CN116098687A

CN116098687A - Uterine lifting device and operating table

Info

Publication number: CN116098687A
Application number: CN202310077856.8A
Authority: CN
Inventors: 李晓琦; 吴小华; 郑重
Original assignee: Fudan University Shanghai Cancer Center
Current assignee: Fudan University Shanghai Cancer Center
Priority date: 2023-01-19
Filing date: 2023-01-19
Publication date: 2023-05-12

Abstract

The invention relates to the field of medical instruments, in particular to a uterine manipulator and an operating table, which can solve the problem that if the existing uterine manipulator is used with improper force in laparoscopic surgery, perforation of uterine cavity and even massive hemorrhage can be caused. The uterus lifting device comprises a uterus lifting head and a protection assembly, the uterus lifting head comprises a probe and a pressure sensor connected to the end part of the probe, the pressure sensor is electrically connected with external equipment, and the external equipment is used for receiving pressure change parameters transmitted by the pressure sensor. The protection component comprises a probe sleeve, the probe sleeve is connected to the end part of the probe and sleeved outside the pressure sensor, a protection gap is reserved between the protection component and the detection end of the pressure sensor, the protection component is made of elastic materials, and the probe sleeve is abutted to the detection end of the pressure sensor in response to the pressure applied to the probe sleeve in the direction close to the detection end of the pressure sensor.

Description

Uterine lifting device and operating table

Technical Field

The invention relates to the field of medical instruments, in particular to a uterine manipulator and an operating table.

Background

With the popularization and application of laparoscopic techniques in the gynaecology field, almost all gynecological open surgery has been replaced by laparoscopic surgery. And the laparoscopic surgery has the advantages of minimally invasive, clear visual field, quick recovery, less bleeding and the like, which cannot be exceeded by the open surgery.

Most gynecological laparoscopic surgery is not separated from an important surgical instrument, namely a uterine manipulator. The original design of the uterine manipulator is used for manipulating the uterine cavity to generate proper tension, expose the operation space or conveniently reach special parts in the abdominal cavity and the pelvic cavity, so that the application of the uterine manipulator provides important guarantee for the exposure of the female pelvic cavity operation visual field.

However, when the existing uterine manipulator is used, if the force applied to the uterine manipulator is too strong, the uterine manipulator may cause perforation of a uterine cavity, and furthermore, the uterine manipulator may also pass out of the uterine cavity, so that the uterine manipulator may cause great bleeding caused by puncturing blood vessels.

Disclosure of Invention

The invention aims to provide a uterine manipulator and an operating table, which are used for solving the technical problems that if the existing uterine manipulator is used with improper force in laparoscopic surgery, perforation of a uterine cavity and even massive hemorrhage are caused.

In order to achieve the above purpose, the present invention provides the following technical solutions:

in a first aspect, the present application provides a uterine manipulator comprising:

the uterus lifting head comprises a probe and a pressure sensor connected to the end part of the probe, wherein the pressure sensor is electrically connected with external equipment, and the external equipment is used for receiving pressure change parameters transmitted by the pressure sensor.

The protection assembly comprises a probe sleeve, the probe sleeve is connected to the end part of the probe and sleeved outside the pressure sensor, a protection gap is reserved between the protection assembly and the detection end of the pressure sensor, the protection assembly is made of elastic materials, and the probe sleeve is abutted to the detection end of the pressure sensor in response to the pressure applied to the probe sleeve in the direction close to the detection end of the pressure sensor.

Furthermore, a first cavity is formed in the probe sleeve, the pressure sensor is located in the first cavity, a protective gap is formed between the detection end of the pressure sensor and the cavity wall of the first cavity, and the probe sleeve is provided with air holes communicated with the first cavity.

Further, a protrusion is arranged on the edge of the opening of the probe sleeve, which faces the probe, an annular groove is formed in one end of the probe, which faces the probe sleeve, and the protrusion is located in the annular groove and is clamped with the annular groove.

Further, a blocking film is arranged in the ring groove, the side wall of the protrusion away from the probe is abutted against one side of the blocking film, which is close to the protrusion, the distance between the blocking film and the bottom of the ring groove is larger than or equal to the distance between the inner wall of the probe sleeve away from the probe and the pressure sensor, and the outer peripheral wall of the protrusion is abutted against the inner wall of the ring groove.

Further, an elastic clamping portion is arranged on the outer wall of the protrusion, and the outer peripheral wall of the elastic clamping portion is in butt joint with the inner wall of the annular groove.

Further, an elastic clamping portion is arranged on the side wall of the protrusion, a clamping groove is formed in the groove wall of the annular groove, the clamping groove is located between the blocking film and the groove bottom of the annular groove, and after the protrusion passes through the blocking film, the elastic clamping portion is located in the clamping groove and is clamped with the clamping groove.

