Receding type endoscope

Abstract

The utility model discloses a receding type endoscope which comprises a lens assembly, a sleeve assembly and a handle assembly, the sleeve assembly comprises a main channel and at least one water injection channel communicated with the main channel, one end of the sleeve assembly is connected with the handle assembly, and the other end of the sleeve assembly is connected with the lens assembly. The lens assembly comprises a lens part and a lens tube connected with the lens part, the lens tube is of a flat hollow structure, one end of the lens tube is arranged in the main channel in a penetrating mode, connected with the handle assembly and close to the upper side wall of the main channel, and the other end of the lens tube is close to the lower side wall of the main channel and connected with the lens part. According to the utility model, the lens part and the sleeve assembly are accommodated, arranged and mounted, and when in use, the lens part is upwards ejected open by utilizing an extending instrument, and meanwhile, an enough channel section is exposed, so that an enough channel space is provided for an examination and treatment instrument on the premise of not hurting a patient, the structure is simple and practical, and the operation is convenient and fast.

Description

TECHNICAL FIELD

[0001] The utility model relates to endoscope production technical field, especially let the endoscope of formula. BACKGROUND

[0002] When carrying out uterine examination and treatment, the frequency of using endoscope is very high, but limited to the use environment of small opening of cervical orifice, the large size endoscope can scratch the cervical orifice and form secondary injury, but the outer diameter of endoscope must be maintained in a certain size range, and the smaller size will inevitably make the instrument channel in the instrument tube smaller, and also affect the flow of fluid in the process of water injection and suction, which will hinder normal examination and treatment. SUMMARY

[0003] In view of the above technical problems of prior art, the utility model wants to solve the technical problem of providing a let formula endoscope which can guarantee the flow of fluid and is convenient for passing through the cervical orifice.

[0004] To solve the above technical problems, one technical scheme of the utility model is to provide a let formula endoscope, which comprises a lens assembly, a sleeve assembly and a handle assembly, the sleeve assembly comprises a main channel and at least one water injection channel, one end of the sleeve assembly is connected with the handle assembly, the other end is connected with the lens assembly, the lens assembly comprises a lens part and a connected lens tube, the lens tube is a flat hollow structure, one end of the lens tube is arranged in the main channel and connected with the handle assembly and close to the upper side wall of the main channel, the other end of the lens tube is close to the lower side wall of the main channel and connected with the lens part.

[0005] The lens part is arranged in the corresponding position of the main channel when not in use, which reduces the space occupied by installation and is convenient for passing through the cervical orifice, after the endoscope enters the uterus, the required instrument is arranged in the position of the lens part through the corresponding position of the handle assembly and the sleeve assembly, the surgical instrument is arranged in the lens part and is lifted up and tends to be horizontal, which exposes the space of the corresponding position of the sleeve assembly and guarantees the flow of fluid, at the same time, water is injected from the water injection channel and flows to the surgical position through the water outlet hole, and the used water is discharged through the main channel under the action of negative pressure, which is simple and compact, has high moving position precision and is flexible to use.

[0006] In order to simplify the structure and facilitate installation, as preferred, the handle assembly comprises a front fixed seat sleeved in the handle, an outer tube provided on the front fixed seat, a front support seat and a rear support seat provided in the fixed sleeve, the water injection channel comprises a water injection pipe and a water suction pipe communicated with the main channel, and a water containing cavity communicated with the water injection pipe is formed between the corresponding positions of the front fixed seat, the front support seat and the inner wall of the fixed sleeve.

[0007] In order to simplify the structure and facilitate installation, as preferred, a guide sleeve is further sleeved on one end of the outer wall of the rear support seat, a wire arranging pipe is sleeved in the guide sleeve, a stepped hole is provided on one side of the wire arranging pipe, a slot hole communicated with the small hole end of the stepped hole is provided on the stepped surface of the stepped hole, a lens pipe is fixedly provided in the slot hole and sequentially passes through the front support seat and the front fixed seat from front to back, a wire is arranged in the lens pipe, an opening is provided on the guide sleeve corresponding to the wire passing end, the wire extends out of the opening and passes out of the handle; a water return cavity communicated with the water suction pipe is formed between the corresponding positions of the front support seat, the rear support seat and the inner wall of the fixed sleeve.

[0008] In order to prevent water leakage and better play a sealing role, as preferred, the outer walls of the front fixed seat, the front support seat and the rear support seat are all provided with annular grooves, and sealing rings are provided in the annular grooves, and each sealing ring abuts against the corresponding position of the inner wall of the fixed sleeve.

