Hysteroscope with sealing device

Abstract

The hysteroscope with the sealing device comprises an operation portion and an insertion portion connected with the operation portion in a sealing mode, the operation portion comprises a sealing valve body, an operation knob, a water pipe plug and a water pipe base, and the insertion portion comprises an insertion pipe and an instrument channel pipe with one end contained in the insertion pipe. The front end of the operation knob is contained in the sealing valve body and forms first sealing connection with the sealing valve body. The sealing valve body is contained in the water pipe plug and forms second sealing connection with the water pipe plug. And the water pipe seat is sleeved on the water pipe plug and forms third sealing connection with the water pipe plug. The operation knob is used for driving the water pipe plug to rotate in the water pipe seat. Waterproof glue is arranged between the insertion pipe and the water pipe base to form fourth sealing connection. The other end of the instrument channel pipe is contained in the water pipe plug and is in fourth sealing connection with the water pipe plug through waterproof glue. The sealing effect can be improved, the structure is simple, and the cost is saved.

Description

Technical Field

[0001] The utility model relates to the field of hysteroscopes, in particular to a hysteroscope with a sealing device. Background Art

[0002] Hysteroscopy is used for intrauterine examination and treatment. During use, the hysteroscope's lens allows for magnified observation of the uterine cavity. Surgical instruments can be passed through the hysteroscope to perform surgical procedures. From an examination perspective, hysteroscopy is the preferred diagnostic tool for gynecological bleeding disorders and intrauterine pathologies.

[0003] The anti-leakage structure of the universal hysteroscope currently on the market is usually unable to prevent liquid leakage during the process of inserting and removing the working instrument, which will inevitably lead to a decrease in the pressure in the uterine cavity and the hysteroscope cannot be used normally; in addition, the existing disposable hysteroscope instrument is relatively complicated in terms of anti-leakage and the entire water inlet and outlet sealing rotation, and cannot achieve a good anti-leakage effect. Summary of the Invention

[0004] In view of the deficiencies in the prior art, the utility model provides a hysteroscope with a sealing device, which has a better sealing effect, a simple structure and saves costs.

[0005] The utility model is achieved through the following technical solutions:

[0006] A hysteroscope with a sealing device comprises an operating portion and an insertion portion sealedly connected to the operating portion, wherein the operating portion comprises a sealing valve body, an operating knob, a water pipe plug, and a water pipe seat, and the insertion portion comprises an insertion tube and an instrument channel tube with one end accommodated in the insertion tube;

[0007] The front end of the operating knob is accommodated in the sealing valve body and forms a first sealing connection with the sealing valve body, the sealing valve body is accommodated in the water pipe plug and forms a second sealing connection with the water pipe plug, the water pipe seat is sleeved on the water pipe plug and forms a third sealing connection with the water pipe plug, the operating knob is used to drive the water pipe plug to rotate in the water pipe seat, waterproof glue is set between the insertion tube and the water pipe seat to form a fourth sealing connection, the other end of the instrument channel tube is accommodated in the water pipe plug and waterproof glue is set between the water pipe plug to form a fourth sealing connection.

[0008] Furthermore, a fourth through hole is provided on the water pipe plug, the front end of the sealing valve body and the operating knob is accommodated in the first through hole, a fifth through hole is provided on the water pipe seat, and the water pipe plug is accommodated in the second through hole.

[0009] Furthermore, the sealing valve body is a duckbill valve, and the sealing valve body includes a head for wrapping the outer diameter of the inserted instrument.

[0010] Furthermore, the sealing valve body also includes a tail, the rear end of which protrudes outward relative to the tail to form a sealing ring, the sealing ring abuts against the outer wall of the operating knob to form a first sealing connection, and the sealing ring abuts against the inner wall of the fourth through hole to form a second sealing connection.

[0011] Furthermore, two sealing rings are provided on the water pipe plug, and the sealing rings abut against the outer wall of the water pipe plug and the inner wall of the fifth through hole to form a third sealing connection.

[0012] Furthermore, the center lines of the operating knob, the sealing valve body and the water pipe plug are located on the same straight line.

[0013] Furthermore, the water pipe seat is also connected to a water outlet pipe for discharging water. Waterproof glue is provided between the water pipe seat and the water outlet pipe to form a fourth sealed connection. The water inlet of the water outlet pipe is located between the two sealing rings.

[0014] Furthermore, a water outlet is provided on the instrument channel tube, and the water outlet is located between the two sealing rings.

