Laryngeal membrane implantation system combined with central vein puncture device

Abstract

The invention belongs to the technical field of medical treatment, and discloses a laryngeal membrane implantation system combined with a central vein puncture device, which comprises a self-retaining laryngoscope, a hollow puncture needle, a catheter sleeved on the puncture needle, a skin expander, a metal guide wire, a central vein catheter, a non-absorbable suture and a laryngeal membrane. The puncture needle penetrates into the laryngeal cavity, and the catheter is retained. And guiding by using a metal guide wire, expanding the skin by using a skin expander, and smoothly placing into the central venous catheter. The central venous catheter is pulled out of the self-retaining laryngoscope, and the non-absorbable suture is reversely arranged along the tip of the catheter, so that the suture smoothly penetrates out of the larynx from the inside of the larynx to the outside of the larynx, the laryngeal membrane is firmly fixed on the larynx, and further adhesion of vocal cords is avoided. Components required by the invention are simple and easy to obtain. Compared with a traditional method, the method is simple and easy to operate, saves operation time and is easy to popularize nationwide.

Description

Technical Field

[0001] The present invention belongs to but is not limited to the field of medical technology, and in particular relates to a laryngeal membrane insertion system combined with a central venous puncture device. Background Art

[0002] At present, the repair of vocal cord adhesion is still one of the difficulties in laryngeal surgery. The pathogenic factors of this disease are diverse and complex, mostly due to surgical trauma. Patients have obvious hoarseness and difficulty in pronunciation. Patients with severe vocal cord adhesion may even have difficulty breathing, which is life-threatening. There are many treatment methods for vocal cord adhesion, such as laryngeal fissure T-tube insertion, unilateral / bilateral microflap preparation + microsuturing, and laryngeal membrane insertion under supported laryngoscope. Different methods are applicable to different scenarios and each has its own advantages and disadvantages.

[0003] The laryngeal membrane implantation under supported laryngoscope is currently the most mainstream treatment for vocal cord adhesion in clinical practice. The implanted laryngeal membrane needs to be folded into an inverted 'V' shape and fixed to the anterior joint area of ​​the vocal cords by sutures. At present, major hospitals usually use two methods to fix the laryngeal membrane through needle insertion. One is the method of inserting the needle from the inside of the larynx to the outside. However, due to the narrow operating space in the larynx under supported laryngoscope, it is difficult to insert the needle from the inside of the laryngeal cavity to the outside. In some obese patients, the needle inserted from the inside of the larynx cannot be smoothly clamped outside the larynx, causing the operation to fall into a dilemma. Another option is to insert the puncture needle from the outside of the larynx into the larynx, and then use laryngeal forceps under the endoscope to clamp the suture, pass the line outward along the needle in the larynx, and make it pass out of the larynx little by little. This method also has the disadvantages of difficulty in operation in a narrow space and long operation time. Some scholars have also invented a new laryngeal membrane implantation puncture device to simplify the process of passing the line from the inside of the larynx to the outside of the larynx, but this type of device has a complex structure and is difficult to promote in major hospitals across the country. Therefore, the present invention provides a laryngeal membrane implantation method combined with a central venous puncture device. The method is simple and easy to operate, and the central venous puncture equipment used can be easily obtained in major hospitals, which is suitable for promotion nationwide.

[0004] In view of the above analysis, the technical problems that need to be solved urgently in the prior art are:

[0005] Currently, there is still no method that can completely solve vocal cord adhesion. Summary of the invention

[0006] In view of the problems existing in the prior art, the present invention provides a laryngeal membrane implantation system and method combined with a central venous puncture device.

[0007] The present invention is implemented as follows: a laryngeal membrane insertion system combined with a central venous puncture device, comprising:

[0008] A laryngoscope is supported to provide visualization of the laryngeal cavity;

[0009] A puncture assembly, including a hollow puncture needle and a cannula catheter, used for puncturing the cricothyroid membrane and the notch on the thyroid cartilage plate and establishing a channel;

[0010] A guidewire assembly, including a bendable metal guidewire, used to guide the passage of a medical device along a puncture channel;

[0011] A skin expansion assembly, including a skin expander, for expanding tissue within the puncture channel;

[0012] Catheter assemblies, including central venous catheters, are used to advance sutures over guidewires and to pull sutures into the laryngeal cavity;

[0013] a suture assembly, including nonabsorbable sutures, for securing the laryngeal membrane through the puncture channel;

[0014] Fixation assembly for adjusting the laryngeal membrane position and suture fixation at the neck.

[0015] Furthermore, the supporting laryngoscope includes an optical lens with adjustable angle to provide fields of view at different angles in the laryngeal cavity.

