Operation traction device

Abstract

The invention discloses a surgical traction device, and relates to the technical field of medical instruments, the surgical traction device comprises a traction part, a traction cavity is arranged in the traction part, the traction cavity is used for being communicated with a negative pressure device to form negative pressure in the traction cavity, and a plurality of traction holes communicated with the traction cavity are formed in the traction part, namely, the traction holes are communicated with the traction cavity. The traction part is matched with the traction hole through the traction cavity in the traction part, after the traction part is communicated with the negative pressure device, the negative pressure device enables the interior of the traction cavity to be kept in a negative pressure state, at the moment, the traction hole in the traction part is in an air suction state, and the tumor tissue can be adsorbed by making the traction part make contact with the tumor tissue; the included angle between the center line of the handheld part and the center line of the traction part is not zero, a user can move the tumor by taking the handheld part, zero extrusion traction is achieved, the parathyroid gland tumor is prevented from being broken, the view shielding of the traction device to the user is reduced, and it is guaranteed that the surgical view is clear.

Description

Technical Field

[0001] The present invention relates to the technical field of medical instruments, and more particularly to a surgical traction device. Background Art

[0002] In current surgical procedures, tissue traction is generally achieved by mechanically clamping with surgical forceps, which relies on physical squeezing to fix the tissue. However, parathyroid adenomas have no capsule and are extremely brittle. Clamping with forceps can easily cause the tumor to fragment, greatly affecting the operation. The fragmented tissue can also lead to the implantation and dissemination of tumor cells. The residual ruptured tissue may cause iatrogenic implantation and metastasis, and may also lead to pathological diagnosis obstacles. The broken samples are difficult to meet the pathology department's diagnostic needs for intact tissue, affecting the formulation of subsequent treatment plans. In addition, since most parathyroid tumors are generally around 2 cm, the operating range is small, but general instruments are straight instruments, which will block the line of sight during clamping and traction, making the operation more difficult.

[0003] In summary, how to reduce the difficulty of tumor surgery is an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a surgical traction device that controls the attraction of attached tissue through negative pressure to achieve zero-squeeze traction, avoid parathyroid tumor fragmentation, and reduce obstruction of surgical vision.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] A surgical traction device, comprising:

[0007] A traction portion, wherein a traction cavity is provided in the traction portion, the traction cavity is used to communicate with a negative pressure device to form a negative pressure in the traction cavity, and the traction portion is provided with a plurality of traction holes communicated with the traction cavity;

[0008] A handheld portion is connected to the traction portion, and a center line of the handheld portion and a center line of the traction portion have a non-zero angle.

[0009] Furthermore, the present invention has a hollow rod-shaped structure, and is connected to the traction cavity. The end of the handheld part away from the traction part is provided with a quick connector for connecting to the negative pressure device through a pipeline.

[0010] Furthermore, the present invention provides that the traction portion includes a traction surface and a traction cover, the traction surface and the traction cover are fixedly connected to form the traction cavity, and a plurality of the traction holes are evenly distributed on the traction surface.

[0011] Furthermore, the present invention is provided with a control member on the handheld portion for controlling the negative pressure state of the traction cavity.

[0012] Furthermore, the present invention provides that the control member is a control button and / or a through hole, and the control button is used to control the negative pressure state in the handheld part.

[0013] Furthermore, the present invention, the control button can be a valve or a control switch. When a control switch is used, the control button is electrically connected to the negative pressure device.

[0014] Furthermore, the present invention provides that the hand-held portion and the traction cover are integrally formed.

[0015] Furthermore, the present invention is that the traction surface is a concave surface with its opening facing away from the traction cover.

[0016] Furthermore, the present invention provides that the traction cover is connected to the handheld portion in a detachable manner, and a sealing structure is provided at the connection between the traction cover and the handheld portion.

[0017] Furthermore, the present invention is provided with a constant pressure valve on the handheld portion or the traction cover.

