Holding device of ureter guiding sheath
By designing a ureteral guide sheath grip device for urology surgery, the problem that the surgeon needs to repeatedly adjust the negative pressure during the operation is solved, and more convenient control of renal pelvic pressure and drainage is achieved, improving the safety and efficiency of the operation.
Patent Information
- Application Number
- CN202421547132.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-02
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-07-02
AI Technical Summary
In urology surgery, the surgeon needs to repeatedly adjust the negative pressure pressure of the ureteral guide sheath to maintain appropriate intra-renoplegia pressure, avoid urinary sepsis and holmium laser thermal damage, while ensuring clear vision of the surgical field.
A gripping device for ureteral guide sheath is designed, including a stent, a control and a limiting part. Through the design of the finger ring and handle, the surgeon can easily adjust the internal pressure and drainage of the renal pelvis through the cooperation of the index finger, middle finger and ring finger to ensure that the baffle is in the stable position in the control cylinder and avoid thermal damage.
This device allows the surgeon to control the intra-pelvic pressure and drainage more conveniently, reduces the complexity and time of manual regulation, improves the safety and efficiency of the surgery, and avoids the risks of urinary sepsis and holmium laser thermal damage.
Smart Images
Figure CN222899951U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical devices, and in particular to a holding device for a ureteral guide sheath. Background Art
[0002] Ureteral guide sheath is a medical device commonly used in urological endoscopic examination and surgery, and is also one of the instruments for urethroscopic examination and treatment. It consists of two parts: a catheter and a catheter shell, and is used to guide the catheter or lens from the urethra or T-tube into the ureter. Reasonable and correct use of the ureteral guide sheath can reduce the patient's pain and trauma, improve the success rate of the operation and the patient's cure rate. In ureteroscopy and ureteroscopy holmium laser lithotripsy, the ureteral guide sheath is a necessary tool. It is guided by the zebra guidewire to The ureteral guide sheath is inserted into the ureter. On the one hand, the sheath can dilate the ureter, and on the other hand, it can make the ureteroscope enter more smoothly, which helps to protect the ureteroscope and ureter. The ureteral guide sheath is mainly inserted from the junction of the renal pelvis and ureter to the lower part of the ureter, so that the ureteroscope can directly enter the kidney through the sheath for surgical operation. The ureteral guide sheath is an important auxiliary tool in urological surgery and examination, which has multiple functions such as reducing patient pain, improving the success rate of surgery, and protecting surgical instruments.
[0003] The ureteral guide sheath consists of two parts: the catheter and the catheter shell. The catheter is a slender object that guides the instrument to the target position and is made of stainless steel or plastic. The design of the catheter head is also one of the key factors in guiding the target position. The head usually adopts a cutting shape or an advanced shape to ensure the smooth guidance of the instrument in the catheter introducer. The catheter head can also take different shapes according to different usage needs. The other part is the catheter shell, which is the place where the catheter is introduced into the body cavity. The catheter shell is mainly divided into two parts: the inner sleeve and the outer sleeve. The outer sleeve is the main body of the ureteral guide sheath and has a suction spring structure. The inner sleeve is made of hard material because it needs to always maintain the stability of the catheter introduction, making it easier for the catheter to enter foreign objects and facilitating disinfection and cleaning.
[0004] In summary, the following technical problems exist in the current use of ureteral guide sheaths: during use, perfusion is required, the perfusion rate is maintained at 50-100 ml per minute, and the negative pressure device is turned on to maintain a continuous negative pressure of 150-200 mmHg. During use, appropriate intrarenal pelvic pressure must be maintained. The negative pressure environment reduces the intrarenal pelvic pressure, reduces the incidence of urinary sepsis, increases the perfusion volume, reduces holmium laser thermal damage, avoids serious complications, and immediately removes turbid water. The surgical field of view is clear and the operation is safer. However, in actual operation, as the operation progresses, the surgeon needs to control and maintain the intrarenal pelvic pressure at an appropriate level, and the surgeon needs to repeatedly adjust the negative pressure to maintain a clear field of view and avoid thermal damage without causing damage. Utility Model Content
[0005] In view of the above problems existing in the prior art, the utility model provides a holding device for a ureteral guide sheath.