Further, the protection component further comprises an imbedding rod, the imbedding rod is sleeved outside the probe, and the telescopic section of the probe is positioned in the imbedding rod; the end of the insertion rod, which is close to the probe, is provided with a bearing, and the probe passes through the bearing towards the end of the pressure sensor and extends to the outside of the bearing.

Further, the bearing piece is cylindric, just the bearing piece orientation pressure sensor's one end has seted up the holding tank, the notch edge of holding tank is provided with a plurality of bumps, and is a plurality of the connecting wire of bump is in be the wave on the cross-section of bearing piece axis.

Further, the uterine manipulator further comprises an introduction piece, wherein the introduction piece is positioned in the accommodating groove, and the introduction piece is of a conical structure with the caliber gradually decreasing along the direction from the insertion rod to the probe;

and the surface bending disc of the guide-in part is provided with a spiral structure from the bearing part to the pressure sensor.

Further, one end of the imbedding rod, which is far away from the probe, is connected with a holding assembly, and the holding assembly is connected with a power mechanism for driving the telescopic section of the probe to move.

Further, the power mechanism includes:

the holding component is fixed on the fixing component at one end far away from the imbedding rod;

the driving piece is arranged at one end of the fixing piece, which is away from the probe, and one end of the probe, which is away from the pressure sensor, penetrates through the fixing piece and is in transmission connection with the driving part of the driving piece.

Further, a second cavity is formed in the fixing piece, and the position, at which the probe is connected with the output shaft of the driving piece, is located in the second cavity;

the pressure release device comprises a pressure sensor, a pressure release channel, a pressure release hole, a pressure release cavity and a pressure release cavity, wherein the pressure release channel is arranged in the probe, the pressure release hole is formed in one side of the probe, facing the pressure sensor, and is communicated with the pressure release channel, and one end, far away from the pressure sensor, of the pressure release channel is communicated with the second cavity;

the fixing piece is further provided with a pressure relief interface communicated with the second cavity, and the pressure relief interface is connected with an external pressure relief device.

Further, the uterus lifting device further comprises an air bag, the air bag is arranged at one end of the imbedding rod, which faces the probe, an air guide interface is arranged on the air bag and is used for being connected with an external air source to realize expansion or compression.

Further, the uterus lifting device further comprises a cuff ball, the cuff ball is sleeved at one end of the probe, which is far away from the imbedding rod, and the cuff ball is located between the supporting piece and the pressure sensor.

In order to achieve the above object, the present application further proposes an operating table, comprising:

a bed body;

the fixed bracket is arranged on the bed body;

the uterine manipulator according to any one of the first aspect, wherein the uterine manipulator is disposed on the fixing bracket.

Compared with the prior art, the application has at least one of the following technical effects:

the uterus lifting head comprises a probe and a pressure sensor arranged at the end part of the probe, the pressure sensor is wrapped in the probe sleeve, a protective gap is reserved between the probe sleeve and the detection end of the pressure sensor, the probe sleeve plays a role in protecting the pressure sensor, the pressure sensor is not easy to damage, the protective gap is beneficial to enabling the pressure sensor not to be triggered and calibrated easily before being used, and further the pressure sensor can have higher precision in the subsequent use process of the uterus lifting device;

when medical staff needs to use the uterus lifting machine, the protective gap can be reduced until the protective gap disappears by pressing the probe sleeve, so that the probe sleeve is abutted with the detection end of the pressure sensor, the detection end of the pressure sensor is triggered, and the calibration of the pressure sensor is completed;

and then, placing the uterine cavity with the uterine cavity lifting head, when the pressure sensor is abutted against the inner wall of the uterine cavity through the outer surface of the probe sleeve, receiving the pressure difference parameter between the probe sleeve and the inner wall of the uterine cavity, displaying the pressure difference parameter on external equipment, and facilitating medical staff to know the probe placement force by observing real-time data of the pressure difference parameter on the external equipment, thereby controlling the probe placement force, further ensuring that the probe is inserted into the uterine cavity to be proper in depth, effectively reducing the possibility of uterine cavity perforation and even uterine cavity massive hemorrhage accidents caused by overlarge placement force of the uterine cavity lifting device, and also reducing the possibility of iatrogenic stirring and scattering situations of tumors.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic perspective view of a uterine lifter according to an embodiment of the present invention;

fig. 2 is a schematic view of another angle of a uterine lifter according to an embodiment of the present invention;

fig. 3 is a schematic partial cross-sectional view of a uterine-lifting head in a uterine-lifting device according to an embodiment of the invention;

fig. 4 is a schematic partial cross-sectional view showing the connection relationship of probe cover and probe in a uterine manipulator according to an embodiment of the present invention;

FIG. 5 is an enlarged view of portion N of FIG. 4;

fig. 6 is a schematic partial cross-sectional view showing another connection relationship of probe cover and probe in a uterine manipulator according to an embodiment of the present invention;

FIG. 7 is an enlarged view of portion K of FIG. 4;

fig. 8 is a cross-sectional view of a uterine manipulator according to an embodiment of the invention;

fig. 9 is a schematic perspective view of another structure of a uterine lifter according to an embodiment of the present invention;

fig. 10 is a schematic partial sectional view showing the internal structure of the fixing member in a uterine manipulator according to an embodiment of the present invention;

fig. 11 is a schematic view showing an operating state of an operating table according to an embodiment of the present invention.