[0009] In order to simplify the structure and facilitate installation, as preferred, the main channel comprises a water discharging pipe inserted in the outer tube, a first middle hole is provided on the front support seat, a second middle hole is provided on the rear support seat, the water discharging pipe passes out of the first middle hole from front to back, the passing end of the water discharging pipe extends into the second middle hole through the water return cavity, and a water outlet hole is provided on the water discharging pipe corresponding to the position of the water return cavity.

[0010] In order to simplify the structure and facilitate installation, as preferred, the outer wall of the water discharging pipe is symmetrically provided with two flat surfaces, the two flat surfaces and the inner wall of the outer tube form a water inlet slot communicated with the water containing cavity, and a water discharging hole communicated with the water inlet slot is provided on the outer tube.

[0011] In order to avoid water leakage and prevent water from being sucked out at the water inlet position, as preferred, the front support seat and the rear support seat are the same in structure, and the hole shapes of the first middle hole and the second middle hole are adapted to the shape of the water discharging pipe.

[0012] In order to facilitate the placement of the endoscope and reduce the resistance of use interference, as preferred, a support sleeve is provided on one end of the outer tube, a through hole communicated with the outer tube is provided on the support sleeve, a notch slot communicated with the through hole is provided on one side of the support sleeve, the lens part is freely hung in the notch slot, and a transition inclined surface is provided on the lens part towards one end of the outer tube.

[0013] In order to facilitate the quick insertion of the instrument and simplify the installation structure, as a preferred, an installation sleeve is arranged in the handle corresponding to the position of one end of the guide sleeve, the installation sleeve is fixedly sleeved with the corresponding end of the guide sleeve, a taper hole and a connecting hole communicated with the taper hole are arranged at one end of the guide sleeve, one end of the connecting pipe is sleeved with one end of the connecting pipe, and the other end of the connecting pipe is fixedly sleeved with the connecting hole; an instrument hole is arranged on the installation sleeve, a sealing support frame is arranged in the taper hole, and a sealing support hole communicated with the taper hole and the instrument hole is arranged on the sealing support frame.

[0014] In order to avoid the use of interference and appropriately increase the cross-sectional area of the water outlet direction, as a preferred, a gap inclined surface is arranged on the inner side wall of the gap groove.

[0015] Beneficial effects: the lens part and the sleeve assembly are contained and arranged, when used, the inserted instrument is used to push up the lens part, meanwhile, enough channel cross section is exposed, on the premise of not hurting the patient, enough channel space is provided for the examination and treatment instrument, the structure is simple and practical, and the operation is convenient. BRIEF DESCRIPTION OF DRAWINGS

[0016] The drawings described herein are used to provide further understanding of the present application, and form a part of the present application, the illustrative embodiments of the present application and the description thereof are used to explain the present application, and do not constitute improper limitation on the present application. In the drawings:

[0017] Figure 1 It is a structural schematic diagram of the utility model.

[0018] Figure 2 It is an enlarged view of A in Figure 1

[0019] Figure 3 It is an enlarged view of B in Figure 1

[0020] Figure 4 It is an enlarged view of C in Figure 1

[0021] Figure 5 It is an E-E view in Figure 1

[0022] Figure 6 It is a three-dimensional structural schematic diagram of the front support seat.

[0023] Figure 7 It is a three-dimensional structural schematic diagram of the rear support seat.

[0024] Figure 8 It is a structural schematic diagram of the guide sleeve.

[0025] ​​​​Figure 9 It is a structural schematic view of the wire discharge pipe.

[0026] Figure 10 It is a structural schematic view of the support sleeve.

[0027] Figure 11 It is a three-dimensional structural schematic view of the utility model.

[0028] Figure 12 It is Figure 11 an enlarged view of D in the figure.