[0018] The surgical traction device provided by the present invention, when in use, connects the traction part and the handheld part, and connects the traction cavity and the negative pressure device to form a negative pressure in the traction cavity. The traction part is provided with a plurality of traction holes connected to the traction cavity, so that the negative pressure device maintains a negative pressure state inside the traction cavity. At this time, the traction holes on the traction part are in an air-inhaling state. The traction part is brought into contact with the tumor tissue to achieve adsorption of the tumor tissue, and the user can move the tumor by taking the handheld part, avoiding the risk of tumor fragmentation and double clinical complications caused by mechanical clamping. The negative pressure is controlled to attract the attached tissue to achieve zero-compression traction, avoid parathyroid tumor fragmentation, avoid tumor cell implantation and spread, and ensure the requirement of intact tumor tissue for pathological diagnosis. At the same time, the center line of the handheld part and the center line of the traction part have a non-zero angle. That is, there is a preset angle between the handheld part and the traction part, which reduces the projected area of ​​the handheld part on a plane, thereby greatly reducing the traction device's obstruction of the user's field of view, ensuring a clear surgical field of view and convenient user operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0020] Figure 1 This is a schematic diagram of the overall front axial structure provided by the present invention;

[0021] Figure 2 This is a schematic diagram of the overall top view of the structure provided by the present invention;

[0022] Figure 3 This is a schematic structural diagram of the overall back axial side provided by the present invention;

[0023] Figure 4 This is a schematic structural diagram of the overall front cross-section axial side provided by the present invention;

[0024] Figure 5 This is a schematic diagram of the overall top-view cross-section of the present invention.

[0025] Figure 1-Figure 5 , the reference numerals include:

[0026] 1. Traction unit; 101. Traction chamber; 102. Traction cover; 103. Traction surface; 104. Traction hole; 2. Handle; 3. Quick connector; 4. Control part; 5. Smoke exhaust hole. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] The core of the present invention is to provide a surgical traction device that controls the attraction of attached tissues through negative pressure to achieve zero-squeeze traction, avoid parathyroid tumor fragmentation, and reduce obstruction of the surgical field of view.

[0029] Please refer to Figure 2 A surgical traction device includes a traction part 1, a traction cavity 101 is provided in the traction part 1, and the traction cavity 101 is used to communicate with the negative pressure device to form a negative pressure in the traction cavity 101. The traction part 1 is provided with a plurality of traction holes 104 that are communicated with the traction cavity 101. That is to say, the traction part 1 cooperates with the traction cavity 101 and the traction holes 104 therein. When it is communicated with the negative pressure device, the negative pressure device keeps the inside of the traction cavity 101 in a negative pressure state. At this time, the traction holes 104 on the traction part 1 are in an inhalation state. By contacting the traction part 1 with the tumor tissue, the adsorption of the tumor tissue can be achieved. The handheld part 2 is connected to the traction part 1, and the center line of the handheld part 2 has a non-zero angle with the center line of the traction part 1. The user can move the tumor by taking the handheld part 2.

[0030] It should be noted that the negative pressure device in the embodiment of the present invention can adopt the central negative pressure system of the operating room. By directly connecting the traction cavity 101 to the central negative pressure system of the operating room through a pipeline, negative pressure can be formed in the traction cavity 101, or a portable electric suction device can be used to achieve negative pressure in the traction cavity 101.

[0031] Optionally, in some embodiments, the hand-held part 2 and the traction part 1 can be connected in a fixed or detachable manner. When a fixed manner is adopted, the hand-held part 2 and the traction part 1 can be integrally molded, and both the hand-held part 2 and the traction part 1 are made of materials such as PVC and PE to facilitate their production and have lower costs.

[0032] Optionally, in some embodiments, in order to further improve the sterility requirements during the operation, the hand-held part 2 and the traction part 1 are both made of materials that can be sterilized at high temperature, such as stainless steel, ceramic, high-temperature rubber and other materials.

[0033] Optionally, in some embodiments, in order to further improve the sterility requirements during the operation, a disposable protective cover can be installed on the traction part 1. Specifically, the protective cover is provided with a number of through holes corresponding to the traction holes 104. When it is installed on the traction part 1, it can protect the traction part 1 and reduce the difficulty of subsequent cleaning and disinfection.

[0034] Optionally, in some embodiments, the handheld portion 2 and the traction portion 1 can be disposable, that is, the handheld portion 2 and the traction portion 1 are made of low-cost materials and are disposed of as medical waste after a single use.

[0035] During use, the traction unit 1 is connected to the handheld unit 2, and the traction cavity 101 is connected to the negative pressure device to generate a negative pressure within the traction cavity 101. The traction unit 1 is provided with a plurality of traction holes 104 that are connected to the traction cavity 101. The negative pressure device maintains a negative pressure state within the traction cavity 101. At this time, the traction holes 104 on the traction unit 1 are in the suction state. The traction unit 1 is brought into contact with the tumor tissue to achieve adsorption of the tumor tissue. The user can move the tumor by grasping the handheld unit 2, avoiding the risks of tumor fragmentation and double clinical complications caused by mechanical clamping. Negative pressure is used to control the attraction of the attached tissue to achieve zero-compression traction, preventing parathyroid tumor fragmentation and tumor cell seeding and dissemination, while ensuring the intact tumor tissue required for pathological diagnosis. At the same time, the centerline of the handheld unit 2 and the centerline of the traction unit 1 have a non-zero angle. In other words, the predetermined angle between the handheld unit 2 and the traction unit 1 reduces their projected area on a plane, thereby greatly reducing the traction device's obstruction of the user's field of view, ensuring a clear surgical field of view and facilitating user operation.

