposed on the inner wall of the tail tube 7, the end plate 704 is provided with a liquid inlet hole 705, the drug input end is communicated with the liquid inlet hole 705, the liquid inlet hole 705 is aligned with the inner tube 2, a sealing ring 706 is disposed between the tail tube 7 and the inner tube 2, and the sealing ring 706 is located behind the inner channel 703. The tumescent fluid is injected into the fluid inlet 705 and flows through the drug inlet port and into the surgical site through the inner tube 2. When the swelling liquid is injected, the swelling liquid flows into the gap between the tail tube 7 and the inner tube 2, and the sealing ring 706 is arranged to prevent the swelling liquid from flowing out, so that the swelling liquid can be sealed. It is noted that the drug input port is located at the drug input end.

As shown in fig. 17, two sets of buffer grooves 707 are axially formed in the inner passage 703, and the two sets of buffer grooves 707 are disposed opposite to each other. Since the inner channel 703 is in interference fit with the inner tube 2, the buffer groove 707 is favorable for buffering the extrusion force caused by installation and also for relieving the stress generated by the inner tube 2.

As shown in fig. 16, a nut 701 is located in the cavity 401. Preferably, the length of the inner channel 703 is less than the length of the outer channel 702.

As shown in fig. 19, a rib 708 is provided on the inner wall of the tail pipe 7, and the rib 708 extends to be fixed to the end plate 704. Preferably, the plurality of convex strips 708 are distributed at equal intervals along the circumferential direction of the cavity wall of the tail pipe 7, and the gap enclosed by the plurality of convex strips 708 just accommodates the inner pipe 2. Preferably, the ribs 708 have four ribs. The number of the convex strips 708 to be provided is not limited to the four, but may be an even number such as 2 or 6. Preferably, the rib 708 has an extended end that is wedge-shaped. The wedge-shaped convex strips are easy to allow the inner pipe to enter the gap and are not easy to damage the inner pipe.

As shown in fig. 19, the tailpipe 7 has a connecting section 709, the outer surface of the connecting section 709 having threads that mate with the inner wall of the outer passageway 702.

As shown in fig. 19, the tail pipe 7 has a moving section 710 connected to the connecting section 709, and the moving section 710 extends into the second through hole 403. When the inner pipe 2 moves, the tail pipe 7 is driven to move back and forth in the second through hole 403.

As shown in fig. 16, the moving section 710 has cut surfaces 711, and the cut surfaces 711 are arranged in two sets axially symmetrically along the tail pipe 7. The tail pipe 7 is conveniently fixed, and the nut 701 and the tail pipe 7 are screwed and installed.

As shown in fig. 7 and 16, the moving section 710 is provided with a stopper cap 712. The movement of the inner tube 2 drives the tail tube 7 to move, and the limit cap 712 prevents the inner tube 2 from moving excessively. Preferably, the limiting cap 712 is in a circular truncated cone shape, a boss 418 extends from the end of the handle 4, and the boss 418 is in a circular truncated cone shape matched with the limiting cap 712. The tail pipe 7 moves to the position that the limiting cap 712 is jointed with the boss 418, and the limiting cap 712 can prevent the tail pipe 7 from moving further forwards. Preferably, the surface of the limiting cap 712 is provided with a plurality of anti-slip strips 7121, and the anti-slip strips 7121 are arranged at equal intervals along the circumference of the limiting cap 712 for anti-slip.

As shown in fig. 16, the moving section 710 has two sets of stopper lugs 713, and the stopper lugs 713 are arranged axially symmetrically along the tail pipe 7. The tail pipe 7 is conveniently fixed, and the tail pipe 7 and the injector are screwed up and installed.

Image pickup apparatus

As shown in fig. 1, the vein resectoscope is provided with a camera device 8, which can observe the vein removal process in real time and can be adjusted in real time according to the monitored condition.