[0016] Furthermore, the puncture needle of the puncture assembly is a hollow structure and is provided with marking scales to accurately control the puncture depth.

[0017] Furthermore, the metal guide wire of the guide wire assembly has a flexible tip to reduce damage to laryngeal cavity tissue.

[0018] Furthermore, the skin expander of the skin expansion assembly has a tapered structure to reduce tissue resistance and maintain channel stability.

[0019] Furthermore, the central venous catheter of the catheter assembly has a multi-side hole structure to facilitate the passage of sutures and reduce resistance.

[0020] Furthermore, the fixing assembly includes a locking mechanism to prevent the laryngeal membrane from shifting in position after fixation.

[0021] Another object of the present invention is to provide a laryngeal membrane implantation method of a combined central venous puncture device and a laryngeal membrane implantation system of a combined central venous puncture device, comprising:

[0022] S1: Prepare the necessary items;

[0023] S2: Pass a nonabsorbable suture through the laryngeal membrane;

[0024] S3: Disinfect the skin in front of the throat with iodine and locate two puncture points;

[0025] S4: Use the puncture needle to puncture the laryngeal cavity from the cricothyroid membrane puncture point until the puncture catheter can be observed under the support laryngoscope, and then withdraw the puncture needle;

[0026] S5: Insert a guidewire from the puncture catheter, remove the guidewire from the supporting laryngoscope, and withdraw the puncture catheter;

[0027] S6: Use the skin expander to expand the skin along the guide wire and then withdraw the skin expander;

[0028] S7: Insert the central venous catheter along the guidewire and pull it out from the laryngeal cavity under the support laryngoscope;

[0029] S8: Insert one end of the suture from the tip of the central venous catheter to the outside of the jugular and withdraw from the central venous catheter;

[0030] S9: Use the same method to insert the puncture needle into the laryngeal cavity from the puncture point on the thyroid cartilage plate until the puncture catheter can be observed under the supporting laryngoscope, and then withdraw the puncture needle;

[0031] S10: Using the same method as steps S4-S7, the other end of the suture is inserted from the tip of the central venous catheter to the outside of the neck;

[0032] S11: Adjust the position of the laryngeal membrane and tie a knot outside the neck to fix the laryngeal membrane.

[0033] Furthermore, the two puncture points are the cricothyroid membrane and the notch on the thyroid cartilage plate.

[0034] Furthermore, the laryngeal membrane implantation method combined with the central venous puncture device uses components including: a supporting laryngoscope; a hollow puncture needle; a catheter sleeved on the puncture needle; a skin dilator; a metal guide wire; a central venous catheter; non-absorbable sutures; and a laryngeal membrane.

[0035] In combination with the above technical solutions and the technical problems solved, the advantages and positive effects of the technical solutions to be protected by the present invention are as follows:

[0036] The method of the present invention is used to insert the laryngeal membrane, with a high success rate, standardized operation process, short time, simple and easy to learn, simple and easy to obtain device, less sanitary consumables, low cost, less potential complications, and easy to promote.

[0037] 1. The technical solution after transformation of the present invention has clear expected benefits, which are specifically reflected in: effective expansion of the technical field. The present invention provides a novel, simple and practical laryngeal membrane implantation method, which can not only improve the safety and efficacy of conventional laryngeal membrane implantation surgery, but also significantly improve the success rate in complex cases, effectively expanding its clinical application field.

[0038] 2. In terms of commercial value, the present invention has obvious advantages in market competition. The existing laryngeal membrane implantation methods on the market have problems such as the need for special equipment customization, complicated operation, and high cost. The equipment required by the present invention is easy to obtain, low cost, and can be widely promoted, with huge market potential. With the increasing number of minimally invasive vocal cord surgeries in hospitals at all levels across the country, the demand for effective methods of laryngeal membrane implantation to prevent vocal cord adhesion is also rapidly expanding.

[0039] 3. In addition, the economic benefits of the present invention are outstanding. By promoting this technology, not only can the hospital's diagnosis and treatment capabilities be significantly improved, but also the patient's medical costs can be reduced, thereby attracting a larger patient population and achieving a common improvement in the economic benefits of both the hospital and the patient. At the same time, the innovative advantages of this technology will also significantly enhance the company's brand value, establish an industry-leading position, and gain wide recognition from relevant medical institutions and the market.