[0036] Please refer to Figure 1In some embodiments, the handheld portion 2 is a hollow rod-shaped structure and is connected to the traction cavity 101. That is to say, the handheld portion 2 adopts a rod-shaped structure to facilitate the user to take it during surgery. In addition, the handheld rod is a hollow structure, and a quick connector 3 is provided at the end of the handheld portion 2 away from the traction portion 1, which is used to connect with the negative pressure device through a pipeline. Therefore, when in use, the quick connector 3 can be used to quickly connect to the negative pressure device, which is conducive to improving convenience during use.

[0037] Optionally, in some embodiments, the hand-held portion 2 is provided with textures suitable for hand-holding to enhance the gripping force when held in hand.

[0038] Optionally, in some embodiments, the handheld portion 2 is provided with anti-slip lines or an anti-slip rubber cover to achieve an anti-slip effect when the user holds it in use.

[0039] Optionally, in some embodiments, in order to further facilitate the use of the user, the shape of the handheld portion 2 can be designed according to the use requirements, such as adopting an arc or curved structure, which can further increase the field of view during surgery.

[0040] Optionally, in some embodiments, the handheld portion 2 may adopt a telescopic structure. Specifically, the handheld portion 2 is a multi-section structure, and the multi-section structures are sleeved, so the length of the handheld portion 2 can be adjusted by adjusting the overlapping length of the multi-section structures.

[0041] Please refer to Figure 1 In some embodiments, the traction portion 1 includes a traction surface 103 and a traction cover 102. The traction surface 103 and the traction cover 102 are fixedly connected to form a traction cavity 101. A plurality of traction holes 104 are evenly distributed on the traction surface 103. That is, the traction holes 104 are set on the traction surface 103. After the user takes the handheld part 2, the traction surface 103 is aligned with the tumor to be tractioned, thereby achieving traction of the tumor tissue.

[0042] Optionally, in some embodiments, the traction surface 103 is provided with anti-slip lines or anti-slip protrusions to increase the anti-slip property when in contact with the tumor, improve the stability when traction is applied to the tumor tissue, and reduce the risk of falling off.

[0043] Smoke will be generated during surgery, that is, energy instruments such as ultra-scalpels or electric knives will generate smoke during surgery, which will affect the surgical field of view. Therefore, in the embodiment of the present invention, at least one smoke exhaust hole 5 is provided on the traction cover 102. When the traction surface 103 pulls the tumor tissue, the traction hole 104 draws the smoke generated by the instrument into the traction cavity 101, and then discharges it through the smoke exhaust hole 5, or directly enters the negative pressure device, which can greatly reduce the impact of the smoke on the surgical process, ensuring the traction function while also ensuring the treatment of the smoke.

[0044] In the above embodiment, the diameter of the smoke exhaust hole 5 is set according to actual conditions, and it is only necessary to ensure that there is sufficient negative pressure in the traction cavity 101.

[0045] In the above embodiment, a one-way valve that can only be opened to the outside of the traction chamber 101 is provided at the smoke exhaust hole 5 , and the one-way valve ensures that there is sufficient negative pressure in the traction chamber 101 .

[0046] Optionally, in some embodiments, the smoke exhaust hole 5 is arranged at one end away from the traction surface 103. By setting the position of the smoke exhaust hole 5, it can be ensured that the smoke exhausted from the smoke exhaust hole 5 is away from the traction surface 103, thereby improving the efficiency of smoke exhaust.

[0047] Optionally, in some embodiments, the traction surface 103 may be made of a soft material, such as rubber, silicone, etc., which has a deformation function. Through its deformation, it can more easily fit the tumor tissue, which is more conducive to the adsorption and traction effect on the tumor tissue.

[0048] Optionally, in some embodiments, the traction surface 103 is detachably connected to the traction cover 102, that is, the detachable traction surface 103 can be removed after use and replaced with a new traction surface 103, making the traction surface 103 disposable, thereby increasing safety during surgery.