[0015] Furthermore, a water outlet ring groove is provided on the water pipe plug, and the water outlet ring groove is located between the two sealing rings.

[0016] Furthermore, the water inlet, the water outlet and the water outlet ring groove of the water outlet pipe are aligned with each other.

[0017] Compared with the prior art, the advantages of the present invention are:

[0018] 1. Multiple sealing is achieved by forming a first sealing connection between the sealing valve body and the operating knob, a second sealing connection between the sealing valve body and the water pipe plug, a third sealing connection between the water pipe plug and the water pipe seat, and a fourth sealing connection through waterproof glue, so that the sealing effect is better.

[0019] 2. The sealing valve body adopts duckbill valve, which effectively prevents the leakage of liquid during the process of instrument insertion and withdrawal, improves the sealing effect and ensures the stability of the pressure in the uterine cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a three-dimensional assembly diagram of a hysteroscope with a sealing device according to the present invention;

[0021] Figure 2 This is a right side view of a hysteroscope with a sealing device according to the present invention;

[0022] Figure 3 for Figure 2 Cross-sectional view along AA;

[0023] Figure 4 for Figure 3 A partial view of

[0024] Figure 5 for Figure 4 Enlarged view of B

[0025] Figure 6 This is a partial exploded view of a hysteroscope with a sealing device according to the present invention;

[0026] Explanation of reference numerals: 1. operating part; 11. sealing valve body; 110. tail; 112. sealing ring; 12. operating knob; 120. instrument channel entrance; 121. first ring groove; 13. pipe plug; 130. sealing ring; 131. water outlet ring groove; 136. second ring groove; 137. water outlet through hole; 138. fourth through hole; 14. pipe seat; 140. water inlet pipe; 141. water outlet pipe; 144. second through hole; 145. third through hole; 151. water inlet; 155. fifth through hole; 2. inserting part; 20. inserting tube; 203. head port; 21. instrument channel tube; 210. water outlet; 3. handle; 30. first through hole; 4. straight line; 51. water inlet pipe joint; 52. water outlet pipe joint; 53. water inlet check valve; 54. water outlet check valve. DETAILED DESCRIPTION

[0027] The following is a further non-restrictive detailed description of the technical solution of the utility model in conjunction with the preferred embodiments and the accompanying drawings. In the description of the utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the utility model, and cannot be understood as limiting the utility model.

[0028] like Figure 1As shown, a hysteroscope with a sealing device according to one embodiment of the present invention includes an operating portion 1, an insertion portion 2, and a handle 3. The bottom of the handle 3 is provided with two first through-holes 30 for passing a water inlet pipe 140 and a water outlet pipe 141. One end of the water inlet pipe 140 is connected to a water inlet pipe joint 51, which is connected to a water source (not shown in the figure). Furthermore, a water inlet check valve 53 is installed on the water inlet pipe 140 between the water inlet pipe joint 51 and the handle 3. One end of the water outlet pipe 141 is connected to a water outlet pipe joint 52, which is connected to a uterine cavity water collector (not shown in the figure). Furthermore, a water outlet check valve 54 is installed on the water outlet pipe 141 between the water outlet pipe joint 52 and the handle 3. During operation, the water inlet check valve 53 and the water outlet check valve 54 are not opened at the same time.

[0029] like Figures 2 to 4 As shown, the operating part includes an operating knob 12 and a sealing valve body 11, a water pipe plug 13 and a water pipe seat 14 arranged inside the handle 3. The operating knob 12 is penetrated to form an instrument channel entrance 120, and a first annular groove 121 is provided at the front end of the operating knob 12. Corresponding to the preferred embodiment of the present invention, the sealing valve body 11 is preferably a duckbill valve, which is used for one-way conduction, improves sealing performance, and prevents water seepage during operation. The sealing valve body 11 includes a tail 110 and a head 111. The head 111 is in a straight line shape. Under normal conditions, the sealing valve body 11 is sealed in the reverse direction. When no instrument is inserted, water will not flow out of the operating knob 12. When the instrument is inserted, the front end opening of the sealing valve body 11 will wrap the outer diameter of the instrument. The sealing valve body 11 is entirely wrapped around the front end of the operating handle 3; the rear end of the tail 110 protrudes outward relative to the tail 110 to form a sealing ring 112. The water pipe plug 13 is provided with a first through hole 138, the sealing valve body 11 is accommodated in the fourth through hole 138, and the sealing ring 12 abuts against the inner wall of the fourth through hole 138 to form a second sealed connection. When the sealing valve body 11 rotates in the water pipe plug 13, the sealing valve body 11 and the water pipe plug 13 remain sealed; the front end of the operating knob 12 is accommodated in the sealing valve body 11 and is sealed with the sealing body 11. Specifically, the sealing ring 112 is accommodated in the first annular groove 121; the sealing ring 112 abuts against the bottom surface of the first annular groove 121 to form a first sealed connection. When the operating knob 12 is rotated, the operating knob 12 and the inner wall of the water pipe plug 13 are sealed.