[0006] In order to achieve the above technical objectives and the above technical effects, the present invention is implemented through the following technical solutions:
[0007] A holding device for a ureteral guide sheath comprises a support portion, a control portion and a limit portion, wherein the support portion comprises a middle frame, a handle and a control cylinder, a handle is fixedly connected to the lower side of the middle frame, one side of the handle is connected to the control cylinder, the handle is provided with a control portion, the control portion comprises a baffle, a push plate and a control assembly, the baffle cooperates with the control cylinder, the push plate cooperates with the baffle, and the handle is further provided with a limit portion, the limit portion cooperates with the control assembly of the push plate.
[0008] Furthermore, the middle frame is provided with a negative pressure drainer interface, the negative pressure drainer interface position of the middle frame is fixedly connected with a control cylinder, a slide groove is opened on the control cylinder, the baffle is slidably connected in the slide groove, the control assembly includes a control rod and a side rod, the control rod is fixedly connected to the baffle, the right end of the side rod is fixedly connected with a push plate, the push plate is sleeved with the control rod, the push plate abuts against the baffle, the left end of the control rod is fixedly connected with a push handle, a compression spring is fixedly connected between the push handle and the handle, the left end of the push plate is fixedly connected with a limit handle, a compression spring is fixedly connected between the limit handle and the handle, and the limit handle cooperates with the limit portion;
[0009] The control rod and the side rod are slidably connected in the handle, and a groove for sliding of the baffle plate and the push plate is provided in the handle.
[0010] Furthermore, the limiting part includes a fixed seat, a slide, an inclined rod and a limiting block, the fixed seat is fixedly connected to the handle, the fixed seat is located on the side of the limiting plate away from the handle, the fixed seat is fixedly connected to the slide, the limiting block is slidably connected in the slide, the limiting block is fixedly connected to the side close to the limiting handle with an inclined block, and the inclined block cooperates with the limiting handle;
[0011] A tapered hole expanding toward both sides is opened in the middle of the limit block, the limit block is slidably connected with an inclined rod in the tapered hole, a sliding hole cooperating with the inclined rod is opened on the slide frame, the inclined rod is fixedly connected with a pressing plate at one end close to the limit handle, and a slider is fixedly connected with the other end of the inclined rod, the slider is slidably connected to the fixed seat and the handle, a spring is fixedly connected between the slider and the handle, the inclined rod is inclined from the slider to the pressing plate toward the side away from the inclined block, and the width of the slider is greater than the horizontal distance between the two ends of the inclined rod.
[0012] Furthermore, a finger ring is fixedly connected to the middle frame.
[0013] Furthermore, the middle frame is also provided with the structure of the existing ureteral guide sheath, the middle frame is also provided with an intermediate pipeline for the dilator to enter, and the dilator in the intermediate pipeline, the middle frame is also provided with a saline infusion connection interface, and the control cylinder is fixedly connected to the drainage tube interface.
[0014] Beneficial effects of the utility model:
[0015] A holding device for a ureteral guide sheath enables the operator to hold and control the device through a finger ring and a handle. The operator holds the device body by cooperating with the index finger and the middle finger in conjunction with the finger ring, and then places the ring finger and the little finger on the pressing handle and the limiting handle. When it is necessary to control the intra-renal pelvic pressure and adjust the drainage due to the influence of thermal damage caused by the intraoperative operation, the middle finger is used to adjust it. When cooperating with the perfusion clamp drainage, the limiting handle is pressed by the little finger, and the limiting handle cooperates with the inclined block to limit the position, so that the baffle is stabilized in the control cylinder. When it is necessary to resume the drainage, the pressing plate is pressed by the little finger, the inclined block is separated from the limiting handle, and the baffle is reset.