Reference numerals:

10. lifting a uterus head; 11. a probe; 12. a pressure sensor; 20. a protective assembly; 21. a probe cover; 212. a barrier film; 213. a protrusion; 2131. an elastic clamping part; 22. a support; 23. a grip lever; 24. a cuff balloon; 25. an introduction member; 26. a spiral structure; 27. an air bag; 28. a rod is placed in; 31. a fixing member; 311. a pressure relief interface; 32. a cylinder; 40. a bed body; 50. a fixing bracket; 101. a protective gap; 102. a first cavity; 103. a ring groove; 104. a clamping groove; 105. a receiving groove; 106. a second cavity; 107. a pressure relief channel; 108. and the pressure relief hole.

Detailed Description

The following description of the embodiments of the present invention will be made more clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

It will also be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.

The following describes the technical solutions in the embodiments of the present application in detail with reference to the drawings in the embodiments of the present application.

With the popularization and application of laparoscopic techniques in the gynaecology field, almost all gynecological open surgery has been replaced by laparoscopic surgery. And most gynecological laparoscopic surgery needs to use a uterine manipulator, wherein the uterine manipulator is a device for lifting and pulling the uterine cavity to all directions, and is mainly used for pulling the uterine cavity in the laparoscopic hysterectomy process, so that the operation difficulty in the hysterectomy process is reduced. In the actual use process, the part of the uterine manipulator extending into the abdominal cavity has the function of generating proper tension on the uterine cavity so as to enable the uterine cavity or the abdominal cavity and the like to expose an operation space; in addition, the uterus lifter can conveniently reach certain special parts in the pelvic cavity so as to facilitate the medical staff to perform related operation.

However, in laparoscopic surgery, if the current uterine manipulator is used too hard, the uterine manipulator may cause perforation of the abdominal cavity, and even pass out of the abdominal cavity, so that blood vessels puncture, human body bleeding and iatrogenic scattering of tumors may be caused.

Wherein, for the iatrogenic scattering of tumors caused by improper use of uterine manipulator, the following basis exists:

firstly, according to the macroscopic damage hypothesis, during the placement and use of any uterine manipulator (with or without a balloon), the barrier effect of the muscular layer of the uterine cavity may be weakened due to the presence of the uterine manipulator (especially when the uterine manipulator is used in the atrophic uterine cavity), at this time, if the force for lifting Gong Qiyong is improper, iatrogenic dispersion is easily generated, which easily causes the uterine cavity to be ruptured, and causes the tumor to spread to the peritoneal cavity and the operation area.

Secondly, in the microscopic pathway hypothesis of propagation, it is pointed out that the use of the uterine manipulator can significantly increase the pressure in the uterine cavity, at this time, according to Pascal's law (Pascal principle), the uterine manipulator can cause the whole abdominal cavity to expand, the pressure in the abdominal cavity increases the capacity of tumor cells to surpass the barrier of the muscular layer of the uterine cavity, and the tumor cells are passively diffused out of the uterine cavity through the fallopian tube and lymphatic vessels, so that iatrogenic dispersion is caused, and therefore, the condition of iatrogenic dispersion in the abdominal cavity is difficult to occur due to pressure surge by controlling the force application degree of the uterine manipulator.

Therefore, in the use process of the uterine manipulator, after the uterine manipulator stretches into the abdominal cavity, the contact force between the uterine manipulator and the inner wall of the abdominal cavity needs to be strictly and accurately controlled, the possibility of abdominal cavity perforation, hemorrhage or intestinal rupture and the like caused by too strong force on the uterine manipulator Gong Qiyong is reduced, and the possibility of iatrogenic scattering is reduced.

In view of this, as shown in fig. 1-8, in a first aspect, the present application proposes a uterine manipulator to solve the disadvantage that the force of the existing uterine manipulator cannot be mastered in laparoscopic surgery, so that when the force of using the uterine manipulator is large, the condition of puncturing the abdominal cavity is easy to occur.

Referring to fig. 1-3, the uterine manipulator provided in the present application includes a holding assembly, a protecting assembly 20, and a uterine manipulator head 10 disposed at one end of the holding assembly. The uterine manipulator 10 comprises a probe 11 and a pressure sensor 12 connected to one end of the probe 11 far away from the holding assembly, wherein the pressure sensor 12 is electrically connected with external equipment, and the external equipment is used for receiving pressure change parameters transmitted by the pressure sensor 12. The end of probe 11 remote from pressure sensor 12 is connected to a gripping assembly.