As shown in fig. 20, the imaging device 8 includes a camera 801, and a through hole 802 for accommodating the camera 801 is opened in a side wall of the peeling opening 101. It should be noted that, since the side wall of the peeling opening 101 is required to allow the camera 802 to pass through, the flaring width of the peeling opening 101 is slightly increased to provide enough space for vein access. Preferably, the through hole 802 extends towards the opening end of the peeling opening 101, and the camera 801 is adhered and fixed with the connecting wall 8021 of the through hole 802. The through hole 802 has a certain wall area, and improves the adhesion and fixation of the camera 801 and the outer tube 1. The bonding medium of the camera 801 and the through hole 802 can be glue. Preferably, the camera 801 is flush with the mouth end of the stripping port 101.

As shown in fig. 20, the outer tube 1 is fitted with a coating tube 803, and a lead wire 804 having one end connected to the camera 801 is coated between the outer tube 1 and the coating tube 803. The coating tube 803 fixes the lead 804 between the outer tube 1 and the coating tube 803, and prevents the camera 801 from falling off by pulling the lead 804.

The coating tube 803 is made of a heat shrinkable film. The heat shrinkable film is thinner, so that the pain degree of a patient is not increased.

As shown in fig. 20, the wire 804 avoids the ejection hole 102. Avoiding the ejection hole 102 without interfering with the ejection of the vein.

As shown in fig. 20, the wire 804 is disposed opposite the knock-out hole 102.

As shown in fig. 1, one end of the wire 804 is connected to a display terminal 805. The surgeon can observe the surgical procedure in real time according to the display 805.

The utility model also provides a two tubular vein excisers of another form, including outer tube 1, ejector pad 3, push button 5 and inner tube 2, the outer tube 1 cover is located the inner tube 2 outside, and inner tube utensil 2 has excision end, drug input end and drug output end, and excision end and drug output end are same end, and wherein, the drug output end is preceding, and the drug input end is the back, see figures 21-32.

Cooperation of push block and inner tube

As shown in fig. 23, 24 and 25, the inner tube 2 has a positioning portion 201, and the push block 3 is provided with a connecting portion 301 that engages with the positioning portion 201. Specifically, the positioning portion 201 is an annular groove, and the connecting portion 301 is an annular ring matched with the annular groove 201. Adopt location portion 201 and connecting portion 301 complex mode, not only be favorable to the location installation of inner tube 2, reduce the complexity of equipment, reduce labour cost, can avoid the bacterial infection risk that bonding material such as glue arouses moreover, still make things convenient for the dismantlement, the change, wash and the maintenance to inner tube 2. It should be noted that, the annular groove 201 is formed by a stamping process, and the manufacturing method is simple, capable of mass production and low in cost. It is understood that the number of the annular grooves 201 is not limited.

As shown in fig. 24 and 25, the connecting portion 301 includes an upper ring 3011 and a lower ring 3012, and the upper ring 3011 and the lower ring 3012 surround to form an annular ring enclosing the annular groove 201. The push block 3 comprises an upper housing 302 and a lower housing 303, the upper ring 3011 being located inside the upper housing 302 and the lower ring 3012 being located inside the lower housing 303. Preferably, the annular ring is located at the center of the push block 3.

As shown in fig. 24 and 25, the push block 3 is provided with a front end perforation 304 and a rear end perforation 306, the annular ring 301 is located between the front end perforation 304 and the rear end perforation 306, the front end perforation 304 and the rear end perforation 306 are both annular holes matched with the inner tube 2, and the front end perforation 304, the annular ring 301 and the rear end perforation 306 are located on the same straight line. The front end perforation 304 and the rear end perforation 306 just allow the inner tube 2 to pass through, and the inner tube 2 is restricted in the front end perforation 304 and the rear end perforation 306 to prevent it from moving left and right.