[0029] The meaning of each reference sign in the drawing is as follows:

[0030] Handle-1; front fixed seat-10; fixed sleeve-101; water injection pipe-11; outer pipe-12; front support seat-13; first middle hole-131; rear support seat-14; second middle hole-141; fixed cylinder-134; water containing cavity-151; water returning cavity-152; sealing ring-153; drain pipe-16; water inlet groove-161; water outlet hole-162; drain hole-163; guide sleeve-17; wire discharge pipe-171; mirror pipe-173; mounting sleeve-18; instrument hole-181; sealing support frame-19; sealing support hole-191;

[0031] Endoscope-2; wire-21; transition inclined surface-22; connecting hole-30; water suction pipe-31; tapered hole-32; support sleeve-4; notched groove-40; clearance inclined surface-41. DETAILED DESCRIPTION

[0032] As shown in Figures 1 to 12 the utility model discloses lens assembly, sleeve assembly and handle assembly, the sleeve assembly includes main channel and at least one water injection channel communicated with main channel, one end of this sleeve assembly is connected with handle assembly, and the other end is connected with lens assembly, and the lens assembly includes lens part 2 and the mirror pipe 173 connected, the mirror pipe 173 is the flat hollow structure, one end of this mirror pipe 173 is arranged in main channel, and is connected with handle assembly and is close to the upper side wall of main channel, and the other end of mirror pipe 173 is close to the lower side wall of main channel and is connected with lens part 2, when using, surgical instrument is inserted from main channel, and lens part 2 is lifted up with mirror pipe 173.

[0033] Specifically, the handle assembly comprises a front fixed seat 10 sleeved in the handle 1, an outer tube 12 is arranged on the front fixed seat 10, a front support seat 13 and a rear support seat 14 are arranged in a fixed sleeve 101 sleeved with the front fixed seat 10, the water injection channel comprises a water injection pipe 11 and a water pumping pipe 31 communicated with the main channel, a water containing cavity 151 communicated with the water injection pipe 11 is formed between the corresponding positions of the front fixed seat 10, the front support seat 13 and the inner wall of the fixed sleeve 101, a guide sleeve 17 is further sleeved on one end of the outer side wall of the rear support seat 14, a wire arranging pipe 171 is sleeved in the guide sleeve 17, a stepped hole is arranged on one side of the wire arranging pipe 171, a slot hole 172 communicated with the small hole end of the stepped hole is arranged on the stepped surface of the stepped hole, a mirror pipe 173 is fixedly arranged in the slot hole 172 and sequentially passes through the front support seat 13 and the front fixed seat 10 from front to back, a wire 21 is arranged in the mirror pipe 173, an opening is arranged on the guide sleeve 17 corresponding to the passing end of the wire 21, the wire 21 extends out of the opening and passes out of the handle 1, and a backwater cavity 152 communicated with the water pumping pipe 31 is formed between the corresponding positions of the front support seat 13, the rear support seat 14 and the inner wall of the fixed sleeve 101.

[0034] Ring grooves are arranged on the outer side walls of the front fixed seat 10, the front support seat 13 and the rear support seat 14, and sealing rings 153 are arranged in the ring grooves, and each sealing ring 153 abuts against the corresponding position of the inner wall of the fixed sleeve 101.

[0035] The main channel comprises a drain pipe 16 inserted in the outer tube 12, a first middle hole 131 is arranged on the front support seat 13, a second middle hole 141 is arranged on the rear support seat 14, the drain pipe 16 passes out of the first middle hole 131 from front to back, the passing end of the drain pipe 16 extends into the second middle hole 141 through the backwater cavity 152, and a water outlet hole 162 is arranged on the drain pipe 16 corresponding to the position of the backwater cavity 152; the outer side wall of the drain pipe 16 is symmetrically provided with two flat surfaces, the two flat surfaces and the inner side wall of the outer tube 12 form a water inlet slot 161 communicated with the water containing cavity 151, and a drain hole 163 communicated with the water inlet slot 161 is arranged on the outer tube 12.

[0036] The front support seat 13 and the rear support seat 14 are the same in structure, and the hole shapes of the first middle hole 131 and the second middle hole 141 are matched with the shape of the drain pipe 16; a support sleeve 4 is arranged on one end of the outer tube 12, a through hole communicated with the outer tube 12 is arranged on the support sleeve 4, a notched slot 40 communicated with the through hole is arranged on one side of the support sleeve 4, a displacement inclined surface 41 is arranged on the inner side wall of the notched slot 40, the lens part 2 is freely hung in the notched slot 40, and a transition inclined surface 22 is arranged on one end of the lens part 2 facing the outer tube 12.

[0037] The installation sleeve 18 is sleeved and fixed with the corresponding end of the guide sleeve 17, a taper hole 32 and a connecting hole 30 communicated with the taper hole 32 are arranged at one end of the guide sleeve 17, one end of the drain pipe 171 is sleeved with the connecting pipe 3, the other end of the connecting pipe 3 is sleeved and fixed with the connecting hole 30; the instrument hole 181 is arranged on the installation sleeve 18, the sealing support frame 19 is arranged in the taper hole 32, and the sealing support hole 191 communicated with the taper hole 32 and the instrument hole 181 is arranged on the sealing support frame 19.

