Cutter handle bent accessory for otologic operation

Abstract

The cutter handle bent accessory comprises a water injection sleeve, a front bearing sleeve is connected to the inner wall of the water injection sleeve in a sleeved mode, two first bearings are installed on the inner wall of the rear end of the front bearing sleeve, the number of the first bearings is three, an isolation sleeve is installed between the two first bearings in an abutting mode, and the isolation sleeve is connected with the water injection sleeve in a sleeved mode. The outer side of the front bearing sleeve is sleeved with a pressing sleeve, the rear end of the pressing sleeve is rotationally connected with a rotating sleeve, the two ends of the rotating sleeve are each provided with a first sealing ring, the inner wall of the rotating sleeve is sleeved with a front bent base, and the circumferential face of the front bent base is provided with a C-shaped sliding groove. A first ball is connected into the C-shaped sliding groove in a rolling mode, a positioning sliding groove is formed in the inner ring of the rotating sleeve, and the positioning sliding groove is connected with the first ball in a rolling mode. Through the structure, the front bent sleeve is matched with the bent end seat, so that the water injection sleeve 1 can be used for accurately flushing and cooling a cutting point.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical equipment technical field, concretely is a cutter handle bend accessory for otological operation. BACKGROUND

[0002] The otological operation operation needs very high accuracy and stability, along with the development of medical technology, the minimally invasive surgery is paid more and more attention, and the cutter handle bend accessory is used as the otological power handle supporting accessory in the otological operation process, which locks and clamps the cutting tool head, improves the holding and accurate operation, can carry out fine operation in the narrow ear space, and avoids unnecessary damage to the surrounding normal tissue.

[0003] However, the cutter handle of the existing otological operation lacks smooth adjusting member, is inconvenient to accurately adjust the cutter in the process of operation, and is inconvenient for medical staff in the process of use, and the cutter handle of the otological operation is in a flat state, is inconvenient to place when the ear is held for different situations in the process of operation, and the operation effect is easily affected. UTILITY MODEL CONTENTS

[0004] The utility model discloses a cutter handle bend accessory for otological operation, and solves the problem that the cutter handle of the existing otological operation is inconvenient to adjust and is not suitable for different operation conditions.

[0005] In order to achieve the above object, a cutter handle bending accessory for otological surgery is provided, comprising: a water injection sleeve, an inner wall of the water injection sleeve is sleeved with a front bearing sleeve, two first bearings are installed on the rear end inner wall of the front bearing sleeve, the first bearings are provided with three, two of the first bearings are installed in abutment, a spacer sleeve is installed between the two first bearings, the rear end of the other first bearing is in abutment with a threaded pressing ring, the outer side of the front bearing sleeve is sleeved with a pressing sleeve, the rear end of the pressing sleeve is rotatably connected with a rotating sleeve, the two ends of the rotating sleeve are both installed with a first sealing ring, the inner wall of the rotating sleeve is sleeved with a front bending seat, the circumferential surface of the front bending seat is provided with a C-shaped sliding groove, the inside of the C-shaped sliding groove is rotatably connected with a first ball, the inner ring of the rotating sleeve is provided with a positioning sliding groove, and the positioning sliding groove and the first ball are rotatably connected, the rear end inner wall of the front bending seat is installed with a first spring, the rear end inner wall of the first spring is sleeved with a bearing stop ring, the rear end of the bearing stop ring is in abutment with a second bearing, the inner wall of the second bearing is installed with a first flat washer and a second flat washer in sequence, the rear end of the second bearing is in abutment with a second spring, the outer side of the bearing stop ring is sleeved with a first movable sleeve, the rear end of the second spring is in abutment with a first clamping spring, the rear end of the first clamping spring is in abutment with a stop ring, the inner wall of the stop ring is installed with a second sealing ring, the rear end of the second sealing ring is in abutment with a second movable sleeve, the rear end of the second movable sleeve is in abutment with a third spring, the inner wall of the third spring is sleeved with a transmission shaft, the circumferential surface of the transmission shaft is provided with a lock shaft sliding groove and a first positioning hole, the inside of the lock shaft sliding groove is rotatably connected with a second ball, and the second ball and the third spring are in abutment, the outer side of the transmission shaft is sleeved with a third bearing, the rear end of the third bearing is installed with a small stop ring, the rear end of the small stop ring is in abutment with a gear, the side wall of the gear is provided with a second positioning hole, the inside of the positioning hole is installed with a first cylindrical pin, one end of the first cylindrical pin extends to the inside of the first positioning hole through the second positioning hole, the rear end of the third bearing is installed with a third flat washer, the rear end of the third flat washer is installed with a second clamping spring, the rear end of the second clamping spring is installed with a cap, the outer side of the cap is installed with a bending end seat, the front end of the bending end seat is in contact with the rear end of the front bending seat, and the rear end of the gear is meshingly connected with a gear belt shaft.