[0016] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0018] Figure 1 This is a schematic diagram of the overall structure of the holding device of the ureteral guide sheath according to an embodiment of the utility model;
[0019] Figure 2 It is a schematic diagram of the cross-sectional structure connection of the holding device of the ureteral guide sheath according to the embodiment of the utility model;
[0020] Figure 3 This is a schematic diagram of the structure of the middle frame, finger ring, handle and control tube according to an embodiment of the utility model;
[0021] Figure 4 This is a schematic diagram of the structure of the control cylinder section, baffle plate and push plate according to the embodiment of the utility model;
[0022] Figure 5 It is a structural schematic diagram of the cross section of the handle and the control cylinder, the control part and the limiting part according to the embodiment of the utility model;
[0023] Figure 6 It is a partial structural schematic diagram of the limiting handle and the limiting part according to the embodiment of the utility model;
[0024] Figure 7 This is a schematic diagram of the structure of the push plate, the inclined rod, the slider and the spring according to the embodiment of the utility model;
[0025] Figure 8 It is a schematic diagram of the cross-sectional structure connection of the slide, the limit block and the inclined block described in the embodiment of the utility model.
[0026] In the accompanying drawings, the components represented by the reference numerals are listed as follows:
[0027] 1-middle frame, 101-finger ring, 102-handle, 110-control cylinder, 111-slide groove, 2-control rod, 201-baffle, 202-side rod, 203-push plate, 204-compression spring, 205-press handle, 206-limit handle, 3-fixed seat, 301-slide frame, 302-slide hole, 310-press plate, 311-oblique rod, 312-sliding block, 313-spring, 320-limiting block, 321-oblique block, 322-taper hole. DETAILED DESCRIPTION
[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0029] Example 1
[0030] like Figure 1-8 Shown
[0031] The utility model discloses a holding device for a ureteral guide sheath, comprising a support part, a control part and a limit part. The support part comprises a middle frame (1), a handle (102) and a control cylinder (110). The lower side of the middle frame (1) is fixedly connected with the handle (102). One side of the handle (102) is connected with the control cylinder (110). The handle (102) is provided with a control part. The control part comprises a baffle (201), a push plate (203) and a control component. The baffle (201) cooperates with the control cylinder (110). The push plate (203) cooperates with the baffle (201). The handle (102) is also provided with a limit part. The limit part cooperates with the control component of the push plate (203).
[0032] The middle frame (1) is provided with a negative pressure drain interface, the negative pressure drain interface of the middle frame (1) is fixedly connected with a control cylinder (110), the control cylinder (110) is provided with a slide groove (111), the baffle (201) is slidably connected in the slide groove (111), the control assembly comprises a control rod (2) and a side rod (202), the control rod (2) is fixedly connected to the baffle (201), the right end of the side rod (202) is fixedly connected with a push plate (203), the push plate (203) is sleeved with the control rod (2), and the push plate (203) is slidably connected with the baffle (201). Abutting, the left end of the control rod (2) is fixedly connected with a push handle (205), a compression spring (204) is fixedly connected between the push handle (205) and the handle (102), the left end of the push plate (203) is fixedly connected with a limit handle (206), a compression spring (204) is fixedly connected between the limit handle (206) and the handle (102), and the limit handle (206) cooperates with the limit part; the control rod (2) and the side rod (202) are slidably connected in the handle (102), and a groove for sliding of the baffle plate (201) and the push plate (203) is opened in the handle (102);
[0033] The middle frame (1) is fixedly connected to a finger ring (101); the middle frame (1) is also provided with a structure of an existing ureteral guide sheath, the middle frame (1) is also provided with an intermediate pipeline for the dilator to enter, and the dilator in the intermediate pipeline, the middle frame (1) is also provided with a saline infusion connection interface, and the control cylinder (110) is fixedly connected to a drainage tube interface.