[0038] The use principle of the utility model is as follows:

[0039] As shown in Figure 1 and Figure 2 , the camera and the lamp group are arranged in the lens part 2, the wires of the camera are connected with the guide sleeve 17 through the mirror pipe 173, and finally connected with the related surgical equipment (not marked) through the gap (as shown in Figure 4 and Figure 8 ) on the guide sleeve 17; before use, the whole lens part 2 is connected with the wire 21, the mirror pipe 173 supports the wire 21, the lens part 2 is hung in the gap groove 40, and the cross section position of the through hole in the middle of the supporting sleeve 4 is blocked, in order to facilitate the movement convenience of the lens part 2, the mirror pipe 173 is selected as an elastic rod, so that the lens part 2 can be quickly moved back after use, so as to avoid movement interference.

[0040] When used, as shown in Figures 3 to 12 , after the lens part 2 enters the uterus, the required surgical instrument (not marked) is sequentially arranged through the instrument hole 181, the support hole 191, the drain pipe 16 and the supporting sleeve 4 from back to front and enters the uterus, which not only facilitates operation, but also does not occupy too much cross section area of water flow, at the same time, the extension of the instrument lifts the hung lens part 2 upwards, and the lens part 2 is lifted and tends to be horizontal (as shown in Figure 11 and Figure 12 ), at this time, the cross section position of the through hole in the middle of the supporting sleeve 4 and the drain pipe 16 is left, that is, the cross section of the drain pipe 16 is increased, that is, the area of the channel of the instrument extension, in addition to the arrangement of the drain hole 163, the required water flow is ensured, and the drainage multidirectionality is provided, and the used water can be discharged in time, so that the examination and treatment can be carried out quickly and effectively.

[0041] Then, water is injected at the water injection pipe 11, the water in the handle 1 flows into the water inlet groove 161 through the water containing cavity 14, and is discharged into the uterus through the drain hole 163. The water suction pipe 31 is connected with a negative pressure machine (not marked), and the negative pressure machine is started. Under the action of the negative pressure in the water suction pipe 31, the used wastewater flows into the backwater cavity 152 through the drain pipe 16 and the water outlet hole 162 under the action of the negative pressure at the position of the water suction pipe 31, and is discharged by the water suction pipe 31. Due to the flat surface structure of the drain pipe 16 at the positions corresponding to the first middle hole 131 and the second middle hole 141, in order to prevent water injection from leaking at the water inlet position, the hole shapes of the first middle hole 131 and the second middle hole 141 are matched with the shape of the drain pipe 16, so as to ensure the sealing performance. Ring grooves are arranged at the positions corresponding to the fixed sleeve 101 on the outer side walls of the front fixed seat 10, the front support seat 13 and the rear support seat 14, and sealing rings 153 are arranged in the ring grooves. In addition, sealing rings 153 are also arranged at the sleeve joint positions corresponding to the guide sleeve 17 on the rear support seat 14. The sealing rings 153 are in abutment with the inner side walls of the guide sleeve 17, so as to realize the effect of multiple sealing.

[0042] After use, the instrument is taken out. Under the condition of no interference, the lens part 2 is again bounced downward to the notch groove 40 under the action of the elastic force of the mirror tube 173, the overall profile at the position of the support sleeve 4 is contracted, and then the hysteroscope is taken out from the cervical os of the uterus. In the foregoing process, the transition inclined surface 22 arranged on the lens part 2 and the accommodation inclined surface 41 on the support sleeve 4 can avoid movement interference and can avoid scratching the uterine tissue when moving due to sharp edges, so as to ensure the smooth movement of the lens part 2.

Claims

1. A side-viewing endoscope, characterized by: The utility model discloses a lens assembly, sleeve assembly and handle assembly, the sleeve assembly includes main channel and at least one water injection channel, one end of sleeve assembly is connected with handle assembly, the other end is connected with lens assembly, the lens assembly includes lens part (2) and the mirror tube (173) connected, the mirror tube (173) is the hollow structure of flat shape, one end of mirror tube (173) is arranged in main channel, and is connected with handle assembly and is close to the upper side wall of main channel, the other end of mirror tube (173) is close to the lower side wall of main channel and is connected with lens part (2), when using, surgical instruments are inserted from main channel, and lens part (2) is lifted with mirror tube (173) elastically.