As shown in fig. 3, the protection assembly 20 includes a probe cover 21, the probe cover 21 is connected to an end of the probe 11 far away from the end of the holding assembly, a protection gap 101 is left between the probe cover 21 and a detection end of the pressure sensor 12, and the probe cover 21 is made of an elastic material. In response to the probe cover 21 receiving pressure in a direction approaching the detection end of the pressure sensor 12, the probe cover 21 abuts against the detection end of the pressure sensor 12. The protection gap 101 is present to make the detection end of the pressure sensor 12 less prone to damage due to false touches.

The length direction of the probe cover 21 and the length direction of the probe 11 may be in a straight line, and the detection end of the pressure sensor 12 may be located in the length direction of the probe 11. The external device can be a computer, a bracelet, a mobile phone, an ipad and other devices with a display screen. The medical staff can operate the whole uterine manipulator through the handheld holding assembly, for example, the uterine manipulator 10 is controlled through the holding assembly to be placed in the uterine cavity, the holding assembly can be fixed with an external instrument, at the moment, the medical staff is not required to hold the uterine manipulator, and the function of liberating hands of the medical staff is achieved.

In some possible implementations, as shown in fig. 3, a first cavity 102 is formed inside the probe cover 21, the pressure sensor 12 is located in the first cavity 102, and a protective gap 101 is formed between a detection end of the pressure sensor 12 and a cavity wall of the first cavity 102.

It will be appreciated that the probe cover 21 needs to have a certain soft property, that is, the probe cover 21 is made of an elastic soft material, the elastic soft material may be a silica gel material or a sponge material, etc., and the silica gel material may be polyurethane, so that on the basis that the probe cover 21 can be deformed, the possibility of damage to the interior of the uterine cavity caused by hard contact of the probe 11 with the inner wall of the uterine cavity is reduced.

The force for pressing the probe cover 21 may be set according to the material of the probe cover 21 or the size of the guard gap 101, and is not particularly limited.

Before using the uterine manipulator, the medical staff can lightly press the probe sleeve 21 to reduce the protective gap 101 until the protective gap disappears, so that the inner wall of the probe sleeve 21 is abutted with the detection end of the pressure sensor 12 to trigger the detection end of the pressure sensor 12, and the calibration of the pressure sensor 12 is completed. That is, if the guard gap 101 were not present, there may be instances where the pressure sensor 12 was inadvertently triggered to calibrate, thereby resulting in inaccurate accuracy in subsequent use.

It should be noted that, the calibration process of the pressure sensor 12 may also be completed in the uterine cavity, specifically, after the medical staff slowly places the probe 11 into the uterine cavity, the probe sleeve 21 is slowly abutted against the inner wall of the uterine cavity, and slightly applies force, so that the probe sleeve 21 is stressed and compressed and deformed, the protection gap 101 is reduced until the protection gap disappears, so that the inner wall of the probe sleeve 21 is abutted against the detection end of the pressure sensor 12, and the detection end of the pressure sensor 12 is triggered, thereby completing the calibration.

The use process of the uterus lifter comprises the following steps: when the uterine manipulator is needed to be used, after the calibration of the pressure sensor 12 is finished outside or inside a human body, the probe 11 and the probe sleeve 21 are placed in the uterine cavity, when the pressure sensor 12 is abutted against the inner wall of the uterine cavity through the outer surface of the probe sleeve 21, the pressure sensor 12 receives the pressure difference parameter between the probe sleeve 21 and the inner wall of the uterine cavity, the pressure difference parameter is displayed on external equipment, medical staff can know the placement force of the probe 11 by observing real-time data of the pressure difference parameter on the external equipment conveniently, the placement force of the probe 11 is controlled according to the placement force, the insertion depth of the probe 11 into the uterine cavity is proper, the possibility of perforation of the uterine cavity and even bleeding accidents in the uterine cavity caused by overlarge placement force of the uterine manipulator is effectively reduced, and the possibility of iatrogenic scattering of tumors is also reduced.

In order to further prevent the medical staff from applying excessive force to the uterine manipulator, in some embodiments, when the medical staff manually operates the uterine manipulator to place the uterine manipulator into the uterine cavity of the human body, the upper limit value of the placement force of the uterine manipulator can be set on the external device, that is, the maximum value of the pressure difference parameter transmitted by the pressure sensor 12 on the external device is set, and the external device can give an alarm when the placement force of the uterine manipulator is greater than the upper limit value. At this time, in the process that the medical staff slowly inserts the probe 11 into the uterine cavity, if the probe sleeve 21 abuts against the inner wall of the uterine cavity and the insertion force exceeds the upper limit value, the external device gives an alarm, and the medical staff can immediately stop inserting the uterine manipulator or lighten the force applied to the uterine manipulator.

In some possible implementation manners, in order to make the inner wall of the probe cover 21 fit the detection end of the pressure sensor 14 more conveniently and rapidly, the surface of the probe cover 21 is provided with an air hole communicated with the first cavity 102, and when the probe cover 21 receives a pressing force, the air in the protection gap 101 is discharged from the air hole, so that the protection gap 101 disappears, and then the inner wall of the probe cover 21 is abutted against the detection end of the pressure sensor 12.