[0030] The front end of the water pipe plug 13 defines two second annular grooves 136, within which a sealing ring 130 is received. A fifth through-hole 155 is defined in the water pipe seat 14, within which the water pipe plug 13 is received. The sealing ring 130 abuts both the bottom surface of the second annular groove 136 and the inner wall of the fifth through-hole 155, forming a third sealing connection. When the water pipe plug 13 rotates within the water pipe seat 14, a seal remains between the water pipe plug 13 and the water pipe seat 14. The centerlines of the instrument channel inlet 120, the sealing valve body 11, and the water pipe plug 13 lie on a common line 4; the operating knob 12 drives the water pipe plug 13 to rotate within the water pipe seat 14. A water outlet annular groove 131 is defined between the two second annular grooves 136, for channeling intrauterine water into the water outlet pipe 141. A water outlet through-hole 137 is defined at the bottom of the water outlet annular groove 131, for allowing intrauterine water to flow out.

[0031] The water pipe seat 14 is provided with a second through-hole 144 and a third through-hole 145 for accommodating the water inlet pipe 140 and the water outlet pipe 141, respectively. The second through-hole 144 is located at the left end of the two second annular grooves 136, while the third through-hole 145 is located between the two second annular grooves 136 and aligned with the water outlet annular groove 131. The other end of the water inlet pipe 140 passes through the first through-hole 30 and is accommodated within the second through-hole 144. Waterproof adhesive (not shown) is applied between the inner wall of the second through-hole 144 and the outer wall of the water inlet pipe 140, forming a fourth sealed connection. The other end of the water outlet pipe 141 passes through the other first through-hole 30 and is accommodated within the third through-hole 145. Waterproof adhesive (not shown) is applied between the inner wall of the third through-hole 145 and the outer wall of the water outlet pipe 141, forming a fourth sealed connection.

[0032] The insertion portion 2 includes an insertion tube 20 and an instrument channel tube 21. The rear end of the insertion tube 20 is accommodated in the water pipe seat 14, and waterproof glue is provided between the outer wall of the insertion tube 20 and the inner wall of the water pipe seat 14, forming a fourth sealing connection through the waterproof glue. One end of the instrument channel tube 21 is accommodated in the insertion tube 20, and the other end is accommodated in the water pipe plug 13, and waterproof glue is provided between the outer wall of the instrument channel tube 21 and the inner wall of the water pipe plug 13, forming a fourth sealing connection through the waterproof glue. Among them, a water outlet 210 for flowing out of the uterine cavity water is opened on the instrument channel tube 21, and the water outlet 210, the water outlet ring groove 131 and the water inlet 151 of the water outlet tube 141 are aligned with each other, and are used to flow the uterine cavity water into the uterine cavity water collector.

[0033] During operation, the instrument enters from the instrument channel entrance 120, passes through the operating knob 12, and exits from the sealing valve body 11. The front opening of the sealing valve body 11 completely wraps the outer diameter of the instrument, so that the instrument channel direction is completely sealed. The instrument passes through the water pipe plug 13 and enters the instrument channel tube 21. The water inlet pipe joint at the bottom of the handle 3 is connected to the water source. Water enters the catheter from the water inlet pipe 140 and flows between the outer wall of the instrument channel tube 21 and the inner wall of the insertion tube 20, and flows out from the head opening 203 at the front end of the insertion tube 20 and enters the human uterine cavity. The inspection is completed through three different rotation limit operations. The uterine cavity water generated by the inspection flows out through the instrument channel tube 21, and flows out from the water outlet 210 of the instrument channel tube 21 into the water outlet ring groove 131 of the water pipe plug 13; the uterine cavity water finally flows out from the water outlet ring groove 131 into the water outlet pipe 141 and flows into the wastewater collector connected to the water outlet pipe joint 52.