2. A yielding endoscope according to claim 1, wherein: The handle assembly includes a front fixed seat (10) sleeved in a handle (1) and a fixed sleeve (101) sleeved with the front fixed seat (10), an outer tube (12) is arranged on the front fixed seat (10), a front support seat (13) and a rear support seat (14) are arranged in the fixed sleeve (101), the water injection channel includes a water injection pipe (11) and a water suction pipe (31) communicated with the main channel, a water containing cavity (151) communicated with the water injection pipe (11) is formed between the corresponding positions of the front fixed seat (10), the front support seat (13) and the inner wall of the fixed sleeve (101).

3. A repositionable endoscope as defined in claim 2, wherein: A guide sleeve (17) is further sleeved on one end of the outer side wall of the rear support seat (14), a wire arranging pipe (171) is sleeved in the guide sleeve (17), a stepped hole is arranged on one side of the wire arranging pipe (171), a slot hole (172) communicated with the small hole end of the stepped hole is arranged on the stepped surface of the stepped hole, a mirror tube (173) is fixedly arranged in the slot hole (172) and sequentially passes through the front support seat (13) and the front fixed seat (10) from front to back, a wire (21) is arranged in the mirror tube (173), an opening is arranged on the guide sleeve (17) corresponding to the passing end of the wire (21), the wire (21) extends out of the opening and passes out of the handle (1), and a backwater cavity (152) communicated with the water suction pipe (31) is formed between the corresponding positions of the front support seat (13), the rear support seat (14) and the inner wall of the fixed sleeve (101).

4. A repositionable endoscope as defined in claim 2, wherein: Ring grooves are arranged on the outer side walls of the front fixed seat (10), the front support seat (13) and the rear support seat (14), and sealing rings (153) are arranged in the ring grooves, and each sealing ring (153) abuts against the corresponding position of the inner wall of the fixed sleeve (101).

5. A repositionable endoscope as defined in claim 3, wherein: The main channel includes a water drainage pipe (16) arranged in the outer tube (12), a first middle hole (131) is arranged on the front support seat (13), a second middle hole (141) is arranged on the rear support seat (14), the water drainage pipe (16) passes out of the first middle hole (131) from front to back, the passing end of the water drainage pipe (16) extends into the second middle hole (141) through the backwater cavity (152), and a water outlet hole (162) is arranged on the water drainage pipe (16) corresponding to the position of the backwater cavity (152).

6. A repositionable endoscope as defined in claim 5, wherein: The outer side wall of the drain pipe (16) is symmetrically provided with two flat surfaces, and the two flat surfaces and the inner side wall of the outer pipe (12) form a water inlet groove (161) in communication with the water containing cavity (151), and the outer pipe (12) is provided with a drain hole (163) in communication with the water inlet groove (161).

7. A repositionable endoscope as defined in claim 5, wherein: The front support seat (13) and the rear support seat (14) are the same in structure, and the hole shapes of the first middle hole (131) and the second middle hole (141) are adapted to the shape of the drain pipe (16).

8. A repositionable endoscope as defined in claim 5, wherein: A support sleeve (4) is arranged at one end of the outer pipe (12), a through hole in communication with the outer pipe (12) is arranged on the support sleeve (4), a notch groove (40) in communication with the through hole is arranged on one side of the support sleeve (4), the lens part (2) is freely hung in the notch groove (40), and a transition inclined surface (22) is arranged on the lens part (2) and faces one end of the outer pipe (12).

9. A repositionable endoscope as defined in claim 3, wherein: A mounting sleeve (18) is arranged in the handle (1) and corresponds to the position of one end of the guide sleeve (17), the mounting sleeve (18) is sleeved and fixed with the corresponding end of the guide sleeve (17), a taper hole (32) and a connecting hole (30) in communication with the taper hole (32) are arranged at one end of the guide sleeve (17), one end of the drain line pipe (171) is sleeved with one end of the connecting pipe (3), the other end of the connecting pipe (3) is sleeved and fixed with the connecting hole (30), an instrument hole (181) is arranged on the mounting sleeve (18), a sealing support frame (19) is embedded in the taper hole (32), and a sealing support hole (191) in communication with the taper hole (32) and the instrument hole (181) is arranged on the sealing support frame (19).

10. A repositionable endoscope as defined in claim 8, wherein: A gap inclined surface (41) is arranged on the inner side wall of the notch groove (40).

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