[0049] Please refer to Figure 1 In some embodiments, the handheld portion 2 is provided with a control member 4 for controlling the negative pressure state of the traction cavity 101. That is, the user can control the negative pressure state in the traction cavity 101 through the control member 4 of the handheld portion 2 to achieve the purpose of adsorbing tumor tissue and adjusting the posture during the operation.

[0050] Optionally, in some embodiments, the control member 4 is a physical structure. Specifically, a pressure relief hole is provided on the handheld portion 2, and a guide column is slidably installed in the pressure relief hole. The guide column is a hollow structure, and an opening is provided at one end of the guide column extending out of the handheld portion 2. The opening is provided on the side of the guide column. Therefore, the opening and closing of the pressure relief hole can be achieved by changing the position of the guide column.

[0051] In the above embodiment, a reset member is provided on the handheld portion 2, and the reset member is used to provide a pre-tightening force for the guide column to extend out of the pressure relief hole, so that the pressure relief hole can be closed by pressing the guide column during use.

[0052] Optionally, in some embodiments, the control member 4 is a control button and / or a through hole, the control button is used to control the negative pressure state of the handheld part 2, and the through hole can be closed by pressing, that is, the control member 4 adopts a through hole provided on the handheld part 2, and its opening and closing function can also be realized. Specifically, the user can close the through hole by pressing the through hole with a finger, and open it by releasing the finger, which is more convenient for controlling the negative pressure state in the traction cavity 101, and when in use, the control button and the through hole can be both provided on the handheld part 2, and a double insurance mode is adopted to enhance the use effect of the device.

[0053] Optionally, in some embodiments, the control button may be a valve. Specifically, a pressure relief valve is installed on the handheld portion 2 , and the user can control the negative pressure state in the traction chamber 101 by opening and closing the pressure relief valve.

[0054] In other embodiments, the control button may adopt a control switch. When the control switch is adopted, the control button is electrically connected to the negative pressure device. That is to say, the control switch adopts an electrical component and is electrically connected to the negative pressure device. Therefore, when it is necessary to control the negative pressure state in the traction cavity 101, the user presses the control switch to effectively and quickly adjust the negative pressure state in the traction cavity 101, and the control switch has better stability in use. When the user takes the handheld part 2, the control switch can be pressed at different times throughout the entire process, which further facilitates the user's use.

[0055] In other embodiments, when the control button adopts a control switch, a solenoid valve can be installed on the handheld part 2, the outlet of the solenoid valve is connected to the outside world, and the control button is electrically connected to the solenoid valve. Therefore, the switch of the control button can control the opening and closing of the solenoid valve, thereby achieving the purpose of controlling the negative pressure state in the traction cavity 101.

[0056] Please refer to Figure 1 In some embodiments, the traction surface 103 is a concave surface with its opening facing away from the traction cover 102. That is, the traction surface 103 is a concave structure as a whole, and its concave surface contacts the tumor tissue, which can increase the contact area with the tumor tissue and increase the traction effect on the tumor tissue.

[0057] In the above embodiment, the traction surface 103 is a hemispherical surface, the traction cover 102 is also a hemispherical structure, and the diameter of the traction surface 103 is larger than the diameter of the traction cover 102 .

[0058] That is to say, there is a preset angle between the axis of the rod-shaped handheld portion and the spherical surface of the spherical traction cover, and the preset angle can greatly reduce the obstruction of the line of sight during use.

[0059] Optionally, in some embodiments, when the traction surface 103 is made of soft material, such as rubber, cloth or PVC, in order to avoid excessive deformation of the traction surface 103, a connecting rope can be installed in the traction cavity 101, and the two ends of the connecting rope are fixedly connected to the traction surface 103 and the traction cover 102 respectively to ensure that the maximum deformation position of the traction surface 103 is limited.

[0060] Optionally, in some embodiments, the traction cover 102 is connected to the handheld part 2 in a detachable manner. Specifically, the detachable manner allows for convenient replacement of different traction parts 1. On the one hand, the traction part 1 can be replaced as a disposable part. On the other hand, traction parts 1 of different sizes can also be replaced to cope with different surgical environments.

[0061] In the above embodiment, the handheld portion 2 and the traction cover 102 can be connected by threaded connection or plug-in connection.

[0062] Optionally, in some embodiments, a sealing structure is provided at the connection between the traction cover 102 and the hand-held part 2, and the sealing structure can increase its sealing performance. Specifically, the sealing structure is a sealing retaining ring provided on the hand-held part 2, and a rubber ring is provided on the sealing retaining ring. When the hand-held part 2 is installed on the traction cover 102, the rubber ring is squeezed between the sealing retaining ring and the traction cover 102, thereby ensuring its sealing performance.