[0006] According to the cutter handle bending accessory for otological surgery, the rear end of the gear belt shaft is installed with a fourth spring on the outer side, the rear end of the fourth spring is in abutment with a fourth bearing, the fourth bearing is provided with two, a bearing seat is installed between the two fourth bearings, the rear end of one of the fourth bearings is in abutment with a pressing sleeve, the inner wall of the pressing sleeve is slidably connected with a fork sleeve, and the outer side of the gear belt shaft and the outer side of the fork sleeve are both provided with a third positioning hole.

[0007] According to the cutter handle bending accessory for otological surgery, the rear end of the gear belt shaft extends to the inside of the fork sleeve through the fourth spring, the fourth bearing, the two bearing seats and the middle part of the pressing sleeve in sequence, and the inside of the two third positioning holes is installed with a second cylindrical pin.

[0008] According to the aforementioned curved attachment for a cutter handle used in ear surgery, the rear end of the curved end seat abuts against a rear locking sleeve. The rear locking sleeve and the second retaining spring are both provided with multiple insertion holes in their middle portions. A third cylindrical pin is installed inside the insertion holes. A retaining sleeve and two third sealing rings are sequentially installed on the outer side of the rear locking sleeve.

[0009] According to the aforementioned cutter handle bend attachment for ear surgery, the ferrule and two third sealing rings are spaced apart, the first flat washer is smaller than the second flat washer, the inner wall of the water injection sleeve is rotatably connected to the outer side of the front bearing sleeve, the inner wall of the rotating sleeve is rotatably connected to the outer side of the front bend seat, and the outer side of the cap is fitted with the inner wall of the bend seat.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] This invention utilizes a front bend seat, a rotating sleeve, a first ball bearing, a first spring, a first movable sleeve, a second movable sleeve, a transmission shaft, a gear, a bend end seat, and a gear belt shaft. The C-shaped groove and the first ball bearing work together to ensure smooth rotation of the rotating sleeve. Furthermore, the rear end of the rotating sleeve engages with the front end of the bend end seat, allowing adjustment of the angle between the front end sleeve and the water injection sleeve. This enables medical personnel to adjust the angle according to surgical needs under different circumstances, ensuring the surgery can proceed normally. It avoids the inability to adjust the angle between the front end sleeve and the water injection sleeve and allows the water injection sleeve to precisely rinse and cool the cutting point.

[0012] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0014] Figure 1 This is a perspective view of a curved handle attachment for an ear surgery device according to the present invention.

[0015] Figure 2 This is an exploded view of a curved handle attachment for an ear surgery device according to the present invention.

[0016] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;

[0017] Figure 4 This utility model Figure 2 Enlarged view of point B in the middle;

[0018] Figure 5 This utility model Figure 2 Enlarged view of point C in the middle;

[0019] Figure 6 For the utility model Figure 2 The enlarged view of D in the middle;

[0020] Figure 7 For the utility model Figure 2 The enlarged view of E in the middle;

[0021] Figure 8 For the utility model Figure 2 The enlarged view of F in the middle.