The number of the ventilation holes can be multiple, and the ventilation holes are uniformly distributed on the surface of the probe cover 21. It can be understood that if the probe cover 21 is made of a sponge material, the air holes are air hole gaps of the sponge material.

There are various connection modes between the probe cover 21 and the probe 11, for example, the probe cover 21 and the probe 11 may be fixed by bonding, in some embodiments, as shown in fig. 4 and 5, an annular protrusion 213 is integrally connected to an opening edge of the probe cover 21 facing the probe 11, one end of the probe 11 facing the probe cover 21 is provided with a ring groove 103 along a circumferential direction thereof, and the protrusion 213 is located in the ring groove 103 and is clamped with the ring groove 103. The material of the protrusion 213 is the same as that of the probe cover 21, and the outer peripheral wall of the protrusion 213 abuts against the inner wall of the ring groove 103.

By the technical scheme in the above embodiment, no matter whether the probe 11 is inside or outside the human body, the probe sleeve 21 will not move when the probe sleeve 21 is pressed, and at this time, the probe sleeve 21 can be reset, but the normal use of the uterine manipulator is not affected.

In some possible implementations, in order to prevent the probe cover 21 from being reset after being pressed, so that the inner wall of the probe cover 21 always abuts against the detection end of the pressure sensor 12, the protrusion 213 needs to move towards the ring groove 103 again after the probe cover 21 is pressed, and the length of the ring groove 103 can be lengthened, as shown in fig. 6 and 7, so that the protrusion 213 can continue to move in the ring groove 103 after being pressed, so that the cavity wall of the probe cover 21 is fitted to the detection end of the pressure sensor.

In some possible implementations, a blocking film 212 may be embedded in a middle position of the ring groove 103, where a side wall of the protrusion 213 away from the probe 11 abuts against a side of the blocking film 212 near the protrusion 213, and an outer peripheral wall of the protrusion 213 abuts against an inner wall of the ring groove 103. The distance between the blocking film 212 and the groove bottom of the ring groove 103 is greater than or equal to the distance between the inner wall of the probe cover 21 away from the probe 11 and the detection end of the pressure sensor 12, that is, after the protrusion 213 passes through the blocking film 212 and continues to move in the ring groove 103, the protection gap 101 can disappear.

When the probe cover 21 is forced to approach the probe 11, the probe cover 21 is forced to compress and deform and moves towards the bottom of the ring groove 103, at this time, the blocking film 212 is forced to break, the protrusion 213 further moves into the ring groove 103 until the protective gap 101 disappears, the cavity wall of the first cavity 102 abuts against the detection end of the pressure sensor 12, and the detection end of the pressure sensor 12 is triggered, so that calibration is completed. In addition, the presence of the barrier film 212 also makes the protrusion 213 less likely to move due to the probe cover 21 being touched by mistake.

In some embodiments, in order to ensure that the probe cover 21 is always stably connected to the ring groove 103, the first cavity 102 may be continuously disappeared after the uterine manipulator is calibrated, at this time, as shown in fig. 7, a protruding elastic clamping portion 2131 may be fixedly connected to the outer peripheral wall of the protrusion 213, the elastic clamping portion 2131 is a block or ring structure made of the same material as the protrusion 213, the outer wall of the elastic clamping portion 2131 abuts against the wall of the ring groove 103, and an elastic member may be disposed between the elastic clamping portion 2131 and the protrusion 213.

It is understood that the cross-sectional shape of the elastic clamping portion 2131 at the axis of the probe 11 may be polygonal.

In some possible implementations, a plurality of deformation grooves (not shown) may be formed on the surface of the elastic clamping portion 2131, where the deformation grooves may accommodate the deformed portion when the elastic clamping portion 2131 deforms, so as to avoid excessive wear on the surface of the elastic clamping portion 2131.

After the protrusion 213 is disposed in the ring groove 103, the elastic clamping portion 2131 disposed on the outer wall of the protrusion 213 can be pressed against the groove wall of the ring groove 103 to generate a larger friction force, so that the elastic clamping portion 2131 deforms and acts against the groove wall of the ring groove 103, thereby forming an interference fit between the protrusion 213 and the ring groove 103 and ensuring that the protrusion 213 is stably fixed in the ring groove 103.

In some possible implementations, in order to further firmly connect the protrusion 213 with the probe 11, as shown in fig. 7, a clamping groove 104 is formed on the groove wall in the ring groove 103, the clamping groove 104 is located between the blocking film 212 and the groove bottom of the ring groove 103, and after the protrusion 213 passes through the blocking film 212, the elastic clamping portion 2131 is located in the clamping groove 104.