[0063] In other embodiments, the traction cover 102 and the handheld part 2 are fixed, that is, the entire device is replaced as a disposable part, which can further enhance the safety required for the operation.

[0064] Optionally, in some embodiments, a constant pressure valve is provided on the handheld portion 2 or the traction cover 102. That is, by providing the constant pressure valve, the negative pressure in the traction cavity 101 is stabilized, further improving the stability of traction on the tumor tissue.

[0065] In the above embodiment, the constant pressure valve may adopt an electronic constant pressure valve with a PID algorithm, which can control the negative pressure fluctuation within ±5 mmHg, thereby effectively avoiding damage to tumor tissue.

[0066] Optionally, in some embodiments, a constant pressure valve may be installed at the smoke exhaust hole 5 , which can ensure the smoke exhaust function of the smoke exhaust hole 5 on the one hand, and reduce the number of openings of the device on the other hand, further ensuring the traction force of the device.

[0067] In other words, the focus of the present invention is that the negative pressure device maintains a negative pressure state inside the traction cavity 101. At this time, the traction hole 104 on the traction part 1 is in an inhalation state. By bringing the traction part 1 into contact with the tumor tissue, the adsorption of the tumor tissue can be achieved, and the user can move the tumor by taking the handheld part 2, avoiding the risk of tumor fragmentation and double clinical consequences caused by mechanical clamping. The negative pressure control attracts the attached tissue to achieve zero-squeeze traction, avoid parathyroid tumor fragmentation, avoid tumor cell implantation and spread, and ensure the pathological diagnosis of intact tumor tissue. At the same time, the center line of the handheld part 2 has a non-zero angle with the center line of the traction part 1. That is, there is a preset angle between the handheld part 2 and the traction part 1, which reduces the projection area on a plane, thereby greatly reducing the traction device's obstruction of the user's field of view, ensuring a clear surgical field of view, and facilitating user operation.

[0068] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0069] The above is a detailed introduction to a surgical traction device provided by the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only intended to help understand the method and core concept of the present invention. It should be pointed out that, for those skilled in the art, several improvements and modifications can be made to the present invention without departing from the principles of the present invention, and these improvements and modifications also fall within the scope of protection of the present invention.

Claims

1. A surgical traction device, characterized in that: include: A traction portion (1), wherein a traction cavity (101) is provided in the traction portion (1), the traction cavity (101) is used to communicate with a negative pressure device to form a negative pressure in the traction cavity (101), and the traction portion (1) is provided with a plurality of traction holes (104) that communicate with the traction cavity (101); A handheld portion (2), the handheld portion (2) being connected to the traction portion (1), and a center line of the handheld portion (2) and a center line of the traction portion (1) having a non-zero angle.

2. The surgical traction device according to claim 1, characterized in that: The handheld portion (2) is a hollow rod-shaped structure and is in communication with the traction cavity (101). An end of the handheld portion (2) away from the traction portion (1) is provided with a quick connector (3) for communicating with the negative pressure device through a pipeline.

3. The surgical traction device according to claim 1, characterized in that: The traction portion (1) comprises a traction surface (103) and a traction cover (102); the traction surface (103) and the traction cover (102) are fixedly connected and form the traction cavity (101); and a plurality of traction holes (104) are evenly distributed on the traction surface (103).

4. The surgical traction device according to claim 3, characterized in that: The handheld portion (2) is provided with a control component (4) for controlling the negative pressure state of the traction cavity (101).

5. The surgical traction device according to claim 4, characterized in that: The control member (4) is a control button and / or a through hole, and the control button is used to control the negative pressure state in the handheld part (2).

6. The surgical traction device according to claim 5, characterized in that: The control button can be a valve or a control switch. When a control switch is used, the control button is electrically connected to the negative pressure device.

7. The surgical traction device according to any one of claims 3 to 6, characterized in that: The handheld portion (2) and the traction cover (102) are integrally formed.

8. The surgical traction device according to any one of claims 3 to 6, characterized in that: The traction surface (103) is a concave surface with an opening facing away from the traction cover (102).

9. The surgical traction device according to any one of claims 3 to 6, characterized in that: The traction cover (102) and the handheld portion (2) are connected in a detachable manner, and a sealing structure is provided at the connection between the traction cover (102) and the handheld portion (2).

10. The surgical traction device according to any one of claims 3 to 6, characterized in that: A constant pressure valve is provided on the handheld portion (2) or the traction cover (102).

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