[0022] In the figure: 1, water injection cover; 2, front bearing cover; 3, first bearing; 4, isolation cover; 5, threaded pressure ring; 6, compression cover; 7, first sealing ring; 8, rotating cover; 9, front bending seat; 10, first ball; 11, first spring; 12, bearing check ring; 13, second bearing; 14, first flat washer; 15, second flat washer; 16, second spring; 17, first movable cover; 18, first circlip; 19, check ring; 20, second sealing ring; 21, second movable cover; 22, third spring; 23, second ball; 24, transmission shaft; 25, third bearing; 26, small check ring; 27, first cylindrical pin; 28, gear; 29, third flat washer; 30, second circlip; 31, bending end seat; 32, cap; 33, gear belt shaft; 34, fourth spring; 35, fourth bearing; 36, bearing seat; 37, compression cover; 38, second cylindrical pin; 39, fork cover; 40, rear locking cover; 41, third cylindrical pin; 42, clamping cover; 43, third sealing ring. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] Please refer to Figures 1-8The utility model discloses an embodiment provides a kind of technical scheme: a cutter handle bend accessory for otology surgery, comprising: water injection sleeve 1, water injection sleeve 1 inner wall sleeve has front bearing sleeve 2, two first bearings 3 are installed in the rear end inner wall of front bearing sleeve 2, and three are provided in first bearing 3, wherein two first bearings 3 between abutment installation has isolation sleeve 4, cooperate using three first bearings 3 and isolation sleeve 4, when it is convenient to install cutter in the process of rotation of rotating sleeve 8, another first bearing 3 rear end abutment has threaded pressing ring 5, and the outer side of front bearing sleeve 2 is sleeved with pressing sleeve 6, and the inner wall of pressing sleeve 6 is cooperated with three first bearings 3, isolation sleeve 4 and threaded pressing ring 5, and the rear end of pressing sleeve 6 is cooperated with the rear end of water injection sleeve 1, to install front bearing sleeve 2, and the rear end of pressing sleeve 6 is rotatably connected with rotating sleeve 8, and the both ends of rotating sleeve 8 are installed with first sealing ring 7, and first sealing ring 7 is provided with two, and is installed in the inner wall of rotating sleeve 8, so that rotating sleeve 8 will not leak in the process of rotation, and the inner wall of rotating sleeve 8 is sleeved with front bend seat 9, and the circumferential surface of front bend seat 9 is provided with C-shaped sliding groove, and first ball 10 is rotatably connected in the inside of C-shaped sliding groove, and the inner ring of rotating sleeve 8 is provided with positioning sliding groove, and positioning sliding groove and first ball 10 are rotatably connected, so that rotating sleeve 8 is cooperated with first ball 10, and it is relatively smooth in the process of rotation, and it is convenient to install cutter, and the inner wall of the rear end of front bend seat 9 is installed with first spring 11, the inner wall of the rear end of first spring 11 is sleeved with bearing stop ring 12, the rear end of bearing stop ring 12 abutment has second bearing 13, first flat washer 14 and second flat washer 15 are installed in the inner wall of second bearing 13 in proper order, the rear end of second bearing 13 abutment has second spring 16, the outer side of bearing stop ring 12 is sleeved with first movable sleeve 17, the inner wall of first movable sleeve 17 is cooperated with the outer side of second movable sleeve 21, and both are sleeved in the inside of bend end seat 31, so that bend end seat 31 will not affect internal components in the process of rotation, it is convenient to adjust the angle of water injection sleeve 1, the rear end of second spring 16 abutment has first snap spring 18, the rear end of first snap spring 18 abutment has stop ring 19, second sealing ring 20 is installed in the inner wall of stop ring 19, so that, after stop ring 19 is connected with second movable sleeve 21, the sealing property of its connecting place is kept using second sealing ring 20, the rear end of second sealing ring 20 abutment has second movable sleeve 21, the rear end of second movable sleeve 21 abutment has third spring 22, the inner wall of third spring 22 is sleeved with transmission shaft 24, transmission shaft 24 rear end is connected with gear 28, and is connected using first cylindrical pin 27, the circumferential surface of transmission shaft 24 is provided with lock shaft sliding groove and first positioning hole, second ball 23 is rotatably connected in the inside of lock shaft sliding groove, it is convenient for high-speed rotation of transmission shaft 24, and second ball 23 and third spring 22 abutment, the outer side of transmission shaft 24 is sleeved with third bearing 25, small stop ring 26 is installed in the rear end of third bearing 25, the rear end of small stop ring 26 abutment has gear 28, using high wear-resistant gear 28, so that it can withstand long-term high-speed rotation, the side wall of gear 28 is provided with second positioning hole,The positioning hole is internally provided with a first cylindrical pin 27, one end of the first cylindrical pin 27 extends through the second positioning hole to the inside of the first positioning hole, the third bearing 25 is internally provided with a third flat washer 29, the third flat washer 29 is internally provided with a second circlip 30, the second circlip 30 is internally provided with a cap 32, the cap 32 is externally provided with a bent end seat 31, the bent end seat 31 is in contact with the rear end of the front bent seat 9, the gear 28 is externally provided with a gear belt shaft 33, the gear belt shaft 33 drives the gear 28 to rotate at high speed, facilitating the ear surgery.