[0040] 4. The present invention also effectively overcomes the technical prejudice in the current technical field. The existing laryngeal membrane implantation technology is generally considered difficult to improve due to the limitations of high operation difficulty, high cost, long time consumption, and poor effect on patients with thick and short necks. The present invention creatively combines the central venous puncture device with the laryngeal membrane implantation process, breaking through the above prejudice and providing a more efficient, more economical and more convenient new technical solution. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 is a flow chart of a laryngeal membrane implantation method of a combined central venous puncture device provided in an embodiment of the present invention;

[0042] Figure 2 These are items required for implementation of the embodiments of the present invention;

[0043] Figure 3 is a schematic diagram of laryngeal membrane preparation provided by an embodiment of the present invention;

[0044] Figure 4 It is a schematic diagram of inserting a guidewire under a supported laryngoscope provided by an embodiment of the present invention;

[0045] Figure 5 It is a schematic diagram of inserting a central venous catheter under a laryngoscope provided by an embodiment of the present invention;

[0046] Figure 6 Schematic diagram of fixing the laryngeal membrane under the support laryngoscope provided by an embodiment of the present invention;

[0047] Figure 7 It is a physical picture of items required for implementation provided by the embodiment of the present invention;

[0048] Figure 8 is a diagram of the laryngeal membrane placement process of the combined central venous puncture device provided by an embodiment of the present invention;

[0049] In the figure: 1. Support laryngoscope; 2. Hollow puncture needle; 3. Catheter on the puncture needle; 4. Skin dilator; 5. Metal guide wire; 6. Central venous catheter; 7. Non-absorbable suture; 8. Laryngeal membrane. DETAILED DESCRIPTION

[0050] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0051] The method provided by the present invention first requires the preparation of all necessary medical equipment, including a supporting laryngoscope, a puncture needle, a guide wire, a central venous catheter, and non-absorbable sutures. After disinfecting the anterior neck area of ​​the patient with iodine, the operator accurately locates two puncture points, namely the cricothyroid membrane and the notch on the thyroid cartilage plate. The cricothyroid membrane puncture point is used for the initial insertion of the guide wire, while the notch puncture point on the thyroid cartilage plate is used for subsequent fixation operations to ensure that the laryngeal membrane can remain stable in the anatomical structure.

[0052] With the assistance of the supporting laryngoscope, the operator uses a hollow puncture needle to puncture the laryngeal cavity from the cricothyroid membrane puncture point, and after observing that the puncture catheter has entered the laryngeal cavity, the puncture needle is removed, leaving the puncture catheter in the laryngeal cavity. Subsequently, a metal guide wire is inserted through the puncture catheter, and the guide wire is led out of the laryngeal cavity through the supporting laryngoscope, and then the puncture catheter is removed. The key to this step is to ensure that the guide wire passes through the cricothyroid membrane smoothly and can maintain an appropriate position in the laryngeal cavity to provide support for the subsequent laryngeal membrane placement.

[0053] After the guidewire successfully enters the laryngeal cavity, the surgeon uses a skin dilator to expand the puncture channel along the guidewire to reduce the tension of the soft tissue and prevent resistance when the catheter is inserted. After the skin dilation is completed, the skin dilator is removed and the central venous catheter is inserted along the guidewire. Under the guidance of the supporting laryngoscope, the surgeon pulls the catheter from the laryngeal cavity to the outside of the body, ensuring that the catheter passes through the predetermined path correctly. The key to this process is to maintain the directionality of the catheter to avoid entering other tissue layers by mistake and reduce local tissue damage.

[0054] After successfully inserting the central venous catheter, the surgeon inserts one end of the non-absorbable suture from the tip of the catheter, guides the suture through the skin in front of the neck, and finally pulls out the guide wire to remove the central venous catheter. In the same way, the surgeon performs a second puncture at the notch puncture point on the thyroid cartilage plate and inserts the second central venous catheter along the guide wire. With the assistance of a supporting laryngoscope, the surgeon again guides the suture into the laryngeal cavity and delivers the other end of the suture to the outside of the neck through the path of the central venous catheter. The purpose of this step is to ensure that the suture passes through the key part of the laryngeal membrane and provide stable support for the final fixation of the laryngeal membrane.

[0055] After both sutures have been successfully passed through the neck, the surgeon adjusts the position of the laryngeal membrane so that it is firmly placed in the laryngeal cavity structure. During the adjustment process, it is necessary to ensure that the laryngeal membrane is placed symmetrically and maintained at the appropriate anatomical level to avoid postoperative displacement or loosening. Through the surgeon's operation, the tension of the laryngeal membrane can be gradually adjusted to make it fit closely to the anatomical position, and to avoid excessive traction and discomfort during fixation.