After the probe cover 21 receives the load force in the direction close to the probe 11 for the first time, the probe cover 21 will displace towards the probe 11, after the protrusion 213 passes through the blocking film 212 and further displaces towards the groove bottom of the annular groove 103 by a certain distance, the elastic clamping portion 2131 enters the clamping groove 104 and is clamped in the clamping groove 104, so that the protrusion 213 is not easy to move out, and the probe cover 21 is not easy to recover due to rebound, so that the protective gap 101 will not appear again, and at this time, the probe cover 21 is not required to be pressed until the inner cavity wall of the probe cover 21 is attached to the detection end of the pressure sensor 12 each time, so as to obtain the pressure detected by the pressure sensor 12.

In some embodiments, as shown in FIG. 8, shield assembly 20 further includes an insertion rod 28, insertion rod 28 is sleeved outside probe 11, and the telescoping section of probe 11 is positioned within insertion rod 28. The end of the insertion rod 28 near the probe 11 is sleeved with the support 22, and the end of the probe 11 facing the pressure sensor 12 passes through the support 22 and extends to the outside of the support 22. Both the insertion rod 28 and the support 22 are made of a flexible material. After insertion rod 28 is slowly inserted into the patient, the cervical os position may be fixed by support 22 to support the anterior position of the uterine cavity.

For example, as shown in fig. 8, the support 22 has a cylindrical structure, and an end of the support 22 facing the pressure sensor 12 is provided with a receiving groove 105, a notch edge of the receiving groove 105 is provided with a plurality of protruding points, and a connecting line of the plurality of protruding points is in a wave shape on a section of a central axis of the support 22. At this time, the support 22 can be suitable for cervical mouths of most patients, and the wavy line edges formed by the plurality of protruding points at the edge of the support 22 can help to support the cervical mouths of the patients in the accommodating groove 105, so that the support 22 can be fixed in the uterine cavity of the patients.

It will be appreciated that the connection between the support 22 and the insertion rod 28 may be a removable connection, such as a threaded connection between the support 22 and the insertion rod 28. This facilitates easy replacement of the support 22, which support 22 plays a critical role in actual operation.

It should be noted that the dimensions of the various components of the uterine manipulator of the present application may be standardized as desired, for example, the dimensions of the support 22 may vary, as the uterine cavity and vagina are large and small, the cervix and vagina of young women are wide, a large support 22 is required, and the cervix and vagina of elderly women are atrophic, and the support dimensions are relatively small.

As another embodiment, the support 22 may be a hollow structure made of a special thermal expansion material, i.e. the support 22 has a cavity for filling liquid therein, and at this time, when the cavity inside the support 22 is filled with a liquid capable of thermal expansion and sensitive to temperature response, the support 22 can be slowly expanded by the temperature of the liquid in the cavity inside the support 22 after entering the vagina, so as to firmly clamp on the cervix. That is, the magnitude of the expansion of the support 22 may be limited to just stretching the vagina, i.e., stopping the expansion, and may be accomplished by controlling the temperature inside the support 22.

In some embodiments, the uterine manipulator of the present application may be a disposable device or a device that can be repeatedly used, without limitation.

In some implementations, as shown in connection with fig. 8 and 9, the uterine manipulator further includes a cuff balloon 24, the cuff balloon 24 being disposed over an end of the probe 11 adjacent the probe cover 21, the cuff balloon 24 being disposed between the support 22 and the pressure sensor 12. After insertion of the insertion rod 28 into the uterine cavity, the cuff ball 24 can better abut against other positions of the inner wall of the uterine cavity, at which time the medical staff is facilitated to control the position of the probe 11 to adjust the uterine cavity.

It will be appreciated that the surface of the cuff balloon 24 is required to be smooth to avoid abrasion damage to the intrauterine wall caused by the surface of the cuff balloon 24.

In some possible embodiments, in order to further fix the cervical os of the uterine cavity to the support 22, as shown in fig. 8, the uterine manipulator further comprises an introduction member 25, wherein the introduction member 25 is located in the receiving groove 105, and wherein the introduction member 25 has a tapered structure with a diameter gradually decreasing along the direction from the insertion rod 28 to the probe 11, that is, one end of the introduction member 25 facing the pressure sensor 12 has a tip end with a smaller diameter. In the process of placing the probe 11, the medical staff firstly enters the cervical orifice at the tip end of the introduction member 25, and slowly struts the cervical orifice by utilizing the conical structure of the introduction member 25, and can be mutually fixed with the cervical orifice.

As a possible implementation, the outer surface curvature of the lead-in 25 is provided with a spiral structure 26, as shown in fig. 8, in the direction from the support 22 to the pressure sensor 12. The cervical orifice of the uterine cavity can be further fixed on the supporting piece 22 by utilizing the spiral body structure 26 to be abutted against the cervical orifice, so that the applicability of the uterine lifter is improved.

In order to avoid damage to organ tissues caused by the spiral structure 26, a chamfer is provided at the outer edge of the spiral structure 26 in the length direction, and the chamfer makes the whole spiral structure 26 round and smooth.