As shown in fig. 24 and 25, the push block 3 is provided with a stopper groove 307 therein. The inner pipe 2 passes through the stopper groove 307, and the stopper groove 307 restricts the left and right degrees of freedom of the inner pipe 2. The stopper groove 307 is formed by two sets of stopper plates 308 fixed to the upper case 302, and a gap forming the stopper groove 307 is provided between the two sets of stopper plates 308. Here, it should be noted that the clearance is the limiting groove 307. Preferably, two sets of the limiting grooves 307 are symmetrically arranged along the connecting portion 301, so as to further ensure the linear movement of the inner tube 2.

As shown in fig. 24 and 25, the push block 3 has a cavity 309 for accommodating the inner tube 2, and the connecting portion 301 and the limiting groove 307 are both located in the cavity 309.

Handle (CN)

In this form of exciser, the handle comprises a cover 404 and a loading body 405, the handle 4 has a cavity 401, a first through hole 402 and a second through hole 403, the first through hole 402, the cavity 401 and the second through hole 403 are communicated and positioned on the same straight line, and the push block 3 is suspended in the cavity 401 by the support of the inner tube 2, wherein the first through hole 402 is in front and the second through hole 403 is in back, see fig. 26 and 27. The handle 4 comprises a cover 404 and a loading body 405, wherein the cover 404 is arranged on the upper part, the loading body 405 is arranged on the lower part, and the cover 404 and the loading body 405 are buckled and connected through buckling positions. The installation and the disassembly are convenient. Preferably, the locking mechanism includes a cover latch 420 and a carrier latch 421, the cover latch 420 is disposed on the cover 404, and the carrier latch 421 is disposed on the carrier 405.

As an embodiment, the loading body 405 is provided with a guiding limiting part, the guiding limiting part is formed by guiding limiting blocks 4054 at two sides of the inner wall of the loading body, and a screwing gap 4053 for accommodating the pushing block 3 is formed between the guiding limiting blocks 4054, as shown in fig. 27. Specifically, two relative direction stopper 4054 are a set of, are equipped with multiunit direction stopper 4054, and multiunit direction stopper 4054 is equidistant distribution.

In one embodiment, as shown in fig. 26 and 27, the cover 404 and the carrier 405 are each provided with a reinforcing rib 406. The handle 4 is made of plastic and is provided with reinforcing ribs to ensure the strength and rigidity of the handle 4 without thickening the wall of the handle 4. The reinforcing ribs arranged on the top of the inner wall of the cover body 404 are I-shaped. Two parallel reinforcing ribs 406 are arranged at the bottom of the inner wall of the loading body 405 and penetrate through the loading body 405, and the push block 3 is positioned above the two reinforcing ribs.

Push button

Preferably, this form of phlebotomy is also provided with a push button 5, and pushing the push button 5, the inner tube 2 is screwed into the severed vein. Referring to fig. 22, 28 and 29, the upper housing 302 of the push block 3 is provided with a convex pillar 314, the cover 404 is provided with a push hole 407 through which the convex pillar 314 passes, the push hole 407 comprises a straight section 4071 and a screwing section 4072, the push button 5 is provided with a clamping groove 501 matched with the convex pillar 314, and the length of the clamping groove 501 is not less than the rotation arc length of the screwing section 4071. The straight section 4071 and the precession section 4072 have a certain included angle, the preferable included angle range is 135-150 degrees, the inner tube moves linearly at the straight section and rotates at the precession section 4072, and the vein can be cut off fully.

In one embodiment, the surface of the panel 502 is provided with a protrusion 503, and the clamping groove 501 is opened in the protrusion 503, see fig. 28. The clip groove 501 is formed in the projection 503 without increasing the wall thickness of the panel 502.

In one embodiment, the panel 502 includes a front pushing portion 504 and a rear pushing portion 505 (fig. 28), the protrusion 503 is located between the front pushing portion 504 and the rear pushing portion 505, the front pushing portion 504 and the rear pushing portion 505 are both provided with an abutting portion 506, and the abutting portion 506 is a concave stopper. Pushing the front pushing part 504 and the push button 5 to advance; the push-back portion 505 is pushed, and the push button 5 retreats. Whether the pushing part 504 or the pushing part 505 is pushed, the finger can be pressed against the resisting part 506, so as to facilitate pushing.