[0056] After the adjustment is completed, the surgeon ties a knot in the anterior neck area to fix the laryngeal membrane in the target area to prevent displacement after surgery. After surgery, the surgeon can check the laryngeal cavity structure again and end the operation after confirming that the laryngeal membrane is in the correct position. The entire process combines the precise puncture advantages of the central venous puncture device and the stability of minimally invasive laryngeal membrane placement, which not only reduces surgical damage, but also improves the accuracy of laryngeal membrane placement and reduces the risk of postoperative complications.

[0057] like Figure 1 As shown, an embodiment of the present invention provides a laryngeal membrane insertion method combined with a central venous puncture device, the method specifically comprising:

[0058] S1: See Figure 2 , prepare the necessary items.

[0059] S2: See Figure 3 , pass the non-absorbable suture 7 through the laryngeal membrane 8.

[0060] S3: Disinfect the skin in front of the larynx with iodine and locate two puncture points (the notch on the cricothyroid membrane and the thyroid cartilage plate)

[0061] S4: See Figure 4 , use the puncture needle 2 to pierce the laryngeal cavity from the cricothyroid membrane puncture point until the puncture catheter 3 can be observed under the supporting laryngoscope 1, and then withdraw the puncture needle 2.

[0062] S5: See Figure 4 , insert the guide wire 5 from the puncture catheter 3, and remove the guide wire 5 from the supporting laryngoscope 1, and withdraw the puncture catheter 3.

[0063] S6: Use the skin expander 4 to expand the skin along the guide wire 2 and then withdraw the skin expander 4.

[0064] S7: See Figure 5 , insert the central venous catheter 6 along the guide wire 5 and pull the central venous catheter 6 out of the laryngeal cavity under the support of the laryngoscope 1.

[0065] S8: See Figure 5 , one end of the suture 7 is sent from the tip of the central venous catheter 6 to the outside of the neck and then withdrawn from the central venous catheter 6.

[0066] S9: Use the puncture needle 2 to pierce the laryngeal cavity from the notch puncture point on the thyroid cartilage plate in the same way until the puncture catheter 3 can be observed under the supporting laryngoscope 1, and then withdraw the puncture needle 2.

[0067] S10: Using the same method as steps S4-S7, the other end of the suture 7 is delivered from the tip of the central venous catheter 6 to the outside of the neck.

[0068] S11: See Figure 6 , adjust the position of the laryngeal membrane 8, and tie a knot outside the neck to fix the laryngeal membrane 8.

[0069] The laryngeal membrane insertion method of the combined central venous puncture device uses a device including: a supporting laryngoscope 1; a hollow puncture needle 2; a catheter 3 sleeved on the puncture needle; a skin dilator 4; a metal guide wire 5; a central venous catheter 6; a non-absorbable suture 7; and a laryngeal membrane 8.

[0070] The present invention uses a combined central venous puncture device to accurately place the laryngeal membrane 8 into a specific position of the patient's laryngeal cavity. The specific working principle is as follows:

[0071] First, in the preoperative preparation stage, the laryngeal membrane 8 is prepared for subsequent fixation by passing the non-absorbable suture 7 through the laryngeal membrane. At the same time, after the patient's neck skin is disinfected, two key puncture points are accurately located, namely, the notch on the cricothyroid membrane and the thyroid cartilage plate, to provide a precise position relationship for the subsequent insertion of the puncture needle 2 and the guide wire 5.

[0072] Subsequently, the puncture needle 2 is used to enter the laryngeal cavity through the cricothyroid membrane puncture point, and the position of the puncture needle 2 forms a connection relationship with the insertion position of the catheter 3 until the position of the puncture catheter 3 is clearly observed through the supporting laryngoscope 1. After the puncture needle 2 is withdrawn, the guide wire 5 is inserted and the skin expander 4 is guided along the guide wire 5 to perform the skin expansion operation, and the skin expander 4 and the guide wire 5 form an assembly relationship. After the skin expansion operation is completed, the skin expander 4 is withdrawn.

[0073] Then, utilizing the assembly relationship between the guide wire 5 and the central venous catheter 6, the central venous catheter 6 is inserted into the laryngeal cavity through the guide wire 5, and finally, under the observation of the supporting laryngoscope 1, the tip of the central venous catheter 6 is pulled out from the laryngeal cavity, so that the catheter 6 passes through the laryngeal cavity and the skin outside the neck, and one end of the suture 7 is guided to the outside of the neck through the catheter 6, and then the catheter 6 is withdrawn to complete the insertion of the first end of the suture 7.

[0074] Finally, with the same operation method and position relationship, another puncture channel is completed through the notch puncture point on the thyroid cartilage plate, and the other end of the suture 7 is inserted outside the neck through the guide wire 5 and the central venous catheter 6, and the position relationship of the laryngeal membrane 8 in the laryngeal cavity is adjusted. Finally, the two ends of the suture 7 are knotted and fixed outside the patient's neck, so that the laryngeal membrane 8 is stably fixed at the target position in the laryngeal cavity.