[0025] The fourth spring 34 is externally provided with a fourth bearing 35, the fourth bearing 35 is in contact with the fourth spring 34, the fourth bearing 35 is provided with two, facilitating the smooth rotation of the fork sleeve 39 after being connected with the gear belt shaft 33, and the vibration can be reduced by using multiple bearings, the fork sleeve 39 is externally provided with a bearing seat 36, one of the fourth bearings 35 is in contact with the bearing seat 36, the bearing seat 36 is internally provided with a pressing sleeve 37, the pressing sleeve 37 is internally provided with the fork sleeve 39, the gear belt shaft 33 is externally provided with a third positioning hole, the second cylindrical pin 38 is externally provided with a third positioning hole, the gear belt shaft 33 extends through the fourth spring 34, the fourth bearing 35, the two bearing seats 36 and the middle part of the pressing sleeve 37 to the inside of the fork sleeve 39, the second cylindrical pin 38 is internally provided with a third positioning hole, the bent end seat 31 is in contact with the rear locking sleeve 40, the rear locking sleeve 40 and the second circlip 30 are externally provided with multiple insertion holes, the third cylindrical pin 41 is externally provided with multiple insertion holes, the rear locking sleeve 40 is connected with the second circlip 30, so as to position the bent end seat 31 and facilitate the rotation of the bent end seat 31, the rear locking sleeve 40 is externally provided with a clamping sleeve 42 and two third sealing rings 43, the clamping sleeve 42 and the two third sealing rings 43 are spaced apart, the first flat washer 14 is smaller than the second flat washer 15, the inner wall of the water injection sleeve 1 is rotatably connected with the outer side of the front bearing sleeve 2, the inner wall of the rotating sleeve 8 is rotatably connected with the outer side of the front bent seat 9, and the outer side of the cap 32 is in contact with the inner wall of the bent end seat 31.

[0026] Working principle: in use, the tool is connected according to the need, the rotating sleeve 8 is rotated to the right, the first ball 10 is rotated, the first movable sleeve 17 is moved backward, the second movable sleeve 21 is slid backward in the moving process, the second ball 23 is released, the tool is inserted into the transmission shaft 24 along the front bearing sleeve 2, the rotating sleeve 8 is rotated to the left, the second ball 23 is tightly contacted with the tool, and the tool is locked.

[0027] The cutter head is connected, the tail is inserted into the corresponding handle, the cutter head is aligned with the cutting tissue, the handle drives the gear to rotate the shaft 33, the gear 28 is engaged to drive the transmission shaft 24 to rotate the cutter at high speed, the cutting tissue is cut, the external water injection sleeve 1 can accurately flush and cool the cutting point, and the front end of the bent end seat 31 is cooperated with the front bent seat 9, the front end of the bent end seat 31 is sleeved on the outer portion of the rear end of the front bent seat 9, the bent end seat 31 can be rotated, the angle of the handle connected to the rear end can be adjusted, the angle of the water injection sleeve 1 can be adjusted, and the water injection sleeve 1 can accurately flush and cool the cutting point.

[0028] The utility model has been described in detail in combination with the drawings, but the utility model is not limited to the above-mentioned embodiment, and various changes can be made within the knowledge range of ordinary skilled in the art without departing from the purpose of the utility model.