[0034] A hysteroscope with a sealing device according to one embodiment of the present invention achieves multiple seals by forming a first sealing connection between the sealing valve body 11 and the operating knob 12, a second sealing connection between the sealing valve body 11 and the water pipe plug 13, a third sealing connection between the water pipe plug 13 and the water pipe seat 14, and a fourth sealing connection formed by waterproof glue, thereby preventing water leakage during use and improving the sealing effect of the hysteroscope with a sealing device during use. By configuring the sealing valve body 11 as a duckbill valve and configuring the rear end as a sealing ring 110 structure, liquid leakage is effectively prevented during the insertion and removal of the instrument, thereby improving the sealing effect and ensuring the stability of the pressure in the uterine cavity.

[0035] The above embodiments merely illustrate several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the concept of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A hysteroscope with a sealing device, comprising an operating portion (1) and an insertion portion (2) sealedly connected to the operating portion (1), wherein the operating portion (1) comprises a sealing valve body (11), an operating knob (12), a water pipe plug (13) and a water pipe seat (14), and the insertion portion (2) comprises an insertion tube (20) and an instrument channel tube (21) with one end accommodated in the insertion tube (20); It is characterized by: The front end of the operating knob (12) is accommodated in the sealing valve body (11) and forms a first sealing connection with the sealing valve body (11), the sealing valve body (11) is accommodated in the water pipe plug (13) and forms a second sealing connection with the water pipe plug (13), the water pipe seat (14) is sleeved on the water pipe plug (13) and forms a third sealing connection with the water pipe plug (13), the operating knob (12) is used to drive the water pipe plug (13) to rotate in the water pipe seat (14), a waterproof glue is provided between the insertion tube (20) and the water pipe seat (14), forming a fourth sealing connection, and the other end of the instrument channel tube (21) is accommodated in the water pipe plug (13) and a waterproof glue is provided between the water pipe plug (13) and the water pipe plug (13) to form a fourth sealing connection.

2. The hysteroscope with a sealing device according to claim 1, characterized in that: A fourth through hole (138) is provided on the water pipe plug (13), and the front ends of the sealing valve body (11) and the operating knob (12) are accommodated in the fourth through hole (138). A fifth through hole (155) is provided on the water pipe seat (14), and the water pipe plug (13) is accommodated in the fifth through hole (155).

3. The hysteroscope with a sealing device according to claim 1, characterized in that: The sealing valve body (11) is a duckbill valve, and the sealing valve body (11) comprises a head (111) for wrapping the outer diameter of an inserted instrument.

4. The hysteroscope with a sealing device according to claim 2, characterized in that: The sealing valve body (11) further includes a tail portion (110), wherein a rear end of the tail portion (110) protrudes outward relative to the tail portion (110) to form a sealing ring (112), wherein the sealing ring (112) abuts against an outer wall of the operating knob (12) to form a first sealing connection, and wherein the sealing ring (112) abuts against an inner wall of the fourth through hole (138) to form a second sealing connection.

5. The hysteroscope with a sealing device according to claim 2, characterized in that: Two sealing rings (130) are sleeved on the water pipe plug (13), and the sealing rings (130) simultaneously abut against the outer wall of the water pipe plug (13) and the inner wall of the fifth through hole (155) to form a third sealing connection.

6. The hysteroscope with a sealing device according to claim 1, characterized in that: The center lines of the operating knob (12), the sealing valve body (11) and the water pipe plug (13) are located on the same straight line (4).

7. The hysteroscope with a sealing device according to claim 5, characterized in that: The water pipe seat (14) is also connected to a water outlet pipe (141) for discharging water. Waterproof glue is provided between the water pipe seat (14) and the water outlet pipe (141) to form a fourth sealed connection. The water inlet (151) of the water outlet pipe (141) is located between the two sealing rings (130).

8. The hysteroscope with a sealing device according to claim 7, characterized in that: A water outlet (210) is provided on the instrument channel tube (21), and the water outlet (210) is located between the two sealing rings (130).

9. The hysteroscope with a sealing device according to claim 8, characterized in that: A water outlet annular groove (131) is provided on the water pipe plug (13), and the water outlet annular groove (131) is located between the two sealing rings (130).

10. The hysteroscope with a sealing device according to claim 9, characterized in that: The water inlet (151), the water outlet (210) and the water outlet ring groove (131) of the water outlet pipe (141) are aligned with each other.

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