[0034] Example 2
[0035] like Figure 5-8 Shown
[0036] The limiting part comprises a fixed seat (3), a slide (301), an inclined rod (311) and a limiting block (320); the fixed seat (3) is fixedly connected to the handle (102); the fixed seat (3) is located on the side of the limiting plate away from the pressing handle (205); the fixed seat (3) is fixedly connected to the sliding frame (301); the limiting block (320) is slidably connected inside the sliding frame (301); the limiting block (320) is fixedly connected to the side close to the limiting handle (206); the inclined block (321) cooperates with the limiting handle (206); a tapered hole (322) is opened in the middle of the limiting block (320) and expands toward both sides; the limiting block (320) is in the tapered hole (322) The inclined rod (311) is slidably connected inside, and a sliding hole (302) cooperating with the inclined rod (311) is opened on the slide frame (301); the inclined rod (311) is fixedly connected with a pressing plate (310) at one end close to the limiting handle (206); the other end of the inclined rod (311) is fixedly connected with a sliding block (312); the sliding block (312) is slidably connected to the fixed seat (3) and the handle (102); a spring (313) is fixedly connected between the sliding block (312) and the handle (102); the inclined rod (311) is inclined from the sliding block (312) to the pressing plate (310) to a side away from the inclined block (321); and the width of the sliding block (312) is greater than the horizontal distance between the two ends of the inclined rod (311);
[0037] In summary, the utility model provides a holding device for a ureteral guide sheath, which enables the operator to hold and control the device through a finger ring and a handle, and the operator holds the device body by cooperating with the index finger and the middle finger in conjunction with the finger ring, and then places the ring finger and the little finger on the pressing handle and the limiting handle. When it is necessary to control the intra-renal pelvic pressure and adjust the drainage due to the influence of thermal damage caused by the intraoperative operation, the middle finger is used to adjust it, and when cooperating with the perfusion clamp drainage, the limiting handle is pressed by the little finger, and the limiting handle cooperates with the inclined block to limit the position, so that the baffle is stabilized in the control cylinder. When it is necessary to resume the drainage, the pressing plate is pressed by the little finger, the inclined block is separated from the limiting handle, and the baffle is reset.
[0038] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0039] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A holding device for a ureteral guide sheath, characterized in that: It includes a bracket part, a control part and a limit part. The bracket part includes a middle frame, a handle and a control tube. The lower side of the middle frame is fixedly connected to a handle. One side of the handle is connected to the control tube. The handle is provided with a control part. The control part includes a baffle, a push plate and a control component. The baffle cooperates with the control tube, and the push plate cooperates with the baffle. The handle is also provided with a limit part, and the limit part cooperates with the control component of the push plate.
2. The holding device for the ureteral guide sheath according to claim 1, characterized in that: The middle frame is provided with a negative pressure drainer interface, and a control cylinder is fixedly connected to the negative pressure drainer interface position of the middle frame, a slide groove is opened on the control cylinder, and the baffle is slidably connected in the slide groove. The control assembly includes a control rod and a side rod, the control rod is fixedly connected to the baffle, the right end of the side rod is fixedly connected with a push plate, the push plate is sleeved with the control rod, the push plate abuts against the baffle, the left end of the control rod is fixedly connected with a push handle, a compression spring is fixedly connected between the push handle and the handle, the left end of the push plate is fixedly connected to a limiting handle, a compression spring is fixedly connected between the limiting handle and the handle, and the limiting handle cooperates with the limiting part.
3. The holding device for the ureteral guide sheath according to claim 2, characterized in that: The limiting part includes a fixed seat, a slide, an inclined rod and a limiting block, wherein the fixed seat is fixedly connected to the handle, the fixed seat is located on the side of the limiting plate away from the handle, the fixed seat is fixedly connected to the slide, the limiting block is slidably connected in the slide, the limiting block is fixedly connected to the side close to the limiting handle with an inclined block, and the inclined block cooperates with the limiting handle; A tapered hole expanding toward both sides is opened in the middle of the limit block, the limit block is slidably connected with an inclined rod in the tapered hole, a sliding hole cooperating with the inclined rod is opened on the slide frame, the inclined rod is fixedly connected with a pressing plate at one end close to the limit handle, and a slider is fixedly connected with the other end of the inclined rod, the slider is slidably connected to the fixed seat and the handle, a spring is fixedly connected between the slider and the handle, the inclined rod is inclined from the slider to the pressing plate toward the side away from the inclined block, and the width of the slider is greater than the horizontal distance between the two ends of the inclined rod.
4. The holding device for the ureteral guide sheath according to claim 3, characterized in that: A finger ring is fixedly connected to the middle frame.