In one embodiment, as shown in fig. 22, the cover 404 has a sliding slot 408, and both sides of the sliding slot 408 have slot walls 409, and the length of the sliding slot 408 is greater than that of the panel 502. The push button 5 is located in the slide groove 408 and moves within a certain range along the slide groove 408. It should be noted that the push button 5 has a certain moving range in the sliding groove 408, and the requirement that the inner tube 2 can cut off the vein when the push button 5 is pushed is satisfied.

Further, as shown in fig. 22, two sides of the top of the sliding groove 408 are both provided with a fixture block 410, and two sides of the bottom of the push button 5 are correspondingly provided with a notch 411. When the push button 5 retreats to the rear end of the sliding groove 408, the fixture block 410 is clamped in the notch 411 to prevent the push button 5 from retreating continuously, the push button 5 advances to the fixture block 410 at the front end of the sliding groove 408 to prevent the push button 5 from advancing continuously, and when the push button 5 is pushed, the notch 411 needs to be separated from the fixture block 410 to move the push button 5, so that misoperation is prevented.

As shown in fig. 26 and 29, the side edge of the slide groove 408 is provided with a guide groove 412, and the edge of the push button 5 is provided with a slider 413 which is engaged with the guide groove 412. The sliding block 413 is engaged with the guiding groove 412, and the guiding groove 412 has a guiding function for the movement of the push button 5, so that the push button 5 moves along the cover 404, and the push button 5 is prevented from being separated from the cover 404.

The push button 5 is fitted to the cover 404. In this version of the exciser, the surface of the cap 404 is semi-cylindrical, and the push button 5 is correspondingly semi-cylindrical. The bottom of the push button 5 is attached to the top end of the cover 404, so that the push button is easy to push.

The push button 5 in this version of the exciser is provided with a locking mechanism, the structure of which is the same as in the first version of the exciser.

Mounting of handle to outer tube

In this type of exciser, the outer tube 1 is a cylindrical elongated steel tube having the same structure as the outer tube in the first type of exciser. An extension tube 414 is arranged at the end part of the handle 4, the cover body 404 is fixedly connected with the loading body 405 through a screw cap 415, inner threads are arranged on the inner wall of the screw cap 415, and outer threads matched with the inner threads are arranged on the outer wall of the extension tube 414.

As shown in fig. 21, 22, 30 and 32, the outer tube 1 is sleeved with the movement preventing member 103, and the movement preventing member 103 is located between the screw cap 415 and the outer tube 1. The movement preventing member 103 is used for preventing the outer tube 1 from moving and being pulled off due to operation. Preferably, the middle of the movement prevention member 103 is expanded, and the outer diameter is gradually reduced from the middle to both ends. So set up, be favorable to tightly blocking outer tube 1, prevent its removal. Preferably, the expanded portion is provided with a convex ring 1031. The raised ring 1031 cooperates with the threads on the interior of the screw cap 415 to further effectively prevent the movement of the anti-migration component 103.

The screw cap 415 has an outlet hole through which the outer tube 1 passes, and the outer diameter of the end surface of the displacement preventing member 103 is larger than the inner diameter of the outlet hole. Thus, the anti-migration 103 is confined within the screw cap 415.

As shown in fig. 30 and 31, the inner tube 2 is connected to the outer tube 1 by a sleeve 104, and the inner wall of the sleeve 104 is provided with a stop ring 1041 for stopping the orifice of the outer tube 1. The orifice of the outer tube 1 is blocked by the blocking ring 1041, preventing the backward movement of the outer tube 1.

As shown in fig. 27, the handle 4 has a positioning slot 416 for receiving the sleeve 104, the positioning slot 416 being in communication with the extension tube 414. The positioning slot 416 just accommodates the sleeve 104, which has a positioning function and is beneficial to assembly, and meanwhile, the sleeve 104 is limited in the positioning slot 416, thereby effectively preventing the outer tube 1 from moving backwards.