[0075] The specific application fields of the present invention include all surgical scenarios involving vocal cord adhesion, including congenital vocal cord adhesion or vocal cord adhesion caused by trauma and surgery.

[0076] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any modification, equivalent substitution and improvement made by any technician familiar with the technical field within the technical scope disclosed by the present invention and within the spirit and principle of the present invention should be covered by the protection scope of the present invention.

Claims

1. A laryngeal membrane insertion system combined with a central venous puncture device, characterized in that: include: A laryngoscope is supported to provide visualization of the laryngeal cavity; A puncture assembly, comprising a hollow puncture needle and a cannula catheter, for puncturing the cricothyroid membrane and the notch on the thyroid cartilage plate and establishing a channel; A guidewire assembly, including a bendable metal guidewire, used to guide the passage of a medical device along a puncture channel; A skin expansion assembly, including a skin expander, for expanding tissue within the puncture channel; Catheter assemblies, including central venous catheters, for advancing sutures over guidewires and pulling them into the laryngeal cavity; a suture assembly, including nonabsorbable sutures, for securing the laryngeal membrane through the puncture channel; Fixation assembly for adjusting the laryngeal membrane position and suture fixation at the neck.

2. The laryngeal membrane insertion system combined with the central venous puncture device according to claim 1, characterized in that: The supporting laryngoscope comprises an optical lens with adjustable angle to provide visual fields at different angles in the laryngeal cavity.

3. The laryngeal membrane insertion system combined with the central venous puncture device according to claim 1, characterized in that: The puncture needle of the puncture assembly is a hollow structure and is provided with marking scales to accurately control the puncture depth.

4. The laryngeal membrane insertion system combined with the central venous puncture device according to claim 1, characterized in that: The metal guide wire of the guide wire assembly has a flexible tip to reduce damage to laryngeal cavity tissue.

5. The laryngeal membrane insertion system combined with the central venous puncture device according to claim 1, characterized in that: The skin expander of the skin expansion assembly has a tapered structure to reduce tissue resistance and maintain channel stability.

6. The laryngeal membrane insertion system combined with the central venous puncture device according to claim 1, characterized in that: The central venous catheter of the catheter assembly has a multi-side hole structure to facilitate the passage of sutures and reduce resistance.

7. The laryngeal membrane insertion system combined with the central venous puncture device according to claim 1, characterized in that: The fixing assembly comprises a locking mechanism to prevent the laryngeal membrane from shifting in position after being fixed.

8. A method for inserting a laryngeal membrane in combination with a central venous puncture device of the system according to any one of claims 1 to 7, characterized in that: include: S1: Prepare the necessary items; S2: Pass a nonabsorbable suture through the laryngeal membrane; S3: Disinfect the skin in front of the throat with iodine and locate two puncture points; S4: Use the puncture needle to puncture the laryngeal cavity from the cricothyroid membrane puncture point until the puncture catheter can be observed under the support laryngoscope, and then withdraw the puncture needle; S5: Insert a guidewire from the puncture catheter, remove the guidewire from the supporting laryngoscope, and withdraw the puncture catheter; S6: Use the skin expander to expand the skin along the guide wire and then withdraw the skin expander; S7: Insert the central venous catheter along the guidewire and pull it out from the laryngeal cavity under the support laryngoscope; S8: Insert one end of the suture from the tip of the central venous catheter to the outside of the jugular and withdraw from the central venous catheter; S9: Use the same method to insert the puncture needle into the laryngeal cavity from the puncture point on the thyroid cartilage plate until the puncture catheter can be observed under the supporting laryngoscope, and then withdraw the puncture needle; S10: Using the same method as steps S4-S7, the other end of the suture is inserted from the tip of the central venous catheter to the outside of the neck; S11: Adjust the position of the laryngeal membrane and tie a knot outside the neck to fix the laryngeal membrane.

9. The laryngeal membrane implantation method of the combined central venous puncture device according to claim 8, characterized in that: The two puncture points are the cricothyroid membrane and the notch on the thyroid cartilage plate.

10. The laryngeal membrane implantation method of the combined central venous puncture device according to claim 8, characterized in that: The laryngeal membrane insertion method of the combined central venous puncture device uses components including: a supporting laryngoscope; a hollow puncture needle; a catheter sleeved on the puncture needle; a skin dilator; a metal guide wire; a central venous catheter; a non-absorbable suture; and a laryngeal membrane.

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