Claims

1. A cutter handle bend attachment for otologic surgery, comprising: The injection sleeve (1) is characterized in that the inner wall of the injection sleeve (1) is sleeved with a front bearing sleeve (2), the rear end inner wall of the front bearing sleeve (2) is provided with two first bearings (3), the first bearing (3) is provided with three, two of which are provided with an isolation sleeve (4) in contact, and the rear end of the other first bearing (3) is in contact with a threaded pressing ring (5), the outer side of the front bearing sleeve (2) is sleeved with a pressing sleeve (6), the rear end of the pressing sleeve (6) is rotatably connected with a rotating sleeve (8), the both ends of the rotating sleeve (8) are provided with a first sealing ring (7), the inner wall of the rotating sleeve (8) is sleeved with a front bending seat (9), the circumferential surface of the front bending seat (9) is provided with a C-shaped sliding groove, the inside of the C-shaped sliding groove is rotatably connected with a first ball (10), the inner ring of the rotating sleeve (8) is provided with a positioning sliding groove, and the positioning sliding groove and the first ball (10) are rotatably connected, the rear end inner wall of the front bending seat (9) is provided with a first spring (11), the rear end inner wall of the first spring (11) is sleeved with a bearing check ring (12), the rear end of the bearing check ring (12) is in contact with a second bearing (13), the inner wall of the second bearing (13) is sequentially provided with a first flat washer (14) and a second flat washer (15), the rear end of the second bearing (13) is in contact with a second spring (16), the outer side of the bearing check ring (12) is sleeved with a first movable sleeve (17), the rear end of the second spring (16) is in contact with a first clamping spring (18), the rear end of the first clamping spring (18) is in contact with a check ring (19), the inner wall of the check ring (19) is provided with a second sealing ring (20), the rear end of the second sealing ring (20) is in contact with a second movable sleeve (21), the rear end of the second movable sleeve (21) is in contact with a third spring (22), the inner wall of the third spring (22) is sleeved with a transmission shaft (24), the circumferential surface of the transmission shaft (24) is provided with a lock shaft sliding groove and a first positioning hole, the inside of the lock shaft sliding groove is rotatably connected with a second ball (23), and the second ball (23) and the third spring (22) are in contact, the outer side of the transmission shaft (24) is sleeved with a third bearing (25), the rear end of the third bearing (25) is provided with a small check ring (26), the rear end of the small check ring (26) is in contact with a gear (28), the side wall of the gear (28) is provided with a second positioning hole, the inside of the positioning hole is provided with a first cylindrical pin (27), one end of the first cylindrical pin (27) extends to the inside of the first positioning hole through the second positioning hole, the rear end of the third bearing (25) is provided with a third flat washer (29), the rear end of the third flat washer (29) is provided with a second clamping spring (30), the rear end of the second clamping spring (30) is provided with a cap (32), the outside of the cap (32) is provided with a bending end seat (31), the front end of the bending end seat (31) is in contact with the rear end of the front bending seat (9), and the rear end of the gear (28) is meshingly connected with a gear belt shaft (33).

2. A cutter handle bend attachment for otologic surgery as defined in claim 1, wherein: The fourth spring (34) is installed outside the rear end of the gear belt shaft (33), the rear end of the fourth spring (34) abuts against the fourth bearing (35), the fourth bearing (35) is provided with two, the bearing seat (36) is installed between the two fourth bearings (35), the rear end of one fourth bearing (35) abuts against the pressing sleeve (37), the fork sleeve (39) is slidably connected to the inner wall of the pressing sleeve (37), and the outer side of the fork sleeve (39) and the outer side of the gear belt shaft (33) are both provided with third positioning holes.

3. A cutter handle bend attachment for otologic surgery as defined in claim 2, wherein: The rear end of the gear belt shaft (33) extends to the inside of the fork sleeve (39) through the fourth spring (34), the fourth bearing (35), the two bearing seats (36) and the middle part of the pressing sleeve (37) in sequence, and the second cylindrical pin (38) is installed in the two third positioning holes.

4. A cutter handle bend attachment for otologic surgery as defined in claim 1, wherein: The rear end of the bent end seat (31) abuts against the rear locking sleeve (40), a plurality of insertion holes are formed in the middle part of the second circlip (30) and the rear locking sleeve (40), the third cylindrical pin (41) is installed in the insertion hole, and the clamping sleeve (42) and the two third sealing rings (43) are installed on the outer side of the rear locking sleeve (40) in sequence.

5. A cutter handle bend attachment for otologic surgery as defined in claim 4, wherein: The clamping sleeve (42) and the two third sealing rings (43) are spaced apart, the first flat washer (14) is smaller than the second flat washer (15), the inner wall of the water injection sleeve (1) is rotatably connected to the outer side of the front bearing sleeve (2), the inner wall of the rotating sleeve (8) is rotatably connected to the outer side of the front bent seat (9), and the outer side of the cap (32) is attached to the inner wall of the bent end seat (31).

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