In some embodiments, because of the positive pressure within the uterine cavity, if the patient is in communication with external air pressure, air should enter the patient's body vaginally, causing cervical tumors to enter the uterine cavity. Therefore, in order to avoid the connection between the uterine cavity and the vagina and the external air pressure after the insertion rod 28 is inserted into the patient, the uterine manipulator further comprises an air bag 27, wherein the air bag 27 is sleeved at the end of the insertion rod 28 far away from the supporting member 22, and an air guide interface is arranged on the air bag 27 and is used for being connected with an external air source to realize expansion or compression.

Specifically, when the medical staff places the placing rod 28 into the vagina for a certain distance and the air bag 27 partially enters the vagina, an external air source can be started to expand the air bag 27 so as to fill the gap between the vaginal wall and the placing rod 28 and isolate the air pressure communication channel between the inside and the outside of the patient, thereby effectively reducing the possibility of surgical safety accidents caused by the increase of the intrauterine pressure due to the uterine device.

As shown in fig. 9, the holding component is a holding rod 23, the holding rod 23 is integrally connected to one side of the insertion rod 28 away from the probe 11, and the holding rod 23 is sleeved outside the probe 11. The grip lever 23 can be used for holding and securing by a medical person, and can reduce the possibility of the medical person grasping the placement lever 28 in a mess and contaminating the placement lever 28.

To further facilitate the holding of the medical staff, the holding rod 23 is integrally connected with a plurality of handles, as an example, two handles are provided, and the two handles are on the same straight line, or the included angle between the two handles is 45 °.

In some possible implementations, as shown in fig. 9, to relieve hands of the medical staff and reduce the intensity of the operation of the medical staff, a power mechanism may be disposed at an end of the holding rod 23 away from the placement rod 28, and the power mechanism may be any structure capable of driving the telescopic section of the probe 11 to move along the length direction of the probe 11. The power mechanism can adopt a motor and a screw rod mechanism which are in transmission connection with the probe 11.

As an example, as shown in fig. 9, the power mechanism includes a fixing member 31 and a driving member, when the driving member is a cylinder 32, the fixing member 31 is integrally connected to an end of the holding rod 23 far from the placement rod 28, a cylinder body of the cylinder 32 is fixed to an end of the fixing member 31 far from the probe 11 by a bolt, and an end of the probe 11 far from the pressure sensor 12 penetrates through the fixing member 31 and is in transmission connection with an output shaft of the cylinder 32. The cross-sectional diameter of the fixing member 31 is larger than that of the insertion rod 28, and the fixing member 31 may have a truncated cone-like structure, and the specific structure of the fixing member 31 is not limited herein.

The medical staff can know the imbedding force of the probe 11 through the pressure difference parameter transmitted to the external equipment by the pressure sensor 12 in real time, and can conveniently drive the probe 11 to perform telescopic operation through the external equipment control cylinder 32 at the moment. Specifically, the external device may be an intelligent medical device, and the air cylinder 32 may be electrically connected to the intelligent medical device, so that medical staff may input the depth of insertion of the probe 11 and the force of insertion in the intelligent external device, and the air cylinder 32 controls the probe 11 to implement insertion, thereby reducing the uterine cavity perforation accident caused by human error operation or overlarge insertion force.

It can be appreciated that the fixing piece 31 of the present application can also be fixedly connected with the manipulator and other instruments on the operation table, and the manipulator and other instruments are utilized to fix the whole uterus lifting device, so that the function of liberating both hands of medical staff can be achieved, and the manipulator and other instruments are utilized to fix the uterus lifting device, so that the possibility of shaking the uterus lifting device can be reduced, and the safety of operation performed by using the uterus lifting device is further improved.

In some possible implementation manners, in order to facilitate the medical staff to adjust the pressure inside the uterine cavity, as shown in fig. 9 and 10, a second cavity 106 is formed in the fixing member 31, the position of the output shaft of the probe 11 and the cylinder 32 is located in the second cavity 106, a pressure release channel 107 is formed inside the probe 11, and, as shown in fig. 8, a pressure release hole 108 communicating with the pressure release channel 107 is formed on one side of the probe 11 facing the pressure sensor 12, one end of the pressure release channel 107 away from the pressure sensor 12 is communicated with the second cavity 106, a pressure release interface 311 communicating with the second cavity 106 is further formed in the fixing member 31, and the pressure release interface 311 is connected with an external pressure release device.

In this way, the blocking of the pressure inside the pressure relief channel 107 is not blocked during the expansion and contraction of the probe 11 driven by the cylinder 32. After the probe 11 enters the cavity, the pressure relief device can be started, so that the air pressure in the uterine cavity is communicated with the pressure relief device through the pressure relief hole 108, the pressure relief channel 107, the second cavity 106 and the pressure relief interface 311 in sequence, and the air pressure in the uterine cavity can be conveniently regulated.

It will be appreciated that an air pressure sensor may be provided in pressure relief channel 107 to facilitate real-time monitoring of the pressure in the uterine cavity after probe 11 has entered the cavity.