Mounting of handle to inner tube

The inner tube 2 of this version of the exciser is mounted in the same manner as the inner tube structure, handle 4 and inner tube 2 of the first version of the exciser. The inner tube 2, the tail tube 7, the nut 701 and the sealing ring 706 are matched to realize glue-free connection, and the connection structure and the connection mode between the inner tube 2, the nut 701 and the tail tube 7 are the same as those of the first type of exciser.

As shown in fig. 32, the outer wall of the moving section 710 of the tail pipe 7 is uniformly provided with limit stop strips 7101 in the circumferential direction. The stop strip 7101 abuts the edge of the second through hole 403 to prevent the tail tube 7 from being pulled out of the handle 4 during operation.

This version of the exciser has an image capture device, the same composition and structure as the image capture device in the first version of the exciser.

The utility model discloses a working process: before the operation, push the button and push to lid spout top, the inner tube is located the pick outlet rear end this moment. At the beginning of the operation, the doctor first cuts a small opening in the skin surface of the patient, and locates and cuts the vein of the patient to be excised. Then the vein to be cut is pulled out of the head and enters from the stripping opening of the outer tube of the vein cutter, and is pulled out of the stripping opening, and the head of the vein is kept outside the body. At this time, the vein resectoscope is extended into the skin from the through hole of the skin and is pushed along the vein to be resected, so that the vein to be resected is separated from the surrounding tissues. The swelling liquid is injected through an externally connected injector, enters the vein position through an inner tube, and needs to be injected for a plurality of times during the operation. When the vein resectoscope reaches a preset position, the push button is pushed, the inner tube is pushed to the top, the annular cutter cuts off the stripped vein, then the cut vein is drawn out, the vein resectoscope is pulled out, and finally the skin incision is sutured, so that the operation is completed.

The utility model shown and described herein may be implemented in the absence of any element, limitation, or limitations specifically disclosed herein. The terms and expressions which have been employed are used as terms of description and not of limitation, and there is no intention in the use of such terms and expressions of excluding any equivalents of the features shown and described or portions thereof, and it is recognized that various modifications are possible within the scope of the invention. It should therefore be understood that although the present invention has been specifically disclosed by various embodiments and optional features, modification and variation of the concepts herein described may be resorted to by those skilled in the art, and that such modifications and variations are considered to be within the scope of this invention as defined by the appended claims.

The contents of the articles, patents, patent applications, and all other documents and electronically available information described or cited herein are hereby incorporated by reference in their entirety to the same extent as if each individual publication was specifically and individually indicated to be incorporated by reference. Applicants reserve the right to incorporate into this application any and all materials and information from any such articles, patents, patent applications, or other documents.

Claims (7)

1. Vein resectoscope with camera device, including the outer tube, the outer tube has the mouth of peeling off, and its characterized in that includes the camera, peels off a mouthful lateral wall and opens there is the through-hole, and the camera is located the through-hole.

2. The phlebotomizer with a camera assembly of claim 1, wherein the through-hole extends toward the ostium end of the dissection port, and the camera is adhesively secured to the connecting wall of the through-hole.

3. The phlebotomy apparatus having a camera apparatus according to claim 2, wherein a sheath tube is provided around the outer tube, and the lead wire connected to the camera is wrapped between the outer tube and the sheath tube.

4. The phlebotomizer with a camera device of claim 3, wherein the covering tube is made of a heat shrinkable film.

5. The phlebotomy apparatus having an imaging device according to claim 4, wherein the outer tube has an escape hole formed in a sidewall thereof, and the lead wire is kept away from the escape hole.

6. The phlebotomizer with a camera device of claim 5, wherein the lead is positioned opposite the knockout hole.

7. The phlebotomizer with a camera device of claim 6, wherein a display tip is attached to the lead.

Images