Referring to fig. 11, in a second aspect, the present application further proposes an operating table including a table body 40, a fixing bracket 50, and the uterus lifter of the first aspect described above, the fixing bracket 50 is connected to the table body 40 by a bolt, the uterus lifter is connected to the fixing bracket 50 by a fixing member 31, and as an example, the fixing member 31 is fixed to the fixing bracket 50 by a rope binding. The detailed structure of the uterine manipulator refers to the above embodiments, and because the operating table adopts all the technical schemes of all the embodiments, the uterine manipulator at least has all the beneficial effects brought by the technical schemes of the embodiments, and the detailed description is omitted herein.

Through adopting the operation table in this application, help medical personnel to carry out laparoscopic surgery smoothly, in whole laparoscopic surgery in-process, be difficult for because of lifting palace ware improper hard and appear the incident.

In some embodiments, the vaginal leakage causes air, blood and tumor to be sprayed on the face of the uterine elevator during the process of taking the uterine cavity out of the vagina after the vagina is incised during the operation. Therefore, the fixing bracket 50 may be fixed with the transparent protection net by bolts to reduce the possibility of the occurrence of the above-mentioned situation.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

The above description of the preferred embodiments of the present invention should not be taken as limiting the scope of the invention, but rather should be understood to cover all modifications, variations and adaptations of the present invention using its general principles and the following detailed description and the accompanying drawings, or the direct/indirect application of the present invention to other relevant arts and technologies.

Claims

1. A uterine manipulator, characterized in that it comprises:

2. The uterine manipulator according to claim 1, wherein a first cavity is formed in the probe sleeve, the pressure sensor is located in the first cavity, the detection end of the pressure sensor and the cavity wall of the first cavity form the protection gap, and the probe sleeve is provided with ventilation holes communicated with the first cavity.

3. The uterine manipulator of claim 2, wherein the probe sheath is provided with a protrusion towards the open edge of the probe, an annular groove is provided at an end of the probe towards the probe sheath, and the protrusion is located in the annular groove and is engaged with the annular groove.

4. A uterine manipulator according to claim 3, characterized in that a blocking film is arranged in the ring groove, the side wall of the bulge away from the probe is abutted against one side of the blocking film close to the bulge, the distance between the blocking film and the bottom of the ring groove is larger than or equal to the distance between the inner wall of the probe sleeve away from the probe and the pressure sensor, and the outer peripheral wall of the bulge is abutted against the inner wall of the ring groove.

5. The uterine manipulator according to claim 4, characterized in that an elastic clamping part is arranged on the outer wall of the bulge, and the outer peripheral wall of the elastic clamping part is abutted against the inner wall of the annular groove.

6. The uterine manipulator according to claim 5, wherein a clamping groove is formed in the groove wall of the annular groove, the clamping groove is located between the blocking film and the groove bottom of the annular groove, and the elastic clamping portion is located in the clamping groove and is clamped with the clamping groove after the protrusion passes through the blocking film.

7. The uterine manipulator of claim 1, wherein the guard assembly further comprises an insertion rod that is sleeved outside the probe and the telescoping section of the probe is positioned within the insertion rod;

the end of the insertion rod, which is close to the probe, is provided with a bearing, and the probe passes through the bearing towards the end of the pressure sensor and extends to the outside of the bearing.

8. The uterine manipulator according to claim 7, characterized in that the support member is cylindrical, and an accommodating groove is provided at one end of the support member facing the pressure sensor, a plurality of protruding points are provided at the edge of the notch of the accommodating groove, and the connecting lines of the protruding points are wavy on the cross section of the central axis of the support member.

9. The uterine manipulator of claim 8, further comprising an introducer positioned within the receiving slot and having a tapered configuration with a diameter that decreases in a direction from the insertion rod to the probe;

10. A uterine manipulator according to any of claims 1-9, characterized in that the end of the insertion rod remote from the probe is connected with a gripping assembly, which is connected with a power mechanism for driving the telescopic section of the probe to move.

11. A uterine manipulator according to claim 10, characterized in that the power mechanism comprises:

12. The uterine manipulator according to claim 11, characterized in that a second cavity is provided in the fixing member, and the position of the probe connected with the output shaft of the driving member is located in the second cavity;

13. The uterine manipulator of claim 7, further comprising an air bag disposed at an end of the placement rod distal from the probe, the air bag having an air port thereon for connection to an external air source.

14. The uterine manipulator of claim 7, further comprising a cuff ball that is positioned over an end of the probe distal to the placement rod, the cuff ball being positioned between the support and the pressure sensor.

15. An operating table, characterized in that it comprises:

a bed body;

the fixed bracket is arranged on the bed body;

a lifting device as claimed in any one of claims 1 to 14, which is attached to the mounting bracket.

16. The surgical bed of claim 15, wherein the mounting bracket is coupled to a transparent protective mesh.